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Robert Cormack Mclean
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Publication of GB190604499ApublicationCriticalpatent/GB190604499A/en
4499. McLean, R. C. Feb. 23. Fixed-abutment type.-In the type of engine shown in Fig. 2, in which sliding pistons 21 act as valves for the admission of steam or other motive fluid from a central chamber 18 to the expansion chambers 31, auxiliary exhaust ports 36 are provided in the inclined faces of the abutments, in addition to the main exhaust ports 34. With this arrangement, the pistons experience no back pressure between the main exhaust ports and the abutments 28.
GB190604499D1906-02-231906-02-23Improvements in Rotary Engines.
ExpiredGB190604499A
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