Section 87.—THROWING IN AND OUT OF GEAR.
(See also [p. 192].)
[2503]. Presser foot for sewing machines, or for intermittent holding of any flat articles; lifted out of gear, and held by the feather end resting on the sliding socket.
[2504]. Belt shifting bar, adjustable every way.
[2505]. Revolving worm for operating a belt shifting bar, locking it at the same time.
[2506]. Worm gear may be thrown out or in by moving the wheel sideways on its shaft.
[2507]. Bolt and slot device for gearing two wheels together on one shaft, used on lathe headstocks.
[2508]. Half nut for throwing out of gear, with screw, and fitted with spring to take up the wear of the nut.
[2509]. Sliding shaft for winch or other gear, to shift the pinion out of gear or change to another speed (as in [No. 2293]).
[2510]. Another method of locking a sliding shaft in or out of gear.