close

Вход

Забыли?

вход по аккаунту

?

Патент USA US2115079

код для вставки
April 26, 1938.
s. c. LILLEY ET AL
559,115,079
METHOD AND APPARATUS FOR COATING STRANDS WITH FLOCK
Filed June 15, ‘1955
4 Sheets-Sheet 1
//7.
April 26, 1938. .
s. c. LILLEY-ET AL
2,115,079
METHOD AND APPARATUS FOR v-COATING STRANDS WITH FLOCK
Filed June 13, 1935
/27
.
‘
_
_
4 Sheets-Sheet 2
‘
‘
AP!!! 26, 1938.
“ s. c, L||_|_EY Er AL
2,115,079
METHOD AND APPARATUS FOR COATING STRANDS WITH FLOCK
Filed June 13, 1935
4 Sheets-Sheet 5
al 2-9m
Wit’,
37
i”?
w
4
My
.»a22x-2_://WWawm.?m,z
3Z
/_ _o-.
Z
,
M4-.
O Q O 7wmo 0 m?woi vmo?w iom?
i“Z
.
|
APT“ 26, 1938.
s. c. LILLEY El‘ AL
‘2,115,079
METHOD AND APPARATUS FOR COATING STRANDS WITH FLOCK
v
/36
Filed June 15, 1935
4 Sheéts-Sheet 4
/<Ley°%%/3q‘
/33 33¢
6" A36
f
0441-- ?‘ ':
o
_
03¢
\ 5
B5
'
'
»
‘*4;
(
/
>
42%
J
/3/
/32
20
Z/
,
»
/73
'
m7
?y. 75;
a
/‘7/
/ya
'
,.
.
/3
2,115,079
Patented Apr. 26, 1938
‘ UNITED STATES
‘
(PATENT OFFlCE
2,115.07,
I METHOD AND APPARATUS FOR COATING
. STBANDS WITH FLOCK
' 4 Samuel 0. Lilley,
and Maltby s. Fowler,
New Haven. Coma, asslgnors to The Ameri
- can Mills Company, West Haven, Com, a cor
potaticn
“alumni-“M13. v192.5, Serial No. 26,853
13 Claims. (CL 91-8)
This invention relates to improvements in
methods and apparatus for coating strands with
flock, and more particularly to coating. elastic
strands with ?ock.
Ol
.
_
Fig. 14 is a sectional'perspective view of a
modi?ed form of the invention; and
~
One object of this invention is to provide an
improved method and apparatus for providing
strands with a coating of flock of maximum
uniformity and perfection.
Another object of this invention is to provide
10 an improved method and apparatus for coating
strands with ?ock at maximum speed and mini
mum cost.
Another object of this invention is to provide
improved apparatus for coating strands with
15 ?ock, the apparatus being 01' maximum simplicity
and durability and of minimum cost.
With the above and other objects in view,‘ this
invention includes all improvements over the
20
‘Fig. 13 is a vertical sectional view on a re
duced scale, on line |3-l3 of Fig. 2; .
prior art which are disclosed in this application.
In the accompanying drawings, in which cer
tain ways of carrying out the invention are
shown for illustrative purposes:
Fig. 1 is a schematic sectional elevation of ap
paratus for coating elastic strands'with ?ock in
25 accordance with this invention;
Fig. 2 is an enlarged view similar to Fig. 1, of
v
Fig. 15 isa sectional perspective view of an
other further modi?ed form of the invention.
In the description and claims, the various
parts of the apparatus and steps of the method
6
.
are identified by specific names for convenience,
but they are intended to be as generic in their 10
application as the prior art will permit.
Referring to Figs. 1 to 13 of the drawings, the
support 20, which may, for example, be a table.
may support the main portion of the mecha
nism, although it will be obvious that the various 15
parts of the mechanism may be supported by any
suitable means.
a
7
An adhesive-container or tank 2| (Fig. 2) is
secured in an opening 22 in the table 20 by any
suitable means, such, for example. as by turn
buttons 23, 24. The tank 2| has a top-plate 25
removably held in place by screws 23, and a bot
tom-plate 21 removably held by screws 28 which
also serve to clamp in place, a gasket 23 of suit- '
able material having a rectangular opening. The ,
top-plate 25 has a top rectangular opening 33 in
which is removably seated a top die-member 3|
Fig. 3 is a fragmental, vertical, sectional view formed of two parts 32, 33 (Fig. 6) connected byv
dowel pins 34 secured in one of the die parts, and 30
on line 3-4 of Fig. 1; ,
~
which dowel pins have a sliding ?t in holes in the
Fig.
