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Патент USA US2403724

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July 9,` 1946.
2,403,724
_i. J. KAUFMANN, JR
Y
LOOM SHUTTLE
Filed March 4, 1944
A.;
J0
11796'
l
MPE@
Patented July 9, 1946`
2,403,724
STATES PATENT oFF-ice
die :Manufacturing Company,
e Col'îi’l’ïratienïef "'PePiliiîl
l‘VAilpli.cation March f1, 194,4, SerialNg. v525,005
(Cl. 1397217) '
1
,
2
l'i/iyfinvention l'relateslth vshuttles for looms, and
c 1 fly' tb 'tnep?ovision of
improv d meeiie, m eiie.. ehuitie’e, fer maintain
itfïelát
sf
,
,
,
„
.
,
.
device mounted thereinembodying the main feaf
tures ofthe present invention;
..
`
" ' "
' Fig. 2 is a longitudinal central sectional view of
the shuttle shown in Fig. 1;
‘ '"
A
"
Fig. 3 ils >an enlarged end elevationr of.- the
threading block detached from the shuttle, lillus
trating more particularly the position of the ten#
In the shuttl'eywhi‘h are used in thefmodern
types Vof automatic looms, )thereN is, usually ‘pro
sion members therein; ’
vided e iiiieeding'bleek er» the Y.reireiidfef,the ~
shuttle> vwhich çiis lfn‘ov'ided with means vfor lante-_
11`
"
‘
, 'i are ,ieee thread
ed'm the .Shuttle im eäia Y'Íafie? the belebiii
.hee 'heee `Í?eië1enie1ïe<i .iiif' te@ „ehiiiiieë ',Siieh
threading elöekeeier?eiie iii rarieiieeheriee and
,siif'les’ ehi iii‘fêef?ie irïeieneee Where it ie .Cieeirf
atlete eeñirót me ,er ieee aeeureielv, the
'iefrïeieií' ¿if ‘the’ iiliii'ie. three@ .reid ,ihreafiirie
bleekeï'erierievided'iieiieilr ai the enel. thereof te
`
Í ‘
Ü
.
-
‘Figl ‘l is an enlarged longitudinal section of
the `inner -end vporti‘c'ín of the'thrëad-«ing bloei;A ,de
m"
Wel
iheñlli e ,reeel iS .ted fregi the Debbie
'
lock Wi
ng pres
d mem
iiere eétireeriwhiehiïie ftîireeeirei'ele aeit'peeees
te iii'eeheenei ,ef theihreeeiiie eher, .and .there
lïy there .ie Drevieied a. .uniform tension entre fiil
ing -yarn as the shuttle passes from side to _side
in the `Qiielîe'iiofi .91’ the 10er?.-
~
.
Iii iiie'tei'ieieii .de .eee Y hereteiere provided,
Pìííîtie‘ilafir where.. _eee were. .used fer press
ing the ieiieieri me bere toward eachother, it
eemetimee eeenrreä'tìiai. ., hen _the reversal _of
mevefrnent of the Shutile teck place,k the ñll
ing ‘thread would overrun and throw a loop into
the space behind onelor thel otherof the tension
members and become fouled on `the tension
Spring.
'
‘
'
Also, there was a tendency of the lint from the
filling yarn îto pass into said space and pack be
hind thetension~ members rendering the same
ineffective and 'causing the tension members "to
unduly bind the filling thread.
The object therefore óf'tlìe present invention
is to provide an’inniprovegwfgrm of tension device
for automatically threading shuttles which is so
taóhèd;
Fig. ’5 is lan„enlarged
. ..underneath plan _vievv of
the inner-eed relriie? ef the threading bleek; '
15
»6 >ie e 'Seetieiieiviey 'teken epei‘eiiimately
on the’li'ne >6--6 of> Eig.
still yfurtheren harge?d;
llliesf '1 and 8 ere .respectively eide elevations.
bersv
en @Seele
detached;
'Similaire
and e Fia êäef the tension
.
‘
20
y'Trie‘sl 9V and 1.0 re ,underneath plan views
thereof.
`
_
Ii’ ‘eiieiilsi’ ef eeiiree, ee aerienne@ met the
ele'eÍeril
eed drawing hereinere illustrative
iiíeieirï ...fifi that verieiie eharieee. ’and medifice
tiens may he mafie inthe etrueturediselosed
25 vitrée-ui departing from the .Spirit ef the inven
tion.
`
f
`
ÄReferring ie the` drawing, in the particular
embediiiiefii ef the invention therein shown, the
Shuttle bedr l0 ie preferably made of _wood and
has the Vilis‘ual bobbin chamber II in which the
behbin l2 iS held by thefueual means (not shown)
whereby it may be readily .discharged therefrom
and @new AVbobbin Jsubstitutez_i as the filling runs
'
Out frein, time to time
The shuttle body I il is also provided with the
usual Sidedelivery Veye I _3 for the passage 'of the
filling yarn I4. The sides of said eye may be pro
tected by hardened steel pins >I5 vand I6, or the
like, to take the Wear caused by the run ofthe
ñllihg. The threading block I1 comprises;Vv pri
marilv a' casting, preferably made of f'metal,
eitìerveast iron ¿or brass, as desired. Said block
I‘! has its outer side surfaces I8 and I9 prefer
ably parallel With each other and its bottom sur~
face 20 substantially at right angles thereto.
