. A dictionary of arts, manufactures and mines : containing a clear exposition of their principles and practice. BLEACHING. 145. which the apparatus is worked, first by the water-wheel or steam-engine, and then by itsintrinsic operation, puts it completely out of the power of servants to slight the work;not to speak of the great saving of alkali, which, in many cases, has been found toamount to 25 per cent. A simple modification of the bowking apparatus is shown in figs. 124, 125, 126 ; the first being a vertical section, thesecond, a horizonlal section in theline X of the first. It consists o
. A dictionary of arts, manufactures and mines : containing a clear exposition of their principles and practice. BLEACHING. 145. which the apparatus is worked, first by the water-wheel or steam-engine, and then by itsintrinsic operation, puts it completely out of the power of servants to slight the work;not to speak of the great saving of alkali, which, in many cases, has been found toamount to 25 per cent. A simple modification of the bowking apparatus is shown in figs. 124, 125, 126 ; the first being a vertical section, thesecond, a horizonlal section in theline X of the first. It consists oitwo parts: the upper wide part,a a, serves for the reception of thegoods, and the lower or pot, b, forholding the ley; c c is an irongrating, shown apart in fig. grating has numerous squareapertures in the middle of thedisc, to which the rising pipe d isscrewed fast. The upper cylinderis formed of cast iron, or of sheetiron well riveted at the edges ; orsometimes of wood, this beingsecured at its under edge into agroove in the top edge of the ley-pot. The mouth of the cylinderis constructed usually of sheetiron, e
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Keywords: ., bookcentury1800, bookdecade1840, booksubje, booksubjecttechnology
