Gate-Operating Mechanism (open access)

Gate-Operating Mechanism

Patent for an improved gate operating mechanism to allow vehicles to approach the gate and the gate move to the open position and to move to the closed position has passed through the gate opening. Includes illustrations.
Date: August 21, 1917
Creator: McDaniel, James M. & McDaniel, Claud M.
System: The Portal to Texas History
Internal Combustion Engine (open access)

Internal Combustion Engine

Patent for a improved Internal Combustion Engine. The improvement is the construction of the ignition of the internal combustion engine where the fuel in the compression chamber is ignited explosion of a different fuel of a more highly explosive nature.
Date: August 9, 1921
Creator: Simpson, Joseph Ryan.
System: The Portal to Texas History