Apparatus for Pressing and Steaming Woven Fabrics.
Year: 1891

page_text: Date of Application, 28th May, 1891-Accepted, 4th July, 1891
Apparatus for Pressing and Steaming Woven Fabrics.
1, LUDOLF FROTSCHER of Gahlerstrasse, Zittau, Saxony, Works Director,
do hereby declare the nature of this invention and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement :-
In the accompanying Figs. 1 and 2 are respectively a sectional side view and a
part cross section of the press of this invention.
a is a steam jacketted steam cylinder. b, c, are two perforated hollow cylinders
or tubes which may be slid the one over the other and both are carried in the fixed
end cover d. The inner perforated cylinder may be turned on its axis from the
outside of the press by means of lever e. Cylinder c is closed at one end by part f.
The other end cover is designed to be readily fixed in its place and taken off.
It has a stuffing box through which a screw spindle i may be worked.
C
The press is worked by removing cover g, withdrawing cylinder c, winding
tightly on this latter in the position shewn by the dotted lines the fabric to be
treated so that all the perforations are covered by it, replacing cylinder c by
sliding it over cylinder b, replacing cover and then by screw spindle i pressing
cylinder forward towards cover making a tight joint between the two parts and
bringing the perforations of the two cylinders into such relative positions that the
passage from the outside of c to the interior of may be either opened or shut
by operating lever e. The steam cylinder a having been previously heated
from its steam jacket, fresh steam is supplied as required to the interior of the
same through inlet at a reduced pressure suitable to the kind of fabric under
treatment. This steam, dried and superheated by the hot inner surface of
steam cylinder a heated from the steam jacket supplied with steam of a higher
pressure, presses the fabric against cylinder c and thereby produces a result
similar to that of the hydraulic press.
After a suitable interval the cylinder is turned by lever e to provide a
clear passage through the perforations of both cylinders b, c, the steam will
then in a short time say in about three minutes, but according to the kind of
fabric treated, escape through opening b¹, this being the only means of escape
provided.
The operations of pressing and steaming may obviously be carried on the
reverse way to that described or each of the operations may be carried out
singly by itself. I have found that the result produced on dressed, undressed
and previously pressed fabrics is more perfect than that produced by other
apparatus hitherto in use.
The apparatus is provided with the necessary fittings such as reducing valve m.
stop valve n for the steam to be reduced in pressure, steam valve o admitting
steam to steam jacket, discharge valves p, q, manometers, etcetera.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what I
claim is:
A direct acting high pressure steam press for woven fabrics in which the
fabric wound on a hollow perforated cylinder is pressed and steamed by the
action of dry superheated steam, the two operations being performed together or

page_text: either by itself according as the two cylinders b, c, are set with the passage through
their perforations open or closed, substantially as described and shewn.
Dated this 28th day of May 1891.
CAPITAINE & VON HERTLING,
89, Chancery Lane, London, W.C., Agents for the Applicant.