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Патент USA US2072160

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March 2, 1937.
-
R. DEwAs
2,072,160
WEAVING LOOM FOR CONTINUOUS WEAVING IN WHICH THE
,
WEFT IS INSERTED BY MEANS OF PIRNLESS SHUTTLES
Filed June 17, 1933
- 3 Sheets-Sheet 'l
Il/r1”.
9IIIII
ATTORNEYS
,
March 2, 1937.
R DEWAS
2,072,160 ,.
WEAVING LOOM FOR CONi‘INUOUS W'EAVING IN WHICH THE
WEFT IS INSERTED BY MEANS OF‘ PIRNLESS SHUTTLES
Filed June 17, 1933
3 Sheets-Sheet 2
15
I N VENTO R
R0 wwo/vp ?aws
ATTORNEKS
March 2, 1937.
'
R DEwAs
2,072,160
WEAVING LOOM FOR CONTINUOUS WEAVING IN WHICH THE
WEFT IS INSERTED BY MEANS OF PIRNLESS SHUTTLES
Filed June 17, 1933 '
3 Sheets-Sheet 3
' ‘7r
\1,
\3, INVENTOR
BY Farm/v0 ?fms
m4
ATTORNEYS
Patented Mar. ‘19361.v
v. 2,012,160 '
TMUNITTED. sTATJ'Es PATENT OFFICE
,
’
2,072,160
.WEAVING LOOM Foa CONTINUOUS WEAV
JNG IN WHICH THE WEFT IS INSERTED
BY MEANS
Raymond
OF Dewas,
nameless
Amlens,
SHUTTLES‘
France
1 " Application June 17, 1933,‘ ‘Serial No. 676,251
In France June _23,, 1932
'
in, Claims. (c1. 139-125‘)
-
I The present invention relates to improvements j, shed by the inserter entering the saidlshed, so
to the‘ invention described in my pending U. 3. as to form the fast selvedge, and thatpthe portion
application ?led May 31, ,1933, Ser. No. :673,672, Y of weft thread which lies between the inserter
for “improvements in Weaving looms ‘for con-r and the bobbin, from which the weft thread can
run off or unwind, is passed into the same shed 5
5 means
tinuousof
weaving
pirniessin'which‘the
shuttles”; _ weft is inserted
_
‘
by_
as a ‘single thread and is released from the in- -
v
The improvements which arethe'object of the
serter when it comes out of the. shed.
.
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i
This process, when a fast selvedge on one side
present invention‘ have for their aim the possi
bility of allowing the weft to‘ pass'altemately ‘ of the fabric is not required, is characterized by r
10 from either side of the loom by means of weft the feature that the weft thread,‘ stretched iri 10
threads fed from two large. bobbins of which one ‘ front of the opening of the shed, between the
selvedge and the bobbin, is seized by the in-_
is‘arranged on eachside of Ithe'selvedges‘. " a
As in my above-mentioned application, these eerter, at its entry into the shed, and is'cut by
improvements enable looms which are, provided a’cutting device, which is. in this‘ case not' in
15 with them to ‘work at a very high speed ‘and. in‘ \ tegral with the inserter but is arranged exter- 15",
any position, horizontal, oblique or vertical,‘ in, nally and in front of the opening‘of the shed
that the insertion, member with equal facilityv between the point of the fell of the cloth and the
path of the inserter,'in such a manner that the
can be thrown across‘the shed horizontally, ob
, liquely or vertically.
-.
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J
.
' portion of ‘weft thread which lies betweenthe
20 A The improvements also enable the shuttle to ‘inserter and the point of the fell of the cloth? 20
' be thrown alternately from each sidevv of the loom, with the selv‘edge remains free outside ofthis
\ of the selvedges and provided with wdiscs of the
point. Furthermore, the portion of weft thread
which lies between the ‘inserter andthe bobbin,
type described in the-above mentioned applica
from which the weft thread can run off or ‘?un
eitherby throwing devices arranged at each side
tion, or by means of picking sticksor rods of _, winditself, is placed’inside the‘same shed as-a '25
, the already known type, or ?nally, byimeans of
single .thread and released; from .- the inserter
‘electro-magnets in which the direction of. the ' when it comes, out of the shed.
current would be alternately reversed, etcf:v
.
