Improvements in Machines for Steaming Cloth.
Year: 1892

page_text: Date of Application, 31st Dec., 1892
Complete Specification Left, 6th Mar., 1893-Accepted, 8th Apr., 1893
PROVISIONAL SPECIFICATION.
Improvements in Machines for Steaming Cloth.
I ALEXANDER THEODOR SARFERT, Manufacturer, of Klosterstrasse, Chemnitz,
in the Kingdom of Saxony, do hereby declare the nature of the invention to be as
follows:-
My invention relates to apparatus in which the cloth to be treated is guided
between an endless apron and a perforated steam cylinder or drum, and has for its
object, to avoid the formation of water stains on the cloth.
For this purpose, I employ a helically coiled pipe, supplied with high pressure
steam, or another suitable heating body placed inside the steam cylinder, said
heating coil or body being situated between the steam cylinder and an inner
cylinder (preferably of corrugated sheet metal) mounted in the interior of the steam
cylinder and coaxial to the same; the said heating coil may, however be situated in
the interior of the inner cylinder. The said inner cylinder is preferably open at
both ends, and shorter than the outer cylinder, so as to leave a clearance between
the ends of the two cylinders.
The heating coil heats the interior of the steam cylinder and the whole of the
inner cylinder to such an extent, that the particles of water which drop upon the
inner cylinder are rapidly evaporated by their contact with the revolving surface of
the highly heated inner cylinder.
One of the ends of the inner cylinder (or both ends) has an inner flange to prevent
the escape of water of condensation.
The inner cylinder may be fixed either to the outer or steam cylinder, or to the
hollow shaft which passes through the same.
Dated this 30th day of December 1892.
FAIRFAX & WETTER,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Machines for Steaming Oloth.
I, ALEXANDER THEODOR SARFERT, Manufacturer, of Klosterstrasse, Chemnitz,
in the Kingdom of Saxony, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement:-
Continuous steaming machines as hitherto known or generally used, have the
drawback, that the water of condensation carried by the steam into the perforated
cylinder, cannot be completely removed, although attempts have been made to relieve
the steam of condensed water, before it enters the machine, and also in the machine
itself. This difficulty presents itself, whether the cylinder is heated from inside or
from outside.
The present steaming machine has for its object, to steam woven fabrics uniformly.
from beginning to end, to avoid injury to raised portions of the cloth (due to
irregular or excessive pressure), which defect cap scarcely be avoided, when the
cloth is subjected to steaming when rolled up. Moreover, the shrinking which
always occurs, when the fabric is steamed in the rolled up condition, is avoided in
my continuous machine, by holding the fabric fast with a cloth cover.
To avoid water of condensation during the process of steaming, I place in the

page_text: interior of the steaming cylinder a pipe coil, and inside or outside the cylinder a
sheet metal jacket, preferably of corrugated metal, the latter being applied in such
a manner, that it is situated as near as possible to the heating coil.
.
On this jacket drops the water which is carried along by the fresh steam, and is
immediately afterwards re-evaporated, because the rotation of the cylinder causes
the water to fall always on newly heated surfaces.
In the accompanying drawings;
Fig. 1 is a front elevation of a steaming machine embodying my invention.
Fig. 2 is a cross section of the same.
Fig. 3 is a longitudinal section of a drum or cylinder mounted on a revolving
shaft.
Fig. 4 is a longitudinal section of a cylinder mounted on a stationary shaft, the
cylinder being provided with stuffing boxes and revolving on the axle.
The steaming cylinder or drum a contains a corrugated sheet metal cylinder b,
rigidly connected either with the cylinder a or with the axle e. In order that the
dry steam may escape at both ends, the corrugated cylinder does not occupy the
whole. length of the steam cylinder a.
As the cylinder or drum b revolves, the drops of water roll from one corrugation
to the following, until they are evaporated.
To prevent the condensed water from flowing out of the cylinder b, the ends of the
latter are provided with inside flanges or borders i.
In the interior of the corrugated cylinder, or between the steaming drum a and
the corrugated cylinder b is mounted a helically coiled pipe c, and above the steaming
drum there is a roller d which may be heated, and is pressed against two guide
rollers, to prevent the escape of steam at the top.
An endless cloth cover or apron w, passes over nearly the whole of the steam
cylinder and the guide rollers land ff, which latter can be adjusted by means of
a right and left hand screw, so as to stretch or slacken the endless apron, as may be
required. The endless apron may be made of impervious cloth or felt.
The fabric to be steamed, first passes over the tension apparatus formed by two
rods, then to an automatic opener or spreading roller h, subsequently between
the rollers and d on to the drum a, as indicated in Fig. 2 by arrows.
On its way
over the drum the fabric is pressed against the latter by the endless cloth cover w,
after which it passes out between the roller d and the second guide roller and is
finally wound upon a roller k.
In the modification represented by Fig. 4, the coil c is arranged or formed in such
a manner, that the steam escapes at the same end of the cylinder, through which it
has entered.
On the opposite side of the cylinder the axle has also a pair of longitudinal
canals u, u, one serving as a steam and the other as an air inlet, so that in the latter
case, the machine may also be used for drying the cloth.
Motion is imparted to the machine from a horizontal main shaft o provided with a
fast and a loose pulley, and is transmitted from o to the shaft r by means of friction
plates o' o', and bevel gearing q¹ q².
+
The shaft carries a spur wheel r¹, which transmits motion to the shaft e or to
the cylinder a through a wheel, according as the latter is connected with the said
shaft or with the cylinder.
Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is ;-
In a continuously working steaming machine in which the fabric is caused to pass
between an endless cloth cover or apron and a perforated cylinder, the combination
of the said cylinder with a steam coil situated in the interior of the same, and a
sheet metal cylinder, preferably corrugated, likewise situated in the interior of the
said perforated cylinder and close to the steam coil, the said steam coil being adapted

page_text: to heat the inner (corrugated) cylinder in such a manner, that any condensed water
carried over by the steam and deposited on the inner cylinder will be rapidly
evaporated, substantially as described and for the purpose specified.
Dated this 1st day of March 1893.
FAIRFAX & WETTER,
433, Strand, London, Agents.