Abstract: An internal combustion engine having a sleeve valve wherein the sleeve valve is the cylinder sleeve of a respective cylinder whereby a very simple reciprocation and oscillation of the sleeve valve may be effected by means of a rotary valve which controls the intake of a fuel-air mixture into the crankcase of the engine. By suppying the fuel-air mixture into the crankcase of the engine and providing each cylinder with transfer passages extending axially through the cylinder and radially adjacent cooling fins of such cylinders, it is possible to effect an isothermal compressing of a fuel-air mixture within the cylinder followed by that fuel mixture being adiabatically compressed by the movement of the respective piston towards the head. The use of a sleeve valve, particularly in association with rotary intake valves, provides for a very simple valving arrangement with a minimum of parts.

Abstract: This relates to a heating system which may be utilized conventionally for the heating of homes or the like. The heating system incorporates a conventional well having a casing extending above the level of the water in the wall and wherein a sufficient vacuum is drawn in the casing above the water level so as to cause the water to boil at approximately the temperature of the water in the well. The pressure of the water vapor is then raised in the vacuum pump to a pressure substantially atmospheric or slightly above, at which time the water vapor temperature rises to approximately 212.degree. F. The high temperature water vapor is then directed through a condenser where it is condensed back into water and is returned to the well or some other area. The condenser may be utilized for the transfer of heat to heat the house or other unit being heated.

Abstract: An internal combustion engine having a piston assembly such that gaseous flow into a cylinder is through the piston assembly and wherein all gaseous flow in a cylinder is in a single direction. The piston assembly includes inner and outer piston members which are relatively movable so as to form a gaseous passage therethrough in certain conditions. The engine also features a special valve mounting arrangement and a special crankshaft construction.

Abstract: A fluid transmission which includes a hydraulic pump combination and a hydraulic motor. The hydraulic pump combination includes a first pump which is a variable volume, variable direction pump and a second pump which is a constant volume, constant direction pump. The combined outputs of the first and second pumps are directed to a hydraulic motor at variable rates and in reversible directions.

Abstract: This disclosure relates to an adaptation of a conventional internal combustion engine wherein the customary energy losses in the form of heat are greatly reduced by the conversion of the heat into a power source for other cylinders of the engine. The engine includes plural cylinders of which certain cylinders are conventional internal combustion cylinders and there being a heated gas cylinder and a gas pumping cylinder whereby a gas may be heated by means of the heat loss generally occuring with respect to the internal combustion cylinder and this heated gas may be utilized to produce work in the heated gas cylinder, after which the gas is pumped back into the system by the pumping cylinder. The gas is preferably a combustible gas whereby gas which escapes past the pistons of the heated gas cylinder and the pumping cylinder into the customary crank case of the engine may be delivered into the internal combustion cylinder for burning therein.

Abstract: This disclosure relates to a fluid carrier recovery system for recovering oil and like liquid deposits from an underground source wherein the oil is deposited in an unpumpable form and wherein the oil is recovered by directing into the oil deposit a carrier which will fill a large volume of the oil deposit and which will flow upwardly through a flow passage in the earth to a location adjacent or above the surface of the earth, followed by the introduction into the lower part of such volume of a solvent for the oil, the solvent having a lesser specific gravity than the carrier and being operative on the oil to form oil-solvent droplets which float in the carrier and flow to the top of the flow passage for recovery. The carrier is preferably water and the solvent may be an inexpensive mineral spirit immiscible with water.

Abstract: This disclosure relates to a fluid transmission for automatically varying the drive ratio in accordance with the load placed thereon and includes a pump unit and a motor unit and wherein the pump unit is of a variable displacement with the displacement thereof being automatically adjustable in accordance with the pressure of the fluid output thereof and the input speed of the pump unit. The pump unit is of the radial piston type and includes a race member engaged by the pistons for controlling the displacement thereof. The race member has a cylindrical race surface and is mounted for tilting movement wherein in a neutral position the pistons have zero displacement and wherein when the race member is tilted, the displacement of the pistons increases.