Method of Sealing the Walls of Deep Wells (open access)

Method of Sealing the Walls of Deep Wells

Patent for a new and useful method of dealing the walls of deep wells in which the means for lining oil wells by the use of the customary metal casing is avoided, the cost is very materially reduced, and numerous expenses and failures are avoided.
Date: November 29, 1921
Creator: Nolan, William E.
System: The Portal to Texas History
Underreamer for Reaming Out Producing-sands. (open access)

Underreamer for Reaming Out Producing-sands.

Patent for "underreaming tools or bits which can be adjusted from the top of the well and which can be set at the required angle..."
Date: September 21, 1920
Creator: Lambeth, Acey L.
System: The Portal to Texas History
Display-Stand. (open access)

Display-Stand.

Patent for incorporating vertical shaft in display stands for posters advertising motion pictures and merchandise, with illustrations.
Date: June 23, 1921
Creator: Gates, Norwood
System: The Portal to Texas History
Toy (open access)

Toy

Patent for improvements in the construction, arrangement, and combination of parts used in building articulated toy snakes that mimic the animal's movement. The patent and illustrations describe the shapes of the toy's sections and the manner of their hinged connection to one another.
Date: September 19, 1922
Creator: Davis, William Theodore
System: The Portal to Texas History
Paint. (open access)

Paint.

Patent for paints for roofs and for barns to prevent leaks and efficient in preserving the material of buildings at a relatively small costs.
Date: July 20, 1920
Creator: Watson, Grover C.
System: The Portal to Texas History
Process of Mining Sulfur. (open access)

Process of Mining Sulfur.

Patent for innovations in the underground fusion or Frasch process of mining sulfur, "which comprises conducting an appropriate fusing medium [such as hot water] into the formation containing the sulfur deposit and thereby melting the sulfur" (lines 91-95). Central to the innovations is the use of a compressed gas to "eliminate or largely reduce heat losses in porous rock and exhausted sulfur regions at the higher levels of the mine where the presence of the hot water is of no benefit so far as melting sulfur is concerned" (lines 55-60).
Date: December 27, 1921
Creator: Drachenberg, August Toby
System: The Portal to Texas History
Apparatus for Separating or Concentrating Ores (open access)

Apparatus for Separating or Concentrating Ores

Patent for improvements in apparatus for separating or concentrating ores through a flotation method.
Date: August 31, 1920
Creator: Cole, David
System: The Portal to Texas History