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Патент USA US2411049

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Nov. 12, 1946.
2,411,049
|_. J. MADDEN
FUNNEL
Filed Sept. 17, 1945
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IN‘VENTOR
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BY
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' ATTORNEY
.
Patented Nov. 12,1946
‘
UNITED STATES‘ PATENT OFFICE
'
2,411,049
'
.
FUNNEL
Leo J. Madden, Whitesboro, N. Y., asslgnor to
Skenandoa Rayon Corporation, Utica, N. Y., a '
corporation of Delaware
'
Application September 17, 1945, Serial No. 616,933
'7 Claims.
1
My present invention-relates to a funnel for
spinning rayon and more particularly to such a
funnel construction as may be-of peculiar utility
and advantage in the pot spinning process for
viscose rayon in which such a funnel is vertically
reciprocated by a traverse mechanism and oper
ates in conjunction with a spinning pot wherein
(01. 57-71;)
of the bath, which’have a chemical erosive action
upon the glass. ,
The thread passing through the funnel also has
a physical abrading action upon those portions of
the funnel with which it comes into contact, par
ticularly the tip portion thereof, this being accen
tuated when so-called “chalk luster yarn” is be
ing made. This yarn is delustered by the ad
mixture with the material of which the yarn is
the rayon thread is collected as it is formed.
It hasbeen customary in the prior art to con
struct funnels of this'kind from a single integral 10 made of a quantity of very fine particles of pig
body of glass formed to provide certain constrict
ment. This pigment, which is usually of an in
ed portions at spaced intervals along the stem of
organic nature, increases the abrading action of
the funnels and a constricted portion at the tip
the thread on the funnel and also causes an in
or lower end thereof. These glass funnels are
creased fraying action on the thread due to pas
relatively cheap, but are objectionable from cer 15 sage over a rough surface of the funnel. '
tain points of view. In the ?rst place, being of
For all these reasons it has been found‘ that
glass, they may be shattered in use and particles
' glass funnels do not stand up in practice except
of broken glass get into the spun cake, damaging
for a‘ relatively short time in a condition such
_a substantial amount of yarn or thread being
that they will not in effect injure or sometimes
formed. Furthermore, as they are formed as a 20 even cause breakage of the thread or yarn. Fur
one-piece body, it is dif?cult to clean the interior
thermore, roughnesses in the interior of a funnel
thereof thoroughly, which must be .done from
may cause substantial difficulty in the “piecing
time to time. This condition arises frequently in
commercial operation due to the accumulation of
up” of the unit. Some‘of these difficulties are
caused by the presence of rough portions so slight
foreign matter inside the funnel itself, which 25 as to escape observation upon even fairly care
matter is reddish in color, so that it is conven
ful inspection. Furthermore, as the glass funnels
tionally termed a “red deposit.” The exact char
now conventionally used 'in the art are all in one
acter of this deposit is not known, but it is sus
piece, the inside thereof is not readily accessible
pected that it is to a substantial part at least
for cleaning. Also, any one portion of a one
composed of sulfur and certain lead salts which 30 piece glass ’funnel, which may be worn or other
are formed by the reaction of some of the chem
wise damaged as aforesaid, will require the re
icals of the spinning bath upon the lead lining of _ placement of the entire funnel.
the container for that bath. However, irrespec
It has been proposed, for example, in the pat
tive of its exact character or chemical composi
ents to Haley Nos. 2,320,598 and 2,320,591, both ticn, it is a source of trouble in commercial op 35 granted June 1, 1943, to form funnels'for this
eration and must periodically be cleaned outof
same general purpose in various sections or por
the funnels being used before this accumulation
tions, so that the portions thereof may be re
moved and replaced without requiring the dis
is permitted to cause actual and substantial dam
age to the thread being formed. 'This cleaning
carding of the entire device. However, even in
operation is of a quite drastic character, and 40 these structures, accessibility to the interior por
normally includes both mechanical cleaning and
also the treatment of the parts to be cleaned with
tions is quite di?icult, and there is an absence of
‘internal streamlining, which is one of the objects
‘ of the present invention.
suitable chemical solutions. Furthermore, dur
A primary object of the present invention,
ing thenormal operation of the device in the
“piecing up” or initial starting of the formation 45 therefore, is to provide a funnel of the character
of a new cake, it is usual to eifect the passage of
described, which is made up of a plurality of
parts, so constructed and arranged that they can
the thread through the funnel by washing a loose
be taken apart, inspected, easily and thoroughly
end of the‘thread downwardly by the use of a
cleaned, and individually replaced as may be nec
small cupful of the spinning bath. Thus the in 50 essary,
.
terior of the funnel is subjected at this time to
A further and more detailed object of‘ the pres
the acid of this ‘bath. Furthermore, during the
ent invention is to provide a funnel made up of
continuous operation of the unit with which the
parts,.which are individually of erosion and wear
funnel is being operated, the thread carries along
resistant materials including particularly an
with it some of the acid and/or other chemicals 65 outer-tube forming the stem portion of the funnel
2,411,049
- 3%
which is made up of a plurality of portions mat
ing longitudinally so that when these portions are
disassembled, the several parts may-be easily ac
cessible for thorough inspection, cleaning, re
placement, or repair.
