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in subjects: "plows"  
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Plow.

Description: Patent for a new and improved plow. This design consists in "[t]he slide for shovel-plows, consisting of two members having enlargements at their ends, provided with radial notches, the upper member being provided with a longitudinal slot, and a pivot-pin inserted through the enlargements of the members" (lines 62-67).
Date: June 10, 1890
Creator: Mason, Thomas J.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Plow.

Description: Patent for a new and improved plow. This design consists in "the combination of the share having the keeper on the mold-board and the arm, the detachable point bearing against the outer side of the arm and having the tongue engaging the keeper, and the lever fulcrumed to the mold-board at a point between the keeper and landside, and having the short arm adapted to lap the joint between the point and mold-board and to engage the outer end of the tongue to lock the latter in the keeper" (lines 82… more
Date: June 10, 1890
Creator: Hyer, Robert Stewart
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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