two-wheel tandem vibratory rollers Mining Engineering in ...
Perseus Digital Library. A toothed or binding wheel which carries the plank into the planing-machine (a, Fig. 1928); or a feed for gate-saws (c, Fig. 1928), in which a reciprocating arm is provided with a dog to engage the rim of a wheel on the axis of the roller beneath the log-carriage, and so advance the log to the saw a graduated amount at each rise of the saw-gate.
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