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Патент USA US3029505

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April 17, 1962
J; G. RZESzUTKO ETAL
3,029,493
APPARATUS FOR FORMING CORELESS ROLLS OF' FIBROUS WOOL RIBBON
Filed Sept. 29, 1959
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April 17, 1962
J. G. RzEszuTKo ETAL
3,029,493
APPARATUS FOR FORMING coRELEss RoLLs oF FIBRoUs wooL RIBBON
Filed sept. 29, 1959
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April 17, 1962
J. G. RzEszUTKo ETAL
3,029,493
APPARATUS FOR FORMING CORELESS ROLLS OF' FIBROUS WOOL RIBBON
Filed Sept. 29, 1959
6 Sheets-Sheet 3
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April 17, 1962
J. G. RzEszUTKo ETAL
3,029,493
APPARATUS FOR F‘ORMING CORELESS ROLLS OF FIBROUS WOOL RIBBON
Filed Sept. 29, 1959
6 Sheets-Sheet 4
April 17» 1962
3,029,493
J. G. RzEszuTKo ETAL
APPARATUS FOR FORMING CORELESS ROLLS OF FIBROUS WOOL'RIBBON
Filed Sept. 29, 1959
6 Sheets-Sheet 5
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April 17,-1962
J. G. RzEszuTKo ETAL
3,029,493
APPARATUS FOR FORMING coRELEss RoLLs oF FIBRoUs woor. RIBBON
Filed Sept. 29, 1959
6 Sheets-Sheet 6
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3,029,493
Patented Apr. 17,v 1962
1
2
scope of the invention reference may now be had to the
3 029,493
accompanying drawings wherein:
APPARATUS FÜR FÓRMlNG COREL-ESS ROLLS
FIG. l is a side elevational view of a preferred form
0F FEBROUS WQDL RIBB'ON
of the invention;
Joseph G. Rzeszutlro and Frank P. Lawler, Chicago, lll.,
assignors to .iarnes H. Rhodes ¿it Company, Chicago,
FIG. 2 is an enlarged cross section taken generally
along the line 2_2 of FIG. 1;
lll., a corporation or' Iliinois
Filed Sept. 29, 1959, Ser. No. 843,283
"l Claims. (Cl. 29-1)
FIG. 3 is an enlarged cross sec ion taken generally
along the line 3_3 of FIG. 1;
FIG. 4 is an enlarged cross section taken generally
The present invention relates to apparatus for form 10 along the line 4_4 of FIG. I;
ing coreless rolls of fibrous material, particularly steel
wool ribbon.
FIG. 5 is an enlarged cross section taken generally
An earlier and different apparatus for
performing this operation is disclosed in expired US.
Patent No. 1,968,310 to Peterson.
For convenience, the present invention is described
herein as an apparatus for forming coreless rolls of steel
wool ribbon. It is to be understood, however, that the
apparatus also has utility for rolling any kind or" fibrous
material such as bronze wool, plastic wool, etc.
An important object of the invention is to provide a
new and improved apparatus for forming coreless rolls
of steel -wool ribbon and the like wherein the ribbon of
along the line 5_5 of FIG. l;
FIG, 6 is an enlarged cross section taken generally
along rthe line 6_6 of FIG. l;
FiG. 7 is an enlarged right end view of the pinch
roller assembly taken generally along the line ’7_7 of
FIG. 1;
FlG. 8 is an enlarged longitudinal vertical section of
the roll initiating portion of the apparatus shown in
20 FIG. l and illustrating in broken lines the formation of
a coreless roll of steel wool ribbon;
FIG. 9 is a cross section taken generally along the
steel wool may be directed from a steel wool producing
machine directly to the apparatus which then rolls and
line 9_9 of FIG. 8;
FIG. l0 is an enlarged side elevational view of the
rotary cutter assembly shown in FIG. l;
cuts the ribbon in a manner such that the rolls discharged
from the apparatus are substantially uniform in size and
FIG. l1 is a right end elevational View, partially in ~
weight.
vertical section, of the cutter assembly shown in FIG. l0
with the rotary knife blade shown rotated 90° toits up
Another object of the invention is to provide a new
permost position;
and improved apparatus of the character described which
is mobile and which may be moved between various 30
librous wool producing machines which are turning out
dilïerent grades of tibrous wool ribbon.
A more detailed object of the invention is to provide
FIG. 12 is an end elevation View of the cutter assem
ly brake taken generally along the line l2_12 of FIG.
1l;
FIG. 13 is a reduced scale top plan View of the up
a new and improved apparatus of the character de
per pinch roller illustrated in FIG. 7.
scribed wherein a ribbon of steel wool or the like is ad 35
The embodiment of the invention illustrated in FIG. 1
vanced onto a ñrst conveyor for movement beneath a
comprises a Series of basic structures, namely, a sup
drag device which turns up the end of the ribbon and
porting base 10, a lower conveyor 11, an upper conveyor
initiates the formation of the roll thereof after which
12, a drag device 13 for initiating the formation of the
the initially formed roll is advanced by the first con
coreless rolls of steel wool ribbon or the like, a pinch
veyor beneath a second conveyor moving in the opposite 40 roller assembly 1d for pulling a ribbon of steel wool into
direction at a somewhat lesser rate of speed whereby the
the apparatus, and a rotary knife assembly 15 for cut
ditiîerential action of the two conveyors eñfects continued
ting the ribbon of steel wool. Suitable drive and control
formation of the roll of ribbon while simultaneously ad
means are also provided.
vancing the roll toward the discharge end of the ap
The supporting base 1u is an elongated, generally rec
paratus.
,
A further object of the invention is to provide a new
and improved apparatus of the character described where
in a timer-actuated cutter is provided for cutting the rib
bon of fibrous wool at uniform intervals whereby the
rolls of ribbon discharged from the apparatus are sub~
stantially uniform in size and weight.
