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Oct. 29, 1946. Y
H. w. BIRCH
2,410,146
MACHINE FOR SPLITTING TUBULAR FABRIC, OPENING
IT AND EXTRACTING MOISTURE THEREFROM
_ Filed June 12, 1944
4 Sheeté-Sheet
1
Havoiol W?ii'ciw,
Oct. 29,3 1946.
I
v
H. w. BIRCH
MACHINE FOR SPLITTING TUBULAR FABRIC, OPENING
IT AND EXTRACTING MOISTURE THEREFBOM
2,410,146
'
Oct. 29, 1946;
‘
H. w. BIRCH
.
2941109146
MACHINE. FOR SPLITTING TUBULAR FABRIC, OPENING
IT AND EXTRACTING MOISTURE THEREFROM
Filed June 12, 1944
4 Sheets-Sheet 5
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Oct. 29, 1946.
H. w. BIRCH
2,410,146
MACHINE FOR SPLITTING TUBULAR FABRIC, OPENING
,
, IT AND EXTRACTING MOISTURE THEREFROM
Filed June 12, 1944
%
9@
4 Sheets-Sheet 4
Patented Oct. 29, 1946
2,410,146
UNITED, STATES PATENT OFFICE
2,410,146
MACHINE FOR SPLITTING TUBULAR FAB
RIC, OPENING IT, AND EXTRAC TING
MOISTURE THEREFROM
Harold W. Birch, Belmont, Mass.
Application June 12, 1944, Serial No. 539,954
16 Claims.
(Cl. 26-1)
1
2
This invention relates to a machine for split
Fig. '7 is a fragmentary view showing a different
ting tubular fabric longitudinally thereof there
embodiment of the invention.
by to convert it into a flat fabric, and for open
‘Fig. 8 is a view illustrating the tubular fabric
ing and smoothing the ?at fabric and then ex
with its guide line, a portion of the fabric hav
tracting moisture therefrom.
5 ing been split and opened to form a ?at fabric.
Prior machines for splitting tubular fabrics
Fig. 9 is a section on the line 9-—9, Fig. 3.
have been provided with a fabric-supporting table
Fig. 10 is a section on the line H], Fig. 3.
over which the tubular fabric is fed, and also
Fig. 11 is a fragmentary view showing the
with a splitting knife to split the fabric length
means for guiding the fabric after it leaves the
wise as it is fed over the table. Sometimes the 1O splitting knife and before it reaches the cloth
tubular fabric to be split is provided with a longi
opening means.
'
tudinally extending guide line along which it is
Fig. 12 is a sectional view illustrating the vac
intended that the knife should operate to split
uum extractor. ,
the fabric and if the tubular fabric is a knit
Referring first to Fig. 8, l indicates a tubular
fabric such a guide line may be constituted by a 15 fabric to be split in the direction of its length,
longitudinally extending row of dropped stitches.
said fabric being illustrated as having a guide
line 2 thereon extending longitudinally thereof
and along which the fabric is to be split.
One object of the present invention is to pro
vide a novel fabric splitting machine having
means by which the operator can easily control,
the tubular fabric as. it is fed to the splitting
knife so as to keep any guide line with which
the fabric is provided accurately in line with'the
dropped stitches. When the tubular fabric has
been split along the guide line 2, then it may
splitting knife.
be opened out to present a flat fabric as shown
Another object of the invention is to provide
a fabric splitting machine with means by which
the operator can easily bring the guide line in
the fabric into registry with the, splitting knife
some distance in advance of said knife, and with
If the fabric is a knit’fabric then this guide
line may be constituted- by a longitudinal row of
at 3 in Fig. 8.
_
The fabric splitting means herein shown com
prises a fabric-supporting table 4 over which the
V tubular fabric is fed and a splitting knife, which
may be a rotary motor driven knife 5 as shown
in Figs. 1 and 2 or a stationary knife 6 as shown
means to maintain such registry while such por
tion of the fabric is traveling from its advanced 30 in Fig. 7, which co-operates with the table 4
position to the knife.