4
is
a
horizontal
sectional
view
on
line
30
other of the die parts. The meeting edges of the
4-4 of Fig. 3;
Fig. 5 is a vertical sectional view on a reduced die parts 32 and 33 have aligned grooves to form
holes or openings 35. The bottom-plate 21 has a‘.
scale, on line 5-5 of Fig. 2, with the brush maln
bottom rectangular opening 36 in which is remov
ly in elevation;
ably seated a bottom die-member 31 formed of 3o
Fig. 6 is a horizontal sectional view on a re
two parts 33, 39, connected by dowel pins (not Q 3
duced scale, on line 8—5 of Fig. 2;
Fig. 7 is an enlarged horizontal sectional view shown) similar to the dowel pins 34 (Fig. 6) and
having aligned grooves to form holes or openings
on line 1-1 of Fig. 1;
~
Fig. 8 is a greatly-enlarged horizontal sectional 38‘. The bottom die 31 has a bordering ?ange
a small portion thereof;
40
.
40 which serves to clamp in place, a gasket 4| of 40.
‘any suitable material having a rectangular open
ing. The bottom die 31 is removably clamped in
container;
Fig. 9 is a similar view of the rubber strand place by any suitable means, such as turn-but
‘just above the exit-openings in the top of the tons 42 (Fig. 13).
The ?ock-applying mechanism is generally 45
adhesive-container, and with a coating of ad
designated as 43, and includes two ?ock-holding
hesive surrounding the rubber strand;
Fig. 10 is a similar view of the rubber strand chutes 44, 45, at the lower ends of the downward
ly-enlarged or ?ared portions 48, 41 on which are
higher up after a coating of ?ock has been ap
view'through a. rubber strand just above the en
trance-openings in the bottom of the adhesive
plied;
located feeding or feed-regulating brushes 43', 43',
Fig. 11 is a similar view of therubber strand
still further up after the adhesive coating has
?owed to a coating of more uniform thickness;
Fig. 12 is a similar view of the rubber strand
adjustable by screws 52 down ‘and up, toward
and from woven-wire ‘or other typegscreens 53,
54, secured .to theremovable bottoms T55, 56 .re-' ‘_ _
after the solvents have evaporated out of the
55
adhesive;
1
rotatably mounted in bearings“, 5| (Fig. 5),
spectively of each’of the chutes 44, 45.
Beneath the chute-bottoms“. 56 are air-ducts
so
‘5
" '
2.
9,115,079
a of the tank 2|, the tank being empty and the
51, u. Air-duct it extends horizontally and
dies Ii and I1 being removed, and down around 7
' directs air against bafde a which latter de?ects
the roll II, and has the grip-end connected to
the air against baiile 80, which latter de?ects
air against baffle 6|. Air-duct ll extends hori
the free ends of the. strands Ill. ' The grip-end '
' zontally part way, then angularly upward and
is then passed over the top of the separator H3 >
and the strands are passed between the teeth of '
directs air against ba?ie 62, which latter de?ects
air against thelower left bathe-portion” of the
the separator ill, and the threading-band is
then drawn upwardly to cause the strands ill;
upwardly-extending ~air-duct N which has its
opposite sides ‘I, ll of undulating form.
to pass upwardly through" the openings It,"
The upper portion of air-duct N has the sides of the tank It, through duct 84, through slot 10
10 83, I6 sloped respectively at 61, II to, provide , III, through opening 8|, between the "teethof.
exits 8!, ‘II which lead respectively to'the cham
separator Ill, around roll 90, between the teeth
motor-driven, suction or vacuum-producing fan ,
between the teeth of separator Hi,’ and to a
receiving-box H1 having a separate compart
bers ‘ll, 12, which inturn lead to the exhaust of separators ill and Ill, around drum 94, be
tube or pipe 13, which in turn is connected to a tween the teeth of separator H5, over drum l8,
16
or pump ‘I4, which vdraws air from pipe "I! and
forces it into the porous cloth bag ‘II through
ment for each strand i 01. The threading-band .
is then disconnected from the strands ill.
