U.S. patent number 3,879,964 [Application Number 05/273,018] was granted by the patent office on 1975-04-29 for method and apparatus for making a novel fabric.
Invention is credited to Antonio Blasi Pascual.
United States Patent |
3,879,964 |
Pascual |
April 29, 1975 |
METHOD AND APPARATUS FOR MAKING A NOVEL FABRIC
Abstract
Method and apparatus for making a novel fabric in which a first
and a second series of longitudinal threads are fed; threads of the
second series are moved in a certain extension transversally to the
threads of the first series; and each moved thread of the second
series is interwoven with the respective thread of the first series
changing the sense of movement of the threads of the second series
in successive cycles in the fabric formation; the movement of the
threads of the second series being effected by means of a
complementary series of knitting machine needles inserted between
conventional needles of a warp knitting machine which are moved
apart from said conventional needles, then transversally moved and
finally reinserted in a new location between said conventional
needles.
Inventors: |
Pascual; Antonio Blasi (Tarrasa
(Barcelona), ES) |
Family
ID: |
4364898 |
Appl.
No.: |
05/273,018 |
Filed: |
July 18, 1972 |
Foreign Application Priority Data
|
|
|
|
|
Jul 19, 1971 [CH] |
|
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010598/71 |
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Current U.S.
Class: |
66/87; 66/190;
66/203; 66/192 |
Current CPC
Class: |
D04B
23/02 (20130101); D04B 21/06 (20130101); D04B
23/22 (20130101); D04B 27/06 (20130101) |
Current International
Class: |
D04B
23/00 (20060101); D04b 023/02 () |
Field of
Search: |
;66/86,193,190,192,84A |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Feldbaum; Ronald
Attorney, Agent or Firm: Wenderoth, Lind & Ponack
Claims
I claim:
1. In a warp knitting machine comprising at least one guide bar
which feed and guide warp threads which are to form the warp knit
fabric and at least one knitting machine needle bar, the
arrangement comprising:
at least a first and second complementary guide bar said bars
synchronized with the guides feeding the warp threads, for feeding
respectively a first and a second series of longitudinal warp-like
threads and for guiding said longitudinal threads and inserting
them between the warp-like threads which form the warp knit
fabric;
at least one complementary needle bar having needles similar to
knitting machine needles, synchronized with the needles of the
machine and operatively positioned to be inserted between the
conventional needles of the machine;
complementary operating means coupled to said complementary needle
bar for separating the needles thereof from the conventional
needles of the machine, moving said complementary needles
transversely to the conventional needles of the machine and
reinserting said complementary needles at a new location between
said conventional needles; and
complementary operating means operatively positioned for moving
said complementary first and second guide bars in such a manner
that the threads of said second series are wound around the
respective threads of said first series.
2. The apparatus of claim 1 wherein said complementary needle bar
is divided in several groups of needles and further comprising
means operatively disposed to operate each of said needle groups
independently from the others.
3. The apparatus of claim 1 further comprising means operatively
positioned to individually operate each needle of said
complementary needle bar.
4. The apparatus of claim 2 comprising means operatively positioned
for selecting the groups of complementary needles which are to be
operated at each working cycle of the machine.
5. The apparatus of claim 3 comprising means operatively positioned
for selecting the individual needles which are to be operated at
each working cycle of the machine.
Description
This invention relates to fabric and to a method of and apparatus
for producing the fabric.
As is already known the types or classes of fabric most used at
present are warp and weft fabrics and mesh fabrics, each having
advantages and disadvantages which make them suitable for specific
uses.
The main characteristic of warp and weft fabric is its almost zero
elasticity in either direction. It also allows for a large number
of different weaves and combinations of colors with almost any yarn
material, may be spun from either continuous or discontinuous
fibres or filaments, and is used for a great variety of articles in
almost all sectors of the textile industry.
However, because of the structure of the fabric and the limitations
of weaving looms, it has not been possible, in spite of all efforts
and technical progress as regards the speed of the machines, to
achieve the rates of production and low costs required by current
industrial, commercial and social developments.
With mesh fabrics, especially knitted fabrics, very acceptable
production in terms of m.sup.2 /hour/machine, and low cost have
already been obtained, and because of their ease of production, it
is expected that such fabrics will be even more widely used in the
near future, and that this will apply to all sectors of cloth
production. However, these fabrics and the machines for producing
them have many limitations or disadvantages; first, it is necessary
to work with extremely regular and elastic spun yarn composed
either of continuous threads, which limits their use to a few
sectors, or discontinuous fibres, made from multi-ended threads,
which are very costly and which often necessitate reducing the
speed of the machines to limits which adversely affect their
purpose and profitability. Second, although fabrics with
considerably reduced elasticity can be made, in general their
principal characteristic is that they have a high degree of
elasticity in one or both directions, which is another obstacle to
their use in many possible applications.
It is true that fabrics with characteristics similar to those of
woven cloth or similar fabrics have recently been obtained on
Ketten-Raschel machines, but this is always achieved using a
conventional chain knitted structure as a support, with continuous
thread materials being used normally on the back of the fabric and
being linked on the right side of the fabric with other threads or
materials made from discontinuous fibres, which give to the fabric
a characteristic quality.
With special devices fitted to Ketten-Raschel machines, it has been
possible to insert weft threads extending over the whole width of
the fabric and arranged in a rectilinear manner parallel to each
other, and it is these weft threads which give the finished fabric
the required quality since these threads are linked to the base
fabric by stitches or chain-stitches, the fabric usually being
composed of very fine continuous threads which act as warps,
resulting in an almost completely inelastic fabric. However, apart
from the technical/mechanical difficulties of effective and regular
insertion of the weft threads and the need for a very particular
spun yarn material for each article, it is practically impossible
to produce a patterned fabric; only plain material, more or less
shiny, and with the appearance of a series of threads arranged side
by side and in parallel, can be produced.
The present invention is intended to provide a fabric and a method
of and apparatus for producing same, which combines the advantages
of the two types of known fabric mentioned above, i.e. warp and
weft fabric and mesh fabric, and more particularly chain knitted
fabric, and which, besides being capable of a high rate of
production similar to that of conventional knitted fabric, is
practically inelastic in length or width, and which it is possible
to produce in a wide variety of patterns and special effects.
Another objective which can be achieved is that of being able to
obtain a wide range of quality, appearance and feel as desired,
varying from the most elementary elastic knitted fabric to the
hardest or most inelastic warp and weft fabric, through all the
intervening gradations.
The invention provides a fabric comprising a first series of theads
which extend generally longitudinally of the fabric and serve as
warps and a second series of threads which extend generally
longitudinally of the fabric and are intercalated with threads of
the first series, the threads of the second series each being
displaced transversely with respect to said first series of threads
first in one direction and then in the other direction so as to
cross at least one of said first series of threads and form floats
which extend transversely of the fabric and which serve as partial
wefts, each of the threads of the second series being linked with a
thread of the first series at each end of each float.
The invention also provides a method of forming the fabric,
characterised by providing at least a first series of threads which
extend generally longitudinally of the fabric in the manner of
warps, and at least a second series of threads intercalated between
the threads of the first series and extending generally
longitudinally of the fabric; producing, in each successive fabric
formation cycle, the displacement of at least one of the threads of
the second series in a transverse direction relative to the first
series of threads and to an extent corresponding to the space
occupied by at least one of the threads of the first series,
changing, in some of the fabric formation cycles, the direction of
said displacements; and linking each thread of the second series,
after each of the displacements, with the respective thread of the
first series with which it coincides in its new position, the said
displacements of the threads of the second series forming floats
which extend transverse to the direction of the first series of
threads, in the manner of multiple partial wefts.
In addition to the first series of threads and the second series of
threads forming the transverse floats, a third series of generally
longitudinally extending threads can be used, which are knitted and
between whose stitches the other series of threads are intermingled
and interlaced. Alternatively, the first series of threads can be
knitted and the threads of the second series forming the transverse
floats linked directly to the knitted threads.
The invention further provides apparatus for carrying out the
method, comprising means for feeding said first and second series
of threads in the manner of warps; means for engaging each of the
threads of the second series, separating them from the threads of
the first series, displacing them transversally to a predetermined
extent with respect to the threads of the first series, and
intercalating them again between other threads of the first series;
and of means for ensuring that the said threads of the second
series are linked with the respective threads of the first series
with which they coincide in their new position.
