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1,507 Matching Results
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Refrigerator
Patent for improvements for vacuum refrigerators such that cold air circulation and heat exclusion are improved, including illustrations.
Date:
June 27, 1922
Creator:
Knutson, William K.
System:
The Portal to Texas History
Trap.
Patent for a small animal trap that prevents injury to the animal. When the animals step on the pedal inside the enclosure, a door is automatically dropped. The animal is trapped inside the enclosure.
Date:
June 27, 1922
Creator:
Dinkins, Earl T.
System:
The Portal to Texas History
Core-Taking Device
Patent for improvements to a core-taking device which will "form a core, in the process of drilling, and embodies means for severing the core, when formed, and retaining the same in the core barrel until, it is withdrawn for inspection" (lines 13-17), including illustrations.
Date:
June 20, 1922
Creator:
Christian, Walton G.
System:
The Portal to Texas History
Mop
Patent for "a simple and durable construction of mop in which the fibre holding element consists of strands of twisted wire" (lines 9-11) designed such that the mop maintains its shape with or without the handle, including illustrations.
Date:
June 20, 1922
Creator:
Welch, James. S.
System:
The Portal to Texas History
Insect Destroyer.
Patent for an wheeled vehicle mounted insect destroyer that brushes insects from plants and destroys them utilizing flames, includes illustrations.
Date:
June 13, 1922
Creator:
Franks, John L.
System:
The Portal to Texas History
Baby Net Frame.
Patent for a frame that can support a baby net and can be collapsed for easy storage. The frame also features components that prevent collapse and provide stability when in use.
Date:
June 6, 1922
Creator:
Akers, Blessie E.
System:
The Portal to Texas History
Check-Writer.
Patent for a new check-writer machine capable of typewriting bank checks and similar documents with two sets of type, allowing for the printing of payee names, numerical amounts, and word amounts in a single movement.
Date:
June 28, 1921
Creator:
Wendelken, Charles
System:
The Portal to Texas History
Combination Furnace and Cook-Stove
Patent for combination furnace and cook-stove designed to burn charcoal and conserve fuel.
Date:
June 28, 1921
Creator:
Weaver, Bertha H.
System:
The Portal to Texas History
Cotton-Chopper.
Patent for effective removal of cotton plants in an alternating pattern with a standard chopping depth, distance, and speed, with illustrations.
Date:
June 28, 1921
Creator:
Antoni, Ernst J.
System:
The Portal to Texas History
Cotton-Picking Machine.
Patent for a cotton-picking machine that arranges the picking elements at different elevations and spaces them apart "so that while several plants will be picked at the same time, only one portion of a plant will be worked on at a time," (lines 14-17), minimizing disturbance of the plant.
Date:
June 28, 1921
Creator:
Becknell, George T.
System:
The Portal to Texas History
Demountable Rim
Patent for a Demountable Rim designed for automobile wheels where a tire can be attached to the demountable rim, secured with fasteners on the rim then is can attach to the wheel itself.
Date:
June 28, 1921
Creator:
Beynon, Arthur B.
System:
The Portal to Texas History
Lock and Key.
Patent for a lock which requires a key that is adjustable and difficult to duplicate in order to prevent lock picking.
Date:
June 28, 1921
Creator:
Dove, Bascom A.
System:
The Portal to Texas History
Measuring Vessel.
Patent for a measuring vessel that is meant to be used with a gasoline device described in patent application Serial No. 228,889.
Date:
June 28, 1921
Creator:
McKallip, John C.
System:
The Portal to Texas History
Method of Casting the Hulls of Ships From Concrete and Floating Said Hulls Into a Launching-Bay.
Patent for an improved, cost-effective method of releasing ship hulls from a mold via "hydrostatic means and floating said hull into the launching bay or channel" (lines 19-21) without the need for exterior scaffolding, including illustrations.
Date:
June 28, 1921
Creator:
Holmgreen, Julius H.
System:
The Portal to Texas History
Mold for Casting the Hulls of Concrete Ships.
Patent for an improved concrete hull mold that allows for durable and efficient hull molding without the need for scaffolding or disassembly once complete, with a dual-wall design that allows an intermediate work chamber during the molding process, including illustrations.
Date:
June 28, 1921
Creator:
Holmgreen, Julius H.
System:
The Portal to Texas History
Packer for Wells
Patent for a well packer, specifically for oil wells, for the purpose of facilitating the formation of watertight joints between outer and inner pipes.
Date:
June 28, 1921
Creator:
Fondren, Walter William
System:
The Portal to Texas History
Pipe Tongs.
Patent for pipe tongs for drilling wells using rotary systems. The tongs are designed to be securely held against the drill stem using a lever, making them simple and economical to manufacture.
Date:
June 28, 1921
Creator:
Hill, Richard D.
System:
The Portal to Texas History
Pneumatic Cushioned Tire.
Patent for improvements to pneumatic cushioned tires, including guards to protect and shield the sides against abrasion.
Date:
June 28, 1921
Creator:
Kerr, Augustus Hallawell; Smith, J. A.; Atkinson, J. M.; Dacus, J. A. & Coley, W. L.
System:
The Portal to Texas History
Process and Apparatus for the Utilization of Heat in Oil-Engines.
Patent for an invention that improves the utilization of waste or surplus heat of internal combustion engines, specifically oil-burning engines of the Diesel type. This invention will assist diesel engines to run satisfactorily on lower or heavier-grade engine oils. This assists in the efficiency and production of Diesel engines.
Date:
June 28, 1921
Creator:
Lucke, Herbert R.
System:
The Portal to Texas History
Refrigerator-Door.
Patent for individual doors for compartments within a refrigerator, to protect items from being exposed to warm air when the refrigerator door is ajar. This patent also provides for the ability to apply doors as attachments to refrigerators without pre-installed compartment doors.
Date:
June 28, 1921
Creator:
Jurek, Martin
System:
The Portal to Texas History
Roadway.
Patent for an improved roadway that utilizes concrete tracks and asphalt or bitumen filler to create a grooved, hard, and durable surface, with illustrations.
Date:
June 28, 1921
Creator:
Moore, Stuart B.
System:
The Portal to Texas History
Vegetable-Grading Apparatus.
Patent for a vegetable grading apparatus that delivers select grades of vegetables to the picker, separating the majority of vegetables into containers. The apparatus prevents bruising of vegetables and allows the picker to see all sides of the vegetables.
Date:
June 28, 1921
Creator:
Rigney, Samuel C.
System:
The Portal to Texas History
Display-Stand.
Patent for incorporating vertical shaft in display stands for posters advertising motion pictures and merchandise, with illustrations.
Date:
June 23, 1921
Creator:
Gates, Norwood
System:
The Portal to Texas History
Attaching-Ring.
Patent for an attaching ring to connect a boiler to a water heater jacket that is described in pending application Serial No. 304,041.
Date:
June 21, 1921
Creator:
Fowles, Alfred T.
System:
The Portal to Texas History