US Patent: 250,493
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| Lubricating Wrench
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Patentee:
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| Oliver Brothers, Jr. (exact or similar names) - Hartland, VT |
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Patent Dates:
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| Applied: |
Oct. 17, 1881 |
| Granted: |
Dec. 06, 1881 |
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Patent Pictures:
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Oliver Brothers, Jr. patent December 6, 1881 |
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Stan Schulz
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Description: |
| The oiler with spring-loaded internal plug is on the back side of a screw-adjusted axle nut wrench. One known example has a threaded stud on the back side; the oil can was absent. Another has a plausible oil can braze welded to the frame.
A blank letterhead gives the maker name as Wagon Wrench Co. of Hartford, VT. |
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