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Nov. 12, 1946.
H. o. DAVIDSON
2,411,036
FUNNEL GUIDE MOUNTING
Filed May 16, 1945
INVEN TOR.
Patented Nov. 12, 1946
2,411,036
UNITED STATES PATENT-OFFICE
FUNNEL GUIDE MOUNTING
Hobart 0. Davidson, Swarthmore, Pa., assignor to
American Viscose Corporation, Wilmington,
Del., a corporation of Delaware
Application May 16, 1945, Serial No. 594,096
6 Claims.
(Cl. 757-176)
7
'
2
.
port andto the funnel-holding means and the
surfaces of the joints, between which the adjust
able predetermined pressure is exerted to control
which ?lamentary material, produced in accord
the ease of relative motion at the joints, are sit
uated Well within .the joint so that the parts of
ance with the viscose process, for example, may
the joint protect these surfaces from the in?u—
be led into a spinning bucket in which it is col
ence of foreign matter and corrosion, thereby
lected in the form of an annulus.
_
,
minimizing any tendency of the parts of the joint
The invention is concerned especially with fun
nel mountings of the type shown in Rushton
to bind or to become substantially more di?icult
1,672,691 ‘adapted to swing the funnel into oper— 10 tomove during periods of operation when ex-'‘
posed to such in?uences. Other objects and ad
ative position in the spinning bucket, and to swing
the funnel clear of the bucket when a “cake” of
vantages of the invention will be apparent from
the following description when read in conjunc
?lamentary material collected therein is ready
This invention relates to an improved funnel
guide mounting. More particularly the inven
tion relates to a mounting for the funnel through
fQi' (lemma.
The type of ' ‘mounting
tion with the accompanying drawing, in which
1
of which the present.’
‘invention is an improvement comprises a sup
Figure 1 is a side elevation ‘of the improved
funnel mounting, in which the operative position
port adapted tobe' secured to the traverse rail
is shown in solid lines, and the inoperative posi
of a spinning machine, means for holding the
tion is shown in broken lines;
15
funnel, and two parallel pairs of arms arranged
between the support and funnel-holding means, 20
and pivotally connected to each of them.
In
v
Figure 2 is a plan view of. the improved mount
1ng;_
V
.
V
Figure 3 is a view taken on line III-III of
funnel mountings of the general type described
which have been available prior to the present
invention, the arms connecting the support and
funnel-holding means have been pivotally mount
Figure 2;
a
t
Figure 4 is a detail’ View of a modi?ed joint; I
and
_
.
.
Figure 5 is a view showing a, modi?ed much
va somewhat enlarged scale.
ed on the support and holding means by pivots
which also constitute‘part of the. means for ad
In ‘the drawing there is shown a portion of a
justing the tightness of the joints between the
spinning'bucket. 2, provided ‘with, a cover 3. A
arms and the connected parts. In addition, such
traverse rail 4His provided to impart relative ver
adjusting means have‘ been locatedvin exposed ' tical reciprocal movement between the spinning
positions where they have been subject to cor
bucket 2 and the funnel guide 5 for laying the
?lamentary material in~a series of layers against
rosion by the acid escaping from thevspinning
the inside wall of the bucket. The ?lamentary
material is introduced into the bucket through
Experience has shown that because of the cor
funnel 5 having a stem 6 extending into the
rosive effects of the acid in the neighborhood ofv
the machine, the joints of the funnel-mountings
bucket ‘through aperture 1_ in cover 3.’ ’ The hold
ing means'for the guide 5 comprises a threaded
sometimes tend to become sti? and unworkable
after only short periods of use, and require con
rbushing 12, an extension 9 of a, movablemember
l0, and the nuts 8 for adjustably holding the.
stant readjustment. Further, since the pivots
and adjusting means are interdependent, the 40 guide and bushing in ?xed position on the ex
machine.
'
r
.
constant swinging of the arms on their pivots
has a loosening effect on the joints so that when
tension l?.‘ Secured to traverse rail 4 by bolts
the parts are not used under corrosive conditions
Support I 4 is connected with movable member
l0, of the‘ funn'elrholding means bytwo pairs‘ of
arms [5 arranged in parallel. relation one pair
I3 is a support 14.
and sometimes even when used under such con
ditions, retention thereof in a predetermined tight
but relatively movable condition frequently re
quires readjustment.
