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Pump-Piston.

Description: Patent for an improvement on Pump-Pistons."This invention has for its object to provide a pump-piston constructed entirely of metal in order to avoid the use of packings constructed of leather or other rapidly-wearing material; and the invention consists in certain novel features of construction herinafter fully described." (Lines 15-21) Illustration is included.
Date: December 31, 1901
Creator: Kincaid, Walter H.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Tire-Tightener.

Description: Patent for a Tire Tightener that tightens the tire by expanding the felly of the wheel.
Date: October 31, 1905
Creator: Alten, George P.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Dental Mold.

Description: Patent for dental mold, it is an improvement on patent no. 700855, by the same inventor. The improvement was to have open sides and large exit at the bottom of the lower neck of the mold, and a flask having a wide inlet in order to keep the molten metal from contact with the metal of the mold to avoid being suddenly cooled. (Lines 19-23) Illustration is included.
Date: March 31, 1903
Creator: Streetman, Willard
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Dental Swaging Apparatus

Description: Patent for a dental apparatus that produces gold facings and cusps for individual teeth, as well as plate and bridge work.
Date: July 31, 1906
Creator: Crawford, Lyter H.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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