US Patent: 273,170
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Monkey-Wrench
ACME Twist Handle
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Patentee:
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| Frederick H. Seymour (exact or similar names) - Detroit, MI |
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Patent Dates:
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| Applied: |
Jan. 12, 1883 |
| Granted: |
Feb. 27, 1883 |
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Patent Pictures:
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Frederick H. Seymour patent Febr. 27, 1883, with 12 inch Railroad example |
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Stan Schulz
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Description: |
| Handle comprised of a wire or rod bent to form two parallel rods. The adjustable jaw slides on the rods, one of which is threaded to engage an adjusting nut. Manufactured in sizes 4" through 21," with several finishes, and with and without the twist handle. Whitman & Barnes took over the ACME wrench line from Capitol Mfg. in 1893; by 1915, Whitman & Barnes (the last of the four makers) had apparently ceased production of the ACME wrench.
The patent was also used as the basis for subsequent pipe and nut combination wrench patents -- e.g. no. 447,665, and was "improved on" by patent no. 460,539.
An early iteration of the combination wrench was called HOLLAND'S ACME, but the "Holland" has not been identified. |
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