T S 3j Hand Book forArchitects Engineers and Superintendents Bridgeport Brass Co Bridgeport ConnUS A *sli M'-:'^^' -,f^i: Hand Book for Architects Engineers and Superintendents With Conveniently Arranged Tables and Prices for Seamless Brass and Copper Tubi ng MARK Copyright 1913, by the Bridgeport Brass Company Bridgeport, Connecticut Bridgeport Brass C o m p Ind ex Administration Bldg., View of 18 Admiralty Mixture and Brass Condenser Tubes, Prices for 3G Aluminum Bronze Rods, etc 2\ American or B. & S. Gauge in Decimals of Inch 59 Annealing and Pickling 15, 17 Areas of Circles for Diameters in Inches and Fractions of Inches from 1/64- to 63/64 Inches 68-71 Areas of Circles for Diameters in Inches and Decimals of Inches 0.1 to 10.0 Inches 74, 75 Areas and Circumferences of Circles 76-86 Areas, Transverse, of Iron Pipe Sizes 38 Areas of Regular Polygons 75 Areas, Rule for Calculating 87 Automobile Wind Shields 24 Bessemer Tubes, Collapsing Pressure of 49 Brass, Copper and Cierman Silver Sheets ~i Brass and Cop])er Rods, Round, Square or Rectangular 24 Brass and Cop})er Tube, Rod and Rolling Mill (Illustration) 10, 16 Brass aaid Copper Tubing, Method of Manu- facturing 13, 21 Brass Seamless Tubes, Iron Pipe Sizes, Prices for 37 Brass Seamless Tubes, Stub's Gauge, Prices for 34, 35 Brass and Copper Tubing, Rules and Regula- tions for use of 53, 54 Brass Seamless Tubes, Stub's Gauge, Weight per foot 26-29 Brass Seamless Tubes, American or B. & S. Gauge, Weight per foot 30-33 Brass Seamless Tubes, Formula for Calculating Collapsing Pressure of _ 49 Brass Seamless Tubes, Weight, Specific Gravity and Tensile Streaigth of 49 Brass Seamless Tubes, Rules for Use Prescribed by Board of Supervising Inspectors of Steamboats -53, 54 Bridgeport Products, List of a Few Other 24 Bridgeport Brass Co.'s Factory in 1865, Re- print from Wood Cut of 1 1 Bronze Rods -f Bronze Tubing, Prices for 35 Capacities of Rectangular Tanks, figured in U. S. gallons for each foot in depth 72 ©Cf.A357852 Bridgeport, Connecticut Cast Shell Process for Manufacturing Tubing 15 Chemical Laboratory (Illustration) 19 Circumference, Rule for Finding 87 Circumferences and Areas of Circles 76-86 Circles, Areas of 68-71, 76-86 Circles, Circumferences and Areas of 76-86 Clark's Diagram of Velocities of Water 66, 67 Colors to be Used on Valves, Flanges and Fit- tings 52 C\)llapsing Pressure of Tubing, Formula for Calculating 49 Cone or Pyramid, Mensuration of 86 Condenser Tubes, Prices for 36, 96 Copper and Brass Rods, Round, Square or Rec- tangular 24 Copper Seamless Tubing, Prices for 35 Copper Seamless Tubes, Rules for Use of. Pre- scribed by Board of Supervising Inspectors of Steamboats 53, 51 Copper Seamless Tubes, Stub's Gauge, Weight per foot 40-43 Copper Seamless Tubes, .vmerican or B. & S. Gauge, Weight per foot 44-47 Copper Seamless Tubes, Formula for Determin- iiig Proper Thickness for 49, 96 Copper Seamless Tul)es, ^\ eight. Specific Grav- ity and Tensile StreJigth 49 Corrosion of Condenser Tubes, Cause of 88-95 Cupping Process for Maaiufacturing Tubing 13 Cutting to Exact Length, Additional Prices for... 37 Cylinder, Mensuration of 86 Data Required to Insure Prompt Execution of Orders 22 D'Arcy's Formula for Flow of Water 64 Decimal Equivalents, Fractions of Inches, Re- duced to 55 De-zincification, Bridgeport Tubes Less Suscept- ible than Others 17 Decagon, Area, etc., of 75 Liameter, Rule for Finding 87 Dodecagon, Area, etc., of 75 Drums, Copper or Brass, Rules for Use of 53 Engine Room, Corner of (Illustration) 23 Equal Square, Rule for Finding Side of 87 Equivalents, Fractions of Inch in Decimals 55 Equivalents of Fractions of Millimeters, and Millimeters, in Decimals of Inches 56-58 Equivalents, Pounds and Kilograms 60, 73 Equivalents, Metric 60, 61, 73 Exact Methods of Manufacture 19, 20, 21 Bridgeport Brass Company Extrusion Process for Manufacturing Tubing 15 Experience Essential to the Proper Practice of the Art of Tubeniaking 11 Fittings, Distinguishing Colors to be Used on 52 Flanges, Distinguishing Colors to be Used for 52 Flow of Water in Circular Pipe per Cubic Foot per Second 6 1 Flanges, Schedule of, Standard and Extra H eavy 50, 5 1 Flanging of Copper Tubes, Regulations Pre- scribed by Board of Supervising Inspectors of Steamboats 53 Formula for Determining Proper Thickness of Copper Pipes 49 Formula for Calculating Collapsing Pressures 49 Frustum, Mensuration of 86 Friction Loss at Different Velocities of Water in Pipes (Chart) 66, 67 Furnaces for Annealing, Special 17 Gauges, Various, Tables Showing Differences 59 Gallons, Conversion Tables 54 German Silver, Sheet-Metal and Manufactured Goods 24 Gilding Tubing, Prices for 35 Guarantee 21, 96 Head in Feet of Water, Corresponding to Pressure in Pounds per Square Inch at 62° F 62 Heat Treatment 17 heptagon. Area, etc., of 75 Hexagon, rules for Finding Area of 75, 87 House Service Pipes, Quantity of Water Dis- charged from 6o identification of Power House Piping, Report of Committee on 52 Inches, Fractions of. Reduced to Decimal Equivalents 55 Inspection, Tubes Stacked for (Illustration) 14 Inspection and test 21 Inscribed Square, Rule for Finding Side of 87 Inspectors of Steam Vessels, Report on the Use of Seamless Brass and Copper Tubes 53, 54 Iron Pipe Sizes, Prices for 22, 37 Iron Pipe Sizes, Regular and Extra Heavy, Weights, Circumference and Transverse Areas of 38 Kilograms, Equivalents in Pounds 73 Bridgeport, Connecticut Laboratories, Chemical, Physical and Meta- lurgical (Illustrations) 19, 20, 21 Lacquering Seamless Tubes, Prices for 39 Lengths, Additional Price for Cutting to Exact... 37 List of a Lew Other Bridgeport Products 24 I>ondon Gauge, Equivalents in Decimals of Inch... 59 Low Brass Tubing, Prices for 35 Manganese Bronze Rods, etc 24 Mannesmann Process for Manufacturing Tubiaig 15 Manufacturing Specialties on Order 24 Mensuration of Cylinders, Comes, etc., Formulas for 86 Methods of Manufacturing "Bridgeport" Seam- less Brass and Copper Tubing 13-21 Metric Equivalemts in English Weights and Ca- pacities and in Inches, Feet, Yards, etc., 60, 61, 73 Millimeters, Fractional Equivalents of 56, 57, 58 Moulding, Special Shapes 24 New British Gauge, in Decimal of Inches 59 Nickel Plating Seamless Tubes, Prices for 39 Nonagon, Area, etc., of 75 Octagon, Rules for Finding Area of 75, 87 Odd Shapes on Special Order 24 Old English Gauge, Equivalents in Decimal of Lich 59 Orders, Data Required for 22 Pentagon, Area, etc., of 75 Phono-Electric Trolley and Telephone Wire 24 Phosphor Bronze Rods, etc ^ 24 Photo-Micrographs (Illustration) 20 Pickling, Annealing and 15, 17 Pipe Ihreading, Briggs' Standard for 48 Polishing Seamless Tubes, Prices for 39 Polygons, Areas of 75 Pounds, Equivalemts in Kilograms 73 Power House Piping, Report of Committee on Identification of 52 Pressure in Pounds per Square Inch for Dif- ferent Heads of Water at Cr2° F 63 Pressure, Internal, Testing Tubes to Withstand 1,000 lbs. (Illustratiom) 17 Prices for Seamless Brass Tubes, Stub's Wire Gauge the Standard 22, 36, 37 Prices for Seamless Brass Tubes, Iron Pipe Sizes 37 B !■ i cl g' e p u 1' t B 1- a s s Co iii p a n y Prices (Xet) for Polishing, Polishing- and Lac- qnering, Polishing and Txickel Plating and Threading Seamless Brass amd Copper Tubes and Pipes 39 Products, List of Some Other of the Bridge- port Brass Co 21 Prompt Execution of Orders, Data Required to Insure 2-2 I^uiip Room, Corner of (Illustration) 2.^' Pure Metals Only 13, 21 Pyramid, Mensuration of 86 Quality of Bridgeport Tubes 11, 17, 21 (Quantity of Water in Cubic Feet per Minute Discharged from House Service Pipes 65 (Quantity of Water Discharged and Friction Loss at Different Velocities of Water in Pipes, Clark's Chart 66, 67 Radius, Rules for Finding 87 Rectangular Tanks, Capacities of, Figured in U. S. Gallons for Each Foot in Depth 72 Report of Committee of Identification of Power House Piping, Revise 1305 52 Rivets, Copper 21 Rods 24 Rods of N'arious Alloys 2i Rolling and Wire Mill and Plant for Manufac- turing, View of 18 Rolling and Wire Mill and Plant for Manufac- turing (Illustration) 18 Rules and Regulations for Use of Seamless Brass and Copper Tubes, as Prescribed by the Board of Supervising Inspectors of Steamboats '. 53, 51 Schedule of Standard Flanges 50 Schedule of Extra Heavy Flanges 51 Seamless Tubes, Other than Round, Prices for 34, 35, 36 Segment of Sphere, Mensuration of 86 Sheet Metal 24 Silicon Bronze Rods, etc 24 Slitting and Twisting Tests (Illustration) 21 Sloping Pipes, Flow of Water in 64 Special Shapes Drawn or Stamped from Brass, Co])per, Bronze or German Silver 24 Specific Gravity of Brass and Copper Tubes 49 Sphere and Segment, Mensuration of 86 Standard Measurements for Threading, Briggs'... 