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Publication of GB582237ApublicationCriticalpatent/GB582237A/en
582,237. Stretch-bending. FIFE, J. G. (Cairns Corporation). Feb. 27, 1945, No. 4931. [Class 83 (iv)] In a stretch-bending apparatus with former 15 made of wood, concrete, plastic composition or metal and raised by a fluid cylinder 13, the work clamps comprise jaws 22, 23 shaped to the curvature of the former edge, actuated by fluid pressure operated toggles and mounted on levers 17 swung by fluid cylinders 29 to effect stretching.