US Patent: 2,112,840
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| Method of Making Wrenches
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Patentee:
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| Foster A. Haist (exact or similar names) - Buffalo, NY |
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Patent Dates:
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| Applied: |
May 08, 1935 |
| Granted: |
Apr. 05, 1938 |
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Patent Pictures:
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Foster A. Haist patent April 5, 1938 |
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Stan Schulz
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Description: |
| The patent describes aspects of formation of the handle, head and fixed jaw of an adjustable end wrench and emphasizes the use of a broach to form part of the guide for the movable jaw.
This broaching operation results in a "D" shaped base of the guide for the movable jaw, and corresponding portion of the movable jaw. Some CRAFTSMAN adjustable wrenches produced by Williams show the same design feature.
"Pat'd in the U.S.A." on corresponding Williams wrenches reflects this patent.
Popp & Popp - patent attorneys
Cited as a reference in patent no. 2,444,135.
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