UNT Libraries Government Documents Department - 1,026 Matching Results

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Relay.

Description: Patent for an electric relay "which is normally actuated by weak currents, and adapted when abnormally energized by heavier currents to shift the local current from one connection to another in order to prevent the relay armature from sticking" (lines 10-15).
Date: May 18, 1909
Creator: Rice, Hugh C.
Item Type: Refine your search to only Patent

Releasing Device For Brakes Of Drive-Wheels.

Description: Patent for "releasing devices for the brakes of drive-wheels of locomotives, whereby the brakes are instantaneously released at the time the train is in motion and before the braked drive-wheels are on the point of sliding on the rails, also before the triple valve acts to release the brakes." (Lines 15-21) Includes instructions and illustrations.
Date: July 13, 1897
Creator: Pelham, Walter O.
Item Type: Refine your search to only Patent

Rotary Engine

Description: Patent for a rotary engine. This invention is a rotary steam engine. It consists of a cylinder, rotatable drum, and pistons. Illustration included.
Date: March 24, 1908
Creator: Hopper, James F.
Item Type: Refine your search to only Patent

Saddle.

Description: Patent for a new and improved saddle. This design "consists in a rubber or other elastic seat having a thick central portion with tapering thin edges and a leather covering for the same" (lines 9-11).
Date: November 4, 1884
Creator: Adams, James E. & Shero, Philip
Item Type: Refine your search to only Patent

Saddle-Stirrup.

Description: Patent for saddle stirrup, with illustrations. The invention "relates to those stirrups which are provided with foot-pieces adapted to oscillate thereupon... and at the same time provide means whereby the foot-pieces can have limited universal movement" (lines 10-15).
Date: November 21, 1882
Creator: Shellenberger, Samuel L.
Item Type: Refine your search to only Patent

Sadler Quadrangle

Description: 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 1:24,000
Date: 1982
Creator: Geological Survey (U.S.)
Item Type: Refine your search to only Map
Location: 33.69 -96.81

Sadler Quadrangle

Description: Satellite image 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 1:24,000
Date: 2010
Creator: Geological Survey (U.S.)
Item Type: Refine your search to only Map
Location: 33.69 -96.81

Sadler Quadrangle

Description: 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 1:24000
Date: 2013
Creator: Geological Survey (U.S.)
Item Type: Refine your search to only Map
Location: 33.69 -96.81

Sadler Quadrangle

Description: 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 1:24000
Date: 1983
Creator: Geological Survey (U.S.)
Item Type: Refine your search to only Map
Location: 33.69 -96.81

Safety-Casing Clamp

Description: Patent for a tool that supports the drilling and operating of oil and gas wells. Specifically, the patented tool allows a strong method of sealing the smaller casing inside the larger casing, as the larger casing is pulled out of the well. Includes illustrations.
Date: March 15, 1921
Creator: Angus, William M.
Item Type: Refine your search to only Patent

Sash-Fastener.

Description: Patent for a "device which will lock the sashes of a window when they are closed and which will secure them in any desired adjustment," (lines 11-14) including instructions and illustrations.
Date: March 15, 1892
Creator: Taber, William M.
Item Type: Refine your search to only Patent

Sash Fastener.

Description: Patent for a new and improved sash fastener. This design "has for its object to provide a simple and efficient and at the same time cheap and durable sash-locking device which will serve to automatically lock the sash at any desired height. The device is ornamental in appearance, of few parts, and will not be likely to get out of order" (lines 16-22).
Date: April 26, 1892
Creator: Lynch, William Henry
Item Type: Refine your search to only Patent

Sawing Machine

Description: Patent for a wood sawing machine which allows for a portable wood sawing apparatus. The device is capable of adjusting the saw to create a feed, and allows for cutting diagonally, horizontally, or vertically.
Date: December 14, 1920
Creator: Arnold, James A.
Item Type: Refine your search to only Patent
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