59 Matching Results

Search Results

prev Results: 49 - 59

Core-Drill.

Description: Patent for a core drill for making bore holes in rocks to get out solid samples of the inside of rocks, which has an improved grabbing method for retrieving the piece of rock inside the hole.
Date: August 3, 1909
Creator: McLoughlin, Malacha J. & Wynn, John S.
Partner: UNT Libraries Government Documents Department

Adding-Machine.

Description: Patent for an adding-machine meant to "add fixed amounts of money received or to calculate the number of days a laborer has worked or the number of fractions of days" (lines 14-17). Mounted keys have mechanisms that rotate a ratchet wheel or disk. "Secured to the shaft upon which this ratchet wheel or disk is mounted is a rate-indicator, consisting of a disk divided off into radial sections, and also divided by lines running parallel to the circumference of said disk, dividing the same up into … more
Date: August 27, 1895
Creator: McElyea, James L.
Partner: UNT Libraries Government Documents Department

Combination Set-Collar for Well-Strainers.

Description: Patent for a combination set-collar for well-strainers that combines a back pressure valve and a washer pipe which allows for the cleaning of the strainer.
Date: November 25, 1919
Creator: Thompson, Alexander
Partner: UNT Libraries Government Documents Department

Car - Coupling

Description: Patent for a new and useful improvements in car-couplings. This design "relates to car-couplers of the pivoted-hook type" (line 11 -12).
Date: February 8, 1898
Creator: Chance, Ransom M.
Partner: UNT Libraries Government Documents Department

Car-Loading Device

Description: Patent for a device used in the loading of train cars with reduced manual effort.
Date: November 16, 1914
Creator: Davison, George E.
Partner: UNT Libraries Government Documents Department

Bending-Machine.

Description: Patent for a new machine providing "a simple, efficient and easily operated fluid-pressure actuated machine" for the straightening of railway rails (lines 12-14)
Date: November 5, 1918
Creator: Keely, William
Partner: UNT Libraries Government Documents Department

Bit Cleaner

Description: Patent for a device that will clean drill bits used for wells without needing to remove them from the ground. Additional aspects of the patent cover fittings and attachments necessary for better operation of the drill bits and the cleaner.
Date: February 17, 1920
Creator: Robichaux, Sosthene
Partner: UNT Libraries Government Documents Department

Boiler Feeder

Description: Patent for a boiler feeder. This invention is intended to be placed above the boiler and via a regulator supplies water to the boiler.
Date: November 24, 1903
Creator: Herrington, William
Partner: UNT Libraries Government Documents Department

Casing Head

Description: Patent for a Case-Head. This case-head is used in oil wells. Its purpose is to ensure a tight seal around a pipe so that gas can flow properly through the tube.
Date: August 10, 1918
Creator: Kinzbach, Frank
Partner: UNT Libraries Government Documents Department

Automatic Boiler-Feed

Description: Patent for a steam boiler which automatically fills the boiler with water to the proper levels and keeps the levels steady.
Date: August 11, 1908
Creator: Twombly, Harry Denny
Partner: UNT Libraries Government Documents Department

Animal-Tread.

Description: Patent for improvements in animal-treads when “animal is placed in the tread, the single or double tree being attached to the arm c’, and thus in addition to his weight he will have his strength to operate the tread. The function of the rope and weight is to keep the traces and tree from under the animal’s feet in case he should slack his speed, and thus prevent his tripping.” (Lines 59-66) Illustration is included.
Date: June 16, 1891
Creator: Bevil, John R.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen