UNT Libraries Government Documents Department - 48 Matching Results

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Clinometer

Description: Patent for a clinometer. This invention is designed to measure the grades and angles of inclination of structures and objects of various descriptions. Illustration included.
Date: May 19, 1908
Creator: Keith, John David & Faulkner, Walter Edgar
Item Type: Refine your search to only Patent

Combined Rubber Dam and Tooth Backing Punch

Description: Patent for a combined rubber dam and tooth-backing punch. "This invention relates to new and useful improvement in dental instruments and more particularly it has references to a punch for forming holes accurately in the backing which is used on teeth in construction of bridges, plates, and cognate work" (line 12-17). Illustration included.
Date: May 19, 1908
Creator: Bell, Harry M.
Item Type: Refine your search to only Patent

Cotton Gin

Description: Patent for a cotton gin. This is an improvement over previous gins. The invention uses air blasting methods and dispenses with brush drums. Illustration included.
Date: May 12, 1908
Creator: Lumpkin, Robert B.
Item Type: Refine your search to only Patent

Hay Press

Description: Patent for a hay press. This invention includes a reciprocating plunger with plunger heads and designed to work in separate compressing chambers. Illustrations included.
Date: May 19, 1908
Creator: Biela, Valentine
Item Type: Refine your search to only Patent
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