UNT Libraries Government Documents Department - 18 Matching Results

Search Results

Results: 1 - 18

Apparatus for Forming Gun Barrels.

Description: Patent for an apparatus for forming gun barrels that twists a sheet of metal into a tube for the gun barrel at a slight angle, while slightly flattening the tube into an oval shape. This method is supposed to create ribs within the gun barrel.
Date: September 10, 1917
Creator: Cole, William F.
Item Type: Refine your search to only Patent

Automatic Recording Apparatus for Vehicles.

Description: Patent for an improved automatic passenger register and mileage recorder for vehicles that travel on rails. It consists of a roller that is actives by a time motor, a strip that the roller moves, a pressure roller, a pair of rollers that a record sheet is wound between, a mechanism that controls movements of the pair of rollers, electromagnets that are connected to the seats, armature levers that mark the electromagnets current, a bell crank lever that marks the moving record sheet, and a sprin… more
Date: October 10, 1893
Creator: Baade, John
Item Type: Refine your search to only Patent

Evaporative Cooler.

Description: Patent for an evaporative cooler/refrigerator that is cooled by the evaporation of water with ventilating tubes to maintain the air condition in shelves. Water is adapted to move through a "cloth, flowing downwardly therethrough and being evaporated therefrom to thereby effectually cool the articles disposed within the refrigerator" (lines 28-31). This patent includes illustrations
Date: March 10, 1914
Creator: Henderson, Thomas A.
Item Type: Refine your search to only Patent

Folding Bed.

Description: Patent for a new and improved folding bed. This design consists "of the base having side standards and an intermediate screen, two beds pivotally connected together and to the said standards at their inner corners and adapted to fold on each other and against the said screen, two drop-doors to close the open sides of the base and adapted to extend beneath the outer corners of the beds and support and hold them in a closed position, and two twin springs, one for each side of the bed, each spring… more
Date: May 10, 1892
Creator: Yeager, James Ernst
Item Type: Refine your search to only Patent

Improvement in Cotton-Condensers.

Description: Patent to improve the compressing-roller design in a cotton gin, to keep the mechanisms from clogging. This is an addition to a previous patent by the same inventor that improved methods of cleaning the cotton. It includes an explanation with references, and illustrations.
Date: December 10, 1878
Creator: Donovan, John T.
Item Type: Refine your search to only Patent

Metallic Awning.

Description: Patent for improvement in metallic awning by using a plurality of toggle-bars pivoted together and connected to the house, awning-plates carried by toggle-bars, straps provided with a stud and slot, respectively, connected to the lower member of the toggle-frame to prevent it from opening downward too far. A cord connected to the toggle-bars for raising or lowering the awning. (Page. 2, lines 8-17) Illustration is included.
Date: March 10, 1903
Creator: Cornitius, Ernst
Item Type: Refine your search to only Patent

Pipe-Cutter.

Description: Patent for a pipe cutter in which "a portion of the material of the pipe is removed to form the cut, instead of the material being displaced and wedge apart without removing".
Date: June 10, 1913
Creator: Johnson, Willie Harry
Item Type: Refine your search to only Patent

Sifter

Description: Patent for a flour sifter with a double sieve and agitator that can be operated simultaneously. Both sieves are detachable for cleaning.
Date: August 10, 1915
Creator: Green, Shirley M.
Item Type: Refine your search to only Patent

Washing-Machine.

Description: Patent for an improvement in washing-machine by attaching two horizontal "braces" to the supporting legs of the suds-box, and making the supporting legs adjustable both vertically and laterally. This feature would allow the adjustment of the suds-box’s position and to spread the legs for a firmer support of the suds-box. Illustration is included.
Date: February 10, 1891
Creator: Schrib, Juni
Item Type: Refine your search to only Patent
Back to Top of Screen