U.S. patent number 3,817,467 [Application Number 05/267,811] was granted by the patent office on 1974-06-18 for device for continuous winding of continuously running webs of material.
Invention is credited to Jurgen Dambroth.
United States Patent |
3,817,467 |
Dambroth |
June 18, 1974 |
DEVICE FOR CONTINUOUS WINDING OF CONTINUOUSLY RUNNING WEBS OF
MATERIAL
Abstract
A multiple roller winding apparatus for the continuous winding
of a continuously moving web of material. The material is wound
onto take-up rollers which are fed from a magazine to driving
rollers, and are disposed during the winding operation in a wedge
formed between the driving rollers. A cutting means is provided for
cutting the web of material when it reaches a predetermined
diameter, and a feed means is utilized to start the web of material
on a new take-up roller. An intake roller and an auxiliary winding
roller are pivotably mounted on the winding apparatus and are
movable between two different positions with respect to a
stationary delivery roller so that in a first position a starting
wedge is formed by the intake roller and auxiliary roller, and in
the second position a wedge is formed between the intake roller and
the delivery roller in order to complete the winding operation.
Inventors: |
Dambroth; Jurgen (3141 Gut
Wienbuttel uber Luneburg, DT) |
Family
ID: |
27181977 |
Appl.
No.: |
05/267,811 |
Filed: |
June 30, 1972 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
Issue Date |
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45057 |
Jun 10, 1970 |
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Foreign Application Priority Data
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Jun 11, 1969 [DT] |
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1929570 |
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Current U.S.
Class: |
242/527.2;
242/533.1; 242/533.2; 242/542.2 |
Current CPC
Class: |
B65H
19/2253 (20130101); B65H 2301/41814 (20130101); B65H
2301/41822 (20130101); B65H 2301/41361 (20130101); B65H
2515/12 (20130101) |
Current International
Class: |
B65H
19/22 (20060101); B65h 019/20 (); B65h
017/08 () |
Field of
Search: |
;242/56R,56A,65,66 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Huckert; John W.
Assistant Examiner: McCarthy; Edward J.
Attorney, Agent or Firm: Collard; Allison C.
Parent Case Text
This application is a continuation-in-part of my co-pending patent
application, Ser. No. 45,057, filed June 10, 1970, entitled "Device
for Continuous Winding of Continuously Running Webs of Material"
and since abandoned.
Claims
What is claimed is:
1. A multiple roller winding apparatus for continuously winding
moving webs of material on winding spools, and including a supply
magazine for supplying a plurality of winding spools on which the
material is wound, and cutting means for cutting the web of
material when a roll of material reaches a predetermined diameter,
comprising:
first mounting means, pivotably mounted at one end thereof, and
movable between a first position in which said mounting means is
disposed vertically and a second position in which said mounting
means is disposed at an angle to said first position:
a first drive roller, mounted on said mounting means;
a winding roller, mounted on said mounting means parallel and
adjacent to said first drive roller, said drive roller and winding
roller forming a wedge therebetween for receiving the winding
spools on which the webs of material are wound, and said drive
roller engaging the webs of material wound on a winding spool when
said mounting means is disposed in said first position so as to
wind the webs of material thereon;
a second drive roller, mounted on the winding apparatus parallel to
said first drive roller and said winding roller, for engaging the
webs of material wound on the winding spools when said mounting
means is disposed in said second position, said first drive roller
and said second drive roller forming a wedge therebetween for
receiving the winding spools on which the webs of material are
wound; and
second mounting means pivotably mounted on the winding apparatus,
and disposed above said wedge between said first and second drive
rollers, for receiving the ends of the winding spools on which the
webs of material are wound.
2. The winding apparatus as recited in claim 1, wherein said
winding roller and said second drive roller are rotated at a
rotational speed which is greater than the rotational speed of said
first drive roller.
3. The winding apparatus as recited in claim 2, wherein said first
mounting means comprises a pair of pivotable plates, pivotably
mounted on the winding apparatus at one end thereof, said first
drive roller and said winding roller being mounted at the other end
thereof parallel to each other.
