Metal deforming – By use of roller or roller-like tool-element – Comprising tool movable relative to stationary work-portion...
Patent
1995-06-15
1997-05-06
Crane, Daniel C.
Metal deforming
By use of roller or roller-like tool-element
Comprising tool movable relative to stationary work-portion...
72217, 72321, B21D 7024
Patent
active
056260458
ABSTRACT:
A hand operated bending apparatus uses a lever arm which acts through a compound lever to increase the applied force. A pin, which mates with a number of holes at various distances along the compound lever linkage, permits changing the lever ratio readily. A bar extending outward from a forming die is slideably enclosed by a slide lock, which can wedge against the bar to lock the slide lock to the slide bar. The slide lock provides the pivot point for the operating lever arm to permit resetting the apparatus after a bend is made to allow bending metal stock by a number of successive steps with little time penalty.
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