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Патент USA US2125894

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R. DEwAs
\
NEEDLE wEAvING Loom
Filéä-July 14, 193e
2,125,894
"
2 Sheets-Sheet 1
#mi l '
Aug. 9,' 1938.
_' R. DEWAS
` NEEDLE >wEAvING LooM
" Fired July 14,v 1956
2 sheets-sheet 2
Patented . Aug. 9, 1938
i' 2,125,894
` UNITED STAT Es
A
PATENTÍ ori-‘ICE
` 2,125,894
NEEDLE WEAVING LOOM °.
Raymond Dewas, Amiens, France
» Appuœuon July 14, 193s, serial No. 90.512
„
In France August 10, 1935
(ci. 13s-12s)
9 Claims.
v The arrangement of these guiding means as a
- The present invention relates to improvements
whole on the needles oiïers the advantage of pre
venting the coming into contact of the walls of
in needle weaving looms fed from iixed weft bob
bìns and has for one ofits objects to provide im
, proved means for the guiding of the needles of'
operation to be effected lat great speed, lubrica
tion being dispensed with and the warp threads
being preserved as much as possible.
These improvements are described hereafter 10
and shown diagrammati'cally in the attached
drawings, merely as examples of the carrying out
in combination with one another, thus forming an
improved guiding device, or which may be em
V10' ployed separately.
- , These improvements consist in means of guid
ing the larms of the needles in their alternate pas
sage in the shed and in means for the guiding of
these arms'as well as the heels of the needles,
in the channels.
’
y
`
_
`
The association of these improvements enables .
needles, said meansbeing adapted to be employed
15
the needles, properly speaking, with other' sur- faces liable to damage them...
5 these looms, whatever may be the type and what
ever may be the method of driving the' said
.
of the invention which are by no means limiting.
» Fig. 14 is a plan view from above of one arm
of the needle with its heel, arranged with a view 15
These improvements are applicable particularly to their _guiding in accordance with 'the inven
in those looms in which the needles for conveying tion, the head of the needle -not _being shown,>
and for pulling the weit thread in the shed _are because this head, which isattached to the _end
of the type described and claimed in the specifica-~ of the arm, may be oi any known type;
Fig. 2 is -a side elevation seen from the tell oi 20
20 tions accompanying my prior U’. S. patent appli
cations Ser. No, 'i25„885,`iiled May 16, 1934 (n_ow
' Pate'ntNo.- 2,072,161) and Ser. No. 19,576, ñled
May 3, 1935.
With regard to the improvements made in the
25 guiding of _the arms of the needles in the shed.
thecloth;
~
'v
-
Fig. 3 is a cross section of the arm, taken on
the line 3-3 of Fig. 2;
Fig. 4' is a cross section of the heel-'on the line
4-4ofFig.2;
.-
,
25
,
Fig. 5 is a side elevation, seen from the fell of
they consistinthe guiding of the' arms in four `
principal opposed directions two‘by two,.utilizing ' the cloth, showing the arm at the end of its for
for this purpose means situated on the lower part ward stroke in the shed, at the >moment when ,
of the arm oi needles, facing the fell oi the cloth the thread is exchanged over; this figure also
30 (that is to say"of the last weit thread inserted) showing the channel in which the heel is located 30
and cooperating Vwith other means situated on the and which is fitted on one end of the slay, thel forward part oi the slay, also facing the iell of sword and the reed being shown rin part.
Fig.- 6~ is a cross section, on the line 6_6 of
the cloth,- which enables the shuttle race to be
dispensed with, as well as' with they use ofthe _ Fig. 5 'showing the manner in .which the guiding-
35 reed as a means of guiding, thus avoiding 4the of the arm .of the needles in the shed is carried 35
inconveniences lwhich in most cases arise from . out;
Figs. ’1 and 8 are. fragmentary views oi details .
their employment.
_
.
,
.
With regard-to the improvements provided in of one of the guides, shown in Fig. 6 attached
the guiding .of the arms oi theneedles in their to the 4fore partof the slay, facing the fell of the
40
channels,
these consist in employing certain
of v cloth; '
40
.
