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4 Matching Results
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Canal or Ditch Digging Machine.
Patent for a canal or ditch digging machine that has a carriage and a mechanism that draws the carriage across the ground, and a boring-tool beneath the carriage. The boring-tool can bore at an adjustable angle.
Date:
August 20, 1895
Creator:
Hoefs, Otto
Object Type:
Patent
System:
The Portal to Texas History
Oar Lock Attachment.
Patent for an oar-lock attachment that allows the oar to be removed but not easily disconnected, using a hook on the oar with a spring plate and an eye on the boat gunwale, with illustrations.
Date:
December 20, 1892
Creator:
Livingston, Joseph R.
Object Type:
Patent
System:
The Portal to Texas History
Texas Attorney General Opinion: O-3084
Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Gerald Mann, regarding a legal question submitted for clarification: What fund should the engineer employed by Brazoria County to construct and be maintain the public roads of said county be paid from?
Date:
February 20, 1941
Creator:
Texas. Attorney-General's Office.
Object Type:
Text
System:
The Portal to Texas History
Method of Sampling.
Patent for improving methods of boring wells by "raising the cuttings from an earth boring drill to the surface" (lines 70-71), including illustrations.
Date:
July 20, 1920
Creator:
Carmichael, Robert E.
Object Type:
Patent
System:
The Portal to Texas History