UNT Libraries Government Documents Department - 205 Matching Results

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Bookbinding

Description: This is a letter patent for the bookbinding invention as a means for holding books, pamphlets, catalogs, and other similar paper materials together. The purpose of this invention is to make it possible to place additional material inside the same covers, and with the original contents of a book without breaking or tearing the binding.
Date: June 22, 1911
Creator: Robinson, Edward K.
Item Type: Refine your search to only Patent

Check Controlled Apparatus

Description: Patent for a check controlled apparatus. This invention "is to provide a check controlled apparatus for a receptacle arranged to fasten the lid of the receptacle and including a key supported to be released by the key" (lines 12-16). Illustration included.
Date: February 22, 1910
Creator: Wilson, James A.
Item Type: Refine your search to only Patent

Clamp

Description: Patent for a clamp. This device is employed to use a hoisting line attached to well casing or tubing. Illustration included.
Date: November 22, 1910
Creator: Athey, Earl
Item Type: Refine your search to only Patent

Clothes-Pin

Description: Patent for new and useful improvement to clothes pins to automatically lock themselves against accidental disengagement from the clothes line.
Date: April 22, 1913
Creator: Ingersoll, Charles J.
Item Type: Refine your search to only Patent

Cotton-chopper.

Description: Patent for a cotton chopper. The text describes the construction of the machine and explains how it is different from current cotton choppers.
Date: April 22, 1913
Creator: Forrest, Bedford W.
Item Type: Refine your search to only Patent

Cotton-Sack Hanger.

Description: Patent for a hanger designed to easily attach and detach from a cotton sack without damaging the sack or the hands of a cotton picker. It is designed to be made of a single piece of material and may be used to hang the sack on a scale for weighing the contents.
Date: July 22, 1919
Creator: Hamrick, Walter
Item Type: Refine your search to only Patent
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