. Journal. lue, which it descends andthen passes through openings e3 e3 into the retort chamber,additional supplies of air being provided through smallerinlets e4 placed just before the first row of retorts. Theair supply to the retort chambers enters through inletsopening into the vertical spaces a a. The air inlet deviceis shown in Fig. 3, where F is the air-inlet pipe receiving airfrom the main F> (see Fig. 2). The pipe F (Fig. 3)is provided with openings in its inner side having flanges /,and similar openings in its outer side closed by a slidingdoor /. The opening in the flange / opens
. Journal. lue, which it descends andthen passes through openings e3 e3 into the retort chamber,additional supplies of air being provided through smallerinlets e4 placed just before the first row of retorts. Theair supply to the retort chambers enters through inletsopening into the vertical spaces a a. The air inlet deviceis shown in Fig. 3, where F is the air-inlet pipe receiving airfrom the main F> (see Fig. 2). The pipe F (Fig. 3)is provided with openings in its inner side having flanges /,and similar openings in its outer side closed by a slidingdoor /. The opening in the flange / opens into a shortburnt fire-clay tube G, which is fixed by means of fire-clay ina hole I3 in the fire-brick wall of the retort chamber. Thistube G projects a short distance into the retort chamber ; itis closed at the end g, but has a side opening g*. Theamount of air admitted is regulated by a removablesheet-iron stopper G1 with a slot g2, which is insertedinto the flange / at its junction with pipe F.—A. Fiq. 2. Nov. ;io. 1605.] J01 i:n m. ami i\ i i\t i: i: Oi \ 1177 Pyrrhotite; Method of Separating - fr<and Oangue. J. N. Judson, Soutb Stafford, V\ 801,879, Oct. 17. containing non-magnetic or lightly magni varieties of pyrrhoite, as- iated with chalcopyrite nnd gangue mineral . ar hi ited to such ad bba the particles of pyrrhotite acquire a Rurfaci rice or film of rainbow colours,* and become more magnetic thanthe chalcopyrite, without any considerable loss of pyrrhotite is then separated from thi ore by magnetic attraction.—A. S. Furnace. J. A. Herrick, Philadelphia. Pat. (il\ Oct. 17. furnace contains a heating chamber; a number ofregenerators at each end, arranged transversely tochamber: a number of separate gas passages connectedwith each end of the heating chamber and extendingdownwardly between tho regenerators; a separate slagpocket connected with the bottom of each passage andseparated from the connection
Size: 1951px × 1280px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1880, booksubjectchemist, bookyear1882