In a preferred embodiment, this apparatus can be used on a knitting
machine of the Ketten or Raschel type, in which, in addition to the
usual members for effecting knitting, there are also guide bars for
feeding the first series of threads and the second series of
threads which are to form the weft floats, means for transferring
the second series of threads to additional needles interposed
between the normal needles of the machine and forming a single
alignment therewith but which, by means of a separating and
transferring movement can change position relative to the said
normal needles of the machine.
To summarize, the fabric, the method and the apparatus which are
the subject of the present invention, exceed what is currently
known about fabric manufacture, achieving the following
advantages:
the resulting fabrics can have practically the same characteristics
in respect of feel, elasticity, etc., as those manufactured on
conventional warp and weft looms.
it is possible to choose the elasticity appropriate to each article
for which the fabric is used.
a wide range of patterns can be obtained with a single machine
without the need for long pattern chains, often substituting for
the Jacquard apparatus which must be used with existing
machines.
a rate of production or quantity of stitch courses per minute can
be achieved which is not less than that obtained on current
Ketten-Raschel machines.
the cost of the machines used is comparable to that of existing
knitting machines (Ketten or Raschel).
the machine can be provided with devices whose process is the
subject matter of one of our other patents, making possible the use
of materials (wool, cotton, synthetic fibres, mixtures, etc.) of
the same or lower quality as that of the single or multi-ended
materials usually used with shuttle looms. Furthermore there is the
great advantage of not needing to use for a single fabric different
classes of material or thicknesses of thread which has been
unavoidable to date in the many trials made with chain fitting
machines in order to obtain articles similar, to a greater or
lesser extent, to drapery, covers, curtains, etc.
The invention is further described below with reference to the
accompanying drawings, in which:
FIG. 1 is a schematic illustration of the basic structure of the
fabric according to the invention;
FIG. 2 illustrates schematically the basic fabric of FIG. 1
combined with a traditional knit structure;
FIG. 3 is a variation of the fabric of FIG. 2;
FIG. 4 is another example of a fabric according to the present
invention;
FIGS. 5 to 9 schematically show a side view of the chain knitted
structure (or knitted fabric or tricot (warp)) forming organs of a
Raschel chain knitting machine (or warp loom) along with the organs
which form the novel fabric related to the invention, showing the
successive phases of a complete fabric forming cycle.
FIGS. 10 to 14 are the prespective views of the same fabric organs
shown in the FIGS. 5 to 9, showing the successive movements of said
organs. In those FIGS. the conventional sinkers (19) have been
deleted for the sake of greater clarity in the drawings.
According to the invention the basic structure of the fabric shown
in FIG. 1, is obtained by having series of longitudinal warp like
threads 1, which in the case of FIG. 1 are fixed i.e. are not
moved, and a second series of longitudinal threads 2 intercalated
between those of the first series. At each pick or cycle for
producing the fabric, these threads 2 are displaced relative to the
threads 1 to an extent corresponding to the space occupied by a
given number of said warp like threads 1, which in FIG. 1 is three
threads, and then said threads 2 are linked to the respective
threads 1' with which they coincide after displacement, the
direction of displacement of threads 2 alternating in successive
stitch courses.
The threads 2, curing displacement, pass in front of some threads
1, as indicated at the points of intersection 3, and behind other
threads 1, as indicated at the points of intersection 4, in the
manner of woven threads, and are linked to the threads 1' by closed
stitches 5.
In this way, threads 2 form a series of floats 6, forming partial
wefts, which are linked by their ends to their respective warp
threads 1' and intercrossing with other intermediate threads 1,
producing a fabric which can be totally inelastic due to the
linking between said weft floats 6 and the warp like threads
1'.
Threads 2 forming the weft floats 6 can be arranged in equal or
different numbers compared with those of warp threads 1 and can be
distributed uniformly over the whole width of the fabric or be
divided into separate groups which may be equal or different and
whose density can vary at different areas of the width of the
fabric.
Also, the transverse displacements of threads 2 can be equal for
all the threads of all the stitch courses and change direction at
each stitch courses, as in the illustrated examples where floats 6
are equal and uniformly distributed, or some threads 2 can be
displaced on some stitch courses and other threads 2 on other
courses. The extent of these displacements can be varied as can the
direction of displacement after being displaced several stitch
courses in the same direction.
It will therefore be understood that by combining threads of
different thickness, colors and materials with these different
working forms, it is possible to obtain a very large variety of
patterns and effects.