4. The winding apparatus as recited in claim 3, wherein said second
mounting means comprises a pair of mounting arms, pivotably mounted
on the winding apparatus vertically above said second drive roller,
and including means for receiving the ends of the winding spools on
which the webs of material are wound as the winding spools are
rotated by said first and second drive rollers when said first
mounting means is disposed in said second position.
5. The winding apparatus as recited in claim 4, further comprising
means for directing a stream of pressurized air at the severed end
of the web of material when the web is cut by the cutting means,
and guiding said end upwardly around the winding spool disposed in
said wedge between said first drive roller and said winding roller
when said first mounting means is disposed in said first
position.
6. The winding apparatus as recited in claim 5, wherein said
cutting means comprises a blade carrier movable relative to said
web and a plurality of cutting blades mounted on said carrier for
movement relative thereto.
Description
The present invention relates to winding devices, and in particular
to a multiple roller winding apparatus for continuously winding
moving webs of textile material onto a plurality of winding
spools.
When treated webs of material are wound onto winding spools, the
speed of the webs of material and the tension of the webs of
material, must be constant. Conventional winding devices, however,
do not maintain constant web speed and tension, and these devices
are thus unable to provide web rolls of uniform firmness. These
conventional devices are also expensive to manufacture, and are
prone to mechanical breakdown.
Accordingly, the present invention provides a multiple roller
winding apparatus which overcomes the above-mentioned disadvantages
of conventional devices. The winding apparatus comprises a material
intake roller, and an auxiliary winding roller, both of which are
rotatably mounted in a pivotable mounting member, so as to form a
wedge or depression therebetween. The rollers are disposed opposite
a stationary delivery roller which forms, with the intake roller, a
wedge in which the final winding of a roll of material takes place.
The auxiliary winding roller and the delivery roller are rotated at
speeds slightly greater than the speed of the intake roller in
order to maintain constant tension on the web of material being
wound. The winding apparatus further comprises cutting means, which
may be a plurality of rotatable cutting knives, for cutting the web
of material being wound when the roll of material reaches a
predetermined thickness. Air feed means mounted on the winding
apparatus provide one or more pressurized air streams directed
towards the severed end of the web of material to start the web of
material on a new spool.
It is therefore an object of the present invention to provide a
winding apparatus in which the tension and speed of a moving web of
material are constant.
It is also an object of the present invention to provide a winding
apparatus which is simple in design, easy and inexpensive to
manufacture, and which is simple and reliable in its operation.
Other objects and features of the present invention will become
apparent from the following detailed description taken in
connection with the accompanying drawings which disclose several
embodiments of the invention. It is to be understood, however, that
the drawings are designed for the purposes of illustration only,
and are not intended as a definition of the limits and scope of the
invention.
In the drawings, wherein similar reference numerals denote similar
elements throughout the several views:
FIGS. 1-8 illustrate schematically the different stages of the
winding operation carried out by the winding apparatus of the
present invention;
FIG. 9 is a side planar view, partly in schematic form of a winding
apparatus constructed in accordance with the present invention;
FIG. 10 is a side view of another embodiment of a winding apparatus
constructed in accordance with the present invention;
FIG. 11 is a schematic diagram of the electro-mechanical control
system for the winding apparatus illustrated in FIG. 10, and
FIG. 12 is a fragmentary front view of one embodiment of a cutting
means for the winding apparatus of the present invention.
Referring to the drawings, specifically to FIGS. 1-8, there is
shown web of material 11 which is wound onto a take-up roller or
spool 12 in the gusset-shaped interval between intake roller I and
the stationary delivery roller III. The take-up spool is guided in
guide tracks 13 which from part of pivot arms 14 which pivot about
pivot axis A. The intake roller I rotates at a constant speed which
corresponds to the speed of the discharge of the web of material
from an immediately preceeding treatment stage. In order to obtain
a firm winding of the material on takeup spool 12, delivery roller
III rotates at a speed which is slightly greater than the
rotational speed of the intake roller.
