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Process of and Apparatus for Progressive Electrostatic Separation of Comminuted Material
Patent for a new process and equipment that improves upon prior work to separate comminuted materials. This patent explores the new process which "provides means for moving the electro-static waves or charges across the line of normal movement of the material upon a support of between two opposing stationary electrodes by so directing and controlling the electric charges, that each bar electrode is charged in succession across the deck and at an angle to the movement of such deck, whereby the difficulties in separating certain classes of comminuted material with moving electrodes are overcome" (lines 32-42).
Date:
April 26, 1921
Creator:
Sutton, Henry M.; Steele, Walter L. & Steele, Edwin G.
System:
The Portal to Texas History
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
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
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
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
Priming-Cup
Patent for an improved version of the priming cup "shown in Patent No. 1,329,464, granted February 3, 1920" (lines13-14). Includes illustrations.
Date:
April 5, 1921
Creator:
Martinek, Stanley A.
System:
The Portal to Texas History
Pipe-Coating Machine.
Patent for a pipe coating machine which coats the pipes used for oil and gas pipe lines with a safety material like tar.
Date:
April 26, 1921
Creator:
Taber, Rock G.
System:
The Portal to Texas History
Building Construction.
Patent for new and improved building constructions which will help the economy, steadiness, benefit, and rapidity of erection.
Date:
April 26, 1921
Creator:
Eldridge, Leonard L.
System:
The Portal to Texas History
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
Means For Protecting Vaults.
Patent for protecting bank vaults by using metal shells (that are adapted to receive frangible gas containers containing asphyxiating or other disabling gas) as inner linings inside and next to the brick wall of the vault. The metal shells containing the gas containers will break upon contact when a person or persons are trying to breach the outer (brick wall) to gain access to the bank vault.
Date:
April 5, 1921
Creator:
Bumpass, Leonard E.
System:
The Portal to Texas History
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
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
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
Automatic Sand Trap
Patent for an automatic sand trap related to automatic devices for separating suspensions into two products and is concerned with the separation of sand from water for dam building and like purposes.
Date:
April 12, 1921
Creator:
Allen, Charles
System:
The Portal to Texas History
ATTACHMENT FOR INTERNAL COMBUSTION MOTORS
Patent for an Attachment for Internal Combustion Motors. This new attachment provides many improvements in the regulation of auxiliary air, whether it enters or leaves the internal combustion motor (Shine). It also regulates hot or cold air, or can shut off the air supply entirely (Shine).
Date:
April 26, 1921
Creator:
Shine, John
System:
The Portal to Texas History
Combined Brace and Angle-Bar for Vehicle-Bodies.
Patent for braces and angle bars on vehicle bodies that improves the brace to hold buggy beds together with illustration that shows improvements. "When these braces are secured on the bed they will prevent the adjacent parts of the bed from splitting, spreading or dropping down and they will hold the ends and sides, as well as the bottom of the bed securely in place" (lines 61-66).
Date:
April 5, 1921
Creator:
Kilpatrick, Robert L.
System:
The Portal to Texas History
Condiment-Holder.
Patent for condiment holder that can be filled with different condiments that can be dispensed separately or both at the same time. This design is also more durable, efficient, and low cost.
Date:
April 26, 1921
Creator:
Peters, Shafeh
System:
The Portal to Texas History
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
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
Digging-Machine.
Patent for a digging machine specialized in breaking hard soil and creating ridges that attempt to reduce erosion.
Date:
April 5, 1921
Creator:
Holly, Charles
System:
The Portal to Texas History
Automobile-Fender
Patent for improvements in automobile-fenders. A simple and efficient cushioning fender for breaking.
Date:
April 19, 1921
Creator:
Dodson, George W.
System:
The Portal to Texas History
Necktie-Holder
Patent for improvements to necktie-holders, particularly to prevent the neck-tie from sliding down toward the lower portion of the collar.
Date:
April 21, 1921
Creator:
Potter, Arthur C.
System:
The Portal to Texas History
Garment-Hanger.
Patent for a new garment hanger with supported arms that can be folded for storage, including illustrations.
Date:
April 5, 1921
Creator:
Morton, John R.
System:
The Portal to Texas History
Grapple for Oil-Wells and the Like.
Patent for an improved grapple device that can help recover rigging parts from oil wells, including illustrations.
Date:
April 19, 1921
Creator:
Reed, Clarence E.
System:
The Portal to Texas History