Fig. 9 is a cross section taken on the line 9-9
the means 'provided for the guiding of the arms
in the shed, in combination with other similar
additional guiding means which are situated on
oi Fig. 5 showing the position of the arm of thel
needlel and its guiding in the channeh'
Fig. .10 is a crosssection taken »on the line
the upper'part> oi the said arms, facing the reed,
45 these ’ various means cooperating with the inner Ill-_l0 of Fig. 5 showing the position and the 45
- guiding or the heel inl the channel;
walls of the'channels arranged' accordingly. Figs. 11 and 12 are'ìcross sections of the heel,
- Finally, with regard to the improvements pro
y vided iorv-th'e'guiding'oi the heels oi the needles showing two variants in the construction of the
in their channels, these consist in employing guid
Fig. 13 is a cross section of the heel and of its
50 ing means which are similar to those employed for
the guiding of the arms in the channels but which channel,` showing a variant in the construction
latter;
have much larger surfaces, >so that they may ex
tend over at least two opposite sides of the heel,
of these'latter;
'
u
.
Y
i
'
The needle, the arm and the heel of which are ,
thés means cooperating with the inner walls of ' shown in Figs. r1,-.2 and 5, vwhich in a needle loom
55 th channels arranged accordingly.
is at the left side of the loom,`has in practice on
2
2,125,894
_its end, the head (not shown) which passes the
or other material, the upper ends 'of which are
weft thread through the shed.v
aligned on the passage, in the shed, of the strip
3 of the arms I of the needles, and at the greatest
possible distance from the reed blades. 'I'his lat
ter characteristic affords the very great advantage
The needle- situated at the right side of the
« loom and which also has at its end. a head which
passes the weft thread through the shed, is formed
similarly; therefore it has not been shown. Nev
ertheless, in accordance with the ~type of the head,
the sections of the meansfor the guiding of the
heel and of the.` ann, may vary from those of _
10 the other needle;
' According -to these ñgures and with regard to
the more important f_orm of construction (Figs.
1 to 10), I- is the arm of a tubular needle, prefer
ably nmade of light metal, and having a square
15 cross' section.A 'I‘his metallic construction oifers
the advantage, as compared with wood, of avoid
ing -all deformation under the influence of heat
and dampness.
'
T‘he end I’ of this arm, which enters into the
.20 shed, is arranged in any suitable way to receive
the head or to form the head, partially or en
25
-
The opposite end _I" of this arm, which slides
in the channel, carries the heel and also its stud
2 directing the alternate rectilinear movement of
the needles, when this 'is attained, for example,
by picking arm and connecting rod.
30
With regard to the guiding of the arm I in the
shed, (Figs. 5 and 6) this is carried out, in ac
cordance with the spirit of the invention, by a
longitudinal strip 3 suitably profiled, attached to
the lower part o_f the face I° of the arm I facing
35 the fell of the cloth and extending preferably over,l
the entire length of the said arm. ,This strip is
assisted in its function by the guiding elements or
guides I3 which are attached to the edge of the
slay facing the fell of the cloth. These guides I3,
which enter into-the interior of the shed, across
the lower sheet of the warp threads when the slay
returns, are constructed in such a way as to en
sure, without the assistance of other -parts, than
the strip 3, the guiding ofthe arm in the shed, in
45
four principal directions which will be referred to
hereafter, without the arm coming into contact
either with the slay or with the reed.
Preferably this strip 3 has an angular cross
section, m‘ainly in order to reduce to‘a minimum
50 the height of- the guides I3 so that-_and for other
reasons-_they may Dass under the fabric easily
when the weft is beaten up. The strip 3 is fitted
in such a manner that its lower face 3d projects
slightly below the lower face I4 of the arm I., for
55 the purpose of ensuring the guiding of the armv in
the shed, 'as in the channel, in a vertical direction
` from below to above.
`
The side face 3¢ of its hori
zontal web is intended to ensure the guiding" of the
arm in the shed, as in the channel, in a horizon
tal direction from left to right., The upper face
3h ofthis said horizontal web is intended for the
_ guiding of the arm in the shed, in a vertical direc
tion from above, to below and the side face 3'»
is intended to guide the arm in the shed in a hori
zontal direction from right to left.
'I'he guides I 3 'are arranged, at determined in
tervals and -in suitable number, along the length
of the slay 5, between. the channels '8 and at
' tached, by bolts or otherwise, on the edge ofthe
these threads are drawn in.
'
' lIn order to ensure, on four sid‘es and in accord
ance with the four- principal directions, the guid
ing of the arms i in the shed by means of the
guides I‘3 in combination with the strip 3, the
upper ends ofthe guides I3 are cut out on the
front part facing the arms I into the form of` a
hook, the inner profile of which corresponds par
tially to the profile of the strip 3 and consequently
has faces I3?, I3", I 3d and I3", so that ‘the strip-3,
when the needle advances into the shed, pene
trates successively and slides in the hooks of the 20
said guidesi I3, being guided by the corresponding
tirely. This head may be of any type whatever
and particularly of the type described in m
earlier applications already referred to.
of preserving to a considerable degree the warp
threads which come 'in contact with the said
guides, a's well as the reed blades between which
faces 3b, 3°, 3d and 3‘ on four sides, namely in ver
,tical opposite directions from above to below and
from below to above, and laterally in the direc
tions opposite the side of the fell of the cloth and
of the side of the reed. 'I‘he hooks might be ar
ranged or combined with ‘one another to coni
pensate for eventual wear, as will be understoodv
easily.
To facilitate the entry- of the end y of the strip 3 30
into the hook of the guides I3, the angles of the
sloping parts of the latter preferably are rounded,
as also is the entry end of the strip.
From the foregoing explanations it will be
understood’readily that as the result of this guid
ing of the arms l in the shed by means -of the
strip 3 and the guides I3, the heads of the needles
move throughout th‘eir strokes and meet, in an
absolutely accurate and certain manner, without
strain of the assembly. For this> reason, ’it is i
possible to drive the needles at a high speed and l’
with great frequency.'
with a view to the guiding of the arm l in the '
channel 3, an additional strip 3’ is mounted on
and attached along the upper -part of the face I l
of the arm I, facing the reed I I; it is mounted in
such a way that its upper face 3b’ projects slightly
above the upper face Ib of the arm I,'so as to eifect
guiding in the channel in avertical direction from
above to below, lateral guiding in a direction from
right to left being- ensured by the face I" of this
strip 3’. The guiding in the opposite lateral di
rection from left to rightî and guiding in a .verti
cal direction from below'to above are ensured by
the faces 3° and 3‘l of the strip 3 for the guiding
in the shed, this _strip 3 being diagonally opposite
to the strip 3', so that by these very‘simple means
the guiding is ensured rigorously. -
The strips 3 and 3'_v do not extend- over the'
whole height of the arm chiefly for to obtain
very great lightness and at- the same time among
other `reasons, to allow, in the case of the ap
plication to needles working in accordance .with
the arrangements described in myearlier appli
cations already referred to, of the sectionalizing
of the face I° of the tube of the pulling needle
with a view to the passage of the blade ensuring
the release of the weft thread.
With a view to the guiding of the heel of the
65
70 _slay facing the fell` of the cloth, parallel to the needle in the channel 8, the end I " of the needle 70
teeth or dents II of the reed, the lower baulk I2 is provided, in this form of construction, on two
of which is held in the angle formed by the upper ~ of its opposite faces Illand Iß, with strips 4,
web and the horizontal web of the T-iron 5 form
covering the said faces and extending beyond
ing the slay Without` a shuttle`race.
them above and below the faces Ib and Id, to
75
'I'hese guides I3 are constituted of lugs, of metal the same extent as the faces 3b" and 3d-of the 75
3
2,125,394
strips 3' and 3, the thickness of each Aolf these
` strips 4 being the same as that of the strip 3 or 3'
corresponding to it.
'I'he strips 4, as a-result of the conception of
be dispensed with and also the serious inconveni- . '
ences resulting therefrom. '
Further, as the result of this same guiding of
the heel and of the arm through the whole
the assembly, are much reduced in length which _ length of the channel, it will be appreciated that
contributes to the lightening of the needle and the, needle, when in the'channel, can stand up,
the reduction ofthe total space occupied by the
loom.
.
>
The strips 3, 3'. and 4 can be. made of any
l10
other suitable material, for instance ‘ of vul
canized libre.
‘
'
-
With regard to the channel arranged at each
end of the slay 5,-it consists of a box 8 of cast
iron or other material, the side of which facing
the f_ell of the cloth has a slot 9 throughout the
whole of its length for the passage of the driving
stud 2, said slot allowing of the needle` I being
withdrawn from the rear when this is required.
The mounting of the channel V8, `at least when
feeding is effected with a single weft thread, is
carried out in such a way that the end which
is directed towards the shed reaches (when a
without» strain, to the various reactions due,
among others, to the beating up of the weft.
. The strips 4 on the heel may cover all the faces
of the end I" of the arm I entirelyor partially.
10'
Fig. 11 shows a method of covering the faces I“
and I° of vthe heel totally and the faces Ib and Id
of the heel partially.-
.
