52 Matching Results

Search Results

Results: 1 - 24 next

Process of Mining Sulfur.

Description: Patent for innovations in the underground fusion or Frasch process of mining sulfur, "which comprises conducting an appropriate fusing medium [such as hot water] into the formation containing the sulfur deposit and thereby melting the sulfur" (lines 91-95). Central to the innovations is the use of a compressed gas to "eliminate or largely reduce heat losses in porous rock and exhausted sulfur regions at the higher levels of the mine where the presence of the hot water is of no benefit so far as… more
Date: December 27, 1921
Creator: Drachenberg, August Toby
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Improvements to Auxiliary Clutch-Pedal Lever

Description: Patent for improvements in Auxiliary Clutch-pedal Levers for tractor foot pedal levers, providing much greater operability when attached, but does not interfere with the driver's use of the pedal in a traditional manner.
Date: unknown
Creator: Stoltz, Otto W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Brush Cylinder for Gins.

Description: Patent for a brush cylinder for gins which "aims to provide novel and improved means for securing the brush sticks in place and for enabling them to be readily removed and replaced." (lines 9-12) including instructions and illustrations.
Date: December 29, 1914
Creator: Robertson, B.A.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Spring

Description: Patent for a spring "wherein all of the parts are removably connected to each other so as to be convenient and inexpensive to repair." (Line 11-14)
Date: November 3, 1914
Creator: Avera, Lawrence A.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Toggle and Clip Combination.

Description: Patent for improvement in toggle and clip combinations, specifically simplicity and economy in construction, convenience, and efficiency in use.
Date: August 11, 1914
Creator: Schoellkopf, Jacob Frederick
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Maize Header and Cutter.

Description: Patent for a new and improved hand-operated implement designed for cutting heads of Kafir corn or maize in a more simple and efficient manner, including illustrations.
Date: August 29, 1916
Creator: Grindstaff, Isaac S. & Johnson, Luke
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Gasket or Washer

Description: Patent for "a gasket or washer adapted to be used upon garden hose, steam pipes, air brake hose, automobile hose, fire hose" (lines 9-11).
Date: June 16, 1914
Creator: Toepperwein, Ferdinand L.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Educational Device.

Description: Patent for "improvements in combined desk and blackboard devices arranged in convenient shape for opening and closing and reversing in position" (lines 8-11); including instructions and illustrations.
Date: November 4, 1913
Creator: Fanning, Sam H.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Direction-Indicator.

Description: Patent for a direction indicator that is "extremely simple, durable, efficient in operation, and inexpensive to manufacture" (lines 20-22). It is "an improved electrically operated direction indicator, in the nature of an arm pivotally mounted in a casing and operated by an electro-magnetically controlled lever [...] for indicating the directions in which the vehicle to which the device is applied, is about to move" (lines 10-17), including illustrations.
Date: May 16, 1916
Creator: Justus, Fred E.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Flying-Machine

Description: Patent for improvements with the construction of flying machines to make them adaptable and more safe, including illustrations.
Date: March 25, 1913
Creator: Bell, Frank M.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Baling-Press.

Description: Patent for new bailing press that that improves "hay-presses of the full circle or continuous type for baling hay, straw, and the like." (lines 8-10) Illustrations included.
Date: May 1, 1900
Creator: Leineweber, Francis & Welge, Charles
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Window Light Regulator

Description: Patent for a window light regulator. The light regulator is designed of two shades. The first shape is dark and the other is transparent. Illustration included.
Date: April 16, 1907
Creator: Alrich, Henry
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Tool-Sharpener.

Description: Patent for a tool sharpener for various farm equipment such as plows or tools.
Date: March 23, 1909
Creator: Kirksey, Elijah F. & Stegall, John T.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Plastic Fence-Post.

Description: Patent for a plastic fence post that wire fencing or wooden rails can be attached to that has the connection areas on the post hollowed out to protect the parts from the weather.
Date: December 24, 1907
Creator: Libhart, Hugh P.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
Back to Top of Screen