The body portion of the threading block I 1 is
gael; behind the tension members from time to
ñtted into a complementally shaped groove 2| in
une.
one end of the body portion I I) ofthe shuttle.
The nature and characteristic features of the
The body portion of the threading block I'I is
invention will be more readily understood from 50 provided with a longitudinal channel 22 through
the following description, takenv in connection
which the filling thread I4 passes to the side de
with the accompanying drawing forming part
livery eye I3 during the Weaving Operation as
hereof in which:
said ñlling is laid into the cloth.
Fig. 1 is a top or plan view of the threading
y The threading block I 'I may also be provided
end portion of ’a loom `shuttle having a tension l 55 with a rearwardly extending horn portion 24 and
constructed and arranged that fouling of the ñll
ing thread on the tension springs is eliminated,
as is also the tendency of the lint to collect andr
2,403,724
3
4
an intermediate horn portion 25 extending into
the longitudinal channel 22 of the threading
block I1, said portion serving to assist in the ini
nal thread channel through which the filling
threading operation has been completed.
At the inner end of the threading block I1,
that is the end disposed toward the bobbin,
larly disposed portions along the sides of the
tension members, and an additional laterally
extending flange along the thread entrance side
thread passes from the bobbin to the outlet, ten
sion members mounted in the threading block,
springs mounted in the threading block pressing
tial threading of the block and in the retention
of the filling thread therein, after the initial CI the tension members toward each other, angu
of each of the tension members, said fianges
overlapping the sides of the thread channel at
the entrance end thereof thereby to provide
guards to prevent thread loops and lint from
there is mounted a pair of tension members 26
and 21. The inner end of the threading block
I1 is recessed vertically as at 28 for the mount
ing of said tension members 2‘8 and 21 therein.
The lower ends of the tension members are pro
' passing behind the tension members.
threading type having a threading block mount
extends a pin 3l) mounted in the lower portion
ed in one end thereof and having a longitudinal
of the inner ’end of the threading block I1.
The upper end of each of the tension plates
is bent over as at 3| to provide lug-like exten
sions 32 which are positioned respectively in
suitable apertures 33 drilled in the upper portion
of the inner end of the threading block I1. In
this manner the tension plates are guided at both
the top and the bottom.
For the purpose of imparting the requisite
tension to the members 26 and’21 so that the
same will grip the filling thread as the same
passes therebetween, there are provided coil
springs 34, which are Ipositioned in hollow screws
.
2. In a loom shuttle of. the automatica
vided With suitable apertures 29 through which
thread channel through which the filling thread
passes from the bobbin to the outlet, tension
members mounted in the threading block, springs
mounted in the threading block pressing the
tension members toward each other, the thread
ing block having a recess, at the entrance end
of the thread channel, and the tension members
having portions extending into the sides of said
recess and overlapping the sides of the thread
25
channel thereby to provide guards to prevent
thread loops and lint from passing behind the
tension members.
_
l
3. In a loom shuttle of the automatically
35 which are threaded in the side walls of the
threading block in vertical alinement with the
guide pin 30, at the bottom and the guiding aper
tures 33 at the top. The hollow screws 35, in
threading type having a threading block mount
Which the springs 34 are mounted serve to pro
vide means for regulating the degree of tension
passes from the bobbin to the outlet, tension
members mounted in the threading block at the
'. entrance end of the thread channel, springs
on the members 26 and 21.
The main or body portions of the tension
ed in one end thereof and having a longitudinal
thread channel through which the filling thread
mounted in the threading block and pressing the
tension members toward each other, the thread
ing Vblock having a recess at the entrance end of
figuration in cross section, as for example, they
the thread channel, and the tension members
may be provided with flat faces 36 and have
angularly disposed flanges 31 along the side mar 40 having portions extending into the sides of said
recess and overlapping the sides of the thread
gins thereof which are disposed Within the
members 26 and 21 may be of any desired con
thread channel, and the similar angularly dis
, channel thereby to provide guards to prevent
thread loops and lint fromY passing behind the
posed flanges 38 along the thread entrance side
tension members.
_
thereof each have a further extending flange 39
4. In a loom shuttle of the automatically
substantially at right angles to the main faces. 45
threading type having a threading block mount
The additional vflanges 39 are disposed on the
ed in one end thereof and having a longitudinal
side toward the bobbin chamber and extend
thread channel through which the filling thread
into additional grooves 40 provided in the inner
face of the threading block I1, overlapping the 50 passes‘from the bobbin >to the outlet, tension
members mounted in the threading block at the
edges of the inner recess, thereby effectively pre
entrance end of the thread channel, springs
venting the entrance of loops which may occur
mounted in the threading block and pressing the
upon reversals of motion of the shuttle, or when
tension members toward each other, the thread
for any reason the thread overruns, and also
ing block having a recess at the entrance end
effectively serving to prevent dust and lint from
the filling thread from passing into the space 55 of the thread channel, and flanges along the
sides of the tension members extending into the
behind the tension plates, enabling the same to
function effectively at all times without inter
ference from such sources.
I claim:
l. In a loom shuttle
of the automatically . 60
threading type having a threading block mount
ed in one end thereof and having a longitudi
side portions of said recess and overlapping the
sides of the thread channel thereby to provide
guards to prevent thread loops and lint from
passing behind the tension members.
JOHN J. KAUFMANN, JR.
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