US Patent: 783,502 - Clamp or vise


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US Patent: 783,502

Clamp or vise

Patentees:

William Black (exact or similar names) - Mendota, IL

John Black (exact or similar names) - Mendota, IL

USPTO Classifications:

269/165, 269/222, 269/238

Tool Categories:

work holding : clamps : hand screws

Assignees:

None

Manufacturer:

Black Brothers Machinery Co. - Chicago, IL

Witnesses:

Dan C. Haskell

George H. Madden

Patent Dates:
Applied:	Feb. 09, 1903
Granted:	Feb. 28, 1905

Patent Pictures: [ 1 | 2 | 3 | 4 ]

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"Vintage Machinery" entry for Black Bros. Co.

Description:

An example of this clamp has been seen. The piece is marked, "PAT APLD FOR" along with the Black Bros. Mchy Co, Mendota, ILL. It is fairly close to the patent drawing except for the addition of a tilting jaw face.