Resource Type
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7 Matching Results
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Improvement in Machines for Destroying Insects.
Patent for "new and useful improvements in insect destroyers and more particularly to that class especially adapted to the extermination of boll-weevils" (lines 9-12) including instructions and illustrations.
Date:
December 29, 1914
Creator:
Nail, Louis L.
System:
The Portal to Texas History
Printing by Lithography
Patent for improvements in lithography printing that further help reproduce worn or difficult engravings, as well as transfer and make impressions into engravings with slight loss of effect, while also providing a means in which the engraving or stone can be prepared expeditiously and inexpensively. (lines 10-25)
Date:
March 2, 1915
Creator:
Ray, James
System:
The Portal to Texas History
Railroad-Switch
Patent for a railroad switch that is easier to use and more effective than the "common stub switch" (lines 10-11), thereby reducing damage.
Date:
December 16, 1919
Creator:
Cuellar, Samuel D.
System:
The Portal to Texas History
Silo Construction
Patent for silo, with walls constructed out of plastic,
Date:
January 16, 1917
Creator:
Pierson, Ludvig B.
System:
The Portal to Texas History
Pipe-Cutter
Patent for improvements to pipe-cutters that can cut pipes of different sizes.
Date:
February 19, 1918
Creator:
Hime, Clint T.
System:
The Portal to Texas History
Railway Construction.
Patent for "new and useful improvements in Railway Constructions" (lines 6-7) including instructions and illustrations.
Date:
December 5, 1916
Creator:
Oliver, Lavan; Oliver, Tilden B. & West, Gorge W.
System:
The Portal to Texas History
Mold for Tubular Articles.
Patent for an improved mold for making concrete tubular casings for dug wells with opposite grooves so the casings can be connected together when used, with illustrations.
Date:
May 8, 1917
Creator:
Schuettig, Emil A.
System:
The Portal to Texas History