The dyeing of textile fabrics . 71.—Pitts Woollen Yam Dyeing Machine. rods c, placed across the tank, and turned by hand, asdescribed on p. 105 for yarn-scouring. An excellent example of a macliine specially adaptedfor dyeing irooVen yarn is that of Messrs. Pitt Bros.,and illustrated in Fig. 71. The ^at, which is of theordinary kind, is provided with a light iron frame Aresting upon the edges of three of its sides and beneaththe ends of the rods of yarn. This frame can be movedup or down by means of the chains B, and thus the Chap. XII.] MACHINERY FOR WOOLLEN YARN. 281 whole of the wooden roll
The dyeing of textile fabrics . 71.—Pitts Woollen Yam Dyeing Machine. rods c, placed across the tank, and turned by hand, asdescribed on p. 105 for yarn-scouring. An excellent example of a macliine specially adaptedfor dyeing irooVen yarn is that of Messrs. Pitt Bros.,and illustrated in Fig. 71. The ^at, which is of theordinary kind, is provided with a light iron frame Aresting upon the edges of three of its sides and beneaththe ends of the rods of yarn. This frame can be movedup or down by means of the chains B, and thus the Chap. XII.] MACHINERY FOR WOOLLEN YARN. 281 whole of the wooden rollers holding the yarn can be im-mei-sed in or removed from the vat liquor the frame is lowered, the ends of the axes of tlierollers rest iii the sockets c fixed on each side of the turning of the hanks is effected by loose woodenblades, which are inserted within the loop of the hanks,and close to the supporting roller. The ends of these bladesproject and rest in a series of forks or notches fixed on. Fig. 72.—Hydro-extractor. horizontal rails d, situated on both sides of the vat. Bymeans of a complicated system of levers e, actuated by apair of cams, the rails D are moved both vertically andhorizontally in such a manner that a small circle is de-scribed by the wooden blades which they su))port. Eachblade is raised above the roller on which the yarn issuspended, then moves away from it, and then falls; thepoint of suspension of the yarn is thus being continuallyaltered, and the yarn is drawn intermittently across therollers. The movement of the yarn is indeed very similarto that which it receives when worked by hand, thedifference being simply one of degree and not of Machinery.—Woollen yarn is washed by 282 DYEING OF TEXTILE FABRICS. [Chap. XIL
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectdyesanddyeing, bookye
