Metal deforming – By use of non-deforming work-gripping clamp and relatively... – By individually non-deforming clamps
Patent
1982-10-18
1985-01-29
Larson, Lowell A.
Metal deforming
By use of non-deforming work-gripping clamp and relatively...
By individually non-deforming clamps
72705, 254 93R, 92132, B21D 114, B21D 312
Patent
active
044957890
ABSTRACT:
A device for use with a hydraulic cylinder or like for straightening frame members, which converts the extension stroke of the cylinder to a pulling action. The device has a pair of interengaging outer members which are formed to define an elongate cage. The interengaging members are slidably connected to one another for relative movement in the direction of the longitudinal axis of the cage. Retaining means are mounted on the interengaging outer members, which are adapted to removably retain a hydraulic cylinder within the cage aligned along the central longitudinal axis, so that extension of the cylinder causes a contraction of the interengaging member along the direction of the longitudinal axis. The interengaging members are adapted at opposite ends for connection to a frame member to be straightened.
REFERENCES:
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patent: 2835154 (1958-05-01), Geller
patent: 2973566 (1961-03-01), Elsner
patent: 3201968 (1965-08-01), Hill
patent: 3224730 (1965-12-01), Fischler
patent: 3276237 (1966-10-01), Transue
patent: 3492855 (1970-02-01), Wylie
patent: 3499629 (1970-03-01), Horton
patent: 3769836 (1973-11-01), Heldenbrand
patent: 3893650 (1975-07-01), Turben
patent: 4461457 (1984-07-01), Steele
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