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Rotary Engine.

Rotary Engine.

Date: September 8, 1891
Creator: Stocker, James M. & Stocker, Ziba O.
Description: 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.
Contributing Partner: UNT Libraries Government Documents Department