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Патент USA US2124926

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' July 26, 1938.
I
2,124,926
G. E. NORDSTROM ET‘ AL
MACHINE FOR‘ MAKING FIBER REED
Filed NOV. 16, 1936
’
3 Sheets-Sheet 1
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July 26,1938.
G. E. NORDSTROM ET AL
2,124,926
MACHINE FOR umxmw FIBER REED
Filed Nov. 16, 19:56
3 Sheets-Sheet 2
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July 26, 1938.
G. E. NORDSTROM El‘ AL
‘ 2,124,926v
MACHINE FOR, MAKING‘ FIBER REED
Filed Nov. 16, 1936
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2,124,926
UNITED j’ srArEs2,124.92‘:
. PATENT‘ bFl-‘lCE- I >
' . ‘mom son. animal-‘man ms
Gustaf E. Nordstrom and ‘Edward J. Holden,
Gardner, Mara, assignors to American Fibre .
Corporation, Gardner,‘ Masa. a corporation of .
Massachusetts
Application November 1s, 1936, Serial No." 110,93:
7
6 Claims.
This invention relates to the manufacture of
(CI. 93-84)
looking in the direction of the arrow 8 in Fig. 6;
?ber reed by a continuous operation from a nar
Fig. 9 is a rear elevation of the dies, looking
row strip of heavy paper, commonly supplied as > in the direction of the arrow 9 in Fig. 6;
a narrow roll of large diameter. A machine for
Fig. 10 is a plan view of the deuce which
5 this general purpose is shown in a prior patent to
guides the paper to the dies, looking in the di
'
the applicant Nordstrom, No. 1,962,257, issued rection of the arrow III in Fig. 6;
Fig. 11 is a side elevation of the device shown
June 12, 1934.
With this prior machine, the paper was
gummed~and dried in a preliminary operation,
and was scored for folding along predetermined
lines before the previously dried glue was
moistened.
One object of our invention is to provide a reed
in Fig. 10;
'
Fig. 12 is a detail sectional view of the paper
guiding device, taken along the line l2-l2 in 10
Figs. 6 and 11;
‘
Fig. 13 is an enlarged sectional front elevation
of the forming dies, taken along the line 13-"
making machine in which the gluing of the
paper takes place during the passage of the paper
in Fig. 6;
through the machine,_while the pre-drying of
the glue and the subsequent moistening thereof
tially:; formed reed, taken along the line ll-M in
is wholly avoided.
~ A further object is to_provide a machine in
20 which the scoring operation is eliminated and
in which the freshly gummed paper is drawn
'
Fig. 14 is a detail sectional view of the par
Fig.
;
-
Fig. 15 is an enlarged partialvsectional plan
view of the forming and pressing 'roll's, taken
along the line l5—i5 in Fig. 6;
.
‘
taken along the line lB-IB in Fig. 6;
pletely formed reed to the winding devices.
Another object is to provide means in such a
tain roll-adjusting parts appearing in ,Fig. 1 but
subsequent and separate drying and rewinding
Fig. 17 is a detail side elevation showing cer
in a different position; and
Figs. 18 and 19 are ‘views similar to Fig. 15
but showing modi?ed forms of rolls and deeds.
Referring to the vdrawings, our improved'reed
making machine comprises a frame 20 support
'. operation.
Our invention further relates to'the provision
of improved dies and guide devices for effectively
forming a reed from a flat strip of freshly
gummed paper.
Our invention further relates to arrangements
and combinations of parts which will be here
inafter described and more particularly pointed
out in the appended claims.
A preferred form of the invention is shown
in the drawings, in which
Fig. 1 is a side elevation, partly in section,
40
showing our improved reed making machine;
Fig. 2 is a detail front view, looking in the
direction of the arrow 2 in Fig. 1;
Fig. 3 is an enlarged side elevation of certain
' of the parts shown in Fig. 1;
' Fig. 4 is a sectional front elevation, taken along
the line 4-—4 in Fig. 3;
.
Fig. 5 is a detail plan view, looking in the di
rection of the arrow 5 in Fig. 3;
Fig. 6 is a side elevation of the reed forming
parts, partly in section and taken substantially
along the line 6-6 in Fig. '7;
20
Fig. 16 is a cross section of the formed reed,
through a ?xed die and between tensloning and
forming or pressing rolls which deliver a com
machine for drying the formed reed as it is de
livered to the winding spool, thereby avoiding a
15
_
Fig. '7 is a plan view of certain parts, looking
in the direction of the arrow 1 in Figs. 1 and 6;
Fig. 8 is a front elevation of the forming dies,
ing standards 2| -in which a roll L of kraft or 30
similar paper is rotatably mounted. A weight
W is preferably guided between the standards
2| and rests loosely on the top of the roll L, thus
providing friction to sufficiently retard the de
livery of the paper to the reed-forming mech
anism.
