Resource Type

Improvements in Target-Controlled Roundabouts (open access)

Improvements in Target-Controlled Roundabouts

Patent for a target-controlled roundabout comprised of a "revoluble member arranged to be operated by a plunger" (lines 11-12).
Date: March 12, 1912
Creator: Lero, Joe
System: The Portal to Texas History
Improvements in Automatic Advertising Devices (open access)

Improvements in Automatic Advertising Devices

Patent for an automatic advertising device that can show various signs or display cards and provides "an endless belt of transparent material which is differently colored" (lines 12-15) so that the sign may be "artistically changed" (lines 17-18). Includes instructions and illustrations.
Date: March 5, 1912
Creator: Murphey, William A.
System: The Portal to Texas History
Process of Electrostatic Separation. (open access)

Process of Electrostatic Separation.

Patent for new improvements to Processes of Electrostatic Separation, "particularly to a process where the comminuted material subjected to the influence of an electrostatic field" (lines 12-14) including instructions and illustrations.
Date: March 12, 1912
Creator: Sutton, Henry M.; Steele, Walter L. & Steele, Edwin G.
System: The Portal to Texas History
Pillow (open access)

Pillow

Patent for a pillow. Illustrations included.
Date: March 19, 1912
Creator: Platt, Samuel L.
System: The Portal to Texas History
Furniture Appliance. (open access)

Furniture Appliance.

Patent for a piece of furniture that contains a retractable length of carpet material, intended for use in shoe stores to allow trial of the products without causing damage to the soles. Includes instructions and illustrations.
Date: March 5, 1912
Creator: Tudor, John H.
System: The Portal to Texas History