Friction drive wrench

Details Friction drive wrench Friction drive wrench

1975-05-27

1976-07-20

Jones, Jr., James L.

Tools

Wrench, screwdriver, or driver therefor

Handle clutched to head

B25B 1346

Patent

active

039699625

ABSTRACT:
A wrench includes an elongated shank, an axial cavity in one end of the shank, a radially split annular driving member formed with radial tangs fitting into the axial cavity in the shank, a cylindrical head mounted within the driving member and frictionally gripped thereby, and manually actuable means whereby the grip is increased during forward movement of the shank in a selected direction and released during back-up movement of the shank.

REFERENCES:
patent: 2735324 (1956-02-01), Goldwater et al.
patent: 2766648 (1956-10-01), Jazwieck
patent: 2824476 (1958-02-01), Wilson
patent: 3656376 (1972-04-01), Campbell

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