Resource Type

States

Month

Priming-Cup (open access)

Priming-Cup

Patent for an improved version of the priming cup "shown in Patent No. 1,329,464, granted February 3, 1920" (lines13-14). Includes illustrations.
Date: April 5, 1921
Creator: Martinek, Stanley A.
System: The Portal to Texas History
Tractor (open access)

Tractor

Patent for improvements in tractors for farm and road work. Improvements include enclosing all working parts within a protecting housing, mounting the motor for rotation, balance the weight, provide a wheel carriage to adjust the width and height, and to provide shifting gears.
Date: April 26, 1921
Creator: Ingram, Joseph D.
System: The Portal to Texas History