Abstract: Heat-shrinkable sleeves of relatively opaque polymeric material having a relatively transparent integral strip (or other formation) to facilitate positioning of the sleeve on an article about which it is to be shrunk. The opaque portions of the sleeves preferably incorporate sufficient flame-retardant additives to compensate for the absence of such additives from the transparent portions, which transparent portions preferably occupy less of the sleeve surface than the opaque portions.

Abstract: A contact arrangement for a graphite electric arc-electrode employs a contact spud composed of a metal having a high melting point and a soldering layer disposed between the contact spud and graphite electrode. The soldering layer contains at least one carbide forming metal. In one embodiment of the invention, a carbide-forming metal layer is disposed between the graphite electric arc-electrode and the soldering layer. In a preferred form of the method of making the arrangement, the soldering layer and the carbide-forming metal layer are plasma-sprayed or steamed onto the surface to be connected.