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Патент USA US3087617

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April 30, 1963
Filed Sept. 11, 1961
2 Sheets-Sheet 1
5. AM
April 30, 1963
Filed Sept. 11, 1961
2 Sheets-Sheet 2
@0498 52 W
United States Patent Q 'ice
Patented Apr. 30, 1963
vals 13 which are in staggered relation to intervals 12.
Upon stretching the element 10, hexagonal cells 14 are
produced. It will be apparent that element 10 may be
Filed Sept. 11, 1961, Ser. No. 137,343
10 Claims. (Cl. 205—5ti)
stretched to vary the size of the cells 14. The opposite
Earl H. Robinson, 87 Green Knolls Drive, Wayne, NJ.
This invention relates to cloth ‘boards, reels or the
like used as supporting cores for winding fabric thereon
to provide flat fabric packages or bolts.
side edges of element 10 are de?ned by the doubled, strip
portions 15 which are in parallel relation and at sub
stantially uniformly spaced intervals.
Each of the cells 14 is de?ned by opposed doubled
strip portions 12 or 13, and single strip portions 16, 17,
18 and 19. ‘Preferably, the paper sheets from which
An object of this invention is to provide an improved
core element 10 is formed, are cut from kraft paper
cloth board Which is of reduced weight as compared to
having a basis weight of 70 to 160 pounds for 500 sheets
conventional boards, yet has a rigidity and strength suf
of 24" x 36” size. The core element slices 10 may be
?cient to permit proper winding of the fabric thereon and
condensed longitudinally to dispose adjacent strips 11 in
to carry the weight of the wound fabric.
A further object of this invention is to provide an 15 face to face relation throughout their length, and while
in such condensed condition, the opposite side edges may
improved cloth ‘board which comprises a honeycomb
be rounded as at 20, as shown in FIG. 6.
The cloth board 25 shown in FIGS. 3, 4 is formed
being an extensible structure which permits a predeter
by providing a honeycomb slice 10 of a selected width
mined stretch of the core during its assembly with the
facing, to thereby adjust the size of the cells of the core 20 and which can be stretched longitudinally to a desired
paper core and a facing for enveloping the core; the core
and determine the unit weight of the completed board.
length corresponding to the length of the board 25,
Another object of this invention is to provide an im
while reducing the original width of the slice to the
proved cloth board which comprises a honeycomb paper
desired width of the board 25, thereby determining the
gverall size of cells 14 and the unit weight of the resultant
core and a facing for enveloping the core; the core being
in the form of sliced units which may be varied as to 25 oard.
While the core slice 10 is held in the desired stretched
thickness, thus producing cloth boards of varied thickness
condition, a facing sheet of paper, generally indicated at
26, is wrapped about the same to ‘bring the opposite side
Yet a further object of this invention is to provide
edges 27, 28 into overlapping relation; the overlapped
improved cloth boards made up of honeycomb paper
cores and facings enveloping the cores wherein the core 30 edge portions being glued together. Also, glue is applied
to the inner surface portions 29 of sheet 26, or to the
structure may be suitably related to the facing to attain
to suit selected fabric weights and bolt windings.
maximum strength and resistance to crushing.
Other objects of this invention will in part be obvious
and in part hereinafter pointed out.
opposite edges 30, 31 of the strips 11, to adhere the
facing 26 securely to the core element 10‘.
By way of example, the core element 10 may have a
In the drawings, FIG. 1 is a top plan view of a portion 35 width of 10.5” in its longitudinally compressed, non
cellular condition, and is then longitudinally stretched to
of a honeycomb core element in extended condition,
reduce the width thereof to about 7.75". Obviously, a
which is used in forming the cloth board of the instant
lesser stretch of the core element will give a board of
invention; FIG. 2 is a front elevational view thereof;
increased unit weight. The paper stock for the facing
FIG. 3 is a top plan view of a portion of a cloth board
may be kraft paper with a basis weight of from about
‘ embodying the invention, with parts cut away; FIG. 4 is
80 to about 260 pounds ‘for 500 sheets of 2 " x 36" size.
a sectional view taken on the line 4-4 of FIG. 3; and
The opposite side edges 32, 33 of facing 26 are uni
FIG. 5 is a top plan view similar to that of FIG. 3 and
for-mly reinforced against crushing by the uniformly
showing a modi?ed form of the invention; and FIG. 6
spaced doubled strip portions 15 of core element 10.
is a sectional view taken on the line 6-6 of FIG. 3.
The cloth board of the instant invention comprises 115 The opposite ends 34 of board 25 are enclosed and ?nished
‘by cardboard strips 35 which are ‘folded along parallel,
essentially a honeycomb paper core element and a facing
longitudinal lines 36, 37 to channel form to receive the
for the core; where the core element is made by gluing
board ends 34.
paper sheets together at spaced, staggered intervals and
The strips 35 are held in place by adhesive or staples
sliced transversely thereof to provide slices of a selected
and then covered by indicia paper strips 38 also folded
thickness which are expansible to form a hexagonal cell
to channel section and adhesively or otherwise secured to
strips 35. Strips 38 may be preprinted or otherwise
The facing may be in the form of a single paper sheet
marked with the usual labeling items to mark and identify
wrapped about the faces and edges of the core slice and
the fabrics to be wound on boards 25.
adhesively adhered to the edges of the core strips to re
Alternatively, as shown in FIG. 5, a board 40 is formed
tain the core slice in a stretched condition to provide 55
from honeycomb core slice 10A which has its strips 11A
cells of a predetermined size. Alternatively, a pair of
extending parallel to the side edges of the board, rather
facing sheets may ‘be adhered to the opposite faces of
than at right angles thereto, as in the case of board 25.
the core slice and paper tapes may be applied to the side
in this case, the initial dimensions of the core slice are
edges thereof. In either case, the board is ?nished by
determined so as to provide the ?nish board dimensions
the application to the end edges thereof folded cardboard
when suitably stretched to give the desired cell size and
end closures and ?nish paper end tapes which are adapted
unit weight.
to be imprinted or otherwise marked.
