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Rotary Engine.
Patent for improvements in rotary engines to allow for the expansion of steam after admission and minimum leakage in order to provide an engine that is capable of long-continued use with a minimum of wear and working friction (lines 15-22), including illustrations.
Date:
September 8, 1891
Creator:
Stocker, James M. & Stocker, Ziba O.
System:
The Portal to Texas History