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Патент USA US2406707

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Aug.27, 1946.
‘NVERBEKE
' PROCESS FOR MAKING FIBROUS BRISTLES
Filed Feb.’ 3,‘ 1942
"2,406,707
Patented Aug. 27, 1946
2,406,707
UNITED STATES PATENT OFFICE
'
'
,
2,406,707
‘
PROCESS FOR MAKING FIBROUS BRISTLES
John Overbeke, Cleveland Heights, Ohio
Application February 3, 1942, Serial No. {129,405
3 Claims.
1
(Cl. 117-'—4)
2
.
My invention relates in general to the process
for impregnating a ?brous cord and more partic
ularly to a process for making impregnated bris
tles for brushes and the like.
'
‘
An impregnated cord produced by my appara
tus and process is suitable for brushes for in-_
dustrial purposes or the like.
The impregnated
cans glue by unwinding the cord from the roll
with the roll revolving in the glue.
Another object of my invention is to provide
for relieving as much as possible the tension up
on the impregnated cord as it is’ wound upon the
take-up reel.
‘
'
Another object of my invention is to provide
for separating the layers of impregnated cord on
cord is relatively thin and is capable of With
the take-up reel by removing the cord from the
standing a terri?c amount of severe abuse in the
polishing and surfacing‘of metals and other ma 10 take-up reel and re-winding it upon a severing
reel where the layers of cord are cut in suitable
terials requiring polishing and surfacing. The
lengths for brush bristles.
impregnated cord is thus used for bristles in
Another object of my invention is to provide
brushes and the like.
for drying the impregnated cord after it has been
In the practice of my invention, the cord is
'
impregnated with glue or any other suitable vis 15 once cut up in bristles.
Another object of ‘my invention is the provisio
cous substance. The glue or other viscous sub
of thoroughly impregnating a ?brous cord with
stance may have ?nely divided abrasive material
viscous glue or other viscous substances without
therein to produce a more vigorous polishing or
the use of rollers forcing the glue into the cord
surfacing action upon the metal or other sub
or without the use of a vacuum to force the glue
stance being processed. Thus, for example, the 20 into the cord.
glue or other viscous substance may have ?nely
divided abrasive materials in the nature of pow
der or in larger particles so long as the abrasive
material is capable of remaining ‘in suspension in
the glue or other viscous substance during the
process of impregnating the cord with the glue.
As used herein, the term “glue or other viscous
substance” is interpreted to include the abrasive
material or substance therein.
Also as used
Other objects and a fuller understanding of ‘
my invention may be had by referring to the fol
lowing description and claims, taken in conjunc
- tion with the accompanying drawing, in which:
Figure 1 represents a diagrammaticside eleva
tional view of my apparatus for carrying out the‘
process of impregnating the cord with viscous
glue orrother viscous material in accordance with
my
invention; 7
'
herein, the term glue or viscous glue is meant
Figure 2 is aperspective view of the equipment
any viscous liquid which when soaked into the
shown in Figure l; with a modi?cation in the di
cord will act as an impregnating‘ and therefor
rectional reversing roll;_
a binding medium for anchoring the strands of
Figure 3 is a diagrammatic illustration of a side
the cord.
05 Oi ' elevational view of a take~up reel and a sever
In the impregnation of a cord with glue or
ing reel employed in carrying out my process;
other viscous substance, a great deal of di?iculty
Figure 4 is a plan elevational View of the
has been experienced in forcibly causing the glue
equipment shown in Figure 3;
or other viscous substance to penetrate the cord
Figure 5 illustrates a group of the impregnat
and completely ?ll the interstices of the cord to 40 ed layers of cord;
render the cord uniform. "In using a ?brous im
.1 Figure 6 shows a perspective View of a roll of‘
pregnated cord as the bristle fora brush, it is
?brous material which is adapted to be impreg- X
essential that the bristles be uniformly impreg
nated in accordance‘ with my process;
nated throughout their length because if non
_
Figure '7 is a side elevational view of the glue
uniformity exists in the impregnation of the cord,
vessel employed in my process and'showing the
some of the bristles will wear away sooner than
disposition ofrthe rolls of ?brous cord‘ therein
others leaving the brush in poor condition to do
during the impregnation thereof;
a good polishing or surfacing operation.
Figure 8 shows a side elevational view of a re
An object of my invention is the process of im
volving drying wheel employed to dry the group
of impregnated cord as shown in Figure‘5; and
pregnating a fibrous cord with glue or other vis->
Figure 9 is an end View of the revolving drying
cous substance so that the impregnation is thor
oughly uniform throughout the length of the
wheel shown in Figure 8.
cord
or
bristle.
