Metal deforming – By use of non-deforming work-gripping clamp and relatively... – Clamp structure constitutes sole initial metal-deforming...
Patent
1978-11-27
1980-12-23
Mehr, Milton S.
Metal deforming
By use of non-deforming work-gripping clamp and relatively...
Clamp structure constitutes sole initial metal-deforming...
B21D 1120
Patent
active
042402794
ABSTRACT:
A brake for bending sheet metal comprising a pair of spaced base rails and a plurality of C-shaped members positioned on the base rails at longitudinally spaced points. Each C-shaped member comprises a lower arm fixed to the rails and an upper arm spaced from and overlying the lower arm. A first member is fixed on the lower arms of the C-shaped members and has a clamping surface. An anvil member is adapted to be locked on the first member to clamp a piece of sheet metal between the anvil member and the clamping surface of the first member. A second member having a bending surface is pivoted to the first member. The anvil member is generally L-shaped with a horizontal portion and a vertical portion. The vertical portion has longitudinally spaced notches therein through which the upper arm of each C-shaped member extends. The anvil member is resiliently mounted on the upper arms. An abutting portion is provided on the upper arm of each C-shaped member and is adapted to be contacted by the vertical portion of the anvil member and thereby minimize any tendency for rotation of the anvil member when the second bending member is swung to bend a piece of sheet metal or the like clamped between the anvil member and the clamping surface of the first member.
REFERENCES:
patent: 3147791 (1964-09-01), Raven et al.
patent: 3559444 (1971-02-01), Blazey et al.
patent: 4093841 (1978-06-01), Chambers, Jr.
Mehr Milton S.
Tapco Products Company Inc.
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