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Arthur Knowles
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1255. Knowles, A. Jan. 19. Drawings to Specification. Steam pumps, direct-acting. Relates to the distribution valve gear. The valve is operated during the greater part of the stroke from the main crosshead, but at the end of the stroke is given a further movement by means of a fluid-actuated piston, or a spring, acting through toggle joints.
GB189901255D1899-01-191899-01-19Improvements in the Valve Gear of Direct-acting Steam Pumps and Compressors and similar Engines.
ExpiredGB189901255A
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