Tractive apparatus for hauling a cable, a bar or a similar member
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Nov 20, 1984
Grant Date -
N/A
app pub date -
Apr 1, 1983
filing date -
Apr 1, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The tractive apparatus has two clamping grippers each comprising a pair of jaws actuated by clamping links connected to an operating lever through connecting links pivotably mounted on this lever on each side of a pivot pin of the lever situated in the extension of a guide bar on which one of the two jaws of each gripper slides, the two grippers moving in opposite directions while being clamped in one of the two directions of movement. The guide jaw of each gripper is formed by a hollow body which serves as housing and bearing point for one of the ends of a pre-clamping spring whose other end exerts its action on a clamping link actuating the other jaw of the same gripper.
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