Window bolting system of face rail with bolt uses diametrically opposed arms of bolt to engage pusher slot plus second dome-headed bolt moving opposite to first bolt for sealed closure

摘要

The first arm (7) of the first bolt (4) works with a slot in the face rail (2) and the second diametrically opposed arm (8) of the bolt is swivelled by working with the ends (10,11) of a slot (9) in the pusher (3). A second bolt (13) alongside the first bolt moves (15) the opposite way to the first bolt (16) and consists of a dome-headed pin. The swivel axis (12) of bolt lies in a block (21) which engages the face rail by means of bearing flanges (22,23). The first arm of the bolt comes in hook shape to grasp behind the defining edge (20) of the face rail slot. The pusher (3) is cranked away off the face rail in the slot area. In closure, the two bolts co-operate with the same bolting handle (5) complete with mounting slot and closing hole (18).