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Патент USA US3066713

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Dec. 4, 1962
o‘ FIRING
3,066,703
NARROW FABRIC LOOM
Filed July 15, 1959
7 Sheets-Sheet 1
INVENTOR
Osborne Firin
BY Q/K
ATTO R N EY
Dec. 4, 1962
o. FIRING
3,066,703.
NARROW FABRIC LOOM
Filed July 13, 1959
'7 Sheets-Sheet 2
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INVENTOR
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Osborne F'mn
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Dec. 4, 1962
o. FIRING
3,066,703
NARROW FABRIC LOOM
Filed July 13, 1959
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7 Sheets-Sheet 3
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INVENTOR
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Osborne F'frm'
BY
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ATTORNEY
Dec. 4, 1962
o. FIRING
3,066,703
NARROW FABRIC LOOM
Filed July 13. 1959
7 Sheets-Sheet 4
INVENTOR
Osborne F'Trin
ATTO RNEY
Dec. 4, 1962
o. FIRING
3,066,703
NARROW FABRIC LOOM
W \\\N
INVENTOR
Osborne Fi‘ring
ATTORNEY
Dec. 4, 1962
o. FIRING
3,066,706
NARROW FABRIC LOOM
Filed July 13, 1959
'7 Sheets-Sheet 6
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INVENTOR
Osborne Firing
BY %%
ATTORNEY
Dec. 4, 1962
o. FIRING
3,066,703
NARROW FABRIC LOOM
Filed July 15, 1959
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INVENTOR
Osborne F'l'rins
ATTORNEY
3,@%,7d3
. States
Patented Dec. 4, 1962
1
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Edi-56,74)?’
NARRQWV FAERHC LOOM
@sborne Firing, fisherman Hill, ‘Wood-bury, tConn.
Fired .l'nly 13, 1959, der. No. 826,667)
12 (Claims, (Qt. 139-124)
My invention relates to narrow fabric looms of the type
employing a weft laying needle for projecting the ?ller
FIG. 3 is a partial vertical section one line 2——2 of
FIG. 6 looking from the back toward the front;
HQ. 4 is a vertical cross'section on line 4——4 of FIG. 6;
FlG. 5 is a vertical cross-section on line 5-5 of FIG. 6;
FIG. 6 is a horizontal section on line 6—6 of FIG. 2;
FIGS. 7 and 8 are detailed views showing two positions
of the wobble plate device for oscillating the weft laying
thread bet can the warps and a knitting needle or the
FIG. 9 is a partial plan view on an enlarged scale and
like for catching the projected ?ller threads and forming 10 indicating
the path of the weft laying needle;
a selvage edge along one side of the tape.
in some of its aspects, the invention is useful for the
weaving of various types of narrow fabrics. it embodies
novel features of construction and arrangement for parts
providing for:
(l) Unusually small over-all size.
FIGS. 10 to 14 are schematic views showing different
positions‘ of the devices which handle the special warps for
tieing in the cords;
FIG. 15 is a detail in perspective of the laying needle;
FIG. 16 is a detail of the cord guide;
(2) Simplicity and low cost of manufacture and as
sembly of parts.
(3) A manner of handling the warp and filler threads
FIG. 17 indicates diagrammatically the position of the
knitting needle when projected through the loop of the
weft thread to its fullest extent;
PEG. 18 is a section illustrating the relative position of
to keep the amount of lint and breakage to a minimum. 20 the laying and knitting needles in this fully projected posi
(4) Arrangement of all joints and hearings in a single
enclosure where they may operate in an oil bath thus
eliminating the use of an oil can or the like or any danger
of soiling the fabric.
(5) Quietness and increased speed of operation.
However, a still further important objective is to provide
a loom capable of weaving a corded edge tape having
fundamentally better characteristics for zipper fasteners
than corded edge tapes heretofore produced.