In certain cases, in ‘order to insert 'in one of ' ~
_
Further, the improvements make it possible-by 'the selvedges one end ‘of thread only out of two,‘ I
T30 using the members describeddn the above-men there may be employed‘an‘inserter with a cutting, 30
_ tioned application but disposing‘ them symmetri
device "and a weft inserter without a cutting de-f
cally on each side, of‘ the selvedges, to'present' 5 vice,
alternately.
,
_
'
the weft and’to release it, as well as to cut the _ .severs
- If‘a cutting‘
the. thread
bladecoming
is carried
from
by the
they inserter,
preceding
it" '
weft vdth or without turning-in the end of the
preceding shoot whereby the selvedges may or
may not be formed, as the .case may be.
r
'
Finally, these improvements can be employed
‘on looms having shuttle boxes which form part 7
of the sley, or which are rigidly ?xed, so that
_
pickand going up to the bobbin, so as to realize 35
a fast selvedge, without utilizing any-actuated de- Y '
"vice.
,
As a-iweft inserter is ‘shot into the shed, thev
weft stretched on its path is.caught into the
two.prongs of the rider-and held between the 40
~10 the reed and the sley, which may or may'n'ot in
clude a shuttle race~ are the only movable parts. I springy prongs of the amp. As the inserter is
, In'accordance with the invention described in
,the above entitled patent application, the process
continuing its stroke along into the shed, “the _
weft, stretched between the eyelet and the fell
of insertion of‘th'e weft in the shed, in a sin » of the cloth, isbeing bent into the entrance of
- gle weft thread coming from a stationary bob= the shed.
515
bin, with a fast'selvedge is’ aracterized by the
feature that the weft thread stretched in front
of and across the opening of the shed, between
‘the selvedge and the ,weft bobbin, and is seized
50 by the weft inserter a’?fter this inserter has been
driven and at the time of its entry into the .
Under the tension?of the thread thus bent,’ as
the inserter progresses, the said thread slides
between the springy branches of ‘the clamp“till\\
it comes into contact upon‘ the edge of the-cuttingblade, where it is cut.v
_
_
t
‘
The‘thus severed thread, allows the inserter
shed, and is cut by a cutting device which is ' to continue its stroke. The part of said ~se‘v
'_ integral withthe' inserter,‘in such a manner that ‘ered thread, which is still held‘in vthe clamp and
, " the portion of weft ‘thread which lies between
, goes up to the bobbin, is carried along the shed
_
so,
_
' 55 the'inserter andthe selvedge islfolded into the to‘constitute the .next pick,‘ and the part of same its
L
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2
2,072,160 1
said severed thread which goes up to the fell of
several arrangements- are described hereinafter
the cloth,_remains in-turned into the entrance
and shown diagrammatically‘ in the accomélj
panying drawings in which:
of the shed, to form the ‘fast selvedge.
I - .
It is understood that, the passing of the weft
Figure 1 is a side elevation of the‘weft in
‘ alternately from each side ‘of the loom, renders
serting member;
- unnecessary the use of the unidirectional closed
-,
i
v
a
5
Figure 2 is- a plan view of ‘the same,,weft in-\
circuit employed for the passing of the weft
serting member showing the surface which slides‘
from one side only of the loom, since both the
ends of the conduit which are 'adjacent'to each
10 selvedge may be used as shuttle boxes; the de-
along the reed and also‘ showing the gripping
clamp which is >ca1‘ried by the member, and
which is adapted to grip' the weft thread ‘at both 10
‘vice provided with discs, whichIthrowIthe shut-
ends; '
tle across the shed and back in the cdnduit for
_~
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i
.
. I,
'
Figure 3 is a plan view of the same weft in
completing the circuit, also can be used equally sertixg member ‘showing the surface which
Well for thi‘bwing the shoot alternately, it being 'faces the fell of the cloth, and illustrating the
15 understood that in this case ‘the discs of the
two slots and the central groove with which the 15
above mentioned device are operated in such a ' member is provided;
‘manner that they will rotate in the opposite direction.
