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Oil-Burner

Description: Patent for an oil burner that converts petroleum fuel into gas with its own heat. Illustrations included.
Date: December 3, 1907
Creator: Ziegler, John C.
Partner: UNT Libraries Government Documents Department

Pipe-Pulling Device.

Description: Patent for a device for pulling pipes from wells without damaging the pipe, with a safety feature in case the pipe breaks.
Date: September 25, 1917
Creator: Osborne, William R.
Partner: UNT Libraries Government Documents Department

Pipe-Tongs.

Description: Patent for improvement upon the use of chain tongs. The invention "permits the application of a very strong rotative force" (lines 11-12), "produce rotation of a pipe in either direction" (lines 17-18), and "provides a chain tong which will not crush the pipe..." (lines 22-23).
Date: May 12, 1914
Creator: McLeod, Rueben A.
Partner: UNT Libraries Government Documents Department

Pipe Clamping Device

Description: Patent for improvements of a pipe-clamping device which is durable and easy to construct.
Date: August 25, 1915
Creator: Lincoln, Robert A.
Partner: UNT Libraries Government Documents Department

Pipe Tongs Support.

Description: Patent for pipe tongs supports to provide a pipe tongs support that will permit a pipe tongs to be so balanced that it will tend to maintain itself in a horizontal position which is the position in which its use is required.
Date: August 3, 1915
Creator: Hoffer, Temple B.
Partner: UNT Libraries Government Documents Department

Pipe-Tongs.

Description: Patent for "a new and useful improvement in pipe-tongs" (lines 5-6) including illustrations and instructions.
Date: July 21, 1914
Creator: Meredith, John De Witt
Partner: UNT Libraries Government Documents Department

Rope-Socket.

Description: Patent for rope socket "for use in connection with oil well drilling bits" (lines 13-14) "which can be quickly, easily and conveniently adjusted to provide a swivel or nonswivel socket as desired" (lines 16-19) including illustrations.
Date: May 28, 1917
Creator: McConnell, Scott Russell
Partner: UNT Libraries Government Documents Department

Refrigerator

Description: Patent for improvements for vacuum refrigerators such that cold air circulation and heat exclusion are improved, including illustrations.
Date: June 27, 1922
Creator: Knutson, William K.
Partner: UNT Libraries Government Documents Department

Electric Battery

Description: Patent for an electric battery. This battery is designed to be more efficient and run for a longer time, without adding water.
Date: October 24, 1922
Creator: Holmes, Frank M.
Partner: UNT Libraries Government Documents Department

Door-Check.

Description: Patent for a door check that will be able to hold the door in any desired position to which it may be moved and it will prevent the slamming or sudden closing of the door.
Date: November 27, 1917
Creator: Winfrey, Edgar M. & Pike, John J.
Partner: UNT Libraries Government Documents Department

Cotton-Threshing Machine.

Description: Patent for an improvement to cotton-threshing machines that threshes "the cotton crop by extracting and separating the cotton locks from the bolls and stalks" (lines 13-15). This patent includes instructions and illustrations.
Date: November 27, 1917
Creator: Patterson, Warren A. & Kemp, Joseph A.
Partner: UNT Libraries Government Documents Department

Curtain-Fixture.

Description: Patent for improvements in curtain fixtures "in which the brackets supporting the spring curtain-roller may be raised or lowered to admit light above the curtain." (Lines 13-16) Includes instructions and illustrations.
Date: September 7, 1897
Creator: Winfrey, Edgar M.
Partner: UNT Libraries Government Documents Department

Cultivator

Description: Patent for improvements to cultivators.
Date: May 21, 1901
Creator: Skeen, Virgil G.
Partner: UNT Libraries Government Documents Department

Cotton-Threshing Machine.

Description: Patent for a cotton threshing machine with wheels designed to be constructed in the cotton field and easily moved to different parts of the field.
Date: May 29, 1917
Creator: Patterson, Warren A.
Partner: UNT Libraries Government Documents Department

Cotton-Chopper Attachment.

Description: Patent for Cotton-Chopper Attachment. This invention relates to cotton chopper attachments for cultivator frames and has for its object to provide an attachment of simple structure which may be easily and quickly applied to the frame of a cultivator or detached from the same" (lines 9-14).
Date: unknown
Creator: Mathus, Charles W.
Partner: UNT Libraries Government Documents Department

Shade-Bracket.

Description: Patent for window shade brackets.
Date: June 17, 1902
Creator: Winfrey, Edgar M.
Partner: UNT Libraries Government Documents Department

Sash Lock

Description: Patent for a sash lock. This invention pertains to railway cars. Illustration included.
Date: November 8, 1904
Creator: Hughes, Henry B.
Partner: UNT Libraries Government Documents Department

Sack-Protector.

Description: Patent for an improvement to sacks, as used in picking berries, to protect the bag from deterioration caused by dragging of the sack on the ground.
Date: March 4, 1919
Creator: Roer, William A.
Partner: UNT Libraries Government Documents Department

Gang-Plow.

Description: Patent for a gang plow for “the use of a greater or lesser number of plow units in the gang or series and, to provide as a rear support for the plow a rear furrow-wheel associated with adjusting means for raising or lowering the rear end of the plow to regulate the depth of cut and; with additional adjusting means arranged to shift the crank-axle of said wheel to properly resist the side draft of the plow and, to aid in directing the latter in four-side plowing in order that comparatively sharp… more
Date: January 3, 1905
Creator: Luecke, Henry C.
Partner: UNT Libraries Government Documents Department

Rifle.

Description: Patent for a rifle that uses electricity from a battery to ignite the explosive charge for the ammunition.
Date: January 14, 1919
Creator: Brannon, Virgil C.
Partner: UNT Libraries Government Documents Department

Cut-off Valve for Pipe-Lines

Description: Patent for cut-off valve for pipe-lines intended for oil companies.
Date: April 30, 1918
Creator: Hagern, Joseph F.
Partner: UNT Libraries Government Documents Department

Device for Recovering Tools from Wells.

Description: Patent for a device to lift and recover tools, such as drill-bits, that have been dropped or lost in wells. The device features two prongs that may be engaged to grip or secure in a "biting hold" (line 50) various objects, illustrations included.
Date: September 9, 1919
Creator: Scott, Augustus B.
Partner: UNT Libraries Government Documents Department

Fuel Rod Coupling

Description: Patent for a new type of fuel rod coupling, or "sucker rod," meant to increase the durability of pipes and rods used in drilling operations.
Date: June 3, 1919
Creator: Sheldon, W. J. & Allen, C. H.
Partner: UNT Libraries Government Documents Department
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