“T1233? 22, 1952
K. N. MATHEs '
2,604,424 '
GLASS FIBER REINFORCED CREPE PAPER
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Filed Dec. 18, 1948
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Inventor :
Kenneth N'. Hath'es,
b2 @CZ.J.
v
His Attorney.
Patented [July '22, 1952
_ 2,604,424
Kenneth N. Matinee, ‘Schenectady, N. Y». essignor
to General Electric Companyla corporation of
ii; sew Yak g
' npplieatienneeember 18, 1948, Serial No. 65,988 g
.1 Claim. (01. 154,‘—53.6)
This invention. relates to crepe paper. More,
sheet ‘or tape having. increasing strength in. one,‘
Speiéiflcally-v :itrelatesto crepe paper tape or
directioniand desirable elasticity in a direction
perpendicular to the other direction may-"be
sheet.’ reinforced with adherent glass *?bers
‘which, arevarranged substantially.paraller to the
creping
in
such paper.
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simply made by cementing: glass 7 ?bers to smile
5 paper .so that .=the_ ?bers are-substantially- lsaralrv
vj--I-1eret<_>f_ore glass'and‘other types of ?bers have
lelztosthe creping of ‘the paper;
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been used in reinforcing .composite, sheet struc
Reference may be. had to the, drawing for a
tures. The ?bers are-inserted at random or in‘
detailed explanation of the present invention.
In'Fig. i-which depictsa; method of and ape
a preconceived fashion} between the laminae
making up such structure. Such structures 10 paratusi'for making the reinforced crepe paper
have been used. to augment or increase the
tape or sheet of this invention a sheet .-l of
crepeipap'er is shQWJI-I as being continuouslyrunev
tensile strength of the sheets to which they are
applied, such increased strength manifesting it
wound from, roll 2 byrany suitable means, Passed
self parallel to the direction of orientation of
over guide roller v3 and fed between support roll
the ?bers.
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er 4_and pressure roller ‘5. The, sheet vI of paper.
While reinforced paper of the above types
which is creped in the direction of‘ motion‘ may.‘
?nds many apnlicaticnswhere increased strength
be of’ any suitable width which after reinforcing
is- indicated, _ it is unsuitable, in applications
may, if desired, be slit or cut. lengthwise to pro
where,bothstrengthvand, elasticity or the ability
vide'a tape of- the; desired width‘ having the
to. onfematcirreeular shapesis required as in 2,0 creping parallel tojits, length. ; Glass ?bers 6
wrapping coils. with tape- Insuch applications
may be?feduonuthe ‘paper sheet I parallel to
the crepingc from spools. ‘l which are so mounted.
on spindles 8;,and supports 9 thatv the movement
ccnsiderablestrength is required for instance
alensthe lengthpf the tapeused While elasticity
and-an ability to conform teem- irreeular shape
or» 91.‘ lappinais. desirable-line direction per
pendicular to, the length cf, the tape. Hereto
of the ‘paper sheetvrl between.’ support roller 4.
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and pressure roller 5-will cause theglass?ber's.
6 to be withdrawn from the spools. 1.; as showns
fore, such a combination- of strength and ?exi
bility has been found ‘only in fabric or textile
At some, point between the spools} and. pressure
tapes.‘
with;'adhesive by any convenientmeanss For
example. the: adhesive may be sprayed .omtjhe
?bers, from vnozzles Ill,’ asshown. in‘F'ig. .L. It.
may also be brushed; on“ or. alternativelyfthe
?bers maybe ‘dipped. in the adhesive .or‘ other
_.
'Itisan obiectofthis invention to provide a
paper tape‘ or sheet. havin'gfavorable strength 30
in one direction and elasticity perpendicular to
this direction.
It is a further object of the present invention
to provide a process of manufacture for crepe
roll 5‘ thecontinuous glass ?bers 5 areeoated
conventional means of coating used. ' It is also
possible to have roller 5 in the form of a hollow
paper sheet or tape having desirable lengthwise 35 cylinder containing the adhesive and having
strength and lateral stretch and conforming
holes in the wall thereof for feeding adhesive
qualities.
to the glass ?bers as they are fed to the sheet.
Other objects will become apparent and the
The coated glass ?bers 6 are fed between the
invention better understood from a considera
support roller 4 and roller 5, the rollers being
tion of the following description and the draw 40 adjustable to ?rmly press the adhesive-coated
ing in which Fig. 1 illustrates a method of and
?bers onto the crepe paper sheet I. If it is de
apparatus for making the tape of the present
sired to press the ?bers 6 onto the sheet with
invention; Fig. 2 is an end elevation view of a
portion of the reinforced crepe paper between
more force than is afforded by roller 5, a second
set of rollers similar to 4 and 5, may be added
After the
adhesive coated glass ?bers thereon and Fig. 3
glass fibers 6 have been pressed on the surface
is similar to Fig. 2 except that the ?bers are
of the sheet I, the adhesive may be cured or
dried in any conventional manner suitable to
embedded in an adhesive coated paper.
the adhesive used. This may constitute a simple
It has been found that a tape or sheet hav
ing good strength in one direction and elasticity 50 air dry or heat treatment among others. The
the pressing rollers showing the arrangement of 45 next in train after the rollers shown.
reinforced crepe'paper sheet may then be cut
in another may be very simply manufactured by
into tape as desired or used in sheet form.
a?ixing continuous glass ?bers to crepe paper
In Fig. 2 is shown a partial end elevational view
tape or sheet substantially parallel to the crep
of a typical sheet made according to this inven
ing of such paper.
