Tools – Wrench – screwdriver – or driver therefor
Patent
1977-02-17
1978-05-02
Jones, Jr., James L.
Tools
Wrench, screwdriver, or driver therefor
81 5729, 81 581, 64 30R, 64 30C, B25B 2314
Patent
active
040868290
ABSTRACT:
A speed handle ratchet which can be used in either one of two distinct operating modes. The device includes an elongated handle having first and second ends, a head on one end of the handle, a hand grip on the other end of the handle, drive means connecting the hand grip to the head, ratchet means at the one end of the handle, and coupling means at the other end of the handle. The head is mounted for rotation about a first axis transverse to the handle and the hand grip is mounted for rotation about a second axis parallel to the handle. Rotation of the head in response to rotation of the hand grip is provided by the drive means. The handle is operatively joined to the head for rotation of the head in response to oscillation of the handle by the ratchet means, and the coupling means operatively joins the hand grip to the drive means. By utilizing this combination of elements, the coupling means transmits rotation of the hand grip through the drive means into rotation of the head for a first operating mode below a selected torque load level and prevents rotation of the hand grip by the drive means during rotation of the head in response to oscillation of the handle in a second operating mode above the selected torque load level.
REFERENCES:
patent: 1527757 (1925-02-01), Street
patent: 2797564 (1957-07-01), Bonneau et al.
patent: 3707893 (1973-01-01), Hofman
patent: 3733936 (1973-05-01), Flynn
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