UNT Libraries Government Documents Department - 2,691 Matching Results

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Water-Heater.

Description: Patent for a water heater for use in small spaces. This water heater heats water rapidly and is less costly as well as smaller than a standard boiler.
Date: August 4, 1903
Creator: Damm, William

Water Heater.

Description: Patent for easy to clean water heater that is meant to deal with issues of hard water residue collecting on parts. Includes Illustrations.
Date: January 22, 1901
Creator: McKinnon, Thomas J.

Lock

Description: Patent for a combination lock that is able to be changed at will due to its arrangement of parts.
Date: November 24, 1903
Creator: Katzenberger, Oscar

Lining for Cells, Vaults, or the Like

Description: Patent for Lining for Cells, Vaults, or the Like. The Linings whether employed in Jail-Cells or other Similar Buildings , and the object thereof is to provide a structure made up of parts which may be placed within a room or enclosure and securely built therein without necessity of using patch-bolts or screws.
Date: November 25, 1902
Creator: Youngblood, David F.

Key.

Description: Patent for a key, which can be produced in quantity but without any of them being able to open the same door.
Date: February 4, 1908
Creator: Katzenberger, Oscar

Lock

Description: Patent for a lock. This invention is a design of door lock that uses a key and combination. Illustration included.
Date: February 12, 1907
Creator: Katzenberger, Oscar

Vehicle-Wheel.

Description: Patent for a vehicle wheel with no extra small parts, a tightener that tightens the whole wheel and is easily reached, and constructed in such a manner that it may be easily taken apart and put back together for repair purposes.
Date: March 26, 1907
Creator: Hadley, William Swain

Type

Description: Patent for type. This inventions is for the body of type used in printing presses. Illustration included.
Date: November 24, 1903
Creator: Weeks, Frank W.

Interlocking-Bar Grating for Jails.

Description: Patent for gratings used in jails. "In these structures as ordinarily made upright and horizontal bars are provided which are located at right angles to each other, these bars being necessarily secured together at their points of intersection to prevent their being spread apart" (lines 11-16).
Date: November 25, 1902
Creator: Youngblood, David Franklin
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