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US Patent: 3,791,012
Traction Applying Tool
Patentee:
Arthur S. Jenkin (exact or similar names) - Peapack, NJ

USPTO Classifications:
173/91, 29/254, 81/27, 81/463, D8/52

Tool Categories:
wrenches : pliers type wrenches : locking pliers

Assignees:
Komline-Sanderson Engineering Corp. - Peapack, NJ

Manufacturer:
Not known to have been produced

Witnesses:
none listed

Patent Dates:
Applied: May 08, 1972
Granted: Feb. 12, 1974

Patent Pictures:
USPTO (New site tip)
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Report data errors or omissions to steward Stan Schulz
Description:
Abstract

A workpiece to which traction is to be applied is firmly held by a gripping device to which is anchored one end of a rectilinear guide having a free end directed away from the workpiece. An impact member of high inertia is slidably disposed on the guide for rapid movement toward an impacting engagement with an abutment carried by the guide adjacent its free end, whereby the resulting tensional forces in the form of a sudden impulse are transmitted through the gripping device to the workpiece for use, for instance, in withdrawing the workpiece from a member in which it is firmly anchored or embedded. The impulse applying means is combined with the gripping device in such a manner to avoid transmitting the impulses to the workpiece through the toggle linkage or other locking means which secures the jaws of the device in gripping engagement with the workpiece, whereby to avoid loosening of the jaws and/or damage to the said locking means.

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