A supplement to Ures Dictionary of Arts, Manufactures, and Mines, : containing a clear exposition of their principles and practice. . to the axle, the sliding pistons bb are carried with sliding pistons are furnished at their ends with cylindrical pins which ]irojeet and litinto cylindrical holes bored in the guide blocks c c, which fit into annular recesses i) in theend plates, and keep the slides in contact with the cylinder. The slides are fitted with me-tailic packing e, to allow of wear. The axle continuing to revolve, as one slide reaches theoutlet and ceases to exhaust, the oth
A supplement to Ures Dictionary of Arts, Manufactures, and Mines, : containing a clear exposition of their principles and practice. . to the axle, the sliding pistons bb are carried with sliding pistons are furnished at their ends with cylindrical pins which ]irojeet and litinto cylindrical holes bored in the guide blocks c c, which fit into annular recesses i) in theend plates, and keep the slides in contact with the cylinder. The slides are fitted with me-tailic packing e, to allow of wear. The axle continuing to revolve, as one slide reaches theoutlet and ceases to exhaust, the other comes into action, and the exhaustion is the pressure upon the retorts (which is indicated by a gauge) is reduced to about halfan inch of water. In order to judge of the degree of purity of the gas after its transmission through thelime machine, a slender siphon tube provided with a stopcock may have the one end in- 384 COAL-GAS. serted in its cover, and the other dipped into a vessel containing a solution of acetate oflead. Whenever the solution has been rendered turbid by the precipitation of black sul- 185. phuret of lead, it should be renewed. The saturated and fetid milk of lime is evaporatedin oblong cast-iron troughs placed in the ash-pit of the furnaces, and the dried lime is partlyemployed for luting the apparatus, and partly disposed of for a mortar or manure. III. Apparatus used in the Pcrification of Coal-Gas. Fiqs. 186 and 187 represent the form of a dry purifier, combined with a washer orscrubber, lately patented by Mr. Lees of Manchester. Fig. 186 is an elevation, partly insection of this apparatus, and fy. 187 is another elevation, also partly in section, of thesame, a is a hopper, into which the dry lime is fed; b is a damper, or sliding door, bywhich the supply of lime can be regulated ; c is a .iheet metal tube, containing the worm orscrew d, the axis of which is supported at one end by the stuffing-box f, and at the otherend by the bearing
Size: 1505px × 1659px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1860, bookpublishernewyo, bookyear1864
