. Journal. ular form, either circular or of anj other shape, in order to enable the steam to rise on the inner as well as the outer edges of the caps, after forcing its way through the liquid on the trays, thereby considerably increasing the effective working surfaces within the casing. -B. Nov. sn, iso:!.| THE JOURNAL OF THE SOCEETT OP CHEMICAL INDUSTRY. 895 Improvements in Apparatus for Separating from Liquorsthe Scum or Matter which rises to the Surface duringBoiling or Heating. A. Chapman, Liverpool. 19,364, November 9, 1891. The object of this invention is to secure the skimmingw
. Journal. ular form, either circular or of anj other shape, in order to enable the steam to rise on the inner as well as the outer edges of the caps, after forcing its way through the liquid on the trays, thereby considerably increasing the effective working surfaces within the casing. -B. Nov. sn, iso:!.| THE JOURNAL OF THE SOCEETT OP CHEMICAL INDUSTRY. 895 Improvements in Apparatus for Separating from Liquorsthe Scum or Matter which rises to the Surface duringBoiling or Heating. A. Chapman, Liverpool. 19,364, November 9, 1891. The object of this invention is to secure the skimmingwithout loss of boiling liquids, more particularly ofsaccharine solutions, by means of the interposition of aBtrainer and a body of quiescent liquid between the scum andthe boiling liquid. The inventor endeavours to utilise thefact that when liquids are boiled the scum or fecnlencies retreat from the hotter to the colder parts of the vessel, oneof the arrangements being shown in the Apparatus fob Separating the SctM from Liquidsduring Boiling. A is the boiling vessel, W the heating steam coil, B apartition reaching down within a short distance of thebottom of the vessel, and some distance above the liquidwhen not boiling. From the top edge a cover plate Cextends to another partition D in the skimming pan,reaching down to near the bottom ot that pan. Thetrainer F lies across the pan near the upper part of thepartition, and the side G of the pan near the boiling vesselforms a ledge very little higher than the level of thestrainer F. As the liquor in A boils, the froth and scum overflowthe partition B on to the strainer F, where the scum isretained, and the purified liquor, becoming nearly quiescent,at E, returns over the ledge G for further boiling.—B. Improvements in Thermostats or Instruments for Regulating Temperatures. A. Shiels. Glasgow. Eng. Pat. 20,368,November 2-1, 1891. These improvements relate to the regulation of the steamvalves of the refr
Size: 1880px × 1328px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1880, booksubjectchemist, bookyear1882
