Journal - Franklin Institute of the State of Pennsylvania (1826)
Franklin Institute, Philadelphia, Franklin Institute (Philadelphia, Pa.) · [Philadelphia : Franklin Institute] · leaf 226
^ a, 5, and c, and even d^ should be of thesame size; yet f?, which supports the followingrope, may be made smaller without damage. This arrangement must be borne in mind whenever the sourceof power is located in the cellar, and we want to carry it to theupper story and distribute it horizontally.… … Artificial Porphyry from Iron Slags.—At the iron worksof Aulnoye, in Belgium, the slag is utilized by casting it into slabsfor pavements, garden rollers and other things. Paper is made by a company in Norfolk, Va., from the fibresof the reed cane, by discharging the cane from a tube or gun bysteam,…
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