UNT Libraries Government Documents Department - 9 Matching Results

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Improvement in Rifle-Barrels.

Description: Patent for a "new and useful improvement in firearms" (lines 4-5), including instructions and illustrations. The invention provides "a gun-barrel with a number of cutters or plows for grooving the ball, said cutters or plows to correspond with with the number of guides or ribs which the gun is formed" (lines 20-25).
Date: December 11, 1877
Creator: Littlejohn, William
Item Type: Refine your search to only Patent

Plow.

Description: Patent for a new and improved plow. This design "consists in the point made with a land-side, fitting into a rabbet in the land-side of the standard, and made thicker and deeper than said rabbet, so as to project beyond and below said land-side to receive the wear" (para. 5).
Date: December 11, 1877
Creator: Dawson, William Wyatt
Item Type: Refine your search to only Patent
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