1,401,540 Matching Results

Search Results

prev Results: 1387609 - 1387632 next

Mower.

Description: Patent for a new mower designed for use with a single horse and provide a device where the sickle bar may be adjusted at various heights.
Date: July 5, 1921
Creator: Nelson, John Bryon
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Holder for Dental X-Ray Films.

Description: Patent for dental X-Ray holders that securely hold the film in place and categorize the X-Rays into series that comprise views of the whole mouth.
Date: May 17, 1921
Creator: Martin, James Madison
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Sand-Trap

Description: Patent for a sand-trap that will prevent the accumulation of sand by automatically removing the sand from the canals.
Date: unknown
Creator: Hood, James M,
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Process of Treating Hydrocarbons

Description: Patent for a new or improved process which distills heavy hydrocarbon oils into large volumes of gasoline or other lighter volatile liquids.
Date: September 18, 1918
Creator: Andrews, Benjamin & Averill, Willard C., Jr.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Refrigerator

Description: Patent for a refrigerator made of wood with an inner shell of reinforced concrete and vacuum chamber or metal jacket. "The inner concrete shell is divided into four separate chambers, the former containing ice and the other three being adapted to contain food." (lines 61-64)
Date: April 11, 1922
Creator: Knutson, William K.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Method of Casting the Hulls of Ships From Concrete and Floating Said Hulls Into a Launching-Bay.

Description: Patent for an improved, cost-effective method of releasing ship hulls from a mold via "hydrostatic means and floating said hull into the launching bay or channel" (lines 19-21) without the need for exterior scaffolding, including illustrations.
Date: June 28, 1921
Creator: Holmgreen, Julius H.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Process of Making Bearings

Description: Patent for the process of making bearings, for improvement of bearings and the process of bearing formation on the interior of rotary members (or rotary cutters used on earth boring drills).
Date: December 13, 1921
Creator: Fletcher, Harold W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Mold for Casting the Hulls of Concrete Ships.

Description: Patent for an improved concrete hull mold that allows for durable and efficient hull molding without the need for scaffolding or disassembly once complete, with a dual-wall design that allows an intermediate work chamber during the molding process, including illustrations.
Date: June 28, 1921
Creator: Holmgreen, Julius H.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Rotary Engine

Description: Patent for rotary engine, with improvements to rotary engine fluid pressure for motors or engines which pump fluids (such as water motor, water pump, oil pump, ammonia pump or compressor).
Date: December 27, 1921
Creator: Johnson, Louis V.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Method of Sealing the Walls of Deep Wells

Description: Patent for a new and useful method of dealing the walls of deep wells in which the means for lining oil wells by the use of the customary metal casing is avoided, the cost is very materially reduced, and numerous expenses and failures are avoided.
Date: November 29, 1921
Creator: Nolan, William E.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Grain-Toller.

Description: Patent for a simple device that's placed in a grinding mill to automatically extract and regulate the amount of grain being withdrawn.
Date: October 25, 1921
Creator: Perkins, Thomas F.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Crown Setter

Description: Patent for a crown setter that can make impressions of varying sizes with the same tool.
Date: July 6, 1920
Creator: Lewis, Samuel Riley
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Measuring Vessel.

Description: Patent for a measuring vessel that is meant to be used with a gasoline device described in patent application Serial No. 228,889.
Date: June 28, 1921
Creator: McKallip, John C.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Four-Wheel Drive Mechanism

Description: Patent for improvements toward four-wheel drive mechanisms. This includes adding a vertical and central drive to the front wheels so that they have the same speed rate as the back wheels.
Date: August 9, 1921
Creator: Smith, George W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
Back to Top of Screen