Utility impact wrench

Details Utility impact wrench Utility impact wrench

1975-05-15

1976-04-13

Jones, Jr., James L.

Tool driving or impacting

Impacting devices

With anvil arranged to transmit torsional impact to tool

81 523, B25D 1500

Patent

active

039498166

ABSTRACT:
An impact wrench is described as having a short spindle with means on one end to engage a threaded object to be turned, such as a bolt securing an automobile wheel in position, with a moment arm pivotally mounted at the other end of the spindle. A linear weight guide is rigidly mounted on this arm at a right angle thereto at the end opposite the pivot. A weight embraces the guide and is easily slidable thereon so that the spindle-mounted wrench means may be engaged with the object to be turned, after which the moment arm may be swung about the pivot connection to a position where the weight slides along the guide, after which stop means at either end of the guide will cause the weight to stop suddenly responsive to resistance of the threaded object so as to apply an impact to the object at right angles to the axis of the threads.

REFERENCES:
patent: 2793551 (1957-05-01), Ford
patent: 2882772 (1959-04-01), Potter
patent: 3157074 (1964-11-01), Durkee
patent: 3158050 (1964-11-01), Shandel

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