48 Stub's or Birmingham Gauge, in Dec. of Inch 59 B r i d s' e P u 1' t, , Connecticut Square, Area, etc. of 75 Square, to Find Side of Equal or Inscribed 87 Tanks, Capacities of 73 'lenipers, Classification of 23 Tensile Strength of Brass and Copper Tubes 49 Ihreading, Briggs' Standard, Measurements for 48 'i'hickaiess of Copper Tubes, Formula for De- termining 49 Threading Seamless Brass and Copper Tubes and Pipes, Prices for 39 Tinning, Condenser Tubes, Prices for 36 Transverse Areas of Seamless Brass and Cop- per Tubing, Iron Pipe Sizes 33 Triangle, Area, etc., of 75 Tubing, Seamless, Prices for 22, 34-37 Tube Mill, View of Exterior 10, 13, 16 Tube Mill, View of Interior 12, 14 Tubing, Seamless Brass and Copper, Methods of Manufacture 13 Undecagon, Area, etc., of 75 Umited States Legal Standard Gauge for Sheet Iron and Steel 59 \"alves, Distinguishimg Colors to be Used on 52 VV'ashburn & Moen Gauge, in Decimals of Inch... 59 Water Conversion Factors 54 Water, Head in Feet of. Corresponding to Presstires in Pounds 62 Water, Sloping, Flow of in Circular Pipes, per Cubic Foot per Second 64 Water, in House Service Pipes, Quantity Dis- charged 65 Water, Quantity Discharged and Friction Loss, Clark's Chart 66-67 Water, Head in Feet of, Corresponding to Pressures in Pounds 62 Wedge, Mensuration of 86 Weight per Foot of Bridgeport Seamless Brass Tubes, Stub's Gauge 36-29 Weight per Foot of Seamless Brass Tubes, American or B. & S. Gauge 30-33 Weight per Foot of Bridgeport Seamless Cop- per Tubes, Stub's Gauge 40-43 Weight per Foot of Seamless Copper Tubes, American or B. & S. Gauge 44-47 Wire, Phono-Electric, Trolley and Telephone 24 ^0 Bridge i) o r t Brass C o m p a n 10 1 1 Bridgeport Connecticut 11 Bridgeport Brass Company Factor}- in 1865 [Reprint from an Old Wood Cut] THE Bridgeport Brass Company is one of the pioneer makers of Seamless Tubing in this Country, having been actively identified w^ith the industry for over thirty years. To an unusual extent the processes employed in the manu- facture of this product demand for their successful execution a quality of know^ledge obtainable only as the result of a long period of accumulated practice. While we have for years devoted time and money to the scientific study of the natural laws and princi- ples underlying the art of tube making, it is through long and wide experience that we have learned the proper practice of the art itself. This experience is of especial value in enabling us to satisfactorily meet the great variety of requirements encountered in the many uses to which tubes are put. It is with entire confidence, therefore, that we solicit your orders for Copper and Copper Alloy Seam- less Tubing for any and all purposes, including those for which exceptional conditions call for unusual qualities. We are equipped to give our customers all the assistance which a perfect plant and a mastery of the science and technic of tube making can supply. ] 2 B !• i d g- e p () r t Brass C o m v a ii y 12 13 B r i d g- e p o r t , Connecticut 13 il '^'VHHH Additions to Tube Mill, Under Construction Methods of Manufacturing "Bridgeport" Seamless Brass and Copper Tubing Pure metals are prime factors in making perfect seamless Tubing. We use pure metals only, which is one reason for the high quality of the "Bridgeport" product. We have our own testing laboratories to safeguard this quality. As we work in strict accord with in- variable formulas and methods, the use of pure metals assures for us the greatest economy and expedition in manufacturing. There are four principle methods for making Seamless Tubes of copper or copper alloys: 1. The Cupping Process 2. The Extrusion Process 3. The Mannesmann Process 4. The Cast Shell Process Tlie Cupping Process By this method, a flat casting is first made and this is rolled down to a sheet of required thickness. Out of this sheet, a circular blank is stamped. The blank is then "cupped up" on a press. By successive cold drawings over steel arbors and through hardened steel dies, each reducing the diameter and thickness of the tube, the required size and gauge is finally reached. The cupping process is used for 14 B 1- i d g e p o !• t Brass Company 14 15 Bridgeport, Connecticut 15 A n n n u- making tubes of very large diameter and of comipar- atively short lengths. It is used also for making tubes of very thin gauge and small diameter. The Extrusion Process A cylindrical billet is cast. This is heated to a plastic temperature and by hydraulic pressure forced out through a die, over a steel mandrel. The tube thus formed is then cold drawn, over steel triblets or arbors and through hardened steel dies. The Mannesmann Process This process was named for Reinhard Mannesmann, a German engineer, who accidentally discovered that the cross-rolling of a heated round bar produced a rupture through its center with a tendency to form a hole along the longitudinal axis. This process, and modifications of it, have been used largely in the manufacture of brass and copper tubing; but its use is limited to certain mixtures which can be worked hot. After being rolled on the Mannesmann machine the tube must be pointed and cold drawn to required size. The Cast Shell Process A cylindrical shell of suitable length is cast in an iron mould over a core. It is then annealed, pickled and cold drawn. By this method Tubes can be made from practically all ductile alloys. 16 Bridge ]) o v t B i- ass Co m i > a n 16 i d it. C u n n e c t i e 11 t 17 Annealing and Pickling Every Bridgeport Seamless Drawn tube is cold drawn from six to eighteen times depending upon the guage. Between each drawing, it is necessary to anneal and pickle the tubes. For these operations which require extreme care, we have special equip- ments that have been developed as a result of pro- longed experiments. Special Heat Treatment There are certain requirements, such as those occurring in the use of tubes for surface condensers, for which, in order to assure the most satisfactory service, we include in our process of manufacture a special method of heat treatment. The furnaces for this purpose are of our own construction and permit an accurate measurement and control of temperature. We have given this subject very careful study and with our special equipment have been able to attain for Bridgeport Tubes a Service Quality unequalled by tubes made by processes ordinarily considered standard. One important result of this special treatment is that Bridgeport Seamless Tubes are less susceptible to dezin- cification than those manufactured by other methods. Jl_-'. _ li- ■■■.i^'^Pik' IB j i ^^m ^ i Every Tube tested toW'ithstaiul lUUU lbs. Internal Water Pressure IS B r i a g- e p u r t Brass C o m i) a n y 1 8 1 9 li r i d .ti,' e p o r 1 . C o n n e c t i e u t 19 Exact Methods of Manufacture The aim, in the industrial world to-day, is to stand- ardize products and to eliminate guess-work in all manufacturing processes. Not so very long ago the brass expert determined the composition of a copper alloy by scraping it with a tool and noting color and hardness. And he guided his mixing, casting, drawing, annealing and other operations by equally uncertain " rule of thumb " methods. The modern way — the way of the Bridgeport Brass Company — is to do everything by exact methods, in accord with the hiehest efficiency ideals. Everything Done by Exact Methods 2 B 1- i d g- e ]) o r t P. r a s s C o m i> a n >• 2 Melting Small Charges of M e t a The Company maintains fully equipped chemical, physical and metallurgical laboratories. Every lot of crude metal is tested before it goes to the melting pot. Every alloy is pre-determined by analysis and exhaust- ively tested for its purpose. Once determined upon, the standard never varies. The laboratory is equipped with electrical furnaces for melting small charges of metal. By means of these little furnaces castings are made as successfully as when the large crucibles are used. These sample castmgs are annealed in a laboratory muffle, and their physical characteristics are then revealed by the testing machine, the scleroscope and by photo-micrographs. Making Photo-Micrograph 21 Bridgeport, Connecticut 21 I n the Physica Laboratory Thus in all cases where tubing or other Copper Alloy products are to be made for special purposes, the ideals are attained in the laboratory and are then systematically worked out in the various departments. Guarantee By the use of pure metals for all alloys, by exact methods for controlling every operation of manufac- ture and by the final safeguard of systematic inspec- tions and tests, an unexcelled standard is maintained for "Bridgeport" Seamless Tubing. The Company will cheerfully replace any stock proving defective. »>^ fill ■^"/^'m M w.m^^^ f i i^^^m\ L ^ fjm ^^myim \ 1 Ty ^^^!l^P»flP*^Pk^w*SRt^P*!Wi^^ it" ■^ Samples Tested b) Slittin n d 1^ sting 22 Bridg-eport Brass Company 22 FS-Hr' t5k^ '■■^rtVW liis^*i-.-_ — ■ ' \^mm ^H^-^- ' Data Required to Insure the Prompt Execution of Orders We shall always be able to fill your orders promptly and satisfactorly if you will tell us exactly what is wanted — especially as to the following particulars: 1. Purpose: As Seamless Tube is used for a great variety of purposes and under widely varying con- ditions, which can best be met by particular combina- tions of mixture and treatment, it is essential that we should know exactly for what purpose any lot of tubing is to be used, whether for Condensers, Evaporators, Plumbing work, Bearings or for other purposes. 