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Device for Taking Samples from Wells.
Patent for the development of a drill bit "specially designed for the purpose of obtaining samples of the formation through which the drill bit is passing" (lines 14-16).
Date:
April 6, 1920
Creator:
Dodds, Redus D.
System:
The Portal to Texas History
Means for Detachably Securing Chairs to Floors.
Patent for a new device that secures chairs to the floor and is easily detachable so the chairs can be moved when necessary.
Date:
April 6, 1920
Creator:
Lambert, Joseph A.
System:
The Portal to Texas History
Nut Locking Device.
Patent for a new and improved nut-locking device to securely lock fish plates to rail ends.
Date:
April 6, 1920
Creator:
Hales, Wiley J.
System:
The Portal to Texas History
Polishing-Machine
Patent for improvements in polishing machines for "polishing marble and other similar stones... and giving a smooth surface to any material of like character." Invention provides a "movable abrading member...and comprehends and mechanism whereby said member may be automatically moved back and forth over the surface to be polished."
Date:
April 6, 1915
Creator:
Giesberg, John G.
System:
The Portal to Texas History
Washing Machine
Patent for a washing machine. Illustration included.
Date:
April 6, 1909
Creator:
Hamilton, Walter Scot & Williams, James Rozier
System:
The Portal to Texas History
Spark-Arrester.
Patent for concepts and designs used to improve performance of Spark-Arresters used in the smoke stacks of locomotives with illustrations and instructions.
Date:
April 6, 1880
Creator:
Wiggin, John E.
System:
The Portal to Texas History