. A practical handbook of dyeing and calico-printing. With eleven page-plates, forty-seven specimens of dyed and printed fabrics, and thirty-eight woodcuts . PRINTING. 557 mandrel. The pressure cylinder or bowl, c, rests with its gudgeons in bushes,which can be shifted up and down in slots of the side cheeks, a. Thesebushes are suspended from powerful screws, F, which turn in brass nuts madefast to the frame, a. These screws counteract the upward pressure of thetwo lowest rollers, and enable the bowl to be lifted out of the way of therollers when they have to be removed, o g are sliding pieces
. A practical handbook of dyeing and calico-printing. With eleven page-plates, forty-seven specimens of dyed and printed fabrics, and thirty-eight woodcuts . PRINTING. 557 mandrel. The pressure cylinder or bowl, c, rests with its gudgeons in bushes,which can be shifted up and down in slots of the side cheeks, a. Thesebushes are suspended from powerful screws, F, which turn in brass nuts madefast to the frame, a. These screws counteract the upward pressure of thetwo lowest rollers, and enable the bowl to be lifted out of the way of therollers when they have to be removed, o g are sliding pieces, moving in armsof the framework by means of screws, h h. These sliding pieces carry thebearings of the mandrels, and to them are also attached the colour troughsand doctors. The screws, h, work in female screws, i, forming part of asystem of jointed levers, K. These levers serve to give an additional elasticpressure to the rollers, D. There are four pairs of levers, each bearing upon Fig. one mandrel. The two highest rollers are pressed against the cylinder by thecompound levers, k\ which have attachments to the arms of the frameworkat/, and to the inside of the main framework at g, and m as fulcrums ; thescrews, h h, working in female screws, 1 1, as in the other set of convenience in removing the rollers, colour boxes, &c, these levers arefitted with a hinged piece, n, in a socket, 0, on the top of which work thescrews, / /, which by means of the female screw in the lever, k k, serve furtherto regulate the pressure; the lever, k k, is shown as when the machine isprinting, but when the rollers are to be removed the lever is lifted by thehandle and the hinged piece, N, pulled over, the lever with its burden being Hfr-iii fiws ? 58 DYEING AND CALICO PRINTING. I then lowered down. The weighting of these levers, which are partly outsidethe machine, is seen in Figs. 27 and 28. l are weights, q colour boxes, theirbottoms and sides made of sheet-copper and t
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectdyesanddyeing, bookye
