Appleton's dictionary of machines, mechanics, engine-work, and engineering . m the Lowell Machine Shop 190 LATHE. LATHE, FOR GUN BORING, TURNING, AND PLANING, arranged for Jhe Ordnance Department, U. S. Navy Yard, Washington, by Wm. M. Ellis, Engineer. Figs. 2516 to 2522. Fig. 2519. c, rest for supporting the muzzle of the gun •while bonng. d, pulley, with belt motion above, for drawing boring-bar. When boring, the turning mandrel is taken out and the boring-bar put in its place; the back-head mforced up by feed-screws in the same manner as slide-rest for turning. Fig. 2518. C, plauing-head an
Appleton's dictionary of machines, mechanics, engine-work, and engineering . m the Lowell Machine Shop 190 LATHE. LATHE, FOR GUN BORING, TURNING, AND PLANING, arranged for Jhe Ordnance Department, U. S. Navy Yard, Washington, by Wm. M. Ellis, Engineer. Figs. 2516 to 2522. Fig. 2519. c, rest for supporting the muzzle of the gun •while bonng. d, pulley, with belt motion above, for drawing boring-bar. When boring, the turning mandrel is taken out and the boring-bar put in its place; the back-head mforced up by feed-screws in the same manner as slide-rest for turning. Fig. 2518. C, plauing-head and tool-holder, bolted on slide-rest of lathe in place of tool-holder foJturning. h, slide of tool-holder. i, cogged sector working in rack on bottom of drill of tool-holder. t, shifting crank to convey motion to sector. E, ratchet-wheel on main mandril of lathe, to give motion to gun on the centres while planing be-tween the trunnions. D, eccentric connection to give motion to feed-hand. B, bevel-geer to work planing-head and feed-hand. A, pulleys on bevel Fig. 2516. Back (sliding) head for turning or boring. k, lever for throwing head out of geer. I, feed-screw. n, gibs. Fig. 2520. h, lever for throwing slide-rest out of geer. f, feed-screw. m, half-rest for feed-screw. ii n, gibs on slide-rest. Fig. 2521. d, pulley for drawing boring-bar. e, ratchet-wheel. /, lever on ratchet-wheel, for boring.
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Keywords: ., bookcentury1800, booksubjectmechanicalengineering, bookyear1861