Fig. 12 shows a method of covering the faces I“,
Ib, I c and Id ofthe heel totally by a sheath 4.
Fig. 13 ‘shows a method of covering the faces I“,
Ib, Ic and Id ofthe end I" of the needlel forming
the heel totally by means of the four strips 4,
the `inner> profile of the channel 8v conforming'
closely to the outer profile of the strips. When
a tube with sharp angles is employed, the »pro
jecting angles of this channel are removed and`
fabric is --.woven according the maximum width
rounded olf, as shown‘at 8e, so as not to come
for which the loom is designed) the immediate ’ into contact with the said angles of the tube.
neighborhood of the temples, in order to be able. The four strips 4 afford the advantage of a. very
to reduce to the minimum the total lengthof the
needle and consequently its weight and 'at the
. same time the whole space occupied by the loom.
This involves, at the conclusion of the stroke be
.30 yond the shed, the re-entry of the head for a cer
tain distance into the interior of the channel; and
when the conveying needles are arranged to work
large contact surface with the channel, as an
result of which wear is still further reduced. As
the parts of the channel 8 which conieinto con-f
tact with the strips of the arm have .not been
altered, the working of the whole remains the 30"
same.
-
In certain cases' the-reed may share in .the t.
according to the process described in my earlier . guiding of the arm in the shed. For this purpose
applications already referred to, this involves,'for
~the profile of the hooks of» the guides I3 is
35 the purpose of feeding the conveying needle, the . altered in such a way as».to guide the strip on 35
arrangement in the side 'ofthe channel 8 which
faces the reed, at its end which is directed towards
the shed, of a slot 8 extending for a certain
40
length and intended for the passage‘of the weft
thread coming from the bobbin.
. The attachment of the channel 8 on the T-iron
5 which vforms the slay is ensured by means of
screws passing through the middle horizontal web,
of the said T-iron 5 and entering the bosses I0
45 forming projections on the lower face of the
the faces 3b, 3e and 3‘l only, that is to say in
vertical directions from above to below, lateral
from left to right and'vertical from below _to
above, whilst lateral _guiding from right to left
is ensured by the sliding of the face 3?’ of the 40.
strip 3' against the reed, the latter, for this pur
pose,~ being situated in the prolongation of the v
inner vertical face »8*EL of the channel.
In other cases a shuttle race may be employed
for guiding the arm inthe shed, from below -to `
above, making use of the reed for guiding from
>
‘
The interior of the channel 8 is hollowed out iight to left, or again the part ofthe hooks act- _
in accordance with a rectangular section, for ex-’ ing> upon the ,face 3“ of the strip 3 may be em
ample, corresponding to the extreme outer di ployed. The shuttle 'race >is then notched at
50 mensions of the arm and the heel with their the location of the guides- I3 to allow of theirbeè 50
channel 8.
strips.
Y
_
_
,
is to be understood. that,_ _ without
A _
, ` departing.
By the combination ofthe inner faces of the in'gItmounted.
channel 8“, 8b, 8° and 8‘l with the faces 4", 4h and `»from the spirit ofthe invention, alterations, im
. 4d of the strip 4 of the heel on the side of the provements _or vadditions may be introduced and
55 reed; and the faces 4b, 4° and 4d ofthe strip 4 of the employment of equivalent- means may also
`the heel on the side of the feu'of the cloth, the
_ For example, the section of the strips is not
guiding of the heel in the channel is thus. car
invariable. and these may have other shapes orried out in four principal directions.
By the combination of the same'inner faces of another'number of faces„the hooks of -the guides '
'60 the channel 8 with the faces 3e' and 3b' of the as `well as the channels having corresponding 60
supplementary strip -3' and with the faces 39 and 'profiles so as to ensure guiding on another num
3d of thestripl 3, the guiding of the arm I in the ber of faces or in another number of directions.
channel 8 is carried out in the same way also on In _the same way the _strips of the heel and of the
arm need n_ot go beyond the levels ~ofthe tube,
four sides.
be considered.
'
'
'
'
As a result of the lguiding in the four principal _ for example if the channel 8 is given the section
opposed directions which'4 ls ensured, as shown
Y labove, of the arm of the needle when it is in the
_shed and in the channel; as a result also of the
shape and of the arrangement of the‘heel and of
the dimensions of the surfaces in contact with
the saidchannel, the whole in collaboration with
great lightness of the needle, the guiding of the
moulded materiaL'for example. Also when they
» heel in the channel so that it may slide easily
piece and‘the arm may share inthe sliding‘4 of
the faces of‘ the (channel, thus increasing the
T70
75
may be ensured; which, whilst increasing the
speed, enables the lubrication of the channel to
65
shown in Fig. 13.
Similarly the 'strips on the arni and on the
heel may be made in a single piece, of fibre or ofA
are made of moulded material, for example with 70
a basis of syntheticresin, the arm itselfland its
strips and also the head, may be made in a single '
already considerable contact'surface. The sur
4
2,125,894
faces which come into contact with the guides
may also be covered with vulcanized fibre or with
_ other resistant material.
Further the slot 9 and the stud 2 may be on
portion, a guide channel connected to said slay
at one end thereof and positioned adjacent the
`side of the shed where said shed penetrating
portion enters, means carried by said heel por
another face of the channel, for example, if the .'tion for engaging said guide channel to guide drive of the needle were carried out by setting said heel portion to prevent lateral and vertical
the stud 2 directly into motion, by means of a movement, an L-shaped longitudinal rib car
long stroke grooved cam arranged near the chan
ried by said shed penetrating portion and ex
tending along the side facing the fell of the cloth
nel.
‘ Finally these improvements will also be appli
to be woven and Yprotruding slightly below‘the 10
cable to looms in which there are several pairs lower surface of said penetrating portion, a plu
of needles bound by their heels.
I claim:
1. A weft inserting mechanism for looms, com
prising the combination with a slay and a shed
forming mechanism, of a needle element includ
ing a shed penetrating- portion and a heel por
tion, a guide channel connected to said. slay at
one side thereof and positioned adjacent the side
of the shed where said shed penetrating portion
enters, means carried b`y said yheel portion for
engaging said guide channel to guide said heel
portion to prevent lateral and vertical movement,
a longitudinal rib carried by said shed penetrat
ing portion and facing the fell of the cloth and
a plurality of spaced guide members mounted at
intervals on said slay engaging said rib during
the penetrating movement, said rib and said guide
members being so .constructed that said shed
30
penetratins portion will be guided to prevent lat
eral and vertical movement, and means for mov
lng the needlethrough the‘shed.
2.~ A weftinserting mechanism for looms, com
prising the combination with a slay and a shed
35 iormingmechanism, of a needle element includ
rality of spaced guide‘members _mounted on said
slay at intervals, said guide members including
means engaging said _L-shaped rib during the
penetrating movement to guide said shed pene
trating’portion to prevent lateral and vertical
movement and permit penetration thereof into
the shed, means for moving the needlel through
the shed.
.
5. A weft-inserting mechanism v for looms, 20
comprising the combination with a slay and a
shed-forming mechanism, of a needle element
»having a substantially rectangular cross-section
and including 'a shed penetrating portion and a
heel portion, a guide channel connected to said
slay at one end thereof a?’d positioned adjacent
the side of the shed where said shed penetrating
portion enters, means carried by said heel- por
tion for engaging said guide channel to guide
said heel portion tov-prevent lateral and vertical
movement, an L-shaped‘longitudinal rib carried
by said shed penetrating portion and extending
along the~ side facing the fell of the cloth to be
wovenand protruding slightly below the lower
surface of said penetrating portion, a plurality
ing a shed`penetrating portiona'nd a heel portion,« of spaced guide members mounted on said slay
i a guide channel _connected to said slayat one side at intervals, said_~ guide members including
thereof and positioned adjacent the side `of the means engaging said l.-sha'ped rib during the
shed where said shed penetrating portion enters, penetrating movement V`to guide said shed pene
40 means carried by said -heel portion for engaging trating portion to prevent lateral and vertical
said guide channel to
de said heel portion to movementand permit penetration thereof into
prevent lateral and vertical movement, a longi
the shed, a second >longitudinal rib carriedvby
. tudinal L-shaped rib carried by said penetrating - said shed penetrating portion and mounted sub
portion,~ a plurality oivspaced guide members
stantiallydiagonally opposite to said ñrst men
tioned rib and protruding slightly above the up
members including means engaging said L-_-` per surface of said shed penetrating portion, said
shaped rib duringthe penetrating, movement to ribs being constructed to engage said guide chan
guide said shed penetrating-portion to prevent nel when the shed penetrating portion is in
lateral and vertical movemen'tand permit pene- _ serted into and withdrawn from the shed where
by said shed penetrating portion will be con
50 tration `thereof into the shed and means for mov
ing the needle through the shed.
