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Improvement in Saw-Mills

Description: Patent for an improvement in saw mills, with illustration.
Date: February 9, 1875
Creator: Linder, Charles
Partner: UNT Libraries Government Documents Department

Improvement in Speed and Time Recorders.

Description: Patent for improvements in recording instruments to "document of all the movements of a locomotive while in charge of the engineer, to record any stoppages that may be made; the duration of such stoppages, and any backward motion of the locomotive at any point during the trip." (Lines 7-13) Illustration is included.
Date: September 9, 1879
Creator: Richardson, John D.
Partner: UNT Libraries Government Documents Department

Improvement in Cotton and Hay-Presses

Description: Patent for a new and useful improvement in cotton and hay-presses. It includes a description and an illustration.
Date: August 9, 1870
Creator: Stopple, Charles W.
Partner: UNT Libraries Government Documents Department

Improvement in Compositions for Filling Teeth.

Description: Patent for a new compound for use as a tooth filling as related to dentistry. Names all of the ingredients forming the compound and lists the necessary proportions of each ingredient.
Date: February 9, 1875
Creator: Erlenmeyer, Erwin
Partner: UNT Libraries Government Documents Department

Improvement in Cotton-Presses.

Description: Patent for improvement in cotton-presses that relates to a specific combination toggle arms connected to a platen with a ball-and-socket or other joint and sliding guide rods.
Date: November 9, 1875
Creator: Bearce, Larned S.
Partner: UNT Libraries Government Documents Department
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