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Патент USA US2403819

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July 9, 1946.
K. M. MCLELLAN
2,403,819
APPARATUS FOR TREATING THREAD AND THE LIKE
Filed June 30, 1944
3 Sheets-Sheet 1
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BY
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July 9, 1946.
2,403,81 9
K. M. MCLELLAN
APPARATUS FOR TREATING THREAD AND THE LIKE
Filed June 30, 1944
3 Sheets-Sheet 2
INVENTOR.
h’ENNfTH 1‘1- H‘L ELLAN
BY
M x. M7”
July 9, 1946.
K. M. McLELLAN
2,403,8 1 9
APPARATUS FOR TREATING THREAD AND THE LIKE
Filed June 550, 1944
3 Sheets-Sheet 3
Patented July 9, 1946
2,403,819
UNITED STATES PATENT OFFICE
I
2,403,319
APPARATUS FOR TREATING THREAD
AND THE LIKE
Kenneth M. McLellan, Cleveland, Ohio, asslgnor
to Industrial Rayon Corporation, Cleveland.
Ohio, a corporation oi’ Delaware
1
Application June 30, 1944, Serial No. 542,964
6 Claims. (0!. 34—l53)
This invention relates to an improvement in
apparatus for the continuous processing or treat
ment of material, such as rayon yarn or thread
and the like; particularly, it relates to means for
suitably drying yarn or thread before it is finally
wound on a. package or thread store device. The
invention will be described in connection with
apparatus for the manufacture of viscose rayon
yarn or thread by the continuous process method
and constitutes an improvement of the yarn
drying means shown and described in Patent
No. 2,303,697 issued to R. F. Bergmann.
In a machine for producing rayon by the con
tinuous process as described in said Bergmann
patent, a plurality of threads is formed by ex
trusion of a viscose solution into a coagulating
bath. Each thread is Withdrawn from the bath
and passed to a downwardly extending series of
thread-advancing. thread-storing reels on each
of which it is continuously and temporarily 20
stored in a plurality of generally helical turns.
The thread is subjected to the action of a pro
cessing liquid on each of a plurality of reels,
then dried on a reel and ?nally twisted by a
cap twister and wound on a bobbin. The pro 25
cessing reels are arranged in banks disposed on
both sides of the apparatus.
‘
Since this invention is an improvement 01' the
2
supply of air-?ow through the reel enclosure, it
is also important to control air-?ow over the
reel periphery whereon the continuously advanc
lug thread is dried. Such control is desirable
in order that substantially all vapor given off
by the drying thread on the reel periphery be
carried o? by the air stream caused to ?ow
thereover.
-
This invention provides a means located in
the enclosure and about the periphery of the
thread store device that causes air brought into
the enclosure to flow completely around the
reel periphery, the vapors given off by the drying
thread then being continuously exhausted. This
results in substantially preventing the escape
and condensation of vapor within the enclosure
walls and the possibility of re-wetting the dried
thread. These advantageous features will be
come apparent from the following description
and drawings:
‘
In the drawings,
Figure i represents a diagrammatic and a
partial sectional end view of an apparatus for
producing rayon by a continuous process;
Figure 2 is a cross section of- the drying
enclosure;
Figure 3 is a plan view partly in section of
adjoining drying chambers taken across line
drying apparatus 01' the Bergmann patent, the
A-A of Figure‘2;
description is primarily limited to the last reel 30 Figure 4 is a sectional elevation taken across
enclosure, that is, the drying reel enclosure oi‘
line 3-3 of Fisure 3;
the continuous processing machine. The drying
Figures 5 and 6 are pempective views of two
of thread or the like, particularly arti?cial silk
modi?cations of an adjusting device for con
thread, produced by a wet-spinning process plays
trolling the ventilation in the drying enclosure;
a very important part in determining the ?nal
Figure 'l is a perspective view 01' the reel
characteristics of the ?nished product. As an
ventilating means.
example, uniformity or lack of uniformity of the
In the illustrated apparatus of Figure 1, there
drying treatment to which the thread is sub
is shown only one of two duplicate sides parthr
iected determines to a large extent the degree of
in section of a continuous process spinning ma
uniformity of the physical and physiochemical 40 chine where viscose is extended from a spinneret
characteristics of the thread. It is obviously de
it into a coagulating hath forming thread il
sirable to have thread as uniformly dry as pos
sible along its entire length.
