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 196
DREDGES AND EXCAVATORS. 181 round pitch-wheels connected to the upper tumbler. If the buckets catch on solid rock, thefriction-gear slips until the undue strain is relieved. … Fill. 4.-Kobnitz rock-breakms dredge. While at work, the vessel is moved over the surface in a series of arcs, by independentwinch-motion arranged for swinging the vessel from side to side, pivoting on a steel moonng-pile, which goes down through the hull in the after part of the maciiine. A…
Mechanical engineering
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