| 摘要 |
<p>A lock for a door (10) comprising a casing (11), a bolt (55) operable to extend from or retract into the casing, a pivoted operating handle (36) operable at one side of the door movable from a rest position to an operating position to retract the bolt, the interior of the casing having a lug (21) through which a screw (27) passes into engagement in a tapped hole (23) in a fixing plate (12a) which is secured to said one side of the door, thereby indirectly securing the casing to the door. A screwdriver blade (27a) can be inserted through an opening (34, 35) in the casing to access the screw (27) when the handle is in its operating position, such access being prevented when the handle is in its rest position, by said handle blocking said opening, the handle being lockable in its rest position from said one side of the wing.</p> |
