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.
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[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.