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Improvement in Gang-Plows.

Description: Patent for "constructing and arranging a gang or series of plows in one frame that they may have an adjustment on the supporting-runners, and a means of self-adjustment vertically, so that they may be set for furrow-slices of any given depth, and any one of the series may give way to an undue resistance in the line of the furrow without disturbing any other of the plows." (Lines 20-28) Includes instructions and illustrations.
Date: November 9, 1869
Creator: Hall, Thomas J.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Improvement in Gang-Plows.

Description: Patent for "a gang-plow, which is so arranged that the beams can be adjusted sideways and up and down at will, and can be permanently secured in any desired position in either movement." (Lines 17-20) Includes instructions and illustrations.
Date: November 30, 1869
Creator: Hall, Thomas J.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Coffee-Roaster.

Description: Patent for a coffee roaster that intends to "supply a ready and cheap means of effectually stirring the grains of coffee while being roasted in any convenient and suitable vessel...(lines 6-9). The patent includes instructions and an illustration.
Date: November 23, 1869
Creator: Hall, Thomas J.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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