Abstract: The present invention relates to a lock assembly which includes a lock body. The lock body is adapted to receive a lock barrel. The lock barrel has a plurality of passages. Each of the passages is in communication at one end with the lock body and open at the other end. The lock assembly also includes at least one wafer and a lower pin part. The wafer is received in one of the passages. The lower pin part is received in at least one of the remainder of the passages. The wafer has a column. One end of the column is adapted to include a key engaging surface while the other end is adapted to rest on a wall of the lock body. The lock barrel has a key slot which is in communication with the passages. The key slot is adapted to receive a key with a low cut adapted to correspond to the key engaging surface. The column is so configured as to provide a gap between the key engaging surface and the low cut when the key is a bump key.

Abstract: The present invention relates to a lock assembly which includes a lock body. The lock body is adapted to receive a lock barrel. The lock barrel has a plurality of passages. Each of the passages is in communication at one end with the lock body and open at the other end. The lock assembly also includes at least one wafer and a lower pin part. The wafer is received in one of the passages. The lower pin part is received in at least one of the remainder of the passages. The wafer has a column. One end of the column is adapted to include a key engaging surface whilst the other end is adapted to rest on a wall of the lock body. The lock barrel has a key slot which is in communication with the passages. The key slot is adapted to receive a key with a low cut adapted to correspond to the key engaging surface. The column is so configured as to provide a gap between the key engaging surface and the low cut when the key is a bump key.

Abstract: The invention provides a lock body assembly (10A) suitable for a double lock barrel assembly having two lock barrels (12). The assembly (10A) has a main body (14A) for receipt of a lock barrel (12) and a plurality of pin tumbler passages (16). Each pin tumbler passage (16) communicates at one end with the main body (14A) and is open at the other end. Closing off means (30) closes off the other ends of the pin tumbler passages (16).

Abstract: The invention relates to a cover plate for installing a handle in a door having opposing faces, an aperture communicating from one face to the other and first and second flanges adapted to lie on the opposing faces. Each flange has an aperture, corresponding at least in part with the aperture in the faces, and first cut-outs and optionally second cut-outs. The aperture and the cut-outs enable at least one different handle to be installed. The handle may have a backset distance of 60 mm, 70 mm, 90 mm, 95 mm or 127 mm, for example. The invention also relates to an adaptor for installing a handle in a door having an aperture communicating from one face of the door to another and cut-outs at the aperture. The adaptor is capable of changing the aperture in the door from one suitable for installing one type of handle to one suitable for installation of a different type of handle. The invention also further relates to use of the cover plate with one or more adaptors.