US Patent: 437,403
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| Clamp
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Patentees:
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| Arnold Nacke (exact or similar names) - Philadelphia, PA |
| Albert Brinkmann (exact or similar names) - Philadelphia, PA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jan. 16, 1890 |
| Granted: |
Sep. 30, 1890 |
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Patent Pictures:
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Arnold Nacke and Albert Brinkmann patent September 30, 1890 |
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Stan Schulz
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Description: |
| The movable jaw has sliding plates that bear against the hank of the clamp. The base of the sliding jaw has a thumb screw which hold it in place, and by lever action also tightens the grip of the clamp. |
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