2. Material : Always state the kind of tubing re- quired; Brass, Bronze, Copper or Admiralty Mixture. 3. Diameter: Specify inside or outside diameter. When either is important, specify diameter in the decimal parts of inch, as ascertained by micrometer calipers. When ordering tubes which are intended to sleeve together theSmaller Tube should be ordered to the out- side diameter with instructions "to be sliding fit into the sleeve" and the Sleeve or Larger Tube should be ordered to inside diameter with instructions" to slide over the tube." Samples should be sent if possible. 4. Gauge : As the greater part of our stock regu- larly kept on hand is in Stubb's Gauge, more prompt delivery can be made if tubing is so ordered. See Pages 26 to 29 for tables showing sizes and weights. 5. Iron Pipe Sizes : When ordering Iron Pipe Sizes, state if ordinary or extra heavy tubing is required. (See Pages 37, 38.) 23 Bridgeport Connecticut 28 6. Length: Quicker delivery can always be made of regular mill lengths, than of tubes cut to specific lengths, because a much larger stock is available. Unless otherwise ordered the mill lengths will be sent. 7. Temper : The following classifications of Tempers are sufficient for ordinary purposes: — Brass Hard : For purposes where the utmost stiffness and rigidity are required. Half-Hard : For purposes requiring a certain de- gree of stiffness with quality to withstand moderate distortion or change of shape. This temper is obtain- ed by a medium amount of drawing from the soft condition. Semi- Annealed : For purposes requiring an an- nealed tube with a maximum degree of stiffness. This temper is obtained by partially annealing a hard tube. Soft : For purposes requiring bending, flanging or other distortion. Copper Hard : This is the usual temper for copper tubes. It is not suitable for tubes that are to be bent. Half -Hard: Sometimes furnished on receipt of specific information as to use. Annealed or Soft: For uses where much bend- ing or distortion is required. J iW^^II a-QMiSF: ¥ Efijn*' 1^'" i^iiiiiiiiiiMiiii ^m^ IP Corner of E t Room, Showing Various Apparatus 24 Bridgeport Brass Company 24 The following are a few "Bridgeport'' Products: Seamless Brass and Copper Tubing for all pur- poses, including Seamless Condenser Tubing in Brass and Admirality Mixtures, plain and tinned. Automobile Wind Shields and Step Mouldings and other odd shapes for special purposes. Brass and Copper Rods, Round, Square, or Rectangular. Rods in *' Bridgeport" Bronze, Manganese Bronze, Aluminum Bronze, Phosphor Bronze, Silicon Bronze. Brass, Copper and German Silver in sheets. 'Thono-Electric" Trolley and Telephone Wire. Miscellaneous Manufactured Goods, in Brass, Copper, Bronze and German Silver; also Copper Rivets and Brass Lamps, Bicycle Lanterns, etc. We are particularly fitted, by Experience and Equipment, to produce Drawn, Stamped and Special Shapes from Brass, Copper, Bronze and German Silver in Sheet, Tube, Rod and Wire. We make the article from the ingot to the finished product. Send us Specifications, Blue Print or Sample of your w^ork and we will promptly send esti- mate of price. Bridgeport Brass Company Bridgeport, Connecticut, U. S. A. New York Office : 253 Broadvs^ay, Cor. Murray St. D ata and r rices Pri for Architects Engineers Superintendents and all Users of Seamless Tubing [See Index Pages 4 to 9] 26 B r i d g e p r t Brass C m p a n y 2 TABLE SHOWING WEIGHT PER FOOT OF Stub's or Birmingham Gauge, Gauge No. 3 4 5 6 7 8 9 10 11 12 13 14 Thickness of each No. in decimal parts •259 .238 .220 .203 .180 .165 .148 134 .120 .109 .095 .083 1 clinch: III Frac. of inch corresponding 1 15 1 3 3 11 9 1 closely to T 6¥ 64 16 64 64 8 3¥ 6T Gauge Nos.: Diameter Tubes, Inches 1 1 .18 .170 .16. ....j .27I .256 ; .40 1 ' ^1 --'- .28, •4i3| -376 •St •492! -4441 -40 1 .70 .66 .64 •60 .57, -53 16" 1 .84 •79 .76 •71 .66j .61 .571 .513; .46 i 1. 09 1.06 1-03 1 •99 .92 .88 .8i .76 .70 .649 .581J .52 u 1.28 1.23 1. 19 1 [.13^1.05 •99 .92 .86 .79 .7281 .650' .58 k 1.47 1. 41 1-35 , [.281.18 I. II 1.03 •95 .87 .807 .718 .64 j^ 1.65 X.58 1.50 c.43'1.31 1.23I1.131.05 .96 .8851 .787 .70 .^ 1.84 1-75 1.66 t.57Ji.44^i^35 ^•24i.iS I-04 .964 •8551 .75 i^ 2.03 1.92 1.82 '•72Ji.57,i-47 1-35 1.24 1.13 i^o42 .924 .81 1 2.22 2.09 1.98 ' c. 87 1.70 1.59 1.45 1.34 1.22 1. 12 .99 -88 iH 2.60 2.44 2.30 '. s.i6,i.96|i.83 1.67 1.53 1.39 1.28 1 1.13 j I. 00 ij^ 2.97 2.78 2.452.2212.071.881.731.56 1.44' 1.27 1. 12 iH 3-35 3- 2.93 2.75 2.48 2.30 2.101.92 1.74 1^59 I 40 1.24 i^ 3-72 3-47 3.25 L }.o4 2.74 2.54'2.3i|2.ii 1.91 1.75 1^54 1.36 iKs 4.09 3.8X 3-57 !: 5. 33|3.oo|2, 78,2. 52;2. 312.081 1. 91 1.68 1.48 iK 4-47 4-iS ! 3-88 ,: $.62 3.26 3.02 2.742.502.26 2.06 1.82 1.60 1% 4.84 4-50 4.20 : J.Q2 352 3.26 2.95 2.69 2.43^ 2.22 1^95 1.72 2 5-21 4.84 4.52 \ J. 21 3^78 3. 50*3. 16 2.89 2.60; 2.38 2.09 1.84 2/8 5-59 5.18 4.84 ^ \-5o 4.04 3.73 3.38|3-o8 2.78 2.54 2.23 i.9e 2K 5-96 5-53 5-iS ^ j.8o 4^30 3.9713.593.272.95 2.69 2.36 2.0S 2% 6.34 5-87 5-47 . )-o9 4-56;4-2i 3^80^3.47 3-12 2.85 2.50 2.2c 2j^ 6.71 6.21 5-79 - •38 4.8214.45 4-023.66^3.30 3.01 2.64 2.32 2^8 7.08 6.56 6.11 ! .67 5.08-4.69 4-23|3-85;3-47 3.17 2.77 2.44 2^ 7-46 6.90 6.42 . •97 5^344^92 4^44 4^05 3.64 3.32 2.91 2.5t 2^8 ... 7-83 7.24 6.74 ( 5.26 5.60 5.16 4.66 4.24 3.81 3.48 3^05 2.6B 3 8.20 7-59 7.06 ( )-55 5.865.40 4^87 4^43 3.99 3.64 3-19 2.79 3/8 8.58 7-93 7-38 i •85 6.125.645.08 4^63 4.16 3.79 3^32 2.91 SJ^ 8-95 8.27 7.69 , .14 6.385.885.30 4.82 4.33 3-95 3.46 3.03 3% 9-33 8.62 8.01 7 •43 6. 646. II 5.51 5.01 4.51 4. II 3.60 3.15 3/2 9.70 8.96 8.33 7 .72 6.906.35 5.72 5.21 4.68 4.27 3.73 3.27 3H 10.07 9-30 8.65 8 .02 7.16 6.59 5.94 5.40 4.85 4.42 3.87 3-39 3% 10.45 9-65 8.96 i •31 7.42 6.83 6.15 5.59 5.03 4^58 4.01 3.51 3% 10.82 9.99 9.28 E .60 7.68 7.07 6.37 5-79 5.20 4-74 4.15 3.63 To determine m)eiqht per foot of a. tube of a Qi%.... 19.42 17.89 16.58 15-34 13-65 12.54 11.28 10.23 9.18 8-35 6%.... 19.79 18.23 16.90 15.63 13-91 12.78 11-49 10.43 9-35 8.51 7 .... 20.16 18.57 17.21 15-92 14.17 13.02 11.70 10.62 9-53 8.67 7/8.... 20.54 18.92 17-53 16.22 14-43 13-26 11.92 10.81 9.70 8.83 7J^.... 20.91 19.26 17-85 16.51 14.69 13-50 12.13 11.01 9.87 8.98 7%.... 21.29 19.60 18.17 16.80 14-95 13-73 12.34 11.20 10.05 9-14 7%.... 21.66 19-95 18.48 17.10 15-21 13-97 12.56 11-39 10.22 9.30 7^8.... 22.03 20.29 18.80 17-39 15-47 14.21 12.77 11-59 10.39 9-45 7?i-... 22.41 20.64 19.12 17.68 15-73 14.45 12.98 11.78 10.57 9.61 7^8. ••• 22.78 20.98 19.44 17.98 15-99 14.69 13.20 11.97 10.74 9-77 8 .... 23^i5 21.32 19-75 18.27 16.25 14.93 13-41 12.17 10.91 9-93 To determin e %■■■■ 17.82 15.94 14.26 12.74 11-38 10.17 9.06 8.10 7.23 6.45 6H.... 18.19 16.27 14.55 13.00 11.62 10.37 9.26 8.27 7-38 6.58 6^.... 18.56 16.60 14.84 13.27 11.85 10.58 9.45 8.43 7-52 6.71 6^8.. •■ 18.94 16.93 15.14 13.53 12.09 10.79 9.63 8.60 7.67 6.84 6^.... 19.31 17.27 15.43 13.79 12.32 11.00 9.82 8-77 7.82 6-97 6^8. ••• 19.68 17.60 15.73 14.05 12.55 11.21 10.00 8-93 7.96 7.10 7 .... 20.05 17.93 16.02 14.32 12.79 II. 41 10.19 9.10 8.11 7-23 7'/8.... 20.42 18.26 16.32 14.58 13.02 11.62 10.38 9.26 8.26 7-36 7^.... 20.79 18.59 16.61 14.84 13.25 11.83 10.56 9-43 8.41 7.50 7%.... 21.17 18.92 16.91 15. 10 13-49 12.04 10.75 9-59 8.55 7.63 7^.... 21.54 19.25 17.20 15-37 13.72 12.25 10.93 9.76 8.70 7.76 7>/8.... 21.91 19.58 17.50 15.63 13.96 12.45 II. 12 9.92 8.8s 7.89 7>i.... 22.28 19.91 17.79 15.89 14.19 12.66 11.30 10.09 8.99 8.02 7/3.... 22.65 20.24 18.09 16.15 14.42 12.87 11.49 10.25 9.14 8.15 8 .... 23.03 20.58 18.38 16.42 14.66 13.08 11.67 10.42 9.29 8.28 To determine i-... 5%.--. 6 .... 6/8.... ey,.... en.... 6^.... 6^8.... 6%.... 6%.... 7 7% 75^-. •• 7%..-. 7^.... 7^8.... 7^.... 7%.-.. 3.66 3-77 3-89 4.01 4.12 4.24 4-36 4-47 4-59 4-7 4.82 4-94 5.06 "17 29 41 52 64 76 87 99 13 .26 •37 •47 •58 .68 3-78 14 6.46 57 69 80 6.Q2 7.04 7-15 7.27 39 2.91 3-OI 3.10 .19 .28 •38 •47 •56 •65 ■75 15 16 2 . 60 2 . 32 3 3-93 4.02 4- 4- 30 39 49 58 67 76 4.86 95 04 13 23 32 41 50 60 69 78 5.87 2.39 2.46 2.54 2.61 2.68 2.76 2.83 2.90 2. 3- 3- 3- 17 20 27 34 3-42 49 57 64 71 78 85 93 01 4.08 2.06 4 2.20 26 32 39 2.46 2.52 2.59 2.66 2.72 2.78 2.85 2.9 2.91 3-04 3-1 18 19 1.90 1.96 2.0 2.07 13 19 2.25 2.31 2.36 2.42 2.48 2-54 2.60 2.65 2.71 2.77 1.64 1.69 1.74 1.80 1.85 1.90 1-95 2.00 2.05 2. II 2.16 2.21 A 21 22 1. 16 23 ^ameter, add to Ipetghts in ab r^ S § g 2 S ;5 g :::::: : to 5 §g VO CO ■* ^ pq CM c*^ 1 1^ T-lfJ 5§g ^ CO ■* C5 ^ pq PJ CO Additional Prices for Admiralty, Low Brass, Copper, Bronze and G quoted upon request. For all Seamless Tubes of any shape other than round, add to the price of regular Round Tubes, of corresponding size, per pound tional, $0.05. : ^ ^ & g ■«• ON C CO vO 5 § g •* ON CO r.