Abstract: A railroad car energy absorption apparatus is disclosed. The railroad car energy absorption apparatus includes a spring assembly having an elastomer spring element arranged in operable combination with structure for inhibiting localized heat deterioration of the elastomer spring element.

Abstract: An electrical connection assembly for use at a firewall bulkhead for connecting the electrical conduits coming from one side of the firewall with those coming from the other side. A main connection panel has a unitary body of insulating material with a series of rows of through openings between its faces. In each opening is metallic tubular first insert having, between the faces, in interiorly threaded portion and a radially inset smooth-walled portion. A set of connector plugs, each different in outline from the other and each having at least one row of through openings spaced to match a corresponding row on the panel, fits against and is keyed to the panel, so that each plug can occupy only one possible position, aligning the openings. In each of these openings is a tubular, interiorly threaded second insert. Solid electrical binding posts include a set for the panel, each having a portion threaded into the interiorly threaded portion of each first insert, and a connector-clamping head.