US Patent: 178,909
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| Rock-Drilling Machine
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Patentees:
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| Orlando Clarke (exact or similar names) - Rockford, Winnebago County, IL |
| Isaac Utter (exact or similar names) - Rockford, Winnebago County, IL |
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Patent Dates:
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| Applied: |
Apr. 06, 1876 |
| Granted: |
Jun. 20, 1876 |
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Patent Pictures:
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Joel Havens
"Vintage Machinery" entry for Clarke & Utter
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Description: |
| Abstract:
The object of our invention is to improve the machines employed to operate the drill in well-drilling machines, the drills employed being of that class known in the art as the "churn-drill".
Claim:
The combination, in a well-drilling ma-chine, of the mast B fitted with sheaves a, b, and c, operating lever C fitted with sheave d, and rope E from the spool D, passing over and under the sheaves a, b, c, and d, as described, for the purpose of imparting a churning motion to a drill attached to the free end of the rope E by means of a down-and-up movement of the free end of the lever C. |
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