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Патент USA US3051412

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Aug. 28, 1962
v. c. REES
Filed March 3, 11958
2 Sheets-Sheet l
BY (vie/man C’. Qma
Aug. 28,
Filed March 3, 1958
2 Sheets-Sheet 2
20656 fame/1e
Patented Aug. 28, 1962
FIG. 2 is a vertical section taken on the line 2—2 of
Vernon C. Rees, Monroe County, Mich, assignor, by
mesne assignments, to Johns-Manville Fiber Glass Inc.,
Cleveland, Ohio, a corporation of Delaware
Filed Mar. 3, 1958, Ser. No. 718,532
5 Claims. (Cl. 242—18)
This invention relates broadly to a novel method and ap
paratus for packaging strands of material. More speci?
cally, it relates to an improved method and apparatus for
packaging a strand comprised of a multiplicity of ?ne glass
Although this description is primarily concerned with
the packaging of strands comprised of ?ne glass ?laments,
it is not to be construed as restricted to glass, but is to in
FIG. 1; and
FIG. 3 is a side elevation showing the relative positions
of the guide and the spool as viewed from the right of
FIG. 1.
Referring to the drawings, the numeral 10 indicates a
bushing for drawing glass. The bottom of the bushing is
provided with a number of ori?ces corresponding to the
number of ?laments making up the strand.
The bushing is charged with a supply of glass, usually
in the form of marbles, which supply is replenished at a
rate commensurate with the draw. Heat is applied to the
bushing in any convenient manner, as electrically, to ren
der the glass therein molten and of a consistency so that it
will rapidly ?ow from the ori?ces in streams ‘12. The
streams of glass 12 are attenuated by means to be de
scribed hereinafter ‘and collected into a single strand at a
guide 13 which is faced at the point of contact with a cloth
14, such as is used to cover tennis balls. The cloth is wet
larly those which are coated with a size, lubricant or
by the coating material issuing in a liquid stream from the
nozzle '16. Thereafter the strand 17 is wound upon a
In the manufacture of strands of the type de?ned above,
revolving spool 18. The apparatus described above is con
a plurality of streams ?ow from a bushing having a pre
ventional in form and function, however, when taken in
determined number of small ori?ces. The streams are
combination with the hereinafter disclosed winding mecha
attenuated in any conventional manner, collected into a
a novel means for coating and packaging stranded
strand and traversed upon a spool to form a package. It is
material is evolved.
also the general practice to apply a coating of a lubricant,
The winding mechanism is generally indicated by the
size, or binder at the collection point.
clude organic and inorganic ?lamentary strands, particu
numeral 19 including a frame 20‘ comprised of four legs 21
connected at the top by pairs of angle irons 22 and 23 to
of a rotating bobbin or spool to form a package.
Unfortunately, the known devices for traversing the 30 form a rectangle and at an intermediate point by additional
pairs of angle irons 24 and '25. A bracket 26 is welded to
strand upon a spool physically contact the strand, either
the outer face of one of the angle irons 24 and supports a
continuously or at regularly spaced intervals. This contact
constant speed motor 27 outside the frame with the motor
tends to separate the ?laments after the binder has set,
output shaft 28 extending horizontally into the open space
thereby destroying the integrity of the strand. Further
Thereafter, the strand is traversed upon the periphery
within the frame (FIG. 2). Another pair of angle irons
more, experiments with traversing devices which physical 35 29
are in spaced, parallel alignment to the bracket 26 span
ly contact the strand have revealed a variation in tension
ning the space between the angle irons 24. A pair of
of the strand within each cycle of the traverser and in
brackets 30 are bolted to the angle irons 29 with a space
addition when continuity ‘of a uniformly applied coating is
between and provide bearings 31 for a shaft 32 which is
imperative such contact has a deleterious effect upon the
uniformity and continuity of the coating.
Also, the known traversing devices are located in close
proximity to the mandrel which rotates the spool or core
and many are rather fragile in nature. The replacement of
the spool is a rapidly executed maneuver and because of
40 joined to the motor output shaft 28 by a coupling 33. A
uniform motion cam 34 is fastened to the shaft 32 in the
space between the brackets 30 by a set screw 35 or equiv
alent means.
A pair of brackets 36 rise from the angle irons 22 to the
of the cam 34, as viewed in FIG. 1, and pivotally sup
the fragility and close proximity of the traversing mecha 45 left
port a shaft 37. A motor base 38 is formed of angle irons
nisms to the mandrel the mechanism is susceptible to
39 and a plate 40 to which a constant speed motor 41 is
damage when a replacement spool is not properly aligned
bolted with the output shaft 42 of the motor 41 above
and at right angles to the cam shaft 31. A pair of brackets
43 (FIG. 1) depend from the end of the motor base 38
remote ‘from the motor shaft 42 and are rigidly connected
It is an object of this invention to provide a method and
to the shaft 37. Another shaft 44 is rigidly fastened to
apparatus for packaging stranded material.
