Abstract: A method for producing an airspring which reduces the time of manufacture by the vulcanization of the airsleeve in the absence of beads. After vulcanization of the sleeve, and end portion of the sleeve is wrapped about a bead ring and crimped within an annular rolled portion of at least one end member.

Abstract: An elastomeric drive belt having cable reinforcement wherein lateral forces generated by the various layers of cables while the drive belt is in use are neutralized to prevent tracking problems.

Abstract: A tractor (12) and trailer (14) coupled together in tandem towing relationship is provided with an air deflector system (10) attached to the tractor (12) for aerodynamically reducing the drag on such combination by enclosing the space between the cab (12a) of the tractor (12) and the trailer (14). A support means (40) is attached to the frame (42) of the tractor (12). A top air fairing (16) is movably attached to the support means (40) for extending from the top of the cab to the top of the trailer. Two side fairings (18a,18b) are movably attached to the support means (40) for extending from the rear of the cab (12a) to the trailer (14), and wherein the side fairings mate with the top fairing. A means is provided for moving the fairings (16,18a,18b) from one position to another based upon the alignment between the trailer (14) and the tractor (12).

Abstract: A wear resistant elbow or bend for use in the pneumatic transport of abrasive materials which comprises an elastomeric liner (14) and a rigid outer shell (30). The elastomeric inner liner (14) has inlet and exit portions that are circular in cross section and connected to a segment that is a closed "U" shape in cross-section. The top of the "U" is the impingement surface (A) that is on the outside of the bend. The impingement surface (A) is essentially flat and on a plane or planes which are inclined so that the angle of incidence (.alpha.) is at least 35.degree., but not more than 65.degree. with reference to the axis of the inlet portion or the direction of the incoming flow of conveyed material (18).