US Patent: 2,775,326
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| Torque Drivers
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Patentees:
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| Bernard R. Better (exact or similar names) - Chicago, Cook County, IL |
| John W. Lehde, Jr. (exact or similar names) - Chicago, Cook County, IL |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Oct. 23, 1952 |
| Granted: |
Dec. 25, 1956 |
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Joel Havens
"Vintage Machinery" entry for Scully-Jones & Co.
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Description: |
| Claim:
In a torque driver, the combination of a metallic integral, elastic cylindrical driving member, means for attaching the member to a machine tool, a driven member rotatively mounted in the driving member, said driven member having two driving cams or flats arranged at 180° apart the sides of which are elevated with respect to the adjacent surfaces and rollers interposed between the driving member and the driven member .which serve to drive the driven member when they are positioned on the flats but which may override the elevated surfaces at the sides of the flats and consequently stretch the driving member outwardly under excessive torque, a sufficient amount to relieve the turning moment on the driven member but not beyond the elastic limit of the driving member. |
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