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6 Matching Results
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Battery-Plate and Terminal Connection
Patent for improvements on a battery plate and terminal connections. Plate lugs and the terminal for the battery are a solid piece to fit more battery sizes and prevent the lugs from breaking off.
Date:
May 4, 1920
Creator:
Hawkins, Alda F.
System:
The Portal to Texas History
Covertible Stock and Freight Car.
Patent for an improved process of constructing convertible stock and freight train cars, including illustrations.
Date:
May 4, 1920
Creator:
Wyatt, Everett
System:
The Portal to Texas History
Dental Tool
Patent for a series of dental cleaning tools to remove deposits from teeth and smooth rough surfaces. This design inflicts minimal damage to the gum tissue while both a guide and blade are in contact with the tooth.
Date:
May 4, 1915
Creator:
Carr, Cassius M.
System:
The Portal to Texas History
Design for a Jar.
Patent for ornamental design on jar depicting the logo for the Jersey-Creme drink company
Date:
May 4, 1909
Creator:
Jersey-Creme Company
System:
The Portal to Texas History
Electric Motor.
Patent for an electric motor that operates "with equal efficiency on either direct or alternating current" (lines 10-11).
Date:
May 4, 1915
Creator:
Adams, Homer E.
System:
The Portal to Texas History
Magneto-Telephonic Apparatus
Patent for an invention to improve transmitting vocals and other sounds. It is a magneto telephonic system based on an magnetic field of high intensity.
Date:
May 4, 1886
Creator:
Brown, Fred. H.
System:
The Portal to Texas History