Another important object of the invention is to pro
45 tangular open-frame type structure including a series of
lower, horizontally disposed support members 18, a series
of upper horizontally disposed support members 19, a pair
of vertically extending end support members ZÜ at one
end thereof, a pair of vertically extending end support
~ members 21 at the opposite end thereof, and a series
of inclined brace members 22. The pair of vertical end
members 2li extend somewhat above the upper support
members 1.9 and the pair of vertical end members 21
vide a new and improved apparatus of the character de
scribed wherein the drag device, which because it is pref 55 extend a substantial distance above the upper support
members 19 for purposes which will be self-evident here
erably forme-d partially of felt and is subjected to wear
inafter. A pair of vertical support plates 23 are secured
by the steel wool ribbon or the like, is easily and quickly
to the upper ends of the end support members 21 and
replaceable without shutting down the apparatus.
extend in a direction away from the supporting base .10
Another object of the invention is to provide a new
whereby to support the pinch roller assembly 14 and the
and improved apparatus of the character described which
is readily adjustable whereby to permit the formation of
rolls of fibrous wool ribbon of different sizes, of diderent
weights, and of different grades and material.
rotary knife assembly 15 therebetween. The supporting
base lill is supported on a series of pivotable casters `Z-’i
whereby the apparatus is mobile and may be readily
moved between various steel wool machines producing
different grades of steel >wool ribbon, between diiîerent
Further objects or“ the invention are to provide appara
tus of the character described which is economical to 65 ribbon stations of the same machine, or to a position
fabricate, sturdy, and adaptable for various conditions
adjacent a previously manufactured stock of steel wool
and requirements, which is simple and efñcient in oper
ribbon.
a
ation, and which requires little maintenance.
A variable speed drive motor 25, whose speed is readily
Certain other obiects of the invention will, in part, be
70 adjustable by means of a hand crank 26, is centrally sup
obvious, and will in part appear hereinafter.
ported within the open frame supporting base 10 on `a
For a more complete understanding of the nature and l
plate member 27 which is suitably secured between a
3,029,493
pair of the lower support members 18. The motor 25 is
provided with a drive shaft 2S which carries a small
sprocket 29. A pair of side plates Sti are secured be
tween the lower and upper support members 18 and 19
of the supporting base 10 adjacent the vertical end sup~
port members 21. A jackshaft 31 is rotatably supported
by a pair of bearing blocks 32 each of which is secured
to one of the side plates 30. The jackshaft 31 carries a
large sprocket 33 which is driven by an endless chain 34
a plurality of uniformly spaced transverse or laterally
extending cleats 67 which may be either riveted or sewn
onto the belt or even formed integrally therewith. Dur
ing operation of the drive motor 25, the pulley 55 is driven
in a direction such that the upper run of the belt 66 moves
toward the projecting end of the lower conveyor `frame
4ta which is the discharge end of the apparatus.
A pair of sidewalls or guideways 70 extend upwardly
from the horizontal plate portion 41 of the lower con
veyor frame 40 with each being disposed closely adjacent
which passes around the small sprocket 29 on the drive 10 to a margin or edge of the belt 66. The sidewalls 70
shaft 28 of the motor 25. The jackshaft 31 also carries
extend generally the whole length of the lower conveyor
a small sprocket 35.
frame 46 with their height increasing gradually toward
The lower conveyor 11 (FIGS. l-4) includes a frame
the discharge end of the apparatus. Each sidewall 70
40 which is characterized by an elongated tlat plate mem
is suitably braced by an attached angle bracket member
ber 41 having elongated angle members attached thereto
71 which is secured to the Hat plate member 41 of the
in a manner to provide depending side ñanges 42. The
lower conveyor frame 4th has one end pivotably mounted
between the vertical end support members 21 of the sup
lower conveyor `frame 40.
The upper conveyor 12 is supported directly on the
lower conveyor frame 40 as will now be described. The
upper conveyor 12 includes a frame 75 which is char
porting base 10 somewhat above the upper horizontal
support members 19 thereof. A suitable pivot pin 43
acterized by a pair of elongated, vertically disposed plate
extends between the vertical support members 21 and the
members 76 which are spaced apart in parallel alignment
side flanges 42 of the lower conveyor frame 4t). The
by two sets of transverely extending brace members 77.
opposite end ofthe lower conveyor frame 4t) is adjustably
The two sets of brace members 77 are located near oppo
supported at a point spaced a substantial distance in Y site ends of the upper conveyor frame 75 and adjacent
from the end thereof between the vertical end support
the upper portions of the plate members 76.
members 20 of the supporting base 10 whereby a sub
One end of the upper conveyor frame 75 is pivotably
stantial portion of the lower conveyor 11 projects be
mounted (FIGS. 1 and 4) between a pair of upright ear
yond the vertical end supports 20 of the supporting base
members 60 which have dat base portions secured to the
10. In the embodiment shown in FIG. 1, approximately
ilat plate member 41 of the lower conveyor frame 40
one-third of the length of the lower conveyor 11 projects 30 outwardly of the sidewalls 70. 1f necessary, spacer bars
beyond the end of the supporting base 1t). A suitable
79 may Abe disposed between the plate 41 and the base
support pin 44 is adapted to be inserted through the side
portions of the ear members 80. In the embodiment
flanges 42 of the lower conveyor frame 40 and through
illustrated in FIG. l, the ear members 80 are located
one pair of a series of vertically spaced pairs of openings
approximately in vertical alignment with the longitudinal
35
formed in the vertical end support members 29 whereby
midpoint of the mobile supporting base 10. Adjacent
the lower conveyor frame ‘tti may be supported in a
ends of the elongated plate members 76 of the upper con
horizonztal position or in positions inclined slightly above
veyor frame 75 are each secured to one of a pair of bear
or below the horizontal position. In FIG. l, the lower
ing blocks S1 each of which is rotatably mounted in a
conveyor frame 40 is supported with the projecting end
bore formed in one of the ear members 80. A jackshaft
thereof inclined slightly upwardly from the pivotably 40 82 is rotatably supported by the two bearing blocks 81
connected end thereof.
and has a pulley 83 and a sprocket 84 keyed thereto.
