B - Operations – Transporting – 60 – J
Patent
B - Operations, Transporting
60
J
296/100
B60J 11/00 (2006.01) B60J 7/08 (2006.01)
Patent
CA 1243062
- 26 - "TRUCK BOX TARP ARRANGEMENT" ABSTRACT OF THE DISCLOSURE A tarp arrangement for covering a truck box includes one edge adjustably attached to an edge of the truck box by a plurality of I-bolts adjusted within a flange along the side of the truck box. The other edge of the tarp is attached to a roller leaving a part of the roller bare so that the part can drop over the other side of the truck box just into a plurality of semi-circular half bearings defined by flat plates at right angles to the side of the truck box. The bare roller thus can rotate in the half bearings to tighten the tarp. Move- ment of the tarp is obtained by guide cables rolled up on to the roller in drum sections defined by flanges at the ends of the roller. Each cable is attached to a spring mounted in a vertical tube to take up changes in length and to tension the tarp. In one arrangement the roller is driven by a motor co-axial with the shaft with torque from the motor being communicated through a housing to a track along which the housing runs. The housing includes a torque bar which can be bent in dependence upon the amount of torque with the degree of bending being mea- sured by limit switches which act to halt the motor.
478664
Ade & Company
Hawken Daniel W.
LandOfFree
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