UNT Libraries Government Documents Department - 37 Matching Results

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Cattle-Guard.

Description: Patent for a cattle-guard mounted on cross-ties and braces with exposed wires to permit identification of damaged wires and to be readily repaired without disturbing the remaining wires, which lists the parts for construction and illustration.
Date: May 13, 1902
Creator: Meador, Edgar T.
Item Type: Refine your search to only Patent

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.
Item Type: Refine your search to only Patent

Cattle-Holder.

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.
Item Type: Refine your search to only Patent

Car-Replacer.

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.
Item Type: Refine your search to only Patent

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
Item Type: Refine your search to only Patent

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 gra… more
Date: January 6, 1891
Creator: Parks, James Harvey
Item Type: Refine your search to only Patent

Churn.

Description: Patent for a novel churn "whereby the dasher or agitator carried by staff or stem within the churn body will be simultaneously rotated and reciprocated...and the reciprocation will effectively agitate the contents of the churn for churning the same" (lines 14-21), with illustrations.
Date: February 16, 1915
Creator: Logan, William L.
Item Type: Refine your search to only Patent

Change-Speed Gearing

Description: Patent for "power transmission for automobiles... provides a driving shaft and a driven shaft arranged in alignment, and a countershaft which parallels the driving and driven shafts and carries a set of gears that continuously mesh."
Date: October 13, 1914
Creator: Relle, William A. So
Item Type: Refine your search to only Patent

Map Hanger

Description: Patent for improvements in map hangers. The purpose is to provide a map exhibiting hanger to use in support for a plurality of maps, particularly maps that have information on the back.
Date: January 31, 1922
Creator: Chunn, Richard M.
Item Type: Refine your search to only Patent

Water-Valve.

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.
Item Type: Refine your search to only Patent

Wagon-Step.

Description: Patent for removable steps that can be mounted over the front wheel of a farm wagon to make it safer and easier to access the spring seat.
Date: May 25, 1915
Creator: Smith, Amon Cornelius
Item Type: Refine your search to only Patent

Nut-Lock.

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.
Item Type: Refine your search to only Patent

Pump

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
Item Type: Refine your search to only Patent

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
Item Type: Refine your search to only Patent
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