.
'
a
‘ ing of the portions 2 and 3, ‘or may be cut therein . '
in any suitable manner. In the form shown in
Fig. 1, for example, it is contemplatedthat the
inserts B will be secured in the associated recesses
5 preferably by means of a suitable cement, al
though this is not always necessary, and in some
instances may be wholly omitted if desired. If
A further object of the present invention is to
provide a funnel construction as above generally
‘set forth, wherein there is provided a tip insert
of material resistant to both the chemical erosive
' such cement is used, the amount thereof should
to the physical abrasion incident to such use; and
bly of the parts, the cement will not be squeezed‘
into the space intended to be free within the
v‘be less than that required to cover‘ the outside
action to which it may be subjected in use and 10 surfaces of the inserts 6, so that‘upon the assem
- wherein provision is made for holding this tip in;
sert rigidly and non-rotatably in the lower end
portion of the funnel.
funnel, and through which the thread passes. '
In Fig. 4 there is shown a modi?ed form of this -
,
Other and more detailed objects of the present 15 construction, wherein there is provided a relative
thin layer 8 of material, preferably of ‘a resilient
invention will become apparent from the follow
character such as rubber, around the inserts 6,
ing specification and appended‘ claims, when
separating them from the bottoms of the recesses
taken in connection with the accompanying
5 and insuring the holding of the inserts 6 rigidly
drawing, inv which:
but resiliently in a desired position within the
Figure 1 is a view in longitudinal central sec 20
tion showing a funnel constructed in accordance , portions ‘2 and 3.
1
Associated with the upper end of the funnel of
Fig. 1 is a substantially conical mouthpiece gen
Figs. 2’ and 3 are views in transverse section of
erally indicated at 9, and ‘having a depending
the embodiment of the invention shown‘in Fig. 1
~sleeve
H) for containing and holding together the
25
respectively on the lines 2-—2 and 3-3 thereof;
upper ends of the portions 2 and 3. If desired, a
' Fig. 4 is a fragmentary view similar to a por
small amount of ‘cement may be applied onto the
tion of Fig. 1, showing a modi?ed form of means
outside of the upper portions 2 and 3 to'be re
for positively holding one of. the inserts in its
ceived within the sleeve ill. The mouthpiece 9
desired position;
Fig. 5 is a fragmentary view similarto the lower 30 further has a‘ portion H adjacent to the lower
end of the conical portion- thereof and de?ning
with the present invention;
end portion of'Fig. 1 showing a modi?ed con
struction ; i and
the minimum diameter opening at H as substan
1
tially the same diameter as the inside diameter
of the tubular member ‘I. In the form shown,
Fig. 6 is a view similar to Fig.5 showing a
further modi?cation.
'
Turning now to the accompanying drawing, 35 this portion ll also serves as the upper end of '
the recess 5 for receiving the uppermost of the
inserts 6 and extends over the upper ends of the
members 2 and 3. The mouthpiece 8 may be of
provided a funnel having an outer tubular mem
any suitable material, such as that of which the
ber generally indicated at i. This member com
members 2 and 3 are constructed as aforesaid.
40
prises a plurality, in this case two, portions 2 and
At the lower end of the funnel there is posi
L7 mating longtiudinally on a central longitudinal
tioned atip insert H, which has an external ?ange
piane as indicated by‘ the division line or plane ii.
M at its upper end adapted to be received in a
The ‘portions 2 and 3 of the member 8 may be
suitable annular groove, shaped to correspond
formed independently as by molding, or may be
formed by cutting a tube of suitable material . 'with the shape of the ?ange M and to bind upon
this ?ange to hold the tip insert i3 rigidly in
along the linear plane A. These portions are
the
lower end of the portions 2 and 3. In order
preferably formed of some suitable acid-resistant
to prevent relative rotation between the tip insert
material such as a laminated phenolic resinous
and the funnel, it is preferred that the flange M
body.
