Adjustable ratchet pliers

Tools – Tool jaw – Adjustable relationship between jaw

Patent

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Details

81411, B25B 704

Patent

active

042690897

ABSTRACT:
A rapidly adjustable ratchet pliers having a first and second jaw member integral with a first and second handle member that pivotally cooperate to grasp a workpiece between the jaw members. The pliers also include a ratchet dog pivotally disposed in a slot of the first jaw member. The slot includes a surface defining tooth cavities and a smooth surface opposite thereof. The ratchet dog includes a biasing means that slidably and continuously contacts the smooth surface and a tooth normally biased into engagement with the tooth cavity surface.
An abutment projects from a surface of the second jaw member into the slot whereby outward pivotal movement of the second handle member causes the abutment to contact a shelf of the ratchet dog and thereby release the dog from its biased engagement with the tooth cavity surface of the slot. Thereafter, the first jaw member may be adjusted relative to the second jaw member. Rapid closing of the jaw members is easily accomplished by simply shifting the second jaw member in a direction parallel with the slot in the first jaw member whereby the ratchet dog tooth freely ratchets over the slot teeth to a preselected location.

REFERENCES:
patent: 1565210 (1925-12-01), Seiber
patent: 2361607 (1944-10-01), Daniels
patent: 2704471 (1955-03-01), Hendrickson

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