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Saw-Table Gage. (open access)

Saw-Table Gage.

Patent for a saw-table cutting stop that can be very quickly set and which automatically indicates the distance from the stop to the saw.
Date: April 19, 1921
Creator: Krocker, Adolf G.
System: The Portal to Texas History
Treatment of Mined Sulfur. (open access)

Treatment of Mined Sulfur.

Patent for a method to improve the free burning properties of mined sulfur by carbonizing the oil and eliminating carbon.
Date: April 19, 1921
Creator: Bacon, Raymond Foss, 1880-1954.
System: The Portal to Texas History
Treatment of Mined Sulfur. (open access)

Treatment of Mined Sulfur.

Patent for heating sulfur under appropriate conditions in order to carbonized oil contained within, allowing stationary sulfur to burn without difficulty or interference from carbon.
Date: April 19, 1921
Creator: Bacon, Raymond Foss, 1880-1954.
System: The Portal to Texas History
Treatment of Ores. (open access)

Treatment of Ores.

Patent for the treatment of ores which has a improvised process of chloridizing ores, concentrates, and other metallurgical products.
Date: April 19, 1921
Creator: Hirt, Jules Hector
System: The Portal to Texas History
Truck. (open access)

Truck.

Patent for an improved truck in which the load can be moved to be easily loaded or unloaded by one person, including illustrations.
Date: April 19, 1921
Creator: Ortgier, Walter C.
System: The Portal to Texas History
Truss. (open access)

Truss.

Patent for a new truss designed to hold ruptures without discomfort, suitable for single and double ruptures. The truss features a novel spring plate, soft rubber pads, and adjustable waterproof bands.
Date: April 19, 1921
Creator: Downie, James H.
System: The Portal to Texas History
Wall Construction (open access)

Wall Construction

Patent for a relatively simple constructed wall that is built using concrete slabs. It is constructed in a manner that requires less material thus resulting in a wall that is hollow all the while providing sufficient strength to hold weight and pressure. Includes illustrations.
Date: April 19, 1921
Creator: Needham, Edward F.
System: The Portal to Texas History
Washing-Machine (open access)

Washing-Machine

Patent for an improved clothes containing basket within washing machines that is longer-lasting and less likely to become imbalanced. The device increases agitation of clothes and water.
Date: April 19, 1921
Creator: Seifert, John W.
System: The Portal to Texas History
Carbon-Removing Tool (open access)

Carbon-Removing Tool

Patent for a new and improved carbon removing tool, which allows for the removal of carbon from the pistons of internal combustion engines. Includes illustrations.
Date: April 12, 1921
Creator: Slagle, Eugene H.
System: The Portal to Texas History
Cotton-Chopper (open access)

Cotton-Chopper

Patent for a machine that can be drawn along a row of cotton to chop the adjacent plants and cultivate the ground under the machine. The device is height adjustable by the operator.
Date: April 12, 1921
Creator: Schwab, Bruno; Schneider, Richard & Hoegenauer, Haver
System: The Portal to Texas History
Dredge-Pump (open access)

Dredge-Pump

Patent for new and useful improvements to Dredge-Pumps. The pump is used to draw up sand and gravel from the bottom of a river.
Date: April 12, 1921
Creator: Stenberg, Anders Gustaf
System: The Portal to Texas History
Electrically-Controlled Puller For Oil-Well Casings. (open access)

Electrically-Controlled Puller For Oil-Well Casings.

Patent for an improved oil well casing puller that has electromagnets that will lock against the inside of the casing and be pulled out of the well. The pulley within the casing can be used accordingly and can also be locked with the casing or released from it.
Date: April 12, 1921
Creator: Dooley, William D.
System: The Portal to Texas History
Feed Spout Barrier (open access)

Feed Spout Barrier

Patent for "a feel spout barrier for slime thickeners, settling tanks, separating tanks and the like" (lines 8-10) with instructions and illustrations.
Date: April 12, 1921
Creator: Allen, Charles
System: The Portal to Texas History
Hanger For Car-Doors. (open access)

Hanger For Car-Doors.

Patent for a hanger for use in car doors to prevent jamming or binding during opening or closing.
Date: April 12, 1921
Creator: Jordan, Charles H.
System: The Portal to Texas History
Magnetically-Operated Oil-Well Fishing-Tool. (open access)

Magnetically-Operated Oil-Well Fishing-Tool.

Patent for an electrically operated tool designed to retrieve lost oil pump plungers or casings from within oil wells.
Date: April 12, 1921
Creator: Dooley, William D.
System: The Portal to Texas History
Memorandum-Calendar. (open access)

Memorandum-Calendar.

Patent for providing a memorandum calendar pad to be used for 2 consecutive years, that includes a filing wire of which the leaves of the pad can be attached to or detached from the calendar stand, and that will be inexpensive to make and easy to operate.
Date: April 12, 1921
Creator: Schramm, Henry A. & Hawkins, Jackson D.
System: The Portal to Texas History
Metallic Mold for Concrete Walls (open access)

Metallic Mold for Concrete Walls

Patent for metallic molds for concrete or plastic walls. These molds have been improved in terms of their construction. Includes illustrations.
Date: April 12, 1921
Creator: Bolton, George W.
System: The Portal to Texas History
Vehicle-Wheel (open access)

Vehicle-Wheel

Patent for new and useful improvements to the Vehicle-Wheel. Tire may be formed into a disk wheel constructed with nuts, bolts, rivets, and screws to compensate for any regular and irregular pressure stresses a tire may be subjected to on a road. A further improvement is to provide a more resilient disk wheel to have more durability and longer use on the road.
Date: April 12, 1921
Creator: Allan, William N.
System: The Portal to Texas History
Well-Tubing Catcher (open access)

Well-Tubing Catcher

Patent for an improved well tubing catcher, which "provides an equal and positive bearing surface for the gripper slips or dogs in all their adjusted positions" (lines 16-18), including illustrations.
Date: April 12, 1921
Creator: Wilson, Robert A.
System: The Portal to Texas History
Automatically-Operated Gate and Door (open access)

Automatically-Operated Gate and Door

Patent for improvements on automatically opened doors and gates for vehicular passing. The improvements will allow the automatic opening of gates and doors without human attention or interference.
Date: April 9, 1921
Creator: Brown, George W.
System: The Portal to Texas History
Adjustable Luggage-carrier (open access)

Adjustable Luggage-carrier

Patent for a luggage carrier that attaches to vehicles to carry packages of various sizes. Includes illustrations.
Date: April 5, 1921
Creator: Green, John R.
System: The Portal to Texas History
Aircraft (open access)

Aircraft

Patent for Improvements to aircraft steering. The invention allows the pilot to adjust the center of mass.
Date: April 5, 1921
Creator: Johnson, Louis V.
System: The Portal to Texas History
Animal-Trap (open access)

Animal-Trap

Patent for an animal trap which is to be sprung by the animal when the bait is touched. It is constructed in such a manner that the animal will be instantly killed. The metal parts of the trap are to create a strong and durable trap and to be manufactured at a small expense.
Date: April 5, 1921
Creator: Brewington, Philip Jennings
System: The Portal to Texas History
Automatic Separator and Evaporator. (open access)

Automatic Separator and Evaporator.

Patent for an improved automatic separator and evaporator which controls the intake with an included air-lift or jet-ejector, including illustrations.
Date: April 5, 1921
Creator: Allen, Charles
System: The Portal to Texas History