Abstract: A self-latching sash latch device for use with a sliding closure. The latch device has a primary bolt (15) which in use engages with a strike (12). The primary bolt (15) is coupled to an operating element (13) whereby the primary bolt is moveable from a latching position to a retracted position. A retainer (38) retains the primary bolt (15) in the retracted position. A secondary bolt (16) is moveable with or independent of the primary bolt (15) and is engageable with the retainer (38) to release the retainer and enable the primary bolt (15) to move from a retracted position to the latching position.

Abstract: A handle for a window operator. The handle includes a handle member 10 pivotally coupled to a base 11. A locking mechanism releasably locks the handle member 10 in a position relative to the base 11 which corresponds to an in-use position of the handle member. The locking mechanism includes a locking member 14 within the handle member 10. The locking member 14 performs a blocking action to prevent pivotal movement of the handle member relative to the base. The locking member has a push button 15 accessible to an exterior surface of the handle member whereby the locking member can be moved to remove the blocking action and allow the handle to be pivoted to a non-use position.

Abstract: A lock mechanism primarily intended for a sliding door or window application. The lock mechanism includes a lock body (10) with a lock beak (21) rotatably mounted therewith and biased by a bias element (23) to a first position. The lock beak (21) is co-operable with a hook (20) of a strike (13) upon the hook engaging in the body whereby the lock beak (21) rotates to a second position against the bias of biasing element (23). Operating members (27 and 28) within the lock body (10) are operable by external actuating elements such that the operating members can be independently operated to cause the lock beak (21) to move from said first position to said second position and one of the operating members to retain the lock beak in said first position.

Abstract: A window operator for moving a window sash in a window frame (F) between open and closed positions. The window operator has a mounting plate (14), an elongate threaded member (16) mounted with the mounting plate (14). A drive handle (11) enables a rotational movement to be applied to the elongate threaded member (16). A threaded element (66) is located on the elongate threaded member (16). A hinge (26) with which a window sash can be mounted is attached to a coupling (23) moveable in response to movement of the threaded element (66) on the elongate threaded member (16). The hinge (26) has one arm (28) pivotally coupled to the mounting plate (14). Because arms (24 and 25) of the hinge (26) is attached to the coupling (23), movement of the coupling (23) results in movement of the hinge (26).

Abstract: A multi-link connector which is particularly suitable for use with a window operator. The multi-link connector includes a plurality of links (12) joined together by a joining arrangement (11). The links (12) include a base (13) and a pair of oppositely disposed walls (14) so that the links (12) form a generally channel shaped elongate length. The joining arrangement (11) provides a plurality of drive elements (11a) which extend transversely between the walls (14) and are accessible through a gap (16) formed between the walls.

Abstract: A latching mechanism which is primarily intended for use with hung and sliding window systems. The latching mechanism includes a body 10 and latch element 25, the latch element being moveable between a latching position and a non-latching position. The latch element 25 is coupled to a slider 36 which is moveable by an operating slide 13 mounted with lock furniture 11. The slide element 13 is coupled to the slider 36 by a lost motion member 34 which is operable to release a snap hook from engagement with the slider 36 prior to the slider 36 being moved from its latching position.

Abstract: A latch device intended for use with sliding and hung window systems. The latch device has a body (10) and a latch element (11) which is moveable between a latching position where it projects from the body (10) and a non-latching position where it is retracted into the body. A slide element (15) in a body (14) is coupled to a movable sub-housing (12) so that movement of the sub-housing (12) by the slide element (15) causes the latch element (11) to be moved. The body (10) is insertable into an opening in a window section and snap locks in place by the action of fingers (27) and face plate (18) acting on opposite sides of the window section adjacent the opening. The latch device can thus be fixed into a window section without any additional fasteners.

Abstract: A latch device for sliding and hung window systems. The latch device has a mounting base (15) with which a pair of counter-rotatable cam elements (11) are mounted. A lever cover (12) is slidingly mounted on the base (15). The lever cover (12) is coupled to the cam element (11) so that sliding movement of the lever cover (12) causes the cam elements to counter-rotate. Each cam element (11) has a cam portion (22) which is engageable through an opening (41) in a keeper (14) to latchingly engage behind a cam engagement surface (42) associated with the opening (41).