Tools – Tool jaw – Jaw-actuating means
Patent
1992-12-15
1993-08-10
Meislin, D. S.
Tools
Tool jaw
Jaw-actuating means
81370, B25B 712
Patent
active
052338932
ABSTRACT:
Plier type toggle wrenches may be divided into two broad types: the more common type in which the tool is caused to remain in its gripping mode when a portion of the toggle crosses over, or beyond the toggle center line; and, the less common type in which the toggle does not cross the toggle center line when the tool is in the gripping mode. The second type will not remain in the gripping mode unless the user applies continuous hand pressure, or, a releasable latching means is used to prevent the tool from opening. The present invention relates to the second type of toggle wrenches, and, in the preferred species of the invention, the latching means is in the nature of a sear, the elements of which engage in locked position when the tool is gripping a workpiece. The sear cannot be released to permit the wrench from disengaging the workpiece until the user again squeezes the handles of the tool and applies sufficient additional squeezing pressure while simultaneously, and with the same hand, releases a safety which would otherwise prevent the sear from disengaging. When the sear is disengaged, the user, by relaxing the squeezing pressure on the handles of the tool, may gradually permit the tool to assume its free unloaded position, and thereby prevent the tool from flying open and possibly causing an injury.
Hay Louis E.
Meislin D. S.
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