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Knight's Mechanical Encyclopedia (ed. Knight), S. (search)
ne in which the flanges make a shear-cut past each other. IV. Cutting-knives upon a cylinder on a horizontal axis in front of the throat, and cutting toward the opening. Spiral-knife straw-cutter. Salmon of Woburn, England, about 70 years since, introduced the oblique knife attached, cylinder fashion, between two wheels and cutting toward the throat of the straw-box; revolving in the same plane of motion as the straw is moved. The feature is also seen in United States patents, Eastman, January 29, 1822; Denson, May 2, 1835. In Fig. 5968, the cutters extend diagonally along the cylinder, being secured at their ends to the rims of the cylinderheads. A sheet-iron band forms the periphery of the cylinder. In Fig. 5969, the hay, after being cut, is crushed between rollers, and winnowed to expel the dust. V. Feed-grinders. Fig. 5970 has a series of circular cutters C on a horizontal shaft. The knives work against an apron J, and the spaces between the knives are