75 Matching Results

Results open in a new window/tab.

Process of and Apparatus for Progressive Electrostatic Separation of Comminuted Material (open access)

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
Metallic Mold for Concrete Walls (open access)

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
Pipe-Coating Machine. (open access)

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. (open access)

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
Means For Protecting Vaults. (open access)

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. (open access)

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
Cotton-Cultivator. (open access)

Cotton-Cultivator.

Patent for an improved cultivator used for tillage when the plows are not in the ground. The cultivator can also lighten the heaviness felt by the operator while the plow is being used.
Date: May 17, 1921
Creator: Barnett, James Samuel
System: The Portal to Texas History
Refrigerator-Door. (open access)

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
Blow-Out Boot (open access)

Blow-Out Boot

Patent for a blow-out boot which would prevent the usual particulate from being able to enter the inner tire after a blow-out.
Date: January 4, 1921
Creator: Barnes, John A.
System: The Portal to Texas History
Collar Fastener or Clasp (open access)

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
Clutch and Transmission Device (open access)

Clutch and Transmission Device

Patent for new and useful improvements in the development of clutch and transmission devices.
Date: February 22, 1921
Creator: Hubbard, Adra M.
System: The Portal to Texas History
Antileak Composition. (open access)

Antileak Composition.

Patent for improvements in antileak composition in order to prevent leaks in liquid holding containers like radiators, boilers, etc.
Date: July 5, 1921
Creator: Shrum, Will N.
System: The Portal to Texas History
Collar Fastener or Clasp (open access)

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
Blow-Out Shoe. (open access)

Blow-Out Shoe.

Patent for a new blow-out shoe for pneumatic tires which uses a pliable fastening instead of metallic connections or laces.
Date: January 4, 1921
Creator: Moore, Lee, R.
System: The Portal to Texas History
Holder for Dental X-Ray Films. (open access)

Holder for Dental X-Ray Films.

Patent for dental X-Ray holders that securely hold the film in place and categorize the X-Rays into series that comprise views of the whole mouth.
Date: May 17, 1921
Creator: Martin, James Madison
System: The Portal to Texas History
Ice-Carrier. (open access)

Ice-Carrier.

Patent for an adjustable ice carrier which can be attached to and removed from the running board of an automobile, including illustrations.
Date: April 19, 1921
Creator: Cronin, John J.
System: The Portal to Texas History
Plastic Base for Poles. (open access)

Plastic Base for Poles.

Patent for a plastic base for poles which aims to lengthen the life of the average pole and enable the use of poles of shorter lengths.
Date: May 17, 1921
Creator: Hoyle, Millard F.
System: The Portal to Texas History
Covering for Meats. (open access)

Covering for Meats.

Patent for an aromatic asphaltum and paraffin wrap to preserve, protect from air and moisture, and transport meat that will not become brittle under cold temperatures.
Date: October 18, 1921
Creator: Pletcher, Lyle J.
System: The Portal to Texas History
Lock and Key. (open access)

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
Fountain-Pen Blotting Attachment. (open access)

Fountain-Pen Blotting Attachment.

Patent for an attachment for fountain pens that would hold a roll of blotting paper or other ink absorbing material on a revolving stem to be used to remove extra ink from paper after using the fountain pen. The attachment is contained in a cap that is attached to the end of the fountain pen.
Date: August 9, 1921
Creator: Odom, Blaine W.
System: The Portal to Texas History
Game-Board. (open access)

Game-Board.

Patent for a game board that includes barriers, inclines, and depressions in the board which is meant to simulate a game similar to baseball (as well as other games) using a cue ball. The game board also comes with auxiliary barriers to adjust gameplay.
Date: July 12, 1921
Creator: Sterling, Don L.
System: The Portal to Texas History
Cultivating-Hoe. (open access)

Cultivating-Hoe.

Patent for cultivating hoe in which operating segment is adapted to be multifaceted and prevent becoming dull.
Date: August 9, 1921
Creator: Church, R.D.
System: The Portal to Texas History
Apparatus for Separating Substances of Different Dielectric Capacities. (open access)

Apparatus for Separating Substances of Different Dielectric Capacities.

Patent for an apparatus for separating substances of different dielectric capacities; the objective of this invention is to provide means for the material to be separated into its component particles for the purpose of producing material of dielectric hysteric impedance and collecting the separated particles according to the difference in time that the particles maintain their polarity due to the impedance generated from them.
Date: August 2, 1921
Creator: Sutton, Henry M.
System: The Portal to Texas History
Street-Directory. (open access)

Street-Directory.

Patent for business guide and street directory to help identify locations of business houses, streets, and street numbers more quickly and effectively.
Date: August 2, 1921
Creator: Marshall, F.N.
System: The Portal to Texas History