622 Matching Results

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Mop. (open access)

Mop.

Patent for an attachment that can be added to a standard broom which allows the broom to function as a mop.
Date: October 10, 1922
Creator: Glenn, William H.
System: The Portal to Texas History
Dynamo-Electric Machine (open access)

Dynamo-Electric Machine

Patent for a new and useful improvement in a dynamo-electric machine to provide a rotor in which certain coils of the winding are automatically cut out and utilized as open coils to prevent the turns in those coils from having a demagnetizing action. Another objective is to provide a rotor whose core consists of non-magnetic material to refuce the inductance and self-induction of the winding and the sparking at the commutator due to the shifting of the magnetic field and the neutral or point of commutation.
Date: January 10, 1922
Creator: Kuhn, Preston Holmes
System: The Portal to Texas History
Insect Destroyer. (open access)

Insect Destroyer.

Patent for an insect destroyer, specifically for the destruction of boll weevils and similar insects. The invention uses heat as the destruction agency and is portable, designed to travel along a row of plants.
Date: January 10, 1922
Creator: Rannefeld, Otto & Halbert, Robert F.
System: The Portal to Texas History
Method of Purifying Oils (open access)

Method of Purifying Oils

Patent for a new and useful improvement in the method of purifying oils, particularly applicable to cracked gasoline.
Date: January 10, 1922
Creator: Alexander, Clive M.
System: The Portal to Texas History
Roller-Bearing Swivel Wrench Plate. (open access)

Roller-Bearing Swivel Wrench Plate.

Patent for improvements on Roller-Bearing Swivel Wrench Plates, including illustrations. The goal of this invention is to make the plates more efficient "for use with any suitable fishing tool, or bit for use in oil fields or water well drilling" (lines 12-14).
Date: January 10, 1922
Creator: Harralson, Charles L.
System: The Portal to Texas History
Sash Lock (open access)

Sash Lock

Patent for an improvement for window sash locks, with an improved ability to hold windows in place.
Date: January 10, 1922
Creator: Brown, John A.
System: The Portal to Texas History
Steering Device and Brake for Tractors (open access)

Steering Device and Brake for Tractors

Patent for new and useful improvements for the steering and stopping of tractors, particularly for the machines that are extremely difficult and laborous to manually steer and apply brakes. The invention permits the controlling of the direction of movement of the behicle by disconnecting the source of power from the wheel(s) at one side while those at the other side contrinue to rotate under power. The invention allows for braking to be used to slow the motion of the tractor on downward grade or when it is desired to stop.
Date: January 10, 1922
Creator: Lewis, Otto Leroy
System: The Portal to Texas History
Tractor. (open access)

Tractor.

Patent for improvements to a previous patent application for a tractor (Serial No. 399599, filed 1920-07-28). The improvements include rearrangements of parts for the driving wheels from the front to the rear and the rearrangement of the transmission housing.
Date: January 10, 1922
Creator: Lewis, Otto Leroy
System: The Portal to Texas History
Adjustable Flat Die. (open access)

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. (open access)

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. (open access)

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
Can Opener (open access)

Can Opener

Patent for a can opener specifically shoe polish boxes. It is used as an opener that will not require the use of rivets, openings in the material, or any other means whereby air may enter the can.
Date: May 10, 1921
Creator: Searcy, Peter B.
System: The Portal to Texas History
Clutch and Transmission Mechanism (open access)

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. (open access)

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. (open access)

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. (open access)

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 (open access)

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 (open access)

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 (open access)

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 (open access)

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
Comb. (open access)

Comb.

Patent for an electronic heating comb providing an electric heating element.
Date: November 10, 1920
Creator: Caneavri, Joseph Ping.
System: The Portal to Texas History
Automatic Train-Stopping Mechanism. (open access)

Automatic Train-Stopping Mechanism.

Patent for an affordable and easily operable mechanical train stopper designed to be installed directly on a locomotive.
Date: August 10, 1920
Creator: Evans, Alva A.
System: The Portal to Texas History
Dynamo Electric Machine (open access)

Dynamo Electric Machine

Patent for Improvement of Dynamo-Electric Machines. The improvement turns electric energy into mechanical entry.
Date: August 10, 1920
Creator: Reynolds, William T. & Reynolds, Bruce A.
System: The Portal to Texas History
Linting Machine. (open access)

Linting Machine.

Patent for a linting machine (Carver type) that contains an air pocket at the end of the passage to prevent cotton from clogging the machine.
Date: August 10, 1920
Creator: Woodrow, George N. & Bruce, Thomas D.
System: The Portal to Texas History