Metal deforming – By use of non-deforming work-gripping clamp and relatively... – Clamp structure constitutes sole initial metal-deforming...
Patent
1980-11-28
1983-02-08
Crane, Daniel C.
Metal deforming
By use of non-deforming work-gripping clamp and relatively...
Clamp structure constitutes sole initial metal-deforming...
267 36A, 269239, 269254R, B21D 504, B21D 1104
Patent
active
043721427
ABSTRACT:
A sheet bending brake comprising a frame having a fixed jaw and a movable jaw and an anvil member adjustable secured to the movable jaw. The fixed jaw has a clamping surface movable between workpiece clamping and non-clamping positions relative to the clamping surface of the fixed jaw. A bending member is hingedly connected to the fixed jaw. The movable jaw is releasably locked in workpiece clamping position by a structure that includes an oval shaped spring device member having opposed ends and opposed walls. The spring device is pivoted at one end to said movable jaw and at the other end to a handle for manipulating the jaw and comprises a pair of links each of which comprises front and rear walls. The front walls are pivoted to one another and a wedge is positioned between the rear walls so that as the thickness of workpiece varies the spring device will pivot to accommodate the different thickness.
REFERENCES:
patent: 124863 (1872-03-01), Sugden et al.
patent: 759507 (1904-05-01), Ericson et al.
patent: 1112192 (1914-09-01), Callan
patent: 1153058 (1915-09-01), Gilfillan
patent: 2321854 (1943-06-01), Rabezzana et al.
patent: 3481174 (1969-12-01), Barnack
patent: 3482427 (1969-12-01), Barnack
patent: 3663048 (1972-05-01), Zimmerle
patent: 4237716 (1980-12-01), Onisko
patent: 4321817 (1982-03-01), Barnack
Crane Daniel C.
Tapco Products Company Inc.
LandOfFree
Sheet bending brake does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Sheet bending brake, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sheet bending brake will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-43072