Chuck. (open access)

Chuck.

Patent for chucks that secure pipes, preventing movement when being cut or threaded, including illustrations.
Date: December 27, 1921
Creator: Castanie, William
System: The Portal to Texas History
Combination Dripper and Steeper (open access)

Combination Dripper and Steeper

Patent for a beverage steeper where a strainer is provided to hold the material used for preparation, such as tea or coffee. The strainer is designed to lower into the coffee pot to allow for steeping and can be raised out of the water and affixed to the top of the pot for draining.
Date: January 25, 1921
Creator: Nicholls, George Habberton
System: The Portal to Texas History
Oil-Burner. (open access)

Oil-Burner.

Patent for oil burner adapted for using heavy oil (with wide flat flame) for distribution (wide flat flame with adjustable burner tip).
Date: April 26, 1921
Creator: Chadbourne, Vaughn, R.
System: The Portal to Texas History
Self-Lining Interlocking Building-Block. (open access)

Self-Lining Interlocking Building-Block.

Patent for interlocking building-blocks that allow for the formation of strong insulated and properly lined walls without the use of skilled labor and with or without reinforcements.
Date: July 12, 1921
Creator: Merren, John Jay
System: The Portal to Texas History
Motorcycle-Stand. (open access)

Motorcycle-Stand.

Patent for a motorcycle stand that can be released manually through a lever near the saddle to lock the stand into place until the operator unlocks it.
Date: July 21, 1921
Creator: Swenson, Carl J.
System: The Portal to Texas History
Power-Hammer. (open access)

Power-Hammer.

Patent for a power hammer that can utilize any power source and only needs one person to operate it. The design also uses less parts, making it more affordable.
Date: December 13, 1921
Creator: Karlson, Eric Fritjof
System: The Portal to Texas History
Horse-Boot. (open access)

Horse-Boot.

Patent for a horse boot that covers and protects the hoof and pastern joint of a horse. It also protects the fetlock joint and practically the entire foreleg below the knee. This device allows for the horse to move without being hindered in any way, or without causing chafing. Both protecting the horse and providing additional comfort and safety.
Date: November 1, 1921
Creator: McKenzie, Joseph H.
System: The Portal to Texas History
Train-Line Valve. (open access)

Train-Line Valve.

Patent for "a cut out cock for pneumatic air brake systems." This invention allows the brake lines to be bled so that all brakes may be applied simultaneously.
Date: August 30, 1921
Creator: Weaver, Charles H.
System: The Portal to Texas History
Vehicle-Wheel. (open access)

Vehicle-Wheel.

Patent for an improved vehicle wheel with a demountable tire rim, so that tires can be easily placed on and taken off the wheel.
Date: December 27, 1921
Creator: Larson, Christian H.
System: The Portal to Texas History
Process of Heating Oil-Retorts and Apparatus Therefor. (open access)

Process of Heating Oil-Retorts and Apparatus Therefor.

Patent for "a method of securing even heating of oil retorts and the like throughout their length" and "a new apparatus, particularly intended for the heating and cracking of oils to convert the same into pyrolytic products". The invention may be used for any oil converting retort, but the patent description relates to the production of gasoline.
Date: August 16, 1921
Creator: Alexander, Clive M.
System: The Portal to Texas History
Valve. (open access)

Valve.

Patent for improvements to valves, specifically valves that have a sliding movement on the valve seat and to disk valves. The invention is to provide a valve of this type which is used in the interior of vats, tanks, or similar receptacles containing liquids.
Date: July 5, 1921
Creator: Spencer, Elmer H. & Block, A.C.
System: The Portal to Texas History
Game. (open access)

Game.

Patent for a "a game of skill, rather than a game of chance" (lines 11-12), albeit with elements of a game of chance, in the style of a carnival game. The game consists of a motorized, revolving model airplane and a circular arrangement of nets (one for each player); the airplane drops candy into the winning player's net.
Date: August 9, 1921
Creator: Auffurth, Erwin, Jr. & Hjerpe, Erick
System: The Portal to Texas History
Well Boring Apparatus. (open access)

Well Boring Apparatus.

Patent for a well-boring apparatus, an invention of a drilling apparatus using a form of power to transmit rotary movement to the string of a pipe. This invention is designed to lock the rotary elements against movement when the drill or pipe is moved or adjusted within its support.
Date: November 29, 1921
Creator: Boykin, Burwell, Jr.
System: The Portal to Texas History
Electric-Current Relay (open access)

Electric-Current Relay

Patent for Electric-Current Relay to allow capability of use with either a direct or alternating current. This is adapted for economical use in constant temperature apparatus. Further, this technology avoids the possibility of "sticking of relay movable contacts".
Date: July 19, 1921
Creator: Lorenz, Charles O.
System: The Portal to Texas History
Well Screen. (open access)

Well Screen.

Patent for a well screen device. The device can keep particulates out of the well water while also restricting water to flow into the well without being released back into the soil.
Date: February 1, 1921
Creator: McLean, Marrs
System: The Portal to Texas History
Building-Block. (open access)

Building-Block.

Patent for building block that is easily formed or molded. The building block forms tiers to easy move around and modify.
Date: February 1, 1921
Creator: Pace, Vara L.
System: The Portal to Texas History
Price-Tag Holder. (open access)

Price-Tag Holder.

Patent for "an improvement in price tag holders" (lines 9-10) such that the price tag holder is connected to a garment hanger, including one illustration.
Date: August 30, 1921
Creator: Newton, Andre Hutt
System: The Portal to Texas History
Marine Vessels (open access)

Marine Vessels

Patent for new and useful Improvements in Marine Vessels. Relates to marine vessels used for towing timber.
Date: January 4, 1921
Creator: Collier, Hugh R.
System: The Portal to Texas History
Hydraulic Swivel. (open access)

Hydraulic Swivel.

Patent for a hydraulic swivel valve, to allow water to flow to the drill stem for purposes of cooling and lubrication.
Date: March 22, 1921
Creator: Black, Lee J.
System: The Portal to Texas History
Grain-Car. (open access)

Grain-Car.

Patent for a grain car, with improved methods or loading and unloading the grain, as well as an easy method for converting the car to haul regular cargo.
Date: March 15, 1921
Creator: Dukes, Sandy
System: The Portal to Texas History
Templet. (open access)

Templet.

Patent for templets or steel models used in building ships. The steel can be easily shaped into parts.
Date: May 31, 1921
Creator: Nies, Gershom John
System: The Portal to Texas History
Oil Trap (open access)

Oil Trap

Patent for improvements to floating oil traps. Floating oil traps are used to catch excess oil floating on top of refinery discharge canals. These improvements include increased flexibility, thus allowing the trap to move with the flow of the water.
Date: November 22, 1921
Creator: Jones, Robert P.
System: The Portal to Texas History