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Rail-Joint
Patent for connecting fish plates at the meeting ends of rails where the rails are securely connected without the necessity of employing bolts. Another object of this improvement is to provide a combined fish plate and rail chair which can be applied to the rails.
Date:
January 13, 1920
Creator:
Jezik, Joseph J.
System:
The Portal to Texas History
Casing Point or Strainer.
Patent for casing point or strainer "particularly adapted for use in oil and Artesian wells... which will permit free circulation of the liquid around the lower portion of the casing and free and easy entrance of the same into the casing, and yet will prevent entrance of sand and gravel into the casing" (Lines 12-22).
Date:
May 13, 1902
Creator:
Carlson, Andrew Edward
System:
The Portal to Texas History
Sand-Screen for Wells.
Patent for a sand-screen for wells "to provide a simple and efficient device adapted for use on ordinary well-tubing, the same being capable of construction and repair at small cost, being readily attachable to and removable from the tubing, and having means for effectually excluding sand from the inlet end of the tubing, while permitting the free inflow of water therethrough" (lines 9-17).
Date:
April 26, 1902
Creator:
Jackson, Stokeley & Thompson, Neals
System:
The Portal to Texas History