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Automatic Railroad or Farm Gate.
Patent for an improved automatic railroad or farm gate that uses the "weight of the car or wagon upon an operating-board and automatically close[s] after the train has passed, and which can also be opened by hand when it is desired to let a single person pass through, either upon foot or horseback" (lines 20-25).
Date:
October 4, 1892
Creator:
Benson, Joseph Robinson
System:
The Portal to Texas History
Float Valve
Patent for improvements on float valves that will "resupply the tank with water when it is withdrawn to a certain lower level and also operate to cut off the inflow when the water will have reached a predetermined height in the trough" (lines 14-18).
Date:
October 21, 1902
Creator:
Mayfield, Jess Lewis
System:
The Portal to Texas History