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9 Matching Results
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9
Cash-Fare-Slip Holder
Patent for a cash fare slip holder for use on train or trolley lines.
Date:
June 7, 1910
Creator:
Thomsen, Herman E.
System:
The Portal to Texas History
Pipe-Engaging Slip for Rotaries
Patent for improving pipe engaging rotaries, with illustrations.
Date:
June 7, 1921
Creator:
Livergood, Gerald R.
System:
The Portal to Texas History
Valve for Pumps.
Patent of a valve used on deep well pumps; that my contain sand, shale or sediment
Date:
June 10, 1920
Creator:
Shevlin, Miles
System:
The Portal to Texas History
Well-Screen Cleaner.
Patent for cleaning well screens and preventing oil well pipes from clogging to improve production.
Date:
June 7, 1921
Creator:
Bashara, Samuel F.
System:
The Portal to Texas History
Metal-Frame Screen
Patent for a window screen frame made of metal.
Date:
June 7, 1910
Creator:
Williams, John B.
System:
The Portal to Texas History
Railway Signal.
Patent for a new and improved railroad signal. This design consists in "[a] continuous electric conductor extending beside a railroad, a contact-maker borne by a train, an electric galvanic battery, a stationary transmitter, and a train provided with transmitting and receiving instruments on two or more members of the train and connected with the electric circuit in multiple arc . . . whereby a message can be sent to each member simultaneously" (lines 8-17).
Date:
June 7, 1887
Creator:
Armstrong, James Henry
System:
The Portal to Texas History
Treatment of Crude Petroleum for Purification.
Patent for the purification of crude petroleum by separating impurities such as sand and clay using a heat treatment.
Date:
June 7, 1921
Creator:
Bostick, Joseph Wallace & Homer, Charles H.
System:
The Portal to Texas History
Pump.
Patent for a pump plunger for oil or water that is durable and will not require replacement.
Date:
June 7, 1921
Creator:
Humason, Granville A.
System:
The Portal to Texas History
Notching Attachment for Wire-Winding Machines
Patent for a notching attachment for wire winding machines used for well screens. Illustrations included.
Date:
June 7, 1910
Creator:
Stancliff, George W.
System:
The Portal to Texas History