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Heydrick's Ownership Map of Donley Co., Texas.

Description: Survey map of Donley County, Texas, showing property lines, ownership, and plat numbers. The map also includes towns, boundaries, bodies of water, railroad lines, and roads. A legend indicating drilling wells, gas wells, abandoned wells, and dry holes is included in the upper-right corner of the second sheet. Handwritten notes have been made on the map in red ink to make corrections and/or add information. Scale [ca. 1:48,000] (4000 feet to the inch).
Date: 1928
Partner: Hardin-Simmons University Library

Donley County

Description: Blue line print of survey map of Donley County, Texas, showing rivers, creeks, original land grants or surveys, blocks of land, cities, towns, and railroads. Handwritten notes have been on the published map in pencil to denote the addition of Rath Trail. Scale [ca. 1:177,778] (4000 varas to 3/4 of an inch).
Date: 1903
Creator: Walne, W. H.
Partner: Hardin-Simmons University Library

Pump-Rod Coupling.

Description: Patent for "a pump rod coupling and more particularly to a coupling adapted to connect together pump rods made of wood or similar substance" (lines 8-11).
Date: July 22, 1913
Creator: Kemp, Thomas Stephen
Partner: UNT Libraries Government Documents Department


Description: Patent for improvement in nuts-locks whereby a nut is coupled to a bolt by a washer with a pivoted tooth.
Date: September 18, 1917
Creator: Harris, Joseph A. & Howard, Arthur W.
Partner: UNT Libraries Government Documents Department


Description: Patent for "car-replacers or wrecking-frogs employed for guiding the wheels of a derailed car or locomotive to the rails." (Lines 7-10) Includes instructions and illustrations.
Date: February 11, 1896
Creator: Hawkins, Robert B.
Partner: UNT Libraries Government Documents Department


Description: Patent for improvements in tire-heater by using a tire box with a number of horizontal bars, tires are placed “into the front of the box and moved into correct position upon the horizontal bars without necessarily lifting the tires.” (Lines 29-32) Diverging arms are secured to the axis inside the tire box. Lamps are secured at the outer ends of the diverging arms. These diverging arms operate by a regulating crank which makes the lamps revolved beneath the tires, therefore heating the tires. Illustration is included.
Date: September 8, 1891
Creator: Parks, James H.
Partner: UNT Libraries Government Documents Department

Clinometer or Slope Measurer.

Description: Patent for a new and improved clinometer. This design "is to provide a simple and inexpensive device for taking measurements in prismoidal formula and to avoid the calculation of the triangle and enable the slope to be readily written from the instrument" (lines 16-21). It "compris[es] the square composed of the stationary short bar or arm and the stationary long bar or arm rigidly secured to one side of the short arm or bar and provided on its face with a spirit-level and having a scale of graduations of which the length of the short bar or arm is the unit, the curved brace connecting the said parts" (lines 60-68).
Date: January 6, 1891
Creator: Parks, James Harvey
Partner: UNT Libraries Government Documents Department

Balanced-Valve Testing and Locking Device.

Description: Patent for "a simple testing and locking device for balanced valves of locomotives, the testing device being so placed with relation to the valve that it may be accurately determined whether the valve on one or the other side of the engine is leaking without removing the outer plates form the valve-casing or removing the covers from the steam-chest." (Lines 8-16) Includes instructions and illustrations.
Date: June 15, 1897
Creator: Sadler, James Alexander
Partner: UNT Libraries Government Documents Department

[Clarendon school classroom]

Description: Photograph of students in a classroom at the school in Clarendon, Texas. Most of the students are seated at desks, with a group of nine boys standing at the rear. An adult male is also standing at the rear of the class. The boy standing fifth from the left is identified as Harold Bugbee.
Date: 191u
Partner: Panhandle-Plains Historical Museum


Description: Patent for a cattle-holder, which provides the "novel means for confining cattle and holding them in an upright position against movement" (Lines 14-16).
Date: May 13, 1902
Creator: Terrell, Joseph E.; Terrell, William. & Montgomery, Franklin M.
Partner: UNT Libraries Government Documents Department


Description: Patent for new improvements to oil-burners in stoves and furnaces providing "a proper inlet of air to fire generated on the hearth" (lines 14-15) including instructions and illustrations.
Date: January 23, 1912
Creator: Braly, Hugh L.
Partner: UNT Libraries Government Documents Department

Valve or Cut-Off for Tanks

Description: Patent for Valve or Cut-off for Tanks. Improved valve or cut-off for tanks especially discharge valves. Few parts, easy to assemble, easy to operate, intended for extended use.
Date: July 2, 1903
Creator: Leithauser, Peter Jerome; Leithauser, Peter J. & Leithauser, P. J.
Partner: UNT Libraries Government Documents Department


Description: Patent for a water valve for water delivery systems that does not have standing water around it that can freeze in cold weather.
Date: April 12, 1910
Creator: Anthony, Joseph B. & Morris, Robert M.
Partner: UNT Libraries Government Documents Department


Description: Patent for a pump for the purpose to pump out rising water in deep wells. Illustrations included.
Date: December 6, 1904
Creator: Leithauser, Peter Jerome
Partner: UNT Libraries Government Documents Department


Description: Patent for a hog yoke, which prevents hogs from crawling under fences and rooting up their pen.
Date: November 8, 1910
Creator: McCarroll, William R.
Partner: UNT Libraries Government Documents Department