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Патент USA US2135147

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Nov. 1, 1938.
w. w. ROBERTSON
.
2,135,147
TUBE FRAME FOR'AXMINSTER LOOMS
Filed Dec. 20, 1957
Inventor
Wmiam W- Robertson -
Attorney
Patented Nov. 1, 1938
2,135,147’1
‘
251354457X‘
,
‘
TUBE-FBAME iron AXM‘I’N'STEKI'LQOMSP
W'iiuanr»~w: Robertson, Ng?hbormw Mass; ‘ ash‘ ‘
‘
signer dlvcrbmptonrsz KndwlésmoonnWorks;
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va‘llcorpc'ir'ation'r ofrrMaissachw-f
setts"?
Application meember'zo, 1937, Serial No. 180,727
siclaimsa (airless-=10)»
'IThisinvention relates“ t6~ improvements in tube‘ resides‘ ‘in’ the‘
object ‘of’ the invention to provide improved means
for‘ attaching-the tube frame- to the transporting-V
5
chain.‘
}
_
combination ‘and ‘ arrangement‘v of‘
parts" hereinafter‘ described‘ and set ‘forth in'the
fra'niésfor'Axi'ninster looms and it- is the general
claims."
.
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g
I
Ini'fthe‘ ' accompanying ‘drawing ‘wherein a con‘
venien?embodihientcf my‘ invention is set forth,
‘
As hefet'ofofe‘i constructed ‘tube ~ frames have
Fig." 1v is” a "fr'ont‘elevation’ of 'one'~end of the
béen'provide'd 'w'ithbrackets of years comprising‘
tube' frame'ma'de ‘according'to my invention 'to-'
y
D
two‘pai‘ts 'each‘of-whicl'i engage a transporting; gether with the spool and clutchyparts being in‘
chain"; One of "théseip'art’s'is' ‘a guide ear which
lO
1
section,"
>
I
Fig.12‘is 'an‘end elevation looking in‘lthe direc'—‘ 10
projects betwee?‘the'doubk links of the chain and
is slotted to receive‘ the “second part which‘ is in
tibh"of arrow ZjFié‘. 1, and’ "
the fo‘rn‘i of a hook'extérii'di’rig through‘the slot of
the ear“ "to'lie' over" one of'the lihks’Of 'theych'a'in.
The ear ‘is generally'pro'videdwith an o?'s'ete‘at’
that part’tlieréo‘f which is ‘slotted and the bending‘.
'Fig."3"is"‘a vertical section through the top'of a’
guide"‘sprocketfo'rf'the "transporting chains; the
tube‘v fra1ne"being shown“ attached to the chain.
The‘tube‘frame*fo'rming the'subject matter of
of the metal together with-the slot weakens the
my, present invention comprises a h0ll0w1‘rec-I
tan'gular'bar‘l?‘prdvided‘with ‘a’series of yarn
tubes‘ I l 'and‘h'avin‘g a spool bearing‘ I2’secured to
the 'top thereof. This‘beari'ng receives the 'gudgeon
l3 Fo‘f'ay'a'r'n spool-‘s‘h‘aving'a metallic vhead. l4."
In‘ Wide "‘Axihiristef'ldom's? "time" frames of the
type“ used" heretoforei'are' subject ' to considerable
Vibration” ‘and. ‘furthermore
diameter‘ of the
yarn spools has‘ been small'.‘ In order ‘to permit
f’e‘,transportingichain ‘Mi-is‘ made‘ up of pairs
the' operation ‘of wide‘iAXini'nster looms at ‘high
~ _ rates of ‘speed and at the‘ same time carry a larger
innef‘liriks‘of any pair-‘being shown at 2'! and
.
25 amount of‘tuft' yarhthan’has been possible here
It
,
.
22)’ respectively."