"
be
non-circular in horizontal contour. This may
50
There are formed in the portions 2 and 3 suit
be effected in any desired manner, for; example,
able, similarly disposed, semi-annular recesses 5,
as by forming this ?ange with a lug l5 thereon
which, when the portions 2 and 3 are in their ' as shown best in Fig. 3, which is received in a
assembledrelation, as shown in Fig. 1, join to
complementarily shaped indentation extending
form annular recesses. Positioned by and within
and particularly Figs. 1 to 3 thereof showing one
embodiment of the present invention, there is
’ these recesses are a plurality of thread-guiding
inserts 6, which may be of any desired suitable
It has been found that the require
ments for these inserts are that they should be
of a material which may be formed or polished
to a, hard, smooth, thread-contacting surface,
and that the shape of this surface should be in
ternally completely convex considered from the
point of view of the center line of the funnel,
that is as seen in a vertical central section such
as that of'Fig. 1, wherein the surfaces in ques
tion are shown at 1. Any desired number of
such inserts may be employed, ‘three being shown
a material.
in Fig. 1.
from the recess receiving the ?ange It.
‘
For holding the parts in assembled relation in
conjunction with the sleeve In, there is provided
adjacent to the lower endof the funnel a collar
IE, which may surround the lower end of the por
tions 2 and 3 and be suitably secured thereto as
by some suitable cement.
The material of the inserts 6 and I3 is prefer
ably hard and abrasion-resistant as aforesaid, and
also resistant to the chemical erosive action of
the acid to which it is almost constantly sub
jected in use and to the chemical solutions to
Furthermore, the con?guration or con
formation of the inserts and the shape and depth
which it may be subjected for purposes of clean
ing. While the present invention is not limited
specifically as to the character of this material,
of the recesses 5 are such that when the parts
it has been found that lava is a suitable material
are in assembled relation, there will be substan
tially no grooves, slots or recesses left open for
the accumulation of foreign matter, so that‘ the
funnel as a whole may be internally streamlined.
The recesses 5 may be formed during the form 75
Referring now to Fig. 5, there is shown a modi
?cation of the construction of the lower end por
tion of the embodiment of Fig. 1, wherein instead
of the collar I6 surrounding a uniform outside di
for making these parts.
_
2,411,049
.
5
6
.
ameter portion of the tubular member I,‘ the lower
end of this member is undercut to receive a col
lar H, which has the same. outside diameter as
the outside diameter-of the tubular member I, so
that when the parts are assembled, there will be
i no non-uniformity in the outside contour of the
tubular member I substantially throughout its
length, or at least throughout that portion there
‘ - having ‘a plurality, of similarly disposed annular‘
‘ recesses, a plurality of thread-guiding inserts po
sitioned in and spaced by said recesses in the as
sembled relation of the parts, a substantially coni
cal mouthpiece having a depending sleeve for
containing and holding together the upper ends
_ of said portions, a tip insert having an external
?ange, an annular recess adjacent to the lower
‘ends of said portions for receiving said external
pot (not shown) with which the funnel is asso
?ange to hold said tip insert rigidly in a predetere
ciated in use. Suchv a construction has several 10 mined‘ position at the lower end of said funnel,
practical advantages as will be obvious to those
and means for holding the lower ends of said por
skilled in the art. The collar I‘! may be similarly
tions and all said inserts in assembled relation.
cemented or otherwise secured to the lower end
_2. A funnel for spinning rayon in accordance
portion of the tubular member I" as above stated 15 with claim 1, wherein said external ?ange of said
for the collar 16. .
tip insert'and the recess in the lower end of said
of which is normally introduced into the spinning
Referring now to Fig. 6, there is shown at I8 a
somewhat di?‘erent form of tip insert, generally‘
portions for receiving saidw?ange are both com
plementarily shaped and non-circular in horizon
equivalent in function to that of the tip insert
tal cross-section, so that said‘ tip insert is non
i3 previously described. In this case the outer 20 rotatably and rigidly secured in the lower end of
?ange, generally indicated at H, is formed in an
said funnel in the assembled position of the parts.
outwardly directed wedge shape as by the pro
3. A funnel for spinning rayon in accordance
vision of suitable frusto-conical portions meeting
with claim 1, comprising in addition, a layer of
at their bases. The groove within which this
resilient material in said ?rst named recessesbee
?ange is received is complementary in shape to 25 tween
said portions and said inserts for rigidly
this ?ange 19. Thus, if there is a slight relief
and resiliently positioning said inserts in such re
between the meeting surfaces of the members 2
cesses in the assembled position of the parts.
and 3 at the plane 4, the gripping action of these
4; ‘A funnel for spinning rayon in accordance
two portions upon their assembly will tend to ac
with claim 1, comprising in addition, an amount
commodate slight changes in the outside diameter 30 of cementitious material only partially covering
of the ?ange ill or the depth of the associated '
the outer surface of each of said inserts and in
groove as by wear or slight irregularities of manu
terposed between such inserts and said portions
facture or otherwise, so' that the tip insert it will
for holding said inserts rigidly in the recesses of
always be rigidly held in its desired position at ' said portions in the assembled position of the
. the lower end of the funnel.
parts.
