Abstract: A device for rigidly connecting two members of rectilinear cross section comprises a thin, unitary sheet shaped to the general form of the surface of a hexahedron having two parallel rectangular faces and four trapezoidal faces. The device has a pair of slots at right angles to each other and the members are received in the slots and secured to the surface forming the bottom of the slot in which each is received.
Abstract: A collar having an upper and a lower shelf and adapted to be secured to the head of an A.A.R. Standard E-type railway coupler or other coupler not provided with safety shelves, the shelves, when the collar is so secured, lying respectively over and under the coupler head recess which receives the knuckle of a mated coupler to prevent coupler disengagement during a derailment or a coupler pull-out.
Abstract: The keyslot of a railway coupler shank is modified to eliminate the interference between the coupler shank and draft key during conditions of buff or draft during vertical curve negotiation of the cars when traversing uneven track. The upper and lower walls of the keyslot diverge from the rear bearing surface of the keyslot adjacent the butt of the coupler shank. Thus the keyslot opening is wider in the front portion than at the rear portion.