Referring now to FIGS. 1 and 2, a pair of support
An endless chain 85 extends around the sprocket £4 and
plates 59 depend from the side flanges 42 of the lower
the sprocket 56 carried on the shaft 52 whereby the pulley
conveyor frame 4t) at the end thereof adjacent the pivot
33 is driven counter-clockwise (as viewed in FIG. l)
pin 43. A pair of bearing blocks 51 are mounted one on
when the drive motor 25 is operated. The arrangement
each of the plates 5G and a jackshaft 52. is rotatably sup
is such that the perimeter of the pulley 83 rotates a rela
ported therein. A large sprocket 53 is keyed to the jack
tively short distance above the upper run of the cleated
shaft 52 and is driven by means of an endless chain 54
lower conveyor belt 66.
which extends around the sprocket 35 on the jackshaft
The opposite ends of the spaced apart elongated plate
50
31. A pulley 55 and sprockets 56 and 57 are also keyed
members 76 of the upper conveyor frame 75 are provided
to the jackshaft 52. The radius of the pulley 55 is sub
with projecting tongues each of which supports a bearing
stantially equal to the distance between the aids of the
lock 86. A jackshaft 87 is rotatably supported by the
jackshatt 52 and the upper surface of the horizontal plate
two bearing blocks 86 and has a pulley 88 keyed thereto.
portion 41 of the lower conveyor frame 49. rI‘he hori
The projecting tongues of the plate members 76 are pro
zontal plate portion 41 of the lower conveyor frame di?
vided with elongated slots 89 to permit adjustment of
terminates at a point to the left of the axis of the jack
the jackshaft 87 relative to the tongues by means of adjust
shaft 52 (as viewed in FIG. l of the drawings) for a
ing screws 96 whereby the center-to-center distance be
purpose which will be obvious hereinafter.
tween the pulleys 83 and 8S may be readily adjusted in a
As best illustrated in FIGS. 1 and 3, a pair of support
well-known manner. An endless conveyor belt 91 extends
plates 60 depend from the projecting end of the lower 60 around the pulleys 83 and 38. During operation of the
conveyor frame 40 and include portions extending some
drive motor 25, the pulley 83 is driven in a direction such
what forwardly thereof. The plates 6G each support a
that the lower run of the upper conveyor belt 91 moves in
bearing block 61 between which extends a freely rotatable
a direction away from the discharge end of the apparatus
jackshaft 62. A pulley 63, which is the same size as the
and opposite to the movement of the upper run of the
pulley 55, is keyed to the jackshaft 62. The forwardly 65 lower conveyor belt 66 disposed therebelow.
extending portions of the mounting plates 69 are each
In the embodiment of the invention shown in the draw
provided with an elongated slot 64 whereby the jackshaft
ings, the pulleys 83 and 88 of the upper conveyor 12 are
62 may be adjustably shifted relative to the plates 69 in
the same size as the pulleys 55 and 63 of the lower cona well known manner by means of adjusting screws 65
veyor 11.
For a reason which will be fully explained
whereby to adjust the center-to-center distance between 70 hereinafter the sprockets 56 and 84 are selected such that
the pulleys 55 and 63.
the ratio of the speed of movement of the upper conveyor
An endless conveyor belt 66 which may be formed of
belt 91 to the speed of the lower conveyor belt 66 is in the
any suitable belt material extends around the pulleys 55
order of 8:10.
and 63. The belt 66 is approximately the same width as
the ribbon of steel wool to be rolled and is provided with 75 Adjustable support means are provided for the upper
3,029,493
6
‘U
conveyor 12 adjacent the end thereof carrying the pulley
S8 whereby the end of the upper conveyor 12 may be
pivotably raised and lowered relative to the lower con
veyor 11. -The apparatus is therefore readily adaptable
for forming coreless rolls of steel wool ribbon of Various
diameters. The adjustable support means, as best illus
trated in FIGS. l and 6, comprises a pair of upright posts
'95 which are spaced in lateral alignment at opposite sides ,
of the upper conveyor frame 75 and are secured at their
lower ends to the flat plate 41 of the lower conveyor
frame 41D. A cross bar 96 is secured to the upper ends of
the two posts 95 and is provided adjacent one end thereof
with a pair of spaced apart upright members 97 and 98.
A horizontally disposed shaft 99 is rotatably supported in
produced supply thereof or directly from a steel wool
producing machine onto the lower conveyor belt 66, is
best illustrated in FIGS. l, 7 and 13. The assembly 14 in
cludes a pair of pinch rollers 4120 and 121 disposed one
above the other with the lower roller 120 being driven
and the upper roller 121 being freely rotatable. The
driven roller 120 is mounted on a jackshaft 122 which is
rotatably supported by a pair of bearing blocks 123 each
of which is secured to one of the supporting plates 23
mounted on the upper end of the vertical end supports
21 of the supporting base 21€); Asprocket 124 and a Spur
gear 125 are keyed to the jackshaft 122. To provide a
drive for the lower pinch roller 120 (counter-clockwise
as viewed in FIG. 1) an endless chain 126 extends around
aligned bores formed in the upright members 97 and 9S 15 the sprocket 124 and around the sprocket 57 keyed to the
and has a handle 11)@ pinned to one end thereof and a
jackshaft 52 upon which shaft the pulley 55 is mounted.
ruiter or bevel gear 101 pinned to the opposite end there
The upper pinch roller 121 is carried on a jackshaft 127
of. A mating miter or bevel gear 1132 is rotatably sup
which is rotatably supported by a pair of bearing blocks
ported on the `cross bar '96 in meshing engagement with
128 each of which is mounted on one of a pair of arms
the gear 161 and with its axis in vertical alignment with 20 129. Adjacent ends of the arms 129 are each pivotably
the lateral midpoint of the upper conveyor 12. A threaded
mounted, as at 1311 in FIG. 13, on one of the supporting
rod 1113 extends vertically through the gear 102, which
plates 23 whereby the upper pinch roller 121 is held
has an internally threaded bore 130.1 therein, and down
against the lower pinch roller 120, or a ribbon of steel
wardly through a bore 1115 formed in the cross bar 96.
