Pipe wrench

Details Pipe wrench Pipe wrench

1984-11-02

1985-12-31

Jones, Jr., James L.

Tools

Wrench, screwdriver, or driver therefor

Slidable jaw adjustments

81133, B25B 1322

Patent

active

045613303

ABSTRACT:
A wrench suitable for pipe work which includes a handle having two parallel arms, and a body pivotably mounted on the arms by means of a driving gear which passes through two holes provided on the arms, the holes are formed with internal teeth, a rack bar which includes a movable jaw at the forward end thereof and which has a portion slidably received in the body, wherein the driving gear is meshed with the teeth of the rack bar and which has the axis thereof transverse to the handle, when rotating the driving gear, the rack bar moves toward or away from a fixed jaw attached on the body, there are two sector pinions acting as the detent members mounted on the driving gear and operated cooperatively with internal teeth for permitting the uni-directional rotation of the driving gear with respect to the handle.

REFERENCES:
patent: 1023001 (1912-04-01), Bennetch
patent: 1094221 (1914-04-01), Kuhns
patent: 3171307 (1965-03-01), Jamal
patent: 4452108 (1984-06-01), Irwin et al.

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