When the thickness of the material wound on roller 12 reaches a
predetermined diameter, pivot arms 14 swivel material 15 on roller
12 away from intake roller I. Roller 12 is rotated for a short
period of time by delivery roller III during which time the web of
material is severed and the roll of material 15 is removed from
pivot arms 14. When the roll of material is swung away from intake
roller I, as shown in FIG. 2, mounting member 16, upon which intake
roller I and auxiliary winding roller II are rotatably mounted, are
pivoted about pivot axis B into a vertically-disposed position, as
illustrated in FIG. 3. A vertically-disposed pivotable magazine 18
is then pivoted downwardly about pivot axis C, which is preferably
located above the intake roller, so that a new take-up spool 17 is
deposited in the wedge formed between intake roller I and auxiliary
winding roller II. The take-up spool is retained in the wedge
between the rollers by a flexible retaining means 19, illustrated
in FIG. 9. These retaining means may be flexible, metallic,
frame-shaped or bow-shaped straps rigidly mounted on magazine 18 so
as to retain the winding spools between the intake and auxiliary
rollers. The retaining means are mounted stationary on the
magazine, and may have a slightly L-shaped configuration.
Auxiliary winding roller II rotates at a speed which is slightly
greater than that of the rotational speed of intake roller I. Since
delivery roller III also rotates at a speed greater than that of
the speed of intake roller I, a firm winding of the web 11 on the
winding spools is achieved.
After spool 17 has been deposited between the intake and auxiliary
winding rollers, it is rotated by the movement of web of material
11. The retaining means prevent the new take-up spool from being
lifted from the wedge between the rollers due to the tension in the
web of material. Intake roller I and auxiliary roller II also
rotate the new take-up spool. The retaining means serves to insure
that the new take-up spool engages rollers I and II so that
sufficient frictional force is maintained to rotate the spool.
Delivery roller III rotates the web of material 15 on winding spool
12.
When the diameter of the roll of material on spool 12 reaches a
predetermined thickness, cutting means 20, which may be an
incandescent filament 21, a cutting knife, or a plurality of
rotating cutting knives, is guided upwardly from below the web of
material between auxiliary winding roller II and delivery roller
III in order to sever the web, as illustrated in FIG. 5. It should
be noted that any other type of suitable conventional cutting means
may be utilized to cut the web of material. The cutting means is
mounted on a feed means 22, which moves upwardly in guide tracks.
The feed means includes a plurality of individual air nozzles 23,
which are coupled to a pressurized gas source. One elongated slot
may also be used instead of the plurality of air nozzles. Sometime
before the cutting operation begins, the air nozzles are supplied
with air under pressure so that the web of material being cut will
be tensioned initially by the streams of air to aid the cutting of
the web of material. After the web is cut, the new leading edge 24
of the web is forced upwardly around the new take-up roller 17 to
start the web of material on the new winding roller. The air stream
from nozzles 23 continues as the feed means 22 moves upwardly so
that the web of material is wound uniformly around spool 17.
Magazine 18 is then pivoted upwardly away from spool 17 to a
vertically disposed position, and the new roll of material 25 is
wound on spool 17 in the wedge between rollers I and II. Delivery
roller III simultaneously rotates the completed roll of material
15, and pivot arms 14 pivot the roll of material away from roller
III out of contact therewith until the roll 15 drops from guide
tracks 13 onto a receiving means 26, shown in FIG. 7.
The location of axis point A above delivery roller III insures that
the severance of web of material 11 occurs almost totally without
tension. The discharge of roll 15 onto receiving means 26 also
occurs without tension due to the position of axis point A. Pivot
arms 14 are then moved back to their normal winding position above
roller III in preparation to receive the new roller 17 in guide
tracks 13. As pivot arms 14 are pivoted, mounting members 16 pivot
roller I and II and wind-up spool 17 to the winding position below
pivot arms 14 so that spool 17 is received in guide tracks 13 as
material 15 increases in diameter and lifts spool 17 upwardly into
guide tracks 13. Material 25 is wound by rollers I and III as shown
in FIG. 8, and the entire winding operation described above is
repeated.
A partial schematic side view of the winding apparatus of the
present invention is illustrated in FIG. 9. Mounting members 16 for
rollers I and II are pivotably mounted about pivot axis B on side
wall 27 of the winding apparatus. The pivot arms 14, magazine 18,
and mounting members 16 are in the positions illustrated in FIG. 4.
