UNT Libraries Government Documents Department - 146 Matching Results

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Car-Couplings

Description: Patent for equipment to improve car-coupling to allow "automatically couple the cars, which can be readily uncoupled with-out going between the cars" (line 14-16).
Date: February 19, 1901
Creator: Lyons, Robert N.
Item Type: Refine your search to only Patent

Clothes-Pin.

Description: Patent for a wire clothes pin that is attached to the clothesline and is easily opened or closed to attach or remove clothes.
Date: March 19, 1907
Creator: Burleson, Pleasant Wright
Item Type: Refine your search to only Patent

Combined Rubber Dam and Tooth Backing Punch

Description: Patent for a combined rubber dam and tooth-backing punch. "This invention relates to new and useful improvement in dental instruments and more particularly it has references to a punch for forming holes accurately in the backing which is used on teeth in construction of bridges, plates, and cognate work" (line 12-17). Illustration included.
Date: May 19, 1908
Creator: Bell, Harry M.
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Apparatus for Treating Ankylosis of the Knee

Description: Patent for an apparatus for treating knee ankylosis that is ready to use at a moments notice "without unnecessary or nervous shock to the invalid to apply the requisite heat, extension, and flexion to an afflicted part to render it supple and restore to its natural functions". (lines 11-15).
Date: September 19, 1905
Creator: Norwood, Robert R.
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Can Opener

Description: Patent for can-opener which uses a fulcrum point that pierces the center of the can's lid and a circular blade to cut an opening around the circumference.
Date: August 19, 1902
Creator: Pierce, Jesse Washington
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Carpenter's Square.

Description: Patent for a carpenter's square, which has a table of rafter cut measurements, a table of measurements in inches, and the standard carpenter's measure table.
Date: October 19, 1909
Creator: Bailey, Louis Eugene
Item Type: Refine your search to only Patent

Animal Trap

Description: Patent for an animal trap, particularly desgned for rodents and birds, which is able to trap animals without having to be manually reset each time. Illustrations included.
Date: January 19, 1909
Creator: Barron, Nathan J.
Item Type: Refine your search to only Patent

Auxiliary Piano Pedal

Description: Patent for an auxiliary piano pedal. This invention is an improvement to the construction of an auxiliary pedal and foot-rest for children. Illustration included.
Date: March 19, 1907
Creator: Norcross, Levi Watson
Item Type: Refine your search to only Patent
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