UNT Libraries Government Documents Department - 75 Matching Results

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Spring

Description: Patent for a spring for footwear that helps facilitate foot movement such as walking, running, jumping, etc. Illustrations included.
Date: September 8, 1908
Creator: Backermann, Henry G.

Ant Trap.

Description: Patent for a new and improved ant trap. This design "has for its object the production of a simple, cheap, and effective device whereby the ants are confined to a space within the circle of the trap, speedily captured, and exterminated. It consists in a trap constructed with a circular flanged pit provided with tubes leading therefrom to a central ant-receptacle; also, in the details of construction of the trap" (lines 8-16).
Date: November 9, 1886
Creator: Barnes, Robert Hanson & Salles, George Camiel

Insecticide.

Description: Patent for an insecticide that uses an arsenic compound to kill insects instead of Paris green or London purple, and can easily be made into a beautiful green powder that may be used as a pigment.
Date: November 27, 1894
Creator: Brumleu, Ludwig & Brumleu, Ernest

Vechicle-Top Support.

Description: Patent for "supports for the bows of folding vehicle-tops, and has for its object to provide an improved device of this character for application to one end of the shifting rail of the top, so as to receive the bows and cushion them against injury in folding and when the vehicle is passing over a rough roadway." (Lines 8-15) Illustration included.
Date: May 15, 1900
Creator: Buchanan, Sanford McElroy

Combined Book and Pencil Holder.

Description: Patent for a book and pencil holder that mounts a pencil or pen and attaches to a book. The combined book and pencil holder uses a clamp so the pen or pencil attached to the book inside a pocket is maintained in a pocket and does not fall out.
Date: May 13, 1913
Creator: Colbert, Charles W.

Car-Replacer.

Description: Patent for a car-replacer that is simple and inexpensive and can be easily set and removed. The replacer has two blocks shaped like triangles and tie rods connecting the blocks.
Date: February 13, 1894
Creator: Debose, Albert S.

Combined Railway-Switch and Car-Replacing Mechanism.

Description: Patent for a combined railway-switch and car-replacing mechanism that is meant to "provide certain improved devices which can be arranged to operate as a switch mechanism, or as car replacing means, which can be easily manipulated, are of a simple construction and which will effectively serve for their intended purposes" (lines 11-16). It can be easily assembled and dissembled.
Date: November 27, 1894
Creator: Debose, Albert S.

Boll-Weevil or Other Insect Destroyer.

Description: Patent for improvement to the machine set forth in the patent granted to John S. Doak and Alexander G. Farrington on April, 1902, No. 696419. (Page 1, lines 12-14.) The improvements are to use “a pair of troughs connected to a truck and provided with upwardly-projecting wings on their outer edges, spring-arms attached to the truck and pressing normally against the wings and the outside parts of the troughs, spiral springs adjustably mounted on the truck and pressing against the spring-arms, and means for forcing insects from growing plants into the troughs.” (Page 3, lines 74-83.) Illustration is included.
Date: March 28, 1905
Creator: Doak, John S. & Farrington, Alexander G.

Baby-Protector.

Description: Patent for a protective device for a baby (infant) which is designed to keep the child from sufficiently bending their arms and reaching their mouth, thereby preventing the child from potentially ingesting dangerous foreign articles.
Date: September 16, 1913
Creator: Dodd, Jacob Everette & Dodd, J.E.

Washing-Machines.

Description: Patent for an improvement in washing machines. The shaping and components are meticulously detailed and indicate they play a part in the said improvement.
Date: January 20, 1874
Creator: Eberhardt, T. C.

Addressing-Machine.

Description: Patent for an improved addressing machine, which will "paste, cut, and attach the slip simultaneously, or with one operation" (lines 26-27), with instructions and illustrations.
Date: December 27, 1887
Creator: Eberhardt, Theophilus Charles

Paper Holder and Cutter.

Description: Patent for a new and improved paper cutter. This design "relates to that class of paper holders and cutters in which the paper is drawn through a holder and severed at any desired point. Its objects are to secure a cheap, simple, durable, efficient, and easily-manipulated apparatus capable, if required, of holding several sheets of the same or different widths, which can be fed side by side and cut to the requisite length, leaving a projecting edge behind the cutter to afford ready means of drawing out the succeeding sheet" (lines 9-19).
Date: November 13, 1888
Creator: Eberhardt, Theophilus Charles

Printing Plate.

Description: Patent for a new and improved printing-plate. This design "relates to an improvement in printing-plates designed particularly for printing mailing-lists for newspapers and other periodicals" (lines 8-11). To this end, it consists in "[t]he combination of the bar or holder having the downwardly and inwardly turned ends, and the printing-plates secured on the former . . . of the loop loosely mounted on the plate, and the interposed wedge-shaped locking-key" (lines 5-16).
Date: July 22, 1890
Creator: Eberhardt, Theophilus Charles