US Patent: 527,200
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Pipe Clamp
Clamps Adapted to Ornamental and Polished Pipes
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Patentee:
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| Charles Hall (exact or similar names) - New York, NY |
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Patent Dates:
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| Applied: |
May 18, 1894 |
| Granted: |
Oct. 09, 1894 |
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Patent Pictures:
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Charles Hall patent October 9, 1894 |
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Stan Schulz
HALL*S ELASTIC PIPE CLAMP (FLICKR)
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Description: |
| Hinged "clamp" or non-marring grip -- supplemental wrench jaws -- for soft or smooth finish pipe. The outer sides have flat surfaces. The inner faces were to be covered with rubber or leather.
These were designed to complement Hall's screw-adjust pipe and nut wrench -- see patent nos. 516,485 (3/13/1894), 521,312 (6/12/1894), 523,810 (7/31/1894), 533,295 (1/29/1895), and 586,738 (7/20/1897).
The clamps were advertised in conjunction with Hall's wrenches.
Corresponding British patent GB-189419120 was registered Oct. 9, 1894. |
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