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Apparatus for Cleaning Deep Wells.
Patent for a device that assists in cleaning deep wells that have caked material in the pumping apparatus by using hot steam.
Date:
July 3, 1917
Creator:
Deats, George W.
System:
The Portal to Texas History
Resilient Wheel.
Patent for a wheel that contains heavy wire spokes, consisting of two sections that are arranged to have their adjacent ends spaced and connected by coil springs to insure resiliency.
Date:
July 3, 1917
Creator:
Fuller, Robert Nelson
System:
The Portal to Texas History
Freight Gang-Plank.
Patent for freight gang-planks embodying hinged sections which may be adjusted at any angle with relation to each other so that the upper section may be disposed on a horizontal plane for the purpose of allowing a loaded truck to come to rest and remain immovable until manual or mechanical power is applied to move it.
Date:
July 3, 1917
Creator:
Simpson, Louis
System:
The Portal to Texas History