A glue pan 22 (Figs. 1 and 6) is mounted on a
bracket 23 supported by the frame 20' and is
provided with bearings for a drum 24, the lower
portion of which dips into the glue as the drum 40
rotates. A transfer roll 25 rests on ‘the drum
24 and is rotatably mounted in bearings in the
swinging ends of arms 26, mounted‘on a ?xed
pivot 21. The paper strip S is guided over the
transfer roll and in segmental contact therewith 45
by a fixed guide-roll 28.
The glued or gummed strip S is engaged by a
scraper or blade 30 (Figs. 6 and 7) pivotally
mounted adjacent a ?xed guide rod 31 on a post
3|“. The scraper is secured in position by a 50
clamping nut 32 which may be loosened when
it is desired to angularly adjust the scraper blade
about its supporting axis. The function of the
scraper is to remove surplus glue from the strip S.
As the paper strip 8 is advanced'by the upper 55
2
2,124,998
forming and pressing rolls 4. and 4|, it is drawn
under a forming device or guide member 42 and
is drawn through a pair of forming dies 42 and
44.
i
The forming device 42 is secured to the under
side of a ?at paper guide 45 (Figs. 10, 11 and 12) .
The guide 42 is substantially semi-circular in
cross section in its middle portion, as indicated
in Fig. 12. and is tapered or beveled oi! in its
10 rear portion as shown in Figs. 6 and 11. At its
front end, the guide 42 is tapered in all directions,
so that the extreme front end portion is conical
and resembles in contour the pointed end of a
pencil. The guide plate 45 is secured to a ?xed
15 arm 46 (Figs. 1 and 6) supported by the post 3|“.
The dies 43 and 44 are mounted side by sidé
in a holder 41 (Fig. 7) carried by a fixed support
46 and provided with a clamping screw 49 by
which the dies may be held in longitudinally
20 adjusted position. When the dies are assembled,
they provide a gradually contracting passage
which is substantially square at its larger end,
as indicated at 56 in Fig. 9.
_
-
The passage is gradually contracted both ver
25 tically and horizontally toward the left. in Fig. 6,
and the outlet of the passage has the irregular
and much reduced shape indicated in Fig. 8, in
which it will appear that the passage is of gen
eral contracting U section in both dies, but with
30 the outlet 5| in the die 44 of substantially less
height than the outlet 52 in the die 43. The
operation of the die in folding the paper strip
will be hereinafter described.
As disclosed herein, the machine is designed
35 for the production of a special reed R having
the cross section indicated in Fig. 16, the reed
being ?at on one side and convex and substan
tially semi-circular on the other.
'
‘The rolls 40 and 4| are designed to produce
40 a reed of this particular cross section, the roll
40 being provided with a groove‘ 54 (Fig. 15)
having a rounded bottom, and the roll 4| being
provided with a ?ange 55 ?tting the groove 54
but having a square outer edge.
45
'
By varying the cross section of the groove and
?ange, the shape of the reed produced may be
modi?ed as desired. In Fig. 18 we have shown
a roll 4|)”L having a rib'at the bottom of the groove
and producing a form of reed R’ with a single
groove therein. The roll 40b in Fig. 19 with two
ribs at the bottom of the groove will produce a
reed R” with parallel grooves therein.
The forming and pressing roll 40 is mounted
in a ?xed bearing block 51 (Figs. 1 and 3) which
55 in turn is secured to a ?xed bracket 58.
A strip
per 59 is also mounted on the bracket 58 and
extends into the groove 54 to remove the formed
reed therefrom.
-
.
The roll 4| is rotatably mounted in a bearing
60 block 60 (Figs. 3 and 4) which is ‘connected by
a link 6| (Fig. 5) to a forked link 62. The link
62 is also pivotally connected to the end of a
stud 63 threaded in the axial opening of an ad
justing screw 64. The screw 64 is threaded in
65 the end portion 65 of the ?xed bracket 58 and a
lock nut 66 is provided to maintain the adjust
ment.
‘
‘
The thread on the stud 63 is of the same hand
as the thread on the screw 64 but of slightly
70 different pitch. Consequently when the screw 64
is rotated, a very delicate differential adjustment
of the stud 69 is provided, which adjustment is
.transmitted through the links 62 and 6| to the
bearing block 60 of the forming and pressing
75 roll 4|.
