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Interchangeable Bottom for Jail Cell Walls

Description: Patent for an interchangeable bottom for jail cell walls. Illustrations included.
Date: May 3, 1910
Creator: Youngblood, David Franklin
Partner: UNT Libraries Government Documents Department

Lawn-Mower.

Description: Patent for a lawn mower that is easy to use and has long blades.
Date: May 2, 1911
Creator: Maldino, Mark
Partner: UNT Libraries Government Documents Department

Insect-Trap.

Description: Patent for a trap for insects such as those that feed upon crops including instructions and illustrations.
Date: May 30, 1911
Creator: Rea, George Thomas
Partner: UNT Libraries Government Documents Department

Vehicle Wheel.

Description: Patent for a vehicle wheel equipped with a substitute for the pneumatic tire. This wheel will have an inner and outer hub, spaced from each other and adapted to undergo relative motion, coiled springs being mounted radially upon the outer hub which serve to communicate rotation from one hub to the other.
Date: May 14, 1912
Creator: Wylie, Alfred R.
Partner: UNT Libraries Government Documents Department

Well-Boring Rod.

Description: Patent for a well boring rod in which a hollow rod or shaft is used as a rotary power transmission shaft. The invention has for its primary objects the provision of means for reinforcing or stiffening a well boring rod so that a lighter tube may be used than would otherwise be the case.
Date: May 21, 1918
Creator: Layne, Mahlon E.
Partner: UNT Libraries Government Documents Department

Transmission Mechanism.

Description: Patent for a transmission mechanism "in which a minimum number of parts is employed and the working thereof is uniform, steady, and without lost motion" (lines 16-18). Additional benefits are "simple in construction, thoroughly reliable and efficient in operation, and which is strong and durable and may be manufactured at small cost" (lines 21-24).
Date: May 21, 1918
Creator: Martinez, Norberto
Partner: UNT Libraries Government Documents Department

Watch Charm

Description: Patent for a watch charm. This invention is designed to be interchangeable ornament charms or badges. Illustration included.
Date: May 30, 1911
Creator: Simon, Arthur
Partner: UNT Libraries Government Documents Department

Watch Protector

Description: Patent for a watch casing that allows the watch face exposed. The protector can be clasped together and hung on a chain if desired.
Date: May 11, 1915
Creator: Kaak, Georgine
Partner: UNT Libraries Government Documents Department

Transmission-Chain.

Description: Patent for a transmission chain made of separate links. Some of the links have spring material to center the chain, increase flexibility, and protect the chain from objects thrown in the chain's path.
Date: May 30, 1916
Creator: Lynn, John
Partner: UNT Libraries Government Documents Department

Vending-Machine.

Description: Patent for improvements to vending machines especially ones used for vending drinks.
Date: May 18, 1915
Creator: Ogden, Carlton N.
Partner: UNT Libraries Government Documents Department

Ventilating-Fastener.

Description: Patent for an improved tuft fastening device that provides ventilation through cushion tufts to make cushions cooler to the touch, including illustrations.
Date: May 8, 1917
Creator: Davis, Don M. & Underwood, Thomas J.
Partner: UNT Libraries Government Documents Department

Vehicle-Wheel.

Description: Patent for a vehicle wheel "which embodies a flexible tread and radially arranged springs for absorbing shocks and cushioning the yielding action of the parts of said tread" (lines 9-13).
Date: May 19, 1914
Creator: Anderson, Lycurgus
Partner: UNT Libraries Government Documents Department

Vending-Machine

Description: Patent for a vending machine. Illustrations included.
Date: May 7, 1912
Creator: Marshall, Harry Everett
Partner: UNT Libraries Government Documents Department

Pump

Description: Patent for an improved pump for oil or water wells after completion. It is designed to remove sand and slush and keep it out of the valve cage and seat.
Date: May 8, 1917
Creator: Kutschbach, August E.
Partner: UNT Libraries Government Documents Department

Mill for Grinding or Crushing Cotton-Seed or the Like.

Description: Patent for improvements to the grinding or crushing of materials in mills by eliminating the hammering action by the use of supported ball bearings. This decreases the amount of power needed to operate the mill and includes illustrations.
Date: May 1, 1917
Creator: Nolen, Robert Rufus
Partner: UNT Libraries Government Documents Department

Lamp-Chimney Holder.

Description: Patent for "certain new and useful improvements in Lamp-Chimney Holders" (lines 5-7) which produces an efficient means for adjusting the chimney engaging arms to accommodate different sizes of lamp chimneys.
Date: May 12, 1914
Creator: Burgin, Daniel W.
Partner: UNT Libraries Government Documents Department

Propellor Pitchometer.

Description: Patent for instruments which measure the pitch of propeller blades.
Date: May 18, 1915
Creator: Frank, Lawrence
Partner: UNT Libraries Government Documents Department

Threshold

Description: Patent for an improved threshold to fit the bottom of a door more properly to "prevent the entrance of dust, wind, and rain" (lines 16-17).
Date: May 11, 1915
Creator: Krause, Ernest
Partner: UNT Libraries Government Documents Department

Lamp Adjusting Pedal Mechanism

Description: Patent for improvements for lamp operating pedals for automobiles.
Date: May 10, 1915
Creator: Kitching, David C.
Partner: UNT Libraries Government Documents Department

Switch.

Description: Patent for a switch for electrically operated elevator doors or gates that ensures their proper closing before the car travels through the shaft.
Date: May 18, 1915
Creator: Pitts, Hood & Covert, Frank M.
Partner: UNT Libraries Government Documents Department

Method of Treating Ores.

Description: Patent for "new and useful Improvements in methods of Treating Ores, of which the following is a specification. The present invention relates to a method of treating ores carrying gold and silver values in any form amenable to cyanid treatment or flotation" (lines 6-12).
Date: May 8, 1917
Creator: Friberger, Harry Louis
Partner: UNT Libraries Government Documents Department

Ladder.

Description: Patent for a ladder that will allow its prop legs to be slided longitudinally of the main ladder legs to form an extension ladder.
Date: May 23, 1912
Creator: Vierheller, Paul E.
Partner: UNT Libraries Government Documents Department

Stalk Cutter

Description: Patent for a stalk cutter. Illustration included.
Date: May 10, 1910
Creator: Michalka, Joseph & Michalka, Frank A.
Partner: UNT Libraries Government Documents Department
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