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Attachment for Dental Instruments.

Description: Patent for a dental instrument which is to attach to a dental drill handle. Protecting the patient's tongue from being cut by the drill or grinding disk while the patient's lower teeth are being operated on, including illustrations.
Date: November 19, 1918
Creator: Luzzi, August F.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Boll-Breaker and Cotton-Cleaner.

Description: Patent for improvements to the boll breaker and cotton cleaner by changing the construction and arrangement of parts. The patent uses air pressure to move the bolly cotton through the boll breaker and cotton cleaner chambers.
Date: November 19, 1918
Creator: Gillespie, Solomon E.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Butter-Mold

Description: Patent for "a butter mold embodying means for cutting and shaping a piece of wrapping paper to conform to the configuration of the mold in which it is adapted to be placed to receive the butter." (lines 9-13).
Date: February 19, 1918
Creator: Higginbotham, John
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Automatic Train Signal

Description: Patent for new automatic train signal. It was invented to improve train signaling systems for automatic trains.
Date: November 19, 1918
Creator: Bulla, Melburn Bernie
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Switch.

Description: Patent for a multiple point switch that may be connected to a standard light socket.
Date: November 19, 1918
Creator: Kilmer, Edward J.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Reamer.

Description: Patent for rotary reamers for progressively enlarging holes in pilot drills, particularly roller disk type reamers used in oil, water, or mining applications.
Date: April 19, 1921
Creator: Humason, Granville A.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Compressor.

Description: Patent for a refrigerating machine compressor, which compresses more gas, cools the compressor with the incoming gas, and uses excess heat to dry the gas coming in.
Date: April 19, 1910
Creator: Mayhew, John Daugherty
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Combined Fire Screen and Fender.

Description: Patent for a combined fire screen and fender. This design "works in the mantle-piece by means of weights, and is secured in position by by means of a spring-latch that catches in notches in the jamb. This screen thus arranged can be made to answer for three purposes: By letting it down nearly to the hearth it acts as a blower; by letting it entirely down accidents from fire are prevented, and when let down in the summer time it makes a handsome summer screen" (lines 21-30).
Date: July 19, 1881
Creator: Matthews, James Charles
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Colter Attachment.

Description: Patent for a new and improved colter attachment for plows. This design "consists of a slicing colter or knife attachments to the mold-board, the object of which is to slit or cut the furrow-slice into narrow strips at the same time that it is turned up by the mold-board" (lines 7-11).
Date: December 19, 1882
Creator: Mann, John H.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Combined Copy-Holder and Tablet.

Description: Patent for a combined copy-holder and tablet meant for record keeping. The invention's purposes are to "produce a convenient device designed to be employed ether upon the lap of the operator or upon a counter or other convenient support, and to maintain in position for writing a web of paper, thus requiring no holding of the same by the operator; to provide means for conveniently paying out said web of paper as the same is used or consumed; to provide for conveniently tearing the paper from the… more
Date: December 19, 1893
Creator: Stuart, Benjamin F.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Combination-Tool.

Description: Patent for a tool that is comprised of a hammer, wrench, staple puller, wire cutter, and a claw. Includes illustrations.
Date: October 19, 1897
Creator: Burkhalter, William P.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Coin-Sorter.

Description: Patent for a coin sorter that sorts coins according to their dimensions and places in a receptacle with removable bottom cover to collect the sorted coins.
Date: August 19, 1913
Creator: Haynie, Brooks
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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