A supplement to Ures Dictionary of Arts, Manufactures, and Mines, : containing a clear exposition of their principles and practice. . ; the upper part c forming a heater for the wash, while the lower compartment d actsas a rectifier. The heater c, when filled up to the level of the cock m, contains the exactmeasure of wash for charging the still; the contents can be constantly agitated by therouser i. The still and heater being both charged, the vapor will at first be completelycondensed in passing through the worm r/, and flowing into d will close the aperture. Whenthe contents of o become so
A supplement to Ures Dictionary of Arts, Manufactures, and Mines, : containing a clear exposition of their principles and practice. . ; the upper part c forming a heater for the wash, while the lower compartment d actsas a rectifier. The heater c, when filled up to the level of the cock m, contains the exactmeasure of wash for charging the still; the contents can be constantly agitated by therouser i. The still and heater being both charged, the vapor will at first be completelycondensed in passing through the worm r/, and flowing into d will close the aperture. Whenthe contents of o become so hot that nomore condensation occurs, the vapor will escape bybubbling through the llfiuid in n, which latter rapidly becomes heated to the boiling point,and evolves vapors richer in alcohol, which in their turn are condensed in k. In this manner, by one operation, spirit containing about 60 per cent, of alcohol is ob-tained. Of the recent improvements on Dorns still, two only need be described:—Coffeys,which has in a great measure replaced all others in this country, and Derosnes, which isextensively employed in France. 4C0. Coireys Still far t^urpasses any of those before described. It was patented in , andhas ])roved nioi^t valuable to the distiller, since it yields the strongest spirit that can beobtained on tlie large scale. Its objects are twofold :—1st, to economize tlie heat as much as possible, by exposingthe liquid to a very extended heated surface; 2d, to cause the evaporation of the alcoholfrom the wash by passing a current of steam through it. The wash is pumped from the wash charger into the worm tube, which passes fromtop to bottom of the rectifier. In circulating through this tube its temperature is raised toa certain extent. Arrived at the last convolution of the tube in the rectifier, the washpasses by tlie tube ^r Ji in at the top of the analyzer. It falls and collects upon the topshelf until this overflows, whence it ialls on to the second shelf, an
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Keywords: ., bookcentury1800, bookdecade1860, bookpublishernewyo, bookyear1864
