Automobile Headlight. (open access)

Automobile Headlight.

Patent for an improved automobile headlight equipped with a movable lens and reflector to cast light down towards the roadway.
Date: November 14, 1922
Creator: Head, James M.
System: The Portal to Texas History
Apparatus for Building Concrete Structures. (open access)

Apparatus for Building Concrete Structures.

Patent for an apparatus for building concrete structures that includes the method or process of erection.
Date: November 14, 1922
Creator: Sands, Edward E.
System: The Portal to Texas History
Gasolene-Measuring Device. (open access)

Gasolene-Measuring Device.

Patent for a device which allows for gasoline to be measured while under constant flow.
Date: September 14, 1920
Creator: McKallip, John C.
System: The Portal to Texas History
Pump. (open access)

Pump.

Patent for a pump designed to draw liquid, such as oil, from a well.
Date: June 14, 1921
Creator: Jones, Oceola
System: The Portal to Texas History
Oil Well Screen. (open access)

Oil Well Screen.

Patent for a new oil-well screen that prevents sand from entering an oil or water well but will allow oil and water through.
Date: February 14, 1922
Creator: Dobson, John A.
System: The Portal to Texas History
Drill Bit (open access)

Drill Bit

Patent for improvements in drill bits, particularly in the application used in drilling in soft formations, such as clay, gumbo, or similar material. The purpose of the invention is to provide a way to prevent the sticking of material to the drill and drill collar while the drilling operation is being performed.
Date: February 14, 1922
Creator: Childs, William L.
System: The Portal to Texas History
Pneumatic Disk Gin. (open access)

Pneumatic Disk Gin.

Patent for an improved version of a pneumatic disk gin. It has been designed for "ginning fibrous material, such as seed cotton" (lines 13-14) and improves the separation of the cotton and the seeds with the use of its perforated disks.
Date: February 14, 1922
Creator: Garner, James C.
System: The Portal to Texas History
Seed Cleaner (open access)

Seed Cleaner

Patent for cleaning seeds. This invention will improve seed cleaning and catch unwanted seeds.
Date: February 14, 1922
Creator: Garner, James C
System: The Portal to Texas History