Wool disposed therebetween, by its own weight. The op
A bifurcated or U-shaped member 106 is secured to the 25 posite ends of the arms 129 are interconnected by a rod
lower end of the threaded rod 193 and has a pair of
131 which is provided with a pair of vertically extending
laterally spaced arms 197 which extend downwardly
alongside the spaced apart elongated plate members 76 of
the upper conveyor frame 75. A pivot pin 108 extends
slidably adjustable guide members 132. The guide mem
bers 132 center the ribbon of steel wool being pulled into
the apparatus by the pinch rollers 120 and 121. To start
through the arms 107 of the bifurcated member 106 and l30 a ribbon of steel wool through the apparatus, the upper
through the spaced apart members 76 of the upper con
roller 121 is manually lifted after which the forward
veyor frame 75 whereby the end of the upper conveyor
end of Ithe ribbon of steel wool is inserted between the
12 adjacent the pulley S8 is supported by the threaded rod
guide members i132 and over the lower pinch roller 120
163 which is in turn adjustably supported by the gear 102.
after which the upper pinch roller 121 is released for con
When the handle 1110 is rotated, the gear 102 is rotated*v 35 tacting engagement with the upper surface of the ribbon
through its meshing engagement with the gear 101 whereby
of steel wool. During operation of the drive motor 25,
the threaded rod 103 is either adjustably moved upwardly
the two pinch rollers 129 and 121 co-act in a well-known
or downwardly relative to the gear 102 to either raise or
lower the end of the upper conveyor 12 adjacent the dis
charge end of the apparatus. In FIGS. 1 and 8, the l'
angle between the upper conveyor 12 and the lower
conveyor 11 is approximately 7° which has been found to
be a suitable angle for forming rolls of steel wool ribbon
manner to pull the ribbon of steel wool into the appara
tus. In the embodiment of the invention shown in the
drawings, the axes of the two pinch rollers 120 and 121
are in vertical alignment. As various grades of steel wool
may be processed by the apparatus disclosed herein, the
arms 129 are provided with elongated slots (not shown)
approximately 8” in diameter.
whereby to permit shifting the axis of the upper roller 121
An adjustable elongated backing member or shoe 112 is
relative to the axis of the lower roller 120. This adjust
provided for engagement with the upper surface of the 45 ment permits the angle at which the ribbon of steel wool
lower run of the upper conveyor belt 91. The shoe 112 is
leaves the roller assembly 14 `to be retained relatively uni
supported adjacent its opposite ends by a pair of rods 113
form ldespite the various grades of steel wool ribbon being
which extend `upwardly through bores formed in the
pulled into the apparatus by the pinch rollers 120 and 121.
transversely extending ybrace members 77 of the upper 50 A channel-shaped trough or chute 133 may be provided
conveyor frame 75. The upper ends of the rods 113 are
to direct the ribbon of steel wool from the pinch roller
threadedly engaged in nuts 114 which are rotatably con
assembly 14 onto the upper run of the lower belt conveyor
fined between the uppermost transversely extending brace
1'1 at a point thereon located between the pulley 55 there
members '77 and inverted U-shaped members 115 mounted
of and the pulley 83 of the upper belt conveyor 12.
thereon. By spinning the nuts 114, the rods 113 may be 55
After the ribbon of steel wool is directed onto the upper
raised or lowered to decrease or increase, respectively, the
run of the belt 66, it is advanced by the cleats 67 thereon
compressive and frictional forces exerted Iby the lower
toward the drag device '13 which is adapted to initiate the
run of the upper conveyor belt ‘91 on the rolls of steel
formation of a coreless roll of steel wool ribbon. The
wool ribbon being formed between the lower belt 66 and
drag device 13 and the initiation of the formation of a
the upper belt ‘91. The formation of the rolls of steel
60 coreless roll of steel wool ribbon are best'illustrated in
wool ribbon will be fully described hereinafter.
FIGS. 8 and 9. The drag device 13 includes elements
As best illustrated in FIG. 6, the hat plate member 41
'Which'are more or less permanently assembled in the ap
or" the lower conveyor frame 411, the sidewalls 76 and the
paratus and a readily replaceable pickup cartridge 139.
shoe 112 define a rolling channel or tunnel 119 which is
Briefly, the permanently assembled'elements include a
generally rectangular in cross section with the height there
65 pivotably mounted upper `guide block 141i and a rigidly
of increasing progressively toward the discharge end of
the apparatus.
The upper run of the lower conveyor
mounted anchor block 145.
