Tools – Tool jaw – Jaw-actuating means
Patent
1994-09-30
1995-07-25
Smith, James G.
Tools
Tool jaw
Jaw-actuating means
81370, 81383, 294 22, B25B 712
Patent
active
054352142
ABSTRACT:
A plier-type locking wrench has an elongated body having a pair of jaws at one end and a pair of handles at an opposite end. The pair of jaws includes a fixed jaw and a movable jaw. The pair of handles includes a fixed handle and a movable handle. A threaded member engages the fixed handle. An operating crank is pivotally attached to the body adjacent the fixed handle. The movable jaw is connected to the operating crank by a connecting rod. The movable handle is pivotally connected to the operating crank. A locking lever has a first end pivotally connected to the movable handle and a second end cammingly engageable with the threaded member. The movable handle is displacable relative to the fixed handle to displace the operating crank which, in turn, displaces the connecting rod and the movable jaw. The locking lever permits the movable jaw to be locked in a desire position relative to the fixed jaw. The threaded member is adjustable to adjust the locking position of the pivotal jaw. A release lever releases the movable jaw from its locked position.
REFERENCES:
patent: 1301185 (1919-04-01), Sorensen
patent: 1519938 (1924-12-01), Smith
patent: 1532815 (1925-04-01), Hahn
patent: 2327368 (1943-08-01), Olson
patent: 3600936 (1971-08-01), Baldwin, Jr.
patent: 3654755 (1972-04-01), Bell
patent: 4289050 (1981-09-01), Scafaro
patent: 4930825 (1990-06-01), Dearman
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