Abstract: A coin-operated lock for mounting on a trolley which is alternatively secured and released. The lock has two keyholes for two separate keys having interacting blocking means formed by codification units so that only keys having interacting, fitted codes can be mutually displaced when cooperating with their respective keyholes.
Abstract: A coin-operated lock for mounting on a trolley which is alternatively secured and released. The lock has two blockable keyholes for two separate keys, and a common fence which cooperates with the keyholes is adapted to move from a blocking position in one of the keyholes to a blocking position in the other keyhole upon insertion of a key into the latter keyhole, for securing one of the keys inserted into the corresponding keyhole.
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