. A dictionary of arts, manufactures and mines : containing a clear exposition of their principles and practice. Pterocarpus santalinus,the Pterocarpus Draco, and the Calamus Rotang. Dragons blood is used chiefly for tlngeing spirit and turpentine varnishes, forpreparing gold lacker, for tooth tinctures and powders, for staining marble, &c. Accord-ing to Herbenger, it consists of 907 parts of red resin, 2 of fat oil, 3 of benzoic acid,1*6 of oxalate, and 3-7 of phosphate of lime. DRUGGET is a coarse, but rather slight, woollen fabric, used for covering carpets,and as an article of clothing by
. A dictionary of arts, manufactures and mines : containing a clear exposition of their principles and practice. Pterocarpus santalinus,the Pterocarpus Draco, and the Calamus Rotang. Dragons blood is used chiefly for tlngeing spirit and turpentine varnishes, forpreparing gold lacker, for tooth tinctures and powders, for staining marble, &c. Accord-ing to Herbenger, it consists of 907 parts of red resin, 2 of fat oil, 3 of benzoic acid,1*6 of oxalate, and 3-7 of phosphate of lime. DRUGGET is a coarse, but rather slight, woollen fabric, used for covering carpets,and as an article of clothing by females of the poorer classes. It is now-a-days nearlysuperseded by coarse cotton goods. DRYING HOUSE. An apartment fitted up in a peculiar manner for drying calicoes,and other textile fabrics. Mr. Southworth, of Sharpies, a Lancashire bleacher, ob-tained a patent, in 1823, for the following ingenious arrangement, which has beensince generally adopted, with certain modifications, in most of our extensive bleachingand printing works. Fig. 363 is a section of the drying-house, where a is a furnace and 363. boiler for the purpose of generating steam ; it is furnished with a salety valve in thetube b, at top, and from this tube the steam main c passes down to the floor of the base-ment story. From this main, a series of steam-pipes, as d d, extend over the surfaceof the floor, and from them heat is intended to be diflused for the purpose of warming thedrying-house. AhMig the middle of the building a strong beam of timber e e, extends, and is sup-ported by cast-iron pillars; from this beam, to bearings on the side walls, a series of railsare carried in a cross direction, over which rails the wet cloth is to be hung in folds, andthe steam or evaporation emitted in drying is allowed to escape through apertures or ven-tilators in the roof. The mode in which the cloth is delivered on to the rails, on either side of the beam,•will be best understood by reference to the delivering carri
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Keywords: ., bookcentury1800, bookdecade1840, booksubje, booksubjecttechnology
