Abstract: A device for mounting an antenna to a motor vehicle is arranged externally on air drag reduction equipment of the motor vehicle. The mounting device can be affixed to an external surface of the fairing, can be mounted in an opening cut from the fairing, or can be integrally defined on the outer surface of the fairing. The mounting device is arranged relative to the fairing so that it is at an optimum position and elevation relative to the top of the fairing and the roof of a trailer following behind the fairing so as to optimize signal transmission and reception, but avoid damage to the antenna during operation of the motor vehicle.

Abstract: The method and apparatus provides an improved system for monitoring air brakes of a motor vehicle and providing the operator with a signal when brake adjustment or repair is required. A permanent magnet is mounted to a slack adjuster or push rod for air brakes of the vehicle and the magnet is moveable with the rod. A housing containing a magnetically actuated switch, a power supply and an audible single generator is fixedly mounted relative to the push rod. As the magnet on the push rod is moved within a predetermined distance of the fixed housing, the magnetically actuated switch actuates the audible signal generator to produce a warning signal indicating that brake adjustment is required. The system has its own electrical power supply which operates independently from other electrical systems in the vehicle and therefore does not depend upon the electrical power of the vehicle itself for proper operation.

Abstract: An easily manipulable hand operable device for use in visualization of relative orientations for steering operations to a final azimuth orientation in homing of a fluid craft having an axis of symmetry and guidance system in making an approach in the homing. Three coaxial indicator discs are used.

Abstract: By providing a completely adjustable support system for securely mounting drag reducing equipment to the roof of a land transport vehicle forward of a drag producing surface with the support system secured to the roof in a configuration which allows the drag reducing equipment to be positionable in a plurality of orientations forward of the drag producing surface with the support system adjustable for mounting to any roof, a universally adjustable drag reducing equipment support system is achieved. In the preferred embodiment, the universally adjustable support system incorporates elongated support members, support struts and adjustable brackets which have a plurality of securement positions for complete adjustable interconnection of the support system to any vehicle regardless of the vehicle's configuration and secure support of the drag reducing equipment in any desired position.