UNT Libraries Government Documents Department - 8 Matching Results

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Cattle-Guard

Description: Patent for an improved cattle guard with two parts that is adapted to specifically fit either inside the railroad tracks or alongside them.
Date: October 28, 1919
Creator: Fisher, Thomas M.
Item Type: Refine your search to only Patent

Copy Holder

Description: Patent for an improved copy holder design that is "adapted for holding stenographers' notebooks and other copies and equipped with an efficient line guide, capable of easy and rapid operation to drop the line indicating means from one line to another with perfect accuracy" (lines 14-19), including illustrations.
Date: April 28, 1914
Creator: Wrede, Albin C.
Item Type: Refine your search to only Patent

Improvement in Cotton-Scrapers.

Description: Patent for improvement in cotton-scrapers by using the combination of horizontal bars, cams, and a beam which consist of ploughs to construct the cotton-scraper; when the “cams revolve and give a lateral and forward motion to the horizontal bars, the beam and the ploughs. As it works backward and forward, the ploughs each describe a zigzag line which cross and leave a hill in diamond-shape undisturbed.” (Lines 21-24) Illustration is included.
Date: April 28, 1868
Creator: Kidd, I. J.
Item Type: Refine your search to only Patent

Saw Gummer.

Description: Patent for a new and improved saw gummer. This design "is to improve the action and prolong the usefulness of the bit and dies, and to prevent the clippings from interfering with the operation of the machine" (lines 26-29).
Date: July 28, 1885
Creator: Clopton, John Benjamin
Item Type: Refine your search to only Patent
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