Method and Apparatus for Drying Yarn and the like in Hanks,
Year: 1898

page_text: PROVISIONAL SI EUITIVATION:
Method and Apparatus for Drying Yarn and the like in Hanks,
I, AUGUST MONFORTS, of Kronprinzenstrasse 18, München, Gladbach, Ger-
many, Machine Manufacturer, do hereby declare the nature of this invention
to be as follows;-
The methods heretofore known for drying dressed, dyed, or bleached yarn in
the hank, have the very great drawback that during the drying process the
several threads retain their relative positions and consequently adhere to one
another. This is found to be very objectionable particularly in the case of
dressed yarn as such adhesion renders the rinsing of the yarn very difficult, and
the yarn also loses its circular form in cross section in the operation.
In order to obviate this drawback according to this invention the banks are
subjected to a treatment whereby the several threads are detached from those
adjacent to them so that they are completely detached from one another at the
end of the drying process. This is effected by means of a drying apparatus
through which the hanks of yarn are passed and in which the said hanks are
subjected to jolts or are alternately stretched and slackened. The hanks
which they
of yarn are carried by usual yarn carriers in
are normally
held in a stetched condition. In order to produce the desired effect transverse
bars of the yarn carriers are moved towards and then quickly away from each
other whereby the hanks are first slackened and relieved of strain and then
suddenly stretched, receiving a blow or jerk which acts to loosen the threads as
effectually as in the slackening movement. The threads loosened in this manner
dry much more quickly than threads which adhere together, their entire surface
being exposed to the hot air, whereas in the case of bundles of adhering threads
the drying air penetrates very slowly and imperfectly into the interior of such
bundles. The threads retain their original round shaped section and acquire
a smooth surface.
In one arrangement of apparatus according to this invention the yarn carriers
are mounted on chains which are moved in an endless course through the
apparatus. A transverse rod of each pair of carriers is situated in fixed hooks
whilst the oppositely situated rod of each pair rests in pivotally supported hooks
A suitable
that are provided beyond their pivot with an extension or arm.
spring acts to hold the pivoted hooks in such a position that a strain is normally
exerted upon the yarn carried thereby. The chains are placed on drums or
chain wheels of which one or more are driven by suitable mechanism. On the
machine framing there are provided fixed stops in the path of the arms on the
pivoted hooks. When the chains together with the transverse rods that carry

page_text: the hanks of yarn move onward through the machine, the arms on the pivoted
hooks strike against the said fixed stops whereby the said hooks are rotated
about their pivots in such a manner that the transverse rod held by them is
moved towards the other rod of the pair, whereby the hanks are relieved of
strain and are able to hang loosely. When the fixed stop is passed and the armi
released the pivoted hook, together with the rod carried by it, is caused to
spring outward by the action of the spring. By this means a violent jolt is
imparted to the hanks of yarn in consequence of the sharp blow or jerk, where-
upon the hanks are again held in a state of strain.
For the purpose of heating the air passing through the apparatus there may
be provided in the lower part a number of steam elements or the like which
are heated in a suitable manner.
In order to allow of readily inserting and removing the yarn carriers with the
hanks, there is provided at the front end of the machine a plate or fillet which is
situated in the path of the arms on the pivoted hooks, and which allows of the
said hooks as they pass this point being moved nearer to the opposite hooks of
the pair.
The number of the fixed stop pins to be provided in the machine, may be
varied according to the number of jolts it is desired to impart to the yarn.
Together with the jolts there are also imparted to the yarn carriers small
rotary movements which are added to one another as the jolts are repeated,
whereby the bearing place of the hanks on the carriers is continually changing
so that there are no parts of the hank that are not traversed by the hot air.
Dated thin 21at day of Amoniak 1808
F. WISE HOWORTH,
46, Lincoln's Inn Fields, London, W.C.,
Agent for the Applicant.
COMPLETE SPECIFICATION.
Method and Apparatus for Drying Yarn and the like in Hanks.
I, AUGUST MONFORTS, of Kronprinzenstrasse 18, München, Gladbach, Ger-
many, Machine 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: —
The methods heretofore known for drying dressed, dyed, or bleached yarn in
the hauk, have the very great drawback that during the drying process the
several threads retain their relative positions and consequently adhere to one
another. This is found to be very objectionable particularly in the case of
dressed yarn as such adhesion renders the rinsing of the yarn very difficult, and
the yarn also loses its circular form in cross section in the operation.
In order to obviate this drawback, according to this invention the hanks are
subjected to a treatment whereby the several threads are detached from those
adjacent to them so that they are completely detached from one another at the
end of the drying process. This is effected by means of a drying, apparatus
through which the hanks of yarn are passed and in which the said hanks are
subjected to jolts or jerks and are alternately stretched and slackened.
The hanks of yarn are carried by the several yarn carriers in which they are nor-
mally held in a stretched condition In order to produce the desired effect transverse

