Abstract: A device for cutting off a diesel motor or the like when the fuel level in the fuel tank of the diesel motor drops below a predetermined level or height. An electric circuit is positioned between a source of electric power and an electrically operative device which, when activated, cuts off the motor. A switch is electrically coupled to the electric circuit and is adapted to close when the level of fuel in the fuel tank drops below a predetermined level to thereby activate the electrically operative device and cut off the motor.

Abstract: A device for silencing the exhaust of an internal combustion engine. The interior of a hollow body member is divided into first, second and third chambers by first and second baffle members. An inlet port allows the exhaust from the engine to enter the first chamber. The body member is adapted to cause the exhaust entering the first chamber through the inlet port to rotate in a first direction. A plurality of ports in the first baffle member allows the exhaust to pass from the first chamber into the second chamber. The plurality of ports in the first baffle member are adapted to cause the exhaust entering the second chamber through the plurality of ports to rotate in a second direction substantially opposite the direction of rotation of the exhaust in the first chamber. A plurality of ports are provided in the second baffle member to allow the exhaust to pass from the second chamber into the third chamber.