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Window-Frame Attachment
Patent for a window frame attachment of bars that shades can be attached to.
Date:
July 9, 1912
Creator:
Hillman, Annie M.
System:
The Portal to Texas History
Vehicle-Wheel
Patent for a vehicle wheel with spring spokes to absorb shocks.
Date:
July 9, 1912
Creator:
Hodges, Ludia H.
System:
The Portal to Texas History
Internal Combustion Engine.
Patent for improved internal combustion engine design that replaces puppet valves with slide valves to increase port area and speed, while reducing noise. Includes illustrations.
Date:
July 9, 1912
Creator:
Garfield, George M.
System:
The Portal to Texas History
Folding Bookcase
Patent for a folding bookcase that can be manufactured with any number of shelves.
Date:
July 9, 1912
Creator:
Fanning, Sam H.
System:
The Portal to Texas History
Extensible Ladder.
Patent for a new and useful Extensible Ladder. The improved Extensible Ladder is comprised of a ladder on each side of the structure, extendable platform, and guard rails.
Date:
July 9, 1912
Creator:
Putman, Lewis S.
System:
The Portal to Texas History