Evaporative Cooler (open access)

Evaporative Cooler

Patent for an evaporative cooler. Illustrations included.
Date: June 25, 1912
Creator: Walkup, John A. & Walkup, Charles W.
System: The Portal to Texas History
Revolving Case and Account Register (open access)

Revolving Case and Account Register

Patent for revolving case and cash register. This device is designed as an account system and provides customers with and account book for keeping records. Illustrations included.
Date: June 25, 1912
Creator: Trenton, Albert E.
System: The Portal to Texas History
Door Operating Means (open access)

Door Operating Means

Patent for a mechanism to operate jail doors. The mechanism is "operated with a single movement of the hand to open and close a plurality of doors simultaneously" (14-19). Illustrations included.
Date: June 25, 1912
Creator: Youngblood, David Franklin
System: The Portal to Texas History
Shoe Blacking and Polishing Machine (open access)

Shoe Blacking and Polishing Machine

Patent for an invention "to improve the construction of shoe blacking and polishing machines" (lines 10-12) Illustrations included.
Date: June 25, 1912
Creator: Bean, Jesse Alfonso
System: The Portal to Texas History
Rapid-Transit Car (open access)

Rapid-Transit Car

Patent for a rapid transit car that runs on cables in the air.
Date: June 25, 1912
Creator: Barnett, John B.
System: The Portal to Texas History
Oil Burner (open access)

Oil Burner

Patent for simple and efficient mechanism capable of producing heat which vaporize oil.
Date: March 25, 1912
Creator: Price, Joseph P.
System: The Portal to Texas History
Illuminated Vest or Coat Buttons (open access)

Illuminated Vest or Coat Buttons

Patent for illuminated vest or coat buttons. This device consists of a portable electric lights including an electric lamp, conductor, battery, and a concealable button for toggling on and off. Illustrations included.
Date: June 25, 1912
Creator: Lagarde, Everette S. & Angenend, Peter A.
System: The Portal to Texas History