Other
needle looms are capable of weaving in the cords by han
dling the cords as ordinary warps and surrounding them
with the filler threads, but my improved loom utilizes spe
cial cord tie-in warps which are tightly woven with the
weft close against the cords, each special warp ?rst on
one side for the desired interval, then crossing a cord and
woven with the weft on that side for the desired interval
and crossing back and repeating, whereby the cords are
held ?rmly on the edge of the tape by such special warps.
tion;
PEG. 19 is a diagram showing to an exaggerated degree
the vertical angular position of the laying needle and
knitting needle at this fully projected position;
FIGS. 20, 21 and 22 are similar to FIGS. 17, 18 and
19 showing the parts in an intermediate position; and,
FIGS. 23, 24 and 25 are corresponding views showing
the positions of the needles when the knitting needle has
caught the loop of weft thread.
The working parts of the loom are supported by a box—
like casting or frame which is open at the bottom and
which has a ?at top wall 1, sidewalls 2 and 3 and front
and back walls 4 and :3 respectively. lournaled in suit
able bearings in the sidewalls 2 and 3 is the main drive
shaft '6 which is power-driven through the pulley 7.
For operating part of the warp harnesses, there is a
shaft 8 journaled in bearings attached to the sidewalls 2
and 3 which is driven by the gear 9 on the main shaft 6
In a more speci?c aspect, an object of the invention is
meshing
with the gear lti keyed to the shaft 8 as best
to provide an improved action of the weft laying needle 40
seen in PEG. 6. The ratio of this gearing is 1 to 2 so that
and novel mechanism for actuating the same so that the
the shaft 8 turns at half the speed on the main shaft.
laying needle oscillates about an axis in the center line of
the
‘
‘ic, while at the same time a movement is im~
" d to the needle toward and away from the fell of
On the opposite side, there is a second harness-operat
ing shaft 11, also supported in bearings carried by the
sidewalls Z and 3 and driven by gear 12 on the main
r e fabric so that the laying needle is projected into the 45
shaft
and gear 13 on the shaft 11. The ratio of the
shed an arched path a short distance away from the fell
gearing in this case is 1 to 4 so that shaft 11 will turn
of ’
fabric and retracted in a path close to the fell of
at only one-quarter of the speed of the main shaft.
' bric in approximately a straight line, thus avoid
ing the necessity of a separate beat-up device.
1' rrther object is to avoid interference between the
Weft Laying Needle Action
1
die and weft laying needle by utilizing the
small i
.l component of the oscillating movements of
both needles.
The weft laying needle 14 is attached to an arm 15
which curves downwardly and towards the center line of
they loom where it is connected to a vertical shaft 16.
My invention further provides improved means adja~
cent the laying needle for continuously and positively pay
17 which are ?xed in a hub 18 that is part of a lever 19.
This shaft (see FIG. 2) is journaled in suitable bearings
As best seen in FIG. 6, this lever is yoke-shaped on the
fulcrum end, having one arm 20 pivoted on a pin 21
The invention further provides improved shed-forming
projecting from the front wall 4 and the other arm 22
me: auism with warp harnesses ?rmly supported inde
pivoted on a pin 23 projecting from the back wall 5 of
pendently of one another in cantilever fashion closely ad
the frame.
jacent each other and also very close to the needle path 60
The needle~carrying shaft 16 derives an oscillating
and which are operated from the main shaft by a simple
motion about its own axis through a suitable mechanical
gear
cam arrangement enclosed in the oil bath men
movement from the main shaft 6 so that there is one com
tioned above.
plete oscillation to project the needle into and retract it
r objects and advantages of the invention will here
from the shed during each revolution of the main shaft.
inafter more fully appear. In the accompanying draw
This mechanical movement may take the form of a
ings, l have shown for purpose of illustration, one em
wobble plate mechanism which utilizes a cylindrical ac
bodiment which the invention may assume in practice. In
tuator 24 keyed to the main shaft with the geometrical
these drawings:
axis
of the cylindrical actuator at a substantial angle to
l is a plan view of my improved loom;
i
the shaft. Surrounding this actuator is a box-like fol
EEG. 2 is a central vertical section on line 2—2 of,
lower 25 which has vertical side plates 26 and 27 fastened
PEG. ‘6;
at one end of the needle-carrying shaft 16 and at the other
ing oil the proper amount of filler thread.
