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 138
ve into the hutcii below,drawn through a proper … the bedding andwhence it can begate. Automatic Slate-Pickers.—These dependfor their action upon the fact that, while thecoal generally breaks into cubical masses, thepieces of slate of the same length and widthare of very much less thickness. Hence, ifa quantity of slate and coal which has…
Mechanical engineering
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