Collection
Serial/Series Title
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4 Matching Results
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4
Corn-Topper.
Patent for corn-toppers for cutting off the heads of Kafir corn, milo maze, and other similar grain plants.
Date:
August 28, 1917
Creator:
Pletcher, Thomas S.
Object Type:
Patent
System:
The Portal to Texas History
Evaluating the Ground-Water Resources of the High Plains of Texas: Volume 2
Second volume of a report documenting a study to map the High Plains aquifer and obtain data about various measurements and aspects of the aquifer. This volume provides "supporting basic data including records of wells and county maps depicting well locations, elevation of base of aquifer, elevation of water levels in 1980, and saturated thicknesses in 1980" for the northern third of the study area.
Date:
August 1984
Creator:
Knowles, Tommy; Nordstrom, Phillip & Klemt, William B.
Object Type:
Report
System:
The Portal to Texas History
Pusher Attachment for Tractors.
Patent for an improved tractor attachment that is efficient to operate. The attachment can be fixated to connect both traditional tractors and grain headers.
Date:
August 24, 1920
Creator:
Records, Paul A.
Object Type:
Patent
System:
The Portal to Texas History
Power Transmitting Attachment for Windmills.
Patent for a power-transmitting attachment for windmills "whereby the power of the wind-mill used for operating a pump may also be used for operating other machinery" (lines 12-14), including illustrations.
Date:
August 17, 1918
Creator:
Records, Paul A.
Object Type:
Patent
System:
The Portal to Texas History