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UNT Libraries Government Documents Department - Browse


Journal-Box Oil-Cup

Description: Patent for an oil cup for lubricating journal boxes. Illustrations included.
Date: October 12, 1910
Creator: Alexander, Colwell Hyman
Item Type: Patent

Non-Refillable Bottle.

Description: Patent for improvements to non-refillable bottles to prevent tampering and/or re-filling of container with alternate substance. Item is designed to be used on any ordinary bottle.
Date: August 19, 1902
Creator: Allen, Edward
Item Type: Patent


Description: Patent for improved car couplings "of the Janney type, capable of readily coupling on short curved, and adapted to be either coupled or uncoupled without going between cars. A further object of the invention is to provide means whereby the parts may be readily set for automatic coupling, or to prevent coupling." (Lines 13-20) Includes instructions and illustrations.
Date: March 19, 1895
Creator: Armstrong, James P.
Item Type: Patent


Description: Patent for a wrench. Illustration included.
Date: March 13, 1903
Creator: Baldwin, Thomas J.
Item Type: Patent

Ice Hook

Description: Patent for an ice hook.
Date: December 21, 1903
Creator: Ball, Thomas J.
Item Type: Patent

Ice-Making Apparatus

Description: Patent for an ice-making apparatus that both cools the brine and makes the ice.
Date: December 31, 1912
Creator: Bell, Samuel Robert
Item Type: Patent

Rotary for Oil-Wells.

Description: Patent for a pipe rotary for use "in sinking oil-wells" (line 10). The patent allows for the power to be applied to the "pipe-sections which constitute the casing of the well" (line 14-15).
Date: February 6, 1906
Creator: Bernard, Horace D.
Item Type: Patent

Valve For Oil Wells

Description: Patent for a valve for oil wells. This invention is designed to control the flow of oil during drilling. Illustration included.
Date: May 18, 1905
Creator: Bernard, Horace D.
Item Type: Patent


Description: Patent for a rotary drilling machine for drilling oil wells that has a stronger grip than previous drills.
Date: August 6, 1912
Creator: Black, Lee J.
Item Type: Patent


Description: Patent for a drying machine for stone, clay and related substances that will not burn the materials.
Date: March 4, 1913
Creator: Black, Lee J.
Item Type: Patent

Rotary Drilling-Machine

Description: Patent for a rotary drilling machine for drilling oil wells. Illustrations included.
Date: July 6, 1912
Creator: Black, Lee J.
Item Type: Patent

Steam Feed

Description: Patent for a steam feed. This invention is designed "for sawmill carriages characterized by a steam cylinder, and a piston operating in the cylinder and having its rod connected to the sawmill carriage" (line 9-12). Illustration included.
Date: January 24, 1911
Creator: Black, Lee Jackson
Item Type: Patent

Root Crop Harvester

Description: Patent for a root crop harvester. This invention is designed for the harvesting of peanuts, potatoes, sugar beets, turnips, onions, etc. Illustration included.
Date: July 23, 1908
Creator: Bourland, Joseph M.
Item Type: Patent

Hotel Office Dinkey

Description: Patent for an hotel office dinkey. Illustration included.
Date: July 3, 1905
Creator: Browder, Henry Worden
Item Type: Patent

Mode of Straining Saws by Atmospheric Pressure.

Description: Patent for the improvement of the reciprocating saw by simplifying the arrangement of cylinders, pipes, and exhaust pumps to produce the necessary vacuum, including illustration.
Date: August 14, 1855
Creator: Brown, A. & Coffin, Abel, Jr.
Item Type: Patent

Pumping Apparatus.

Description: Patent for pumping apparatus. This invention provides a means to elevate liquids by use of compressed air. It is specifically intended for deep oil-wells.
Date: August 25, 1903
Creator: Cain, Francis Charles & Herrenkind, Oscar Charles
Item Type: Patent


Description: Patent for a signal that allows trainmasters to move trains in sections. Illustration included.
Date: September 8, 1908
Creator: Cairncross, Robert L.
Item Type: Patent


Description: Patent for a log-carrier with an improved construction from a previous patent (No. 539,380). Improvements include a change in "the angle of strain of the draft-chain as the lever approaches the horizontal position...when the load is elevated" (lines 34-37). It also maintains "a uniform leverage without the use of guide-rollers or other means" (lines 54-56), and balances the sliding tongue so that "the team is relieved of the weight thereof" (line 62).
Date: December 8, 1896
Creator: Carroll, Joseph Alexander
Item Type: Patent

Casing Spear

Description: Patent for casing spears. This invention is designed for pulling well tubes or casings that have broken off out of the well. Illustration included.
Date: September 13, 1907
Creator: Carroll, Monroe W. & Johnston, H. G.
Item Type: Patent

Electrically-Actuated Sawmill Set-Works

Description: Patent for an electrically-actuated sawmill set-works that regulates movement of the clutch-stop and set-shaft, which determines the extent of knee-movement including illustrations.
Date: October 16, 1900
Creator: Carroll, William M.
Item Type: Patent