’
tinually and evenly guided to preventllateral-' 3. A weft inserting mechanism for looms, -com
and vertical movement whileit is in the guide
prising the -combination with a slay and a shed
channel, and means for moving ' the needle
forming mechanism, of a needle element includ
through the shed. _
_ mounted on said ‘slay at intervals, said guide
55' ing a shed-penetrating portion and a heel portion
a guide channel connected to said slay at one side
thereof' and positioned. adjacent the .side of the
shed where s__aidshcd penetrating portion enters,
heel portion for engaging
-00 said giudeïwchannelÁ-Áto guldesaid heel portion to
prevent lateral and' vertical movement, a longi
tudinal L-sliapedl rib carried by said penetrating
portion, a plurality of spaced guide members
mounted on said slay at intervals, said guide
members including a pair of fingers engaging said
rib during the penetratingmovement to guide
said shed penetrating portion.. to prevent lateral
and vertical movement ‘and permitV penetration
havingvaI substantially rectangular cross section
and including a shed -pf'anetrating portion and a
heel portion, a guide channel connected to said 60
slay at one end thereof and positioned adjacent
the side of _the shed where said shed penetrat
ing portion enters, means- carried by said heel
portion for engaging said guide channel to guide
said heel portion to prevent lateral and vertical 65
movement, an L-shaped longitudinal rib carried
by said shed penetrating portion and extending
prising the combination witha slay and a shed
alongthe side facing the fell of the cloth to be
woven and protruding slightly below the lower
surface of said penetratingportion, a plurality
of spaced guide members mounted on said slay
at intervals, said guide members including means
forming mechanism, of a needle element hav
engaging said L-shaped rib during the penetrat
into the' shed, and means for moving the 4needle
70 through theshed.`
4. A weftinserting mechanism for looms, com
-75
6. A weft inserting mechanism 'for looms,
comprising the combination with a slay and a
shed-forming mechanism, oi' a needle element
ing a substantially rectangular cross section and ing movement to guide said shed penetrating
including a- shed penetrating portion and a heel _ portion to prevent lateral and vertical -move
5
2,125,894
ment and permit penetration thereof into the
shed, a second longitudinal rib carried by said
and. protruding slightly above and below the up
per and lower surfaces of said heel portion, a
shed penetrating portion and mounted substan- ' longitudinal L'-shaped rib carried by said shed
penetrating portion and extending along the side
facing the fell of the> cloth to be woven and
protruding slightly below the lowerl surface, a
plurality of spaced guide members mounted at
intervals on said slay, said guide members in
tlally diagonally opposite to said ñrst mentioned
rib and protruding slightly above the_upper sur
tace of said shed penetrating portion, said ribs
being constructed‘to engagel said guide channel
when the shed penetrating portion is inserted
into and withdrawn from the shed whereby said
10 shed penetrating portion will be continually and
evenly guided to prevent lateral and vertical
movement while it is in the guide channel, means
for moving the needle through the shed and slots
in said guide channel one of said slots‘accom
15 modating said last mentioned means, the other
one of saidslots permitting the passage of the
weft thread arriving from the bobbin and pass
ing to the selvedge.
,
’7. A weft inserting mechanism for looms,
20 comprising the combination with a slay and a
shed-forming mechanism, ‘of a needle element
having a substantially rectangular cross section
and including a shed penetrating portion and a
`heel portion, a- guide channel connected t0 said
25 slay at one end thereof and positioned adjacent
the side of the shed Where said shed penetrating
portion enters, means carried by said heel por- _
tion for engaging said guide channel to guide
s_aid heel portion to prevent lateral and vertical
30 movement, said means including guide strips
mounted on opposite' sides of_ said heel portion
cluding means engaging said L-shaped rib dur
ing the penetrating movement to prevent lateral 10
and vertical movement, a second longitudinal
rib carried by said shed penetrating portion and
mounted substantially diagonally opposite to said
ñrst mentioned rib and protruding slightly
above the upper surface of said shed penetrat 15
ing portion, said ribs being constructed to engage
said guide channel when the shed penetrating
portion is inserted into and withdrawn from
the shed, ,whereby said shed penetrating portion
will be continually and Aevenly guided to pre 20
vent lateral and vertical movement while it is
in the guide channel and> means for moving the
needle element through the shed. `
8. A weft inserting mechanism according to ,
claim 7 in which said guide strips entirely sur 25
round said heel portion.
'
~
’ 9. A weft inserting mechanism according to
claim 7 in which said guide strips only partly
surround said heel portion.
RAYMOND DEWAs.
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