55
tion as it is positioned between rollers 4 and 5.
More speci?cally it has been found that a
2,604,424
3
4
The creped sheet I is reinforced by a number of
The sheet or tape of the present invention
?nds application in all uses wherein an economi
cal paper of, great tensile strength and lateral
stretch or ?exibility and lapping qualities is de
sired. It is particularly useful in wrapping elec
trical coils such as those used in armatures, trans
glass ?bers 6 each of which is coated with a layer
of adhesive l2 which causes it to adhere to the
sheet I.
Alternative to the method of manufacture
which includes coating the glass ?bers 6 with a
layer of adhesive is that of placing a layer of
adhesive on‘ the .crepe 'paper sheet‘ l'p'rior to its
formers’ and other electrical apparatus.
' ~Since certain changes other. than ‘those indi
cated may be made in" applying my "invention
with a layer of adhesive through holes provided 10 without departing from the spirit or the scope
in a cylindrical adhesive-containing roller to take ‘~ thereof, it is to be understood that this disclosure
contact with the glass ?bers or covering the sheet
the place of roller 5. This layer should be thick
enough to adequately hold the glass ?bers to the
is to be taken as illustrative rather than limiting
and that it shall include all changes obvious to
one skilled in the art.
paper. In general a layer equal to about one
What I claim as new and desire to secure by
quarter of the diameter of the ?bers is sui?cie'nt
Letters Patent of the United States is:
for this purpose, though a thicker or thinner
A compositetape product which is suitable for
layer may be used.
Wrapping electrical coils and consists of an elon
In Fig. 3 there is shown an end elevational view
gated sheet of paper having lengthwise creping
of this alternative embodiment of the invention
with crepe paper sheet I, and glass ?bers 6 em 20 and having adhesively a?ixed on a surface there
of a plurality of elongated glass ?bers individually
bedded or held in place on the sheet by means of
to withstand any slight lateral stress which may
be placed on ‘the glass ?bers tending to displace
spaced apart from one another from vedge to edge
of said sheet in substantially parallel relation
to the lengthwise. creping ‘of said paper, whereby
said paper is given greater lengthwise'strength
than such paper has when unprovided with such
?bers without loss of lateral stretch and capability
them from side to side on the crepe paper sheet
of conforming with irregular surfaces. 5
a continuous layer 13 of adhesive superimposed
thereon.
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'7 The only restriction onthe adhesive to be used
in general applications is that it be elastic enough
or ‘tape while it is being drawn taut over the
article to be wrapped. Any adhesive used in
coating the entire sheet from which the rein
forced sheet or tape is made should also be elastic
enough to allow displacement of the creping in
the paper to give a goodlapping action. In
those 'cases in which the sheet or tape is to be
used for special purposes such as for insulating
purposes, the adhesive should have dielectric
properties whichdo not detract from the overall
insulating qualities of the reinforced structure.
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KENNETH
N.
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MATHES.
,IREFEBENCES CITED '
The following references are of record in the
?le
of this
patent:
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UNITED STATES PATENTS‘
Number
Name
Date
1,078,682
Jagenburg _'_'_____‘__ Nov. 18, 1913
1,083,271
BrockjLII ____ __‘____ Jan.- 6, 1914
1,282,167
Angier ___‘__'__'_____ Oct. 22,1 1918
In some applications it may be desirable to apply 40
1,867,071
Collings et a1. ..'__»'__'.. July 12,‘ 1932'
an adhesive which will hold the glass ?bers in
place but yet be amenable to curing in place on
the article after wrapping. In this connection
the sheet orrta‘pe maybe coated with thermo
settin'giplastic materials in addition to’ the ad
1,929,903
Schindler __‘_____Y____ Oct. 10, 1933
2,026,194
_ ‘Smith _____ __V__>_.-___ Dec; 371,’ 1935
2,089,405
_ 2,135,057
. Newkirk ____.__'_'____ Aug. 10, 1937
Slayteret al._ ___'-___-_; Nov. 1, 1938'
hesive if desired.
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The number of glass ?bers to be placed on the
sheet material per-unit w'idth’will ‘vary with the
strength of the crepe paper used and on theI?nal
strength desired. In general crepe papers of low
tensile strength will require'a greater number. of
glass ?bers per unit width while stronger crepe
papersjwill require -a smaller number. -
2,290,386
Schindler ___'."________ July 21, 1942
2,428,325
Collins ____1 ____ __-'_ Sept. 30, 1947
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Number
470,558 ,
105,265 .
FOREIGN PATENTS ‘
Country
Date
Germany ____ __‘______ Jan. 19, 1929
zAustralialm ______ __ Sept. 22, 1938