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John Brotherston
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Individual
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Individual
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Publication of GB190228907ApublicationCriticalpatent/GB190228907A/en
28,907. Brotherston, J. Dec. 31. Packing vanes of engines, pumps, or the like of the crescent-shaped chamber type. The sliding vane D has a central slot containing two plates D<1>, between which is a rectangular space in which an india-rubber or other resilient block E is inserted, and which acts as a spring.
GB190228907D1902-12-311902-12-31Improvements in Rotary Pumps, Engines and the like.
ExpiredGB190228907A
(en)