Magazine 18, and retaining means 19, are shown in the starting
position of the winding operation of the web of material on spool
17 before web 11 is cut by the cutting means. In this starting
position, retaining means 19 presses the takeup spool 17 between
rollers I and II so that the spool is not lifted from the wedge
therebetween by web 11. The distance traveled by the cutting and
feeding means is indicated by dotted line 20-23. A stationary
supply magazine 28 is provided on the winding apparatus for
supplying new take-up spools to magazine 18. Flanges 29 are
provided on the lower ends of pivot arms 14 for guiding the take-up
spools into guide tracks 13. Pivot arms 14 are coupled to a
hydraulic piston cylinder 30 by a rigid arm 31.
FIGS. 10-12 illustrate a pneumatically or hydraulically controlled
winding apparatus constructed in accordance with the present
invention. At the start of the winding operation, mounting members
16 are vertically disposed and a take-up spool 17 is disposed in
between rollers I and II, as previously described. The web is
guided from the pretreatment stage to rollers I and II by guide
rollers 32, which are rotatably mounted on the winding apparatus
side wall 27. A mechanical or optical scanner (not shown), which
may be a plurality of switches and levers or photocells, or a
combination thereof, is mounted on the winding apparatus to scan
the diameter of the roll of material being wound. As the material
is wound on the spool, the diameter of the roll increases and
pivots magazine 18 upwardly. When the roll of material being wound
between rollers I and II reaches a diameter of approximately 120mm,
the magazine engages and actuates switch 34, which energizes magnet
valve 35 which controls control valve 36 of the hydraulic or
pneumatic cylinder 37. Valve 36 admits either air or hydraulic
fluid to cylinder 37. Piston arm 38 is withdrawn into cylinder 37
so as to pivot mounting members 16 about pivot axis B towards
stationary delivery roller III. The mounting members are pivoted
until the position indicated by dotted lines 39a in FIG. 10 is
reached, whereupon spool 17 with the material wound thereon rests
between winding roller I and delivery roller III. The magazine is
pivoted upwardly simultaneously by a cylinder actuated by switch 34
to a vertically-disposed position. When mounting members 16 are
pivoted towards delivery roller III, the mounting members disengage
switch 39b to prevent an electrical impulse from being transmitted
from meter counter 40 and activating any of the magnetic valves of
the control system. This prevents the cutting means of the
apparatus from being actuated when the mounting members 16 are not
in a vertically-disposed position. Switch 41 also prevents an
impulse from being transmitted by meter counter 40 when receiving
platform 41 is in a downwardly disposed, lowered position. Switches
39b and 41 are coupled to terminal 43 of meter counter 40.
The winding of the material on take-up spool 17 continues, and the
ends of the spool are received in pivot arms 14 in guide tracks 13.
The winding continues until an impulse from terminal 44 of meter
counter 40 energizes magnet valve 45. Switch 46 is mounted on pivot
arms 14 to limit the maximum diameter of the roll of material which
may be wound on the spool. This prevents the ends of the spool from
rising out of guide tracks 13. The scanner of the device also scans
the diameter of the roll of material as it is being wound on spool
17 on pivot arms 14. The meter counter is coupled to the scanning
device and measures the diameter of the roll of material on the
winding spool. It may be programmed to transmit an electrical
impulse when the diameter reaches a predetermined value.
The winding of the webs of material on take-up spool 17 continues
until an impulse is received by magnet valve 45 from terminal 44 of
meter counter 40, the scanner, or switch 46. Terminals 47 are
coupled to terminals 48 which are connected to an electric
hydraulic pump 49, and magnet valve 50. When the impulse is
transmitted from terminal 44 of meter counter 40, electric motor 50
which powers cutting means 51, and electric hydraulic pump 49, are
actuated. Magnet valve 50 is also activated, and hydraulic cylinder
52 raises platform 42 upwardly to the illustrated horizontal
position for receiving the roll of material 15. When the platform
is pivoted upwardly and reaches its horizontal position, switch 41
is engaged by the platform, and shuts off pump 49. It should be
noted that the hydraulic system utilized to activate cylinder 52 is
separate from the system utilized to activate the other components
of the winding apparatus. The hydraulic pump may be coupled to the
scanner of the winding apparatus, so that platform 42 is raised
when roll of material 15 reaches a predetermined diameter for
receiving the roll of material, and then lowered to allow the roll
of material to roll into a collection bin. Magnet valve 45 is
coupled to magnet valve 36 and magnet valve 53. This valve
indirectly controls the supply of air or hydraulic fluid to
cylinder 37 through valve 36.
