(57) A securing system for a hinged panel such as a hollow stile window or door comprises
a rotable handle (17) which drives a rotable pinion (19) acting on a slidable rack
(20). The projecting operating member (24) of the rack (20) acts between a pair of
abutments (25) fixed to a slidable espagnolette part (12), to move the slidable part
(12) relative to a fixed espagnolette part (11) secured to an edge of the window stile.
Rollers (15), which may be tapered or flanged, can be engaged or disengaged with keepers
(16) in a fully locked position (30) or a locked ventilation position (31). Optional
variations of the system incorporate a two or three point locking bar system driven
by the rack and pinion and a multi point espagnolette system acting on three or four
sides of the hinged window panel. Different widths of stile including slimline stiles
can be accommodated using slotted fixing members (22) in one plane and by the configuration
of the drive element (24) in a perpendicular plane.
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