Drying of thread continuously in a continu
wound on and advanced by reel I! to a series of
thread-storing and advancing reels II to 20
whereon the thread is subjected to various treat
ous process apparatus may be effected on an
ments. The treatment ?uids are supplied
open-ended reel oi.’ the cantilever type, as shown
through ori?ce tubes 2| located immediately
and described in Patent No. 2,210,912 issued in
above the reels. Upon leaving the last reel II,
the name of W. F. Knebusch. The thread store,
the thread is guided through openings 23, 24
thread-advancing reel rotates within an en
in the top of a ventilated enclosure 28 and of a
closure where the ?ow of air and temperature 50 cylindrical collar 25 (see Figures 2 and 3) in
are'controlled and where the movement of the
the enclosure, respectively, to a drying reel 21
air through the enclosure and about the reel
upon which yam II is wound. After being
carries oil the vapors given oil by the drying
dried during its advancement on the reel, the
thread.
yarn is led through an opening 28 in the bot
In addition. however, to the control or the 56 tom of the enclosure, then to a guide 29, thence
2,403,819
3
down to be initially twisted by a cap twister
'
4
.
effectively controlled by adjusting-the size of the
exhaust opening, Such adjusting means are illus
I! and wound on a bobbin or collecting package
trated in Figures 5 and 6. In the illustration, the
30. Bobbin 30 is mounted on spindle 33 which
ventilation-controlling means it comprises a ?at
is bolted to a support 34 attached to the base
and substantially rectangular piece of metal hav
frame portion 35 of the spinning machine. The
ing a circular opening at one end or several
bobbin is rotated by belt 3| driven by any suit
smaller openings, the total area being substan
able driving means.
tially that of exhaust opening It in the bottom of
The enclosure 28 of drying reel 21 is con
enclosure 2}. Guides 41 are positioned on each
structed to provide for the admission of an ample
volume of air to ventilate its interior. The air 10 side of the adjustable ori?ce 45 to direct its lon
gitudinal movement and to frictionally hold it in
may be withdrawn from the enclosure 26 by
position when a desirable opening has been deter
means of a ventilating device having an exhaust
entry positioned above the thread-drying reel.
mined,
For convenience. the end of the ori?ce plate ll
However, when the thread-processing conditions
are changed so that relatively large volumes of 15 may be curled, as shown at ll, to provide a sec
tion that may be readily grasped to facilitate its
vapor are liberated in the enclosure, it has been
movement.
found that a ventilating device having an ex
During the operation of the apparatus, air is
drawn into the enclosure by negative pressure
factorily removing the liberated vapors. By the 20 through the louvers and/or through the opening
39 within the front of the enclosure. The air
provision in accordance with this invention, how
then ?ows about the reel 21 which gives off the
ever, of a cylindrical collar 25 around the dry
ing reel, the vapor-laden air surrounding the
vapors. Further, the air between the reel sur
reel is promptly and continuously exhausted by
face and the collar is forced into a following cir
25 culatory motion for part of the distance around
a circulatory and scouring action.
Referring to Figures 2 through 7, the drying
and acts as a scrubbing agent until it is drawn
haust entry positioned only above the thread
drying reel was sometimes not e?'ective in satis
reel 21 is shown having thereon a number of
into the exhaust conduit. Thus, as the vapor
turns of thread, advancing in helicoidal fashion
rises, it is at once absorbed by a current of air to
to its unsupported end. Upon reaching the end
be carried away and exhausted.
of the reel, the thread is guided downwardly 30
‘The cylinder or collar 2! has a longitudinal
through an aperture 28 in the bottom of the en
slot 24 in its circumference extending from its
closure 26 to a guide 19 (see Figure 1), then to be
front to a point where the thread is to be drawn
twisted and wound on bobbin 30. Heating ?uid
or led through to the reel. This slot will permit
may be, supplied from any suitable source to the
the handling of the thread and yet it will not be
interior of reel shaft 38 which has a return con 35 large enough to disturb the normal movement of
duit extending substantially into the reel.
the air currents within the cylinder. Also. if the
An enclosure 26 is provided for each drying reel
cylinder is made of a light material, as aluminum,
of the apparatus in order to aid in maintaining
it will be desirable to have its front lill curled back
the desired drying conditions in the vicinity of
as shown in Figure 7 to provide additional
the reel. Each enclosure has a hinged door 38
which when opened exposes the front and top of
each reel for inspection thereof. Further, there
. strength, and also to prevent the catching of
yarn in the event of breakage and accumulation
of it on the reel. Of course, if the cylinder wall is
of a substantial thickness, the edge need only be
may be provided a small hinged window 88 within
the front of the hinged door. The window may
?nished of! in a rounded manner,
be frictionally pivoted to permit the view of the 45
I claim:
interior of the enclosure or, if desired, to provide
1. Apparatus for the processing of thread com
for additional ventilation by a partial or full
prising a. thread-advancing, thread-store device
opening. The top of the enclosure may have a
which continuously but temporarily stores thread
plurality of louvers All for the provision of a con
and advances it lengthwise thereof in a plurality
tinual supply of ventilating air withdrawn from 50 of generally helical turns; an enclosure for said
the operating room in which the apparatus is in
thread-store device; an opening in said enclosure
stalled.
for admitting thread to said thread-store device;
Encompassing substantially the supported end
means for performing a processing step on the
of the drying reel is a ?anged cylinder or collar
thread giving rise to vapor; inlet means in said
2| held in position by bolts 42 running through 55 enclosure independent of said opening for ad
the ?ange and a partition 43 of the enclosure
mitting air into the interior of said enclosure;
having a circular hole for the admission of the
outlet means in said enclosure for exhausting air
reel and ?tting tightly within the walls of the
from said enclosure; and means disposed within
said enclosure and circumferentially spaced about
enclosure. Partition 43 is attached to an angle
18 bolted to three sides of the enclosure walls. 60 the thread-store device, said means being adapted
to direct the flow of air from said inlet means
Substantially immediately back of the collar 25
over the periphery of‘ said thread store device and
and in the bottom of enclosure 26 is an opening
to said outlet means thereby withdrawing said
it for exhausting or ventilating the enclosure.
vapor from the vicinity of said thread-store de
The exhausted air is carried on’ through conduit
‘
ill (see Figure 1). Due to a maintained vacuum 65 vice.