The links 6| and 62 form a toggle, commonly
aligned with the stud 62 as indicated in Figs. 1
and 3 but capable of being swung upward man
ually to the position shown in Fig. 17 when it is
desired to separate the rolls 46 and 4| for thread
ing or other purposes. This separation of the
rolls may be quickly and easily accomplished.
without destroying the ‘adjustment and setting of
the rolls.
~
'
A second set of forming and pressing rolls II 10
and 'II is mounted below the‘ rolls 46 and 4|, said
rolls being supported on a ?xed bracket 12. A
third bracket 13 is provided on which a third set
of pressing and forming rolls may be mounted ii’
desired. A second stripper ‘I5 may be provided 15
for the roll ‘I0 and is mounted on the fixed
bracket 12.
The mounting and adjustment of the lower
rolls 10 and ‘H is identical-with the mounting
and adjustment of the rolls 40 and 4| as above 20
described, and further reference thereto is con
sidered unnecessary.
A drive shaft 80 (Figs. 3 and 4) is mounted in
a bearing 9| on the lower bracket 13 and receives
power from any suitable source. A gear 62 on 25
the shaft 80 engages an intermediate gear 62 on
the bracket 12 which in turn engages a gear 64
mounted to rotate with the lower forming roll 16.
The gear 64 in turn engages an intermediate gear
85 mounted on the upper bracket 56 and meshing 30
with a gear 86 associated with and driving the
upper forming roll 4|).
The front upper forming roll 4| is preferably
geared to rotate with the back forming roll 46
but the lower front roll ‘H is preferably free to 35
rotate in contact with the roll 16 and with the
reed passing between the rolls.
After passing through the upper and lower
pairs of forming and pressing rolls, the formed
reed R is drawn downward past a guide-roll 90 40
(Fig. 1) mounted on a swinging support 9| and
held in operative position by a stop 92. The roll
90 may be swung forward out of the way when
desired, for cleaning or other purposes.
The reed R passes from the guide-roll 90 to a 45
drying drum 94 pivotally mounted on a carriage
95 and rotated by a motor M or other suitable
driving mechanism. The reed is drawn over a
sector of the drum 94 and is then wound on a
spool 96, rotatable in bearings 9'l'slidably sup 50
ported on guide-bars 98 extending rearward from
the carriage 95. Weights W are connected to
the bearings 91 by cords or chains 99 and pull
the spool 96 forward to press the reed thereon
into yielding engagement with the drum 94.
55
The carriage 95 is reciprocated on brackets I00
during the winding operation to provide the de
sired traverse for laying the reed helically on the
barrel of the spool 96. The traversing mecha
nism may be of any suitable construction, such 60
as is shown for instance in the Nordstrom Patent
No. 1,962,257 previously mentioned.
Suitable provision is preferably made for heat
ing the drum 94. In the drawings we have indi
cated the drum as being heated by steam con 65
ducted from a steam supply pipe ||l| by a ?exible
feed pipe “)2. We have also shown a ?exible re
turn pipe I03 connected to an exhaust or return
main I04. Any other suitable or convenient
method of heating the drum 94 may be substi 70
tuted.
Having described the details of construction of
our improved reed making machine, the method
of operation will be easily apparent. After the
machine is threaded up, the paper strip. 8 is 75
3
'2,124,926
drawn into the machine by the tension of the
upper and lower pairs oi? forming and pressing
rolls and by additional tension supplied by the
winding drum.
As the paper passes over the transfer roll 25,
the under side of the paper receives a coating of
adhesive, such as gum or glue, and any surplus
adhesive is removed by the scraper blade 30.
10
Thepaper strip S is then drawn under the guide
plate 45 and guide member 42 and is under such
tension that the paper assumes the upwardly
reed, that improvement which consists in provid
ing in said winding apparatus a heated rotated
roll, a. winding spool, means to press said spool
yieldingly against said roll, and means to guide
said reed into contact with said heated roll at a
point removed by approximately one-eighth of a
circumference from the point where the reed is
wound. on said spool, whereby said reed is sub
stantially dry as it approaches said winding spool
and is further dried by contact of said heated 10
roll with the outer layer of reed on said spool.
2. In a machine for making ?ber reed by the
successive operation of means to supply a ?ber
concave form indicated in Fig. 12.