< ^ -H pq pq CO •;::::: -cH" 10 §S § g ^ 2 ^ S « I ■ : : : : :::::: lo' S^ § g r: 2 ^ S S ;;:::: : : : : : : S §5 § g 2 ^ S K5 ;5 : : : : : ' ' ■ : : : : 10 S§^ § g r-» CM ■»»• .-1 CO • . . . * ' ' : : : : : S S S s t^ rt pq •* _( CO -H rH ^ pq ^3 : : : : : li to. 120 109 095 00 c^^mooc^rJlOcsoomc^o r-^vOin-^Tj-corooicNcscs 00000000000 iUi oS:J2 M- u:)vOt^oooNO'-c^co^io tfcSa -^ -+ 36 Bridgeport Brass Company 36 == — — »i^ fN -^ lo — ^ c« o o o o o 1 1 3 .S ^ § § o o : : : 1 (2i u s >. rt ^ I 1 *i c I ■ 1 Q ^ ;^ o o o 1. .a U 03 ti * -5*< Tj< NO vo s tt C9 ;^ o q q q q ^ -5 ■ J3 C I- 0^ cs 73 f : 5 C 3 O 0) u c vo 00 o 1 J3 ^ o e ^ o q q "o T C 3 -« " ' 1 Plh e o US T 2 s ^ ' c I St OS 8 •o < o C o 00 o 3 1 a \ -e M ^ 3 jj CD h 1 8 3 ^ C 3 *C 1 C 1 3 C 3 C 3 8 Q h y^ S'n ci V ^ h E- * H « 1^ 00 OS o b 1 4 U 1 * u < 3 c3 « > 1 % ^ W o ^,= fa (I H fa d ^ 37 Bridgeport, Connecticut 37 c ^ 00 c § t^ c t^ vO c 10 c ■>«■ "" ^ c •— r^ c ^ O. CO S -i I W II ^ i ^2 1 O O M 'M 05 = ^^2;:^S§^^^§g?g| i^o^ooooooeoosi-o^oooo CJOcO'tO'^'OCO^OiOOOO (N'-HO(N"*iCC0OX'0O'*C0 ^^^;^2gg!jgg§|i II 1 050. coiooo^ococ^i03-*t^'-ioeo T-H r-( (N CO M iC 00 m re 2 ssaujioiqx OC0I>05t^lMTt^ ^" i.'^ rH '-M X C CO '^ -^ -< L't^TfT.fCOOOOOS^OO'^CO-^OOXOO-t* OC^)C005XXt^Tt— t iM'^oo:iMt^'Occxioxcot^i<-rc- i-Hi-KNCOT^iOOOONCOOXr^ r 13 CC'-Hd-*COt^O'NC3XiO'*COCOXOC5 c --( 1-H c-i CO ■* CD X iM 05 ro t^ — 1 C "-f^ III i-it-iC^C^C0COTtOiC;q|CCOO OmX-^CDX-^iOOC^^CCTtiiCCOCN^ M C^l "O i-O w! lO CO CO Oi C^J CD C CO 1^ .-^C^CO'OXCO'^X-f'^CD'OOJOCO-^O T-KNIN-^OOlCOiOOSTt^-^LO 1-H f-H T-H C^ CO "^ C 1^ CO X oq -t C<1 CD X t^ X ■* CD CD t^ CO (N CD Xt^>O:DXC0O5C^Jt^'-O(MC;CDC0C^X X " l-t C5 ut! CO !M Tj< X CD 05 IC r-c 05 C<1 r-H Or-i,-.CTiO(N-0(M(MXQiMOC^OOOC^l'OC^t i-('-l.-HN(NC0COTtiimn-ter 1.08, Inches. 1 !•••• .048 .047 -045 .042 -038 .036 -033 .030^.027 .025 .023 .021 1 ^> .101 .097 .091 .082 •073 •065 .060 054 .049 .044 .0411.037 •C34I i .155-146 -135 .120 .106 .091 .084 076 .068 .061 .056. 050 ■045! ^\ .210 .IQ5 .178 .156 .138 .118 .109 097 .087 .078 .070 .064 .058 .265 .245-223 -193 .169 .144 •133 118 .106 .094 .086 .078 .069 tV .319 .293 .267 -231 .202 .171 •157 139 .125 .HI .101 .091 .082 ^ -374 -342 -3" .268 • 233 .197 .182 160 .144 .127 .X17 .105 •093 fV .428 .392 •355 .304 -265 .224 .206 182 • 163 .144 •131 .119 .106 t -483-441 -399 •342 -297 .250 .230 203 .182 .161 .147 .132 .iisl H •537 -490 •442 •379 •329 .277 -254 224 .201 .177 .162 .146 .130 1 .591 .540 .486 .416 .360 -303 .278 245 .219 . 194! • 177 .160 • 143 1* .646 .589 •530 •454 -392 -330 • 302 266 .238 .2111. 192;. 173 .155 ^ .700.638 •574 .490 -424 -356 •327 288 .2571.228 .207 .187 .167 It .755 -688 .6i8 •527 • 456 .383 .351 309 .276j.2441.222 .201 .z8o I .81 •73 .66 •57 .48 .408 •376 330 .295,. 260''. 237,. 214 .191 iKs .91 •83 •75 .64 •55 .461 .424 372 •333; •294- 268'. 241 .215 iJ< 1.03 .93 •84 •71 .62 • 514 .472 415 -3721 -328;. 298J. 269 •239 1% 1.13 1.03 .92 •79 .68 .567 .521 457 .409 .360 .329 .296 .264 iJ^ 1.251.131-01 .86 •75 .621 .569 500 -447j-394|-359 -323 .288 ifi i.35ji-23^i-io .93 .81 .673 .617 542 -4851-427 -390!. 351 .... 1% 1.46 1.32 1. 19 1. 01 •87 -727 .667 584 .523J.461 .419 -378 x% 1.57 i-43,i-28 1.08 ■93 • 779 •715 627 •56i|-493,-449 -405 2 i.68'i.52|i.36i.i5 1. 00 -833 -763 669 •5981 -5271 -480|. 433 .... sH 1.80 1.63 1.45 1.23 1.06 .885 .812 712 .6361.561 .51O1 .... aJi 1.90 1.72 1.54 1.30 1. 12 •939 .860 754 -674 -594i-54ii---- .... 2% 2.oi|i.82li.63i.39 1. 19 .991 .909 796 .712 .627 .571 .... .... 2% 2.12 1.92 1.711.46 1.25 1.045 .958 839 .750 .660 .602L.. .... 2^8 2.23'2.02 I.81 1.53 I •31 1.097 1.006 881 .787 .694 .... 2K 2.34'2.ii 1.89 I. 61 1.38 1. 151 1.054 924 -825J.728 .... 2% 2.45'2.22 1.98 1.68 1.44 1.203 1. 100 966 .863'. 760 3 2.552.312.07^1.75 1.50 1^257 1. 151 008 .902 .794 .... 3/8 2.672.422.I5II.83 1.56 1.309 1.200 051 .940 .827 35^ 2.77 2.512.25 1.90 1.63 1-363 1.248 093 .978 .861 .... 3^/8 2.88 2.60 2.33 1.97 1.70 1-415 1-297 136 1-015 .894 .... 3K2 2-99 2.71 2.41 2.05 1.76 1.469 1-345 178 I •OSS .927 3^8 3.10 2.80 2.51 2.12 1.83 1. 521 1-393 220 1. 091 .961 .... 3K 3.21 2.90 2.59 2.1Q 1.89 1-575 1.442 263 1. 129 •993 .... 3^8 3-32 3.00 2.69 2.27 1^95 1.627 1.491 305 1. 167 1.027 .... Z>fame^e % add to Tveights i gauge numbers. 'n aho've list the ^weights gi'ven 5pon(/rn^ jauge No. 15 16 17 18 19 20 21 22 23 24 25 26 27 Increase in bs. per foot: .1257 .1024 .0816 .0582 .0427 .0297 .0248 .0190 .0151 .9118 .0097 .0079 d 42 Bridg-eport Brass Company TABLE SHOWING WEIGHT PER FOOT OF Stub's or Birminghnm Gauge, Gauge No. Thickneas of each No. in decimal parts of inch : Frac. of inch, corresponding closely to Gauge No. : Diameter Tubes, Inches 4K- 4^8. 4^. 4^8. 4K. 4^8. 5 . 5'A. sn. 5H. 5H. SVs- 6 . 6/8. ^K. 6/8. 6%. Wz. 6K. 6^8. 7 . 7/8. 7J^. 7^8. iVz. lYz- iYa- 7%. 11-75 12.15 12-54 12.94 13.32 13-71 14. II 14.50 14 15-29 15 16.08 16.46 16.85 17-25 17.64 18.03 18.43 18.82 19.21 19.60 19.99 20.39 20.78 21.17 21-57 21.96 22.35 22.74 23-13 23-53 23.92 24.32 .238 10.85 II. 21 11-57 "-93 12.30 12.65 13.01 13-38 13-73 14.09 14.46 14.82 15-17 15-54 15.90 16.25 16.62 16.98 17-33 17.70 18.06 18.42 18.78 19.14 19.50 19.87 20.22 20.58 20.95 21.30 21.67 22.03 22.39 9-34 9-65 9-95 10.26 10.57 10.88 11.50 11.80 12. II 12.41 12-73 13-03 13-33 13-65 13-95 14.26 14-56 14.88 15-18 15-49 15-80 16.11 16.41 16.72 17-03 17-33 17-64 17-95 18.26 i3 56 8-34 8.61 8.88 9.16 9-43 9.70 9-97 10.25 10.52 10.79 11.06 11-33 11.60 11.88 12.15 12.42 12.69 12.97 13-24 13-51 13-79 14.06 14-33 14.60 14.88 15-15 15-42 15-70 15-97 16.24 16.52 16.79 17.06 7.68 7.92 8.17 8.42 8.67 8.92 9.17 9-42 9-67 9-9 10.17 10.42 10.67 10.92 II. 17 11.42 11.68 11.92 12.17 12.42 12.67 12.92 13-17 13-42 13.67 13.92 14-17 14.42 14-67 14.92 15-17 15-42 15-6S 6.9 7-13 7-36 7-58 8.03 8.25 8.47 8.70 8.92 9-15 9-38 9.60 Q.82 10.05 10.27 10.49 10.72 10.94 11.17 11-39 11.61 11.84 12.06 12.28 12.52 12.74 12.96 13-19 13-41 13-63 13-86 14.08 10 6.28 6.48 6.69 6.89 7.09 8.52 8.71 8.91 9.12 9-32 9-52 9-73 9-93 10.13 10.34 10.54 10.74 10.95 II. 15 11-35 11-56 11.76 11.96 12.17 12.37 12.57 12.78 11 5-64 5-83 6.01 6.18 6.36 6.55 6-73 6.91 7.10 7.28 7.46 7-64 7.82 8.00 8.19 8.37 8.55 8-74 8.91 9.09 9.28 9.46 9.64 9. 82 lO.OI 10.18 10.36 10.55 10.73 10.91 :.46 12 5-13 5-30 5-47 5-64 5.80 5-96 6.13 6.30 6.46 6.63 6.79 6.95 7.12 7.29 7-45 7.62 7-78 7-95 8. II 8.27 8.44 8.61 8.77 8.93 9.10 9.27 9-43 9.60 9.76 9.92 10.09 10.26 10.43 To determine eights in ahcyve list the ^cveights gi'ven sponding gauge numbers. 1 Gauge No. 13 14 15 16 17 18 19 20 21 22 23 24 Increase in lbs. per foot : .2188 1669 .1257 .1024 .0816 .0582]. 0427 .0297 .0248 .0190 ,0151 .0118 44 B r 1 dge P r t Brass Com pan y 44 TABLE SHOWING WEIGHT PER FOOT OF American or B. & S. Gauge. Gauge No. 2 3 4 5 6 7 8 9 10 11 12 13 Thickness of „ ^ „ m « « ?2 s " g V. z 5 g decimal parts S V. 1 CO s ^ s a r- of inch : Frac. of inch. corresponding ^ 1 5 1 3 R 1 1 1 7 3_ 5 closely to 6? 6T 10 c.T 64 8 64 3^ 6¥ Gauge Nos.: Diameter Tabes, Inches. I * ^1^ tR? •175 •24 .17 .16 I "6 1 ••• .40 .51 .62 .38 18 .36 .28 .26 tV .38 .35 •33 ?.... .. .70 .60 .58 .53 •49 .45 .41 .38 ^% 81 •79 .91 .73 .84 6.7 6? . ^1 .51 •47 .43 I-... 1. t4 1. 10 I 04 .98 .78 .70 :e\ •59 •54 .48 ¥•••• 1.34 1.27 I 20 I. II 1.03 .94 87 .80 •72 .66 .60 •54 I.... 1.53 1.45 I 35 1.25 1. 15 1.06 •97 .88 .80 .72 •65 •59 if.... 1.73 1.63 I 50 1.39 1.2S 1. 17 1.06 •97 .87 •79 .71 .64 1-.. 1.93 1.80 I 66 1.52 1.40 I. =8 1. 17 1.05 .96 .86 •78 .70 if.... 2.12 1.96 I 82 1.67 1.52 1.39 1.26 1. 14 1.03 •93 .84 .76 I 2.32 2.14 I 97 1. 81 1.65 1.49 1.35 1.23 I. II 1.00 .90 .81 iVs.... 2.71 2-49 2 28 2.08 1.89 1. 71 i.:5 1.40 1.26 I-I3 1.02 .91 iV,.... 3.10 2.83 2 59 2-35 2.13 1.93 1.74 1-57 1.42 1.27 1. 14 1.03 xYs.... 3-49 3.18 2 90 2.62'2.38J2.15 1.94J1.74J1.57 1. 41 1.27 1.13 zV,.... 3.87 3-53 3 20 2.91 2.622.37 2.13 1.92 1.72 1.54 1.39 1-15 IK-..- 4.27 3-87 3 52 3.182.88 2.58 2.33 2.09 1.88 1.69 1. 51 1-35 IK... 4.66 4-23 3 82 3-453.12 2.80 2.52 2.27 2.04 1.83 1.64 1.46 1^8... 5.05 4.58 4 14 3.7313.36 3.02 2.82 2.45 2.18 1.96 1-75 1^57 2 ... 5-44 4.92 4 44 4-01 3.61 3.24 2.91 2.61 2.34 2.10 1.88 1.68 2^8... 5.83 5-27 4 76 4.28 3.85 3.46 3." 2.79 2.50 2.24 2.01 1.80 2^... 6.22 5.62 5 06 4.56 4.09 3-69 3.31 2.96 2.66 2.37 2.12 1.90 23/3... 6.61 5.96 5 38 4.83 4-35 3.90 3.50 3.14 2.80 2.51 2.25 2.01 25^... 7.00 6.31 5 68 5. II 4.59 4.12 3.70 3.32 2.96 2.65 2.37 2.12 2^8... 7-39 6.66 6 00 5.3914.84 4.34 3.88 3-49 3.12 2.78 e.49 2.23 2K-.. 7.78 7.00 6 30 5.66I5.08 4.56 4.08 3.65 3.27 2.92 2.61 2.33 2%... 8.17 7-35 6 61 5.93 5.32 4.78 4.27 3.83 3.42 3.06 2.74 2.45 3 ... 8.57 7-71 6 92 6.22 5.58 4.99 4.47 4.00 3.58 3.20 2.86 2^55 3^8... 8.96 8.0s 7 23 6.49 5.82 5.21 4.66 4.18 3.73 3-34 2.98 2.67 3^... 9-34 8.40 7 54 6.76 6.06 5.43 4.86 4-35 3-88 3.48 3." 2.77 3%... 9-73 8.75 7 85 7.03 6.31 5.65 5.05 4.52 4.04 3.61 3.22 2.88 sJ^... 10.12 9.09 8 16 7.326.55 5.87 5.25 4.69 4.20 3.75 3-35 2.99 3H-- 10.51 9.44 8 47 7.59'6.8o 6.08 5.444.87 4-35 3.88 3.48 3.10 sH- 10.91 9-79 8 78 7-8617.05 6.30 5.64 5.04 4.50 4.02 3-59 3.21 3^8... 