acne/res
‘:7
end, to a suitable spacer block. The spacing of the
plates 26 and 27 corresponds to the diameter of the ac
tuator 24 so that as the shaft rotates (for example: from
the position shown in FIG. 7 to the position shown in
FIG. 8), the needle-carrying shaft 16 will turn through
an angle proportionate to the angle between the axis of
the actuator and the main shaft.
4
59 (herein four such jacks) are in the form of vertical
rods slidable through suitable hearings in the top wall of
the frame and carrying at their upper ends, U-shaped
heddle frames 6%} between which the desired number of
heddles are supported; one such heddle being indicated
at 61 in FIG. 4.
Each of the rods or jacks 59 is attached at its lower
end to a rectangularly shaped slide 62, one of the slides
Simultaneously with the oscillating movement of the
62 appearing in full and another 6211 in part. Each slide
weft laying needle, a to-and-fro movement is imparted
operates
in a ?xed groove 63 in the sidewall and a ?xed
10
to the needle by another mechanical movement between
the lever 19 and the main shaft 6. This may be ac
complished by a suitable eccentric 28 on the main shaft
groove 64 formed on a block 65 cast integrally with the
frame. Each of the slides is operated in the desired timed
sequence by suitable cams, one of which es appears in
connected to a spherical bearing 29‘ which is carried by
full and another 66a. in part. Each cam operates betwee
the projection 30 on the lever 19. The connection of the
eccentric to the main shaft may also be by a spherical 15 and bears at all times against wear plates 67 so that the
harnesses are driven both upwardly and downwardly in
bearing to permit the slight rocking motion of the eccen
a positive manner from the shaft 11. The cams are de
signed so as to provide a substantial dwell at each ex~
tric. Thus as the main shaft turns, the lever 19 will be
rocked about the pins 21 and 23 to give the needle a slight
in-and-out movement. It will be noted that the pivot
axis of the lever 19 during this rocking motion is directly
trerne position of the shed.
below the line of the weaving or the fell of the fabric so
that even though the rocking motion of the lever moves
nesses as desired.
the needle through a slight arc, the vertical component of
the motion is so slight as to be of no consequence.
Knitting Needle Action
Each of the slides has its
own operating cam so that various types of weaves may
be produced by arranging the cams to operate the har—
0n the other side, there are four similar jacks 58 oper
ated in a similar manner by slides 69 and earns "ill from
25 the shaft 8 except, of course, that the up-and-down
movement is twice as frequent as in the case of the ?rst
four jacks; thus the jacks of} will move up for each com
The knitting needle 31 as seen in plan view in F165. 1
plete cycle of the weft laying needle and down for each
and 9, is attached to the end of lever 32 which pro~
next succeeding cycle. It should be noted that the heddle
jects through a small slot 32a in the top wall of the frame.
As best shown in FIGS. 3 and 5, the lever 32 is pivoted 30 frames are rigidly held in cantilever fashion, each by a
single jack and the frames on one side extend between
at 33 on a suitable boss of the frame casting and derives
those on the other. Thus the frames may be spaced only
a small oscillating movement about the pivot 33 from the
half the distance apart as in other looms, resulting in a
cam 34 on the main shaft engaging roller followers 35
This mechanism is,
more compact arrangement, and one which lends itself
proper time to pick up the loop of the projected double
weft thread and knit it into the loop of the preceding
closest to the weft laying needle carry frames 71 similar
on the bottom end of the lever 32.
of course, designed to move the knitting needle at the 35 better to high speed operation.
Two of these jacks 68
to the frames as and may support the desired number of
heddles to provide the desired effect in the weave, but
the other two of the jacks carry the special warps which
Power Feeds for Filling Thread and Finished Tape 40 are used for tieing in the cords C.