'
'
Another object of my invention is to provide
for impregnating a roll of ?brous cord With vis
With reference to Figures 1, 2 and '7, I illustrate
a process and apparatus. for impregnating a ?
brous cord H with viscous glue or other viscous
2,406,707
3
4
substance contained in a glue vessel l2. The cord
II is unwound from a roll of vibrous cord illus
trated by the reference character Ill. In the
practice of my invention I may employ a single
roll [0 or a plurality of rolls. In Figure 2 I il
impregnated cords pass from the reversing drive
lustrate 8 rolls of ?rbous cord disposed in the
movement illustrated diagrammatically by the
roller means to a take-up reel 29 carried by a
support 3| and driven by a motor 30. As dia
grammatically illustrated, the motor 30 also
reciprocally drives a guide 33 by a transmitting
dash-dot line 34. The guide 33 as it oscillates
glue vessel i2. In the practice of my invention
back and forth provides for directing the cords
the cord l l is unwound from the rolls Ill with the
of the impregnated material upon the take-up
rolls revolving in the glue contained in the glue
vessel. In the drawing, I illustrate the rolls of 10 reel 39 to give substantially a level wind. The
guide 33 preferably is designed to make one trav
?brous cord It being completely immersed below
erse for each revolution of the wheel to make a
the level of the glue indicated by the reference
cries-cross wind to keep the cords from sticking
character [3. The cords l l as they are unwound
from the rolls Ill pass over a roller i4 suitably
together as much as possible.
The impregnated cords as they pass around the
supported upon the upper edge of the glue vessel 15
driving roller means are sticky and thus the driv
I2. As illustrated in Figure 6, each of the rolls
ing roller means provides for withdrawing the
of ?brous cord is carried by a roll holding device
cords from the glue vessel and through the glue
i 5 which may be adjustably fastened to cross
setting device 20. Consequently, the take~up reel
bars H supported on top of the glue vessel £2.
29 is relieved of providing the necessary pull to
The roll holding devices is may be adjustable in
withdraw the cords from the glue vessel I2 and
a vertical manner by any suitable means and as
from drawing the impregnated cords through the
illustrated I employ a wing nut it which may be
manually turned for making the adjustment or
glue setting device. In other words, the tension
of the cords as they are wound upon the take~up
for mounting a new roll in the glue vessel l2.
The rolls of ?brous cord are preferably wound 25 reel is relatively slight being only that required
with a space between the adjacent layers of the
to take up the slack between the reversing drive
roller means and the take-up reel 29. This is
cord so that the glue may gradually soak itself
an important feature in that the impregnated
easily into the roll. In this monner the glue is
given a relatively long period of time in which to
cords are not wound tightly about the take-up
soak into the cord before the cord passes out of 30 reel which would tend to make the cords stick
together as they dry. An air drying chamber 35
the glue vessel H. In the practice of my inven~
may be employed to hasten the drying of the
tion I preferably immerse the entire roll of cord
below the level of the glue but I ?nd that satis
glue. As illustrated in Figure 1, the impregnated
cord is arranged to pass through the air drying
factory results may be obtained if the roll is not
entirely immersed because the roll revolves as 35 chamber 35 as it leaves the glue vessel I2 and
the cord is withdrawn therefrom. Thus, the lay
prior-to reaching the glue setting device 20 and
ers of the cord upon the roll are soaked with glue
the cord as it returns from the reversing drive
long prior to the time that the last layer or out
roller 2'! may also again pass through the air
side layer is withdrawn from the roll. Another
drying chamber 35 before being wound upon the
advantage of withdrawing the cord with the roll 40 take-up reel 29. Care must be exercised that the
revolving in the glue is that I do not need to em
air drying chamber does not dry the glue too
ploy rollers to force the glue into the cord and
quickly as it may tend to destroy the bene?cial
accordingly I obviate the requirement of putting
results of the glue impregnated in the ?brous
a great deal of tension upon the cord as it is re
moved from‘the glue vessel. In addition, the re~
volving rolls agitate the glue and keep the con
sistency uniform.
cord for bristle purposes.
_
After the cords are wound upon the take-up
reel 29 they are permit‘ed to dry in atmosphere
until they have dried su?icientiy so that they
no longer stick together when they are sep
arated. I provide for separating the layers of
cord on the take-up reel 29 by removing the
cord from the take-up reel and re-winding it
As shown in Figures 1 and 2, after the cord
leaves the glue vessel 52 it passes through a glue
setting device indicated by the reference charac
ter 20 which may comprise rubber-like or sponge
like material through which the impregnated
upon a severing reel ‘57.. This is illustrated in
cords ‘pass as a suitable liquid of glue setting
Figures 3 and 4. The support 33 for the take-up
characteristic is pumped upon the rubber-like
reel 29 is provided with casters 32 so that the
or sponge-like material from a tank 2| by means 55 take-up reel 29 may be rolled over in alignment
of a pump 22 and a pipe 23. By the circulating
with the severing reel 3'3. While the take~up
arrangement as illustrated, the rubber-like or
reel 29 is being unwound as shown in Figures 3
sponge-like material through which the impreg
and 4 a spare take-up reel 29 may be used to
nated cord passes is always maintained in a wet
carry out the process in Figures 1 and 2 while
condition with the glue setting liquid.