' which the air escapes. The upper rear wall-por
tion It prevents direct passage of air from the ' . The two parts of lower die vs1 are brought to-~' 1
air-duct II to exhaust-pipe ‘I3, thus compelling gether with the strands ill in the grooves form 2o’
the air to move with less violence through the ing the'openings I9- and the die I‘! is then se
i- lateral exits {0,10 and throughgthe chambers cured in place in thebottomof tank 2|. The '
‘II, ‘If to pipe 113., A damper or regulator 11 may tank “is disconnected :from'the table 2| and
be used to provide aconvenient" way of regulat ‘loweredv therefrom, and the two parts of upper, '
ing the degree of suction or volume of air pass-V die ii are brought together with the strands in '
ing through the air-ducts.
I
_
'
- the, grooves forming the openings}! and the die 7
v
A drying-chamber, generally designated as ‘It.
preferably has heated-insulated vertical sur
rounding-walls '18. The drying-chamber ‘Il may
be provided with any suitable heating means, as
for example, a bottom-grid 80 having two main
openings 8|, 8! and a relatively-large number
of smaller openings ll, all of which openings
extend entirely up through the grid and which
openings have continuous walls so as to make‘ a
closed inner-chamber 84 in'the grid, in which a
' heating'imedium such as steam, for example, can
be supplied by meansof the lead-in and lead-out
pipes II, II. The two opposite inside walls '1,
II are of undulating form. , ‘A pipe or ?ue IO
‘ leads from the upper end of the heating-chamber
‘II to the outside atmosphere.
_ _
_
,
r
A roll or drum 8| vis pivotslly mounted in the
upper part of the chamber 18 and is driven by
gearing and shaft OLwhich-in turn is driven by
gearing and the vertical shaft '2.
‘Shaft 82,
through shaft 93 and gearing, drives the roll N. e
A belt‘ 95 connected with the roll ll or a pulley
thereon, serves to drive the roll 90.
II is then dropped or pushed down in place in
the top'of tank 2|, after which the tank is again
secured to the under-side of the table by the turn
buttons 28, 2|.
'
V
7
Adhesive solution II. is then poured into the
tank I! through the, filler-tube ii! until the
adhesive solution is visible in the open end of
the tube III to ‘bring the general level of the
adhesive in the tank 2! to approximately that. 35
indicated by-the line I ll. The open end of the '
filler-tube I ll ‘thus affords visual means for de
termining when more adhesive should be added.
The adhesive solution may consist of rubber in
tex, water-dispersed rubber, natural rubber so;
lution, synthetic rubber solution, etc., with or
without vulcanizing material, vulcanizing accel
erators, fillers, pigment, etc. One adhesive so
lution which has ‘been found satisfactory con
sists of approximately twenty per cent rubber, 45
twenty percent ?ller, pigment and vulcanizing -'
materialnand the balanceivolatile rubbergsolw
vents.
'
'
I
a suitable quantity of fibrous ?ock m formed
The vertical shaft'?, through gearing and from material such as cotton, rayon, Wool or other 50'
shaft
over gears
81, drives
I00, IOI.
the roll
ill! serves
98. A to.
chain
drive0!the feed
brushes ‘I, 49. The vertical shaft .2 is driven
_ suitable fibrous material, is put into the flock
Heat is turned on in thetgrid‘ in and suction- ,
pump ‘I4 and motor I“ are started. This results
by pulleys and belt I08 from motor I“.
The apparatus is adapted to coat any number
of strands from one up to eighty or more sihjiiil~
taneously. A supply-reel or reels llll is mounted
to rotate on a shaftvor bar lit-and contains
strands ill, preferably elastic strands of “rub
in the; strands I)! being fed upwardly ‘through
the bottom die-openings it‘, which openings do
not need to closely ?t‘the surfaces of the rubber
strands as the thickness or viscosity of the ad
hesive solution prevents leakage down past the
her or the like, and of square,.round or other ; strands. As the strands pass up through the ad
suitable cross-sectional shape. The strands are hes'ive solution H8, they draw the solution up‘
preferably of a size adapted to be woven'orr vasiat I22 and as the strands pass up through the
top die-openings II, a quantity of rubber adhesive
knitted.