To the upper end of these latter jacks are attached
The ?ller thread F comes from a spool or other suit
angularly-shaped arms 7'2 and 73, the ?rst of which car
able source, passes around the feed roller 35 against
ries a downwardly projecting short needle-like heddle 74
which the thread is held by an idler roll 37 which may be
for one of the special warps and the other carries an
supported on an arm 3f‘) pivoted on a stud 3% and held
double weft, in a manner well understood in the art.
in place by the‘ ?exible end of a lever 4!} which may be 45 upwardly projecting similar needle-like heddle 75.
Each of the jacks as for operating these special warps
caught behind the stop pin 41 (see PEG. 1). The feed
carries adjacent its lower end, an inwardly projecting
roller 36 is continuously and positively driven as seen in
arm, the front one of which as seen in PEG. 4, is num
FIG. 5 by the helical gearing 42 and 43 from the harness
bered 76 while the other is numbered 77. The arm '76
operating shaft 8 through the vertical shaft 44 which has
bearings in lug 45 cast integral with the frame and in the 50 has an upwardly projecting pin 78 and the arm 77 has
a similar downwardly projecting pin 79. These pins are
top wall of the frame.
in an engagement with opposite side faces of gear 89
From the feed rolls, the ?ller thread passes through an
which carries cam projections 81 and 82 on its opposite
eye 46 of a light coil spring 47 (FIG. 9) and through
sides of the gear (see also PEG. 2) and the pins f3 and
the eyes 48 and 49 of the weft laying needle 14, which
are connected by a thread track or groove 5%‘ in the needle. 55 79 are of such length that they will be in the path of
such cams whatever the vertical position of the jacks
The means for positively feeding the ?nished tape from
may be. These pins also slide between the arms of a
the machine and which may be called the take~up device,
U-shaped spring 33 which tends to hold them against the
is power-driven from the slower running harness-operat
face of the gear 8t? and this spring can be supported in
ing shaft 11 through a worm 51 on the shaft ll, worm
any suitable manner such as by a block 34 ?xed to the
gear 52 and vertical shaft 53 journaled in lug 54 and in
underside of the top wall 1.
the top wall of the frame.
Mounted on the upper end of the vertical shaft 53 is
the driven knurled take-up roller 55 against which the
The cam-carrying gear 8% is mounted so as to be freely
rotatable on the main shaft 6 in any suitable way such
as between a spacing sleeve 85 and a collar 86. This
tape is held by an idler roll 56 mounted in a suitable way
so that it may be swung away from the take up roller 65 gear 80 is driven from the slower running harness
operating shaft 11 by means of a gear 87 keyed to shaft
‘55 to insert or remove the tape (see FIG. 1). As the
11. In the embodiment shown, the ratio of the gears 87
tape T emerges from the loom, it passes over the block
and 80 is l to 2 so that the cam-carrying gear $0 will
or breatbeam 100' carrying guide ?anges Hit and under
make one revolution for every 8 revolutions of the main
a horizontal bar 57 from which it twists into a vertical
plane and goes around idler roll 58‘ on its way to the 70 shaft 6. If desired, an optional gear may be provided
on the faster running harness shaft 8 so that if desired,
take-up roller 55.
the cam gear can be driven faster, for example, one
Warp Handling
revolution for every four revolutions of the main shaft.
Considering ?rst the harnesses which are operated by
The cam projections 81 and 82 extend approximately
the slower running shaft 11, the desired number of jacks 75 half way around the gear 8%. As seen in FIG. 1, the
aoeeyroa
5
6
pins 78 and 79 are riding on the face of the gear 80
when the upper short heddle 74 is located inwardly of
the lower heddle ‘75. When the pins 78 and 79 are
pushed outwardly by the cams 81 and 82, the arms 72
position of the knitting needle indicated by the line K-ll
in FIG. 19 is ready to swing clockwise from the vertical
position so that the vertical component of the motion
will tend to lower the knitting needle.
and 73 will swing so as to reverse the positions of the
upper and lower heddles 74 and '75.