page_text: bars of the yarn carriers are moved towards and then quickly away from each
other whereby the hanks are first slackened and relieved of strain and then
suddenly stretched, receiving a blow or jerk which acts to loosen the threads as
effectually as in the slackening movement. The threads loosened in this manner
dry much more quickly than threads which adhere together, their entire surface
being exposed to the hot air, whereas in the case of bundles of adhering threads
the drying air penetrates very slowly and imperfectly into the interior of such
bundles. Moreover, the threads retain their original round shape section and
acquire a smooth surface.
The accompanying drawings illustrate apparatus for drying yarn according
to my invention Fig. 1 being an elevation and Figs. 2, 3 and detail views.
y are the yarn carriers mounted on chains which are moved in an endless course
through the apparatus. One of the transverse rods g of each pair of carriers
is arranged in fixed hooks f whilst the oppositely situated rod of each pair rests
in pivotally supported hooks o that are provided beyond their pivot with an
extension or arm a. A spring e acts to hold the pivoted hooks o in such a posi-
tion that a strain is normally exerted upon the yarn carried thereby. The
chains are placed on drums or chain wheels of which one or more are driven
by suitable mechanism. On the machine framing there are provided fixed stops s
in the path of the arms a. When the chains together with the transverse rods y
that carry the hanks of yarn 6 move in the direction of the arrow Fig. 2, through
the machine, the arms a strike against the said fixed stops s whereby the said
hooks o are moved about their nivots in such a manner that the rod g held by
them is moved towards the other rod of the pair, whereby the hanks are relieved
of strain and are able to hang loosely as shown in Fig. 3. When the fixed
stop s is passed and the arm a released the pivoted hook o, together with the
rod g carried by it, is caused to spring outward by the action of the spring e.
By this means a violent jolt is imparted to the hanks of yarn, in consequence
of the sharp blow or jerk, whereupon the hanks are again held in a state of
strain.
For the purpose of heating the air passing through the apparatus there are
provided in the lower part a number of steam elements h or heating pipes which
are heated in a suitable manner.
In order to allow of readily inserting and removing the yarn carriers g with
the hanks b, there is provided at the front end of the machine a plate or fillet
which is also situated in the path of the arms a of the pivoted hooks o and which
allows of the said hooks as they pass this point being moved nearer to the oppo-
site hooks f of the pair.
The number of the fixed stop pins s to be provided in the machine, may be
varied according to the number of jolts it is desired to impart to the yarn.
Together with the jolts there are also imparted to the yarn carriers small
rotary movements which are added to one another as the jolts are repeated,
whereby the bearing place of the hanks on the carriers is continually changing,
so that there are no parts of the hank that are not traversed by the hot air.
Having now particularly described and ascertained the nature of the said in-
vention and in what manner the same is to be performed I declare that what I
claim is;-
-
1. The herein described method of drying yarn in the hank, according to which
the hanks are intermittently loosened and stretched during the drying process,
whereby jolting or jerking of the yarn threads is produced, so that the threads
are detached from one another and the drying air enabled to penetrate to all
parts of the yarn.
2. Apparatus for carrying out the method referred to in Claim 1, in which
the transverse rods constituting the yarn carriers are carried by chains to which
longitudinal movement is imparted and one of each pair of said transverse rods
is periodically moved towards the other, against the action of springs, and is

page_text: then released, whereby the hanks are alternately slackened and rapidly stretched
and strained substantially as described.
3. Apparatus for drying yarn in the hank constructed arranged and operating
substantially as shown in and described with reference to the accompanying
drawings.
Dated this 25th day of May 1899.
F. WISE HOWORTH,
46, Lincoln's Inn Fields, London, W.C., Agent for the Applicant.