[2193]. Crosshead side guide for engine or pump, plan view.
Section 40.—GEARING, VARIOUS DEVICES IN.
(See also [p. 92].)
[2194]. Turn-over gear for reversing a stamp, table or platen by rack and pinion.
[2195]. Double driving motion by belt for two saws, cutters, drills, &c., so that either may be put in work at various points in a half circle of the radius of the arm.
[2196]. Sun and planet gear. A is a fixed wheel, B is keyed to the barrel shaft, C and D are cast together and run loose on a stud on the crank arm.
[2197]. Two-tooth pinion gear.
[2198]. Cam spur gear, to give similar variable movements to those given by cams.
[2199]. Motion to vary the angle of a screw propeller blade, a windmill, feathering wheel, &c., by bevel gear and a central shaft.