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Process For The Reduction Of Iron And Lead Ores.
Patent for a process that reduces iron and lead ores. This is done through two distinct combustion processes, the first of which converts the fuel and oxygen into carbon dioxide and the second process which produces carbon monoxide, that can produce iron or steel of different grades.
Date:
June 14, 1921
Creator:
Anderson, Robert J.
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
Collar Fastener or Clasp
Patent for a collar fastener "which will hold the flaps of a collar properly spaced from each other and insure a secure gripping of the flaps to avoid untidy appearance of the collar" (lines 14-17). Includes illustrations.
Date:
June 21, 1921
Creator:
Orson, Kelly N.
System:
The Portal to Texas History
Collar Fastener or Clasp
Patent for a fastener to hold the flaps of a collar securely.
Date:
June 21, 1921
Creator:
Kelly, Orson N.
System:
The Portal to Texas History
Crude-Oil Burner
Patent for an efficient burner of crude or fuel oil that can be used with less dangerous fuels while maintaining the same high level of heat and vaporization necessary for use in domestic environments.
Date:
June 14, 1921
Creator:
Holmes, Watson W.
System:
The Portal to Texas History
Polish-Box Opener.
Patent for a tool designed to open boxes of shoe polish paste.
Date:
June 14, 1921
Creator:
Ramon, Zaragoza Gonsalez
System:
The Portal to Texas History
Cotton-Pest-Destroying Machine
Patent for a machine that destroys boll weevils and other agricultural pests. It distributes moisture and poisonous powder that adheres to plants.
Date:
June 21, 1921
Creator:
Saladiner, Joseph M.
System:
The Portal to Texas History
Broom.
Patent for a broom that has replaceable straw sections.
Date:
June 7, 1921
Creator:
Blasingame, Frank P.
System:
The Portal to Texas History
Flushing tank for siphon closets.
Patent for flushing tanks to connect to siphon closets that is improvement vacuum
Date:
January 22, 1919
Creator:
Sweeny, John S.
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
Bridge Construction.
Patent for '' bridge improvements, especially for placement over gutters, ditches, and alike ''
Date:
May 14, 1920
Creator:
McKenzie, Philip A.
System:
The Portal to Texas History
Locking Device for Motor-Vehicles.
Patent for a simple, inexpensive locking mechanism that would prevent an automobile from being used in an unauthorized way, while still allowing the vehicle to be manually moved or towed if needed, including illustrations.
Date:
June 21, 1921
Creator:
Harris, Robert E.
System:
The Portal to Texas History
Boring and Threading Tool.
Patent for an inexpensive, efficient boring and threading tool that "will enable a smooth and even surface to be produced with a minimum of skill on the part of the operator" (lines 18-21).
Date:
June 21, 1921
Creator:
Wells, Daniel Doolittle
System:
The Portal to Texas History
Combination-Tool.
Patent for a novel combination tool used to construct and maintain wire fencing, including design modifications that encompass the ability to stretch and tie wires without the need for an additional tool, including illustrations.
Date:
June 21, 1921
Creator:
Matsler, Columbus U.
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
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
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
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
Foldable Hacksaw.
Patent for a foldable hacksaw, including illustrations. The foldable hacksaw is "of rigid construction, at the same time being foldable...so that it may be readily carried in the pocket" (lines 13-16).
Date:
June 7, 1921
Creator:
Barner, Lawrence Dunston
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
Rolling Windshield.
Patent for an automobile attachment which protects the said automobile from adverse weather conditions. The apparatus is unique in its simple construction, practicality, and ability to "be rolled into a small compass" when not in use (lines 20-21).
Date:
June 7, 1921
Creator:
Gerhard, William H.
System:
The Portal to Texas History
Valve for Flushing-Tanks.
Patent for a flushing tank valve that reduces the time it takes to fill the tank with a higher accuracy for shut off levels.
Date:
June 21, 1921
Creator:
Sweeny, John S.
System:
The Portal to Texas History
Pipe-Engaging Slip for Rotaries
Patent for improving pipe engaging rotaries, with illustrations.
Date:
June 7, 1921
Creator:
Livergood, Gerald R.
System:
The Portal to Texas History
Road Grader and Drag
Patent for improving road maintenance and construction.
Date:
June 14, 1921
Creator:
Herring, Jesie M.
System:
The Portal to Texas History