B - Operations – Transporting – 21 – D
Patent
B - Operations, Transporting
21
D
153/33
B21D 1/02 (2006.01) B21D 3/02 (2006.01) B21D 5/08 (2006.01) B21D 7/06 (2006.01) B21D 11/10 (2006.01)
Patent
CA 1187389
Abstract of the Disclosure One embodiment of an invention providing an improve- ment upon a U-bolt bender is disclosed. The bender has a clamp for clamping a workpiece thereto and a slide for advancing the workpiece along a path. The improvement comprises a die and biasing means for urging an intermediate portion of the workpiece against a forward surface of the die and for urging end portions of the workpiece respectively against sides of the die adjacent to the forward surface. The bender carries the biasing means and the slide carries the die and brings the workpiece into engage- ment with the biasing means by advancing the workpiece along the path. The sides of the die converge to- gether and extend away from the forward surface such that as the slide brings the workpiece into engage- ment with the biasing means, the biasing means urges the intermediate portion of the workpiece against the forward surface and urges the end portions of the workpiece respectively against the sides of the die, the slide meanwhile causing the clamp to clamp the workpiece to the die. The workpiece initially con- forms to the shape of the die; and is made of a re- silient material; and upon being released from the die and the biasing means, has end portions which spread apart slightly. The sides of the die are oriented such that the workpiece, upon being released from the die and the biasing means, has end portions which are in substantially parallel orientation, one end portion to the other.
416595
Smart & Biggar
Vale Industries Inc.
LandOfFree
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