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Scientific American, Vol. 14, No. 15 (April 1866) (1866)

leaf 15

An illustration from Scientific American, Vol. 14, No. 15 (April 1866), 1866, leaf 15
er in- to the bottom of the chamber. Here there is a spiral formation address E. E. Gard, No. 102 Lake street, blade, D, whose office is to force the clay into the Chicago, III. [See advertisement on another page.] mold boxes, which are shown at E. These are ranged in rows about the circumference… … TERMS. " It is a general truth that friction developes elec- qlay enters the mold the blade moves against it and I Per annum $3 00 tricity, and most workmen know that a macine belt crowds it down compactly in the corners. As the Six month?. I SO at high speed by its friction with the air is highly…

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