`
The upper guide block 140 is pivotably mounted adja
belt 66 is movable along the lower surface of the rolling
cent the pulley 83 of the upper conveyor 12 on a pivot
`channel 119 toward the discharge end 0f the apparatus and
pin 141 which extends between the sidewalls 70 and the
the lower run of the upper conveyor belt 91 is movable
angle brackets ’71. An elongated upper guide member
adjacent the underside of the upper surface of the rolling 70 142 which is formed of spring material is secured at one
channel 119 in a direction away from the discharge end of
end to the underside of the guide block 140 and is curved
the apparatus.
in a manner such that the other end thereof extends be
The pinch roller assembly 14, which is adapted to
neath the pulley 83 and a considerable distance beyond
advance a ribbon of steel `wool from either a previously 75 the block 140. As the pivot pin 1411 is disposed between
3,029,493
7
the projecting end of the guide member 142 and the cen
ter of mass of the block 140, the projecting end of the
point, the action ofthe upper conveyor belt 91 would tend
to pull fragments of the steel wool over the end of the
guide member 142 and interfere with the proper forma
guide member `142 is normally pivoted upwardly and
tion of the roll if the end of the upper guide member 142
into contacting engagement with the lower run of the
were not held in engagement with the lower run of the
upper conveyor belt 91, the guide member `142 being ap Ul upper
conveyor belt 91 as hereinbefore described. As
proximately the same width as the belt 91. 1f desirable,
the upper conveyor belt 91 is moving at a slower rate of
a counterweight or spring means may be associated with
speed than the lower conveyor belt 66, the progressively
the block 140 to insure this engagement between the guide
growing roll of steel wool ribbon will have a continuous
member 142 and the belt 91. The purpose for this en
forward motion toward the discharge end of the appara
10
gagement between the end of the guide member 142 and
tus at a speed substantially less than the speed of the
Ithe belt 91 will be fully explained hereinafter. By remov
ing the pivot pin 141, the guide block 140 and the guide
member 142 may be removed from the apparatus if this
should appear necessary or desirable.
lower conveyor belt 66. As before stated herein, it has
been found that the speed of the upper belt 91 should
preferably be approximately 80% of the speed of the
belt 66.
The anchor block 145 is rigidly mounted between the 15 lower
The differential action of the two belts 66 and 91 on
the roll of steel wool ribbon is highly effective for con
tinued formation of the roll as the roll is moved toward
mined angle to a plane which is disposed normally to and
the discharge end of the apparatus and permits the for
transversely of the lower conveyor 11. In the embodi
mation of a sizable roll during a relatively short forward
20
ment shown in the drawings an angle of approximately
motion of the roll itself. This advantageous feature
12° has been found to be suitable. An anchor pin 147
negates the apparatus being so long that it takes up valu
is permanently mounted in the anchor block 145 and it
able space and is unwieldy to shift from one location to
projects from the outer face thereof at right angles thereto
another. Inasmuch as, the upper conveyor belt 91 exerts
whereby to provide a mounting means for the replaceable
sidewalls 70 on a pair of pins 146 which extend there
between. The anchor block 145 is mounted at a predeter
pickup cartridge `139.
25 an opposite frictional force on the upper portion of the
roll being formed there is a more rapid roll formation
between the belts 66 and 91 than between the felt pads
157 and 159 and the belt 66 as the pads merely exert a
the width of which is somewhat less than the distance be
static force on the upper portion of the roll being formed.
tween the sidewalls 7i), a block 151 which is secured be
The backing shoe 112 for the lower run of the upper con
tween the ends of the spaced apart arms 149 of the mem 30 veyor belt 91 may be adjusted as previously described
ber `150 and spaced from the closed end 143 thereof, and
herein to vary the formation of the roll by varying the
a clamping bar 152 between the arms 149 which is slid
compression and frictional forces exerted by the belt 91
able between the block 151 and the closed end 14S of the
on the roll.
member 150. The block 151 is provided with a pair of
During the later part of the formation of the roll be
adjustable clamping bolts 153 the ends of which are en 35 tween the belts 66 and 91 some tension will develop in
gageable in recesses formed in the clamping block 152
the ribbon of steel wool between the roll and the pinch
whereby a series of drag or pickup members may be
rollers 120 and 121. To prevent the ribbon of steel wool
clamped between the clamping bar 152 and the closed
from being pulled across the relatively sharp edge of the
end 148 of the member 150. The block 151 is provided
pickup cartridge 139 when this occurs, a guide roller 161
with a central bore 154 whereby the pickup cartridge 139 40 is mounted between ythe sidewalls 70 to the right and below
may be fitted on the anchor pin v147 or removed there
the pickup cartridge 139 (as viewed in FIG. l) with the
from very rapidly. In the pickup cartridge 139 shown
ribbon of steel wool being adapted to pass under the guide
in FIGS. 8 and 9, the drag members include a lower felt
roller 161. The fact that there is some tension devel
pad or tongue 157, a tongue 15S formed of spring metal
oped in the ribbon of steel wool during the latter portion
which overlies the felt tongue 157 and normally biasesv - of the formation of the roll is very important as will be
the end of it downwardly into contact with the upper run
described hereinafter in detail.
of the lower conveyor belt 66, and a substantially longer
The arrangement and selection of the drag or pickup
felt pad or tongue 159 which overlies the spring metal
members for the pickup cartridge 139 may be widely
tongue 15S. The end of the felt tongue 159 should not
varied for various conditions and materials being rolled.
extend beyond the end of the upper guide member 1.42.
For instance, the felt pad 157 and the spring tongue 15S
As the forward end of a ribbon of steel wool is ad
could be replaced by a single felt pad of greater thickness
vanced toward the drag device 13 by the lower conveyor
the weight of which would be sufficient to hold the end
belt 66, it is engaged by the lower felt pad 157 which picks
of it against the belt 66 and insure a proper pickup of the
up and turns back the end of the ribbon and thus initiates
end of the ribbon of steel wool. The pickup tongues may
the formation of a coreless roll of steel wool ribbon. The
also be formed of various other materials, such as rub
felt pad 157 extends away from the U-shaped member
ber-like material and certain plastics, to suit different
The pickup cartridge 139, as best shown in FIGS. 8 and
9, comprises an upwardly opening U-shaped member 150
150 and the anchor block 145 at generally right angles
inherent characteristics of various materials being rolled.
