US Patent: 626,401
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| Pipe Wrench
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Patentee:
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| S. Lloyd Wiegand (exact or similar names) - Philadelphia, PA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jul. 27, 1898 |
| Granted: |
Jun. 06, 1899 |
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Patent Pictures:
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S. Lloyd Wiegand patent June 6, 1899 |
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Stan Schulz
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Description: |
| The basic principle of segments of an arc forming the gripping surface for a pipe wrench appears in earlier patents such as the March 6, 1888 Homer Parmelee patent 379,123.
In this patent the focus is on alternate forms for connecting the arc segments, means to connect the segments to the handle, and alternate forms for spring latches to hold the gripping segements closed around the pipe. The patent notes sets of gripping sections to fit a range of pipe sizes. The handle is "trough shaped," with the spring latch contained within the "trough." |
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