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 802
should be heavy enough toenable several logs at a time to be hauled into the second story of a mill building. One very well made log-jacker has an endless chain engaging with a pitch wheel and ashaft whicli is driven by spur and pinion, the shaft bearing this latter being driven by V-frictions from… … Fig. 2.—Resawing machine. which it is desired to move the log, by a friction device hauling on a chain. The upperend of the beam next the log is armed with teeth which engage the logs. A gauge-roll for board-sawing machines consists of a vertical roll on a horizontal bracket,which slides along a…
Mechanical engineering
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