thereto whereby the end of `the felt pad 157 is normally
When felt is used to form the drag or pickup members,
disposed at an angle of approximately 12° to the upper
it is obvious that there will be some wearing of the felt
run of the lower conveyor belt 66. Although this angle 60 due to the frictional engagement thereof with the steel
has been found to provide an effective ribbon-pickup
wool. With the replaceable pickup cartridge 139 dis
characteristic for the embodiment illustrated and de
closed herein, it is a simple matter to remove the cartridge
scribed herein, this angle may be varied to suit other con
from the anchor pin 147 when the felt tongues thereof
ditions. As the initially formed roll of steel wool ribbon
have become worn, during the period the roll is being
is advanced through the apparatus the frictional engage
formed between the belts 66 and 91, and replace it with
ment of the felt pads 157 and 159 >with the upper portion
a cartridge having new felt tongues clamped therein.
thereof effects continued formation of the roll. As the
With the structural arrangement disclosed herein, this car
roll of ribbon increases in size the felt pad 159 is raised
tridge replacement can be accomplished in a matter of
upwardly against the guide member 142. The progres
seconds and without shutting down the apparatus. Obvi
70
sive formation of a single roll of ribbon is illustrated in
ously, this is a very important advantage, particularly
broken lines in FIG. 8. When the roll of ribbon passes
during periods of heavy demand for a continuous produc
the end of the upper guide member 142, the upper por
tion
of rolls of steel wool ribbon.
tion thereof is frictionally engaged by the lower run of
Provision is also made for cutting the ribbon of steel
the upper conveyor belt 9-1 which is moving in a direc
wool at uniform intervals whereby the completed rolls
tion opposite to the forward motion of the roll. At this
3,029,493
discharged from the apparatus will be substantially uni
form in weight. As shown in FIG. 1, the rotary knife as
sembly 15 is disposed adjacent the pinch roller assembly
14. The details of the rotary knife assembly \15 are best
shown in FIGS. 10, 1l and 12. A jackshaft 165 is ro
10
An arm 134 which is pivotably mounted intermediate its
ends on a pin 185 has an upper end 136 which is engage
able with the radial shoulder 183 of the clutch cam 182.
When the end 186 of the arm 184 is in engagement with
the radial shoulder 183 of the clutch cam 132, the clutch
180 is disengaged from the jackshaft 165 and the rotary
tatably supported by a pair of bearing blocks ‘166 each of
which is secured to one of the supporting plates 23. A
knife blade 176 is retained in its normally stopped posi
pair of spaced apart arms 167 are rotatably mounted at
tion by the brake 19d. A spring 16,7' is connected between
adjacent'ends thereof on the jackshaft 165 by means of
an anchor bracket 188 and the opposite lower end of the
ball bearings .168 with each arm `167 being disposed ad 10 Yarm 164 whereby to normally urge the end 186 of the arm
jacent fthe inner surface of one of the support plates 23».
18a into its clutch disengaging position in contact with the
A knife ‘blade 169 having a cutting edge 170 is secured
radial shoulder 183 of the cam 182.
between the opposite ends of the arms 167. A pair of
The lower end of the arm 184 is pivotably connected
linkage arrangements are provided for adjusting the posi
to a plunger 2% of a solenoid 2111. When the solenoid
tion of the knife blade 169 with each arrangement being 15 201 is energized, the plunger 26d is moved inwardly of
characterized by a vertically adjustable link member 171
the core thereof. This inward movement of the plunger
which is carried on the outer surface of one of the sup
20d pivots the upper end 186 of the arm 184- out of engage
ment with the radial shoulder 183 of the clutch cam 132
porting plates 23 and by a pin 172 which extends trans
versely between the upper end of the link member 171
whereby to positively engage the clutch ‘180 with the jack
and «one of the arms 167 intermediate the ends thereof.
shaft 165 and cause clockwise rotation of the rotary knife
The pins 172 extend through vertically elongated slots
173 formed in each of the supporting plates 23. By ad
justing the link members 171 in a vertical direction the
arms 167 are pivoted about the jackshaft 165 whereby .
blade 176 past the stationary knife blade 169, thereby cut
ting the ribbon of steel wool. An eccentric 2414 which is
associated with the clutch 1811 is rotatable only during
rotation of the jackshaft 1.65. The eccentric 2194 is adapt
to position the knife blade i169 relative thereto. The 25 ed upon rotation thereof to actuate a plunger 2115 of a
'knife blade 169 should be positioned so that the ribbon
limit switch 206 before the completion of a full revolution
of steel wool coming from the pinch roller assembly 14
of the jackshaft 165. Actuation of the limit switch Z116 by
passes over the cutting edge 170 thereof but preferably
the eccentric 2114 deenergizes the solenoid 201 thereby
not in engagement therewith so as to prevent the steel
permitting the spring 187 to pivot the arm 184 in a direc
wool from dulling the cutting edge `170. This blade ad 30 tion such that the upper end 1&3 thereof will be in posi
justment feature is provided because it has been found
tion for engagement with the radial flange 183 of the
that different grades of steel wool leave the pinch roller
clutch cam 182 whereby to disengage the clutch 130 from
assembly 14 at `different angles at any given speed Of the
the jackshaft '165. The rotary knife blade 176 may then
driven pinch roller 120. Once the knife blade 169 has
be brought to a stop by the brake 190 after a single revo
been properly adjusted for a particular grade of steel wool 35 lution thereof and until the solenoid 201 is again ener
and a particular ribbon feed rate, it is normally retained
gized.
in its adjusted position. Hereafter, therefore, the knife
The gearing 12S-131 is selected so that the rotary knife
blade 169 will be referred to as the stationary knife blade.