11.30 10.13 9 08 8.1417.29 6.52 5.835.22 4.66 4.16 3.72 3.32 To c/e termine Tvetght per foot of a. tube of a. gfh beto^ unc en In side ier CO rre- Gauge No. 2 3 1 4 1 5 6 7 1 8 9 10 11 12 13 1 Increase in 1 IP Ita. per foot 1.609 1.274 1 1.0119 .mi4 .6364 .5046 1-4001 .3174 |. 2517 I .1996 ■ 1582 .1255 5 Bridgeport, Connecticut 45 -BRIDGEPORT" SEAMLESS COPPER TUBES f Measured in Outside Diameters III 3auge No. 14 15 16 17 18 19 20 21 23 23 24 25 26 Thickness of each No. In lecimal parts of inch : i i 1 i. s i. i 1 t- 1 1 3 ^rac. of inch, ~ Di-responciing closely to tV .... eV sV ^V lau?e No3. : Diameter ubes, Inches. t:. .... .047 •045 .043 .041 •039 .036 •034 .029 .028 •025 .023 .02X .094 .090 .084 •073 .071 .065 .06 .056 .049 •045 .040 •037 •034 i.... •IS •14 •13 •115 .10 .092 .084 .08 .068 .062 .056 .050 •04S tV... .19 .18 .16 •15 .14 .12 .11 .10 .088 .08 .070 .064 •057 > I.... •2t .22 .20 .18 .16 • 15 • 13 .12 .107 .097 .086 .078 .069 ;' T6---- .29 .26 •24 .21 .19 .18 .16 .14 .127 •113 .101 .091 .081 : |.... •34 .30 .27 •25 .22 .20 .18 .16 .146 .130 .117 .105 •093 \ ^•••■ •39 •35 ■31 .28 • 25 •23 .21 .18 .164 .148 •131 .119 .105 .!•••• ■44 •39 .36 •31 .28 .25 •23 .20 .183 •165 .147 .132 .118 i|.... .48 •44 •39 •35 •31 .28 •25 •23 .203 .182 .162 .146 .129 1 4:::: •54 .48 •43 •39 • 35 •31 .27 •25 .226 .198 .177 .160 .142 •58 •52 •47 .42 •38 •34 •30 .27 .241 .216 .192 .172 •153 ' I--.- •63 •57 •50 •45 .41 •37 •33 •29 .26 •233 .208 .186 .166 if.... •67 .61 •55 •49 • 44 • 39 •35 •31 .28 •25 .223 .199 .177 I .72 •65 •59 •52 •47 .42 .38 •34 •30 .267 • 238 .213 .190 zVi.... •83 •73 .66 .60 •52 • 47 .42 .38 •34 .312 .269 .240 .« •• l3/8.... .92 •83 •73 .66 •59 •52 •47 .42 •37 •336 .299 .268 .'... 1.02 .91 .82 .72 .65 .58 •52 .46 .41 •370 •330 •295 .... Z%.... I. II 1. 00 .89 .80 •71 .64 •57 •50 •45 •403 .360 •333 .... I^.... 1.22 1.08 •97 .86 .78 .69 .62 •55 .49 .438 • 391 .... .... r%.... 1.31 1. 18 1.05 •93 • 83 •75 .66 •59 .52 .472 .421 .... 1%.... 1. 41 1.26 1. 12 1. 00 .89 .80 •71 .64 •57 .506 • 451 .... 2 ... 1.50 1-34 1.20 1.07 .96 .85 •77 .68 .61 •540 .482 .... 2/3.... 1. 61 1-43 1.28 1. 14 1.02 .90 .81 .72 .64 .586 .... 2^.... 1.70 I-5I I -.35 1.22 1.08 •97 .86 •77 .68 .609 .... 2% .... 1.80 1. 61 1-43 1.28 i^i3 1.02 .90 .81 .72 .643 — 25^.... 1.89 1.69 I-5I 1-34 1.20 1.07 .96 •8S •77 .676 .... 2^.... 1.99 1.77 T 86 1-59 T 66 1.42 1.48 1-55 T "6 .89 •93 .98 .80 2%.... 1.32 1-39 1.18 1.05 1. 10 .84 .87 2%.-.. 2.18 1-95 1.74 1.23 .... 3 •••• 2.28 2.04 1.82 1.62 1-45 1.29 1. 14 1.02 .91 .... .... .... sVs---- 3.38 2.48 T? 1.89 1.97 1.70 1.76 1.50 1.56 1.34 1.40 on 1.07 I. II .96 •99 35^.... 2.20 1.25 .... 2-57 2.67 2.77 2.87 2.96 2.30 2.38 2.47 2-55 2.65 2.05 1.83 1.89 1.96 2.03 2.10 1.63 1.69 1-75 1. 81 1.45 1.50 1.56 1.62 1.29 1-34 1.40 1.44 1.49 I-I5 1.20 1.03 1.07 1. 10 .... .... 35^8.... 1.24 1.28 3^.... -> n<3, 1. 14 Iii9 1 3^8.... 2.35 1.87 1.67 1.33 .... 1 ^Umeter, add to ^8. .. 12.85 11.53 10.32 9.24 8.27 7-39 6.61 5-91 5-27 4.71 4M. .. 13-25 11.88 10.64 9-52 8.52 7.61 6.80 6.08 5-43 4-85 4^8. .. 13.64 12.22 10.94 9.80 8-77 7-83 7.00 6.26 5.59 4.99 454- .. 14.03 12.57 11.26 10.07 g.oi 8.0s 7-19 6.43 5.74 5-12 4^8. .. 14.42 12.91 11.56 10.34 9-25 8.27 7-39 6.60 5.89 5.26 5 . .. 14.80 13.26 11.88 10.62 9-50 8.48 7-58 , 6.77 6.05 5.40 SVs. .. 15.19 13.61 12.18 10.89 9-74 8.70 7.78 ~6.95 6.21 5.53 5}{. •• 15.59 13-95 12.49 11.17 9-99 8.92 7-97 7-12 6-35 5-67 sn. .. 15.98 14.30 12.80 11.44 10.24 9-15 8.17 7-30 6.51 5-81 s%. .. 16.37 14.66 13.11 11-73 10.48 9-37 8.37 7.46 6.67 5-94 5Yz. .. 16.76 15.00 13-42 12.00 10.73 9-58 8.56 7.64 6.81 6.08 SK- .. 17.15 15-35 13.73 12.27 10.97 9.80 8.76 7.81 6.97 6.22 5/8. •• 17-55 15-70 14.04 12.55 II. 21 10.02 8.95 7-99 7-13 6.36 6 . .. 17-93 16.04 14.35 •12.83 11.47 10.24 9-15 8.16 7.29 6.50 6'/8. .. 18.32 16.39 14.66 13.10 11.71 10.46 9-33 8.34 7-43 6.64 654:- ., 18.71 16.74 14.97 13-38 11-95 10.68 9-53 8.50 7-59 6.77 6^8. .. iq.io 17.01 15.28 13-65 12.20 10.89 9-72 8.68 7.75 6.91 6^. .. 19.49 17-43 15-58 13-93 12.44 11.11 9-92 8.85 7.90 7-05 6^8- .. 19.89 17.78 15-90 14.21 12.69 11-33 10.11 9-03 8.05 7.18 6^. .. 20.28 18.13 16.20 14.48 12.94 11.55 10.31 9.21 8.21 7.32 6/8. .. 20.66 18.48 16.52 14-75 13.18 11.76 10.50 9-38 8.36 7-45 7 . .. 21.05 18.83 16.82 15.04 13-43 11.98 10.70 9-55 8.52 7-59 lYz. .. 21.44 19.17 17.14 15.31 13-67 12.20 10.90 9.72 8.67 7-73 iV,. .. 21.83 19.52 17.44 15.58 13-91 12.42 11.09 9-90 8.83 7.87 lYi. .. 22.23 19.87 17.76 15.86 14.16 12.64 11.29 10.07 8.98 8.01 7Y2. .. 22.62 20.21 18.06 16.14 14.41 12.86 11. 48 10.25 9-13 8.15 7%. .. 23.01 20.56 18-37 16.41 14.66 13-07 11.68 10.42 9.29 8.28 7^. ... 23.39 20.91 18.68 16.68 14.90 13-29 11.86 10.59 9.44 8.42 7/8. .. 23.78 21.25 18.99 16.96 15-14 13-51 12.06 10.76 9.60 8.56 8 . .. 24.18 21.61 19.30 17.24 15-39 13-73 12.25 10.94 9-75 8.69 Toe ktcrmin e Ot^O-t i CNO O ■ Os o o o o — < ■* > ov-*Tj-^ovo,osovooooooooooo Tf0>0<-OvOvOOvO'->00'<*'>-iOvOO'^l-~lO otNiO'-icsooc-iO'r)'-i"*ro'~oi^OvTt<-*'^r^'* r^^r:O00OCN^O00^000■^0^•^0^■^lOlOl>0l/■yO ,-1 ,-< l-H ,-1 CNl CN) ( ' -^ lO vO «^ OO O O O ■* t^ ■* 'O .-I vO O I ■rflOvCOOO'^OOvf )000 ■ o o o ) l/~; O 'O tvi (M CN O"^<^rOO\CNoq'*00'-i-OOOrtO-i 49 Bridgeport, Connecticut 49 Specific Gravity, Weight and Tensile Strength of Bridgeport Seamless Brass and Copper Tubing i Weight ! Weight per ] p-r Specific Cu. Inch Cu. Foot Gravity Pounds Pounds Tensile Strength er Sq. In. Pounds Brass .3069 .3227 530.3 1 8.495 40.000 557.6 8.932 30.000 ^1 FORMULA FOR CALCULATING COLLAPSING PRES- SURE OF MODERN LAP -WELDED BESSEMER STEEL TUBES [Approximately True for Brass] From Experiments at National Tube Works and reported in Vol. XXVII Trans. A.S.M.E. (1— VT^r6ooT2) P = 1,000 d^ P = 86,670 1,386 (A) (B) Where P= collapsing pressure, pounds per sq. inch. ^= outside diameter of tube in inches. t = thickness of wall in inches. Formula A is of for values of P less than 581 pounds, or for values of t/d less than 0.023, while formula B is for values greater than these. FORMULA FOR DETERMINING THE PROPER THICKNESS OF COPPER PIPES {Prescribed by Board of Supervising Inspectors of Steamboats) The thickness of material, according to the working pressure, shall be determined by the following formula: This proviso shall not apply to copper pipe contracted for previous to June 1, 1911. ^=6;ooo+-^^2^- Where T = thickness in inches. P = working pressure. D = inside diameter of pipe in inches. EXAMPLE: Required the thickness of material of a 5-inch copper pipe for a working pressure of 175 pounds per square inch. Substituting and solving, we have rr. 175X5 5,000 '+.0625=.208. 50 Bridgeport Bras 3 Company 50 SCHEDULE OF STANDARD FLANGES 1 Adopted October 25, 1911, by a Committee of the National || Association of Master Steam and Hot Water Fitters and of The American Society of Mechanical Engineers 11 For Steam Pressures up to 125 lb. per sq. in. II All dimensions are in inches 1 1 Diameter Diameter Size Diameter Thickness of Bolt Number Size of Bolt of Pipe of Flange of Flange Circle of Bolts of Bolts Holes 1 4 ^ 3 4 1^ A IM 4)^ y2 3^ 4 7 T6 1^ IVz 5 A 33^ 4 'A K 2 6 'A 4M 4 A % ,23^ 7 ii 5^ 4 A % 3 73^ H 6 4 A % 3^ 8^ H 7 4 A % 4 9 il 7^ 8 % K 4)^ 9M M 7M 8 % K 5 10 15 16 83^ 8 % A 6 11 1 93^ 8 % A 7 i2y2 1^ 10% 8 % A 8 133^ IVs IIM 8 % A 9 15 IVs 13M 12 % A 10 16 ll^ 143€ 12 K 1 12 19 13€ 17 12 J^ 1 14 0.D. 21 1^ 18% 12 1 13^ 15 0.D. 22M 1^ 20 16 1 13^ 16 0.D. 23^ li^ 213^ 16 1 13^ 18 0.D. 25 1^ 22% 16 IK 1% 20O.D. 271^ IH 25 20 13^ 1% 22 O.D. 291^ lit 273^ 20 13^ 1% 24 0.D. 32 IK 293^ 20 13^ 134 26 O.D. 34M 2 31% 24 13€ 1% 28 O.D. 363^ 2^ 34 28 1% 1% 30 O.D. 3S% 23^ 36 28 IK 13^ Bolt holes should straddle center lines. Flanges should be plain faced. =_ 51 B r i d geport, Co n n e c t i cu t 51 SCHEDULE OF EXTRA HEAVY FLANGES Adopted October 25, 1911, by a Committee of the National Association of Master Steam and Hot Water Fitters and of The American Society of Mechanical Engineers For Steam Pressures from 125 to 250 lb. per. sq. in. All dimensions are in inches Size Diameter Thickness Diameter, Number Size Diameter of Pipe of Flange of Flange of Bolt Circle of Bolts of Bolts of Bolt Holes 1 4^ f^ 3M 4 'A % 1^ 5 M 3^ 4 ^ Vs m 6 if 43^ 4 H M 2 6M % 5 4 H % ly^ W2 1 s% 4 % % 3 8M ^% 6^ 8 M % 33^ 9 ll^ 7M 8 Va % 4 10 IM 7J^ 8 Va Vs 4^ 103^ lA 83^ 8 H Vs 5 11 1^ 9K 8 Va Vs 6 123^ ii^ 10^ 12 H Vs 7 14 1^ llj^ 12 % 1 8 15 \% 13 12 % 1 9 163^ m 14 12 1 1^ 10 18M 1% 15^i 16 1 13^ 12 203^ 2 17M 16 1^ IM 14 0.D. 233^ 23^ 20M 20 1^ 1^8 15 0.D. 25 2A 213^ 20 IM 1^ 16 0.D. 26 2M 223^ 20 1^ 1^ 18 0.D. 283^ 2^^ 24^ 24 1^ 13^ 20O.D. 31 23^ 27 24 13^ 1^ 22 0.D. ZZ 2^ 29K 28 13^ 1^ 24 0.D. 36 2M 32 28 15^ IM Bolt Holes should straddle center lines. Flanges should have ^ inch raised face for gaskets. Square Head Bolts with hexagonal nuts are recommended. 