[1196]. Whitworth’s motion. The pin A in the wheel B travels eccentrically in the crank disc, which is eccentric to the fixed boss on which the driving wheel B runs, so that the radius of the driving motion of the pin varies as it revolves and it travels up and down the slot in the disc.
[1197]. By two belts, one open and one crossed, and driving drums of different diameters.
[1198]. By two belts, one open and one crossed, but driven by the same drum. The middle pulley is loose, the left hand pulley is fast to the spur wheel, and the right hand pulley to the spur pinion.
Segment gear, gearing alternately with the internal ring and the central pinion. See [No. 724].
See [Section 74].
Section 66.—ROPE GEARING.
[1199]. V-grooved pulley rim for round rope.
[1200]. Multiple pulley rim, used for rope driving in mills, &c.
[1201]. Single V-grooved pulley for hand ropes.