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Casing Spear
Patent for casing spears. This invention is designed for pulling well tubes or casings that have broken off out of the well. Illustration included.
Date:
August 25, 1908
Creator:
Carroll, Monroe W. & Johnston, H. G.
System:
The Portal to Texas History
Coupling Means for Demountable Rum Sections.
Patent for coupling means for demountable-rim sections. Improved device that is simple, durable, efficient, and inexpensive to produce.
Date:
September 25, 1917
Creator:
Cumpston, Frederick B.
System:
The Portal to Texas History
Machine for Holding Wall-Paper.
Patent for a wall-paper hanging machine. It has a frame with a handle, a paste-pot, pasting rollers, a paper-holding roll, a pivoted matching-frame, a cutter, and a way of putting the frame out of use.
Date:
August 25, 1896
Creator:
Gowan, Richard H. & Gowan, Louise E.
System:
The Portal to Texas History
Railroad-Crossing.
Patent for a railroad crossing that has tracks, which make less noise when it is crossed by a train than previous models.
Date:
April 25, 1911
Creator:
Blankinship, William Asbury & Copeland, William
System:
The Portal to Texas History
Electric Clock
Patent for an electric clock. Illustration included.
Date:
December 25, 1906
Creator:
Iversen, Henry
System:
The Portal to Texas History