V
>
above the other, each pair of arms being piv
otally connected to support Hand movable mem
ber“! by means of pivot pins l5. The, pins l5
,
It is a primary object of the present invention
to provide a swingable funnel mounting which
may extend from bosses or equivalent parts of
functions smoothly and maintains its tightness 50 the movable member I!) and the support it into
at all times over long periods of use. Another
bores within the arms i5, as shown, or they may .
object is to provide a funnel mounting of the type
extend from the arms l5 into recesses formed ‘
within the movable member 10 and the support ,
described in which the means for tightening
the joints is independent of the pivotal means
l4. However, each pin l6 has an end'bearing
connecting the pairs of parallel arms to the sup
55
surface comprising a, surface of revolution. whose
2,411,036
3
4
generatrix is inclined to the axis, preferably con
disclosed herein without departing from the spirit
ical as shown at I’! in Figures 1 and 2, or spher
ical, as shown at llb in Figure 5, which engages
a mating end surface of the bore, such as those
in the arms l5, into which the pins extend, this
engagement leaving clearances (clearly shown in
and scope of the present invention which is not
to be limited except as necessitated by the ap
pended claims.
Figure 2) around ‘the pins l6 betweentheends
I claim:
I. A guide mounting comprising means for
holdingthe guide, a support, and at least one
pair of arms arranged therebetween in parallel
relation, pivotal means connecting adjacent ends
ber I0, thereby avoiding the exertion of any pres~ {10. of ‘the arms with the support and additional piv
of the arms [5i and *‘the adjacent‘face's of sup
port [4 as well as the adjacent faces of the mem
sure between the faces of the arms and the ad
otal means connecting the other adjacent ends
jacent faces of the movable member10~andthe~
oflthe arms with the guide holding means, each
support [4.
The use of a spherical or conical
bearing surface also assurestrue' and-accuratev
of. said pivotal means comprising a pin extending
into .aibore and'having a bearing surface com
positioning of the parts and the-maintenance—of-
prising-arsurface of revolution whose generatrix
such positioning even when light pressure only
is placed upon such bearing surfaces.
is inclined to the axis of the pin in engagement
with alcorresponding bearing surface within the
bore and ‘clearances around the pins and dis
posed between the support and the adjacent ends
The two arms l5 constituting each pair are‘
adjustably joined together by shouldered studs I8
which’ screw into threaded‘ holes I9 in the inner 20 of the arms and between‘ the guide holdingmeans
and'the adjacent ends of'the arms, and means
faces‘of. the arms. The ends of-‘the studs are
independent of the-pivotal connections disposed
threaded oppositely; that is, one end is left-hand
intermediately of eachLpair of arms for adjust
and the other right-hand-so that turning of the
knurled portion intermediate the shoulders tight
ens 0r~ loosens the connection betweenthe stud
and the pair of arms. Gaskets 2ll~such as of
rubber, may be provided between the arms l5'
and the‘shoulders of studs [8. Studs I8, which
in co-operation with the threaded holes in the
sides of the arms afford a ready means of simul
taneouslyeadjustingithe relation of the arms I5
to set the joints in any desired tightness, are
disposed intermediatelyof andindependently of l
the pivotipins l6 whereby the arms are con;
nectcd to support HIV and memberrl ll.v The studs ‘
are readily available for adjustment by the oper
ator.
.
.
a
The pivotal movement of the arms on'the sup
port l4 ‘and member In of'the funnel-holding
ably joining thearms of a pair together.
2. A guide. mounting comprising means- for'
holding the guide,.a support, andat leastone
pair of arms .arranged‘therebetween in parallel '
relation, pivotal means connecting adjacent ends
of the arms withv the support‘ and additional piv
otal means connecting the-other adjacent ends
of the arms with the guide‘holding means, each
of said pivotal means comprising a pin extending
into a'bore and‘ having a terminal bearing sur
face comprising-a surface of revolution whose
'generatrix is inclined torthe axis of the pin in ‘
engagement with a corresponding bearing sur
face within and adjacent the bottomv of the bore '
and clearances around the pins and disposed be
tween the support and-the adjacent ends of ‘ the
arms and between the guide holding means and
means does not ‘affect the studs or exert friction
the adjacent ends of the arms, and-means inde
thereon, causing undue wear or loosening thereof,‘
pendent of thepivotal connections disposed in
and the parts are retained in the adjusted posi
termediately of each pair of arms for adjustably
tion until changed by the operator. The bearing
joining the arms of a pair together.