.Also, the core slice 10A is retained in its stretched
Thus as shown in FIG. 1, 1t) designates a honeycomb
paper core element, in partially extended form. ‘Core 65 condition by kraft paper sheets 41, 42 which extend at
their opposite side edges to the opposite side edges of
element 10 is made up of paper sheets glued together at
the core slice and are adhesively secured to the edges
longitudinally spaced intervals which are in laterally
of the strips 11A. Paper tapes 43, 44 are respectively
staggered relation. The glued sheets are then sliced
Wrapped about the exposed side edges of the core slice
transversely to any desired thickness, as indicated in
FIG. 2.
70 10A and are secured by adhesive in overlapping relation
The element 10 accordingly comprises paper strips 11
adhered together at longitudinal intervals 12 and inter
to the marginal side portions of facing sheets 41, 42.
The ends of board 40 are ?nished with channeled card
board strips 35A and indicia paper strips 38A, as pre
prising a honeycomb structure having hexagonal cells
viously described.
In forming core slices 10, 10A, the paper sheets may
extending transversely of the faces of said core, said
‘core being extensible in one direction while reducing
the width thereof to a predetermined dimension whereby
be glued in a manner to provide upon stretching, cells
of varying size. It has been ‘found that such cells may Cl to vary the size of said hexagonal cells, said facing being
be from .5 to 1.5” measured on each side of a cell.
adhered to the opposite faces of said extended core to
Thus, the resultant cell structures may be used to mini
retain the core cells at a predetermined size, and laminated
mize the gauge of the facing sheets as well as the thickness
of the core slices, yet obtain maximum stiffness and
strip portions in channel section enclosing the end edges
of said board.
6. A cloth board as in claim 5 wherein each side of
of the board may be varied as desired by varying the
each hexagonal cell is from about .5 to 1.5” in length.
thickness of the core slice 10, 10A as the same is cut
7. A cloth board as in claim 5 wherein said core has
from the glued sheets, from about 1A" to about 1".
a thickness of from about 1A” to about 1".
While the edge of the core slice 10 is shown as rounded
8. A cloth board as in claim 5 wherein the paper from
to give a smooth ?nish when the core is Wrapped, the 15 which said core is formed has a basis weight of from
core edges may be left in their original squared condition
about 70 to about 160 pounds for 500 sheets of 24” x 36"
strength in the ?nished board. However, the thickness 10
and the edges may be crushed during the wrapping oper
ation to give a rounded edge effect.
9. A cloth board as in claim 8 wherein the paper
As various changes might be made in the embodiments
from which said facing is formed has a basis weight of
of the invention as herein disclosed without departing 20 from about 80 to about 200 pounds for 500 sheets of
24” X 36" size.
from the spirit thereof, it is understood that all matter
herein shown or described shall be deemed illustrative and
10. A cloth board comprising a cellular core and sheet
not limiting except as set forth in the appended claims.
facings for the opposite sides of said core, said core
Having thus disclosed my invention, I claim as new
comprising a plurality of ?exible strips of selected width
and desire to protect by Letters Patent:
25 to provide a core of corresponding thickness, said strips
1. A cloth board comprising a honeycomb paper core
being secured together in face to face relation at longi
and a paper facing enveloping said core, said core com
tudinally spaced points to provide an expansible core
prising paper strips adhesively secured together at spaced
longitudinal intervals and in laterally staggered relation
accordance with the extent of the core expansion, said
structure having hexagonal cells of a size varying in
to provide an expansible structure of hexagonal cells
facings being secured to the opposite edges of the strips
upon stretching the adhered strips, said facing being
adhered to the opposite edges of the paper strips forming
forming said core while said core is in a determined
expanded condition to retain said hexagonal cells in a
said core while said core is expanded to form said
size corresponding to said expanded condition, whereby
hexagonal cells of regulated size and said core structure
said board has a regulated thickness and unit weight, a
is retained in expanded form by said facing to give said 35 pair of strips respectively sealing the side edges of said
board a predetermined unit weight.
core and adhered to marginal portions of said facings
2. A cloth board as in claim 1 wherein the side edges
along the sides thereof and a pair of strips respectively
of said core comprise doubled adhered strips disposed in
sealing the end edges of said core and adhered to marginal
substantially parallel relation.
portions of said facings along the ends thereof.
3. A cloth board as in claim 1 wherein the end edges 40
of said core comprise doubled adhered strips disposed in
substantially parallel relation.
4. A cloth board as in claim 1 wherein said paper
facing comprises a single sheet wrapped about said core
with the opposite ends of said sheet in overlapping secured
relation and the opposite end edges of said core are
enclosed with channeled cardboard strips and indicia
paper strips overlying said cardboard strips.
5. A cloth board comprising a cellular paper core
and a paper facing enveloping said core, said core com 50
References Cited in the ?le of this patent
Scammel ____________ __ ‘Feb. 17, 1914
Wilson ______________ __ Oct. 6, 1914
Near ______________ __ Feb. 10, 1925
Engel et al. __________ __ Sept. 2, 1952
Great Britain ________ __ Jan. 10, 1924
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