Pipe wrench jaw

Details Pipe wrench jaw Pipe wrench jaw

1977-03-17

1978-01-31

Smith, Al Lawrence

Tools

Wrench, screwdriver, or driver therefor

Attachment, or including adjunct or replaceable portion

81186, B25B 1358

Patent

active

040709337

ABSTRACT:
A pipe wrench jaw adapted to be utilized with a wrench having a pair of jaw members adapted to be moved towards and away from each other. The replaceable jaw comprises a housing member having an upper and lower end spaced from each other and a pair of sides adapted to fit across the width of a jaw member of the wrench with a plurality of grooves extending on the upper end between the sides. Each groove has a front and rear wall extending in spaced relationship to each other and a gripping member is pivotably mounted in each groove between the sides and adapted for angular movement between a forward position and a rearward position between the front and rear wall respectively. Each gripping member includes a plurality of transversely extending teeth formed in an arcuate path having a front end and a rear end with the front end having a greater radius than the rear end so as to obtain a gripping engagement with a pipe or the like contained therebetween with the gripping member adapted to rotate with the movement of the wrench to engage the pipe.

REFERENCES:
patent: 2060189 (1936-11-01), Foster
patent: 2526167 (1950-10-01), Sparks
patent: 2528814 (1950-11-01), Boyer
patent: 2584353 (1952-02-01), Keiser

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