UNT Libraries Government Documents Department - 41 Matching Results

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Etching Apparatus.

Description: Patent for an etching device that is for those interested in producing copper and zinc half-tones. This device can also use wave like motion to retain highlight tones and finish half-tones without requiring re-etching or staging.
Date: January 14, 1919
Creator: Beare, John H.
Item Type: Refine your search to only Patent

Universal Lever

Description: Patent for a new universal lever “for the purpose of the transmission of power from any suitable source to a rod or bar, for reciprocating the rod or bar in a perfectly straight line at all times” (lines 15-18) including instructions and illustrations.
Date: December 14, 1915
Creator: Blackaller, Miguel
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Receptacle For Use In Outhouses And Like Places

Description: Patent for Receptacle For Use In Outhouses And Like Places. "This invention relates to an improvement in receptacles for use in outhouses and other like places, the object being to construct a simple and inexpensive receptacle which will not give out any offensive or unhealthy odors while being removed from the outhouse for the purpose of cleaning or for any other purpose." (lines 13-19)
Date: August 14, 1888
Creator: Carrico, Thomas W.
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Improvement in Piano-Pedal Attachments.

Description: Patent for improved piano-pedal attachments which would help "children who are not able to reach the regular pedals; by hooking the stool to the regular pedal-support and setting the connecting-rods in the little sockets in the piano-pedals." (Lines [9-14]) Illustration is included.
Date: March 14, 1876
Creator: Cheesman, Charles F.
Item Type: Refine your search to only Patent

Locomotive-Headlight.

Description: Patent for a three-way locomotive-headlight with easily removable screens of different colors in order to send signals. The screens are easily fitted to other locomotive headlights. This invention is meant to prevent accidents that happen without proper signaling.
Date: January 14, 1896
Creator: Davis, Moses J.
Item Type: Refine your search to only Patent

Trolley Wire Hanger.

Description: Patent for new and improved trolley wire hangers to "provide a clamp for trolley-wires which may be easily and quickly adjusted by one not particularly skilled in the art" (lines 24-27), including instructions and illustrations. This clamp is also designed to keep broken insulator bolts from damaging the trolley and span wires.
Date: September 14, 1897
Creator: Faulkner, John F. & Campbell, Royer
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Trolley Cut-Out.

Description: Patent for "a new and improved cut-out designed for use on trolley-wires, electric light and power wires, and telegraph wires, the cut-out being arranged to reduce the danger from such wires incident to the breaking of the live wires." (Lines 7-12) Includes instructions and illustrations.
Date: January 14, 1896
Creator: Fletcher, Theodore
Item Type: Refine your search to only Patent

Display or Advertising Device.

Description: Patent for a dimple, durable display or advertising device "which may be easily and conveniently used for displaying or exposing an advertising sign in a manner to attract attention to the same" (lines 14-17), including instructions and illustrations.
Date: May 14, 1918
Creator: Fox, William N.
Item Type: Refine your search to only Patent

Cultivator and Cotton-Chopper

Description: Patent for improvements "to provide flexible revolving knives or hoes, and, second, to afford facilities for supporting the cultivating and chopping device when out of the ground without throwing more weight behind the axle on the main wheels to tip the end of the pole against the horses necks" (lines 13-19).
Date: January 14, 1890
Creator: Hurd, Judson B. & McLane, Hiram H.
Item Type: Refine your search to only Patent

Feed Water Heater.

Description: Patent for a new and improved water-heater. This design consists in "the combination of the supply-pipe, the supply-tank into which said pipe discharges, the said tank having a perforated bottom through which the water percolates, the vertically-divided cylinder forming the annular heating-chamber, the scatter-plates alternatingly located in diverse directions in said chamber, the said plates arranged to spray the water while heating as it falls from plate to plate, and the exhaust-steam pipe t… more
Date: January 14, 1890
Creator: Knox, George F.
Item Type: Refine your search to only Patent
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