Ratcheting screwdriver

Details Ratcheting screwdriver Ratcheting screwdriver

1996-12-17

1998-06-30

Smith, James G.

Tools

Wrench, screwdriver, or driver therefor

Handle clutched to head

192 431, B25B 1346

Patent

active

057717605

ABSTRACT:
A ratcheting screwdriver with a handle and a gear rotatable therein and two pawls engageable between the handle and the gear, for selective ratcheting action. A ring is rotatable on the handle for removing the pawls from engagement with the gear, and springs yieldingly bias the pawls into engagement with the gear. The ring has recesses on a circular wall for receiving portions of the pawls in pivoting the pawls into engagement with the gears.

REFERENCES:
patent: 277561 (1883-05-01), Furbish
patent: 569955 (1896-10-01), Chesney
patent: 791895 (1905-06-01), Furbish
patent: 880870 (1908-03-01), Ellrich
patent: 2193984 (1940-04-01), Rhinevault
patent: 2564356 (1951-08-01), Dianda
patent: 2627330 (1953-02-01), Gantz
patent: 2986248 (1961-05-01), Rock
patent: 3621739 (1971-11-01), Seablom
patent: 3742787 (1973-07-01), Whiteford
patent: 4290328 (1981-09-01), Clark
patent: 4466523 (1984-08-01), De Carolis
patent: 4777852 (1988-10-01), Herman

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