I
v
to split the fabric along ‘the guide line as said
fabric‘ is ‘fed over the table. This fabric-sup
A further object of the invention is to provide
a single unitary machine having not only the
porting table is‘ preferably made arcuate in cross
means for splitting the tubular fabric, but also
section as indicatedin Fig. 5 and it is supported
means for opening the split fabric and thus con co Cl at one end in a suitable frame l6 which carries
the operative parts of the machine. By sup
verting it into a ?at fabric and means for extract
ing moisture from the ?at fabric.
porting the table at one end it presents a free
forward end adapted to be inserted into the tubu
Other objects of the invention are to improve
lar fabric as the latter is fed thereover. In the
cloth splitting machines in various particulars
which are pointed out in the annexed speci?ca 40 construction shown, this cloth-supporting table
4 is mounted on a tubular element 6 which has
tion.
one end mounted in the supporting frame l6
In the drawings wherein I. have illustrated a
and which has a free end ‘I extending forward
selected embodiment of my invention,
some distance from the frame.
’
Fig. 1 is a top plan view of a machine embody
The tube 6 has mounted thereon a plurality
ing the invention.
of table-supporting brackets 8, 9', l 0, each bracket
Fig. 2 is a side view of Fig. 1.
having a semi-circular seat portion II to ?t
Fig. 3 is an enlarged vertical sectional view of
the upper side of the tube 6 and beingclamped
the rear portion of the cloth-supporting table.
to the tube by means of a clamping member I2,
Fig. 4 is an enlarged vertical sectional view of
each clamping member l2 being clamped to its
the front end of said table.
brackets by means of clamping screws [3. Each
Fig. 5 is an enlarged sectionv on the line ‘5—5,
table-supporting bracket 8, 9, or ID is provided
Fig. 3.
‘
with an. arcuate upper surface M on which the
Fig, 6 is an enlarged section on the line 6—-B',
table 4 rests. This table is made of sheet metal
Fig. 4.
.
' 55
bent to ?tthe arcuate surface I 4 therebypresent
2,410,146
3
ing a table having a curved or semicylindrical
fabric-receiving surface.
rThe tube 6 can be secured to the frame [6
in anyv approved way. As herein shown this
frame is provided with two channel-shaped cross
bars l5, H. The right hand extremity of the
tube 6 is clamped between two clamping blocks
l8, 19, the latter having an upper surface l9a
curved to correspond to the curvature of the
table 4.
The rear end of the table is held or
4
rotatable on the end ‘i of the tube 6, the advan
tage of this construction being that it provides
means to assist the operator in keeping the guide
line in the tubular fabric in proper registry with
the splitting knife. As the tubular fabric is fed
over the nose, the operator watches the progress
of the guide line over the illuminated window 42,
and vif said line tends to move out‘ of line with the
splitting knife, the operator may turn the nose
in one direction or the other to bring the guide
line back into proper registry with said splitting
clamped between the clamping member l9 and
knife, thereby maintaining the guide line in align
another clamping member 25 which is secured to
ment with the splitting knife.
the cross bar 11. ‘2| indicates clamping bolts
The nose element 26 is held against movement
which extend through all three clamping mem
of the tube by means of a collar
bers and thus hold them ?rmly clamped to the 15 longitudinally
43 which is mounted on and clamped to the tube
rear end of the tube 6 and the rear end of
the table 4. A second series of clamping mem
bers is employed in connection with the cross
piece 15. This second series comprises a clamp
ing member 22 underlying the tube 6, a second
clamping member 23 interposed between the tube
5 and the table 4, and a third clamping member
24 interposed between the table 4 and the cross
piece l5.- These three clamping members are
clamped tightly together and against the tube
and table by means of clamping bolts 25.
~ These two series of clamping members serve
and which con?nes the rear head between itself
and the supporting bracket Hi.
When the machine is operating, the operator
will stand adjacent to the nose element. 26 and by
placing his hands on the fabric as it is fed over
the nose element he can easily turn the nose in
one direction or the other as is necessary to main
tain the guide line in line with the splitting knife.
The
illuminated
window ' 42
provides
means
whereby the operator can readily see just what
the position of the guide line is as it travels over
the window. The window may be illuminated in
to hold the tube and the table rigidly in position
any convenient way such as by having an electric
with both the tube and the table extending for
bulb located beneath the window.
wardly from the frame thereby to present free 30 light
Associated with the table 4 is means to engage
ends.
the cloth after it has been properly positioned
In order to facilitate the entrance of the table
with the guide line in line with the splitting
4 into the tubular fabric as it is fed forwardfl
knife and to hold the cloth in this position as it
have provided a nose element at said end of
travels from the window to the splitting knife.
