Metal deforming – By or with work-constrainer and/or manipulated work-forcer
Patent
1980-01-21
1982-10-12
Larson, Lowell A.
Metal deforming
By or with work-constrainer and/or manipulated work-forcer
72705, B21D 112
Patent
active
043532411
ABSTRACT:
An apparatus for repairing and straightening vehicles includes upper and lower tracks supported in vertically spaced relation by a frame, each track including a pair of latterally spaced apart and longitudinally extended side members. A plurality of tower assemblies are supported on the upper and lower tracks for longitudinal movement therealong. Each tower assembly includes a flexible tension member adapted for securement to a vehicle positioned between the side members and a power source for pulling the tension member toward the tower assembly to thereby straighten the vehicle. The track supporting frame includes a superstructure above the upper track and a plurality of upper pulleys adjustably mounted on the superstructure whereby each tension member may be trained about one of the upper pulleys for exerting a pulling force on the vehicle from an elevation above the upper track. The tracks may be generally U-shaped so as to be open at the rearward end to provide for the entry of a vehicle into position between the side members. Each tower assembly may be secured against longitudinal movement along the tracks by a bearing surface connected thereto adjacent the upper track. The bearing surface is adapted for bearing engagement against the upper track in response to the application of tension to the tension member.
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