Metal deforming – By use of non-deforming work-gripping clamp and relatively... – Plural or complex apparatus
Patent
1986-03-14
1987-10-27
Crane, Daniel C.
Metal deforming
By use of non-deforming work-gripping clamp and relatively...
Plural or complex apparatus
72217, 72384, 72403, 72702, B21D 7022
Patent
active
047020970
ABSTRACT:
In order to form materials (18) in a cold state automatically and reproduceably a bending machine (10) is proposed, comprising at least two bending carriages (14, 16), which interact with the material so that one of the bending carriages (14 or 16) constantly holds the material (18) immoveable when the other bending carriage (16 or 14) is bending the material (12) or is being moved along it.
REFERENCES:
patent: 1546147 (1925-07-01), Skinner
patent: 1769570 (1930-07-01), Groehn et al.
patent: 3568300 (1971-03-01), Zidell
patent: 4012933 (1977-03-01), Porter
patent: 4479373 (1984-10-01), Montorfano et al.
Bierman Jordan B.
Crane Daniel C.
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