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Penholder Attachment

Description: Patent for an attachment for pen holders which acts as an extra supply of ink. Illustrations included.
Date: September 12, 1911
Creator: Harmon, James W.
Partner: UNT Libraries Government Documents Department

Mucilage-Bottle.

Description: Patent for a mucilage-bottle that has a brush which stays in the bottle, and is held in place with a cork. A spring is in the neck, and is compressed when the cork is inserted. This mucilage-bottle will not get clogged with dried mucilage.
Date: January 12, 1897
Creator: Taylor, George Watson
Partner: UNT Libraries Government Documents Department

Headlight Control

Description: Patent for Headlight Control
Date: September 12, 1916
Creator: Hartman, Reuben. E
Partner: UNT Libraries Government Documents Department

Balanced Slide Valve.

Description: Patent for a new and improved balanced slide-valve. This design consists in a "Steam-chest, a valve sliding therein, a chamber on top of the steam-chest, and a diaphragm in the top of the chamber and secured by a cap or plate, in combination with a frame having a packing-box and gland, an adjustable threaded stem or bolt passing through the frame, and the double-link connection between the said stem and valve" (lines 90-97).
Date: October 12, 1886
Creator: Bettis, William Irvin
Partner: UNT Libraries Government Documents Department
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