The engineer's sketch-book of mechanical movements, devices, appliances, contrivances and details employed in the design and construction of machinery for every purpose; (1902)
Barber, Thomas Walter. [from old catalog] · New York, Spon & Chamberlain · leaf 307
)awl. The handle is hinged to the socketarm, and has a tooth gearing with the ratchet, and thrown in andout 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. TEE ENGINEERS… … .^S- 502 THE EISGIISEERS SKETCH-BOOK. 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. Recking escapement. 2378. Ditto ditto 2379 to 2384. Forms of locked intermittent movements.…
Mechanical movements
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