Implements or apparatus for applying pushing or pulling force – Portable implements or apparatus for tensioning flexible... – Including either force transmitting – hand held and operated...
Patent
1983-04-01
1984-11-20
Levy, Stuart S.
Implements or apparatus for applying pushing or pulling force
Portable implements or apparatus for tensioning flexible...
Including either force transmitting, hand held and operated...
254384, 226112, 24132WL, B66D 302
Patent
active
044835175
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.
REFERENCES:
patent: 1979555 (1934-11-01), Jakoubek
patent: 3824653 (1974-07-01), Sholler
patent: 3911535 (1975-10-01), Mauron
Drucker William A.
Hail III Joseph J.
Levy Stuart S.
Secalt S.A.
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