35
the table which nose element has a rounded end
This means is herein shown in the form of two
over which the fabric may be readily drawn. This
endless pin chain elements 44 which operate be‘
nose element is indicated generally at 2B and
neath the table 4 and which are provided with
it is rotatively'mounted on the end 1 of the tube
pins 45. The table 4 is formed with a wide slot
6. Said nose'element comprises a rear head 21,
46 and the tWo pin chain elements 44 are arranged
a front head 28 and a series of rods 29 connect
so that the pins in the upper run of said elements
ing the two heads-both heads being capable to
project through the slot ‘and into position to en
turning movement on the tube 5. The heads 21,
gage the fabric resting on the table.
28 are circular in shape and the curvature of
the head 21 corresponds to that of the table 4 so
that the upper surface of the head 21 comes flush
with the end of the table. The front head 28
carries a concavo-convex nose plate 30 which
provides the nose element with a smooth curved
end; '
' The tubular fabric I is fed to the knife and '
through the machine by means of a pair of feed
rolls 3|, 32 situated at the rear of the machine
and adapted to act on the fabric after it has
been split and opened out into ?at form. The
feed roll 3| is a driven roll and the feed roll 32
is an idler roll. The fabric is shown as passing
under the roll 3| between the rolls 3| and 32
Each pin chain element is supported by two
sprocket wheels 4?, 48 which are mounted in the
supporting brackets 8 and 9. The two pin chain
elements are situated on either side of the splitting
knife and as the tubular fabric is fed over the
nose and then is fed forward over the table, the
pins 45 in the upper runs of the two pin chain
elements 44 engage the fabric either side of the
guide line and thus hold the fabric properly posi
tioned as it travels to and past the splitting knife.
These pin chain elements are not driven but are
free to be moved by the fabric as the latter is fed
forward.
7
In order to maintain the upper run of the pin
chain elements 44 in a position in which the pins
45 will be in engagement with the fabric, I have
Any suitable means for driving the feed roll
provided a supporting plate 12 which is situated
60
3| may be employed. I have herein shown a
beneath the upper runs of said chains and which
motor 33 for this purpose which is connected by
is formed with two longitudinal grooves ‘E4, in
a belt drive 34 to a pulley 35 on a cross shaft
which said upper runs travel. Each end of this
36 carried by the frame. The shaft 35 is con
supporting plate 12 is mounted on a cross bar 73
nected by belt or sprocket chain 31 to a pulley
which in turn is secured to wings ‘it with which
or sprocket 38 on another cross shaft 39 and the
the brackets 8 and 9 are provided. Such support
feed roll 3| has rigid therewith a pulley or
ing table prevents the upper runs of the chain
sprocket 40 which is connected to and driven
elements 44 from sagging and the pins 45 in said
from the shaft 39 by a belt or sprocket drive 4|.
upper runs are, therefore, always in operative po
The table 4 is shown as having an illuminated
to engage the fabric.
window or opening 42 in its forward 'end so that 70 sition
49 indicates a rotary element in the nature of
as the portion of the tubular fabric having the
a brush or some similar device which engages the
guideline 2 thereon is fed over the window the
upper surface of the fabric and presses it against
operator can observe whether or not said guide
the projecting pins 45. thereby insuring that the
lineis in the line with the knife 5.
fabric will be impaled on the pins.
As stated above the nose element 26 is freely
and then over the roll 32.
2,410,146
5
The tubular fabric which is to be split may be
considerably larger in diameter than the nose
element 26, in which case when the upper por
tion of the fabric is resting on the nose, the lower
portion will drop down some distance below the
nose. In order to keep the fabric taut in a trans
verse direction as it is moving over the table, I
have provided a tension wheel 59 mounted on an
arm 5| that is pivoted at 52 to the supporting
6
These heads can be turned in the bearings 60 so
as to give the spiral rolls 57, 58 either a position
in which they just contact with the upper and
lower surface of the cloth or into a position where
the cloth in passing through the rolls contacts
with‘ more or less of the surface of each roll,
These spiral rolls 51, 58 are positively driven in
opposite directions in a well-known manner from
the shaft 39 by means of a belt or sprocket drive
This wheel 50 engages the interior 10 6|‘. Said belt or sprocket operates a pulley or
bracket ID.
