US Patent: 2,889,022
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| Double Roller Torque Driver
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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: |
Jul. 13, 1955 |
| Granted: |
Jun. 02, 1959 |
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Joel Havens
"Vintage Machinery" entry for Scully-Jones & Co.
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Description: |
| Claim:
A torque driver for the purposes set forth having a resilient driving shell, means for attaching the shell to a machine tool for turning the same, said shell having a tapered bore, a driven member mounted in the shell and having a tapered portion, a roller cage secured to the tapered portion, rollers mounted in slots in said cage, a second roller cage between the first named cage and the driving shell, rollers mounted in slots in said second named cage and engaging with the first named rollers and the tapered portion of the driving shell, the combined diameters of a pair of the first namcd and second named rollers being greater than the distance between the tapered portion of the driven member and the tapered portion of the driving shell, the arrangement being such that the driving shell and pairs of rollers will act as a roller clutch to drive the driven member and when the driven member presents too much resistance, the second named rollers will ride over the first named rollers and deform the driving member and move into non-driving positions, and means for holding the cages with the rollers in non-driving position after such overriding and permitting free wheeling of the driving shell. |
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