A minor drawback of this system is
that it involves the presence of a fold up the middle of the piece. On
account of these drawbacks it has long been understood to be desirable
to expedite the process, and also to dispense with the press papers.
This is the main purpose of the machine we now illustrate in section, in
which the pressing is done continuously by what may be termed a species
of ironing. The machine consists of a central hollow cylinder, C,
three-quarters of the circumference of which is covered by the hollow
boxes, M, heated by steam through the pipes shown, and which are
mounted upon the levers, BB', whose fulcra are at bb. By means of the
hand-wheel, T, and worm-wheel, n, which closes or opens the levers, BB',
the pressure of the boxes upon the central roller may be adjusted at
will, the spring-bolt, F, allowing a certain amount of yield. The faces
of the press-boxes, MM, are covered by a curved sheet of German silver
attached to the point, Y. This sheet takes the place of the press papers
in the ordinary process. The course of the cloth through the machine is
as follows, and is shown by the arrows: It is placed on the bottom board
in front, and in its travel it passes over the rails, O, after which it
is operated on by the brush, Z, leaving which it is conveyed over the
rails, V and I, the rollers, K and P, and thence between the pressing
roller, C, and the German silver press plate covering the heated boxes,
M.
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