~
1
'I.-
'
_
~
serting
These improvements, which are the object Of
I
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v
.a
'
member;
‘
_
,
I
Figure 5.15 a, fragmentary plan view of the I
20 the present ‘invention, relate, among others, to
the following elements:
)
Figure 4 is an end view of the sa?ie weft in
warp, of the sley, of the_end of the conduit 20
I
which 'constitutesthe shuttle box, and of the
1- The member for inserting the Weft, 0r pirn- . movable members which present and release the
' 165$ Shuttle, which is 50 arranged that it can gripv I weft, the presenting member _being in position
the weft alternately on each side of the loom, cut 1 Lfor gripping the weft, the weft inserting member
25 it and release it-
' ,_
,
\ ' A
being shown at its entry into the shed, the throw- 25
2.‘ The members which present,’ release and
sever the weft.
‘
' v
in'g device with discs or the likeInot being shown
v
in this ?gure;
As regards the member'for. inserting the weft
I
or pirnless shuttle, which, according to the pres-
'
I,
s‘
.
(
Figure 7; is a plan view similar to Figure 5 30
and showing the insertion member continuing its
ilar to the insertion member described in the,
coursethrough'the shed; '
I.
J '
a
above mentioned application and consists of a
Figure 8 is‘a plan view similar to Figure 5,
rectilinear piece, preferably of metal, having‘ an
‘showing the insertion member at the end of its
#15 essentially, triangular or trapezoidal cross sec;
tion and‘ which is ‘split vertically in (its; middle
~ ends, as will be explained hereinafter. '
the other selvedge, the'movable, members for ~
presenting and releasing the/weft aving been so
displaced that the releasingblade is in~juxtaposi
tion with the'central slot and the clamp, while
the presenting member is out of the path‘of the.~ :10
said insertion member for transporting the
weft;
. ’ _As regards the members for presenting and
_
return journey after having been thrown iron-1,35.
plane at each end, for a certain length; while
the central part which remains solid <i'_s pro1, vided on the side which faces the reed with a
I40 central groove in which is‘arranged a resilient
clampwhich can grip the weft thread from both‘ Y
'
'I
viewed from the end of the warp;
3Q‘ ent invention, is adapted to insert the weft al- ternately from each side of the loom, this is 'sim-'
n
’
Figure 6 is a corresponding side elevation
.
'
I
'
Figure 9 is a corresponding side elevation.
releasing the‘\weft, according to the present in; ' Iyiewed from the end of the warp;
’
'
'.
45 vention, they consist, as in the above mentioned
Figures 10 and’ 11 are similar views to Figures‘ 45
application, of an eyelet through, which passes,’q 5 and 6,’ showing the ‘arrangement of the cutting
the weft thread coming from the bobbin and of ‘member ?xed adjacent to a selvedge, when the
a blade for pushing apart the prongs of the cutting member is arranged independently of the
clamps, an eyelet‘and'a blade being arranged
' insertion‘ member;
t
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H
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a
,
on each side of the selvedges.
The said members (‘are mounted on movable
Figure 12 showsxini elevation an‘ alternative 50
design for the member for inserting the end of ,
supports adapted alternately-to move the eyelet
into position for passing the weft thread on to
opcrate with fixed presenting and relveasing mem
theshuttle at the moment when the said shut-
bersfor the weft; -
551118 enters the shed to pass the end of the thread
through it, and rto move the blade into'position
for forcing apartthe prongsof the resilient clamp
I oi.’ the shuttle when thesaid shuttle, thrown from-
- the opposite selvedge, has ‘traversed the shed and
60 carried the end of the weft through it. '
the weft, when this memberis int‘ihded to_ co
'
"
v
-
,
Figure 13 is a plan view "oi the'weft inserting 55
member, sho
g-the surface which slides along'i? ’
the reed; an
-
'i
r
'
'
”
~
Figure 1411s a plan view of - the weft inserting’
member shown in Fig. 13 and shows the surface?
