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Scientific American, Vol. 41, No. 11 (1879) (1879)

leaf 7

An illustration from Scientific American, Vol. 41, No. 11 (1879), 1879, leaf 7
, as | against the edge of the disk, B, by the weight, J, attached side pressure required to keep the coils of the belt in posi- indicated in dotted lines. It is thus capable of rapidly to a cord passing over the pulley, I. The carbon is in elec- tion on the pulleys amounts to nothing compared with… … over two hundred pounds. Durability and solidity are the important features of paved streets, and while hand power can only force the stone into the earth three inches, the punching 1 inch holes through 5-16 iron. An ingenious stop steam rammer sends them six inches with ease; thus making The…

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