Abstract: A truck body for a light truck including a frame structure attachable to the truck chassis including invertible joists with offset cantilever ends; truck body side walls each including a plurality of integral one piece molded plastic cabinet modules in tandem fore and aft arrangement with confronting end walls flush against each other and defining socket recesses to receive the offset cantilever ends of the joists; one of the modules on each side having a wheel well asymmetrically located and interchangeable from side to side to accommodate trucks of different cab-to-axle spacings.

Abstract: A detachable mounting for a seating device in a passenger type motor bus wherein an anchoring track is mounted on the floor and the base of the seating device has feet with heads which extend into the guideway of the track and are retained against upward movement by flanges in the track, and a locking pin also on the base urged downwardly into the guideway of the track and against the bottom of the track to pull the heads of the feet upwardly against the flanges and securely anchor the seating device against any movement relative to the floor of the bus.

Abstract: Apparatus retaining wheelchairs in stationary position in a bus type motor vehicle including retaining arms extending along and around the wheelchair wheels and gripping the wheelchair frame at the front, the arms being extendible and retractable, and a releasable chair clamping jaw, and being swingable upwardly to an out of the way position, the arm being articulated to swing the jaw transversely toward and away from the chair, the articulation in the arm providing locking for the extension and retraction of the arm, slide rails securing the retaining arms to the vehicle frame, the slide rails being wall mounted or floor mounted.

Abstract: An ultrasonic track testing carriage for movement along rails in operative relationship with a test vehicle is disclosed and includes a pair of wheel frames each having guide means for following the gauge side of the rail and ultrasonic sensing means mounted in working relationship with a portion of the rail for detecting changes in the rail and the position of the sensing means relative to the rail with a main frame disposed between the wheel frames and adapted to be coupled to the test vehicle for movement therewith. Interconnecting means extends between the main frame and each of the wheel frames so as to permit each wheel frame independent freedom of motion relative to the main frame in a plane substantially perpendicular to the gauge side of the rail while simultaneously maintaining parallelism between the wheel frames. The ultrasonic sensing means associated with each wheel frame is adapted to be adjusted in a vertical, lateral and angular plane relative to the rail being inspected.

Abstract: A combination highway and rail vehicle having front and rear sets of tires and front and rear sets of rail guide wheels. The front guide wheels are carried by a wheel suspension which swings the guide wheels into contact with the rails forwardly of the front tires and simultaneously raises the front tires, against the force of tire suspension springs, to positions above the rails. As a result, the front tires, which may be wider apart than the rails, are lifted out of the way, and the rear tires of the vehicle are required to carry a substantially greater portion of the weight of the vehicle plus its load, thereby increasing the traction between the rear tires and the rails.