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Labor Saving Soap
1849
Scientific American
MaClhlne "o r Itfpklng the (Jopper Typ e. i alily ; the type is struck or pu n ched a t th e lated by the admission of air at tbe top of the Ntw Jntltntiong. Improvements In Steam Bolle ... . Messrs. W. N. and Al i llzor Clark, of Ches ter, Ct., have taken lll t'asures to �ecure ap a ient, for an improveme nt made by them in steam boilers, which consists \D increasing the heating surface of the boiler invelSely by decreasing the quantity of water in the boiler but keeping up the same surface of
doi:10.1038/scientificamerican08111849-372f
fatcat:tnjxspb6frevhei3lpdv2rprwy