The action of these arms and heddles which carry the
special tie-in warps will be understood from an exami
nation of FIGS. 10 through 14. FIG. 10 shows the posi
tion where the upper arm and heddle have about com
pleted the interval of interweaving the special warps with
In FIGS. 20 and 21 can be seen an intermediate posi
tion where the knitting needle has moved partially out
of the recess 90, and the approximate angular positions
of the laying and knitting needles are indicated at L-Z
and K-2 in FIG. 22. In FIGS. 23, 24 and 25 it is clear
10 that the movement has carried to the point where the
knitting needle is controlling the loop of the weft thread
ready to knit it into the next preceding loop with the
angular positions of the needles indicated at L-3 and
When this happens, the heddles will have cleared the
K-3. Here it is seen that the knitting needle is clearing
cords C—1 and C—2 and will switch positions to opposite 15 the laying needle without any interference or rubbing
sides of the cords, and FIG. 11 shows the beginning of
action of one needle on the other. This results in
the normal weaving of the special warps SW4 and SW-Z
smoother operation and longer life, especially of the
after they have crossed the cords. FIGS. 12 and 13 show
knitting needle. At the same time, this relative vertical
further positions of the heddles 74 and 75 at diiferent
movement of the needles is accomplished in a rhythmic
positions of the regular warp threads W. It will be 20 manner without the necessity of additional mechanism
understood that during the interweaving of the special
for that particular purpose since it is an automatic result
warps with the body of the tape, the special warps will
of the normal actions of the laying needle and the to
cross the ?llers at each charge of the shed so as to pro
and-fro movement of the knitting needle.
duce a tight weave close up to the cords and give a ?rm
As above mentioned, all the gears, cams, bearings etc.
anchorage to the cords. With the arrangement illus
as a result of the novel character and arrangement of
the ?ller thread F and where the pins 78 and 79‘ are
about to ride off the cams on to the face of the gear 80.
trated, the special warps are made to cross over at every
the mechanisms are grouped together in a compact man~
ner within the frame-like housing. This housing as seen
in FIG. 2 can be set into a hollow container 91 which
fourth double pick or at every fourth charge of the shed,
but with the optional gear above-mentioned, they could
be made to cross over every second double pick or every
may be ?lled with oil up to approximately the level of
second charge of the shed. FIG. 14 shows the position 30 the main shaft. Thus everything requiring lubrication is
where the heddles 74 and 75 have switched back to their
lubricated automatically without the necessity of any oil
original position carrying the special warps across the
being accessible to the top of the machine.
cords.
The warp harness jacks slide through bearings in the
It will be understood that cords C—-1 and C-2 are lead
top plate, and the small slots in the top plate through
in through suitable guides and under substantial tension. 35 which the knitting needle lever and weft laying needle
One or more cord guides may be provided such as the
shaft operate may be covered by light metal pads sliding
bracket 83 with guide opening 89 secured to the top plate
on top of the frame wall 1.
of the machine (see PIG. 16).
Various modi?cations and changes from the speci?c
Due to the two mechanical movements which have
embodiment which has been shown and described will
been described for operating the weft laying needle, the
readily occur to those skilled in the art; for example, a
forward eye 49 will traverse a path as indicated by the
weft laying needle may be employed on each side of the
line P. As seen in FIG. 9, the action of the lever
tape along with two knitting needles forming a knitted
rocking mechanism has moved the needle in a direction
selvage on both sides.
away from the fell of the fabric where it may be pro
What I claim:
jected on its inward oscillating movement through the 45
1. In a loom of the class described, means for forming
shed at a su?icient distance from the fell of the fabric
and changing the shed between warp threads, a weft lay
to avoid interference with the warps or with the cords
ing needle, means for imparting to said needle an har-'
C—1 and (3-2. Then, after it has completed its path
monic oscillating movement about a vertical axis in a
through the shed, the action of the rocking lever tends
direction to project the same through and retract it from
to pull the needle close in to the fell of the fabric and
the shed‘, and means for simultaneously imparting to said
during its retraction, the inner edge of the needle will
needle 21 second harmonic oscillating movement about a
bear close against the filler threads and to all intents and
horizontal axis in a direction toward and away from the
purposes serve to pack or beat up the filler threads to a
su?icient degree without the need of a separate beat-up
device.