52 B r i d g- e p o r t Brass Company 52 REPORT OF COMMITTEE ON IDENTIFICATION OF POWER HOUSE PIPING— Revise 1305 a In the main engine rooms of plants which are well lighted, and where the functions of the exposed pipes are obvious, all pipes shall be painted to conform to the color scheme of the room ; and if it is desirable to distinguish pipe systems, colors shall be used only on flanges and on valve fitting flanges. h In all other parts of the plant, such as boiler house, basements, etc., all pipes (exclusive of valves, flanges and fittings), except the fire system, shall be painted black, or some other single, plain, durable, inexpensive color. c All fire lines (suction and discharge), including pipe lines, valve flanges and fittings, shall be painted red throughout. d The edges of all flanges, fittings or valve flanges on pipe lines larger than 4 in. inside diameter, and the entire fittings, valves and flanges on lines 4 in. inside diameter and smaller, shall be painted the following distinguishing colors, numbered 1 to 12, inclusive: Distinguishing Colors to be Used on Valves, Flanges and Fittings Only Steam Division a High pressure White b Exhaust system Buff Water Division c Fresh water, low- pressure Blue d Fresh water, high pressure boiler feed lines Blue and White e Salt water piping Green Oil Division / Delivery and discharge — ■ — brass or bronze Yellow Pneumatic Division g All pipes Gray Respectfully submitted, F. R. HUTTON I. E. MOULTROP H. G. Stott Gas Division h City lighting service i Gas engine ser- vice Ahiminum Black, red flanges Fuel Oil Division j All piping Black Refrigerating System k White and green stripes alter- nately on flanges and fittings Body of pipe being black Electric Lines and Feeders. / Black and red stripes alter- nately on flanges and fit- tings Body of pipe being black H. P. Norton J. T. Whittlesey Chairman 53 B r i d g- e p o r t , Connecticut 53 RULES AND REGULATIONS FOR THE USE OF SEAM- LESS BRASS AND COPPER TUBES, AS PRESCRIBED BY THE BOARD OF SUPERVISING INSPECTORS OF STEAMBOATS [Amended to September 25th, 1912] Copper and Brass Tubes May he Used in Construction of Water Tube Boilers When Liquid Fuel is Used Seamless copper or brass tubes not exceeding three-fourths of an inch in diameter may be used in the construction of water-tube boilers or generators when liquid fuel is used. There may also be used in their construction. Copper or brass steam drums not exceeding 14 inches in diameter, of a thickness of material not less than five-eighths of an inch. And copper or brass steam drums 12 inches in diameter and under having a thickness of material of not less than one-half inch. All tubes and drums referred to in this paragraph shall be made from ingots or blanks drawn down to size without a seam. Water-tube boilers or generators so constructed may be used for marine purposes with none other than liquid fuel. (Sec. 4429, R. S.) Flanging of Copper Tubes All copper pipe subject to pressure shall be flanged over or outward to a depth of not less than twice the thickness of the material in the pipe, and such flanging shall be made to a radius not to exceed the thickness of the pipe. On boilers whose construction was commenced after June 30, 1905, no bend will be allowed in copper pipe of which the radius is less than one and one-half times the diameter of the pipe, and such pipe must be so led and flanges so placed that they may be readily taken down if required. Such pipes must be protected by iron casings when run through coal bunkers, and must be clear of the coal chutes. The flanges of all copper steam pipes over 3 inches in diameter shall be made of brass or bronze composition, forged iron or steel, or open-hearth steel castings, and shall be securely brazed or riveted to the pipe. 54 Bridgeport Brass Company 54 Provided, however, That when such pipes are properly formed with a taper through the flange, such taper being fully reenforced, the riveting or brazing may be dispensed with: And provided also, That when the pipe has been expanded by proper and capable machinery into grooved flanges and the pipe flared out at the ends to an angle of approximately 20°, said angle to be taken in the direction of the length of the pipe, and having a depth of flare equal to at least one and one- half times the thickness of the material in the pipe, said riveting or brazing may be dispensed with. Where copper pipes are expanded into or riveted to flanges, it will be necessary for the pipes with their flanges attached to withstand a hydrostatic pressure of two and one-half times the boiler pressure. Flanges shall be not less than four times the required thickness of pipe, plus one-fourth of an inch, and shall be fitted with such number of good and substantial bolts as shall make the joints at least equal in strength to all other parts of the pipe. Any form of joint that will add to the safety or increase the strength of flange and pipe connections over those provided for by this rule will be allowed on any and all classes of steam pipe. Water Conversion Factors U. S. gallons X 8.33 = pounds U. S. gallons X 0.13368 = cubic feet U. S. gallons X 231 = cubic inches U. S. gallons X 0.83 = English gallons U. S. gallons X 3.78 = liters English gallons (Im perial) X 10 = pounds English gallons (Im perial) X 0.16 = cubic feet English gallons (Im perial) X 277.274 = cubic inches English gallons (Im perial) X 1.2 = U. S. gallons English gallons (Im perial) X 4.537 = liters Cubic inches of water (39.1°) X 0.036024 = pounds Cubic inches of water (39.1°) X 0.004329 = U. S. gallons Cubic inches of water (39.1°) X 0.003607 = English gallons Cubic inches of water (39.1°) X 0.576384 = ounces Cubic feet of water (39.1°) X 62.425 = pounds Cubic feet of water (39.1°) X 7.48 = U. S. gallons Cubic feet of water (39.1°) X 6.232 = English gallons Cubic feet of water (39.1°) X 0.028 = tons Pounds of water X 27.72 = cubic inches Pounds of water X 0.01602 = cubic feet Pounds of water X 0.083 = U. S. gallons Pounds of water X 0.10 = English gallons 55 Bri dgep rt, C onnecticut 5E TABLE SHOWING FRACTIONS OF INCH REDUCED ||| TO DECIMAL EQUIVALENTS ||| 64ths. 32ds. 16ths. Decimal 8ths. Equivalents: 1/64 3/64 5/64 V64 9/64 »l/64 . 13/64 15/64 1V64 19/64 V. 23/64 25/64 2V64 2V64 31/64 33/64 35/64 37/64 39/64 ^1/64 «/64 *5/64 ^V64 «/64 51/64 ■ 53/64 55/64 5V64 59/64 61/64 63/64 ' niKfi?^ Ill 1/32 031250 046875 Vl6 062500 07:^19'; 3/32 ' OQ.^T.Sn III 109375 Vs 125000 140625 5/32 156250 171875 Vl6 187500 203125 V32 218750 234375 Vs 250000 265625 9/32 281250 OQfiSJK 5/16 ■ . • 312560 III 328125 11/32 I 34.^7=;0 359375 3/« 375000 390625 13/32 406250 421875 Vl6 437500 453125 15/32 468750 484375 4/« 500000 ' 515625 1V32 531250 " <;AAfi7? 9/16 1 562500 j . 578125 19/32 593750 609375 Vs 625000 .... 640625 21/32 fis;fi?^n 671875 11/16 687500 703125 23/32 718750 . 734375 Vs 750000 765625 25/32 781250 796875 13/16 812500 828125 2V32 m^Tzn ' S^O^T^ III Vs 875000 son/'.'!)!; 29/32 QCif^o^n III 9''1875 15/16 937500 QC21 or 31/32 ::;::::' 968750 OSJ.^7 tJ 56 Bridg-eportB r a s s C D m p a n y 56 TABLE OF EQUIVALENTS OF FRACTIONS OF | MILLIMETERS IN DECIMALS OF INCHES || mm. inches Vioo = .000393 7 mm. inches mm. inches Vioo = .01772 Vioo = .03504 Vioo = . 00079 Vioo = .01811 Vioo = .03543 Vioo = .00118 Vioo = .01851 Vioo = .03583 Vioo = . 00157 Vioo = .01890 Vioo = .03622 Vioo = .00197 Vioo = .01928 Vioo = .03662 Vioo = .00236 Vioo = .01969 Vioo = .03701 Vioo = .00276 Vioo = .02008 Vioo = .03740 Vioo = .00315 Vioo = .02047 Vioo = .03780 Vioo = .00354 Vioo = .02087 Vioo = .03819 ^Vioo = .00394 Vioo = .02126 Vioo = .03858 n/ioo = .00433 Vioo = .02165 Vioo = .03898 • iVioo = . 00472 Vioo = .02205 1 =.03937 iVioo = .00512 Vioo = .02244 2 = .07874 iVioo = . 00551 Vioo = .02284 3 = . 11811 Vioo = .00591 Vioo = .02323 4 = . 15748 "/loo = .00630 Vioo = .02362 5 =.19685 Vioo = .00669 Vioo = .02402 6 = . 23622 iVioo = . 00709 Vioo = .02441 7 = . 27559 Vioo = .00748 Vioo = .02480 8 = . 31496 Vioo = .00787 Vioo = .02520 9 = .35433 Vioo = .00827 Vioo = .02559 10 = .39370 Vioo = .00866 Vioo = .02598 11 = .43307 Vioo = .00906 Vioo = .02638 12 = .47244 Vioo = .00945 Vioo = .02677 13 = . 51181 Vioo = .00984 Vioo = .02717 14 = . 55118 Vioo = .01 024 Vioo = .02756 15 = .59055 Vioo = .01063 Vioo = .02795 16 = .62992 Vioo = .01 102 Vioo = .02835 17 =.66929 Vioo = .01142 Vioo = .02874 18 = .70866 Vioo = .01181 Vioo = .02914 19 = .74803 Vioo = .01220 Vioo = .02953 20 = .78740 Vioo = .01260 Vioo = .02992 21 =.82677 Vioo = .01299 Vioo = .03032 22 = .86614 Vioo = .01339 Vioo = .03071 23 = .90551 Vioo = .01378 Vioo = .03110 24 = .94488 ' Vioo = .01417 Vioo = .03150 25 = .98425 Vioo = .01457 Vioo = .03189 26 = 1.02362 Vioo = .01496 Vioo = .03228 27 = 1.06299 Vioo = .01535 Vioo = .03268 28 = 1.10236 Vioo = .01575 Vioo = .03307 29 = 1.14173 Vioo = .01614 85/^^^^.03347 30=1.18110 Vioo = .01654 Vioo = .03386 31 = 1.22047 Vioo = .01693 Vioo = .03425 32=1.25984 Vioo = .01732 Vioo = .03465 33 = 1.29921 1 mm. = ..03937 In. 10 m. 1 Meter = . . .39.37 In. 10 mm. = 1 Centimeter =0.3937 In. 25.4 mm. = 1 English In. 10 cm. =1 Decimeter = 3.937 In. _^.