Abstract: Apparataus for butt joining hanging conveyor supports having a C-shaped rail section in which conveying hangers can travel back and forth along the rail section. The supports each have a hollow section above the rail section and trolley wires running along at least one vertical side of the supports. Connecting parts are disposed between ends of adjacent supports, the hollow section having at least one profiled section in the shape of a square standing on a point. A square tube connects the ends and bridges the connecting parts and are inserted into the profiled sections at the ends of adjacent supports. Tie rods connect the ends of the adjacent supoorts. At least one L-shaped angle iron is disposed on each of the top sides of the ends of adjacent supports. The angle irons are connected to one another via at least one screw bolt and act, on both vertical sides of the ends of adjacent supports, on the tie rods which connect the ends together.

Abstract: A trolley carriage comprising rollers for carrying the trolley carriage along a bearing rail. The rollers are supported by at least one roller support of the trolley carriage. The bearing rail has live rails which are insulated from one another extending along the bearing rail, and the trolley carriage has sliding contacts which are in flexible contact with the live rails. A common housing part which is connected to at least one roller support via a detachable quick coupling supports the sliding contacts.