The detail of the weft laying needle as shown in FIG.
15 shows it to be a generally ?at blade-like piece of
metal which is preferably somewhat wider near the end
where it is attached to the arm 15. On the underside
adjacent to forward eye 49 of the needle is a recess 90
into which the knitting needle 31 moves to pick up the
projected loop of ?ller thread and knit it into the preced
ing loop. The relative positions of the knitting needle
and laying needle when the knitting needle is projected
through the loop of weft thread and while moving to
catch such loop are shown in FIGS. 17 through 25.
fell of the fabric, whereby the needle is substantially
closer to the fell of the fabric when it is being retracted
from the shed than when it is being projected through
the shed.
'
2. In a loom of the class described, the combination
de?ned in claim 1 wherein the axis of the ?rst oscillating
movement is located substantially centrally of the shed
and fabric, and wherein the axis of the second oscillating
movement is parallel to and vertically below the fell of
the fabric.
3. In a loom of the class described, means for forming
a shed, a weft laying needle, means for mounting said
needle to oscillate about a vertical axis passing through
a central part of the shed, a horizontally extending drive
In the ?rst position, the knitting needle is projected
well through the loop of the weft While being held by the
shaft mounted below said shed, a mechanical movement
line L—1 in FIG. 19 so that any movement from this
to said needle mounting means a to-and-fro movement
between said shaft and mounting means whereby said
laying needle and in so doing, it enters the recess 9ft on
mounting means derives a complete oscillating movement
the underside of the needle. At this point, the weft 70 about said axis from each revolution of the drive shaft
needle carrying shaft 16 will be in approximately its
of such amplitude to move the needle across and return
farthermost counter-clockwise position as indicated by
it from the shed and‘ means for simultaneously imparting
position will have a vertical component tending to ele
vate the laying needle. At the same time, the angular
with respect to the fell of the fabric, of the same fre
quency as said oscillating movement whereby the needle
sesame
55
'7
0nd needle-like
of the shed and
the other cord,
the changes of
with the weft,
is ‘projected into the shed in a curved path a substantial
distance from the fell of the fabric and is retracted from
the shed in a path close to the fell of the fabric.
4. In a loom of the class described, means for forming
and changing the ‘shed between warp threads, a Weft lay
ing needle, mounting means for said needle including a
heddle mounted on the opposite side
carrying a special warp for weaving in
means for operating said heddles with
shed to interweave the special warps
and means for laterally shifting said
heddles at intervals from one side to the other of the
cords to form cord tie-in loops.
9. The combination de?ned in claim 6 wherein the
lever pivotally mounted on an axis parallel to and sub
stantially directly vertically below the fell of the fabric
two heddles during weaving are always on opposite sides
and a vertical needle-carrying shaft carried by said lever;
a main drive shaft directly below and parallel to the l0 of the cords and are simultaneously switched over the
cords at intervals between successive series of changes of
the shed.
center line of the shed, a mechanical movement connect
ing said drive shaft and said needle-carrying shaft for
10. In a narrow fabric loom adapted to weave into a
imparting an oscillating movement to the needle to pro
tape two cords on opposite sides of and along one edge
ject the needle through and retract it from the shed
during each revolution of the drive shaft and a connec 15 of the tape, means for moving ordinary warp threads for
forming and changing a shed, a weft laying needle and
tion between said drive shaft and said lever for oscil
operating means therefor adapted to project into the
lating the lever to impart to the needle a to-and-fro
shed a double pick at each change of the shed, means
movement with respect to the fell of the fabric during its
for catching the projected picks and forming a selvage
oscillating movement into and out of the shed.
