Chapter CXXXVI: Section 62: Pawl and Ratchet Motions

(_See also p. 140._)

=2366. Friction grip pawl,= as applied to a wheel, may be used also for a rod.

=2367. Ratchet brace,= or feed lever, in which the pawl is a fixed tooth, and the lever is slotted to allow the pawl to clear the teeth on the back stroke.

=2368. Ratchet brace,= with slotted pawl.

=2369. Ratchet brace,= with friction grip pawl.

=2370. Ratchet brace,= without pawl. The handle is hinged to the socket arm, and has a tooth gearing with the ratchet, and thrown in and out by the movement of the handle.

=2371. Double-acting pawls and lever.=

=2372. Internal hooked pawl.=

=2373. Internal strut-action pawl.=

=2374. Gravity pawl and crown ratchet.=

=2375. Ratchet rack,= crank and connecting rod, intermittent movement,--a detent may be added to return the rack.

=2376. Internal spring pawls= for a ratchet brace.

=2377. Rocking escapement.=

=2378. Rocking escapement.=

=2379 to 2384. Forms of locked intermittent movements.=

=2385 & 2386. Intermittent rotary movements= on spindles at right angles.