blade 176 is rotated past the stationary knife blade 169 at
As best illustrated in FÍG. 1l, a pair of rotary knife
a relatively fast rate of speed so that the newly cut forward
wheels 175 are keyed to the jackshaft 165 with each of the
end of the ribbon of steel wool will not jam up against the
wheels 175 being disposed adjacent the inner surface 0f
rotary knife blade 176. As before described herein, the
one of the stationary blade supporting arms 167. A
ribbon of steel wool is under some tension at the time the
rotary knife blade 176 having a cutting edge 177 is se
rotary knife blade 176 is rotated through its cutting stroke
cured in aligned notches formed in the perimeters of the
whereby the trailing end of the ribbon in the process of
two wheels 175 and extends therebetween. The normal
being rolled between the belts 66 and 91 will jump some
stopped position of the rotary knife blade 176, as illus 45 what ahead of the newly cut forward end of the ribbon of
trated in FIG. 10, is approximately 180° away from the
Steel wool. rl`his insures that there will be a gap between
stationary knife blade 169. The rotary blade 176 is
the trailing end of the ribbon being rolled and the forward
adapted to be periodically rotated past the stationary
end of the ribbon directed onto the upper run of the
knife blade 169 in a clockwise direction (as viewed in 50 lower conveyor belt 66. Without such a gap, the lower
FIG. 10) whereby to cut the ribbon of steel wool.
felt tongue 157 may not drop down into engagement with
.An adjustable friction brake 19t) which is disposed adja
the belt 66 which is its position for picking up and turning
cent one end of the jackshaft 165 exerts a continual brak
back the forward end of the following ribbon of steel wool
ing action thereon and tends to prevent rotation of the
whereby to initiate the formation of the next roll of steel
jackshaft 165. The brake 19t) is mounted on one of the
55 wool ribbon.
supporting plates 23 by means of an angular bracket 191
r[he solenoid 2111 is adapted to be energized to engage
and includes a brake drum 192 which is keyed to the jack
the clutch 180 with the jackshaft 165, as previously de
shaft 165, a brake lining 193 disposed about the brake
scribed herein, by an adjustable timer 210 which may be
drum 192, and an adjustable clamping member 194 which
mounted on the lower conveyor frame 40 in a position
is disposed about the brake lining 193, The braking ac 60 convenient to the operator of the apparatus. The timer
tion of the brake 19t? is adjustable in a well-known manner
211) is of a type well-known in the art and commercially
by a spring-tightening device 195 associated with the
available. As the timer structure comprises no part of
clamping member 194.
the invention it will not be described herein. By adjust
A single revolution clutch '180 of a well-known type,
ing the timer 210, the operator can control the length of
such as the single-revolution clutch which is fully dis
65 ribbon in the rolls and thus the weight of the rolls of
closed in expired Dickens Patent No. 2,140,737 and is
steel wool ribbon discharged from the apparatus. Once
commercially available from The Hilliard Corporation
the timer 210 has been adjusted as desired, the rolls of
of Elmira, New York, is carried on a reduced diameter
steel Wool ribbon discharged from the apparatus will be
portion of the jackshaft 165 and has a spur gear 181 keyed
substantially uniform in weight and size.
to one portion thereof. The spur gear 181 meshes with 70
The operation of the apparatus is relatively simple.
the spur gear 125 carried on the jackshaft 122 whereby
After the upper conveyor 12v has been adjusted to a de
the one portion of the clutch 18€) rotates continuously in
sired angle relative to the lower conveyor 11 and the timer
a clockwise direction (as viewed in FIGS. l and l0) dur
210 has been set to provide a roll of steel wool ribbon of
ing the operation of the drive motor 2‘5. A cam 182l hav
a desired weight and size for vthe selected speed of opera
ing a radial shoulder 133 is associated with the clutch ‘180. 75 tion of the apparatus, the forward end of the ribbon of
3,029,493
11
steel wool is inserted between the two pinch rollers 120
and 121. The drive motor 25 is then started and adjusted
for the desired speed of operation. If the steel wool rib
bon being rolled is being taken from a stock of previously
manufactured steel wool, the speed of the drive motor 25
may be set for any speed within its range of operation.
However, if the ribbon of steel wool being rolled is com
ing directly from a steel wool producing machine, the
speed of the drive motor 25 should be synchronized with
the output of the steel Wool producing machine so that
there will be just a slight dip in the ribbon between the
steel wool producing machine and the pinch roller assem
bly 14. In this situation it has been found that the speed
of the lower conveyor belt 66 should be approximately the
same as the output speed of the ribbon of steel wool com
ing from the steel wool producing machine, the speed of
the upper conveyor belt 31 being approximately 80%
thereof.
The ribbon of steel wool is thus pulled between the
pinch rollers 129 and 121, over the stationary knife blade 20
12
thereof, a second conveyor belt having a lower run mov
able through said channel adjacent the underside of the
upper surface thereof and toward the entrance end there
of, said upper run of said first conveyor belt and said lower
run of said second conveyor belt diverging in a direction
toward the discharge end of said apparatus, and drag
means separate from said first and second conveyor belts
positioned adjacent the entrance end of said roll-forming
channel and including an elongated friction member nor
mally engaging said upper run of said first conveyor belt,
said friction member being frictionally engageable with
the forward end of a ribbon of steel Wool advanced into
the entrance end of said roll-forming channel on said up
per run of said first conveyor belt whereby to turn the
forward end of said ribbon upwardly and rearwardly to
initiate the formation of a roll of ribbon, said friction
member being yieldable upwardly away from said upper
run of said first conveyor belt to permit the passage of
said initially formed roll end tlierebeneath and said oppo
sitely movable upper and lower runs of said first and sec
ond conveyor belts, respectively, serving to engage the
169 and down the chute 133 onto the upper run of the
formed end and continue the rolling of the ribbon into a
lower conveyor belt 66. The forward end of the ribbon
roll of ribbon relatively rapidly while advancing the grow
of steel wool is then moved toward and beneath the drag
ing roll toward the discharge end of said roll-forming
device 13 `whereby the forward end is picked up and turned
25
channel.
back upon itself to initiate the formation of the roll of
2. Apparatus as recited in claim l wherein said second
steel wool ribbon. The initially formed roll is moved past
conveyor belt is movable at a lesser rate of speed than
the drag device 13 until the upper portion thereof is fric
said first conveyor belt whereby to positively advance the
tionally engaged by the lower run of the upper conveyor
growing roll of ribbon toward the discharge end of said
belt 9i. whereby the formation of the roll is continued
while the roll continues its forward motion toward the 30 roll-forming channel during formation thereof.
