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Animated Sign

Description: Patent for a display apparatus to be implemented as animated advertising signs which successively display different images by controlling the timing of changes in the colors of light used to flood the front and to backlight the display surfaces. The images are created in such a way that certain elements created in certain colors become absorbed or are made invisible when illuminated by certain colors of light. An apparatus controls the cyclical changes of the colored lights used by the sign.
Date: September 5, 1922
Creator: Craig, Richard M.
Partner: UNT Libraries Government Documents Department

Band-Saw

Description: Patent for improving band-saws for lumber "which can be inexpensively produced, which will not readily crack or otherwise deteriorate in use" (lines 15-18) by "reinforc[ing] the gullets of the teeth that the tendency for cracks to form at this point will be reduced to a minimum" (lines 33-35).
Date: September 28, 1920
Creator: McCormick, Merton H.
Partner: UNT Libraries Government Documents Department

Article Holder or Stand.

Description: Patent for a device that conveniently and readily supports books, photographs, picture cards, and other similar articles. The new design is formed from a single strand of wire, and is specifically adapted for holding books in an open position and allowing the pages to be turned as needed.
Date: February 28, 1922
Creator: Boyette, Oren K.
Partner: UNT Libraries Government Documents Department

Automatic lock.

Description: Patent for a gate lock that automatically locks.
Date: March 24, 1924
Creator: Parker, Robert N. & Smith, Henry A.
Partner: UNT Libraries Government Documents Department

Automobile Ornament.

Description: Patent for a new automobile ornament with improvements in fewer, sturdier parts and the ability to be visible at night with lamp socket and bulb attachments. Includes illustrations.
Date: December 13, 1921
Creator: Bower, James R.
Partner: UNT Libraries Government Documents Department

Cotton-Cleaning Apparatus.

Description: Patent for new improvements in a cotton cleaning apparatus, designed to attach to an unloading device and clean the cotton before passing through a drum separator. Includes illustrations.
Date: February 21, 1920
Creator: Williams, French B. & Adams, Benjamin F.
Partner: UNT Libraries Government Documents Department
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