Abstract: A latch for securing a ladder to a ladder rack mounted on a vehicle having a cross brace is formed by a latch body rigidly secured in depending relation to the cross brace. A sleeve pivotally mounted in the ladder latch body slidably receives the rod shaft portion of a J-shaped hook gripping a rung of the ladder when in a first position and releasing the ladder rung when pivoted to a second position. A lever and handle, pivotally supported by the latch body is pivotally connected with the rod shaft of the hook for manually positioning the hook in its first and second positions. The latch body receives the shackle of a lock for preventing unauthorized manual movement of the handle and releasing the rung of a ladder mounted on the rack.

Abstract: Devices for lifting and lowering the driven ends of large, heavy rotating conveyor rolls and having a rigid member provided with portions engaging bearing housings journalling the driven ends of the rolls. Rotatable members, operatively connected to the rigid member, lift and lower the engaging portions in a vertical path relative to a stationary surface mounting the bearing housings so that shims supporting the conveyor rolls in a common planar position may be removed or placed therebeneath, whereby conveyor rolls in the conveying system can be removed and installed.

Abstract: An apparatus for supporting and conveying glass sheets on a series of conveyor rolls having arcuately curved central portions normally disposed in an upper common horizontal plane for supporting a flat sheet of heat-softened glass to be bent and pivotable into a lower angular position out of engagement with said flat sheet upon engagement thereof along its marginal edge portions by the shaping rail of an upwardly movable female press member. Each conveyor roll is provided with a two-piece coupling comprised of a first section secured to the conveyor roll and a second section operatively connected to a drive arrangement. The sections are angularly rotated relative to each other to effect precise angular adjustments therebetween for varying the angular attitude of the associated conveyor roll in its lower position of use.