Turning and boring tapers . ( degrees, or almost i degree and 15 minutes. The same makers allow a taper of y^-Q of an inchper foot in their hardened and ground steel mandrels. The Brown & Sharpe Mfg. Co. allow^ tcmTo of ^ninch per foot on arbors, making them j4 a thousandth. Morse taper shanks. No. A B C D E T apcr in12 in. 1 99. -8 .356 .475 1 ti4 .COO 2 ^ 1- 21 .556 .700 14 .602 3 3f ;3l6 .759 .938 51 6 .602 4 4f 41 .997 153 2 .623 5 6 51 5 8 .630 8 « ^ 016 8 3 4 .626 22 Turning and Boring Tapers. below size at the small end on small sizes, and -ro\o be-l
Turning and boring tapers . ( degrees, or almost i degree and 15 minutes. The same makers allow a taper of y^-Q of an inchper foot in their hardened and ground steel mandrels. The Brown & Sharpe Mfg. Co. allow^ tcmTo of ^ninch per foot on arbors, making them j4 a thousandth. Morse taper shanks. No. A B C D E T apcr in12 in. 1 99. -8 .356 .475 1 ti4 .COO 2 ^ 1- 21 .556 .700 14 .602 3 3f ;3l6 .759 .938 51 6 .602 4 4f 41 .997 153 2 .623 5 6 51 5 8 .630 8 « ^ 016 8 3 4 .626 22 Turning and Boring Tapers. below size at the small end on small sizes, and -ro\o be-low size at small end from ^ inch to 2 inches. Locomotive builders use a large number of bodybound taper bolts in the frames, cylinders, etc. TheBaldwin Locomotive Works use --^q inch per foot, andthe Pennsylvania R. R. 3^ inch per foot. These areturned in special lathes in which the tool travels at thedesired angle with the centers. 23 DEC 24 1903 LIBRPRY OF CONGRESS 0 013 960 737 5 <0 A Sure Thingin Book Buying Ever buy Books ? Technical or Educational Books ? Ever been disappointed after you had let go of your good money and received-ihing. that didnt fill the bill ? Ever get any of your cash back ? Never yet ? Now, heres a new way of selling books. The Derry-C
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