I
which faces the fell d!v the cloth;_
I
"
,60
As cbncems the cutting members, these, are‘ ‘ FigureIl5 is an end view, looking‘ at the left 1
the same as mentioned in the above. mentioned Ihand' end of the_inserting member of‘ Figure 13/, \
application and consist‘ of cutting blades either
‘ arranged in theshuttle itself beneath vthe level
65 of the clamp, there being one blade for each
direction
enable selvedges
of the motion
to be of
formed
the shuttle,
by bending
in‘ order
back
to,
i the ends of the preceding-shoots; or fixed on‘
theloom at each side of the .selvedges, if the
Figure 16 is'the same’view from the‘ right hand
end; ,
‘I
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‘
I
“
I,
'
Figure 1'7'v shows diagrammatically a resilient- 65
clamp
Figure
carried'by
18 is a sectionjalong
the weft inserting
vthe line
member;
lie-l8 of
‘f
Fig. 17. -
" '
I
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»
a’
w
I
;
Figuresl to4-, show the inserting member I for
,
70 ends of the vweilft are to remain outside ‘of the . the 'weft,_lwhich consists of arectilinear piece of to
woven-material and at a later stage be sheared metal, preferably having a triangular. or‘ trape
zoidal‘cros's section, (Fig. 4) vand provided with )
g
In order‘to explain the present invention more ‘C vertical slots _2' and 3 (Figs; 2 ‘and 3),‘ ‘while the ‘
fully, and by way of anexample' of the applies- middleipart, which‘ is' solid is provided,‘ upon the ' '
"
7'5; tioniof the improvements which are its object,‘ -, face which slides on\ the reed, with a central 7;.
,
4
(n
K
9 2,072,160"
f
.
f
;
"3
brought inn’) juxtaposition with_pne of- the slots
groove 4 which connects the two central opposite
2, or ~3 ‘of the weft inserting member‘ I; ~the
In this groove or slot I the clamp for holding .blade 9 penetrates between the prongs 5 ore-the‘
the. weft thread is arrangedfsaid clamp being clamp and moves them aside thus ‘releasing the
5 shown separately in Figs. '17 and 18, and com: end of the shoot which has been passed-across
prising two straight ?exible steel prongs 5 ar .the shed, and which comes outthmugh the
- _ ranged parallelly and in elastic contact, the one opposite slot whilst the ‘weft inserting member
- ‘ .
, f
_.
against the other, in the centrexof the groove 4, I enters its box.
slots2and3._
I'-,
‘
In the >position>shown in Fig. 8, the‘ weft passes
so as not to come into contact with the walls
10 of thesaid groove, the ends 5a of (these prongs
above the weft inserter, as ‘it is raised by the
eyelet 8 off the path of the inserter, as in Fig. 9,
.being bent back towards the said walls in which
they are embedded so as to maintain “the clamp so as to permit said inserter to pass-onto! the
in position, ‘so that the weft thread or the releas . shed) into the conduit- 13, the releasing blade 9
ing-v blade ‘which is,arranged on either side of ‘ having been brought in line with the groove 4
=
_
'
15 the-selvedge can enter and pass between the ‘of the inserter' I (Fig. -9).
When‘v the i'nserter works on the reverse-jdirec- .
prongs, 5 of the clamp either from one end or '
7' , from the other, the elasticity of ‘the contact be- ,
tion; it comes out of the box l3, and‘icatches the
thread which is stretched between thelpoint of,
tween the two prongs~5 being increased, by means
.
the fell of the cloth II and the bobbin l5 through
Below this clamp, the‘v ends of which may be the eyelet 8 which has been lowered, as shown '
6.
extended into the slots 2 and 3, a cutting blade?
‘i (Fig. *3) is arranged'in the bpttom of each of,
Any means for actuating the movable support
" Ill sliding in one of the caps of the reed 12, may
According to Figures '5 to 9, which have refer-a be employed.
,
1
.
A device of asomewhat di?erent construction
25~~en0e to the members which present, release and
V of auxiliary springs 6.
inFi/gsjand
'v
the
said 'slots.