The same impulse which is transmitted from the meter counter to
activate hydraulic pump 49 and motor 50 energizes magnet valve 45
which in turn energizes magnet valve 36, and causes cylinder 37 to
pivot mounting members 16 into their vertically disposed position.
When the mounting members reach their proper position, switch 39b
is engaged, and the cutting means safety shut-off is no longer
affected. At the same time, a new take-up spool is admitted to
magazine 18, the magazine is pivoted downwardly by the cylinder and
roller I, and the spool is discharged therefrom. The new take-up
spool is disposed between rollers I and II, and is retained in the
wedge formed therebetween by the retaining means 33. Magnet valve
45 also simultaneously activates magnet valve 53, which admits air
to cylinder 54, which is pivotably coupled to pivot arms 14.
Cylinder 54 pivots roll of material 15 towards roller III. The
pivotable movement of the roll of material is stopped by a
photodetection device 55 which is coupled to magnet valve 56 which
controls magnet valve 57, and magnet valves 58 and 59. Magnet valve
58 controls brake cylinder 60 which applies a brake drum to brake
cylinder (not shown) coupled to pivot arms 14. At the same time,
magnet valve 59 admits air to cylinder 54 to stop movement of the
piston contained therein.
When the winding apparatus has reached the above-described
position, magnet valve 61 is energized by an impulse from terminal
44 of meter counter 40, the scanner, or switch 46, and admits air
to cylinder 62. Cylinder 62 moves the cutter 51, which is mounted
on a frame 63, upwardly in guide tracks towards the web of material
spanning the distance between roller II and roller III. When the
cutter 51 reaches the web of material, the web is severed, and
frame 63 releases a roller lever valve 64 which admits air to feed
means 65 which may be an elongated cylindrical-shaped pipe having a
plurality of air nozzles or a slit provided therein for directing
the air towards the severed end of the web of material and forcing
the web around the new take-up roller provided between rollers I
and II. During upward movement of the piston of cylinder 60, the
cylinder is drained by direct outlets provided in the cylinder.
When the frame 63 reaches the full extent of its upward travel,
switch 65 and roller lever valve 66 is engaged. The switch
interrupts the impulse transmitted by terminal 43 from meter
counter 40, to valve 61, shuts off motor 54, cutter 51, and
switches off magnet valve 67 which is coupled to cylinder 62. Air
is then admitted to cylinder 62, above the piston thereof, and
frame 63 is retracted downwardly into its original position. As the
cutting means retracts, roller lever valve 64 shuts off the supply
of air to feed means 65, and roller lever valve 66 shuts off the
supply of air to brake cylinder 60 through valve 58, and admits air
to magnet valve 57, thus shutting off valve 56 which is controlled
by photodetector 55. The brake cylinder 60 is thus released, and
the roll of material 15 is pivoted outwardly by cylinder 54 until
the roll of material slips from guide tracks 13 onto receiving
platform 42. As the pivot arms 14 are pivoted outwardly, their
coupled arm 31 engages magnet valve 67, which admits air to magnet
valve 53 and returns it to its original position. Cylinder 54 is
then activated by the air admitted thereto by valve 53, and pivots
pivot arms 14 back towards its original vertically-disposed
position. When arm 31 engages roller lever valve 68, the valve is
actuated and admits air to magnet valve 57 to return it to its
original position so that photodetector 55 may trigger the next
pivotable movement of arms 14 by means of valve 56. Activation of
valve 68 shuts off the supply of air to cylinder 54, and the pivot
arms rest in their vertically-disposed position. The
above-described mechanical operation is repeated for each winding
of a roll of material on a winding spool.
The winding apparatus also includes a safety switch 69 which shuts
off power to the machine if a starting roll of material exceeds a
predetermined diameter, such as 120mm which is the diameter of
material which triggers the operation of the machine. Safety switch
70 is also provided on the winding apparatus, and prevents damage
to the machine caused by mechanical failure. The switch shuts off
magnet valve 45 until frame 63 has reached its fully retracted
position. Magnet valves 53 and 36 are thus inoperative, and
cylinders 37 and 54 cannot be reversed, when the cutting means is
not in its fully retracted position. The pivot arms thus remain in
their outwardly-disposed position, and mounting members 16 remain
in their vertically-disposed position, until the frame engages
switch 70.