surfaces IlV-of the pivot pins which control the
3. A guide mounting comprising means for
ease of‘manipulation of- the jointare entirely 45
holding the guide, a support, at least one pair of
enclosed within the arms or within support I 4
arms arranged therebetween in parallel relation,
and member 10 and are not ' affected‘ by acid
pivotal means adjacent ends of the arms with
escaping from the spinning machine, so that the
the support‘ and additional pivotal means‘con
arms remain as freely swingable as when orig
inally, adjusted over» an inde?nite period of ‘time 50 necting other adjacent ends» of the arms withrthe
guide holding-means, each of said pivotal means
and the funnel .mounting does not become stiff
comprising a pin extending into a bore and hav
or unworkable. The funnel mounting may- be
ing a bearingsurface comprising a surface of '
constructed in its entirety of anysuitable acid
revolution whose generatrix is inclined to the axis
resisting material,such as a resinous material .of
the, type of Bakelite or- Durez, for instance and, 55 of the pin in engagement with the corresponding
bearing surface within the bore and clearances
preferably, pivot pins are molded orotherwise
around the pins and disposed between the support
formed integrally with the arms 15 or members
and the adjacent ends of the arms and between
I0 and I4;
the?guide holding means and the adjacent ends
Figure 4 illustrates amodi?edjoint in which
the pivot pinrl?a extends from the inner surface 60 of ‘the arms, means disposed intermediately of’
and independently- of the pivotal means for ad
of arm l5 into a bore within the member H! (or'
justably connecting the arms of‘ each pair to
supportld). The pin [6a has a. flat end surface
gether, said connecting means comprising oppo
Ila which bears against .a corresponding flat bot
sitely-threaded studs co-operating with corre
tom surface. atthe end of the bore, leaving a
clearance» between the, adjacent surfaces on armT ' spondingly threadedv bores in the arms.
4. A guide mounting comprising .means for
l5 and member I 0 (or support I4). The ?at
holding theiguide, a support,- two pairs of arms
surface I larmayrbe considereda surface of- revo
arranged therebetween in parallel relation one
lution generated by a line inclined atright‘angles
pair above the other, pivotal means connecting
tothe ‘axis. If desired, a smaller bore or recess
Heb may be made in the'end of the large bore 70 adjacent ends of-~ the arms with the support and
additional~ pivotal .means “connecting vthe other‘
to facilitate separation'of the parts when it is
adjacentends of the armswith the guide holding r4
desired to dismantle the mounting structure.
means, each of said pivotal’ means comprising .a.
Figure 5» shows a pin I6 having an end bearing‘
surface llb of spherical character; ‘
pinextending into-a'bore andwhaving a conical
Modi?cations may be made in the apparatus 75 bearing surface adjacent its end in engageme
2,411,036
with acorres'ponding conical bearing surface ad
adjacent ends of the arms, and means independ
ent of the pivotal connections disposed interme
jacent the bottom of the bore and clearances
diately of each pair of arms for adjustably join
around the pins and disposed between the sup
ing the arms of a pair together.
port and the adjacent ends of the arms and be
6. A guide mounting comprising means for
tween the guide holding means and the adjacent 5
holding the guide, a support, two pairs of arms
ends of the arms, and means independent of the
arranged therebetween in parallel relation one
pivotal connections disposed intermediately of
pair above the other, pivotal means connecting
each pair of arms for adjustably joining the arms
adjacent ends of the arms with the support and
of a pair together.
5. A guide mounting comprising means for 10 additional pivotal means connecting the other
adjacent ends of the arms with the guide hold
holding the guide, a support, two pairs- of arms
ing means, each of said pivotal means compris
arranged therebetween in parallel relation one
ing a pin extending into a bore and having a
pair above the other, pivotal means connecting
?at bearing surface adjacent its end in engage
adjacent ends of the arms with the support and
additional pivotal means connecting the other 15 ment with a corresponding ?at bearing surface
adjacent the bottom of the bore and clearances
adjacent ends of the arms with the guide hold
around the pins and disposed between the sup
ing means, each of said pivotal means compris
port and the adjacent ends of the arms and be
ing a pin extending into a bore and having a
tween the guide holding means and the adjacent
spherical bearing surface adjacent its end in en
gagement with a corresponding spherical hear 20 ends of the arms, and means independent of the
pivotal connections disposed intermediately of
ing surface adjacent the bottom of the bore and
each pair of arms for adjustably joining the arms
clearances around the pins and disposed between
of a pair together.
the support and the adjacent ends of the arms
HOBART O. DAVIDSON.
and between the guide holding means and the
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