‘
,
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cut’the, weft, these members comprise an eyelet ,is illustratedmin Figures .10 and 11 of the draw- _
8 and a ?exible blade 9, (Figs. 6 and 9), which’ ings. In accordance with this‘jmodi?cation, the
are always placed together in groups and in such inserting member i is not provided with cutting
manner that one- such group is arranged near . blades ‘i. Instead of theseblades, a cutting blade
i8 is operatively arranged on a support, adjacent
30‘ each selvedgeof the wovenmaterial.
.
,.
'
Each group of members 8 and 9 is mounted
each, side of the selvedges (Figures 10 and 1,1)
and cuts the weft ‘as described in the above men!
on a movablesupport l0 which (slides, for exam
7
ple, in one of the caps ii of the reed\l2 and is . tioned patent‘application Ser; No. 673,672.
_It is understood thatwithout departing from
controlled byga cam or lever not shown in‘the
the spirit ‘of .the present invention, changes, modi-rl
35 drawings and v‘operated in conjunction‘ with the
movement of the reed or' with the rotating mem
?cations or improvements canbe made and: in
the same way equivalent means can beapplied.
' Thus, for example, the single clamp 5of the
bers of the loom in such a way that the ,desired
displacement ofzthe support is obtained (and ac
Y
cordingly the eyelet 8 or the blade 8, are located
in suitable position, in accordance either with
the entry of the inserting member I into the shed
weft inserting member i, could be replaced by
two clamps, one being arranged in the extension‘
- of! the other.
~ or with its exit from it. 'In,cert‘ain cases each
.
~
In the same way, for example, and
shown,
‘of the) members 8 and 9 may be mounted on an
in Figures 12 to 16, the weft inserting member I’
independent ‘movable supports
could have the'same shapeand cross section as _
_
7
.
/.
“the member shown in ‘Figures 1 to 4, with the
At the moment when the weft inserting mem
ber l is, thrown into the shed, Figs. 5 and 6, them diiierence that ‘its ,two end slots 2' and 3?; are
weft inserting memberl is situated at the end oblique in relation to the height of the member
oi’, the conduit l3. (Figs. 5, 7, and 8) which forms and issue on the side which slides along the reed
'_
the shuttle box-—:(the» throwing member with I i2 (Figs; 6, 9, and’ 1'1)..to the right and to the
50 discs or the like, is not‘ shown in the drawings), left oflvthe centre line, there being- the further 50
the support I!) is in the position shown in ‘Fig. di?erence that each of these slots communicates
6, said'support moving the blade 9 into an inop
with a groove 4' or it" respectively, ‘ anged also
erative position and the eyelet 8 into a position to the right and to the left- respe ively of the
where it presents the thread which passes from
point of the fell of the cloth M to the bobbin
55 the
t5; the thread passes'into one of the slots 2 or, 3
of the weft inserting member _|,‘and is held be
tween the prongs 5 of the clamp where the thread
‘ remains fixed until itv arrives at the other selvedge.
~60 By the operation of the adjacent cutting blade
centre line, the said slots 2' and 3" issuing, on
the side towards the fell ofithe cloth, on or very
55"
near‘to theLcentraLplane of the weft inserting?’ ~
~member i'.v
>
Two clamps 5' and 5" formed in th'e'same way ‘
as the clamp 5 are arranged in these slots, ~so
60
as to allow the releasing- blade’ 9 to pass
‘I, which is arranged in the slot 2'or the slot 3 ‘ With this modi?ed type of inserting member i- ,
of the weft inserting member I, the weft is then 4 the eyelets 8 and the blades 9 for presentingand
cutwhile the end, of‘th'e preceding shoot is bent releasing the weft‘are ?xed and arranged on ?xed .