The multi-toothed,
'
'
r
,b-like. strand-separa
tors I", III (Pig. 1) maybe pivoted at III, "I
‘ to, be swung into and outldf strand-separating
position. With the separators m, it! swung
out of the way, a threading band or cord (not
shown) having grin-means on ‘one end, such as
a cardboard or ?bre strip having properly-spaced
strand-gripping- slits, adapted tov grip the free
ends of the strands I", has its grip—end passed
down over theroll ll, through the slot H2 in
the top of the duct 64, down through the duct 64.
down through the top and
0pm)‘,
solution III coats and adheres to the strands I01.
As the strands coated with adhesive emerge
from the top die-openings ll, ?ocking starts vto
occur.
‘
" 'I‘he'rotating brushes ll, 49 feed ?ock l2l down
through the ‘screens 53, I4 and the air being
drawn into the air-ducts 51. 'll carries the par-Q
ticles of flock forward. The ?ock-chargedlair-g
current I“ passing along air-duct II strikes and’
passes around the adhesive-coated strands ll‘l,
resulting in ?ock particles [2! (Figsrlo, 11‘, 12)
sinking more or
deeply into the soft adhesive 1a _
' 2,115,070
coating I22 on the strands. As the ?ock-charged
air-current I24 proceeds onward, it strikes the
baiile 59, whereupon it is de?ected back and again
strikes the strands to add more ?ock particles to
the coating on the strands. The ?ock-charged
air-current I24 then strikes baf?e 69, whereupon
it is de?ected back andvagain strikes the'strands
to add more ?ock particles to the coating on the
strands. The ?ock-charged air-current I24 then
10 strikes ba?ie 9|, whereupon it is de?ected back
and again strikes the strands to add more ?ock
particles to the coating of the strands.
-_
In a similar way to the movement of the ?ock
charged air-current I24,- another ?ock-charged
15 air-current I26 passes in through air-‘duct 61 and
curtain material which is glazed and'givesa low
er degree or coe?icientof friction than plain
cotton cloth, in order to permit slippage of the
rubber strands, if need be. Rolls 90 and 94, in
stead of‘ being covered with Holland cloth, may
be of wood coated with varnish.
Rolls 99, 99 and 94 are so driven-that they ro
tate at the same surface or peripheral speed, thus
avoiding substantial stretching of the rubber
strands during the ?ock-applying process. The 10
roll- 96 has greater surface speed than roll 94 to
keep the strands fairly taut between rolls 94 and
99. slippage of the strands on roll 96, if it occurs,
does no harm.
If, however, it isv desired to produce ?ocked 15
by alternate de?ection by baiiles 62 and 62, strikes
the strands alternately on opposite sides to add
strands of lesser stretch characteristics, then the
surface speeds of‘ the various rolls can be driven
‘ more ?ock particles to the coating on the strands.
at such relative speeds as to maintain a desired
After the two ?ock-charged air-currents I24 amount of stretch in the strands while they are
20
20 ,and I26 pass up beyond ba?ie 6I, they merge into being coated and dried.
After the strands I 01 have completely unwound
a single ?ock-charged air-current I21, and the
undulated sides 65, 69 of the air-duct 64 act as oi! the-supply-reel I05 and before the ends have
baiiies to alternately de?ect the upwardly-move _ moved up to the bottom die 31, the motor I04 and
ing ?ock-charged air-current I21 back and forth vacuum-fan "I4 are stopped, thus stopping the
to alternately strike opposite sides of the strands whole machine. The strands I01 are now out at 25
and add more ?ock particles to the coating on a location between the upper roll 90 and the slot
H2, and the upper ends of the cut strand-pieces
the strands and also absorb the “bleed” of the ad
extending up through slot I I2 are connected to a
hesive through the ?ock coating. The Elli-188k
age slits I29 permit air to be sucked into the threading cardboard carried at the lower end of
?ock-charged air-currents I24, I26 at locations
which aid in preventing ?ock being deposited on
the baffles.
.
.
