15 Matching Results

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Door-Hook. (open access)

Door-Hook.

Patent for a low-cost door hook designed for securing screen doors in a closed position which may be operated from either side of the door.
Date: August 30, 1921
Creator: Randazzo, Lillian
System: The Portal to Texas History
Rotary Plowshare (open access)

Rotary Plowshare

Patent for rotary plowshare that allows for improvements in plows. This detachable element rotates as it moves within the earth, pulverizing and disintegrating it while doing so. This rotary plowshare will accelerate cultivation and provide cost savings in time and labor.
Date: August 30, 1921
Creator: Billingsley, Rennie E.
System: The Portal to Texas History
Valve Structure (open access)

Valve Structure

Patent for valve improvements in controlling the flow of fluids under high pressure.
Date: August 30, 1921
Creator: Anderson, Jalmer
System: The Portal to Texas History
Dirigible Headlight (open access)

Dirigible Headlight

Patent for improving headlights for automobiles and other vehicles. Improvements include simpler, yet effective, connectivity between the head lamps and the steering mechanism.
Date: August 30, 1921
Creator: Davis, Robert E.
System: The Portal to Texas History
Nail-Staple for Barbed Wire. (open access)

Nail-Staple for Barbed Wire.

Patent for a tool meant to assist with attaching fence wire to posts. The nail-staple supports the wire during application to the post, which allows it to be done by a single person, saving time and labor.
Date: August 30, 1921
Creator: Washington, George
System: The Portal to Texas History
Attachment for Tractors. (open access)

Attachment for Tractors.

Patent for attachments in tractors. "This invention relates to tractors and has for its object the provision of means where by when the front axle and wheels of the tractor rise caused by rearing of the tractor, the clutch will be automatically disconnected and remain so until the front wheels of the tractor descend again into engagement with the ground. An important and more specific object is the provision in a tractor of a front axle formed n sections pivotally connected, one section being connected by suitable means with the clutch mechanism and the wheels serving as weights whereby when the tractor rears back and the front wheels leave the ground the axle sections will move relatively and exert a pull upon the means connected with the clutch whereby the clutch will be thrown out."
Date: August 30, 1921
Creator: Cholick, Joseph John
System: The Portal to Texas History
Method and Plant for Storing and Averaging Materials. (open access)

Method and Plant for Storing and Averaging Materials.

Patent for improved storing and retrieval of mining materials through the use of new mechanisms, procedures, and building structures.
Date: August 30, 1921
Creator: Cole, David & Bergman, Julius
System: The Portal to Texas History
Vehicle-Wheel. (open access)

Vehicle-Wheel.

Patent for a spring cushioned tire. The springs are positioned between the wheel ferry and the tread.
Date: August 30, 1921
Creator: Allan, William N.
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
Wire-Stretcher. (open access)

Wire-Stretcher.

Patent for a wire stretching device employed in fence construction. This device temporarily holds and stretches the wire between fence posts, while being secured. Through the operating lever and gripping jaw, the operator can effectively stretch the wire with minimal effort, while safeguarding against slipping.
Date: August 30, 1921
Creator: Greer, Benjamin J.
System: The Portal to Texas History
Peanut-Digger. (open access)

Peanut-Digger.

Patent for machine that extracts peanuts while avoiding losing nitrogen from the root in the process. Machine severs plants from the roots and raises the whole plant in order to release loose dirt, then gathers the. plants using a rake-like mechanism.
Date: August 30, 1921
Creator: Smith, Morman J. & Browder, Benjamin F.
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
Vehicle-Wheel (open access)

Vehicle-Wheel

Patent for improving vehicular tires by making them more durable for heavier vehicular use.
Date: August 30, 1921
Creator: Allan, William N.
System: The Portal to Texas History
Poultry-Crate. (open access)

Poultry-Crate.

Patent for an improved version of the Poultry-Crate, including illustrations. This version was designed with efficiency in mind, devised to be an inexpensive and highly portable invention.
Date: August 30, 1921
Creator: Tucker, William
System: The Portal to Texas History
Filing Cabinet (open access)

Filing Cabinet

Patent for filing cabinet designed to accommodate blue prints and large papers.
Date: August 30, 1921
Creator: Southwell, Charles R.
System: The Portal to Texas History