Collection
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5 Matching Results
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5
Montague Sheet
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:125000
Date:
1920
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Car Coupler.
Patent for car coupler heads. This object has coupler heads that, when set in position, automatically lock.
Date:
September 11, 1923
Creator:
Tucker, Roger V.
Object Type:
Patent
System:
The Portal to Texas History
Trombone.
Patent, including illustration, for "a musical instrument slide and is more particularly designated as a bearing or stocking for a trombone or other similar instruments in which it is desirable to provide a smooth bearing for the slidable part of the instrument" (page 1, lines 9-13).
Date:
February 17, 1920
Creator:
Ackley, William D.
Object Type:
Patent
System:
The Portal to Texas History
Fire-Engine.
Patent for "an apparatus for extinguishing the fire in oil wells and the principal object of the invention is the provide means for creating a suction at the mouth of the well for extinguishing the fire."
Date:
August 31, 1920
Creator:
Smith, Paul E.
Object Type:
Patent
System:
The Portal to Texas History
Cotton-Chopper
Patent for a cotton-chopper with two disk-cutters mounted to a supporting frame, which can be positioned parallel or at an angle to each other. Each disk-cutter is attached by a projecting arm, which provides foot support and allows each disk to be operated independently. Patent includes illustrations.
Date:
November 23, 1920
Creator:
Jones, John W.
Object Type:
Patent
System:
The Portal to Texas History