.back towards the inside of the shed for the pu'r vsupports on each side of the selvedges, in such a
'way'that, as regards thegroup relating to the
poseof forming a selvedge. ' ‘
>
»
"
7 Fig. 7 shows the weft inserting member [I while right selvedge, th'e eyelet ‘is in line with the slot
2' and the groove '4', whilst the blade is in line‘
it is passing through the shed.
a
- I
7
‘ ' When the shoot has almost passed through, the‘
with the slot 3' and the; groove/4C", sathat it is_
weft inserting‘ member i has reached the end of ~ able to separate the prongs of the clamp 5" when
70 its travel (Figures 8 and 9) the support llliFig. ,
9} having, been displaced in such a way as to
place the eyelet‘8 outside the path of movement
theweft finserting member which is thrown from
the left selvedge, leaves the right selvedge to re
enter its box. <Theweft thread; which is not able
* or the 'member I, thus moving aside the weft‘, to penetrate the groove 4', slides ‘underneath the T~
1
thread between'the point of the'fell of. the cloth weft inserter while thellatter -is ice-entering its. 75
,5 andrthe bobbin, the blade a'thereby having been -, box. Then'the weft inserter. is drawn i’rom‘right
‘ 2,072,160
~ to‘ left; the thread which is lightly stretched is with each other, the ends ‘of said prongs being
able to penetrate the slot. 2' in the course of this ' bent toward the wallt of said groove to maintain
movement,_reaching the clamp 5', and is cut by
the cutting blade-
5 ‘
"
_
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H
1
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As regards the group relating to the left sel
vedge, the eyelet is arranged in line with the
slot 3’ and thegroove 4", whilst the blade is in
' ‘line with’the slot 2’ and the groove 4' so that
, it is able to separate the prongs of "the clamp 5'
10 when the weft inserting member I’ which’ is
‘thrown from the right selvedge, leaves the left
said clamp in position in the middle of said groove‘,
and a pair of cutting blades carried by said weft ,
. inserter, each blade being situated at the bottom 5
of each slot between the clamp and the face of the
inserter facing the fell of, the cloth. .
5. In shuttleless looms for continuously feeding
the weft shots‘, incombination with a shed, and ‘
a pair of bobbins placed ,on both ‘sides of the 10
1oom,_the weft threads fed from said bobbins
being stretched in front of both ends of the shed
selvedge to re-enter its box. The weft thread,
- which is not able to penetrate the groove 4" slides 4 from the selvedges of the last pick at=->the fell'cf
the cloth to said bobbins; a device for insertingv
above the weft inserter while the “latter is re
.15 entering its box. Then the weft inserter } is singlewefts and weaving from both sides of the i5
thrown "from left to rightyth'e, thread which is v loom, said device, comprising a ‘weft inserter for
lightly stretched, is able to penetrate the slot
3' in‘ the course of ‘this movement, reaching the
clamp 5", and is cut by the cutting blade. '
20
alternately gripping said'threads, said weft,v in
serter having a metal body of a substantially an
gular cross-section, said body beingsplit verti
cally atits two ends, whereby a double pronged 20
1. ‘In, shuttlelesslooms for continuously feeding .lrider having two slots is formed, the middleL'po'r-r
the weft shots,v in combinationjwith a shed, and‘ a tion ofsaid body having a longitudinal central
‘I claim:
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pair of bobbins placed on both sides of the loom, _ groove, said groove being in the longitudinal cen'
the weft threads fed, from said bobbins being ' tral plane passing through said slots, a clamp
25 stretched in frontvof .both ends of the shedlfrom ' ‘carried by saidweft inserter and situated in said 25
the selvedges of the last pick at the fell of ., the ' groove,~said clamp‘ comprising two parallel resil
ient prongs V'whichare in contact with each other, ‘
i X cloth to said bobbins: a device for inserting single
‘ wefts and weaving from both sides of the loom,
the ends ofv said prongs being bent toward the
- ‘said device comprising a weft inserter for alter
walls of said groove to maintain saidclamp in ' '
30‘~ n‘ately gripping said threads, cutting means car
position in the middle ‘of said groove," cutting 30
'
ried by said weft inserter, that part of each weft ‘ means carried by said weft, inserter, that part of i '
thread which alternately stands‘ between the'weft e ch weft thread which alternately stands 56-,
inserter and the selvedge being bent into the shed , ,een the weft inserter and the selvedge being
_
by the weft inserter while said weft inserter’ enters , bent into the shed by the weft inserter while said
I. 35 the shed, the part of the‘weft situated between weft inserter enters the shed, the part of the weft 35 I
its bobbin and the weft inserter being passed. situated between its bobbin and the weft inserter
by said weft inserter through said shed as a single ' ' being'passed by said, weft inserter through said
weft, and means for releasing the last-mentioned .- shed as a single weft, and a pair’ of movable weft
part of the weft from said weft inserter after it ‘releasing blades, each blade being adaptedto pass
through a separate slot ‘and penetrate between,40
2. In a weft inserting device, a weft inserter, v‘thefresilient prongs of the clamp as the weft in
having a. metal body of a substantially angular serter comes out of the shed to releasethe last
‘ l-‘cross-section, said-body being split vertically at mentioned part of the weft from said ‘weft in
40. has passedthrough the shed.
