Abstract: A pair of telescoping members include interconnecting end portions having a preselected configuration that facilitates the insertion of one tubular end portion into the other tubular end portion. The surface configuration of the interconnecting end portions is complementary so that the surfaces on an inner member engage the surfaces on the outer member to permit the transmission of rotation from one telescoping member to the other while permitting relative longitudinal movement therebetween. The inner and outer connecting members are spaced apart to form an annulus therebetween and provide a degree of tolerance greater than the tolerance provided with conventionally machined telescoping connecting end portions. The tolerance is taken up by the injection of a thermosetting resinous material at an elevated temperature into the annulus, completely filling the annulus.

Abstract: A device for lubricating rails is mounted on a track maintenance truck. A pair of heated grease cannisters are mounted in the truck bed along with an air compressor for powering the pneumatic components of the lubricator. A pair of applicator arms have nozzles which apply the grease in a bead to the rails. Valves operated by pneumatic cylinders control the flow of grease to the applicator arms. A special frame attached to the rail gear on the rear bumper of the truck rotatively supports a pair of coaxial shafts on which the arms are carried. Independent pneumatic cylinders rotate the shafts to move the applicator arms between a lowered operating position for applying grease and a raised position in which the arms extend horizontally when not in use. Each arm can be manually moved to and latched in an upright position for over the road travel of the truck.

Abstract: A protective gear assembly includes cantilever-type protective pads to be used by those athletes engaged in contact sports such as football, hockey, etc. The pads are releasably attached to a one piece padded vest type jacket by strap like members which pass through apertures thereon. The vest jacket is designed to receive all the necessary elements in the protective gear assembly such as epaulettes, padded cups, back plates shoulder plates and breast plates.