Resource Type
Counties
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Spark-Plug
Patent for an improved spark plug assembly used in explosive engines allowing for easier cleaning of the electrodes while the motor is running, among other enhancements over contemporary spark plug design.
Date:
April 27, 1915
Creator:
Inman, John P. & Estes, Robert E.
System:
The Portal to Texas History
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
Double-Acting Cylinder-Pump.
Patent for improvements in double-acting cylinder-pumps by making “the cages and check-valves detachable from the piston-cylinder without removing or disturbing either the casing or piston-cylinder and can be replaced in the same manner.” (Lines 18-22) Illustration in included.
Date:
April 22, 1902
Creator:
Arnold, Henry B.
System:
The Portal to Texas History