Closet (open access)

Closet

Patent for a dry closet. Illustrations included.
Date: April 2, 1912
Creator: Crow, Levi H.
System: The Portal to Texas History
Controlling System for Motor-Traction Cars. (open access)

Controlling System for Motor-Traction Cars.

Patent for controlling systems for motor traction cars. These controlling systems provide automatic control outside the volition of the motorman.
Date: April 2, 1912
Creator: Mayo, William C.; Briggs, George E. & Houlehan, John
System: The Portal to Texas History
Machine for Picking and Cleaning Cotton. (open access)

Machine for Picking and Cleaning Cotton.

Patent for a new machine for picking and cleaning cotton with all its specifications.
Date: April 2, 1912
Creator: Johnson, Billie
System: The Portal to Texas History
Music-Leaf Turner (open access)

Music-Leaf Turner

Patent for a music leaf turner to turn the pages of sheet music for pianists. Illustrations included.
Date: April 2, 1912
Creator: Meier, Ernst
System: The Portal to Texas History
Spark-Arrester. (open access)

Spark-Arrester.

Patent related to a spark arrester with a superstructural frame that can be used for either traction engines or railway locomotives.
Date: April 2, 1912
Creator: Taack, Ed Gustav
System: The Portal to Texas History
Process of Making Salve. (open access)

Process of Making Salve.

Patent for a process for making salve from sheep sorrel leaves and stems in a copper pot that produces a medical paste.
Date: April 2, 1912
Creator: Herald, John W.
System: The Portal to Texas History
Switch-Throwing Mechanism. (open access)

Switch-Throwing Mechanism.

Patent related to switch throwing mechanisms, specifically for vehicles. This switch throwing mechanism allows the operator of the vehicle to properly conduct the switch without stopping the vehicle.
Date: April 2, 1912
Creator: Reiger, Paul J.
System: The Portal to Texas History
Flap-Valve (open access)

Flap-Valve

Patent for a flap valve for use in blowing engines that increases the life of the valve plates.
Date: April 2, 1912
Creator: Scott, Clarence N.
System: The Portal to Texas History
Molding-Machine (open access)

Molding-Machine

Patent for a molding machine for forming casting molds. Illustrations included.
Date: April 2, 1912
Creator: MacKay, Hugh, of Dallas, Texas
System: The Portal to Texas History
Drafting-Pen. (open access)

Drafting-Pen.

Patent for a new drafting-pen which includes a tie member that unites and resists separation of the blades of a pen, yet the tie member is movable and allows the blades to separate.
Date: April 2, 1912
Creator: Smith, Edwin R.
System: The Portal to Texas History
Cotton or Drag Sack Protector. (open access)

Cotton or Drag Sack Protector.

Patent for cotton or drag protectors used to protect the part of the sack that drags along the ground. This prevents the sack from wearing out.
Date: April 2, 1912
Creator: Elkins, Thomas M.
System: The Portal to Texas History
Cultivator-Hopple. (open access)

Cultivator-Hopple.

Patent for a cultivator hopple for adjusting the beams of a cultivator.
Date: April 2, 1912
Creator: Smith, Fletcher
System: The Portal to Texas History