Ratchet-action end wrench without ratchet

Details Ratchet-action end wrench without ratchet Ratchet-action end wrench without ratchet

1979-07-16

1981-03-17

Smith, James G.

Tools

Wrench, screwdriver, or driver therefor

Sliding jaw face

B25B 1312

Patent

active

042559901

ABSTRACT:
This hand-operated, flat, open end wrench simulates the action of a ratchet wrench by causing the corners of a bolt head or nut to function analogously to the teeth of a ratchet. A single moving part, spring-loaded against or in close proximity to the bolt head or nut tangentially, aids in jamming or gripping the bolt head or nut and permits gripping a hexagonal head or nut either by opposite flats or by opposite vertices, whereby rotation in 1/12-turn increments is possible.

REFERENCES:
patent: 2907243 (1959-10-01), MacLean
patent: 3023654 (1962-03-01), Stambaugh et al.
patent: 3079820 (1963-03-01), Vantchoura

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