29 Matching Results

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Molding Apparatus (open access)

Molding Apparatus

Patent for an improved model of a molding apparatus for producing blocks of concrete that is cheaper to manufacture and more durable and adjustable than its predecessor.
Date: March 20, 1920
Creator: Nelson, William E.
System: The Portal to Texas History
Valve-Lifter (open access)

Valve-Lifter

Patent for an improved device that can be applied to a valve spring plate without losing grip.
Date: April 8, 1920
Creator: Chaney, Robert
System: The Portal to Texas History
Battery-Terminal-Fastening Device (open access)

Battery-Terminal-Fastening Device

Patent for improvements to battery terminal fastening devices. Illustration is included.
Date: October 12, 1920
Creator: Hawkins, Alda F.
System: The Portal to Texas History
Derrick. (open access)

Derrick.

Patent for improvements to derricks for oil wells.
Date: June 9, 1920
Creator: Babek, Frank
System: The Portal to Texas History
Apparatus For Protecting And Preserving Poles And The Like (open access)

Apparatus For Protecting And Preserving Poles And The Like

Patent for add-on device to shield existing electric posts and poles from decay over time and weather damage.
Date: September 21, 1920
Creator: Lewis, Thomas E.
System: The Portal to Texas History
Automobile-Radiator (open access)

Automobile-Radiator

Patent for automobile radiator with protective members for the water-containing chambers.
Date: November 30, 1920
Creator: Herold, Harry H.
System: The Portal to Texas History
Adjustable Tire Mold (open access)

Adjustable Tire Mold

Patent for a tire mold that improves the viability of a tire mold due to the adjustable levers used during the tire curing process.
Date: December 7, 1920
Creator: Hibbs, Cassell D.
System: The Portal to Texas History
Covertible Stock and Freight Car. (open access)

Covertible Stock and Freight Car.

Patent for an improved process of constructing convertible stock and freight train cars, including illustrations.
Date: May 4, 1920
Creator: Wyatt, Everett
System: The Portal to Texas History
Auxiliary Door-Lock (open access)

Auxiliary Door-Lock

Patent for an auxiliary door lock, that may be used with any type of door, and that is portable, with illustrations.
Date: March 2, 1920
Creator: Shirley, William Arthur
System: The Portal to Texas History
Double-Lever Brake. (open access)

Double-Lever Brake.

Patent for "new and useful improvements in Double-Lever Brakes." (lines 6-7) and how the invention will provide more power to the brake and equally distribute that power. Includes illustrations.
Date: March 23, 1920
Creator: Roberts, George P.
System: The Portal to Texas History
Automobile-Signal. (open access)

Automobile-Signal.

Patent for a door-mounted automobile turn signal that swings out on an arm to appear at a right angle to the vehicle and is operated by the driver's knee or elbow. The signal is illuminated by an electric lamp and sounds the car horn when deployed.
Date: August 31, 1920
Creator: Carnes, Sam D.
System: The Portal to Texas History
Battery-Plate and Terminal Connection (open access)

Battery-Plate and Terminal Connection

Patent for improvements on a battery plate and terminal connections. Plate lugs and the terminal for the battery are a solid piece to fit more battery sizes and prevent the lugs from breaking off.
Date: May 4, 1920
Creator: Hawkins, Alda F.
System: The Portal to Texas History
Advertising Attachment for Scales. (open access)

Advertising Attachment for Scales.

Patent for improvements in advertising attachments for scales to "provide an attachment of the character specified, wherein a series of display members are provided, mounted to be moved into different positions, to bring different matter into different positions, and controlled to movement by the stepping onto the weighing platform of the one to be weighed." (lines 11-18)
Date: July 13, 1920
Creator: Funk, Arthur Neal
System: The Portal to Texas History
Comfort and the Like. (open access)

Comfort and the Like.

Patent for a loosely woven material that covers household furnishings so it can be easily cleaned and then reattached.
Date: July 27, 1920
Creator: McNatt, Lucie R.
System: The Portal to Texas History
Cold Process of Repairing Radiators of Internal-Combustion Engines. (open access)

Cold Process of Repairing Radiators of Internal-Combustion Engines.

Patent for repairing breaks in radiator pipes caused by freezing, by which can be repaired quickly and efficiently at a low cost.
Date: May 18, 1920
Creator: Henderson, Thomas E.
System: The Portal to Texas History
Paper Clip. (open access)

Paper Clip.

Patent for new and useful improvements in a paper clip. This invention relates to a paper clip a has for its principal object the production of a simple and efficient device for holding numbers sheets of paper together.
Date: October 21, 1920
Creator: Holt, Frank P.
System: The Portal to Texas History
Battery Terminal Fastening (open access)

Battery Terminal Fastening

Patent for fastening "the rubber caps or tops on the cells of storage batteries in various ways." (Lines 12-14.)
Date: May 5, 1920
Creator: Hawkins, Alda F.
System: The Portal to Texas History
Valve Control for Radiator Drain-Cocks. (open access)

Valve Control for Radiator Drain-Cocks.

Patent for "controlling devices for operating the valves of radiator drain cocks and for cleaning the drain cock pipe, and the object is to provide a convenient device by which the drain cock valve can be easily and quickly closed or opened and by which the drain pipe can be cleaned and kept cleaned." (lines 10-16)
Date: July 27, 1920
Creator: Brandt, Herman
System: The Portal to Texas History
Wrench. (open access)

Wrench.

Patent for new and useful improved invention of wrenches include both pipe wrenches and general-purpose wrenches particularly.
Date: October 26, 1920
Creator: Kirkpatrick, Otey R.
System: The Portal to Texas History
Tractor Turning Mechanism. (open access)

Tractor Turning Mechanism.

Patent for a tractor turning mechanism that will allow tractors to turn at any angle up to a right angle by locking one of the driving ground wheels into a pivot point for the other wheels of the tractor.
Date: February 17, 1920
Creator: Chenoweth, William B.
System: The Portal to Texas History
Hydrocarbon-Burner. (open access)

Hydrocarbon-Burner.

Patent for "new and useful improvements in Hydrocarbon-Burners" (lines 6-7) including instructions and illustrations.
Date: February 10, 1920
Creator: Wynne, William P. & Wynne, James Harry
System: The Portal to Texas History
Tire-Casing. (open access)

Tire-Casing.

Patent for a new type of puncture-proof tire casing.
Date: August 31, 1920
Creator: Anderson, Arthur V. & Morgan, Alfred M.
System: The Portal to Texas History
General-Delivery Post-Office Cabinet. (open access)

General-Delivery Post-Office Cabinet.

Patent for a postal mail cabinet in which the arrangement of the compartments can be adjusted and allow for consideration of both the surname and given name of the recipient.
Date: August 31, 1920
Creator: Conine, James B.
System: The Portal to Texas History
Skeleton Structure. (open access)

Skeleton Structure.

Patent for Skeleton Structures or convertible structures able to be used different agricultural uses that "may be disassembled and reassembled in a different shape either by using the same parts or by adding additional parts," (line 25-28) including illustrations.
Date: December 14, 1920
Creator: Dietz, Paul, A.
System: The Portal to Texas History