Adjustable wrench

Tools – Wrench – screwdriver – or driver therefor – Handle clutched to head

Patent

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Details

81 584, 81128, B25B 1346

Patent

active

053056701

ABSTRACT:
An adjustable ratchet wrench has a housing carried by a handle. The housing has a generally cylindrical chamber which carries a control member in turn supports the jaws. The control member is connected to the handle by a ratchet assembly whose setting determines the direction in which the tool may be used to turn a workpiece. The housing also carries a cam disk that engages the jaws and opens and closes them depending upon the direction in which it is rotated. A locking mechanism is provided to prevent the jaws from opening after they have been adjusted to grip a particular workpiece in response to reactive forces on the jaws. The wrench may have a power handle to drive the workpiece.

REFERENCES:
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patent: 4524649 (1985-06-01), Diaz et al.
patent: 4722252 (1988-02-01), Fulcher et al.
"Instruction Manual" Cordless Ratchet 6080, Black & Decker, 1988.
"Skil Operating Guide Model 2238 Cordless Power Wrench", Skil Corporation.

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