Electric Belt (open access)

Electric Belt

Patent for improvements in electric belts.
Date: July 5, 1887
Creator: Williams, Robert E.
System: The Portal to Texas History
Convertible Mixing and Cleaning Machine (open access)

Convertible Mixing and Cleaning Machine

Patent for convertible mixing and cleaning machine. Illustrations included.
Date: July 5, 1904
Creator: Stacey, John W.
System: The Portal to Texas History
Double-Stream Draft-Arm. (open access)

Double-Stream Draft-Arm.

Patent for a double stream draft arm for soda fountains, which reduces wear and allows easier cleaning.
Date: July 5, 1910
Creator: Dosterschill, Bernard K.
System: The Portal to Texas History
Antileak Composition. (open access)

Antileak Composition.

Patent for improvements in antileak composition in order to prevent leaks in liquid holding containers like radiators, boilers, etc.
Date: July 5, 1921
Creator: Shrum, Will N.
System: The Portal to Texas History
Paving Apparatus. (open access)

Paving Apparatus.

Patent for "a device or apparatus for transmitting the vibrations of a vibrating machine...for the purpose of solidifying the paving by driving out air and water and surplus moisture" (lines 12-18), including illustration.
Date: July 5, 1921
Creator: Stubbs, Robert C.
System: The Portal to Texas History