of the tubular fabric at its lower portion and
holds the portion of the fabric resting on’ the
‘ table in a smooth condition.
sprocket I03 carried by a shaft I 04, the latter
shaft having a gear thereon which meshes with
gears mounted on the shafts or spindles of the
The portion of the fabric which has passed the
rolls 51, 5a By employing suitable reversing
splitting knife and has been split is carried un 15 mechanism in the means for driving the spiral
derneath the clamping members I8 and 22 and
rolls 51, 58 said rolls may be rotated in a direc
then it passes to a cloth-guiding element indi
tion in Which the portion thereof that engages the
cated generally at 53 by which the cloth is guided
cloth moves in the direction of the feed or they
and held in a true course, and from said cloth~
may be rotated in the opposite direction so that
guiding means said cloth passes to a cloth-open 20.. the portion of each roll which engages the cloth
ing element 55 which smooths the flat fabric
is moving in 'a direction opposite to the direction
transversely and removes wrinkles therefrom.
of feed.
From the cloth-opening element the fabric passes
The vacuum extractor element 56 is of the type
to a vacuum extractor 55 which extracts moisture
which comprises a vacuum chamber 62 extending
therefrom and thence it passes to the feed ro‘ls
transversely across the machine and having a slot
3|, 32 by which the cloth is pulled forward
through the machine. said cloth being delivered
from the said rolls either to a suitable folding ele
ment by which the cloth is folded or to a roll on‘
which the cloth is wound up.
The cloth-guiding element 53 comprises a ver
tical shaft 92 mounted in the frame I 6 and. to
which is secured a cross bar 93 carrying a down
Wardly curved element 94, the ends of the element
94 being rigidly secured to the ends of the cross
bar 93. This curved element 94 has a wheel 96
rotatively mounted thereon at its central portion,
said wheel being so so disposed as to; engage the.
upper surface of the cloth as it moves ‘forward
from the splitting knife to the cloth-opening ele- ~'
ment 55. Said wheel 96 together wtih the curved
member 94 constitute a cloth-guiding unit by
which the cloth can be guided and any lateral
shifting movement thereof can be corrected. '
The shaft 92 has fast thereon at its upper end
a worm gear 97 which meshes with and is‘ rotated
by a worm 93 on a longitudinally extending shaft
99. This shaft 99 which is mounted in suitable
bearings I90 extends forwardly towards the nose
63 extending longitudinally thereof said chamber
being situated so that the cloth passes over and
engages the slotted face of the chamber. Suit‘
able means such as a pump 64 is provided for
maintaining vacuum conditions in the vacuum
chamber. ‘With this arrangement, if the cloth
is wet when it is delivered to the machine, the
vacuum extractor will extract a large portion of
thevmoisture from the cloth so that it ‘will be
delivered to the feed rolls in a relatively dry
condition.
The cloth which is delivered from the feed rolls
is herein shown as being passed to a folding de
vice 66 of any suitable or usual construction by
which the ?at fabric is folded and formed into
a pile as shown at 61. This folder comprises the
usual draw roll 68 over which the cloth passes
and the usual swinging folding arm 69 carrying
at its lower end two rolls 1!] between which the
cloth passes, the swinging movement of the arm
69 serving to lay the cloth in folds in the pile 61
as usual. The fol-ding element 66 may be driven
from the shaft of the feed roll 3| by suitable
driving connections ‘ll.
23 ‘and is provided at its forward end with a han- ’
85 indicates a foot-operated switch situated at
dle or wheel I ill by which the operator may turn
the point where the operator stands and by which
it, thereby turning the shaft 92 in its bearings.
he may close or open the circuit of the motor 33.
Any turning movement of the shaft 92 will turn
I will preferably employ a variable speed drive
the axis of the guiding unit 94, 96 into an angu
between the motor 33 and the pulley 35. While
lar position relative to the direction of feeding 55 such variable speed drive may be of any usual
movement of the cloth, and whenever the wheel ' ‘ type, I have herein shown the well-known Reeves
96, which is bearing on the cloth and is being ro
variable speed drive which comprises a two-sec
tated by the forward movement thereof,_is moved
tion pulley ll on the motor shaft, the two sections
or turned into a position in which its axis makes
of the pulley being movable toward and from
a slight angle with the direction of movement, 60
other to vary the effective size of the pulley,
the action of the wheel 96 and the curved member
itheing understood that the belt 3% is a V belt.