3. tApparatus as recited in claim l wherein said separate
discharge end of the apparatus at a rate of movement
drag means comprises a pickup cartridge having a lower
which is relatively slow compared to the rate of movement
felt-like tongue and an overlying spring metal tongue
of the upper run of the lower conveyor belt 66. During
inter-connected at one end of each and positioned so that
the formation of the roll, the solenoid 201 is energized in
response to a signal from the timer 210 whereby to driv 35 the opposite ends thereof are inclined downwardly and
extend partially into the entrance end of said channel, said
ingly engage the continuously rotating spur gear 181 with
spring
metal tongue yieldably biasing said felt-like tongue
the jackshaft 165 through the clutch 180, thus causing a
downwardly against said upper run of said first conveyor
single revolution of the rotary knife blade 176 past the
belt whereby said felt-like tongue is frictionally engage
stationary knife blade 169 to cut the ribbon of steel wool.
With the drive motor 25 set at a specific setting, the 40 able with the forward end of a ribbon of steel wool carried
length of steel Wool ribbon in each roll discharged from
the apparatus may be varied by adjustment of the timer
on said upper run of said first conveyor belt to initiate the
formation of a coreless roll of steel wool ribbon by fric
tionally picking up said forward end of the ribbon of steel
2N. This of course is a means for controlling both the
wool and turning it back upon itself.
diameter and the weight of the rolls of steel wool ribbon
4. Apparatus as recited in claim 3 having an anchor
discharged from the apparatus. Once the timer 210 has 45
block
fixedly mounted adjacent the entrance end of said
been set as desired, the rolls of steel ribbon discharged
roll-forming channel, an anchor pin projecting from said
from the apparatus will be substantially uniform in weight
anchor block, and said pickup cartridge having a bore
and in diameter.
formed therein to permit mounting said cartridge on said
inasmuch as the drag members carried on the pickup
cartridge 139 may become worn periodically as a result of 50 anchor pin, said cartridge being easily removable from
said pin, as when said felt-like tongue becomes worn
their frictional engagement with the steel wool, an im
through frictional contact with the steel wool, whereby
portant feature of the invention lies in the fact that the
it may be quickly replaced with a cartridge carrying a new
cartridge carrying the worn drag members may be quickly
felt-like tongue, said arrangement permitting said pickup
removed and replaced by a cartridge carrying new drag
members in a matter of seconds whereby there is no neces 55 caltridge replacement to be completed in such a short pe
riod of time that the apparatus need not be shut down.
sity for shutting down the apparatus during such replace
5. Apparatus as recited in claim 3 wherein said pickup
ment.
cartridge is provided with a second felt-like tongue of
As previously mentioned, the apparatus of the present
greater length than said lower felt-like tongue overlying
invention is applicable for forming coreless rolls of fibrous
ribbon other than steel, such as bronze for example, or 60 said spring metal tongue for effecting continued forma
tion of the roll of steel wool ribbon prior to engage
even for materials other than metal such as plastic Wool
ment thereof by said upper and lower runs of said first
or the like.
and second conveyor belts, respectively.
lt will be understood that certain changes may be made
6. Apparatus as recited in claim 5 having a guide block
in the construction or arrangement of the apparatus for
forming coreless rolls of steel wool ribbon and the like 65 pivotably mounted immediately forward of said pickup
disclosed herein without departing from the spirit and
cartridge, and an elongated flat guide member having
one end secured to said guide block and the other end
scope of the invention as defined in the appended claims.
projecting beneath the lower run of said second con
We claim:
veyor belt, said guide member being disposed above said
l. Apparatus for forming a coreless roll of steel wool
ribbon and the like comprising, means providing an elon 70 second felt-like tongue and projecting slightly beyond
the end thereof, the pivotable mounting of said guide
gated roll-forming channel, said channel being generally
block being disposed between the center of mass there
rectangular in cross section and increasing progressively in
of and the projecting end of said guide member so that
height from its entrance end toward its discharge end, a
the projecting end portion of said guide member is nor
first conveyor belt having an upper run movable along the
bottom surface of said channel toward the discharge end 75 mally urged upwardly into substantially parallel engage
3,029,493
13
ment with the lower run of -said second conveyor belt
whereby to prevent the upper portion of the initially
formed roll of steel wool from being pulled back over
the upper surface of said second felt-like tongue by the
lower run of said second conveyor belt when said roll
is advanced by the upper run of said first conveyor belt
beyond the end of said second felt-like tongue and into
frictioual engagement with said oppositely moving lower
run of said second conveyor belt.
14
'l drive means for said rotary knife blade, a normally dis
engaged single-revolution clutch operably connected be
tween said rotary knife blade and said drive means there
for, a solenoid operable when energized to engage said
clutch whereby said rotary knife blade is rotated past
said stationary knife blade to cut said ribbon of steel
wool, said clutch being automatically disengaged after
a single revolution of said rotary knife blade, and an
adjustable timer for energizing said solenoid at uniform
intervals whereby the rolls of steel wool ribbon dis
7. Apparatus as recited in claim l having a pinch
roller assembly for advancing the forward end of a rib
charged from said roll-forming channel will be substan
bon of steel wool onto the upper run of said first con
tially uniform in size and weight.
veyor belt forwardly of the entrance end of said roll
forming channel, a stationary knife blade supported ad
jacent the exit from said pinch roller assembly whereby 15
said ribbon of steel wool passes over said stationary
knife blade, a rotary knife blade, continuously operable
References Cited in the file of this patent
UNITED STATES PATENTS
1,490,544
1,859,310
Stern _______________ -_ Apr. 15, 1924
Martin _____________ -_ May 24, 1932
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