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
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
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
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
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