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Hydraulic Swivel

Description: Patent for a hydraulic swivel made to control back pressure and designed to be resistant to wear. Illustrations included.
Date: December 10, 1907
Creator: Johnston, Horace G. & Norris, Joseph B.
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Partner: UNT Libraries Government Documents Department

Hydraulic Swivel

Description: Patent for a hydraulic swivel. This design produced a mechanism for supporting a supply hose in a given position.
Date: October 27, 1903
Creator: Johnston, Horace G.; Sturm, William P. & Sturm, Jacob W.
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Partner: UNT Libraries Government Documents Department

Hydrocarbon-Burner.

Description: Patent for Hydrocarbon burner for heating oil along with the steam. This burner will also improve the process of atomizing discharge.
Date: July 22, 1902
Creator: Higgins, James Franklin
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Partner: UNT Libraries Government Documents Department

Switching Device

Description: Patent for a switch throwing device that can be operated from a train car. Illustrations included.
Date: March 21, 1911
Creator: Gordon, Holland F.
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Partner: UNT Libraries Government Documents Department

Means for Propelling Railway Cars.

Description: Patent for a new and improved means for propelling railway cars. This design "relates to motive power for railway-cars, and the purpose thereof is to provide a simple combination of parts whereby each car may be impelled by a separate motor, the entire series throughout a line or train of cars being supplied with energy from a common source, whereby the full horse-power of a steam-boiler may be applied in a manner enabling it to be utilized to the greatest possible advantage and to the utmost e… more
Date: May 21, 1889
Creator: Keith, John M.
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Partner: UNT Libraries Government Documents Department

Pump Attachment for Portable Cans

Description: Patent for a pump attachment for portable cans. This invention is designed to be a attachable/detachable pump for use with coal-oil cans. Its purpose is meant for the transfer of coal oil to lamps.
Date: September 29, 1903
Creator: Blackmon, Paul Jones
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Partner: UNT Libraries Government Documents Department

Oil-Purifier

Description: Patent for "a construction wherein the oil may be quickly and economically heated to cause the impurities to separate from the oil" (lines 9-12).
Date: August 13, 1901
Creator: Carter, George Fitzhugh
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Partner: UNT Libraries Government Documents Department

Surgical Splint.

Description: Patent for a surgical splint specifically for the substitution of erectile tissue of the corpora cavernous of the genital organ to promote fecundation even in the absence of an erection.
Date: July 13, 1920
Creator: Renois, John J.
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Partner: UNT Libraries Government Documents Department

Paint Compound

Description: Patent for "a fire and water proof compound for roofs and the like, possessing great elasticity and capable of contracting and expanding under cold and heat without cracking and peeling off [while also forming] a body equal to cement for covering the nail-heads of roofs and the like" (lines 12-20).
Date: July 15, 1890
Creator: Jackson, Abner A. & Neal, Columbus M.
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Partner: UNT Libraries Government Documents Department

Hoisting Apparatus.

Description: Patent for "an improved hoisting apparatus for use in loading and unloading freight from and upon a wharf, bluff, bank, or other elevated place." (Lines 8-11) Includes instructions and illustrations.
Date: February 23, 1892
Creator: Davis, Benjamin F. & Davis, Matilda L.
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Partner: UNT Libraries Government Documents Department

Hoisting Apparatus.

Description: Patent for improvements in hoisting apparatus by “employing two cables and two sheaves that one cable and one sheave operate to elevate the weight or object in an approximately-vertical plane, so as to avoid contact with any side obstruction, while the secondary cable can subsequently be slackened sufficiently to permit the traveling sheave of the hoisting-cable to run off in a lateral direction and carry with it the sheave of the slackened secondary cable, for the purpose of transferring the o… more
Date: March 22, 1892
Creator: Davis, Benjamin F.
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Partner: UNT Libraries Government Documents Department
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