,
The ‘chain ' moves" under a
sprocket v23 'rwhich 'n‘i'a‘y'be-‘carried'iibyithe ordinary
25
pull-‘over ‘shaft of ‘an viAxminster{loom ‘not shown.
tofore I propose to'use'a time frame of increased
cross section to provide ‘the desired-"rigidity. to
Tammie-is: ofthe usual construction except that
resist vibration'andaliseito support the greater
it‘niay'Ti'f' desired-be =made heavier than‘ the ordi
weight of‘ the "spoon. This? increased ‘Weight is n‘ary‘chain' to carry the enlarged tube frame.
30" borne 'by' the hooks which connect ‘the tube frame
At ‘each 'en'd-of the loom-there is a=clutchC hav
to'the chain'when‘ the 'tubeirame hangs under
CO O
ing‘an upright vwall - 25*a‘nd ' a- lower inwardly and
the chain, and is supported by the ears when the
dewnw'ardly inclined lip 26‘to’p'a-ssfunder the ad
tube ’ frame is over" the chain; »
jac‘e‘nt'iedge of‘ the‘ tube frame; 7 The clutch may
_Iri ord'éfto prov-idea stronger means for» at
tachi‘h‘g‘thé'ltub'e ‘frame to thefch'ain Ii'propose to
have wings! one of which is shown at‘*2l"to pre
vent lateral'idisplacement of'the tube frame and is
mount thehoo'k soltliat‘ thesar‘r'ie vcan?s1ide»rela'
ti'vely' to the'tube frame awayifrem the ear with;
mounted by~ ' rriea‘ns-lof" a pin" 28 "on "a? transporting
lev'e‘r“29?‘ Oscillation-‘of the clutch ‘to e?ect the‘
so-ca'lledi" wiping-immove‘ments ‘of the tube frame
ar'e'e?ected"by ‘a’? second? arm"301 connected piv-'
otally to the clutch as at 3|.“ A'relea‘sing lugi35
prdj ects’inwardl'yirom'the‘wall'25‘rfor a purpose to
be‘ described. 1 It'iisi'totbe-'underst0od' that the
chain-‘is moved rone'spaee-for each‘ tuft forming
operation of the loom-and'that during-this move
ment the‘r‘cl'utch will be in the full line position‘
out passing-thfo'ugh'the latter} B‘Sltl?‘s construc
tion the‘ear is solid'throughout‘iit's‘length and! is
40' much stronger than. corresponding ears used
heretofore.
_'
'
.
With the ~ho0kldcatéd’b'e'hind the ear it is 1111 a
relatively inaccessible position for hand manipula
lation, andit is a further objeetbf my invention
45 to form‘ the hook‘ with ?nger holds projecting-to a
position’ where they'can be reached toy-the weaver
should he desire to removea tube frame from the
indicated: in Fig; 1.
V
_
In 1 carrying» my r invention into effect ' I ‘provide
.
a -U-shaped slide block ' 40'- having a‘ vertical vweb
It is a further ‘objeet'bf fniyfmvennon‘toimser-t
4i and-topand- bottom feet “and 43,~which are
into the tubularbariofthew'tllbe 'fl‘ar'rie amnfqw
- capableof slidingialong the’ top andlbottominner
thereby pmvenn'nglweap‘oftne'moré ‘expensive 'tu}
low’barr A'hook EiFiswelded to the slide block
and a stud 5] has a reduced end‘whi‘chjextends
chain.‘
’
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_
V
,1
bldck- against" WhiGH ~tl'ié“"h66ky~ support‘ slides,
' a'p'peéifa's ‘the description preteens,‘ my‘izivennon
?at‘surfaces- 44 and Q45; respectively, of the, holé
through the web 4! and thelowerfp'a‘rtl of‘ the
hoekwt'o be‘ headed"’over‘ as" at EZZth‘ereby" as
65
2
2,135,147
sisting in holding these two parts together. The
top of the hollow bar is slotted as at 6! to permit
inward sliding of the hook.
