Van Nostrand's eclectic engineering magazine (1869)
[New York : D. Van Nostrand] · leaf 363
ied back into the schist. To obtain movable, and dips 3 to 4 in., removing a this pulsating current of water Mr. Meynier layer consisting of an intimate mixture obtains, by the action of a forcing pump, of coal and schists of very variable per- which draws the water from a lower re- centage of ash.… … lows the slinie which accumulates there to it actsJupon the coal through a sieve or be dropped into cars moving on rails, in a perforated plate. The first machine made, gallery running through the masonry. in 1852, consisted of a vertical pumping The sieve is made of perforated metallic cylinder…
Engineering
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