Abstract: A conveyor structure (1.20) is disclosed that is capable of being retracted concertina fashion for transport on a trailer (42) between sites of operation. The structure comproses a plurality of H-frames each comprised of rigid supports (2A, 2B or 21,22) joined by a cross-member (3) which supports rollers (3A-D,30) upon which the conveyor belt (4) travels. Extensible links (6), and cross-braces (25,26) maintain the longitudinal and lateral rigidity of structure.

Abstract: A tungsten-halogen exposure lamp having a tubular envelope of quartz or high silica glass has a pinch seal at each end with a pair of stiff lead-in wires respectively extending therefrom. Attached to each lead-in wire is an open ended spade lug having a U-shaped portion laying in a plane parallel to the lamp axis. The spade lugs can be coaxially crimped about the lead-in wires. In a light source having an elongated holder with projecting mounting studs spaced from opposite ends of a cylindrical reflector, the tubular lamp is disposed along the vertex of the reflector with the pinch seals projecting through access clearances at opposite ends of the reflector with the spade lugs engaging the mounting studs.