Patent ID: 6918273
Filing Date: 2005-07-19
Classification: E05B,Y10T

Abstract:
1. A lock for a wing movable between open and closed positions relative to a frame comprising a casing, a bolt operable to extend from or to retract into said casing, an operating member at one side of the wing, in use, arranged to be pivotally operable to retract the bolt, a pivoted locking member at least partly within the casing, arranged to automatically and directly engage the bolt and to deadlock the bolt when it is in its extended position, and a unitary element separate from the casing, said element providing within the casing either a part only of a bearing surface for a pivot of the operating member or a part only of a bearing surface for a pivot of the locking member, or parts only of respective bearing surfaces for respective pivots of the operating member and the locking member.