UNT Libraries Government Documents Department - 7 Matching Results

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Rotary Engine

Description: Patent for rotary engine. This invention "is to provide means whereby the steam supply from the boiler can be controlled. Illustration included.
Date: September 13, 1910
Creator: Frazer, Terry H. & Vanlandingham, William W.
Item Type: Refine your search to only Patent

Piano-Hammer.

Description: Patent for a piano hammer, which has a strip of striking material that can be moved over to a new section when one section wears out, to increase the life of the hammer.
Date: May 24, 1910
Creator: Young, Henry E.
Item Type: Refine your search to only Patent
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