^_.=^^ 57 Bridgeport, Connecticut 57 TABLE OF EQUIVALENTS OF MILLIMETERS || 1 IN DECIMALS OF INCHES || mm. inches mm. inches mm. inches 34=1.33858 78 = 3.07086 122=4.80314 35 = 1.37795 79 = 3.11023 123=4.84251 36 = 1.41732 80 = 3.14960 124 = 4.88188 37 = 1.45669 81 = 3.18897 125=4.92125 38 = 1.49606 82 = 3.22834 126 = 4.96062 39 = 1.53543 83 = 3.26771 127 = 4.99999 \ 40 = 1.57480 84 = 3.30708 128 = 5.03936 41 = 1.61417 85 = 3.34645 129 = 5.07873 ! 42 = 1.65354 86 = 3.38582 130 = 5.11810 43 = 1.69291 87 = 3.42519 131=5.15747 44 = 1.73228 88 = 3.46456 132 = 5.19684 45 = 1.77165 89 = 3.50393 133 = 5.23621 J 46 = 1.81102 90 = 3.54330 134 = 5.27558 47 = 1.85039 91 = 3.58267 135 = 5.31495 48 = 1.88976 92 = 3.62204 136 = 5.35432 49 = 1.92913 93 = 3.66141 137 = 5.39369 50 = 1.96850 94 = 3.70078 138 = 5.43306 51 = 2.00787 95 = 3.74015 139 = 5.47243 52 = 2.04724 96 = 3.77952 140 = 5.51180 53 = 2.08661 97 = 3.81889 141 = 5.55117 54 = 2.12598 98 = 3.85826 142 = 5.59054 55 = 2.16535 99 = 3.89763 143 = 5.62991 56 = 2.20472 100 = 3.93700 144 = 5.66928 57 = 2.24409 101 = 3.97637 145 = 5.70865 58 = 2.28346 102 = 4.01574 146 = 5.74802 59 = 2.32283 103 = 4.05511 147 = 5.78739 60 = 2.36220 104 = 4.09448 148 = 5.82676 61=2.40157 105 = 4.13385 149 = 5.86613 62 = 2.44094 106 = 4.17322 150 = 5.90550 63 = 2.48031 107 = 4.21259 151 = 5.94487 64 = 2.51968 108 = 4.25196 152 = 5.98424 65 = 2.55905 109 = 4.29133 153 = 6.02361 66 = 2.59842 110 = 4.33070 154 = 6.06298 67 = 2.63779 111 = 4.37007 155 = 6.10235 68 = 2.67716 112 = 4.40944 156 = 6.14172 69 = 2.71653 113 = 4.44881 157 = 6.18109 70 = 2.75590 114 = 4.48818 158 = 6.22046 71 = 2.79527 115 = 4.52755 159 = 6.25983 72 = 2.83464 116 = 4.56692 160 = 6.29920 73 = 2.87401 117 = 4.60629 161 = 6.33857 74 = 2.91338 118 = 4.64566 162 = 6.37794 75 = 2.95275 119 = 4.68503 163 = 6.41731 76 = 2.99212 120 = 4.72440 164 = 6.45668 77 = 3.03149 121=4.76377 165 = 6.49605 1 mm. = 03937 In. 10 m. = I Meter = 39.37 In. 10 mm. = 1 Centimeter = 0.3937 In. 25.4 mm. = 1 English In. 10 cm. =1 Decimeter = 3.937 In. 58 Bridgeport Brass Company 58 TABLE OF EQUIVALENTS OF MILLIMETERS IN DECIMALS OF INCHES mm. 166 = 167: 168: 169: 170 = 171: 172 = 173 = 174 = 175 = 176 = 177 = 178 = 179 = 180 = 181 = 182 = 183 = 184 = 185^ 186 = 187 = 188 = 189 = 190 = 191 = 192 = 193 = 194 = 195 = 196 = 197 = 198 = 199 = 200 = 201 = 202 = 203 = 204 = 205 = 206 = 207 = 208 = 209 = 210 = inches = 6.53542 = 6.57479 = 6.61416 = 6.65353 = 6.69290 = 6.73227 = 6.77164 :6.81101 : 6.85038 = 6.88975 :6.92912 : 6.96849 : 7.00786 : 7.04723 = 7.08660 7.12597 7.16534 7.20471 7.24408 7.28345 : 7.32282 7.36219 7.40156 7.44093 7.48030 7.51967 7.55904 7.59841 7.63778 7.67715 7.71652 7.75589 : 7.79526 : 7.83463 7.87400 = 7.91337 = 7.95274 : 7.99211 = 8.03148 = 8.07085 =8.11022 =8.14959 =8.18896 = 8.22833 = 8.26770 mm. 211 = 212 = 213: 214: 215: 216 = 217 = 218 = 219 = 220 = 221 = 222 = 223 = 224 = 225 = 226 = 227 = 228 = 229 = 230 = 231 = 232 = 233 = 234 = 235 = 236 = 237 = 238 = 239 = 240 = 241 = 242 = 243 = 244 = 245 = 246 = 247 = 248 = 249 = 250 = 251 = 252 = 253 = 254 = 255 = inches = 8.30707 = 8.34644 = 8.38581 = 8.42518 = 8.46455 = 8.50392 = 8.54329 = 8.58266 = 8.62203 = 8.66140 =8.70077 = 8.74014 = 8.77951 = 8.81888 = 8.85825 =8.89762 = 8.93699 : 8.97636 :9.01573 = 9.05510 = 9.09447 =9.13384 = 9.17321 =9.21258 =9.25195 = 9.29132 = 9.33069 =9.37006 =9.40943 = 9.44880 = 9.48817 = 9.52754 :9.56691 =9.60628 =9.64565 =9.68502 =9.72439 =9.76376 =9.80313 = 9.84250 =9.88187 = 9.92124 = 9.96061 = 9.99998 = 10.03935 mm. 256 = 257 = 258 = 259 = 260 = 261 = 262 = 263 = 264 = 265 = 266 = 267 = 268 = 269 = 270 = 271 = 272 = 273 = 274 = 275 = 276 = 277 = 278 = 279 = 280 = 281 = 282 = 283 = 284 = 285 = 286 = 287 = 288 = 289 = 290 = 291 = 292 = 293 = 294 = 295 = 296 = 297 = 298 = 299 = inches = 10.07872 =10.11809 = 10.15746 10.19683 10.23620 10.27557 10.31494 10.35431 10.39368 10.43305 10.47242 10.51179 10.55116 10.59053 10.62990 10.66927 10.70864 10.74801 10.78738 10.82675 10.86612 10.90549 10.94486 10.98423 11.02360 11.06297 11.10234 11.14171 11.18108 11.22045 11.25982 11.29919 11.33856 11.37793 11.41730 11.45667 11.49604 11.53541 11.57478 11.61415 11.65352 11.69289 11.73226 11.77163 1 nim. = 03937 In. 10 m. 10 mm. = l Centimeter =0.3937 In. 25.4 mm. 10 cm. =1 Decimeter =3.937 In. 1 Meter: .. . . 39.37 In. 1 English In. Bridgeport, Connecticut 59 TABLE SHOWING THE DIFFERENCE BETWEEN THE VARIOUS STANDARDS OF GAUGES, FIGURED IN DECIMAL PARTS OF AN INCH No. ^^ E So 10 (U few c§0 0 O r^ ir^ O O lO lO -^ -^ CO CO 00 t:)h lO O r- 00 On O O CN CO s o6 •^ -^ t-^ O CO r-^ d CO NO T-l 'tl NO 00 T^ CO LO 00 O fN ■^ ^— 1 •^ CN CN 1 o \0 -rH o o \0 O "0 to lO Tt< CO CO fN CN ft. 1:^ t— 1 fN rO -^ to NO i>- 00 On O ^ NO On CN tri CO ■--I x^i^ t^ d x* 1 ■^ ro NO 00 O CO to t- O r^i ^ T— 1 I— 1 ■rH CS CN 2 t^ r* ^ rt^ CO (N CS ■^ --^ •« 01 fen VO 00 ON O ■^ r^ rr^ NO d ^ NO CO rt< lo NO r- O^ rvi lo 00 -^ R\ ^ ro NO 00 O CN lO t^ On ro ^ ^ ^ ^ ^ ^ CvJ HiO S k. ^ t^ CN t^ •r-l ■<*'*' PO fO ro CN CN T-l ^— 1 O 2°^ rC lO LO NO t-- 00 ON ^ -^ t^ d ro O '-H CvJ CO Tj^ i>I d CO NO o^ >* O ^ CO lO 00 O r5 to (^ CN CN CN ^ ^ O O ON 3 » ^ 02 to ^2 (^ s X 00 ro 00 ro t^ CN rvi -r^ •^ O O O ON Os OO o c CO Is. fO On O -^ Ol )■* CO LO J>- On ■^ ^ NO ON ---H •«i. 11 --H rl T-l -^ CN 1 li On x*! 00 ro 00 ^ th ^ O O OS ON On 00 00 t^ t tN NO t^ 00 On On O --^ r^ CO Tt fe. ■^' r~; d CO NO d CO* NO O^ fN c S CN LO t^ ON CN -^ NO 00 --H o o E^ ^ fe3 ^ 5 • ON -^ On ^ 00 O O ON ON 00 00 00 t-- f- NO ,,_, ro rh ^_ LO NO 1>- 00 ON O '— 1 5 CN lO 00 -^ x* ^~I d CO t--^ d CN x* J>- On ■^ ^ O 00 -^ tH -^ .rH ■,-< CN i t^ x* •.-1 00 to CM On NO CO rf On Tt< 00 CO 00 CN t-- CN On CO 00 t^ j^ o NO to to o O '-H r-4 ro rf to vO t~- OO CO NO O^ CN to 00 ■^' ■^" t:;; CN rf NO On •--( CO NO 00 O 1 " " " " ^ (U l-c Tr, ^ o o o o o o o o o o ■r-( CN ro -^ lO NO t^ 00 ON S^ ^^^ := ^ 63 Bridgeport, Connecticut 63 r vo o i 1 2 o 1 1 o ft. The pressure of still water in pounds per square inch against the sides of any pipe, channel or vessel of any shape whatever is due solely to the "head," or height of the level surface of the water above the point at which the pressure is considered, and is equal to .43302 lb. per square inch for every foot of head, or 62.355 lbs. per square foot for every foot of head (at 62 degrees F.) c 3 cr C/3 OS t^ t^ t^ t— t-- ON CN lO OO '-H 00 CN lo 00 rsj CO 00 CN \d ■"-H ^ T-i CN t^ t^ r^ t-^ t^ T^l t^ O CO NO LO 00 CN lO 00 LO On -^ 00 CN CN CN CO CO ■<* 00 ^^ r^ '^ r^ rt^ vO On CN LO oO '*. *~^ '^. ^. ^ CO *>! OJ vo O •^ '^ -^ ^ NO T-H "^ !>. O CO T-I T^l r^ i-H TtH LO* ON CO 00 CN CN CN CO CO -^ r^ , .^^ w CO O On ro LO O CO O O CO co' t-^ •«-H O O tH ^— 1 CN OO -^ -^ t~- O NO O CO NO O Tt^' On' CO t^ C^i CN CN CO CO >* O 00 00 OO 00 00 On CN lO 00 -^ »0 On CN lO ON CN vd i-H lO On tH T-< T-H 00 OO 00 00 00 Tt* t-. O CO NO CN LO CTN CS LO T^* CO (N t^ -rH CN CN CO CO -^ lO lO LO lO lO lO NO On c» lO 00 '-H ^_ OO tH rt< CN vd O LO On T-l irH tH lO LO LO LO LO --I ^ t^ O CO OO ^ Tl^ 00 -rH CO* 00 CN NO i-^' CN CN CO CO -^ rt^ CN CN CN CN CN CO NO ON CN lO • X^ O CO t^ O ■rH* VO d -1^ Os' CN CN CN CN CN 00 ^ ^ t^ O CO r^ O CO t~^ CO t^ CN* NO d CN (N CO CO '^ CO On On On On On On (N LO 00 T-i CN NO ON (N NO T-5 LO On T:t^ o6 ^— 1 1— I On On On On ON T^ I-» O CO NO On CN NO On CN CN* f^ •.-3 LO* d CN CN CO CO rt< ^ NO NO >0 NO NO NO On CN lO 00 00 •rH LO 00 .^ d »0 On CO 00 NO O NO O NO ^ -^ t^ O CO LO CO -rH LO OO CN NO 1-^ lO On CN CN CO CO CO - CO CO CO CO CO CO NO On CN LO •^ t^ O -^ i:^ d -^ On CO !>; CO CO CO ^ CO 00 -^ -^ t^ o O -^ t-. o -* CN NO d LO On CN CN CO CO CO O . o o o o . CO NO ON CN . CO NO On CO • rl^ 00 CN t^ •«-H 1—1 ^§2^S NO ON CO NO On ■--i LO d ■^* od CN CN CO CO CO Head, Feet ^2^^^ ^§S§g 64 Br idgeport Brass Company 64 '^ o 00 lO CM 00 ^ CS O t- 00 00 fO •^ O '^ '■^ ifi ■ o C^vOO-^CMiOTj^CNOO'^csiOvOrOt-^OOTi^r- t- > ^ OOrJiO'rHCMvoi>-0\OiO'*iTtiO OOOOO'^CNtMiOOOOOCS'-iOf^vOOfOfO t^ Vh p o o q o q o o q o o -^^ fo lo !>; q '^ a\ -* o q > 6 < i *'"' ^' ^' ^" csj ro 'o ro ID CO t^ CM •.-( ro t^ O T^ t-- ■>-< O t^ lO ^^ lO rrjt^fO'^iOvOvOr^Ot^rsl-^OOOOCMOOfO O 1— 1 OOCNiOCNiOrOPC'-HOOOsCSOOvOOO'— I'* '-i U\ o 00000'>-ic.CNiOiOf000CNO0v-^as ooooooqoq'-|cs'*j>.qioqo'^^(N;'rH 'o ,_, T-^* ■r-i oi CN ro ■^* fl rS ^ lO CM Os OO CO f-. lO ^ T-l lO '^i CM o f CM oo On 00 lo 00 NO On lO t^ 00 ro •^ 5- s o lO'^vO'^O^OrorO'OOOOOOfOOfOCMiOt-^t^'^ o O''-iP000iO-^I->f0N0N0O00f0'^'^N0O\'*O ON .s O O O O -^ CM m to OMO rO 00 -^ "-it^ NO t- Tt rf cN CO ^ 'H 000000000'-iroiOON'*ONNq'*'*iOT-K 03 o T-l •r-I ^* CS CO '*' LO ■^tO'— iT-irCCMiOON-^cO'— iOn as- ~ o NO'*iOO'*iCMt^rCCN'^CMOCMt^--H.^^THrO — < ^ ■^ O»-''*O00OiOu-300t-iiO'<— !iOtO"^iO-— ICOIOOO "^ q S^ OOO'-H'THfO^NOT-iONOCMtOi— i^-hnOnO-^OO id fc? o .^ oooooooO'<-iT-i'*t^^t^^cMCM-^t^:-^ TJrx '^ ^* ,.; CM CO -* U-i O 1 o O -^ OO O t^ ■<* O t^ CM ■^ On .ONcocoir^-^Ot^l^iDCM o rsia;oooO'*-^r-.