Device for fixing a trolley to a support plate

摘要

The bolt (35) is height adjustable and has a head (36) located beneath a fork-shaped opening in the plate. The bolt is held in place by a tab (7) secured by two screws (8) to the underside of the plate. The plate is secured to the door, gate or window leaf (4) using screws. The bolt is used to orient the leaf in a horizontal position.