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US Patent: 393,583
Brake for Bending Sheet Metal
Patentee:
James M. Robinson - Cincinnati, OH

USPTO Classifications:
72/319

Tool Categories:
metalworking machines : sheet metal : sheet metal brakes

Assignees:
None

Manufacturer:
J. M. Robinson Mfg. Co. - Cincinnati, OH

Witnesses:
Ed. R. Hill
J. Wm. Strehill
Walter Chamberlain

Patent Dates:
Applied: Jun. 14, 1883
Granted: Nov. 27, 1888

Patent Pictures: [ 1 | 2 ]
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"Vintage Machinery" entry for J. M. Robinson Mfg. Co.
Description:
Claims:

1. In a machine for bending metal sheets, the combination of a base or supporting-jaw and a movable clamping-jaw, the latter being connected to the former by a pivotal connection, said connection being constructed for 1 vertical adjustment, substantially as and for the purposes specified.

2. The jaw N and base or bed piece A, provided with pivot-arm d', in combination with the clamping-jaw M and end piece, B, provided with a vertically-adjustable box, b, the latter being arranged to turn on the said pivot arm d', substantially as and for the purposes specified.

3. The base or bed A, having rearward extension C, and sliding blocks D, secured thereto and longitudinally adjustable, in combination with the pivot-arm d', clamping jaw M, end pieces, B, each having a yoke, B', in each of which yokes is a vertically-adjustable box, b, for receiving the pivot-arm, said boxes being retained in the desired position by adjusting-screws b' b², substantially as and for the purposes specified.

4. In a brake-machine, the combination of the end piece, B, having yoke B', box b, screws 1) b pivot arm d, sliding support D, bed-piece A, having extensions C C', screw D', and screw d, substantially as and for the purposes specified.

5. In a brake machine, the combination of the end piece, B, having yoke B', box b, screws b' b², pivot-arm d', sliding support D, bed-piece A, having extensions C C', screw D', screw d', shaft F, cam F', and set screw or screws f, substantially as and for the purposes specified.

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