Improvements in Treating Cotton Yarn and Apparatus therefor.
Year: 1898

page_text: COMPLETE SPECIFICATION.
Improvements in Treating Cotton Yarn and Apparatus therefor.
I, EDMUND HANTSCH, of III Bezirk, Langenbielau, in Saxony, German
Empire, Artizan, 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 ;-
The object of the present invention is a process and apparatus for treating
cotton yarn, and especially such as is sharply twisted, upon the cops, and ren-
dering the same suitable for further working in quite a special manner, and
with relatively small expense.
According to the process usual for the like object hitherto, the cotton yarn cops
were either steamed or they were stored in moist and warm cellars and similar
spaces.
The first process has the serious drawback that it occasioned very consider-
able expense, because the steam used for the purpose only served partially for
this object, and the greater part thereof condensed without being utilized. This
involved considerable expense, and there is a further objection to the process
inasmuch as the yarn under the influence of the steam is very easily discoloured.
According to the alternative process, the cops were stored in large cellars
containing damp air. In this case also the cost of fuel for maintaining the
temperature of these large spaces was considerable, but the main drawback of
this second process consists in that it is necessary for the stowage of a large
number of cops to provide very large cellars or the like which is not always
practicable, and involves a large outlay of capital, because the cops under treat-
ment must be kept there a considerable time, consequently the capital invested
is very considerably increased.
According to my present invention the cops are treated in the following
manner:-
They are exposed for a certain time to a stream of very moist air in such a
manner that they are completely penetrated by this moist air.
A constructional form of the apparatus such as is suitable for carrying out
the above set forth process is illustrated in the accompanying drawing.
can
In the boiler 1 are placed longitudinally two rails upon which the perforated
receptacles 5 51 (and so on) provided with rollers can be inserted. The boiler 1
is hermetically closed by means of a door 6 secured in any suitable manner,
and possesses also upon its upper side a projection 7 which serves to hold a
safety valve. Below the rails is placed a system of tubes 4 through which com-
pressed air thoroughly moistened in any suitable manner pass. This
moistening of the compressed air can be effected for instance by forcing sprays
of water in a very finely divided state through the perforations in the recep-
tacles 5 by means of an injector or the like into the current of air passing
through the pump 3. The receptacles 5 51 (and so forth) containing the cops
are then brought as required into the interior of the vessel 1, which is then
closed and filled with the moist air.

page_text: The construction of the vessel or of the pump may be of any suitable form,
the exact pattern thereof being without influence upon the principle of the
invention.
The advantages of the improved process above described will be obvious from
what has been set forth before, especially the great reduction of the cost of
installation, and of the carrying out of the process.
Having now particularly described and ascertained the nature of my said in-
vention and in what manner the same is to be performed I declare that what
I claim is―
1. Process and apparatus for treating cotton yarn in cops by the forcing in of
moist air to render the yarn suitable for further operations, characterized by
exposing the yarn in cops to a current of moist air passing thoroughly through
-the same.
2. An apparatus for carrying into practice the process set forth in Claim 1,
consisting of a vessel or boiler 1 of suitable construction and provided with
rails, on which are placed a number of perforated receptacles (5 51 and so forth)
which receptacles can be inserted or removed through the door 6 of the vessel 1,
in which vessel a current of moist air supplied by an air compression pump 3,
moistens the cops placed in the receptacles 5 5¹ (and so forth), substantially as
described.