US Patent: 643,540
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Wrench
Combined Ratchet-Drill and Monkey Wrench
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Patentee:
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| Johm Rumery (exact or similar names) - Cleveland, OH |
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Patent Dates:
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| Applied: |
Jan. 28, 1898 |
| Granted: |
Feb. 13, 1900 |
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Patent Pictures:
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John Rumery Pat. February 13, 1900 |
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Stan Schulz
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Description: |
| The ratchet head has a conical opening and sliding jaws operated by a screw ring. The ratchet mechanism is two pawls with separate springs, and thrown into or out of engagement by cams operated by a thumb lever. The drill chuck is also described.
Ken Cope's "American Wrench Makers 1830-1930" cites a 1902 "Iron Age" ad. An example on eBay in Sept. 2006 was marked in part "Pat ... John Rumery Feb. 13, 1900" |
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