Magazine 18 may be pivoted automatically by a pneumatic or
hydraulic cylinder (not shown) which is controlled by switch 39b
and switch 34. The pivotable portion of the magazine stores only
one roller at a time and may be provided with pneumatic lever arms
which disengage the rollers from the magazine. The vertical portion
of the magazine is stationary and stores the rollers which are
received one by one by the pivotable portion of the magazine. In
the embodiment illustrated in FIGS. 10-12, the magazine is
pivotably mounted on the winding apparatus towards its rearward
portion, and has a downwardly extending mounting arm on which a
rotatable wheel is secured for engaging roller I. The magazine is
biased by a spring means (not shown) so that the end thereof
disposed directly over the wedge between rollers I and II is moved
upwardly by the spring whenever winding roller I does not engage
the rotatable roller mounted on the magazine. A rigid cam member
(not shown), comprising a cylindrical rod is disposed upwardly
through an aperture provided in the magazine into the magazine
channel at the rearward portion thereof adjacent the magazine
opening next to the stationary magazine, so that only one winding
core is admitted to pivotable magazine 18 at one time. Thus, during
operation of the apparatus, when mounting members 16 are not in the
described vertically disposed position, roller I does not engage
the magazine roller and the spring pulls the pivotable magazine
backwardly about its pivotable mounting so that the channel in
magazine 18 admits a winding core from the vertical magazine
channel. As the spring pulls the magazine backwardly, the cam
enters the pivotable magazine channel at a point which is slightly
greater than the width of the winding cores so that only one
winding core is admitted to the magazine while it is disposed in
this position. When mounting arms 16 are returned to their
vertically disposed position by cylinder 37, roller I engages the
mounting roller and pivots the magazine downwardly about its pivot
point so that the end thereof is disposed directly above the wedge
between the winding rollers and the cam disposed in the magazine
channel is withdrawn. The winding roller disposed in magazine 18
then rolls down the magazine channel into the wedge formed between
rollers I and II.
The retaining means 33 which secure the ends of the winding cores
17 between the winding rollers during the initial winding operation
may be pivotably mounted sheet metal plates secured on magazine 18
at one end thereof. The plates are biased downwardly by spring
means (not shown) so that the ends of the sheet metal plates engage
the winding core and hold it securely between the winding rollers.
The spring means operate on the winding core in a manner similar to
a torsion spring. It should be noted that the vertical magazine of
the machine illustrated in FIG. 10 is loaded by an operator
manually until a desired number of winding cores are disposed in
the vertical magazine. Magazine 18 will then automatically admit
one winding core as needed acccording to the above-described
operation.
FIG. 12 illustrates one embodiment of a cutting means which may be
utilized to sever the web of material on the winding apparatus. A
plurality of polygonal-shaped cutting blades 71 are disposed on the
chain-link drive belt 72 which is rotated by gear 73 driven by an
electric motor. Any number of motors may be utilized according to
the requirements of the winding apparatus. As previously mentioned,
a single cutting blade which is pneumatically or hydraulically
projected upwardly, may also be used to sever the web of
material.
It should be noted that although a winding apparatus having an
automatic pneumatic control system has been shown and described,
the entire winding apparatus may be controlled manually by an
operator. In such a winding apparatus, the operator would provide
the necessary starting signals for each of the described
operations, such as, for example, the activation of the cutting
means, the raising of platform 42, etc., from a remote control
panel. Motor 50, pump 49, and cylinders 52, 54, 37, 62 and 60 as
well as the other pneumatically-activated components of the winding
apparatus, would be controlled from a remote control panel by
manual switches. The operator would activate each component of the
winding apparatus at the proper time as a result of his visual
observation of the stages of the winding operation. The automatic
control system for the winding apparatus is, of course, one of many
which may be utilized, and many conventional suitable methods of
control are disclosed by the prior art.
While only several embodiments of the present invention have been
shown and described, it will be obvious to those persons of
ordinary skill in the art that many changes and modifications may
be made thereunto without departing from the spirit and scope of
the invention.
* * * * *