the lower side of the motor base 38 at the opposite end by
It is another object of this invention to provide a method
brackets 45 welded to the frame and by a pair of collars
and apparatus for applying a uniform coating to a stranded
55 46 to prevent end-Wise movement of the shaft 44. A cam
follower 47 is mounted for free rotation on the shaft 44
It is another object of this invention to produce a heli
and is in engagement with the peripheral face 48 of the
cally wound package wherein a coated strand is traversed
cam 34 at a point in vertical alignment with the cam shaft
upon a spool without physical contact by the traversing
32. A pair of collars 49, one on either side of the cam
It is still another object of this invention to provide 60 follower 47, maintains the follower 47 in alignment with
with the mandrel. Furthermore, many of the traversing
mechanisms in use require frequent cleaning and adjusting,
due primarily to lint and dirt fouling the mechanism.
apparatus that is of simple and rugged construction.
It is yet another object of this invention to provide ap
paratus for winding and traversing a strand upon a spool,
wherein the spool replacement area is unobstructed.
Other objects and advantages of the invention will be
come more apparent during the course of the following
description, when taken in connection with the accom
panying drawings.
the cam 34.
A mandrel 50 of any suitable type for retaining the re
placeable spool 18 in positive rotative engagement there
with is mounted on the output shaft 42 of the motor 41.
65 The shaft 42, the mandrel 50 and the spool 18 rotate as a
unit. The length and ‘diameter of the mandrel may vary
to accommodate spools of different length and diameter
than that shown in FIG. 1.
As illustrated in FIG. 1, the uniform motion cam 34 is
In the drawings, wherein like numerals are employed to
designate like parts throughout the same:
70 rotated in either direction to pivot the motor base 38 on
the shaft 37 and by reason of the uniform rise and fall of
FIG. 1 is an elevation of the apparatus for packaging
the cam 34 the distance between centers of the cam shaft
strands of material;
Brie?y summarizing, glass is melted in a bushing 10 and
32 and the cam follower shaft 44 is respectively increasing
and decreasing. The motor 41, the mandrel 5t} and the
spool 18 will rise and fall in unison with the motor base
38 within the limits of the dashed line positions shown in
flows from a plurality of ori?ces formed in the bottom of
the bushing as streams. The heated streams of glass at
FIGS. 1 and 3.
collected into a strand at a point, such as pad 14.
Also as shown in FIG. 1, the solid line position of the
spool bisects the arc inscribed by the spool ‘18 and is here
inafter designated as the normal or at rest position. For
purposes of illustration, the are generated by the pivotal
tenuate into ?laments as they descend and are coated and
after, the strand 17 is started on the spool 18 and the
motors 27 and 41 are energized to respectively pivot and
revolve the spool 18. The starting point of the strand on
the spool is immaterial for the strand 17 will quickly as
action lies in a vertical plane, however, it is well within 10 sume a position normal to the ‘axis of rotation of the spool
18 and will retain that position as the axis of rotation is
the scope of the operation to pivot the motor-mandrel
pivoted ‘forward and back within the are prescribed by the
assembly in a horizontal plane or in an inclined plane. In
cam 34. Each revolution ‘of the cam 34 will produce a
order to accomplish the latter it would be well within the
comprehension of one skilled in the art to substitute an
eccentric linked to the motor for the cam and roller shown
forward and a reverse traverse of the spool with the lead
in the drawings without departing from the spirit of the
the motors.
It will also be noted in FIGS. 1 and 3 that the collection
point on the pad 14 lies in a plane that is normal to a line
advantageously in transferring a continuous strand from
one package to another, either using the pad 14 to apply a
coating or replacing the pad with a guide eye.
Though not speci?cally shown in the drawings, it is con
sidered within the scope of this invention to progressively
incline the spool in one direction only and by properly co
angle of the strand proportionate to the relative speeds of
The winding and traversing apparatus may also be used
parallel to the axis of rotation of the spool 18, that in the
at rest position (solid line) the strand 17 contacts the
periphery of the spool 18 midway of its length and as the
spool is pivoted from the normal position the strand J17
ordinating the speed of rotation of the spool with the rate
traverses toward the end of the spool lying closer to the
collection point. Thus, as the spool 18 is pivoted through 25 of inclination, to wind a package to its full depth in a uni
directional traverse.
one complete cycle two courses will be wound upon the
It is to be understood that the form of the invention
spool, each course being in an opposite direction.
herewith shown and described is to be taken as an illustra
' Irrespective of the pivoted position of the spool 18
tive embodiment only of the same, and that various
within the prescribed limits of the arc the approach of the
strand 17 to the spool ‘18 is normal to the ‘axis of rotation 30 changes in the shape, size and arrangement of parts, as
well as various procedural changes may be resorted to
of the spool.
without departing from the spirit of the invention or the
It will also be noted that the traversed length of the
scope of the subjoined claims.
package varies directly to the distance between the collec
‘I claim:
tion point 14 and the axis of the spool. Thus, if the pad
1. Apparatus for forming a continuous strand package
14 were moved away from the spool 18, the traversing
of predetermined width from a plurality of continuous
stroke would be increased ‘and conversely if the pad were
moved toward the spool the stroke would be decreased.
