Collection
Serial/Series Title
Digital US Topo Maps: 7.5 Minute Series (Topographic)
56
2010 Census County Block Map
37
2010 Census P.L. 94-171 County Block Map
37
7.5 Minute Series (Topographic)
34
2000 Census County Subdivision Block Map
30
Digital Raster Graphic Topographic Maps: 7.5 Minute Series (Topographic)
24
2000 Census County Block Map
22
1990 Census County Block Map
21
2007 Economic Census Map
8
Western United States 1:250,000
8
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303 Matching Results
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289 - 303 of
303
Analytical Study of the Ogallala Aquifer in Sherman County, Texas: Projections of Saturated Thickness, Volume of Water in Storage, Pumpage Rates, Pumping Lifts, and Well Yields
Report on the Ogallala Aquifer in Lamb County, Texas, with a focus on Persuading the water users to implement all conservation measures and provides information to officials to alleviate the water-shortage problem.
Date:
September 1980
Creator:
Bell, Ann E. & Morrison, Shelly
Object Type:
Report
System:
The Portal to Texas History
Water-Elevator.
Patent for a water elevator. The invention produces a means for "high power water elevating" which provides " a steady and voluminous flow of water" (lines 20-22). Illustration included.
Date:
November 25, 1919
Creator:
Barnett, Grady L.
Object Type:
Patent
System:
The Portal to Texas History
Well Pump
Patent for a well pump. "This invention relates to well-pumps of that character wherein a piston is operatively arranged within an outflow-pipe and having an automatically - closed bottom check - valve opened by the suction produced" (line 8-13). Illustration included.
Date:
March 5, 1907
Creator:
Medlock, Augustus L.
Object Type:
Patent
System:
The Portal to Texas History
Windmill Wheel
Patent for improvements made to windmill wheels. Improvements include windmill wheel blades that can easily be taken off or fixed onto the wheel hub, improvements in construction for easy assembly and disassembly, and construction from economic materials.
Date:
March 3, 1914
Creator:
Mason, Charles O.
Object Type:
Patent
System:
The Portal to Texas History
Improvement in Pipe and Rod Clamps.
Patent for "improvements in devices for supporting pipes and rods in position" (lines 10-11) including instructions and illustrations.
Date:
December 29, 1914
Creator:
Adams, Benjamin F.
Object Type:
Patent
System:
The Portal to Texas History
Grain-Separator for Attachment to Threshing-Machines
Patent for a grain separator that can be attached to a straw stacker. Illustrations included.
Date:
May 3, 1910
Creator:
McAdams, William J.
Object Type:
Patent
System:
The Portal to Texas History
Spring-Wheel
Patent for spring wheels for use on motor vehicles, such as automobiles and motorcycles. Producing a wheel that will absorb the shock or jar incident to its passage over rough or uneven roadways.
Date:
March 17, 1914
Creator:
Short, Jefferson D.
Object Type:
Patent
System:
The Portal to Texas History
Grain-Drill Attachment.
Patent for combining a plow and a grain drill into one device, to reduce the number of times the soil needs to be turned per planting.
Date:
August 29, 1915
Creator:
McAdams, William J.
Object Type:
Patent
System:
The Portal to Texas History
Film Feeding Mechanism for Cameras
Patent for a film feeding mechanism for cameras. Illustrations included.
Date:
August 6, 1912
Creator:
Caldwell, Elmer A.
Object Type:
Patent
System:
The Portal to Texas History
Railroad-Rail Joint
Patent for a railroad rail-joint that does not require holes to be drilled in it.
Date:
February 25, 1913
Creator:
McAdams, William J.
Object Type:
Patent
System:
The Portal to Texas History
Rail-Joint
Patent for a joint designed to stop the ends of rails from moving.
Date:
October 6, 1914
Creator:
Fedrick, Samuel B.
Object Type:
Patent
System:
The Portal to Texas History
Pipe-Wrench.
Patent for a new invention of pipe-wrench, how it is made and how it is used.
Date:
May 23, 1916
Creator:
Adams, Benjamin F.
Object Type:
Patent
System:
The Portal to Texas History
Gas Generator and Burner
Patent for a combined gas generator and burner that can be employed with ordinary cooking and heating stoves.
Date:
July 26, 1915
Creator:
Autrey, Samuel E.
Object Type:
Patent
System:
The Portal to Texas History
Drainage-Bottle
Patent for a drainage bottle that can be attached/detached from the person and is used for draining wounds.
Date:
February 19, 1918
Creator:
Wofford, William Fillmore
Object Type:
Patent
System:
The Portal to Texas History
Pipe-Wrench.
Patent for an economical pipe wrench that is easily adjustable using a pivoting, movable jaw to fit pipes of varying sizes.
Date:
May 5, 1914
Creator:
Adams, Benjamin F.
Object Type:
Patent
System:
The Portal to Texas History