UNT Libraries Government Documents Department - 31 Matching Results

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Improvement in Railway-Gates.

Description: Patent for "automatically operating slide-gates which are operated by pressure on treadles, and are suitable for use either as farm-gates or railroad-gates." (Lines 15-18) Includes instructions and illustrations.
Date: May 28, 1878
Creator: McCaffrey, James M. & Larkin, James
Item Type: Refine your search to only Patent

Improvement in Locomotive Earth-Excavators.

Description: Patent for "an earth-excavator, principally for use in making the road-beds for railroads, which shall not only do its work continuously, but which shall be equally efficient in throwing up an embankment or in making a deep cut." (Lines 8-12) Includes instructions and illustrations.
Date: December 28, 1875
Creator: Hawley, Abel
Item Type: Refine your search to only Patent

Improvement in Fire-Escapes.

Description: Patent for improving fire-escapes and provides a portable instrument that "may be used for letting persons directly down from buildings, or for carrying them from the upper stories of buildings to others buildings at a distance" (lines 9-12).
Date: August 28, 1877
Creator: Staples, George S.
Item Type: Refine your search to only Patent

Improvement in Plows.

Description: Patent for a new and improved turn-plow which "consists in several features of improvement, by which the preparation and tillage of soil may be done at less the usual expense, and more than the usual convenience to the farmer." (lines 13-18) including instructions and illustrations.
Date: July 28, 1874
Creator: White, Moses F. & Blankenship, Augustus J.
Item Type: Refine your search to only Patent
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