94 on the cloth will be to causesthe cloth to shift
The control for this variable speed, drive in
laterally during such forward ‘ movement.
By»
cludes the‘ usual shaft “28 having a screw-threaded
portion I9 which engages the base 3% of the motor
so that by rotating the shaft in one direction or
the splitting knife to the cloth-opening element’
the‘other the motor will be moved away from or
55 may be readily corrected.
'
'
toward the pulley 95. The two sections of the
The cloth-opening element 55' is of the known
pulley l"? are urged toward each other by a spring
type comprising two‘rolls 51, 58 between which
as usual in this type of variable speed drive, but
the cloth passes, and each of which is provided 70 when vthe motor is shifted away from the pulley
with spiral ribs, the ribs on each roll spiraling
35 they V belt will be forced toward the axis of
this means any tendency of the cloth to shift
widthwise in either direction as it travels from
from the center of the roll outwardly toward the
ends. These two rolls are mounted for rotation
in two disk-like heads which in turn are sup-'
ported in bearings 60 mounted on the frame.v
the pulley ‘lltthus separating the two sections
of the pulley and produce in effect a smaller
pulley which will result in a reduced speed of the
driving pulley 35. » vWhen the motor is moved
2,410,146
fabric is fed thereover to'position the guide line
in registry with the splitting knife.
4. An apparatus for splitting a tubular fabric
along a longitudinally extending guide line with
which the fabric is provided, comprising a fab
ric-supporting table, means supporting said table
toward the pulley 35 by the shaft 18, then the
spring closes the two sections of the pulley to
gether, thereby giving the pulley 18 the effect of
a larger pulley which will result in increasing the
speed of the driving pulley 35.
Inasmuch as this Reeves variable speed drive
from one end, means to feedthe tubular fabric
to be split over the table, a splitting knife for
splitting the fabric as it is fed forward, a fabric
is a familiar article of commerce, I have not
thought it necessary to further illustrate it.
, The tubular fabric I which is to be split is fre
quently in rope form and is more or less twisted. 10 opening nose at the free end of the table over
For the purpose of taking out any twist which
such a tubular fabric may contain, I propose to
use a detwisting device indicated diagrammati
cally at Bl through which the tubular fabric
passes on its way to the head 26, said detwisting
device being capable of taking out twist from the
fabric and thus presenting it to the head 25 in .
an open untwisted condition. This detwisting
apparatus may have the construction illustrated
which the fabric is fed and which is mounted
for free turning movement about an axis extend
ing in the direction of feed, whereby the oper
ator may manipulate said nose to keep the guide
line on the fabric as it passes from the nose to
the table in line with the splitting knife, and
means to maintain said guide line in register with
the splitting knife as the fabric travels from the
nose to the knife.
, 5. An apparatus for splitting a tubular fabric
20
in U. S. Patent 2,248,962, July 15, 1941, and is
actuated by a suitable motor controlled by a cir
cuit 88 which includes a suitable reversing switch
by which the rotary element of the detwisting
device may be rotated in either direction as
necessary to remove the twist in the rope.
along a longitudinally extending guide line with
which the fabric is provided, comprising a fab
ric-supporting table, means supporting said table
from one end, means to feed the tubular fabric
2-5 to be split over the table, a splitting knife for
splitting the fabric as it is fed forward, a fabric
opening nose at the free end of the table over
which the fabric is fed and which is mounted
for free turning movement about an axis extend
lating the tubular fabric as it passes over the
in the direction of feed, whereby the oper
head 26 so that the operator While at his station 30 ing
ator may manipulate said nose to keep the guide
, Such a switch is shown at 89.
This switch is
preferably placed within convenient reach of the
station at which the operator stands for manipu
can not only manipulate the switch 85 controlling
the motor 33 but can also manipulate the reverse
line on the fabric as it passes from the nose to
the table in line with the splitting knife, said
switch 89 controlling the detwisting element 81.
table having a slot on the input side of the knife
I claim:
and which extends in the direction of feed, and
35
1. An apparatus for splitting a tubular fabric
an endless chain situated beneath the table and
along a longitudinally extending guide line with
having guiding pins which extend through said
which the fabric is provided, comprising a fabric
slot and engage the fabric to maintain the guide
supporting table, means to feed the tubular fabric
line in register with the knife.