2. An apparatus of the character described in
in the exhausting system, there will be a move
claim 1 in which the circumi'erentially spaced
ment of air drawn from the operating room
means about the thread-store device encloses one
through the louvers, about and concentrically of
end of said thread-store device.
the reel, then into the exhaust opening and into
3. An apparatus of the character described in
conduit III. Thus. as vapors rise from the moist 70
portion of the reel, they will be immediately and
continually withdrawn.
The amount of air going through the enclosure
naturally regulates the ventilation and tempera
ture within the enclosure and this amount can be
claim 1 in which the eircumferentially spaced
means about the thread-store device comprises
a cylinder positioned adjacent one end of said
thread-store-device.
.
‘
4. An apparatus of the character described in
9,408,810
5
means for performing a processing step on the
thread giving rise to vapor: inlet means in said
enclosure independent or said opening for ad;
mitting air into the interior or said enclosure:
outlet means in said enclosure for exhausting air
from said enclosure; a partition in said enclosure
separating said air inlet from said outlet means
having a circular opening for said thread-store
device, and an open~ended cylinder attached to
means about the thread-store device comprises
an open-ended cylinder permitting the ?ow of
air therethrough and about the thread-store de
vice.
5. An apparatus of the character described in
claim 1 in which said outlet means for exhaust
in: air from the thread-stcre-enclosure device is
positioned in the bottom of said enclosure and
substantially adjacent the means circumferen
tially spaced about the thread-store device.
6
for admitting thread to said thread-store device;
claim 1 in which the circumterentially spaced
‘ said partition aligned with said opening and cir
6. Apparatus for the processing of thread com
prising a thread-advancing, thread-store device
which continuously but temporarily stores thread
and advances it lengthwise thereof in a plurality l5
of generally helical turns; an enclosure for said
thread-store device; an opening in said enclosure
cumi‘erentially spaced about said thread-store
device, the air from said inlet means ?owing
through said cylinder about the thread-store de
vice periphery and thence to said outlet means.
KENNETH M. MCLEILAN.
Certi?cate of Correction
July 9, 1940.
Patent No. 2,403,819.
KENNETH M. McLELLAN
It is hereby certi?ed that error appears in the printed speci?cation of the above
numbered patent requiring correction as follows: Column 2, line 40, for the word
“extended” read extruded; and that the said Letters Patent should be read with this
correction therein that the same may conform to the record of the case in the Patent
Signed and sealed this 1st day of October, A. D. 1946.
[ml
LESLIE FRAZER,
First Assistant Gammissioner of Patents.
9,408,810
5
means for performing a processing step on the
thread giving rise to vapor: inlet means in said
enclosure independent or said opening for ad;
mitting air into the interior or said enclosure:
outlet means in said enclosure for exhausting air
from said enclosure; a partition in said enclosure
separating said air inlet from said outlet means
having a circular opening for said thread-store
device, and an open~ended cylinder attached to
means about the thread-store device comprises
an open-ended cylinder permitting the ?ow of
air therethrough and about the thread-store de
vice.
5. An apparatus of the character described in
claim 1 in which said outlet means for exhaust
in: air from the thread-stcre-enclosure device is
positioned in the bottom of said enclosure and
substantially adjacent the means circumferen
tially spaced about the thread-store device.
6
for admitting thread to said thread-store device;
claim 1 in which the circumterentially spaced
‘ said partition aligned with said opening and cir
6. Apparatus for the processing of thread com
prising a thread-advancing, thread-store device
which continuously but temporarily stores thread
and advances it lengthwise thereof in a plurality l5
of generally helical turns; an enclosure for said
thread-store device; an opening in said enclosure
cumi‘erentially spaced about said thread-store
device, the air from said inlet means ?owing
through said cylinder about the thread-store de
vice periphery and thence to said outlet means.
KENNETH M. MCLEILAN.
Certi?cate of Correction
July 9, 1940.
Patent No. 2,403,819.
KENNETH M. McLELLAN
It is hereby certi?ed that error appears in the printed speci?cation of the above
numbered patent requiring correction as follows: Column 2, line 40, for the word
“extended” read extruded; and that the said Letters Patent should be read with this
correction therein that the same may conform to the record of the case in the Patent
Signed and sealed this 1st day of October, A. D. 1946.
[ml
LESLIE FRAZER,
First Assistant Gammissioner of Patents.
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