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Scientific American, Vol. 24, No. 9 (1871) (1871)

leaf 7

An illustration from Scientific American, Vol. 24, No. 9 (1871), 1871, leaf 7
steam for the exhibition of 1871. dairies on their estates, fitted up with massive marble tables or no change has taken place in the manner of constructing The boiler was first exhibited at the Fair referred to, and and milk coolers, and with a constant stream of water pass- cultivators. It is a… … granted on cultiva- steam, anddry steam THE ALLEN STEAM BOILER. tors (and patents on only can issue from these machines generally embrace a long string of claims) an object of profit, and they seldom: unite all the conveni- the boiler. Provision is, however, made for preventing ac- are what are…

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