to be split over the table, a splitting knife to split
6. An apparatus for splitting a tubular fabric
the fabric along the guide line as it is fed forward, 40
along a longitudinally extending guide line with
and a fabric opening nose at the entering end
which the fabric is provided, comprising an elon
of the table over which the fabric is fed and
gated fabric-supporting table arcuate in cross
which is mounted for free turning movement
section, means supporting said table at one end,
about an axis extending in the direction of the
45
means to feed the tubular fabric to be split over
feeding movement, whereby the operator may
the table, a splitting knife to split the fabric,
manipulate said nose to keep the guide line on
said table having an illuminated window adja
the fabric as it passes from the nose to the table
cent its free end in line with the knife, and a
in line with the splitting knife.
cylindrical fabric opening nose at the free end
2. An apparatus for splitting a tubular fabric
of the table which enters and opens the tubular
along a longitudinally extending guide line with
fabric as it is fed forward, said nose being mount
which the fabric is provided, comprising a fabric
ed for free turning movement about an axis ex
supporting table, means supporting said table
tending in the direction of feeding movement
from one end, means to feed the tubular fabric
whereby the operator may manipulate said nose
to be split to the free end of the table with said
free end entering said tubular fabric, a splitting 55 to keep the guide line on the portion of the fab
ric passing over said window in line with the
knife to split the fabric along the guide line as
it is fed forward, and a fabric opening nose at
the free end of the table which is mounted for
free turning movement about an axis extending
knife.
‘
'
_
'7. In an apparatus of the class described, the
combination with a frame, of a fabric-supporting
in the direction of feeding movement whereby 60 table mounted thereon and having a free end,
means mounted on the frame for feeding a tubu
the operator may manipulate said nose to keep
lar fabric over the table, a splitting knife to split
the guide line on the fabric in line with the split
the fabric as it is thus fed, fabric-opening means
ting knife.
situated between the fabric-feeding means and
3. An apparatus for splitting a tubular fabric
along a longitudinally extending guide line with 65 the knife to open the‘split fabric and smooth it
transversely, and means situated between the
which the fabric is provided, comprising a fabric
knife and the fabric-opening means to shift the
supporting table arcuate in cross section, means
fabric in a direction transversely to its length
supporting said table at one end, means to feed
as necessary to maintain said fabric in a central
the tubular fabric to be split over said table, a
position as it is fed to the fabric-opening means.
70
splitting knife to split the fabric along the guide
8. In an apparatus of the class described, the
line as it is fed forward, and a fabric opening
combination with a frame, of a fabric-supporting
nose at the free end of the table, said nose having
table mounted thereon, means mounted on the
a rounded end and being free to turn about an
frame for feeding a tubular fabric over said table,
axis extending in the direction of feed, whereby
a splitting knife to split the fabric as it is thus
the operator may manipulate said nose as the 75
9
2,410,146
fed, means carried by the frame and situated be
10
the entering end of the table over which the
fabric is fed and which is mounted for free turn
ing movement about an aXis extending in the di
tween the feeding means and the knife to open the
split fabric and smooth it transversely, fabric
guiding means situated between the knife and
rection of the feeding movement, whereby the
the fabric-opening means and comprising a roll 5 operator may manipulate said nose to keep the
resting on the fabric and adapted to be rotated
guide line on [the fabric as it passes from the nose
by the forward feeding movement thereof, and
to the table in line with the splitting knife, and a
means to turn the roll about an axis at right
detwisting ‘element in advance of said nose
angles to its own axis, whereby the engagement
adapted to act on the unsplit tubular fabric prior
of the roll with the forwardly moving fabric
to its delivery to the nose and remove any twist
causes the latter to be shifted in a direction
from said fabric.
transversely to its length.
13. In an apparatus of the class described, the
9. In an apparatus of the class described, the
combination with a frame, of means for feeding
combination with a frame, of a fabric-support
a web of fabric forwardly, a vertical shaft carried
ing table mounted thereon, means mounted on
by the frame, a convexly curved ‘fabric-guiding
the frame for feeding a tubular fabric over said
member carried by said shaft under which the
table, a splitting knife to split the fabric as it
fabric passes, a freely rotatable roll mounted on
is thus fed, means carried by the frame and sit
said guiding member and adapted to rest on and
uated between the feeding means and the knife
be rotated by the forwardly moving fabric, and
to open the split fabric and smooth it trans 20 means
to turn the shaft about its axis in either
versely, a vertical shaft carried by the frame be
direction, whereby the engagement of the roll
tween the knife and the fabric-opening means,
with the forwardly moving fabric causes the latter
a convexly curved fabric-guiding member car
.to
be shifted in a direction transversely to its
ried by said shaft under which the split fabric
length.
