Metal deforming – With means to drive tool – With means to permit tool positioning
Patent
1991-04-15
1992-04-07
Larson, Lowell A.
Metal deforming
With means to drive tool
With means to permit tool positioning
72705, B21D 112
Patent
active
051016540
ABSTRACT:
A frame pulling apparatus for applying multiple pulling forces to a damaged structure such as an automobile, and including two or more pulling stations slidably mounted on, and adjustably positionable between a pair of vertically extending parallel support posts extending upwardly from a base. Each of the pulling stations includes a hydraulically actuated cylinder disposed within a telescopically extending power post and a load chain directed about a pulley at the end of the power posts, wherein actuation of the cylinders causes telescopic extension of the power posts thereby applying a pulling force equally on two independently extending legs of the load chain, the legs being separately attached to the damaged structure.
REFERENCES:
patent: 3149660 (1964-09-01), Smith
patent: 3543561 (1970-12-01), Taber
patent: 3698230 (1972-10-01), Buske
patent: 3835692 (1974-09-01), Hoffman
patent: 4712417 (1987-12-01), Jarman et al.
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