Metal working – Means to assemble or disassemble – By rotation of work part
Patent
1998-03-10
2000-06-06
Bryant, David P.
Metal working
Means to assemble or disassemble
By rotation of work part
29267, 29270, 2940208, 81451, 811801, 29610014, B23P 1904
Patent
active
06070313&
ABSTRACT:
Disclosed is a locking wrench and tarpaulin replacement method for a truck with a tarpaulin assembly having a spring-biased tarpaulin roller rotatably mounted on a roller shaft and a tarpaulin attached to the roller. The locking wrench comprises a handle portion, a roller-shaft-engaging portion, and an outwardly-projecting stem for engaging a hole provided in the side of the roller when the roller-shaft-engaging portion engages the roller shaft. When the wrench is secured to the roller and the handle portion is released, the bias of the roller causes the roller and the wrench to rotate back until the handle portion comes to rest against part of the tarpaulin assembly or part of the truck, thereby preventing further rotation of the roller and allowing an operator to replace the tarpaulin. The tarpaulin replacement method comprises the steps of unrolling the tarpaulin from the roller against the spring-biasing force of the roller until the attachment of the tarpaulin to the roller is exposed, securing the roller against rotation, detaching the tarpaulin from the roller, attaching a new tarpaulin to the roller, releasing the roller, and allowing the spring-biasing force of the roller to cause the roller to rotate, thereby rolling the new tarpaulin onto the roller.
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Bryant David P.
Reid Scott W.
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