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Ernst Lehmann
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Publication of GB190512679ApublicationCriticalpatent/GB190512679A/en
12,679. Lehmann, E. June 19. Gas and like engines, valve - gear for. A right and left handed screw 10 is used to separate or bring together the portions 3, 7 of a camactuated valve-rod, the top of which actuates the stem 2 of the valve 1, the lift of which is thus made variable. In the case shown, the lift is nil, but can be made a maximum by the rods 13, 14 turning the arm 11 through less than 180 degrees. The guide 4 is fixed to the cylinder casting and prevents the portions 3, 7 from rotating.
GB190512679D1905-06-191905-06-19Improved Means for Varying the Lift of Valves in Explosion Engines.
ExpiredGB190512679A
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