As an adhesive-coated portion of a strand
passes up away from the top die-member SI, the
adhesive coating I 23 (Figs. 9,-10) gradually tends
to. conform to the cross-sectional form of the
The cork or plug I28 (Fig. 13) is removed from 35
tank 2i to empty the‘ tank of adhesive, and the
tank is then released from table 20 by means of
strand (Fig. 11) and gradually dries until ?nally
it becomes substantially thinner (Fig. 12).
the turni-buttons 23, 24, whereupon the tank 2|
By the time the strands have reached the open
is lowered to result in the lower ends ‘of the cut
40 ings or exits 69, 10 at the top of the air-duct 64,
'45
a band or cord (not shown) for threading over 30
the rolls 90, 94, 96, as previously described. The
roll 96 may be rotated by hand or otherwise to
bring the remainder of the strands above the cut,
into the compartments of the box III.
strand-pieces passing up through the dies 31, ii. 40
the strands have acquired all the ?ock that can
adhere to them. The ?ock-charged air-current
I2‘! is prevented by the upper rear wall-portion 16
from directly entering the pipe ‘I9, but is com
pelled to divide into two oppositely-moving cur
rents which pass through exits 99, 10 with a min
A second adhesive tank like tank 2|, and empty of
adhesive, but. with strands from a new supply
reel threaded up through both the bottom and top
?ock accumulated on the walls to become de
removed for placing in the vulcanizer. The sec
dies of the second tank is now brought to a posi- -
tion adjacent the lower ends of the cut strand 45
pieces hanging down below table 20. The upper
imum disturbance of the strands, and through ' ends’ of the new strands and the lower ends of the
pipe 12 and vacuum-fan 14 into the porous bag corresponding cut strand-pieces are respectively
16 where the ?ock is collected while the air passes tied together, and the threading. cardboard is
out through the pores of the bag ‘I5. It may be then pulled over the rolls 99, 94, 96 until the new 50
upper strand-ends reach a second box I", the
found desirable to strike, or have power mecha
nism strike, the bag ‘I6 at intervals to cause the ?rst box III with ?ocked strands having been ,
tached and drop to the bottom of. the bag and ‘ 0nd tank is now secured to the table ‘20 by the
tum-buttons 22, 24 and is then ?lled through 55
55 free the pores to the more free passage of air.
The ?ock which is recovered in bag ‘I6 can be tube 'II9 to the proper level with adhesive solu
tion, ready for ?ocking the second set of strands
put in the chutes 44, 46 for use over again.
After the strands are fed upwardly through the in the manner previously fully described.
While the strands are being ?ocked, quantities
slot or opening "2 at the top of air-duct 64,
they-pass up through opening, M in the heated of ?ock can be added from time to time to the 60
grid 90, over roll 90, down through grid-opening chutes 44, 45, and although the lower portions
of the chutes are downwardly flared or. enlarged to
92, under roll 94, over roll 96, and into the indi
vidual compartments in the box I IT. The heated
air which passes up through openings 6|, 92; 93
65 is given a back-and-forth motion transversely of
the strands by the undulating walls 91, 98 01' the
drying—chamber 18 to thus more rapidly dry the
solvents out of the rubber adhesive, which sol
vents, in the form of vapor mixed with the air,
70 pass through pipe .69 to the outside atmosphere
for safety, as the solvent vapors are likely to be
in?ammable.
Rolls'99 and 96 may be covered with cotton
sheeting to give suitable friction-surfaces, and
75 rolls 90 and 94 may be covered with Holland cloth
minimize any tendency to clock or “bridge over”
the brushes, nevertheless, on account of the light,
?brous nature of the ?ock, it is preferable not to 65
put too much ?ock in the chutes at any one time,
but instead, to add small quantities at more fre
. quent intervals.
Instead of using the bag 15, the upper ends of
?ock-chutes 44, 49 may each be provided with an‘
extension provided with a pair of sliding or piv-‘
oted shut-offs or dampers, and each extension-1'
may have a porous bag connected to it, both bags '
being connected to one or two vacuum-fans as
desired. - The dampers of each pair are arranged 75
4
8,115,079
one above vthe other an! may be interconnected with flock. including: stretching an elastic strand;
by mechanism so that as soon as one is completely
closed, the other opens. They may be actuated
by hand or by power-driven mechanism. Also,
if desired, mechanism may be provided, either
hand or power-actuated, for striking the bags
to loosen the flock from the walls thereof, at
intervals. Thus, by the successive actuation of
the two dampers of each pair, when the upper
damper is first opened, the flock accumulated
rendering the surface of thestrand adhesive;
and applying flock to the adhesive surface of the
strand while stretched by causing two currents
of ?ock-charged air to,surround and move in
opposite directions to one ‘another across the
strand.
