UNT Libraries Government Documents Department - 125 Matching Results

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Acetylene-Gas Generator

Description: Patent for an improved automatic acetylene-gas generator which allows the carbid vessel to recharge with carbid without permitting the escape of gas, and also to simplify the construction of the generator.
Date: March 19, 1901
Creator: Elkins, George L.
Item Type: Refine your search to only Patent

Angle-Cock.

Description: Patent for "a locking device for the train pipe valve or plug, and a connection separate from the train pipe and under the control of the engineer, to manipulate the said locking device and secure the valve or plug in position." (Lines 13-18) Includes instructions and illustrations.
Date: March 19, 1895
Creator: Waldron, William J.
Item Type: Refine your search to only Patent

Apparatus for Handling Lint-Cotton.

Description: Patent for an apparatus for handling lint-cotton that allows air to move freely without back pressure while putting the fiber into a bat. It has a "trunk into which a series of gins deliver, of a primary condenser having a high surface speed, so that it will rapidly remove the fiber and prevent the bat from building up of such thickness as to check the escape of air, and a second condenser having a slower surface speed and arranged to receive the lint from the first condenser and form it into a… more
Date: March 19, 1895
Creator: Campbell, Douglas M.
Item Type: Refine your search to only Patent

Artificial Stone.

Description: Patent for artificial stone made of a special combination of cement that hardens and stays hard under water. It also does not conduct heat.
Date: March 19, 1895
Creator: Power, John H. & Power, Rufus M.
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

Book Carriage and Protector.

Description: Patent for a new and improved mobile bookcase. This design is "composed of a base-piece having a longitudinally-central raised table-piece adapted to support the leaves of the book, and a depressed-ledge portion outside thereof adapted to support the cover of the book" (lines 20-25).
Date: March 19, 1889
Creator: Leith, Lawrence C.
Item Type: Refine your search to only Patent

Can-Opener.

Description: Patent for a can opener that is made from "a single flat piece of metal" (line 17) and is made for ease of operation, reducing the chance of the user cutting themselves.
Date: March 19, 1918
Creator: Williams, Paul E.
Item Type: Refine your search to only Patent

Car Brake.

Description: Patent for a new and improved car-brake. This design consists in "[t]he combination, with the transverse beam of the truck, of the levers pivoted to the under side of the same, the brake-shoes, the pitmen connecting the brake-shoes with the levers, the straps secured to the beam, the retaining-rods having their ends pivoted to the pitmen and the straps, and devices for operating the levers" (lines 94-101).
Date: March 19, 1889
Creator: Mayer, Charles
Item Type: Refine your search to only Patent

Car-Coupling.

Description: Patent for improved car couplings "of the Janney type, capable of readily coupling on short curved, and adapted to be either coupled or uncoupled without going between cars. A further object of the invention is to provide means whereby the parts may be readily set for automatic coupling, or to prevent coupling." (Lines 13-20) Includes instructions and illustrations.
Date: March 19, 1895
Creator: Armstrong, James P.
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

Cotton Seed Cleaner.

Description: Patent for a new and improved cotton-seed cleaner. This design "is to be used in connection with a machine for removing short lint from cotton-seed . . . The object of the invention is to provide a new and improved cotton-seed cleaner, which is simple and durable in construction and very effectively removes all impurities from the shell of the seed. . . . The invention consists of a revolving horizontal disk-brush and of a fixed table provided with emery-slabs and perforated plates and in conta… more
Date: March 19, 1889
Creator: Baumgarten, Christian
Item Type: Refine your search to only Patent

Cultivator

Description: Patent for a cultivator. This invention is an attachment used to connecting with other machines to cultivate the ground. Illustration included.
Date: March 19, 1907
Creator: Wheeler, Claud H.
Item Type: Refine your search to only Patent
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