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Патент USA US3023898

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March 6, 1962
Filed Sept. 25, 1958
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United States Patent Office
Patented Mar. 6, 19622
FIGS. 2 and 3 are sectional views on au enlarged scale
Wayne R. Scott, Salem, Mass., assignor to Prime Manu
facturing Company, Lynn, Mass., a corporation of
Filed Sept. 25, 1958, Ser. No. 763,349
2 Claims, (Cl. 206--~59)
This invention comprises a new and improved coil of
composite strip ribbing for welt insoles.
The ribbing to which this invention relates comprises
a tough, relatively thick core combined with tape adhesive
ly secured to the sides of the core, or a part thereof, and
showing the disposition of the ribbing in its layers in the
coil, and
FIGS. 4 and 5 are similar views of a somewhat diifer
5 ent type of ribbing.
The ribbing shown in FIGS. 2 and 3 comprises a
rectangular core 10 made of cardboard or similar tough
fibrous material forming the inner element of the ribbing.
To the opposite sides and one edge of the core 10 is ad
10 hesively secured a tape 11 having an ever-tacky or pres
sure-sensitive adhesive face 11’. As shown in FIGS. 2
and 3 the right hand face of the core 10 is completely
covered by the tape and this is Shown Ias extended in un
having portions extending free of the core and presenting
folded condition substantially beyond the exposed edge
ever-tacky or pressure-sensitive adhesive surfaces that may 15 of the core. The tape is folded continuously around the
be conveniently attached to the face of a flat insole in the
other edge of the core and adhesively attached to its other
form of a flange or flanges holding thelcore erect and
preferably at a slight inward inclination in convenient
position to receive the needle of a welt sewing machine.
side face over perhaps tive-sixths of its area. It is then
folded upon itself so as to expose an uncovered long-i
tudinal zone of the core 1U and extends downwardly sub
Ribbing of this general character has been supplied to 20 stantially beyond the cove-red edge of the core. It will be
the shoemaking industry heretofore in coils such as shown,
seen that the adhesively coated surfaces of both the un
for example, in United States Letters Patent No. 2,343,226,
folded and folded portions of the tape «face in the same
Feb. 29, 1944, Ridderstrom, with the adhesive surfaces
direction, that is, toward the left in FIGS. 2 and 3.
of the tape facing inwardly toward the axis of the coil.
The ribbing shown in FIGS. 2 and 3 is reversely wound
While such coils have been successfully used, difficulty is 25 by apparatus such as that illustrated in FIG. 1. Parallel
encountered from time to time in blocking of the ribbing
shafts 13 and 14 carry oppositely rotating feed rolls be
in the coil so that it does not run freely to the rib applying
tween which the tape is introduced with its uncoated surf
machine. The coils heretofore known must also be
aces upwardly directed. The tape may be led to the feed
mounted at an appreciable horizontal distance from the
rolls of the shafts 13 and 14 from the assembling machine
rib applying machine in order to enter freely and pass 30 where the core and tape `are assembled, or may be led
properly through the various introductory gauges of the
from a coil in which the ribbing is wound with its un
rib applying machine and this involves inconvenience to
coated surfaces upwardly directed. From these feed rolls
the operator.
the tape passes over a lead screw 15 to a pair of up
In laying preformed strip ribbing it has been found
standing rolls 18 projecting upwardly from a carriage 16
that the ribbing sometimes reaches the stripping guide on 35 mounted to slide freely on a transverse shaft 17. The
the rib laying machine with the iianges stuck together
carriage 16 has a leader which runs in the thread of the
beneath the core portion so that the stripping will not
lead screw 15 and imparts uniform transverse movement
properly pass through the guide.
It is not yet wholly certain what causes the iianges to
to the carriage 16 for determining the pitch and distribu
tion of the turns of the ribbing in the coil.
become joined in this way, but investigation shows that 40 The carriage 16 has an arm 20 which extends transverse
the adhesion when it has occurred has at »least for the
ly above the coil and carries at its outer end a shouldered
most part occurred in regions of the stripping wound in
feed roll 21 which insures laying the ribbing progressively
end convolutions of the supply coil. It is a possibility that
in a spiral with a pitch determined by the lead screw.
during the coiling of the stripping, as one layer of con
The ribbing is wound on a bobbin 23 carried by a driven
volutions is completed and another is commenced in 45 shaft 24. In passing from the feed rolls on the shafts 13
superimposed position on the previous layer, involving a
change in the direction in which the stripping is tensioned
in relation to the axis of the coil, the opposite ñanges of
the stripping in the last applied end convolutions (which
and 14 through the upright rolls 18 and the guide roll 21,
the ribbing is reversed in its position so that its adhesive
coated faces 11’ and 12’ are directed outwardlßÍ or away
from the axis of the coil. When the carriage 16 is moving
flanges lie one underneath and one above the rib portion), 50 from right to left or downwardly, as seen in FIG. 1, the
are pulled in opposite directions in their own planes so
projecting portion of the folded tape 12 is at every turn
that the flange which is folded back against the rib portion
may at one or more points along the stripping be drawn
below the bottom edge of the core portion so that its ad
covered by the uncoated and non-tacky projecting portion
of the unfolded tape as clearly shown in FIG. 2.