5. In a loom of the class described‘, the combination 20 edge, means for guiding a pair of cords above and
below the tape near that edge opposite the selvage edge;
de?ned in claim 4 wherein said mechanical movement
and means for handling special warp threads for tieing
connecting said drive shaft and needle-carrying shaft is
in the cords which includes a pair of vertically extending
a wobble plate mechanism having a cylindrical actuator
jacks, an arm extending at an angle from each jack, one
?xed to the shaft with the geometrical axis of the actua
tor at a substantial angle to the shaft, and a box-like 25 above and the other below the shed, a needle-like heddle
at the end of each arm, one projecting downwardly from
follower around the actuator and connected to the needle
the upper arm and the other projecting upwardly from
carrying shaft, said follower having vertical side plates
the lower arm, means for operating said jacks upwardly
contacting the cylindrical actuator on opposite sides.
and downwardly to interweave said special warps with
6. in a loom of the class described, means for form
ing and changing the shed between warp threads, a weft 30 the picks on opposite sides of the cords, and means for
intermittently turning said jacks through a small angle
laying needle, means for imparting to said needle an
oscillating movement in a direction to project the same
about a vertical axis and in opposite directions to move
through and retract it from the shed, means for simulta
neously imparting to said needle a second oscillating
the needle-like heddles across the cords at intervals to
form cord tie-in loops.
movement about a horizontal axis in a direction toward 35
and away from the fell of the fabric, whereby the needle
is substantially closer to the fell of the fabric when it is
being retracted from the shed than when it is being pro
jected through the shed, a knitting needle and operating
means therefor to move the knitting needle in a to-and
fro path along one edge of the shed to catch loops of
weft threads projected by said laying needle and knit
11. In a loom of the class described, the combination
de?ned in claim 10 wherein the jack operating means
comprises a drive shaft, cam shafts geared to the main
shaft, one directly under each set of jacks and carrying
a cam for each jack, a cam follower attached to each
40 jack and bearing on both the bottom and top of its
cam, whereby the jacks are positively actuated in both
directions.
12. in a loom of the class described, means for form
ing a shed between the warp threads, at welf laying needle
jected through a loop, said second oscillating movement 45 mounted for movement into and out of the shed, the
needle having an eye near its free end through which
of the laying needle being timed in such a way that the
the weft thread passes and means for supplying the weft
'vertical ‘component of the same is in a direction away
threads from a stationary source including continuously
from the knitting needle as the knitting needle withdraws
driven feed rolls mounted adjacent the needle on one
from said recess in catching a loop of weft thread.
7. In a loom of the class described, the combination 50 side of the shed and a slack take-up device on the oppo
site side of the shed and through which the weft thread
de?ned in claim 6 wherein the knitting needle has an
passes on its way from the feed rolls to the eye of the
oscillating motion on a horizontal axis being timed so
that it has a vertical component opposite that of the
needle.
knitting needle so as further to assist in moving the
knitting needle away from the laying needle as it with 65
References €ited the ?le of this patent
draws in catching a loop of weft thread.
UNITED STATES PATENTS
8. In combination with a narrow fabric loom of the
type employin.‘T means for forming and changing a shed
2,095,480
Schlegel ____________ __ Oct. 12, 1937
and a. Weft laying needle, means for weaving in cords
2,497,077
Firing et a1. _________ __ Feb. 14, 1950
on opposite sides of and along one edge of a tape which 60
2,552,418
Firing et al. __________ __ May 8, 1951
comprises means for guiding said cords to opposite sides
2,625,959
Turner _____________ __ Jan. 20, 1953
of the needle path adjacent one side of the shed, a ?rst
2,902,357
Turner _____________ __ Sept. 1, 1959
needle-like heddle mounted on one side of the shed and
2,907,352
Kronotf _____________ __ Oct. 6, 1959
carrying a special warp for weaving in one cord, in sec
them into a selvage edge, said laying needle having a
recess into which said knitting needle enters as it is pro
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