US Patent: 499,742
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Flange Wrench
Improvement in Adjustable Flange-Wrenches
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Patentee:
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| Julius W. Kellam (exact or similar names) - Brooklyn, NY |
| USPTO Classifications: |
| 81/94 |
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Patent Dates:
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| Applied: |
Mar. 02, 1893 |
| Granted: |
Jun. 20, 1893 |
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Patent Pictures:
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Julius W. Kellam patent June 20, 1893 |
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Stan Schulz
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Description: |
| This is a fixed-size version of Kellam's adjustable size flange wrench (patent no. 487,331). In this version, the gripping surface of the movable jaw is a roller cam which can be positioned for tightening or loosening. The jaw is moved into engagement by a cam lever. The "V" shaped jaw is firmly fixed to the handle rather than attached by a pivot bolt.
The KELLAM FLANGE WRENCH produced by Eaton, Cole & Burnham used a screw-adjusting slide rather than a cam lever for the grip tightener, and a second screw-adjustment to set the size. |
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