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John Hoyle
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10,446. Hoyle, J. May 8. Air pumps; stuffing-boxes.-The top of a doubleacting pump withdraws air through ports b, from which water is excluded by a baffle d. The air is expelled through a floating stuffing-box, which serves as a valve and ports in the cap k, or through a smaller lateral valve l. The water-delivery valves are guided by a prolongation e of the studs f, which secure the cover g to the bracket h. The application of the invention to pump with a ported cylinder liner is described, in which the air ports b may form an extension of the water ports c on the delivery side. In the Provisional Specification, Specification No. 2948, A.D. 1902, is referred to.
GB190310446D1903-05-081903-05-08Improvements in Air-pumps for Steam Engines.
ExpiredGB190310446A
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