Adjustable leverage pry bar

Details Adjustable leverage pry bar Adjustable leverage pry bar

1976-06-29

1977-08-16

Smith, Al Lawrence

Implements or apparatus for applying pushing or pulling force

Nail extractor type

Single throw lever

B66F 300

Patent

active

040422100

ABSTRACT:
An adjustable leverage pry tool having a lever including a handle portion and a pry portion connected to the handle portion and in the form of an arcuate plate provided with a claw. Mounted on the pry portion is a fulcrum member which is movable along the arcuate plate between the claw and the handle portion for varying the angle and amount of leverage exerted by the lever. The cross section of the fulcrum member is elliptical and has its longest axis disposed at an acute angle with respect to the arcuate plate in order to enhance the leverage of the tool.

REFERENCES:
patent: 119770 (1871-10-01), Ives
patent: 206902 (1878-08-01), Scribner
patent: 1890273 (1932-12-01), Wells
patent: 2890018 (1959-06-01), Johnson
patent: 2894720 (1959-07-01), Bennett
patent: 2907106 (1959-10-01), Lockwood
patent: 3029502 (1962-04-01), Middaugh
patent: 3134574 (1969-05-01), Reuterfors
patent: 3836119 (1974-09-01), Saucier et al.

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