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Expired
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John William Mackenzie
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Individual
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12,029. Mackenzie, J. W., [Safety Motor Co.]. July 3. Gas engines.-The engine has two high-pressure cylinders A, B, working on a four-stroke cycle, which deliver alternately into a low-pressure cylinder C placed between them, the low-pressure crank d<2> being opposite the high-pressure ones d, d<1>. The three cylinders are cast in one piece with the part e of the crank chamber. The cylinder covers and valve-chest E<1>, E<2>, E<3>, E<4> form another casting. The exhaust valves a<3>, b<3> from the cylinders A, B, and that of the cylinder C, are worked respectively by cams f, f<1>, f<3> on the shaft F. The engine is suitable for vehicles.
GB190012029D1900-07-031900-07-03Improvements in Gas Engines.
ExpiredGB190012029A
(en)