US Patent: 357,986
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Wrench
Improvements in Monkey-Wrenches
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Patentee:
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| Alfonso D. Gates (exact or similar names) - Cleveland, OH |
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Patent Dates:
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| Applied: |
Apr. 08, 1886 |
| Granted: |
Feb. 15, 1887 |
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Patent Pictures:
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Alfonso D. Gates Pat. February 15, 1887 |
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Stan Schulz
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Description: |
| The handle, stock and fixed jaw appear to be single piece of metal. The movable jaw slides in a slot, and is adjusted by a bolt which extends through the fixed jaw end of the wrench. A retaining piece is inserted in the same opening. Gates' Feb. 12, 1889 patent (no. 397,794) elaborates related manufacturing processes involving welding or brazing component parts.
This design also received Canadian patent no. CA-28,873 granted April 12, 1888.
Wrench collectors called this the "GATES BULL Wrench" which is most likely a mis-reading of "GATES BOLT WRENCH." If anyone has seen a contemporary product ad for this wrench, please contact the steward (use the "Report data errors.." link).
Note: The LORAIN WRENCH shown in 1890 write-ups had the adjusting screw next to the handle - like a "monkey wrench", rather than on the "head" end. No corresponding patent has been identified. |
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