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Scientific American, Vol. 52, No. 17 (1885) (1885)

leaf 4

An illustration from Scientific American, Vol. 52, No. 17 (1885), 1885, leaf 4
ROWING APPARATUS, sired distance from the female die. On one side of the off down the drain, and the thicker portion at the bot- tom is afterward run into a filter bed of sand and The main object of the invention herewith illustrated lower prong of the block a gauge plate is held, and gravel,… … the stud and pulls the sliding plane; and each wing is made with a side extension which bar upward, this in turn pull- ing up the maledie. The U- bears against the outer face shaped frame prevents the plate from rising with the of the other. The stud prevents the folding of the filters, leaving the…

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