When the carriage 16 is moving from left to right or
hesive face there makes contact with the adhesive face 55 upwardly, as seen in FIG. l, the adhesivv-coated project
of the other ñange.
ing extension of the unfolded tape engages the uncoated
I have discovered that by reversely Winding the ribbing
surface of the tape of the adjacent turn. The projecting
informing the coil all these disadvantages are unexpected
extension of the folded tape 12 overlies the fold of the
ly obviated. The ribbing runs free from the coil without
tape in the next adjacent turn thus forming a substantially
blocking and wherever the coil is located the ribbing 60 rectangular space 22 between the exposed end of the core
reaches the applying machine smoothly, without kinking
or twisting, and this permits locating the coil in an over
in one turn and the covered end of the core in the next
adjacent turn. In this layer as before the adhesive-coated
surfaces of the tape are directed outwardly and away
way and where it has been impractical to locate the coils
from the axis of the coil.
previously available to the industry.
In FIGS. 4 and 5 is shown a somewhat different form
These and other features of the invention will be best
of ribbing in which the core 30 is triangular in shape and
understood and appreciated from the following descrip
the tape 31 is adhesively secured to one face only of the
tion of a preferred embodiment thereof, selected for
triangular core. The other two faces of the core are
purposes of illustration and shown in the accompanying
entirely exposed and the tape extends a substantial distance
drawings in which:
70 below the base of the core. In winding this ribbing into a
FIG. 1 is a diagrammatic plan view suggesting the re
coil the adhesive-coated surfaces of the tape 31 underlies
verse winding process,
the back of the tape which is secured to the core in the
head position where it is entirely out of the operator’s
next adjacent turn while the ribbing is being laid in one
direction in the coil. In laying this form of ribbing in
the other direction on the coil, the adhesive-coated face
31' overlies the long uncoated face of the triangular core
will run freely and without sticking when drawn from
the coil.
2. As an article of commerce, a coil of strip ribbing
comprising a fibrous core and a tape coated on one surface
30. In FIGS. 2-~5 the direction of laying of the ribbing
only with a pressure-sensitive adhesive, secured to both
in forming the core is indicated by arrows.
sides of the core,-having` a ñatwise extension beyond one
It will be understood that the uncoated surfaces of the
tape 11-12 and 31 are sized or otherwise treated to impart
release characteristics to them. Accordingly, when over
edge of the core and a folded extension beyond the other
edge of the core, the ribbing being wound in one layer of
the coil with the uncoated side of its flatwise extension in
lapped by the adhesive-coated surfaces in the coil little 10 contact with the adhesive-coated side of the folded exten
or no adhesion is developed.
sion of the tape of the next adjacent core and wound in
alternate layers of the coil with the ñatwise extension of
the tape in contact with the uncoated back of the tape
upon the next adjacent core, and in both layers with the
desire to secure by Letters Patent: ‘
l. As an article of commerce a coil of compo-site rib 15 coated pressure sensitive adhesive surfaces of the tape
outwardly directed with respect to the axis of the coil.
bing for welt insoles, comprising a ñat core and tape coat
ed on one surface only with adhesive and secured thereby
References Cited in the ñle of this patent
to opposite sides of the core, one portion of tape covering
Having thus disclosed my invention and described in
detail illustrative embodiments thereof, I claim as new and
one side of the core and extending in flat condition so as ’
to expose its adhesive surface beyond the core, and another 20
portion of tape covering a part of the other side of the
core and being folded to expose the margin of the core
and to direct its adhesive surface in the same direction as
that of its unfolded tape, the ribbing being coiled with
the said adhesive’surfaces of the tape directed outwardly 25
and away from the axis of the coil, whereby the ribbing
Ridderstrom _________ __ Feb. 29, 1944
Olsen et al ___________ __ Mar. 27, 1945
Strickland __________ __ Aug. 12, i958
Great Britain ________ __ May 5, 1930
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