Abstract: A hinge comprises two elements, respectively attachable to first and second structures, and hingedly rotatable about an axis relative to each other. One said element comprises a first elongate member extending along the direction of the said axis and having a keyway slot that extends part way along the said member from one end thereof, and also comprises a second member adapted for attachment to one of the said structures and integrally formed with a key member receivable in the slot. The keyway slot and the key member are formed with profiles that enable the key member to be received in the slot to a selected one of a plurality of depths, thereby enabling adjustment in the spacing of the said one structure radially of the said axis.

Abstract: A hinge comprises two elements, respectively attachable to first and second structures, and hingedly rotatable about an axis relative to each other. One said element comprises a first elongate member extending along the direction of the said axis and having a keyway slot that extends part way along the said member from one end thereof, and also comprises a second member adapted for attachment to one of the said structures and integrally formed with a key member receivable in the slot. The keyway slot and the key member are formed with profiles that enable the key member to be received in the slot to a selected one of a plurality of depths, thereby enabling adjustment in the spacing of the said one structure radially of the said axis.

Abstract: A hinge bolt set is disclosed for improving security of hinged doors and the like, comprising a circular metal rod (1) adapted to be located in an edge face of a door (D) adajcent to but spaced from a hinge (H) and a synthetic resinous keep (7) adapted to be located in a opposing face of a door jamb (J), the keep having a tapered cavity (9) therein to receive a projecting end of the rod (1), which cavity terminates in an arcuate surface 13 to receive the bolt (1). The rod may be held in place by a knurled portion (3) and the keep with screws (17).