US Patent: 2,679,177 - Precision vise of the double-acting type


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US Patent: 2,679,177

Precision vise of the double-acting type

Patentee:

Franklin Gahl Gepfert (exact or similar names) - Cleveland, OH

USPTO Classifications:

269/145, 269/227, 269/30, 269/33, 269/35, 92/68

Tool Categories:

work holding : vises : machinist vises

Assignees:

None

Manufacturer:

Heinrich Tools Inc. - Racine, WI

Witnesses:

Unknown

Patent Dates:
Applied:	May 13, 1953
Granted:	May 25, 1954

Patent Pictures:

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Vintage Machinery entry for Heinrich Co.

Description:

The invention is a hydraulic or pneumatic vise where each jaw is moved by its own cylinder. The action of the two jaws are cross-linked so that they move in a synchronized way.