Abstract: A spare tank system for a motor vehicle is provided which may conveniently be coupled into the normal fuel line of the vehicle, and which comprises a conduit in which a valve and a fitting are mounted. During normal operation of the motor vehicle, the valve is in a first operating position, and the fuel from the normal fuel system flows through the fuel line and through the conduit to the engine without being impeded in any way. One or more closed cylinders, or other pressurized containers of fuel, such as gasoline, are also provided which may normally be carried in the trunk of the vehicle. Should the vehicle run out of gas, the valve is set to a second operating position, and the nozzle of the container is inserted into the fitting, so that fuel from the container may now flow through the conduit to the engine, with the normal fuel system being shut off.

Abstract: A stationary display member which is mounted on the rotating hub cap of a wheel of a vehicle, such as an automobile, or other rotating member, is provided, which comprises a disc-like member coaxially mounted on the hub cap to be freely rotatable about the axis of rotation of the hub cap. The disc-like member has an internal chamber which is partially filled with a flowable material, such as mercury. The flowable material collects at the bottom of the chamber, and it forms an off-set weight which prevents the disc-like member from turning as the hub cap turns about is axis of rotation. A damping device is included in the chamber which coacts with the flowable material, and which damps out any tendency for the disc-like member to oscillate about the axis of rotation of the hub cap. An appropriate insignia, design, message, or other inscription, is imprinted or attached to the outer face of the disc-like member and which remains stationary as the hub cap rotates.