The paper in this concave form then enters the
larger end of the passage between the forming -‘strip, a glue-applying device, guiding, forming,
crushing and‘pressing devices, and a winding de
15 dies 43 and 44, with the. two edges of the paper
upwardly disposed. As the paper is drawn vice, and in which said pressing device com
through the dies, the rear or left-hand edge of prises a driven roll mounted in ?xed bearings
the paper, as viewed in Fig. 13, is drawn into the and a second roll mounted in movable bearings,
upper portion oi! the wider forming groove 52 and
20 the restof the paper is crushed or irregularly
folded more or less into the position indicated in
25
Fig. 13.
As the strip leavesthe forming dies and ap
proaches the forming and pressing rolls 40 and
4|, the strip becomes flattened and widened and
assumes substantially the condition indicated in
vFig. 14, where it will appear that the upper or
leit-hand edge portion S’ is so disposed that
when pressed between the forming rolls, the'edge
30 of the portion S’ will substantially coincide with
the edge of the reed.
The reed then passes between the forming and
that improvement which consists in providing
di?erential mechanism for positively adjusting
said movably mounted roll toward and away from
said driven roll, said differential mechanism com
prising a stud connected to said movable bear
ings, an adjusting screw in which said stud is
threaded, and a ?xed element in which said 25
screw is threaded, said screw and said stud hav
ing external threads of the same hand vbut of
slightly different pitch.
3. In a machine for making ?ber reed by the
successive operation of means to supply a ?ber
strip, a glue-applying device, guiding, forming,
30'
crushing and pressing devices, and a winding de
pressing rolls l0 and ll, as indicated in Fig. 15, Y vice, and in which said pressing device compris
and is thereby given the cross section shown in ing a driven roll mounted in ?xed bearings, a
second roll mounted in movable bearings, and a
35 Fig; 16. As the adhesive is still moist at this
roll-adjusting device, that improvement which
point in the operations, the several layers of
paper are ?rmly cemented together.
A."
An additional pressing and forming operation
is performed by the lower rolls ‘l0 and ‘II, this
second operation improving the uniformity and
?rmness of the product. If desired, the lower
driven roll "I0 may be of very slightly greater
diameter than the upper driven roll 40, so as to
provide a very slight additional tension or draft
on the reed as it emerges from the rolls ill and
ll.
The reed delivered by the rolls ‘I0 and ‘II is
further tensioned by the coacting winding drum
50
N and spool 9i and the reed is held in close
contact with the heated drum as the reed is de
livered to the spool.
.
The reed wound on the spool also rolls in con
tact with the heated drum until covered by a
succeeding layer, so that additional heat is trans
formed and the reed is dried to such an extent that
ea M
it may be used directly in a loom or for other
purposes without an additional and separate dry
consists in providing thrust-transmitting connec
tions between said adjusting device and said mov
able bearings which connections comprise toggle
members which constitute a rigid brace when in 40~
normal operative position and-which are manu
ally movable irom operative positionto separate
said rolls, while maintaining the adjustment of
the movably mounted roll unchanged when said
toggle and roll are returned to normal operative 45
position.
4. In a machine for making ?ber reed, a pair
of forming dies having associated passages each
passage being gradually contracted toward the
delivery end of the dies and being of broadened
U-shape in cross section, with one passage sub
stantially broader at its delivery end than the
other passage.
5. In a machine for making ?ber reed, a pair
of forming dies having associated passages, each 55.
passage being gradually contracted toward the
delivery end of the dies and being of broadened
ing, operation. A substantial saving in manu ‘ U-shape in cross section, with one passage sub
stantially broader at its delivery end than the
iacturing cost is thus e?ected.
other passage and so positioned that the asso
While
a
single
unit
only
has
been
shown
and
60
ciated edge portions 01’ said passages are in align
described, it will be understood that a commer
cial' machine will ordinarily comprise a plurality ment at one side or said passage and substan
of such units, preferably assembled as indicated tially o?set at the other edge.
6. In a machine 'for making ?ber reed, a ?xed
in said Nordstrom patent.
Having thus described our invention and the forming and crushing device having a passage
advantages thereof. we ‘do not wish to be limited
to the details herein disclosed, otherwise than as
set forth in the claims, but what we claim is:
I. In a machine for making ?ber reed in which
strip-supplying means, a glue-applying device, a
70 .guiding
and preliminary rorming device. forming
and crushing dies and rolls‘ and winding ap
paratus cooperate in successive operative rela
tion to transform a strip of paper into a ?ber
through which a strip of paper is drawn and
irregularly crushed, said passage being gradu
ally contracted toward its delivery end and hav
ing an oii'set portion at said delivery end which is
effective to substantially align'the outer,edge of 70
the crushed paper strip with one edge‘ of the
resultant reed.
GUBTAF E. NORDS'I'ROM.
EDWARD J. HOLDEN.
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