Share.
（Husbandry.) a. The sharp blade at the front of a plow, and which cuts the bottom of the furrow and raises the soil. The duty of the colter is to cut vertically to detach the furrow-slice from the land, and the duty of the mold-board is to lay it over in required order. The share is the main, effective agent, and the others subsidiary. Sometimes, as in shovel-plows, [2134] the whole working portion is a share which cuts, lifts, and throws the furrow-slice. Ransome, of Ipswich, England, patented the castiron share in 1785. He patented the case-hardening of the upper edge in 1803, so that the share became self-sharpening. b. The blade in a seeding-machine or drill, which opens the ground for the reception of the seed.
