GB Patent: GB-1,338,098
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| Handles
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Patentee:
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| Adcock & Shipley, Ltd. (exact or similar names) - Leicester, England |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Dec. 08, 1971 |
| Granted: |
Nov. 21, 1973 |
Espacenet patent
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Joel Havens
"Vintage Machinery" entry for Adcock & Shipley Ltd.
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Description: |
| A handle 10 which is automatically connected to a shaft 12 when the handle is rotated comprises a clutch pin 26 radially slidable in an arm 18 of the handle and biased by a spring 28 into engagement with a flat on an extension 24 of a hand grip 20 which, when rotated relative to the arm 18, moves the clutch pin 26 radially inward into engagement with a recess in the shaft 12. The end 34 of the clutch pin 26 and the recesses in the shaft 12 are tapered radially outwardly and tend to retain the clutch engaged during drive. The shaft 12 may have a plurality of circumferentially spaced recesses. In Fig. 4 (not shown) the hand grip (52) is rotatable on a spindle (54) and a friction drag coupling (58) is interposed between the hand grip and spindle to cause rotation of the spindle relative to the arm of the handle for clutch engagement. |
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