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Animal Trap.
Patent for Animal Trap especially adapted for the extermination of mice and similar rodents.
Date:
1920-09-5
Creator:
Fredrick, Willaim.
System:
The Portal to Texas History
Fuse Block
Patent for improvements to Patent No. 1113528. Invention provides a fuse block where the fuses can be replaced by a lineman without being in close proximity to the primary circuit wires. Invention also allows various types of fuses to be used.
Date:
May 3, 1921
Creator:
Anderson, Lou Belle
System:
The Portal to Texas History
Insecticide-Holder.
Patent for an insecticide holder having improved and "novel means for discharging the insecticide" (lines 10-11).
Date:
May 3, 1921
Creator:
Irwin, Herbert G.
System:
The Portal to Texas History
Lock for Automobiles
Patent for a new inexpensive, secure, and convenient to use lock for automobiles to be secured against theft, or use, while the lock is attached.
Date:
May 3, 1921
Creator:
Godbey, Walter H., Jr.
System:
The Portal to Texas History
Locking Device for Motor-Vehicles.
Patent for motor vehicle locking device to prevent theft or unauthorized use of motor vehicle. Suited for motor vehicles with the "throttle and spark levers below the steering wheel" (lines 18-19).
Date:
May 3, 1921
Creator:
Harris, Robert E.
System:
The Portal to Texas History
Removable Pass-Book.
Patent for a book with a removable cover that lies flat when open and fits within a pocket. Particularly suited for bank books, also known as passbooks.
Date:
May 3, 1921
Creator:
Exline, Marcus P.
System:
The Portal to Texas History
Rolling Fender
Patent for improvements in rolling fenders. The invention can be attached to an earth working device, such as a cultivator, to prevent clods of dirt being thrown and crushing small plants. Multiple discs will crush the clods and prevent the dirt from sticking to the rolling fender.
Date:
May 3, 1921
Creator:
Wright, Joseph Hansel
System:
The Portal to Texas History
Self-Closing Bundle-Receptacle.
Patent for a receptacle basket that attaches to the side of an automobile and closes automatically using springs and hinges.
Date:
May 3, 1921
Creator:
Cardwell, Charles E.
System:
The Portal to Texas History
Adjustable Flat Die.
Patent for improved adjustable flat dies which provide different sizes of cutting dies to the cutting device.
Date:
May 10, 1921
Creator:
Wright, John G.
System:
The Portal to Texas History
Air-Storage-Tank Liquid-Dispensing Device.
Patent for an air storage tank liquid dispending device which is convenient and economically better to pull liquid from wells, buried tanks, etc.
Date:
May 10, 1921
Creator:
Posa, Emit M.
System:
The Portal to Texas History
Book-Support and Writing-Table.
Patent for book support and writing table that adjusts to the item being used by the person. The tray is able to hold the item either a book or writing materials while adjusting to the user's needs. The book support and writing table can be folded to occupy little space.
Date:
May 10, 1921
Creator:
Taylor, Henry S.
System:
The Portal to Texas History
Clutch and Transmission Mechanism
Patent for a new and useful improvements in a clutch and transmission mechanism specially applicable to motor vehicles. It has been designed for the purpose of operating the clutch and transmission for effecting changes of speed in which the speed desired can be selected in advance and then obtained by an automatic shifting of the transmission gears, when the clutch is disengaged through the operation of the clutch controlling lever.
Date:
May 10, 1921
Creator:
Mottier, Walter F.
System:
The Portal to Texas History
Compressed-Air-Feed Liquid-Container.
Patent for compressed air feed liquid container uses compressed air to move the liquid through tubes and out the pipe.
Date:
May 10, 1921
Creator:
Posa, Emit M.
System:
The Portal to Texas History
Cultivator-Fender.
Patent for an improvement to cultivator-fenders that prevents rocks and other debris from being throws about while plowing.
Date:
May 10, 1921
Creator:
Calk, Alonzo E.
System:
The Portal to Texas History
Flour-Milling Machinery.
Patent for flour milling machinery with reduced costs of equipment and operation, less required space, and improved quality and quantity of flour.
Date:
May 10, 1921
Creator:
Smith, George T.
System:
The Portal to Texas History
Ink-Bottle
Patent for an ink bottle with screw threads allowing it to be screwed and unscrewed into a holder or desk; ink bottle can also be removed for cleaning or filling.
Date:
May 10, 1921
Creator:
Kayser, Mary Louise
System:
The Portal to Texas History
Lifting-Jack
Patent for an improvement made to lifting jack machinery that raises automobiles for repairs. The patent prevents the axle from slipping in circumstances where the vehicle is on slippery grounds or parked on a hill. Includes illustrations.
Date:
May 10, 1921
Creator:
Watson, Chester A.
System:
The Portal to Texas History
Oil-Stove
Patent for improvements in oil burner stoves.Pertains more to oil stoves with movable burners so that the flame intensity can be adjusted or extinguished.
Date:
May 10, 1921
Creator:
Cook, Thomas Edward
System:
The Portal to Texas History
Pump for Hydraulic Presses
Patent for a hydraulic pump that drives at a uniform speed as the pressure of the press increases, and connects the pistons with two pairs of cylinders moving in opposite cycles.
Date:
May 10, 1921
Creator:
Henry, Nelson B.
System:
The Portal to Texas History
Cotton-Cultivator.
Patent for an improved cultivator used for tillage when the plows are not in the ground. The cultivator can also lighten the heaviness felt by the operator while the plow is being used.
Date:
May 17, 1921
Creator:
Barnett, James Samuel
System:
The Portal to Texas History
Draft Attachment for Motor-Vehicles.
Patent for a draft attachment by which a motor vehicle may "pull itself free when its traction wheels have become embedded in a soft or muddy road" (lines 14-16).
Date:
May 17, 1921
Creator:
Worsham, Louis W.
System:
The Portal to Texas History
Gradometer.
Patent for a gradometer "which will accurately indicate under the most varying and unstable conditions the inclination and declination at which any moving body is traveling" (lines 10-13). The gradometer is "particularly adapted for use on motor vehicles" (lines 15-16).
Date:
May 17, 1921
Creator:
Hall, Sidney Wilson
System:
The Portal to Texas History
Guide for Drive-Chains.
Patent for a mechanism designed to prevent a guide chain from being displaced from the wheel(s) of its parent machine.
Date:
May 17, 1921
Creator:
Johnston, Horace G.
System:
The Portal to Texas History
Holder for Dental X-Ray Films.
Patent for dental X-Ray holders that securely hold the film in place and categorize the X-Rays into series that comprise views of the whole mouth.
Date:
May 17, 1921
Creator:
Martin, James Madison
System:
The Portal to Texas History