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February 24, 1863
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The principal part of my invention has for its object the employment of cranks for the purpose of operating the heddles of looms, and also the drop-boxes of looms for weaving checks and figured goods, in order to avail myself of the advantages resulting from the employment of the crank as compared with the cam, and thereby to run the loom with greater rapidity and with a smaller expenditure of power than has heretofore been practicable; and my invention consists in the employment of cranks and toothed crank-wheels, operating in connection with revolving lifter and depresser wheels, and so arranged that the cranks may be turned to either the highest or lowest point of their revolution for the purpose of raising or lowering the heddles or the drop-box"
Loom, patent, textiles, L.J. Knowles, Lucius J. Knowles, heddles
Knowles, Lucius J., "Impromvement in Fancy-Looms" (1863). WPI Patents Collection. 8.