Parallelepipedic support for electrical contact rail - includes large recesses with various packing blocks for assorted rail sizes

摘要

The support includes a rectangular block of insulating material which has a number of recesses cut in its upper surface. Each of these is intended to receive a bus-bar at right angles to the length of the block. The recesses are adequately wide to take the widest required bus-bar, and are at least as deep as the bus-bar depth. Support blocks of various sizes may be fitted into these recesses in order to occupy the space between a partic. size of bus-bar and the recess. These are dovetailed into the sides of the recess. The higher portions of the main block between recesses each have a threaded hole down through them to receive bolts retaining a cover over the whole support block.