Open end wrench

Details Open end wrench Open end wrench

1980-09-12

1982-09-14

Smith, James G.

Tools

Wrench, screwdriver, or driver therefor

Plural pivoted jaws and handle-lever

B25B 1328

Patent

active

043489214

ABSTRACT:
An open ended wrench is disclosed for engaging a nut or other object when moved in one direction and disengaging from the nut or object when moved in an opposite direction. The wrench consists of a first and a second jaw mounted on a handle and an adjusting member within the wrench for moving each of the jaws towards one another when the handle is moved in one direction and for moving each of the jaws away from one another when the handle is moved in another direction. The handle is operatively associated with each of the jaws through the adjusting member.

REFERENCES:
patent: 923942 (1908-07-01), Brockway
patent: 2353901 (1944-07-01), Jires
patent: 2508604 (1950-05-01), Greer et al.
patent: 2594154 (1952-04-01), Greer et al.
patent: 2719447 (1955-10-01), Ford
patent: 2787180 (1957-04-01), Fish
patent: 3535960 (1970-10-01), Borries
patent: 3620105 (1971-11-01), Batton
patent: 3979977 (1976-09-01), Dorma
Wrench described as self-adjuster Popular Science Sep. 19, 1980 offered by Lynwood Distributing, Drawer T, Midland Park, NJ 07432.

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