.
-
'
.
3. 'I‘he'method of coating a strand with ?ock,
including: applying a coating of liquid adhesive
to the surface of the strand; feeding the strand 10
thereon is dropped onto the closed lower damper, approximately vertically axially of itself; and
then the upper damper is closed to .shut off the applying flock to said coating of adhesive by
air-pressure from the lower damper andthe latter means of a suction-produced current of ?ock
is opened to drop the flock into the chute below charged air caused to move back and forth across
‘
~
.
15
15 vit, whereupon the lower damper is again closed. said strand.
4. Apparatus for coating a strand with ?ock,
This cycle being repeated it any desired intervals.
Inasmuch as only a very small percentage of including: means for feeding a strand approx
?ock from the flock-charged air adheres to the imately 'axially of itself during a portion of its,
strands, it will only be necessary to occasionally travel; means for rendering the surface of the
add new ?ock to the ?ock-chutes, which can be axially-moving portion of the strand adhesive; 20
done through normally-closed openings provided and means for charging ‘a current of air with
?ock and causing said current of ?ock-charged
in the sides of the flock-chutes.
. In the form of the invention illustrated in Fig.
14, strands Ill'l to be ?ock-coated, extend ver
tically up through the adhesive-tank II and up
through a bailled air-duct I30.‘ Enteringthe air
duct I30 in opposite directions, are air-ducts I3I,
I32 which respectively lead from spray-guns III,
I“. Free-air openings I33‘ and I34‘ are pro
vided at each side of the spray-guns I33 and I".
Each spray-gun has a ?ock-supply tube I3! and
a compressed-air-supply tube I36 by which flock
charged air is fed under pressure into and through the air-ducts Iii, I32 to coat the strands'with
air to surround and move back and forth across
the axially-moving portion of the strand.
5. Apparatus for coating a strand with ?ock,
including: means for feeding a strand approx
imately axially of itself during a portion of its
travel; means for rendering the surface of the
axially-moving portion|__;of, the strand adhesive;
and means for,_chargi'ng two'currents of air with. 30
?ock and causing said currents .of ?ock-charged
airto’surround and move in opposite directions
across the axially-moving portion of the strand.
' 6. Apparatus for coating a strand with ?ock,
?ock in a manner similar to that described con
including: means for feeding a strand approx 35
cerning Figs; 1 to 13. The remainder of the
imately vertically axially of itself during a portion I
apparatus can be similar to that shown in Figs. of its travel; means for coating the surface of‘ the
1 to 13. If desired, vacuum or suction apparatus, axially-moving portion of the strand with adhe
such, for example, as ‘I3, 14,- ’II of Fig. 1, may be sive liquid; and means for charging two oppo
sitely-directed currents of air with flock and caus
40 used in conjunction with the pressure spray
. ing said currents of ?ock-charged air to surround
guns of Fig. 14.
' In the form of the invention illustrated in Fig. and move back andforth across the axially-mov
ing. portion of the strand.
,
15, strands Ill to be ?ock-coated, extend ver
7. Apparatus for coating a strand with ?ock,
tically up through a horizontally-extending air
including: means forfeeding-a strand approx
45 duct I“ of baiiied or undulating form. Spray
guns Ill each have a flock-supplyt'ube III and a imately vertically axially of itself during a por
tion of its travel; means for‘ coating the surface of
compresed-aIr-supply tube I“ by which-"?ock
the axially-moving portion of the strand with
charged air is fed under/pressure into and hori
zontally through the air-duct Ill and out the adhesive liquid; and means for charging a- cur
exit-opening I“. The ?ock-charged air coats rent of air with flock and causing said current of
the strands with ?ock in a manner similar to ?ock-charged air to surround and move back and
forth repeatedly across the axially-moving por
that described concerning Figs. 1 to 13. The re
mainder of the apparatus can be similar to that tion of the strand by means of re?ecting surfaces
shown in Figs. 1 to 13. If desired, vacuum or located adjacent and at opposite sides of the
55 suction apparatus, such, for example, as ‘II, ‘II, ‘I! strand.
