GB Patent: GB-2,068,791
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| Chucks
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Patentee:
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| Julius Harman (exact or similar names) - Coventry, Warwick County, England |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Feb. 05, 1981 |
| Granted: |
Aug. 19, 1981 |
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Patent Pictures:
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Espacenet patent
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Joel Havens
"Vintage Machinery" entry for Webster & Bennett
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Description: |
| Abstract:
A chuck for a machine tool includes a body 10 with a number of jaws 11 movable in radial slots 13, movement of the jaws 11 being by means of respective lead screws 17 engageable with a drive mechanism incorporating a main clutch 52, 53 and the individual lead screws being engageable or disengageable with the drive mechanism main clutch through respective further clutches 31, 32, the main and further clutches being fluid pressure actuated. |
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