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(11) | EP 1 342 870 A3 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | Lock |
| (57) A lock comprising a bolt operating cam (21), having at one side thereof a barrel
(23), to which a thumbturn (27) is secured, and at the other side thereof a key operable
plug (32) of a pin tumbler lock. The barrel (23) is keyed to the cam (21) for effecting
angular movement of the cam (21), in use, whilst in one of its states the plug (32)
is angularly movable relative to the cam (21). Clutch means (36) is provided for interconnecting
the plug (32) and the cam (21) to place the plug (32) in another of its states in
which angular movement of the plug (32) effects angular movement of the cam (21),
in use, the clutch means (36) being keyed to the plug (32). |