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Occurrence, Availability and Chemical Quality of Ground Water in the Cretaceous Aquifers of North-Central Texas: Volume 1
Report on the quality and availability of ground water in the cretaceous aquifers of north-central Texas. Includes maps, hydrographs, rainfall data, pumpage, and more.
Date:
April 1982
Creator:
Nordstrom, Phillip L.
Object Type:
Report
System:
The Portal to Texas History
Collapsible Box.
Patent for collapsible box which uses hinges to strengthen the box and to allow the box to be collapsed easily for easy storage.
Date:
April 20, 1915
Creator:
Smith, James A.
Object Type:
Patent
System:
The Portal to Texas History
Railroad Signal
Patent for a railroad signal. This invention is an improvement for signalling by the trains interaction on the rails. Illustration included.
Date:
April 30, 1907
Creator:
Harvey, Albert Wadkins
Object Type:
Patent
System:
The Portal to Texas History
Punch.
Patent for a punch for "removing broken rivets from buggy-bow sockets" (lines 16, 17) that can be operated by one person.
Date:
April 16, 1907
Creator:
Stedham, William H. & Miller, John N.
Object Type:
Patent
System:
The Portal to Texas History
Lamp Bracket
Patent for a lamp bracket. Illustration included.
Date:
April 18, 1905
Creator:
Holder, William J. & Corry, J. F.
Object Type:
Patent
System:
The Portal to Texas History
Plow.
Patent for a new and improved plow. This design consists in "[t]he combination, with a plow-beam, of a plow-standard pivotally secured to the rear end of said beam, a brace pivotally secured to the standard, and a sliding clamp for securing the front end of the brace to the beam" (lines 90-94).
Date:
April 13, 1886
Creator:
Ketchum, Joel Thomas
Object Type:
Patent
System:
The Portal to Texas History