Furthermore, the threads 1 and weft threads 2 forming the weft
floats can be arranged intercalated between threads of another or
other warps 7, which, as illustrated in FIGS. 2 and 3, form a
conventional knit structure where each course or fabric formation
cycle is effected during the corresponding formation cycle of the
basic structure composed of threads 1 and 2, thus producing a
compound fabric of which the first series of warp threads, i.e., 1
and 1' of the basic fabric shown in FIG. 1, are intercalated
between the stitches 8 formed by the warp threads 7 of this third
series which form the knit structure, and whose threads 2 forming
the warp floats of the basic fabric, beside intercalating with
threads 1' of the first series as in FIG. 1, intercalate with
stitches 8 of the fabric formed by the third series of threads
7.
Because of the large number of intercalation points between all the
threads in the composite fabric thus obtained, there is no need to
cross the weft threads 2 when linking them to threads 1' so as to
form closed stitches 5 as previously stated. Instead, the link
between the weft threads 2 and their corresponding threads 1' can
be effected using a simple open loop 9, in the manner illustrated
in FIG. 3.
Another possible variation of the fabric, as illustrated in FIG. 4,
can be obtained by combining into one series the first and third
series of warp threads 1-1' and 7, i.e., warp knitting the threads
7 and using these as threads 1, 1', the threads 2 forming the weft
floats 6 being linked with some of the knitted threads 7 by means
of stitches 5 which intercalate with stitches 8 of the knitted
threads 7.
It is easy to understand the very considerable possibilities for
variation of the basic fabric which we have just described and to
this can be added variations arising from the large number of
conventional knit structures which can be combined with the said
basic fabric, from which it can be inferred that the variations
obtainable with different combinations of weaves of one or another
fabric, fibre material, colour, etc., are practically
limitless.
For the manufacture of fabric of the present invention using the
method according to the invention, a chain knitting machine may be
used, in which, in addition to the warp threads which are knitted
normally, there are fed, using corresponding guide bars, the series
of fixed warp threads, and the series of threads forming the weft
floats, which latter threads are supplied to a corresponding number
of additional needles intercalated between the normal needles of
the machine and in alignment with them, but which, by means of a
separation and transfer movement, can change position relative to
said normal machine needles, this transfer being effected after the
guides for the threads to be knitted have deposited those threads
in the normal needles of the machine and the guides for the weft
threads have deposited their threads in the said movable
needles.
The apparatus for making the novel fabric, related to the
invention, comprises means for feeding said first and second series
of inserted longitudinal threads, means for engaging each of the
threads of the second series, separating them from the threads of
the first series, displacing them transversely to a predetermined
extent with respect to the threads of the first series and
reinserting them in a new location between the threads of the first
series, and also means for linking the threads of the second series
with the respective threads of the first series with which they
coincide in their new position.
Said means for feeding the threads of the first series may be
either stationary or movable in cooperation with means for forming
with at least some of the threads of the first series a
conventional chain knitted structure (or knitted fabric warp).
Furthermore, the apparatus may be combined with third feeding means
for feeding a third series of longitudinal threads inserted between
the threads of the first and second series and means for forming
with said threads of the third series a conventional chain knitted
structure, all said means bieng synchronously operated in each
fabric forming cycle.
In a preferred embodiment said third feeding means for feeding a
third series of longitudinal threads and said means for forming
with the threads of the third series a chain knitted structure
consist of at least one guide bar and at least one needle bar of a
conventional chain knitting machine (or warp loom) such as a Ketten
or Raschel type machine, and the apparatus which is the subject of
the invention comprises in said conventional chain knitting machine
(or warp loom) a first complementary guide bar for feeding the
threads of the first series, at least a second complementary guide
bar for feeding the threads of the second series, both first and
second complementary guide bars being adjacent to the guide bars of
the conventional chain knitting machine (or warp loom), and at
least one complementary needle bar adjacent to the conventional
needle bar of the machine, the needles of said complementary needle
bar being adapted to be inserted between the needles of said
conventional needle bar and in alignment with said needles of the
conventional needle bar.
The guide bar or guide bars and the needle bar or needle bars of
the conventional chain knitting machine (or warp loom) are provided
with corresponding driving means to impart to them the necessary
movements to knit a conventional knitted fabric (warp). The
complementary needle bar of the apparatus which is the subject of
the invention is, in turn, provided with driving means in order to
impart it a rising movement, a forward movement by which the
needles of this complementary needle bar become detached from the
needles of the conventional needle bar of the chain knitting
machine (or warp loom), a lateral translatory movement the extent
of which corresponds to the space occupied by a predetermined
number of needles of said conventional needle bar, a backward
movement by which the needles of the complementary needle are again
inserted between the needles of the conventional needle bar to come
into a new position resulting from the lateral displacement
movement of the complementary needle bar, said driving means of the
complementary needle bar being synchronised with the driving means
of the conventional needle bar of the chain knitting machine (or
warp loom) so that the rising and descending movements of the
complementary needle bar are simultaneously effected together with
the rising and descending movements of the conventional needle bar
during the formation of each stitch course or fabric forming
cycle.
The second guide bar of the apparatus, the subject of the
invention, is also provided with driving means which impart to them
an oscillating forward to backwards and lateral movement so that
each one of the guides of this second bar deposits the
corresponding thread into the hook of each one of the needles of
the complementary needle bar at the same time as the conventional
guide bars deposit their threads into the needles of the needle bar
or needle bars of the chain knitting machine (or warp loom).
Lastly, the first guide bar of the apparatus which is the subject
of the invention is, in turn, provided with driving means to impart
the guides of the same with an oscillating forward to backwards and
lateral movement in order to interlace each one of the respective
threads of the first series with the corresponding thread of the
second series after the achievement of the lateral displacement of
the apparatus's complementary needles bar. In these FIGS. 17
denotes the normal needle bar of a Raschel machine having a single
needle bar, the needles 16 of which are adapted to move with a
rising and a descending motion between the knockover blades mounted
in the fixed knockover comb 28 of the machine. This Raschel machine
further comprises a series of sinkers 19 mounted in the
corresponding sinker bar (not shown). The sinkers 19 of this sinker
bar travel back and forth between the needles 16 i.e., above the
knockover blades 18, and the upper part of the machine comprises
two guide bars (10) and (11) which carry two series of guides (12)
and (13), respectively, which hand over the needles (16) the two
warp thread series (14) and (15) with which the Raschel machine
knits a conventional chain knitted structure (or knitted fabric
(warp)).
The apparatus related to the invention comprises a complementary
needle bar (24) located in front of the conventional needle bar
(17) of the Raschel machine, a first additional guide bar (20)
located in front of the guide bar (11) of the Raschel machine and a
second additional guide bar (21) located in front of the first
guide bar (20).
The guide (22) of the first guide bar (20) feed a first series of
fixed threads (1) of the novel fabric, and the guides (23) of the
second guide bar (21) of the apparatus feed a second series of
threads (2) of the novel fabric, and both guide bars (2) and (21)
are provided with actuating means which impart to them a forward
and backward oscillating movement concurrent with the motion of
conventional guide bars (10) and (11) of the Raschel machine as
well as lateral oscillating movements analogous to the oscillating
movements of the conventional guides bars (10) and (11).
The complementary needle bar (24) of the apparatus carries a series
of needles (25) which are shaped in the form of an elbow (elbowed)
so that they can remain inserted between the needles (16) of the
conventional needle bar (17) of the Raschel machine and totally in
line with said needles (16). Said complementary needle bar (24) of
the apparatus is provided with driving means which impart to it a
rising and descending movement complementary with the motion of
conventional needle bar (17) of the Raschel machine's backward and
forward displacement movements in order to separate its needles
(25) from the needles (16) of the conventional needle bar (17),
lateral displacement movements to the one or other side, the extent
of which is variable corresponding to the space occupied by several
of the needles (16) of the conventional needle bar (17), and
forward to backwards movements to reinsert its needles (25) between
the needles (16) of the conventional needle bar (17).
The above-cited driving means of the guide bars (20) and (21) and
of the complementary needle bar (24) of the apparatus are neither
described not illustrated in the drawings because they form no part
of the invention and because they may consist of conventional type
mechanisms such as those used for anlaogous purposes in
conventional knitting machines.
At the start of each one of the forming cycles of the novel fabric
the elements hereinbefore described are located in the positions
illustrated in FIGS. 5 and 10 where the needles (25) of the
complementary needle bar (24) are in line with the needles (16) of
the conventional needle bar (17) and all the needles (25) and (16)
are in a low position between the blades (18) of the knockover comb
(28) of the machine, the meshes of the last stitch course of the
fabric (26) being held in the hooks of the needles (16), while the
ensemble of the guide bars (10), (11), (20) and (21) are located
behind the plane determined by the needles (16) and (25).
