Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics (1892)
Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 706
Fig. 2.—Cutaway disk. PULVERIZERS AND HARROWS. 677 All harrows of the rotating-disk class are subject to a considerable amount of side pres-sure on each disk, which accumulates at the rearward hanger, causing a severe friction there.For this hanger, the Keystone Manufacturing Co., of Sterling.…
Mechanical engineering
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