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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
Partner: UNT Libraries Government Documents Department

Attachment For Surveying Instruments

Description: Patent for attachment for surveying instruments. Illustrations included.
Date: February 18, 1904
Creator: Armstrong, Edward R.
Item Type: Patent
Partner: UNT Libraries Government Documents Department

Car-Coupling.

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
Partner: UNT Libraries Government Documents Department

Wrench

Description: Patent for a wrench. Illustration included.
Date: March 13, 1903
Creator: Baldwin, Thomas J.
Item Type: Patent
Partner: UNT Libraries Government Documents Department

Ice Hook

Description: Patent for an ice hook.
Date: December 21, 1903
Creator: Ball, Thomas J.
Item Type: Patent
Partner: UNT Libraries Government Documents Department

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
Partner: UNT Libraries Government Documents Department

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
Partner: UNT Libraries Government Documents Department

Hotel Office Dinkey

Description: Patent for an hotel office dinkey. Illustration included.
Date: July 3, 1905
Creator: Browder, Henry Worden
Item Type: Patent
Partner: UNT Libraries Government Documents Department

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
Partner: UNT Libraries Government Documents Department

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
Partner: UNT Libraries Government Documents Department

Log-Carrier.

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
Partner: UNT Libraries Government Documents Department

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
Partner: UNT Libraries Government Documents Department

Well-Bailing Apparatus

Description: Patent for specifications of Well Bailing Apparatus.
Date: August 27, 1907
Creator: Carroll, Monroe. W.
Item Type: Patent
Partner: UNT Libraries Government Documents Department

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
Partner: UNT Libraries Government Documents Department

Fence Post Mold

Description: Patent for fence post mold. Illustration included.
Date: February 17, 1906
Creator: Collier, William Reid
Item Type: Patent
Partner: UNT Libraries Government Documents Department

Railway-Switch

Description: Patent for a railway switch. Illustrations included.
Date: December 15, 1906
Creator: Collier, William Reid
Item Type: Patent
Partner: UNT Libraries Government Documents Department

Process of Producing Briquets

Description: Patent for a process of producing briquets.
Date: March 20, 1903
Creator: Davidson, John Milne
Item Type: Patent
Partner: UNT Libraries Government Documents Department

Method Of Drilling Wells

Description: Patent for a method of drilling wells. This invention is known as the rotary process that deals with alluvial deposits at different levels such as sand, water flows, gravel, gas under pressure, and boulders. Illustration included.
Date: August 5, 1905
Creator: Decker, Harry R.
Item Type: Patent
Partner: UNT Libraries Government Documents Department

Oil Well Drill.

Description: Patent for a new rotary oil drill with improvements to anchor the drill-pipe, improve oil flow, and prevent blow-outs of the drill-pipe.
Date: July 3, 1903
Creator: Decker, Harry R.
Item Type: Patent
Partner: UNT Libraries Government Documents Department

Saw-Hammering Machine.

Description: Patent for a simple hammering machine for circular saws that "carries the saw in such a way that it may be held at any necessary or desired angle to suit the operator, which has a sliding anvil adapted to be adjusted so as to come opposite the various parts of the saw, which is provided with an adjustable hammer adapted to be brought opposite the anvil, which is constructed so as to cause a blow to expand both sides of the saw equally, and which in general is intended to facilitate the quick and efficient hammering of a saw" (lines 12-23).
Date: July 18, 1893
Creator: Dillon, Thomas H.
Item Type: Patent
Partner: UNT Libraries Government Documents Department

Dust Separating Apparatus

Description: Patent for a dust separating apparatus. This device is designed for seperating dust from the air. Illustrations included.
Date: July 26, 1904
Creator: Duke, Holmes
Item Type: Patent
Partner: UNT Libraries Government Documents Department