UNT Libraries Government Documents Department - 18 Matching Results

Search Results

Results: 1 - 18

Fayettsville Quadrangle

Description: Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:62500
Date: 1919
Creator: United States. Army. Corps of Engineers.
Item Type: Refine your search to only Map
Location: 29.88 -96.62

Triple Valve.

Description: Patent for a triple valve for brake systems on trains, which reduces pressure in the air pipes of the train and automatically brakes if there is a broken air hose.
Date: July 26, 1910
Creator: Torbron, Orin F.
Item Type: Refine your search to only Patent

Bat-Forming Apparatus.

Description: Patent for an apparatus to form bats, made of fibrous material, to be placed in the coverings or tickings to make mattresses. The apparatus works so that "the bat-forming fibrous material may be evenly distributed, and by which the mattress-forming operation may be expeditiously carried on" (lines 16-19). The patent includes illustrations.
Date: September 23, 1913
Creator: Haynes, Daniel & Haynes, Richard H.
Item Type: Refine your search to only Patent

Ventilator.

Description: Patent for a ventilating cowl for buildings for fire prevention by causing smoke and sparks to pass outside of a building or deflate to the surface below. The cowl is cone shaped with a deflecting surface and has several rings through which smoke and sparks can pass through to the outside.
Date: November 30, 1915
Creator: Ashorn, Inshrish
Item Type: Refine your search to only Patent

Acetylene-Gas Generator.

Description: Patent for "an improved apparatus for generating acetylene gas" (lines 12-13). The apparatus includes a carbid receptacle with a conical bottom and a cylindrical valve for better control of the carbid, as well as a gas tank with a gasometer-bell which operates the system.
Date: December 3, 1918
Creator: Lay, Claud
Item Type: Refine your search to only Patent

Clothes-Rack.

Description: Patent for "a new and improved clothes rack, adapted to be carried in one's pocket," (lines 8-10) including instructions and illustrations.
Date: July 1, 1919
Creator: Walling, Carl H.
Item Type: Refine your search to only Patent
Back to Top of Screen