US Patent: 593,157
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| Ratchet mechanism
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Patentee:
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| Zachry T. Furbish (exact or similar names) - Philadelphia, PA |
| USPTO Classifications: |
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192/43.1, 192/51, 193/44, 74/127, 74/14, 74/16, 74/571M, 74/577R, 74/86, 81/62, 81/63.1
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Patent Dates:
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| Applied: |
Aug. 03, 1897 |
| Granted: |
Nov. 02, 1897 |
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Patent Pictures:
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Steve Gosselin
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Description: |
| Information taken from Clifford D. Fales' database at http://www.idcomm.com/personal/cfales/intro.htmThe second of many Furbish patents assigned to North Brothers. This patent covers multiple features (ratchet screwdriver, spiral screwdriver, spiral screwdriver/drill, continuous rotary motion from double reciprocating motion, spiral screwdriver with ratchet screwdriver.Marked, "YANKEE / NORTH BROS. MFG. CO. / Philadelphia, PA. U.S.A. / PATENTED / NOV. 2, 1897"This is the ratchet patent used on many early North Brothers archimedean drill and drivers, such as Models 30, 50, 40, and 41. |
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