. Journal. 11 DF (r\\. m4-^ i Automatic Extractor. The automatic extractor consists of a wooden digestorCC of about 5 cubic metres (176-6 cub. ft.) capacity,with a chamber A underneath it and communicating with itby means of the tube e, which descends to within 3 cms.(1*8 in.) of the bottom of A, and has a mushroomsprinkler h fixed on to the top end. The copper is con-nected with a vat B of about 3 cubic metres (106 cub. ft.)capacity, and with another vessel T. The siphon S allowsof the drawing off of the liquid in the copper into thechamber A. The doors P and P are hermetically sealed,and are
. Journal. 11 DF (r\\. m4-^ i Automatic Extractor. The automatic extractor consists of a wooden digestorCC of about 5 cubic metres (176-6 cub. ft.) capacity,with a chamber A underneath it and communicating with itby means of the tube e, which descends to within 3 cms.(1*8 in.) of the bottom of A, and has a mushroomsprinkler h fixed on to the top end. The copper is con-nected with a vat B of about 3 cubic metres (106 cub. ft.)capacity, and with another vessel T. The siphon S allowsof the drawing off of the liquid in the copper into thechamber A. The doors P and P are hermetically sealed,and are opened only when fresh tan is to be inserted orspent tan removed. The tube m m, pierced with holes,distributes water from the pipe p. 1,000 kilos. (1 ton) of tan are introduced through thedoor P, which is then screwed down ; water is allowed toflow in through m m until the tan has absorbed as much asit will and the water stands at the level of the top of thesiphon S. The valve S allows of the escape of air duringthe i
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectchemist, bookyear1882