^CM'd^cM^'*^(NCM cm §1 '—' ■^r^iONOOO'^OOCMOCMO'^oOOC^lNOrH'NO .S OOOr o trj fe° [ 1— 1 T— 1 21 1 5=: 1 S SJ ;i^^:^ :^:^::^ ::^^ ^^^^CMCMcO'^iONOr^oOONO'^CN' 03 I OS c C ! tM CO -^ ID -^ On lO NO t^ NO <4-. 1] O 1 Ol>_ : Ot-h ID COIDIO COID 00 ON O O 00 Q H Based Value ac V] 'rhONOOcONOT-iCNrOt-OOcO'^NOCslOtMCMOOOO., OOCMNO'.-iO\00^'*ONOOOiDt->iDiDCM'.^ 2^ q O O O ■>-< T-H CM -^^ t^ CM ID ID CO CO CM NO On -^ On ^ ■^* cm' rt !>.* O ID O O ri? (N ,53 T-H .^ r^ CM CO -^ > 65 Bridgeport, Connecticut 65 QUANTITY OF WATER IN CU. FT. PER MINUTE DICHARGED FROM HOUSE SERVICE PIPES It is assumed that Pipes are Straight and Smooth Inside. From Data Furnished Thompson Meter Co. by E. Kuichling, C. E. Pressure Nominal Diameter of Pipes in Inches in Main Pounds II per Sq In H H ?4 1 132 2 3 4 6 Through 35 ft. of Service Pipe, no Back Pressure || 30 1.10 1.92 3.01 6.13 16.58 33.34 88.16 173.85 444.63 40 1.27 2.22 3.48 7.08 19.14 38.50 101.80 200.75 513.42 50 1.42 2.48 3.89 7.92 21.40 43.04 113.82 224.44 574.02 60 1.56 2.71 4.26 8.67 23.44 47.15 124.68 245.87 628.81 75 1.74 3.03 4.77 9.70 26.21 52.71 139.39 274.89 703.03 100 2.01 3.50 5.50 11.20 30.27 60.87 160.96 317.41 811.79 130 2.29 3.99 6.28 12.77 34.51 69.40 183.52 361.91 925.58 Through 100 ft. of Service Pipe, no Back Pressure | 30 0.66 1.16 1.84 3.78 10.40 21.30 58.19 118.13 317.23 40 0.77 1.34 2.12 4.36 12.01 24.59 67.19 136.41 366.30 50 0.86 1.50 2.37 4.88 13.43 27.50 75.13 152.51 409.54 60 0.94 1.65 2.60 5.34 14.71 30.12 82.30 167.06 448.63 75 1.05 1.84 2.91 5.97 16.45 33.68 92.01 186.78 501.58 100 1.22 2.13 3.36 6.90 18.99 38.89 106.24 215.68 579.18 130 1.39 2.42 3.83 7.86 21.66 44.34 121.14 245.91 660.36 Through 100 ft. of Service Pipe, and 15 ft. Vertical Rise || 30 0.55 0.96 1.52 3.11 8.57 17.55 47.90 9M7 1 260.56 40 0.66 1.15 1.81 3.72 10.24 20.95 57.20 116.01 311.09 ; 50 0.75 1.31 2.06 4.24 11.67 23.87 65.18 132.20 354.49 60 0.83 1.45 2.29 4.70 12.94 26.48 72.28 146.61 393.13 75 0.94 1.64 2.59 5.32 14.64 29.96 81.79 165.90 444.58 100 1.10 1.92 3.02 6.21 17.10 35.00 95.55 193.82 519.72 130 1.26 2.20 3.4« 7.14 19.66 40.23 109.82 222.75 597.31 Through 100 ft. of Service Pipe, and 30 ft. Vertical Rise || 30 0.44 0.77 1.22 2.50 6.80 14.11 38.63 78.54 211.54 40 0.55 0.97 1.53 3.15 8.68 17.79 48.68 98.98 266.59 50 0.65 1 14 1.79 3.69 10.16 20.82 56.98 115.87 312.08 60 0.73 1.28 2.02 4.15 11.45 23.47 64.22 130.59 351.73 75 0.84 1.47 2.32 4.77 13.15 26.95 73.76 149.99 403.98 100 1.00 1.74 2.75 5.65 15.58 31.93 87.38 177.67 478.55 I 130 1.15 2.02 3.19 6.55 18.07 37.02 101.33 206.04 354.96 j ! Deliveries will be greater if: u| First, If the pipe between meter and the main is of larger diameter than outlet. { Second, If main is tapped, say for 1-inch pipe, but enlarged from the j tap to IM or 1 1 i inch; or, I Third, If pipe on outlet is larger than that on inlet side of meter. 66 Bridgeport Brass Company 6( Quantity of Water Discharged and FrictionLoss ii Plotted from Ellis & Rowland's Table by Walter R. Clark Cubic Foot per Minute Flc Gallons per Minute Flow Example I. Given 200 gallons per minute flow for 100 ft. with 10 lbs. pressure loss. Follow vertical line of 200 G.P.M. and horizontal line of 10 lbs. pressure drop to inter- section lying between 2^" and 3" pipe diameter and 12 and 13 F.P.S. velocity. V^ = Velocity in feet per second G = Gallons per minute F = Pounds friction loss per 100 feet Bridgeport, Connecticut 67 Ilean Straight Pipes at Different Velocities of Flow ti. B., Designing Engineer with Bridgeport Brass Co. ubic Foot per Minute Flow Gallons per Minute Flow Example II. Given 4" I.D. pipe and 5 ft. per second velocity. At intersection read down and get 196 G.P.M. and up to get 26 cu. ft. flow read to left and get 2.7 ft. head loss and to right and get 1.17 lbs. pressure drop per 100 ft. Q = .245 V D2 F = .03 Q3/D5 for V > 3 D = Diameter in inches 68 Bridgeport Brass Company 68 TABLE SHOWING AREAS OF CIRCLES FOR DIAMETERS Advancing Diameters of Circles in Inches Fractions of Inch Otofi 1 2 3 4 .7854 3.1416 7.0686 12.566 V64 .0002 .8101 3.1907 7.1422 12.664 V32 .0008 .8342 3.2403 7.2163 12.763 V64 .0017 .8607 3.2903 7.2908 12.862 Vl6 .0031 .8866 3.3410 7.3662 12.962 Ve. .0048 .9128 3.3917 7.4414 13.062 V32 .0069 .9395 3.4428 7.5170 13.162 .Ve. .0094 .9664 3.4946 7.5935 13.263 Vs .0123 .9940 3.5466 7.6699 13.364 V64 .0155 1.0218 3.5986 7.7467 13.465 /32 .0192 1.0500 3.6515 7.8238 13.567 "764 .0232 1.0786 3.7045 7.9013 13.669 Vie .0276 1.1075 3.7583 7.9798 13.772 "/64 .0324 1.1368 3.8120 8.0580 13.875 V32 .0376 1.1665 3.8662 8.1368 13.978 15/64 .0431 1.1967 3.9211 8.2162 14.082 V'4 .0491 1.2272 3.9761 8.2958 14.186 "/64 .0554 1.2592 4.0314 8.3755 14.290 V32 .0621 1.2892 4.0871 8.4558 14.395 1V64 .0692 1.3209 4.1431 8.5364 14.500 Vl6 .0767 1.3530 4.2000 8.6179 14.607 2V64 .0846 1.3853 4.2569 8.6992 14.712 1V32 .0928 1.4189 4.3141 8.7810 14.819 2V64 .1014 1.4512 4.3721 8.8636 14.926 3/^ .1105 1.4849 4.4301 8.9462 15.033 ^Ve. .1199 1.5187 4.4884 9.0290 15.140 "/3 2 .1296 1.5531 4.5472 9.1123 15.248 2V64 .1398 1.5878 4.6064 9.1960 15.356 Vl6 .1503 1.6230 4.6664 9.2806 15.466 2V64 .1613 1.6585 4.7263 9.3650 15.574 ^32 .1726 1.6942 4.7866 9.4498 15.684 3V64 .1842 1.7305 4.8477 9.5355 15.794 69 B r i d g- e p o r t , Connecticut 69 IN INCHES AND FRACTIONS OF INCHES ^ TORINO. by ^ths Fractions of Inch Diameters of Circles in Inches "/. ^V» ^Va Vi6 Vi« Vi. 19.635 19.757 19.881 20.004 20.129 20.253 20.378 20.503 20.629 20.755 20.881 21.007 21.135 21.262 21.390 21.519 21.648 21.776 21.905 22.035 22.166 22.296 22.427 22.559 22.691 22.822 22.955 23.087 23.221 23.355 23.488 23.624 28.274 28.421 28.569 28.717 28.866 29.015 29.164 29.315 29.465 29.615 29.766 29.917 30.069 30.221 30.373 30.526 30.680 30.833 30.986 31.140 31.296 31.451 31.606 31.763 31.919 32.075 32.232 32.389 32.548 32.706 32.864 33.024 38.485 38.656 38.828 39.001 39.175 39.348 39.522 39.696 39.871 40.046 40.221 40.397 40.547 40.750 40.927 41.105 41.282 42.718 50.265 63.617 51.849 65.397 53.456 67.201 55.088 69.029 1 70 Bridgeport Brass Company 7o| TABLE SHOWING AREAS OF CIRCLES FOR DIAMETERS Fractions of Inches MtoH Diameters of Circles in Inches 1 2 3 4 V2 .1964 1.7671 4.9087 9.6211 15.904 33/e4 .2087 1.8041 4.9701 9.707 16.015 ^V32 .2217 1.8415 5.0320 9.792 16.125 3V64 .2349 1.8793 5.0942 9.880 16.237 3V64 Vl6 .2485 1.9175 5.1572 9.968 16.349 .2625 1.9560 5.2202 10.055 16.461 1V32 .2769 1.9949 5.2835 10.143 16.573 ^Ve. .2917 2.0342 5.3478 10.232 16.687 Vs .3068 2.0739 5.4119 10.321 16.800 «/6. .3223 2.1140 5.4764 10.409 16.914 -V^32 .3382 2.1544 5.5412- 10.499 17.027 *V64 .3537 2.1952 5.6066 10.589 17.142 "/l6 .3712 2.2365 5.6727 10.680 17.257 ^/e. .3883 2.2781 5.7387 ■ 10.770 17.372 2V32 .4057 2.3202 5.8051 10.861 17.488 ^64 .4236 2.3625 5.8723 10.953 17.604 V4 .4418 2.4053 5.9396 11.045 17.728 *V64 .4603 2.4484 6.0071 11.137 17.837 ^V32 .4794 2.4919 6.0751 11.229 17.954 "/64 .4988 2.5358 6.1434 11.322 18.071 ^Vl6 .5185 2.5802 6.2126 11.416 18.190 SV64 .5383 2.6248 6.2817 11.509 18.308 2V32 .5591 2.6690 6.3512 11.60^ 18.426 5V64 .5800 2.7153 6.4214 11.698 18.546 Vs .6013 2.7612 6.4918 11.793 18.665 "/64 .6229 2.8073 6.5624 11.888 18.785 ^V32 .6450 2.8539 6.6335 11.984 18.905 ^V64 .6675 2.9008 6.7049 12.080 19.025 Vx« .6903 2.9483 6.7771 12.177 19.147 «Ve4 .7135 2.9960 6.8493 12.273 19.268 3V32 .7371 3.0441 6.9218 12.370 19.390 ^3/64 .7667 3.0926 6.9952 12.468 19.512 71 Bridgeport, Connecticut 7]. IN INCHES AND FRACTIONS OF INCHES FROM 3^ TO M Fractions of Inches 3_3 4-„ 63 6 4 ^^ 6 4 ^64 ^64 39/64 «/64 «/64 ^64 «/64 ^V64 53/64 5V64 "/64 59/64 ^64 «V64 ^V= ^Va ^Va. "/: =v. ''/, ^Vi Vl Diameters of Circles in Inches 23.758 23.893 24.028 24.152 24.301 24.438 24.574 24.713 24.850 24.988 25.127 25.265 25.406 25.545 25.685 25.826 25.967 26.108 26.249 26.391 26.535 26.677 26.820 26.965 27.109 27.253 27.397 27.542 27.688 27.834 27.980 28.127 33.183 33.343 33.502 33.663 33.824 33.985 34.147 34.309 34.472 34.634 34.797 34.960 35.125 35.289 35.454 35.619 35.785 35.950 36.116 36.283 36.450 36.618 36.785 36.954 37.122 37.291 37.460 37.629 37.800 37.971 38.141 38.313 44.179 45.664 47.173 56.745 58.426 48.707 60.132 61.862 72 Bridgeport Brass Company 72 En o o O i s i i § S 1 i t/3 O c/5 m ^. II d O 1 A! H cs iC^r^— lOONCOt^lO-^r^CM— OOOt-NOiO'tCN^ 1 o! Tt^ 0-- ^ O^ rc 00 ro 00 r^- 00 rrj 00 ro t- (>i r-^ CN t- fO f^ 1 i-csnO— iioOtON<^00<>)t-—iNOOir>ONrtoooO^ONOO^<^^ - 104.7. 130.9 157. 0( 183.2' 209.4. 235.6. 261.8: 288.0( 314.15 340.3( 366.5^ NO 97.25 121.56 145.87 170.18 194.49 218.80 243.11 267.43 291.74 316.05 ...... NO 89.7 12.2 34.6. 157.0< 79.5. 201.9 J46.8( >69.3( lO p^ r-j ro '^ "* lo iri NO '.'.'.'. t : : : t : ; t '. tl lO 74.8 93.5 12.2 30.9 49.6 68.3 87.0 5 67.3: 84.1( 00.9f 17.8: 34.6. 51.4{ '^ oooot-t-. NO • • • ; ; ; ; ; ; ; ; ; ; ; : : 1 o^ T^ o^ ^ ON - '• '• ■.::*. *. ; : ; ; t ; *. t II ro 52.3( 65.4. 78.5^ 91.6^ fO 00-5 100 Bridgeport Brass Company lOO Memoranda 003 321 090 5% forArchitects Engineers and Superintendents Bridgeport Brass Co Bridgeport ConnUS A