TWO-CYCLE EXPLOSION-ENGINE

Two-cycle Explosion Engine

Courtesy of George A. Winter, 1121 Summit Street, Spooner, Wisconsin 54801

George A. Winter

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Davenport, Iowa. Filed Oct. 11, 1909. Serial No. 522,029.

The patent for the two-cycle explosion engine Sieverkropp

1. An explosion engine having like cylinders in parallel relation, said cylinders being spaced apart and intercommunicating at each end, with both ends of each cylinder normally closed to the atmosphere and the two cylinders at the adjacent walls each having a longitudinal slot matching that of the other cylinder, pistons in the cylinders, a connecting member for the pistons traversing the slots in the cylinders, an inlet port in one cylinder controlled by one end of the piston in the said cylinder, an exhaust port in the same cylinder controlled by the other end of said piston, a port at the power end of the other cylinder controlled by the piston in said other cylinder, the last named port communicating with the end of the same cylinder remote from the power end, a base or support for the cylinders, a crank shaft mounted in said base, and a pitman between the crank shaft and the connecting member for the pistons, the base constituting a closure for the corresponding ends of the cylinders where engaging said cylinder ends.

2. An explosion engine having like cylinders in parallel relation, said cylinders being spaced apart and inter-communicating at each end, with the ends of the cylinders normally closed to the atmosphere, pistons in the cylinders connected for movement simultaneously in the same direction, an inlet port in one cylinder controlled by one end of the piston in said cylinder, an exhaust port in the same cylinder controlled by the other end of said piston, and a port at the power end of the other cylinder controlled by the piston in the said other cylinder, the last named port communicating with the end of the same cylinder remote from the power end.

Pictured on the left is a Sieverkropp 1 HP 1910 Model 2 cycle, 2 cylinder but one spark plug, hopper water-cooled, buzz coil battery ignition. Engine on the right is a Waterman inboard boat engine with copper water jacket, 2 cycle, 3 HP, buzz coil, battery ignition, brass water-cooled muffler.

This large engine is a Red Wing 2 HP, 1907 boat engine made by the Red Wing Boat Company, Red Wing, Minnesota. It has steel water-cooled muffler, buzz coil, battery ignition and weighs 200 lbs.

Two views of an engine found in a dump. Dimensions 20' high, 13' wide, approximately 2-1/2' bore 4' stroke. Frame is bronze rods and eccentric rods are bronze. It is an upright and concave mounting for side of boiler. Who can tell what it is. Also a chain sprocket in center. It will be restored.