" its two ends, whereby 'a‘ double pronged rider hav- _ serter after it has passed through the shed. is
45 ing two slots is: formed, and means‘forming a ‘I
r
6. In shuttleless looms; for continuously feeding 45
~" groove {in said body, said groove extending'longi _ the'weft shots, in combination with a shed, and
tudinally between and connecting the saidslots, a- pair of bobbins ‘placed on‘ both sides of the:
whereby the weft ,thread why pass through‘ said loom,‘ the weft threads fed from ‘said bobbins
being stretched in front ,of both ends of the
opposing slots. 1
'
'
'
50 3. In a weft insertingtdevibe, a weft inserter shed from theselvedges of the last pick at them
. ‘havinga metal body of &a substantially angular
,fell of vthe cloth ,to‘ said bobbins; a device for in- \
cross-sectionH said :'body' being split._ vertically‘ ' serting single wefts and weaving from both sides.
in its middle plane at its‘ two ends», whereby - of the loom, said device comprising \a weft in-;
, a double pronged rider having two slots is formed, serter foralternately gripping said threads, cut-,
ting ,means carried by‘ said weft inserter, that ‘55 .
\55.the middle portion of said body having a longi
"tudinal central groove, said- groove being in‘. the part of each weftthread which alternately stands '
longitudinal central plane passing through said between the weft inserter and the selvedge be-i
slots, and a' clamp carried by said weft inserter ‘ ing bent into the shed by the weft inserter while '
andsituated in said groove; said clamp compris 'said weft‘inserter enters the shed, the partof ,
co'ing two parallel resilient prongs which are in 1 the ‘weft situated-between its bobbin and the
contact with each-other, the ends of said prongs weft inserter being passed by said‘ weft inserter
being’ bent toward the walls of ’said groové to 1 through said shed as a' single weft, a pair, of mov
maintain said clamp in position'in the middle of able thread giiiding eyelets situated at both ,ends
rof the, shed, jsaid' eyelets placing the threads
4. In a weft, inserting andcutting-device, a stretched between the'fell of the cloth and the
said-groove.
-65
~
‘
.
L
"weft inserter havinga meta Q;- i r
tially angular cros'sésection'
Y
of a substan
‘d body being split
vertically in its middle plane. at its two ends",
= 70 is
whereby-a
formed, the
double
middle
pronged
portion
riderghaving
of said body
two
having
slots
bobbinsia°lternately ‘in >' and out of the pathof
as
the. weft inserter, and means for releasing the
weft from said ‘weft inserter after’ it has passed '
through the shed.
’
p
.
-
'1
7, In shuttleless looms for continuously feed
70.
