Tools – Wrench – screwdriver – or driver therefor – Machine
Patent
1992-09-04
1995-02-14
Meislin, D. S.
Tools
Wrench, screwdriver, or driver therefor
Machine
81 581, B25B 1346
Patent
active
053884787
ABSTRACT:
A torque wrench in which large torquing forces are applied to a workpiece by a ratchet and pawl mechanism allows the workpiece to be pretightened before final tightening by the wrench and includes an adapter assembly for transmitting torquing forces delivered independently of the pawl to the ratchet. The adapter assembly, which may be adapted for use with any ratcheting torque wrench, comprises an adapter member which is interlockingly received at one end within an axial opening of a ratchet gear and which includes at its other end a central aperture, a male extension, or a combination of the two for coupling to an external torque transmitting device such as an open ended wrench or an air powered wrench. Additional transition members are optionally provided to adapt the adapter member for use with commercially available torque transmitting devices. By allowing a threaded fastener or other workpiece to be pretightened, the cumbersome process of removing and reinstailing the torque wrench when untightened fasteners are encountered is avoided.
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Barnes Group Inc.
Meislin D. S.
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