Improvements in Machines for Mercerising Hanks of Yarn.
Year: 1899

page_text: Date of Application, 5th Oct., 1899
Complete Specification Left, 23rd June, 1900-Accepted, 11th Aug., 1900
PROVISIONAL SPECIFICATION.
Improvements in Machines for Mercerising Hanks of Yarn.
I, FRITZ CARL GÄRTNER, Ph.D., of 58, Aeussere Weberstrasse, Zittau, Saxony,
in the Empire, of Germany, Manufacturer, do hereby declare the nature of this
invention to be as follows:-
This invention relates to mercerising machines of the kind made by Johann
Kleinewefer's Söhne of Crefeld No. 16823 of 1898 and consists in providing a
revoluble drum or the like with an expansible periphery, that is to say, the
drum is composed of several (for instance six) segments, sectors or other parts
which when at rest or in slow movement are pressed by means of a spring
towards the centre line of the shaft in such a way that they form a connected
drum of suitable diameter, having a crate-like periphery. When the drun
is rapidly rotated, the parts are forced outwards by centrifugal force and form
a drum with an enlarged periphery.
Hanks of yarn wound on the drum are thus stretched when the drum is
rapidly rotated. The stretching power is so great that the machine at a speed
of 700 revolutions per minute, stretches the yarn beyond its original length, the
stretching being greater the longer the machine is allowed to rotate.
The soda lye in this machine is preferably not spurted on to the yarn through
the perforated axle carrying the drum, but the drum is immersed almost up
to its axle in a trough, filled with soda lye, which trough is suitably mounted
to enable it to be lowered and raised. The washing water is however sprinkled
on the yarn through the perforated shaft of the drum. The drum is enclosed
in a casing in order to prevent any scattering of the liquid.
In order to enable the invention to be better understood, reference will be had to
the accompanying diagrammatical drawings in which Fig. 1 is a sectional side cie-
vation of the machine and Fig. 2a cross section of the drum. In these B is the
drum formed for example of six or more segments 1 to 6. C is the hollow per-
forated axle in which the drum is carried in suitable bearings, one end of the
said axle being supported by a screwed pin or pivot d. K is the trough for soda
lye. M the casing of suitable construction adapted to be opened to afford access
to the interior.
The segments 1, 2, and 3 are shown in Fig. 2 in a condition of repose and
slow movement, and the segments 4 to 6 in the position assumed in rapid move-
ment. The six segments or parts are arranged in duplicate at each end of the
drum and two or more bars s are connected to each opposing pair of segments.
These form together the crate-like periphery of the drum on which the yarn is
placed. Instead of bars, perforated sheet metal may also be employed. Springs
such as A are suitably arranged to keep the drum parts normally contracted.
The method of working is briefly as follows: —
When the casing M has been opened and turned back, and the pin d Fig. 1
screwed back, the yarn is placed on the drum in a thick layer and the pin is
then screwed forward again, and after the trough K has been raised, the drum
is slowly rotated until the yarn is fully saturated. The trough K is then

page_text: the wash-
lowered, the casing M closed again and the drum set in rapid rotation. The
soda lye is thrown off and flows back into the trough. The trough is then
closed with
a lid, which also serves for carrying off
ing water, (which is not shown in this figure) water being sprinkled on the
yarn. When this has been thrown off, the drum is brought to rest and the
casing is again turned back and the yarn is finished..
Dated this 4th day of October 1899.
Improvements in Machines for Mercerising Hanks of Yarn.
I, FRITZ CARL GÄRTNER, Ph.D., of 58, Aeussere Weberstrasse, Zittau, Saxony,
in the Empire of Germany, Manufacturer, 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:-
This invention relates to mercerising machines of the kind made by Johann
Kleinewefer's Söhne of Crefeld No. 16823 of 1898 and consists in providing a
revoluble drum or the like with an expansible periphery, that is to say, the
drum is composed of several (for instance six) segments, sectors or other parts
which when at rest or in slow movement are pressed by means of a spring
towards the centre line of the shaft in such a way that they form a connected
drum of suitable diameter, having a crate-like periphery. When the drum
is rapidly rotated, the parts are forced outwards by centrifugal force and form
a drum with an enlarged periphery.
Hanks of yarn wound on the drum are thus stretched when the drum is
rapidly rotated. The stretching power is so great that the machine at a speed
of 700 revolutions per minute, stretches the yarn beyond its original length, the
stretching being greater the longer the machine is allowed to rotate.
The soda lye in this machine is preferably not spurted on to the yarn through
the perforated axle carrying the drum, but the drum is immersed almost up
to its axle in a trough, filled with soda lye, which trough is suitably mounted
to enable it to be lowered and raised. The washing water is however sprinkled
on the yarn through the perforated shaft of the drum. The drum is enclosed
in a casing in order to prevent any scattering of the liquid.
In order to enable the invention to be better understood, reference will be
had to the diagrammatical drawings accompanying the Provisional Specification
in which Fig. 1 is a sectional side elevation of the machine and Fig. 2 a cross
section of the drum. In these B is the drum formed for example of six or
more segments 1 to 6. C is the hollow perforated axle in which the drum is
carried in suitable bearings one end of the said axle being supported by a screwed
pin or pivot d. K is the trough for soda lye. M the casing of suitable con-
struction adapted to be opened to afford access to the interior.
ment.
The segments 1, 2 and 3 are shown in Fig. 2 in condition of repose and
slow movement, and the segments 4 to 6 in the position assumed in rapid move-
The six segments or parts are arranged in duplicate at each end of the
drum and two or more bars s are connected to each opposing pair of segments.
These form together the crate-like periphery of the drum on which the yarn is
placed. Instead of bars, perforated sheet metal may also be employed. Springs
such as A are suitably arranged to keep the drum parts normally contracted.

page_text: The method of working is briefly as follows:
-
When the casing M has been opened and turned back, and the pin d Fig. 1
screwed back, the yarn is placed on the drum in a thick layer and the pin is
then screwed forward again, and after the trough K has been raised, the drum
is slowly rotated until the yarn is fully saturated. The trough K is then
lowered, the casing M closed again and the drum set in rapid rotation. The
soda lye is thrown off and flows back into the trough.
The trough
is then closed with a lid, which also serves for carrying off the wash-
ing water, (which is not shown in this figure) water being sprinkled on the
yarn. When this has been thrown off, the drum is brought to rest and the
casing is again turned back and the yarn is finished.
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:-
In mercerising machines of the kind described in Patent No. 16823 98 a revoluble
drum or the like composed of several segments which when at rest or in
slow movement are pressed by means of a spring towards the centre of the shaft,
in such a way that they form a connected drum of suitable diameter having a
crate like periphery, but when the drum is rapidly rotated are forced outwards
by centrifugal force, and thus enlarge the periphery of the drum, substantially
as herein before described.
Dated this 18th day of June 1900.
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Agents for the Applicant.