?laments, comprising a source for said strand, a spool
Varying the throw of the cam 34 also increases and de
creases the magnitude of the traversing stroke in direct
proportion. However, since the approach of the strand
17 is at all times normal to the axis of rotation of the spool
18, the diameter of the spool or the depth of the cake will
not alter the magnitude of the traversing stroke.
Since it is simpler to vary the distance between the pad
14 and the spool '18, this is the preferred form of varying
the magnitude of the traversing stroke. However, if for
some reason it is desired to change cams, it would be a
relatively simple matter to provide means for vertically
raising and lowering the cam shaft 32 to retain the spool
18 in the solid line position of FIG. 1 when the cam fol
lower 44 is in contact with the median point on the periph
ery of either the rise or fall.
The uniform motion cam 34 shown will produce a sub
stantially cylindrical package. However, modi?cation of
the cam will permit acceleration and deceleration within
the traversing stroke to produce a package that is crowned
at the center or one that is crowned at the ends.
In order to attenuate the ?laments 12 and the strand 17,
motor 41 revolves at a speed which is calculated to wind
the strand {on the spool 18 at a lineal rate that exceeds the
lineal flow of the ?laments from the bushing 10. Likewise,
the rotative speed of the motor 27 carrying the cam 3-4 is
calculated to provide a traverse of the spool v18 so that
successive bights of the strand are separated. With the
rpm. of motor 41 held constant, the space between suc
cessive bights varies in direct ratio with the rpm. of the
motor 27. When packaging coated strand, it is preferred
to traverse the spool rapidly with the strand >17 inscribing
a large helix angle. Thus, the bights in any half cycle are
spaced apart a substantial distance ‘and the big-hts of any
complementary half cycle intersect the bights of the pre
ceding half cycle at an angle to provide substantially point
contacts at the intersections. This feature is particularly
important in packaging coated material, for the package
rotatable about a ?rst axis and adapted to receive a strand
on the periphery thereof, means for rotating said spool,
means spaced from said ?rst axis for collecting said ?la
ments into a strand and for directing said strand onto said
spool in a path normal to the axis of said spool, and
oscillating means oscillating said ?rst axis within a pre
scribed arc to traverse said strand upon said spool a
length substantially corresponding to said predetermined
width, said oscillating means oscillating about a second
axis perpendicular to said ?rst axis and out of vertical
alignment with said spool.
2. Apparatus for winding a continuous strand upon a
spool to form a package of predetermined width, com
prising a source for said strand, a spool, means for rotat
ing said spool about an axis, guide means spaced from
said spool and adapted to direct said strand from said
source onto said spool in a path normal to the axis of
said spool, and means for pivotally inclining the axis
of rotation about an axis perpendicular to the axis of
rotation and out of vertical alignment with said spool to
advance the strand along the spool as it is wound thereon
a length corresponding to said width.
3. Apparatus for forming a package, having a pre
determined width, of strand material comprising: a source
of strand material; a rotatable spool; means for rotating
said spool about a ?rst axis at a predetermined speed and
thereby winding the strand material; and oscillating means
for pivotally oscillating said spool about a second axis,
said second ax-is being normal to said ?rst axis and lying
in a plane displaced from any vertical plane normal
to said ?rst axis and extending through said spool, and
said oscillating means being adapted to oscillate said
spool in a manner whereby said strand traverses a length
of said spool equal to said predetermined width.
4. In a device for winding a continuous strand upon
a spool to form a package having a predetermined width,
unwinds with less tension being placed on the strand and
the combination comprising: a cantilevered support means,
at a uniform tension throughout the package.
75 rotatable about an axis, for supporting said spool in a
manner whereby it may be inserted and withdrawn along
‘a rectilineal line coaxial with the axis of rotation of said
support means; means for rotating said support means; and
means for pivotally oscillating said support means about a
point displaced from any vertical plane normal to said axis
and extending through ‘said spool.
said strand in opposite directions substantially lengthwise
of said spool.
References Cited in the ?le of this patent
Slayter et al. ________ __ Mar. 18, 1941
5. Apparatus for packaging material in strand form
Holcomb _____________ __ Oct. 7, 1952
comprising: a rotatable spool about which 'a strand of
material is adapted to be Wound; and a motor supporting
Corbiere et al. ___.___.___ Nov. 15, 1955
Stephens et al. _______ __ Aug. 5, 1958
said spool at one end thereof, said motor being pivotally 10
Drummond __________ __ Oct. 7, 1958
Drummond et al. _____ __ Dec. 9, 1958
Hubband ___________ __ July 21, 1959
Kimberly ___________ __ Apr. 1, 1960
mounted for movement in ‘a path about an axis perpen
dicular to the axis of rotation of said spool and out of
vertical alignment with said spool to successively move
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