. Illustrated catalogue and general description of improved machine tools for working metal . of screw-cutting and turning feeds, instantly changeable from one to theother, when both are in gear with spindle. Longitudinal feed and screw-cuttingfeed cannot be engaged at the same time. Turning-feed stopped and started in-stantly by positive clutch. Direction of turning-feed controlled by lever onsaddle. Compound swivelling-rest, with power cross-feed. Lead screw, used forscrew-cutting only, supported throughout its length, and protected from swing over bed, 36,
. Illustrated catalogue and general description of improved machine tools for working metal . of screw-cutting and turning feeds, instantly changeable from one to theother, when both are in gear with spindle. Longitudinal feed and screw-cuttingfeed cannot be engaged at the same time. Turning-feed stopped and started in-stantly by positive clutch. Direction of turning-feed controlled by lever onsaddle. Compound swivelling-rest, with power cross-feed. Lead screw, used forscrew-cutting only, supported throughout its length, and protected from swing over bed, 36, over slide-rest, 28 diameter. Improved frictiondiscs, giving instantly any feed required between limits. Largest lift of cone-pulley, 28. Width of belt, 3J/3. Complete with countershaft, wrenches, fullset of change gears, water-can, and steady-rest. Countershaft pulleys, 26diameter for 4 open and cross-belts, and should make 80 and 160 revolutions perminute. Follotc-resi and taper attach 111 en/s, if required, extra. 88 Wm. Sellers & Co., Incorporated, Philadelphia, Pa. Plate No. 42 LATHE.—Triple-Geared, Turning and Screw-Cutting Feeds. Flat-top shear, with vertical guiding surfaces. Poppet-head lined by underV clamp. Concentric hold-fast for poppet-spindle, clamping spindle at both endsof bearing. Independent screw-cutting and turning feeds, instantly changeablefrom one to the other, when both are in gear with spindle. Longitudinal feedand screw-cutting feed cannot be engaged at the same time. Turning-feed stop-ped and started instantly by positive clutch. Direction of turning-feed controlledby lever on saddle. Compound swivelling slide-rest, with power cross screw, used for screw-cutting only, supported throughout its entire lengthand protected from chips. Maximum swing over bed, 42 diameter. Improvedfriction discs, giving instantly any feed required between limits. Largest lift ofcone pulley, 28. Width of belt, 3>^. Complete with countershaft, wrenches,fu
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Keywords: ., bookcentury1800, bookdecade1890, bookidillu, booksubjectmachinery