60 the processes in Figures 3 and 4 are likewise being
After the cords of impregnated ?brous material
carried out. The severing reel is supported by a
pass through the glue setting device, they are
support 38 and may be driven by a motor 39
then directed to a reversing drive roller means
which also operates a guide 132 for: directing the
carried by a support 26 and driven by an electric
cords upon the severing reel 3?. The motor 39
motor or other suitable drive 25. The reversing 65 may drive the guide in any suitable manner and
drive roller means may comprise a single drive
as illustrated it may be oscillated back and forth
roller 24 as shown in Figure 2 or double drive
by means of a transmitting movement indicated
by the dash-dot line 3%. As shown in Figure 4,
rollers 24 and 21 as shown in Figure 1. The
arrangement of Figure 1 is preferable as the
the severing reel 3'3 is provided with two halves
glue setting liquid is given an opportunity to 70 40 and M upon which the impregnated cords may
be wound. The cord is ?rst wound upon one
trickle down the vertical cord between the two
rollers 21 and 24 which greatly facilitates the
half such, for example, as the half 4! until the
reel is substantially full and then the layers of
drying of the cord. That is to say, any excess
cord are tied at intervals by the tying cord 43.
glue setting liquid on the cord is caused to drain
off the cord before it passes over the roll 21. The 75 After one-half is ?lled then the other half, for
2,406,707
6
example, 40 is then wound until it is full, and
then this half islikewise tied at intervals by a
tying cord. When both halves are ?lled and
properly tied, then the layers of cord are sev
ered near the places where the tying cords are
located. The severing of the layers of cord pro
duce groups of impregnated cord as illustrated
by the reference character 44 in Figure 5. The
by way of example and that numerous changes
in the details of construction and the combina
tion and arrangement of parts may be resorted .
to without departing from the spirit and the scope
of the invention as hereinafter claimed.
impregnated cords in the groups of impregnated v
ing the cord in a wound roll with space between
I claim as my invention:
1. The process of impregnating a fibrous cord
with viscous glue comprising the steps of wind
cord-do not stick together as they have been 19 adjacent turns so that the glue may penetrate
the wound roll between adjacent turns when the
separated when the cords are unwound from the
take-up reel 29 and wound upon the severing
roll is placed in the glue, soaking the wound roll
reel 31. The groups of impregnated cord 44 may
of the ?brous cord in the viscous glue and thereby
be suspended from a suitable hook in a drying
allowing the‘glue to penetrate the turns of the
room where the impregnated cords. are further 15 cord’ prior to the time that the cord is withdrawn
allowed to dry or they may be dried in a quicker
from the roll, withdrawing the soaked cord from
. fashion by a revolving drying wheel indicated by '
the roll at a point below the level of the glue while
the reference character 41 carried by a support
the roll remains in the glue, and revolving the
48, see Figures 8 and 9. The revolving drying
roll as it is withdrawn to keep the glue well agi
wheel is provided with a series of peripherally 20 tated around the roll.
arranged screen compartments 50 to receive the
2. The process of impregnating a ?brous cord
groups of impregnated cord 46. Each of the
with viscous glue comprising the steps of winding
screen compartments 50 is provided with a
the cord in a wound roll with space between ad
hinged screen cover 5!, so that the groups of
impregnated cord may be readily placed in the 25 jacent turns so that the glue may penetrate the
wound roll between adjacent turns when the roll
screen compartments of the revolving drying
is
placed in, the glue, soaking the wound roll of
wheel by merely opening the hinged screen cover
the ?brous cord in the viscous glue and thereby I '
and placing the groups ofimpregnated cord lon
allowing the glue to penetrate the turns of the
gitudinally cross-wise therein. The revolving
drying wheel 41 may be revolved by a motor 48 30 cord prior to the time that the cord is Withdrawn
from the roll, withdrawing the soaked cord from
which readily hastens the drying of the impreg
the roll while the roll remains in the glue, and
nated cords.
agitating the glue around the roll as the cord.is
As shown in Figure '7, thebottom corners of
withdrawn.
the glue vessel [2 are round so that the rolls of
3. The process of producing a ?brous bristle for
?brous material may be arranged to revolve rel 35
brushes comprising the steps of impregnating a
atively close thereto as the cord II is Withdrawn
?brous cord with viscous glue by winding the‘
therefrom. The revolving of the rolls I0 rela
cord in a wound roll with space between adjacent
tively close to the round corners keeps the glue
turns so that the glue may penetrate the wound
or other viscous substance which may have ?nally
a divided abrasive material therein from collecting 40 roll between adjacent turns when the roll is placed
in the glue, soaking the wound roll of the ?brous
in the corners as it would do if the corners of the
V cord in the viscous glue and thereby allowing
glue vessel were square. The glue vessel I2 is
the glue to penetrate the turns of the cord prior
preferably made with a water or steam jacket and
to the time that the cord is withdrawn from the
the heat is applied to the outside of the water or
steam jacket. ‘In the drawing the steam jacket 45 roll, withdrawing the soaked cord from the roll
while the roll remains in the glue and agitating
is not shown but the heat is applied as indicated
by the arrows which include heating methods of ' the glue around the roll as the .cord is withdrawn,
passing the unwound cord through a glue setting
all kinds.
.
device, and then severing the impregnated cord
Although I have described my invention with
‘
a certain degree of particularity, it is understood 50 at intervals to make the bristles.
JOHN OVERBEKE.
that the present disclosure has been made only
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