id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
31756	Battison, Edwin A.	Screw-Thread Cutting by the Master-Screw Method since 1480			.txt	text/plain	5617	294	65	_Among the earliest known examples of screw-thread cutting machines to figure 1 shows that the threads on the lead screw and on the work, MASTER-SCREW TYPE of thread-cutting machine. These slides are shown as part of a screw-cutting machine with a [Illustration: Figure 2.--CROSS-SLIDE for the thread-cutting lathe of [Illustration: Figure 3.--SMALL THREAD-CUTTING LATHE which was made to Figure 6 shows the traversing spindle and nut removed from the machine. [Illustration: Figure 6.--WORK SPINDLE AND ITS NUT removed from the the combination of screw-cutting machines with simple lathes as seen in of figure 9, showing the crude tool-support without screw adjustment. The introduction of gearing between the spindle and the lead screw, for [Illustration: Figure 15.--MAUDSLAY'S WELL-KNOWN screw-cutting lathe of [Illustration: Figure 17.--DAVID WILKINSON'S SCREW-CUTTING LATHE, [Illustration: Figure 20.--A HOB-GRINDING MACHINE patented in 1932 and [Illustration: Figure 21.--A HOB-GRINDING MACHINE OF 1933, showing use	./cache/31756.txt	./txt/31756.txt