a'longitudinal central groove, said groove being in -, ing the weft shots, in combination with a shed,
_ the longitudinal central plane passing through ‘and-a pair of bobbins placed on both sides ,ofthe. a‘
‘n said slotsya clamp carried by said weft inserter ' loom,‘ the weft threads fed from said bobbins be
and situated in said groove, said clamp comprising ing stretched ‘infront of both ends of the shed
.1‘ two'parallel resilient prongs which arein‘contact from the Jselvedges of thelast pick at the fell of 75'
2,072,160
'
'
v
5
bins being stretched in front of both ends of the
shed from the selvedges of the last pick at the
fell of the-cloth to said bobbins; a device for in
serting-?single wefts and weaving from both sides
of the loom, said device comprising a weft .in
the cloth to said bobbins; a device for inserting
single wefts and weaving from both sides of
the loom, said device comprising a weft inserter
for alternately gripping said threads, cutting
means carried by said weft inserter, the part of
the weft situated between its bobbin and the weft
serter for alternately gripping said threads, said
inserter‘ \being passed, by said weft inserter _ weft inserter comprising two slots situated to the
through said-shed as a single weft, a pair of weft , right and left of the central line‘of the weft,
releasing blades, each blade being adapted to inserter and extending obliquely with respect to
the height of the weft inserter toward that sur 10
tween the resilient prongs of the clamp as the, face of the- weft inserter which slides along the
weft inserter comes out of the shed to release ‘reed, a pair of; grooves being formed on' a sur
10 pass through a separate slot and penetrate be
the last-mentioned part of the weft from said
weft inserter after is has passed through the
15 shed, a pair of movable thread guiding eyelets
"'siutated’at both ends of the’shed, said eyelets
placing the threads stretched between the fell
of the cloth and the bobbins alternately in and
out of the path of the weft inserter, and a pair
20 of- movable supports, each support carrying a‘
a. continuation of a separate slot, a pair of
clamps for gripping the weft and carried by the
weft inserter, each clamp being situated in a
separate slot, 9. pair of, cutting blades carried by
said weft inserter, each cutting blade being
‘situated at the bottom of each of the slots, a
“pair of ?xed eyelets situated at both ends of
‘ -- ‘the shed, and a pair of ?xed weft releasing blades
situated-at both ends ‘of the shed.
v
releasing blade and a guiding eyelet.
8. In shuttleless looms for continuously feed:
ing the weft shots, in combination with a shed,
and a pair of bobbins placed on both sides of
25 the loom, the weft threads fed from said bob
bins being stretched in front of both ends of
the shed from the selvedges of the last pick at
30
face of the weft inserter, each groove forming
the fellof the cloth‘ to said bobbins; a device for
inserting single wefts and weaving from both
sides of the loom, said device comprising-a weft
inserter having gripping means at each end for
alternately gripping said respective threads, cut
ting blades mounted independently of the‘ in
serter on both sides of the selvedges at the en
35 trances to the shed between the point of the
10. In shuttleless looms for continuously feed
lng the weft shots, in combination with a shed,
a reed and a pair of bobbins placed on both sides
of the loom, the weft threads fed from said bob-'
bins being stretched in front of both ends of the
shed from the selvedges of the last pick at the fell
of the'cloth to said bobbins; a device for insert
ing single wefts and weaving from both sides of 30
the loom,'said device comp'rising av weft inserter
for alternately gripping said threads, said; weft
inserter comprising two slots situated to the '
right and left of the central line of the weft
inserter and extending obliquely with respect to
fell-of the cloth and the path of the inserter for . the height of the vweft inserter toward that sur
cutting a weft extending between the selvedge, face of the weft inserted which slides along the
and a bobbin close to the selvedge, the leading _. reed, a pair of grooves being formed on a_ surface
of the weft inserter, each groove forming a con
end of the part of the weft extending to the bob
tinuation of a separate slot, a pair of clamps for 40
bin
being
gripped
by
said
inserter
and
passed
40
thereby through said shed as a single weft, and gripping the weft and carried by the weft in
means for releasing the last-mentioned part of serter, each clamp being situated in a separate '
the weft >from said weft inserter after it has slot, a pair of cutting blades operatively arranged
passed through the shed.
‘
at both edges of the cloth adjacent the selvedges, '
9. In shuttleless looms for continuously feed-7 a pair of ?xed eyelets situated at both ends of 45
the shed, and a pair of ?xed weft releasing
a reed and a pair of bobbins placed on both sides blades situated at both ends ofthe shed.
_
RAYMOND DEWAS.
of the loom, the weft threads fed from said bob- '
ing the weft shotsyin combination with a shed,
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