The rigid and non-rotatable character of the
means for holding the tip insert in the lower end
'
5. A funnel for spinning rayon in accordance
with claim 1, wherein said external ?ange of said
tip insert is formed of two substantially frusto
conical portions meeting at their bases, and
wear out the supporting tube portions 2 and 3 40 wherein the recess adjacent to the lower end of
very quickly.
'
said portions for receiving said ?ange is corre
It has been found that a. funne1 constructed in
spondingly shaped, the parts being so constructed
accordance with the present invention is remark—
and arranged that upon the clamping together of
ably free from various of the diiliculties incident
said portions adjacent to their lower ends, the tip
to the use of prior art constructions, in that the 45 insert will be rigidly and non-rotatably secured in
parts are rigidly held in position as aforesaid, yet
its predetermined position in respect to said fun
the funnel as a whole maybe disassembled for the
nel and slight variations in the diameter of said
adequate and thorough cleaning of all the parts
?ange portion and its associated recess will be
thereof in any suitable and/or conventional man
compensated by the shape thereof.
ner. Furthermore, if some one part becomes
6. A funnel for spinning rayon, comprising an
i of the funnel are of substantial importance, as it
' has been found that a loosely held tip insert will
slightly worn, it may be resurfaced or repolished;
or if that wear is too great, it may be: replaced
without at the same time replacing the entire
device. By reason of the fact that the inserts 6
are'all interchangeable, but one type of replace
’ment inserts need be kept on hand for this pur
pose. Due to the streamlined interior contour of
the funnel, it'has been found possible to “piece
up" the unit with facility in starting the operation
outer tubular member formed of a pair of similar
portions mating longitudinally, each of said por
tions having a plurality of similarly disposed semi
annular recesses, a plurality of interchangeable
thread-guiding inserts positioned in and spaced
by said recesses in the assembled position oi‘ the
parts, a substantially conical mouthpiece having
a depending sleeve for containing and holding to
gether the upper ends of said portions and having
for the making of a new cake of yarn or thread. 60 its lower inner end of an internal diameter sub- ‘
In general, the apparatus speci?cally described ac
complishes all the objects hereinabove stated and
others which are not given in detail.
While there is shown and described but one
principal embodiment of the invention and but
a few“ variants thereof, it is contemplated that
these or further changes may be made by those
skilled in the art without departing from the
spirit of this invention as set forth in the ap
pended claims, which are to be construed validly
as broadly as the state of the prior art permits,
What is claimed is:
,
-
1. A funnel for spinning rayon, comprising an
outer tubular member formed of at least two por
stantially equal to the inside'diameter of said tu-v
bular member, a tip insert having an external
?ange adjacent to its upper end, an annular recess
adjacent to the lower ends of said portions for re
ceiving said external ?ange to hold said tip insert
rigidly in a predetermined position at the lower _
end of said funnel, and. a cylindrical sleeve for
surrounding the lower ends of said portions for
cooperating with said depending sleeve to hold
all the parts in assembled relation.
7. A funnel for spinning rayon, comprising an
outer tubular member formed of two similar por
tions mating longitudinally, each-of said portions
having a, plurality of similarly disposed semi-an
tions mating longitudinally, each of said portions 75 nular recesses, a plurality of interchangeable
2,411,049
thread-guiding inserts positioned in and spaced
by said recesses in the assembled position of the
parts, a substantially conical mouthpiece having.
2. depending sleeve for containing and holding to
gether the upper ends of said portions and hav
and non-rotatably in a predetermined position at
the lower end of said funnel, all said inserts and
all said recesses for receiving them being of such
size and so constructed and arranged that said
funnel, upon the assembly of the parts thereof, is
internally streamlined, an amount of cement only
ing an opening at the lower‘end of the conical por
partially covering the external surface of each of ‘
tion thereof, the inside diameter of which is sub
said inserts applied thereto to secure the parts in
stantially equal to the inside diameter of said tu~
rigid assembled relation, ‘and an annular, sub
bular member when the portions thereof are as
sembled together, a tip insert having a non-cir 10 stantially cylindrical collar member associated
with the lower ends of said portions and cooperat
cular external ?ange, an annular recess shaped
complementarily to said flange adjacent to the
lower ends of said portions for receiving said ex
ternal ‘?ange so as to hold said tip insert rigidly
ing with said depending sleeve in holding said por
tions and said inserts in assembled relation.
.
'
LEO J. MADDEN.
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