8. Apparatus for coating a strand with ?ock,
of Fig. 1, may be used in conjunction with the
including: means for feeding a strand approx
pressure spray-guns of Fig. 15.
imately axially of itself during a portion of its
The invention may be carried out in other spe
travel; means for rendering the surface of the
cific ways than those herein set forth without de
axially-moving portion of the strand adhesive;
parting from the spirit andv essential character
and means including a baiile-chamber- of undulat
istics of the invention, and the present embodi
ments are therefore to be considered in all re
ing form, the undulations ofwhich are spaced
spects as illustrative and not restrictive, and all from the strand, for charging air with flock and
40
45
l
changes coming within the meaning and equiva
65 lency range of the appended claims are intended
50.
55
60
causing said ?ock-charged air to surround and
move back and forth across the axially-moving 65
portion of the strand.
to be embraced therein.
9. Apparatus for coating one or more strands
We claim:
1. The method of coating a strand with ?ock, with ?ock, including: a container for liquid ad
including: rendering the surface of a strand ad
hesive; a bathe-chamber adjacent said adhesive
70, hesive; feeding the strand approximately axially
, of itself; and causing two currents of ?ock
charged air to surround and‘ move in opposite
directions to one another across the axially-mov
ing strand.
75
_
2. The method of coating an elastic strand
container; means for feeding one or more strands 70
through adhesive in said adhesive-container and
approximately axially A of itself through said
bathe-chamber; and means for charging air with
?ock and causing said ?ock-charged air to move
through said bathe-chamber; said bathe-chamber 76
2,115,070
'
5
'
having ballie walls on opposite sides of and spaced
from ithe‘strands and being adapted to cause said
?ock-charged air to surround and move back and
forth across the axially-moving portion of the
12. Apparatus for coating one or more strands
with ?ock, including: a container for liquid adhe
sive; a bathe-chamber adjacent said adhesive
strands.
10. Apparatus for coating one or more strands
with ?ock, including: a container for liquid adhe
sive; a baille-chamber adiacent said ‘adhesive
through adhesive in said adhesive~container and 5
approximately axially of itself through said ba?ie
container; means for feeding one or more strands
10 through said adhesive-container and ‘approx
imately vertically axially of itself through said
ba?iei-Lchamber; and means for charging air with
?ock and causing said flock-charged air to move
through said baiile-ch‘amber; said bane-chamber
15 having baille walls on opposite sides of and spaced
from the strands and being adapted to cause ‘said
flock-charged air to surround and move back and
forth repeatedly across the axially-moving portion
of the strands.
v
.
11. Apparatus for coating one or more strands
' with ?ock. including: a container for liquid ad
hesive; a bathe-chamber adjacent said adhesive
container; means for feeding one or more strands
chamber; and means including suction-means
and ?ock-regulating-and-feeding means for
charging air with ?ock and causing said ?ock
charged air to move through said bathe-chamber; 10
said ba?ie-chamber having ba?ie’iwalls on oppo
site sides of and spaced from the strands and
being adapted to cause said ?ock-charged air to‘
surround and move back and forth across the
axially-moving portion of the strands.
15
13. Apparatus for coating a plurality of strands
‘with ?ock, including: a container for liquid adhe
sive and having- a row of exit die-openings for the
passage of a row of strands to be coated and each
opening surrounding and of substantially larger 20
diameter than‘a strand; means for feeding a row 7
of strands through adhesive in said adhesive
contai'ner; means for feeding one-or more strands
container and approximately vertically axially of
through adhesive in said adhesive-container and
the strands through said row of exit openings,
whereby a coating of liquid adhesive adheres to 25
and surrounds the strands; and means for charg
approximately axially of itself through said ballle
chamber: and means including suction-means for
charging air with ?ock and causing said ?ock
charged air to move through said bathe-chamber;
said bailleachamber having baille walls on Opposite
30 sides of and spaced from the strands and being
adapted to cause said ?ock-charged air to sur
round and move back and forth acrossthe axially- ‘
‘ moving portion of the strands.
ing air with ?ock and causing the ?ock-charged
air to move back and forth transversely of and
across the row of strands.
30
SAMUEL C. LHLEY.
MALTBY S. FOWLER.
Документ
Категория
Без категории
Просмотров
0
Размер файла
1 067 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа