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Nov. 8, 1949
Y. LATIEULE ETAL
2,437,148
ELECTRIC CIRCULAR LOOM
Filed om. 25, 1945
3 Sheets-Sheet 1
INVENTDHEJ
'
Yves Lotieulo, LouimClocho
3:49:71?! EH21";
ATTORNEY
Nov. 8, 1949
Y. LATIEULE ETAL
2,487,148
ELECTRIC CIRCULAR LOOM
Filed Oct. 25, 1945
5 Sheets-Sheet 2
INVENTORS
Yves Lo?eule, Louis Cloche
and Henri Brlco
g4q4¢<£q<
ATTORNEY
Nov. 8, 1949
Y. LATIEULE EI'AL
2,437,148
ELECTRIC CIRCULAR LOOM
Filed Oct. 25,_ 1945
3 Sheets-Sheet 3
ATTORNEY
Patented Nov.
2,487,148
1949
UNITED STATES PATENT OFFICE
2,487,148
ELECTRIC CIRCULAR LOOM
Yves Latieule, Louis Cloche, and Henri Bricout,
, France, assignors to Comptoir Linier,
Paris, France, a society of France
' Park
Application October 25, 1945, Serial No. 624,424
In France June 13, 1945
4 Claims. (Cl. 139-13)
1
2
The present invention relates to electric cir
cular looms of the kind used for the weaving of
an intermediate shaft I6 and speed reducing gear
transmissions I61 and I6". Sleeve I ll carries two
‘tubular fabrics (bags, tubes, braidings, fringed
pairs of radial arms I‘! adapted respectively to
support two electro-magnets I81 and I8’, for in
stance having two branches, the arrangement be
ing such that the polar ends of said electro-mag
fabrics or large width fabrics) and in which the
control or operation of the essential elements,
such as the loom main shaft, the- shuttle or
nets are located in the annular interval 6 above
shuttles, the heddles, and also the braking or sig
referred to. Electric current is supplied to these
nalling means, is obtained through electric means.
electro-magnets through wires I91 and I92 pass
The object of the present invention is to pro
vide a loom of this type which occupies but little 10 ing through central pillar 3 and leading to ter
minals 201 and 202 provided with brushes cooper
space in the horizontal direction, the automatic
ating with concentric rings 2I1 and 2|’ carried
working of which is continuous and consequently
by sleeve I0 and respectively connected to the
fast and smooth, and which is easy to control.
terminals of said two electro-magnets I81 and Ill’.
Other objects of our invention will result from
the following detailed description of a preferred 16 The warp threads 29 are fed, at the lower part
of frame I, from spools 22 freely engaged on
embodiment thereof with reference to the accom
spindles carried by boards 221 provided at the bot
panying drawings, given merely by way of. ex
tom of frame I. These threads might ‘also be fed
ample, and in which:
from warp beams distributed about this portion
Figs. 1A and 1B are an axial vertical section
20 of the frame.
of a loom according to the present invention;
The warp threads of each row of spools 22 are
Fig. 2 is a longitudinal half-section on the line
driven by means of a driving roller 23, covered
II-II of Fig. 1, some parts being not shown; ~
with rubber, and of a bearing roller 24-, also cov
Fig. 3 is a horizontal section on the line 1II—I]I
ered with rubber and supported by a spindle 241
of P18. 1;
_
.
F18. 4 shows on an enlarged scale and in sec 25 carried by arms 24*‘ rigid with frame I, said spindle
being urged by an adjustable spring 243 (Fig. 3)
tion a detail concerning the construction and
in a direction such that roller 24 is applied, with
control of the heddles;
an adjustable pressure, against driving roller 23,
Fig. 5 shows, on a still larger scale and also
These driving rollers 23 are actuated, by pairs,
in section a portion of the structure of Fig. 4;
from the intermediate shaft I6 which, for this
Fig. 6 is an elevational view on a smaller scale
purpose, extends downwardly. This vertical shaft
showing the arrangement of the loom in a fac
carries a worm 25 which drives, in opposite direc
tory.
tions respectively, two worm wheels mounted re
The frame I of the loom carries a plate 2 at the
spectively on horizontal shafts 2B1 and 2152 which
center of which is provided a pillar 3 supporting a
horizontal platform 4. On the periphery of said 35 actuate, through chain transmissions 211 and 212
or equivalent means, two parallel rollers 23, these
plate 2 is mounted a fixed circular frame 5 the axis
rollers being in turn connected with the two other
of which coincides with that of pillar 3. The
rollers 23 that are perpendicular to them through
periphery of platform 4 and the upper edge of
a bevel gear wheel transmission 281, 28".
frame 5 are close to each other and leave between
All the warp threads are therefore driven simul
them an annular space 6. On either side of this 40
taneously. Spools or bobbins 22 are easily acces
annular space are provided; on the above men
tioned ?xed parts 4 and 5, annular elements ‘I and
3 including roller tracks for shuttles 91 and 92.
These annular elements ‘I and 8 are made of a
non-magnetic metal and preferably constituted
by the assembly of a plurality of portions, so as
to be easily taken to pieces and replaced in case of
wear and tear or of accident. In these annular
elements ‘I and 8 are provided as many radial slots
7° and 8°, in register with one another, as there
are warp threads.
On fixed pillar 3 is mounted a sleeve I0 which
bears thereon through a double thrust bearing I I
and two roller bearings I2 and I3. This sleeve or
sible which facilitates their feed, since their posi
tive unwinding permits of replacing them without
having to stop the loom. As the bobbin boards or
equivalent means are located close to the lateral
walls of the frame, the space occupied by the
whole in the horizontal direction is reduced to a
minimum.
Upon leaving driving rollers 23, the warp
threads 29 move upwardly along frame I, being
guided by flexible wound metallic wires 30 pro
vided at suitable points of the 100m. When the
warp threads come to the level of the shuttles 91
and 9’, they are caused to converge toward the
shaft i0 is driven by an electric motor 14 through 55 axis of the loom, forming two frusto-conical
2,487,148
3
4
metal, for instance aluminium, an aluminium
alloy or a moulded material, and it is provided.
sheets having their apices on said axis and the
respective elements 291 and 292 of which are en
gaged in vertical heddles moving with a recipro
cating motion in the usual way.
at each end thereof, with a magnetic mass or
armature 581, 58*‘, intended to cooperate with the
corresponding pole of the electro-magnet includ
The warp threads, after passing through said
heddles, pass through the slots of a circular guid
ing comb 3| ?xed to the upper edge of frame 5
and electrically insulated from the remainder
ing two branches l8‘L and It!2 for closing the mag
netic circuit at the respective ends of the shut
tle, so as to ensure a stable running thereof.
The pair of wheels 56 and 51 run respectively
of the loom.
The heddles 321 and 323 are distributed about 10 along annular tracks ‘I1 and 81 provided on an
nular elements ‘I and 8 disposed on either side
circular frame 5 in two rows. The ends of the
of the interval 6 in which the polar parts of elec
metallic wires which constitute each of these
tro-magnets I81 and I82 are moving. In order
heddles are ?xed to small plates 33 slightly bent
to compensate for the action of the centrifugal
into arcuate shape. These plates are themselves
supported (see Figs. 1 and 4) by pairs of cables 15 force, each shuttle is provided with two rollers
591 and 592, substantially parallel to the lower
341 and 342 through which the corresponding
sheet of threads 29*, which run along the inner
heddles are interconnected. These cables pass
face of annular element 1, which face is substan
respectively about double pulleys 351 and 352 the
tially perpendicular to said sheet.
diameter of which determines the interval be
The pirn may be made in any suitable man
tween corresponding heddles. These pulleys are 20
ner, for instance as usual. However, it is ad
respectively mounted on spindles 361 and 362
Vantageous to make use of the following arrange
freely engaged in forked supports 311 and 3‘!2
ment, which constitutes one of the features of our
?xed to frame I. Advantageously adjustable
invention:
springs 38 are interposed between the upper sup
The shuttle is provided with a lid 60 so as
25
ports 311 and the frame.
wholly to surround the spool housed therein, the
The two lower cables 342 of each pair of hed
dles are connected together. at a suitable point,
by a transverse shaft 39 (Figs. 4 and 5), each
cable being, for instance, engaged in a radial slot
40 provided in the correspondingr end of said
shaft and driven into a central notch 4! provided
at the bottom of said slot by the point of a screw
42 screwed in the sides of said slot.
On shaft 39 is freely engaged a sleeve 43 car
ried by the end of a lever 44 pivoted about a
horizontal axis 45 carried by a bearing 46 pro
vided on plate 2 so that the plane in which lever
44 is movable is a vertical and radial plane with
respect to the loom. Each lever 44 passes through
an aperture 41 provided in circular frame 5.
The oscillating movement of each lever 44 is
obtained through the intermediate of an annu
lar cam 48 made rigid with sleeve l0‘ and the
shape of which is that of an elongated sinusoid
(as shown in dotted lines in Fig. 1). The upper
and lower faces of this cam serve respectively
to the guiding of two rollers 491 and 493 carried
by a slide piece 50, guided by a vertical rod 5|
and to which is pivotally connected the inner end
52 of lever 44 through the intermediate of a spin
dle 55 mounted in a forked support 53. The lat
ter is rigid with a plunger piston 54 freely en
gaged in the tubular end 52 of lever 44.
Through the cooperation of cam 48 with levers
44, we successively obtain the opening in one
direction of warp thread sheets 291 and 292, their
displacements in opposite directions and their
assembly of the two above mentioned parts, to
wit the shuttle and its lid, being in the form of
a portion of a tore.
30
The shuttles are driven, in the direction of the
arrow (Fig. 2) by the electro-magnets located
below the lower sheet 292 of warp threads, and
the weft thread is automatically applied against
the upper and lower sheets of warp threads along
the circular line toward which both of these
sheets converge. In order to guide the fabric
as it is being formed, we provide an external
bevelled annular member 6| and an inner cylin
drical part 62, mounted concentrically to each
other on ?xed parts of frame I, with an interval
of some millimeters provided between BI and 62.
The fabric is received at the top of the loom,
the tube 63 formed by said fabric being pulled up
wardly by passage between two cylinders 64 and
45 65, covered with rubber, and one of which, 64,
is driven from the bottom of the machine through "
a substantially vertical shaft 66 actuated
through conical gears 61 by the driving means
281 of two driving rollers 23 (Fig. 3). Shaft 66
50 drives cylinder 64 through suitable lbevel gears.
An endless conveyor belt 69 then brings the fabric
to the place where it is to be utilized.
In order to permit of stopping the loom inde
pendently of the feed of its driving motor l4, we
55 provide on a rotary piece of said loom, prefer
ably intermediate shaft I6, an electro-magnetic
brake ‘I0 (Fig. 1) which tends to be applied by
the action of a spring and released by an elec
opening in the opposite direction, these move
tro-magnet ‘H fed by means of wires 12 branched
ments taking place successively in a continuous
manner in accordance with the circular move 60 on those 13 which lead to motor i 4. Advanta
geousiy, the loom is provided with a lubricating
ment of the shuttles. For this purpose, we pro
conduit 16 and an oil pump (not shown) which
vide, about the axis of the loom, a plurality of
levers 44 corresponding respectively to the groups
of pairs of heddles 321 and 322 disposed along
a circumference concentric with the axis of the 65
permit simultaneous lubrication of all the parts
to be lubricated.
’
Fig. 6 shows, in diagrammuatic vertical section,
a three-storied factory which may include several
looms as above described, disposed side by side
In the example that is considered, we make
(the drawing shows only one of these looms).
use of two shuttles 91 and 92. We might of course
The bottom story, where are located the bobbins,
make use of any number of shuttles provided that
their combination ensures a static and dynamic 70 such as 22, or the warp beams, is fed with warp
threads through suitable means, such as a car
balancing of the loom.
riage 14. It corresponds to the lowest portion A
Each shuttle is in the form of a carriage sup
ported vertically by two pairs of wheels 56 and
of the loom. The intermediate story, which con
loom,
51 provided with rubber tires. The body of the
tains the main part B of the loom, is provided
shuttle is made of a light and non-magnetic 75 with means for feeding spools for the shuttles,
2,487, 148
6
5
for instance a carriage 1:. The fabric that has
been manufactured is received at C, at the upper
story and removed by conveyor 69 to the places
where it is to be utilized, after being out either
transversely or longitudinally, according to the
needs.
The advantages of the loom according to the
invention, as above described, are chie?y the fol
3. An electric circular loom which comprises,
in combination, a frame having a vertical axis of
symmetry, means forming two superposed sheets
of ‘warp threads extending radially with respect
to said axis to constitute a horizontal shed, a
circular ‘horizontal track disposed coaxially with
said frame between said two sheets of warp
threads, a shuttle adapted to run along said track,
means, including at least one vertical electro
lowing:
The space occupied in the longitudinal direc 10 magnet running along a circular path coaxial
with said track and located under the lower sheet
tion is relatively small.
of warp threads, for driving said shuttle along
The loom works quickly and smoothly and the
said track, a circular track rigid with the ?rst
shuttle or shuttles move at high speed and in a
mentioned track and substantially perpendicular
stable manner between the warp threads.
The weft spools can easily be inserted in the 15 to the lower sheet of warp threads and a wheel
shuttles, for replacement.
As the shuttles are driven from below the lower '
carried by said shuttle adapted to run along said
second mentioned track for opposing the effects
of the centrifugal force on said shuttle.
sheet of warp threads, the two sheets of warp
4. An electric circular loom which comprises,
threads can be moved away from each other to
a great distance, since the driving electro-mag 20 in combination, a frame having a vertical axis
of symmetry, means forming two superposed
nets do not interfere with the lower sheet of warp
sheets of warp threads extending radially with
threads. Each shuttle can therefore be made of
respect to said axis to constitute a horizontal
larger size and need not be replaced as often as
shed, a circular horizontal track disposed co
with prior machines.
_
As the warp bobbins 22 are easily accessible, 25 axially with said frame between said two' sheets
of warp threads, a shuttle adapted to run along
their replacement can be performed without stop
said track, at least one vertical electro-m'agnet
ping the loom, which can therefore work in a
adapted to cooperate with said shuttle, means
practically continuous manner.
for guiding said electro-magnet along a circular
While we have, in the above description, dis
closed what we deem to be practical and elli 30 path extending under the lower sheet of warp
threads directly under said track, means for
cient embodiments of the present invention, it
moving said electro-magnet along said circular
should be well understood that we do not wish to
path, a circular track rigid with the ?rst men
be limited thereto as there might be changes
tioned track and substantially perpendicular to
made in the arrangement, disposition and form
of the parts without departing from the principle ; the lower sheet of warp threads and a wheel car
ried by said shuttle adapted to run along said
of the present invention as comprehended with
second mentioned track for opposing the effects
in the scope of the appended claims.
What we claim is:
1. An electric circular loom which comprises,
in combination, means for forming two super
posed sheets of warp threads extending radially
of the centrifugal force on said shuttle.
YVES LATIEULE.
LOUIS CLOCHE.
HENRI BRICOUT.
from a vertical axis to constitute a horizontal
shed, a shuttle, means for guiding said shuttle
along a circular path located between said sheets
and having its center on said axis, and means,
including at least one vertical electro-magnet
running along a circular path coaxial with said
first mentioned circular path and located under
the lower sheet of warp threads, for driving said
shuttle along its path of travel.
2. An electric circular loom which comprises,
in combination, means for forming two super
posed sheets of warp threads extending radially
from a vertical axis to constitute a horizontal
.
shed, a shuttle, means for guiding said shuttle I
along a circular path located between said sheets
and having its center on said axis, at least one
vertical electro-magnet adapted to cooperate with
REFERENCES CITED
The following references are of record in the
?le of this patent:
UNITED STATES PATENTS
Number
361,994
365,216
503,544
514,089
608,676
Name
Date
De Laski _________ __ Apr. 26,
Winckler _______ __ June 21,
De Laski _________ __ Aug. 15,
Lombard _________ __ Feb. 6,
Herold ___________ .._ Aug. 9,
,
1887
1887
1893
1894
1898
629,251
Herold ___..________ July 18, 1899
951,449
1,139,073
Petersen _________ __ Mar. 8, 1910
Rhomoser ________ _.._ May 11, 1915
1,720,151
Sery ____-....__.._____ July 9, 1929
2,065,137
2,248,281
Jabouley _________ __ Dec. 22, 1936
Pelce _____________ _.. July 8, 1941
said shuttle, means for guiding said electro-mag
net along a circular path extending under the 60
lower sheet of warp threads ‘directly under said
Number
first mentioned circular path, and means for
FOREIGN PATENTS
Country
moving said electro-magnet along said second
487,202
Great. Britain ____ __ June 16, 1938
mentioned circular path.
574,799
Germany ____.---__ Apr. 20, 1933
’
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