UNT Libraries Government Documents Department - 135 Matching Results

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Automatic Separating Device.

Description: Patent for an automatic separating device. This device operates with a link that connects the float level at the top of the tank with a valve handle at the bottom of the tank to control discharge from the tank.
Date: January 22, 1918
Creator: Allen, Charles
Item Type: Refine your search to only Patent

Low-Water Alarm For Boilers

Description: Patent for "improvements in low water alarms for steam boilers and more particularly to those which are operated by the heat from the steam in the boiler, after the water therein has fallen below a predetermined danger point" (lines 15-20).
Date: January 5, 1915
Creator: Anderson, Williamson D. & Shearer, Edward J.
Item Type: Refine your search to only Patent

Spark-Arrester.

Description: Patent for a spark aresster that is designed to prevent the discharge of sparks from a flue, particularly flues for small stoves used in army tents.
Date: January 27, 1920
Creator: Ashby, Bert A.
Item Type: Refine your search to only Patent

Scoop

Description: Patent for a scoop. This invention is designed to act as a scoop for the purpose of weighing food stuff on a scale. Illustration included.
Date: January 8, 1907
Creator: Howe, Frank C.
Item Type: Refine your search to only Patent

Dynamometer for Locomotives.

Description: Patent for a new and improved dynamometer for locomotives. This design is "to provide a novel construction in dynamometers for indicating the traction power of locomotives" (lines 9-11). It consists in "a draw-head, a chamber containing a liquid located therein, a piston operating in said chamber, means for connecting said piston with the opposite draw-head, suitable tubing connecting with the said chamber, and a pressure-gage mounted upon or attached to the said tubing and actuated by the said… more
Date: January 13, 1891
Creator: Innes, Robert H.
Item Type: Refine your search to only Patent

Dynamo-Electric Machine

Description: Patent for a new and useful improvement in a dynamo-electric machine to provide a rotor in which certain coils of the winding are automatically cut out and utilized as open coils to prevent the turns in those coils from having a demagnetizing action. Another objective is to provide a rotor whose core consists of non-magnetic material to refuce the inductance and self-induction of the winding and the sparking at the commutator due to the shifting of the magnetic field and the neutral or point of… more
Date: January 10, 1922
Creator: Kuhn, Preston Holmes
Item Type: Refine your search to only Patent

Excavator and Conveyer.

Description: Patent for an excavator machine designed "to continuously excavate the ground at different elevations, as in ditching or cutting away embankments" (lines 15-18) including illustrations.
Date: January 6, 1914
Creator: Lee, James Milton
Item Type: Refine your search to only Patent

Fishing Tackle.

Description: Patent for a new and improved fishing tackle. This design is "to provide a snaring device which will, so far as possible, insure a capture; to so arrange the hooks as to prevent a loss of bait, and to provide a device capable of ensnaring as many fish as may at the time of lifting the snare by nibbling at the bait. . . . the invention consists in a spacing-ring, preferably formed of lead or other heavy metal and having a central hub and having a series of hooks radiating from the tub and secure… more
Date: January 7, 1890
Creator: Mayer, Charles
Item Type: Refine your search to only Patent
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