'
passes, a freely rotatable roll carried by said
14.
An
apparatus
for
splitting
a
tubular
fabric
guiding member and adapted to rest on and be
along a longitudinally extending guide line with
rotated by the forwardly moving fabric, and
which the fabric is provided, said apparatus com
means to turn the shaft about its axis in either
prising a fabric-supporting table, means support
direction, whereby the engagement of the roll
ing said table from one end, a fabric-opening nose
with the forwardly moving fabric causes the lat
at the free end of the table, means to feed the
ter to be shifted in a direction transversely to its
tubular fabric to be split to said free end of the
length.
.
table with the latter entering the tubular fabric,
10. In an apparatus of the class described, the
a splitting knife to split the fabric along the guide
combination with a frame, of a fabric-support~
line as it is fed forward, means beneath the table
ing table mounted thereon, means mounted on
in advance of the splitting knife to engage the
the frame for feeding a tubular fabric over the
inside of the unsplit tubular fabric and to sub
table, a splitting knife to split the fabric as it
ject the fabric to tension transversely of its
is thus fed, means carried by the frame and sit
length, whereby the portion of the fabric contain
uated between the feeding means and the knife
ing the guide line will be held in smooth contact
to open the split fabric and smooth it trans
with the table.
versely, means situated between the knife and 40
15. An apparatus for splitting a tubular fabric
the fabric-opening means by which the fabric
along a longitudinally extending guide line with
may be shifted in either direction transversely
which the fabric is provided, said apparatus com
to its length as necessary to maintain the fabric
in central position as it is fed to the fabric-open Wk ch prising a fabric-supporting table, means support
ing means, and means situated between the fab~ . ing said table from one end, a fabric-opening nose
at the free end of the table, means to feed the
ric-opening means and the feeding means for
tubular fabric to be split to said free end of the
extracting moisture from the fabric.
.table with the latter entering the tubular fabric,
11. In an apparatus of the class described, the
combination with a frame, of a fabric-supporting 50 a splitting knife to split the fabric along the
guide line as it is fed forward, a tension roll situ
table mounted thereon, means mounted on the
ated beneath the table in advance of the splitting
frame for feeding a tubular fabric over the table,
knife and adapted to engage the inside of the un
a splitting knife to split the fabric as it is thus
split tubular fabric, thereby to subject said fabric
fed, detwisting means situated in advance of the
table and adapted to act on the tubular fabric 5 to su?icient tension transversely of its length to
maintain the portion of the fabric having the
being delivered tothe table to remove any twist
guide line in smooth contact with said table.
therefrom, means carried by the frame and situ
16. In an apparatus of the class described, the
ated between the feeding means and the knife to
combination with means to feed a web of fabric
open the split fabric and smooth it transversely,
forwardly, of a roll-carrying member above the
means situated between the knife and the fabric
opening means by which the split fabric may be 60 fabric, means supporting said member for turn
ing movement about a vertical axis situated at
shifted in either direction transversely to its
right angles to the direction of feed of the fabric
length as necessary to maintain the fabric in cen
and substantially midway between the edges of
tral position as it is fed to the fabric-opening
means, and means situated between the fabric— 65 the fabric, a roll freely rotatable on said member
and engaging the top face of the fabric at a point
opening means and the feeding means for extract
substantially
midway between its edges with suf
ing moisture from the fabric.
ficient pressure so that the roll will be rotated
12. An apparatus for detwisting tubular fabric
by its frictional engagement with the fabric as
and splitting it along a longitudinally extending
the
latter is fed forward, and manual means for
guide line with which the fabric is provided, com
turning the roll-carrying member about its axis
prising, a fabric-supporting table, means to feed 70 .thereby
to change the angular position of the
the tubular fabric to be split over the table, a
axis
of
the
roll, with the result that the fabric
splitting knife to split the fabric along the guide
Will be shifted sidewise.
line as it is fed forward, a fabric opening nose at
HAROLD W. BIRCH.
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