(57) The locking mechanism for the door of a safe or the like has a mechanism A for disengaging
the coupling of an external throwing handle to the main boltwork when thrown in addition
to locks (3,4) for locking the boltwork. The handle is provided on the end of a shaft
(5) which can be coupled to a thrower (6) inside the safe door by means of a sliding
link (12) held in the thrower. The link (12) is biased by a spring (15) to engage
in a recess (16) in the shaft (5) to establish the drive connection between the shaft
(5) and thrower (6). However, when either lock bolt (17,18) is thrown it passes into
an aperture (19,20) in the thrower (6) to lock the latter, and furthermore bears upon
an inclined face (21,22) of the link (12) to withdraw the link axially from the shaft
recess (16).
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