In the first fabric formation phase the two needles bars (17) and
(24) simultaneously effect rising movements whereby all the needles
(16) and (25) are raised until they protrude above the ends of the
knockover blades (18) and at the same time the sinkers (19) move
backwards and becoming positioned between the needles in order to
retain the thread and compelling the meshes of the last stitch
course of that fabric to open the latches of the needles (16) and
slip along the stems of these needles (16) from which the fabric
comes to rest suspended, as it is seen in the FIG. 6.
As a next step, while the sinkers (19) move forward thereby
withdrawing from between the needles, the ensemble of the guides
bars (10), (11), (20) and (21) swing forward (see FIG. 7), the
guide bars (10) and (11) effect a lateral oscillation so that their
guides deposit the threads (14) and (15) into the hooks of the
needles (16) of the conventional needle bar (17) in the way used
for forming the chain knitted structure (or knitted fabric (warp)),
and the second guide bar (21) of the apparatus swings laterally in
turn, so that its guides (23) deposit the threads (2) of the second
series of longitudinal threads into the hooks of the needles (25)
of the complementary needle bar (24) as shown in FIGS. 8 and 11. In
this phase the first guide bar (20) also effects a lateral
oscillation in order to interlace the first series of threads (1)
which pass through their guides (22) with the threads (2) which had
been deposited during the foregoing stitch course as will be
explained later on.
In the following phase the guide bars (10), (11), (20) and (21)
swing together backward as shown in FIG. 9, and the complementary
needle bar (24) moves forward (see FIGS. 9 and 12) so that its
needles (25) are separated from the needles (16) of the
conventional needle bar (17) and it is then shifted aside (in FIG.
13 it is shown in a position where it is being shifted towards the
left of the Figure) whereby its needles (25) drag in the respective
threads (2) which in FIGS. 10 and 14 are represented by dotted
lines for the sake of clarity, the extent of this lateral
displacement of the complementary needle bar being such that it
corresponds to the space occupied by several of the needles (16) of
the conventional needle bar (17). In the instance shown this
lateral displacement coincides with the space occupied by three
needles (16) to form a fabric such as shown in the FIG. 3.
The complementary needle bar (24) then moves backwards until its
needles (25) are again inserted between the needles (16) of the
conventional needle bar, but in a new position with respect to
these same needles, i.e., the needle (25) occupies the position
previously occupied by the needle (25'), the needle (25') occupies
the position previously occupied by the needle (25"), and so on.
Lastly, the two needle bars (24) and (17) descend together whereby
all the needles (25) and (16) are again aligned in the low position
between the knockover blades (18), thereby forming the portions of
the threads (2) comprised between the two new successive positions
of the respective needles (25), (25'), (25"), etc., and forming the
floating threads (6) which come to be interlaced at their ends with
the corresponding threads (1) owing to the movement of the guides
bar (20), as mentioned above.
In the fabric forming cycle the complementary needle bar (24) may
shift laterally to the left, or may shift to the right. In the
formation of the fabric shown in the FIG. 3 this displacement will
be made, as is self-explanatory, in a direction opposite to the
foregoing cycle, i.e., towards the right to the same extent
corresponding to the space occupied by three of the needles (16) of
the conventional needle bar (17). In this displacement the hooks of
the needles (25) will slip along the floating threads (6) of the
threads (2) formed in the foregoing cycle, and in this new fabric
forming cycle the floating threads (6) will be interlaced with the
meshes of the new stitch course.
It is obvious that the movements of the needles (25) may be made
when all the needles (25) and (16) are in the low position as well,
instead of making them as described when the needles are in the
raised position. That is, that after all the needles (16) and (25)
have come up and the threads (14) and (15) have been deposited into
the hooks of the needles (16) and the threads (2) have been
deposited into the hooks of the needles (25), as shown in the FIG.
11, all the needles can be caused to descend to the position shown
in FIG. 10 then the complementary needles shown in FIG. 10 of the
complementary needles bar (24) may perform a forward, lateral
displacement and backwards movement in an analogous way to the
manner previously described with reference to FIGS. 12, 13 and 14,
except that the needles (16) and (25) will be in the low position
shown in the FIG. 10.
* * * * *