-
A hollow block 65 is secured within the end of
the tube frame, as by welding, and has an inner
wall 66 serving as a bearing for the left end of
the stud 5!. A spring 61 surrounding the pin
and interposed between the web .66 and thewall
‘41 holds the hook yieldingly outwardly against
shoulders I03‘ to engage adjacent edges of the
single links lying between the double links 2|
and 22. These shoulders perform their usual
function of preventing excess vibration of the
tube frame relatively to the transporting chain.
In order to detach a tube frame from the chain
the weaver must push the hook 50 inwardly.
Since. it lies behind the ‘ear E and is narrower
than the earit is relatively inaccessible. ' To fa
cilitate this operation I form lugs III! on the
ing outward motion of the hook but permitting ,» hook, these lugs projecting far enough laterally
the same to be moved inwardly against action of from the hook to be reached by the weaver.
The parts attached to ear E and extending
the spring 61. The side walls 69 of the block 65'
lie against walls 55 of the tubular bar. In and inside the tubular bar restrain angular motion
engage and guide the sides of parts 42 and 43 of the ear relatively to the bar, but this is not
the only means by which this result can be accom
as the hook slides. Any wear resulting from slid
ing of block 40 occurs on walls 69 and not on the plished, as will be apparent from 'copending ap
10 the outer wall 68 of the hollow block, thus limit
bar I0.
'
plication ?led by Payne, Serial No. 180,805.
‘
The ear or tongue E which projects between
20 the links 2| and 22 may be formed substantially
as shown in Figs. 1 and 2 ‘and has the lower end
thereof riveted as at 16 to the wall 68. The ear
extends upwardly and may be offset slightly as
at ‘ll to have a straight upper end 12. The hook
50 has a bent upper end 13 to lie over the link 22,
and the relation between the end 13 and the
straight end 12 of the ear is very similar to’ that
heretofore used.
‘
-
In the past it has been customary, however, to
mount apart of the hook outside of the ear, but
it will be seen by reference to Fig. 1 that I locate
From the foregoing it will be seen that I have
provided a tube frame construction permitting
the use of a heavier bar. and also a larger spool,
the attaching means for the ‘ chain constituting
two parts which do not cross each other and
do not extend through each'other. ‘This result
is accomplished by having the hook lie entirely
at one side of the ear and mounting the-hook
on a block which is slidable within the hollow
bar of the tube frame. It will be apparent from
Figs. 1 and _2 that the ear is of considerable
strength and ‘can support the increased weight‘ 30,
of the tube frame 'due'to the larger ‘bar It ‘and. - '
all parts of the hook to the left of the ear E. The spool S. Furthermorethe‘side walls of block 65
engagethe parts: 42 and 43 of the block 40 to
lower end of the ear is perforated as at 80 and the
Wall 68 has a second aligning perforation‘8l, see vprevent wear of the‘ bar I0. Also, the lugs H0.
Fig. 1, to receive the release lug 35 carried by the
facilitate manual release of a tube frame from
clutch.
the chain.
,
'
_
In the operation of thatpart of my invention
thus far described the parts will normally be in
the full line position shown in Fig. 1 and as the
40 clutch moves to the left to assume the dotted line
position shown in that ?gure the releasing lug 35
will pass through the perforations 8D and 8| and
bear against the end of the pin 5|, thereby caus-.
ing the block 40 and’ the hook to slide inwardly
toward the center of the loom. This is accom
panied by movement of the bent end 13 to the
left of link 22,‘after which the clutch may be low
ered in the usual manner to present the tube
frame to tuft forming position. It is customary
to form the lip 26 so thatas the clutch moves in
' the tube frame is lifted slightly to permit clear
ance of the hooked end 13 with’ respect to the
link 22, and I retain this feature in my present
construction. After the row of tufts has been
formed the clutch moves up toward the chain and
the straight end 12 will enter between links 2|
and 22, after which the ‘clutch will move away
from the tube frame and spring 6'! will push the
hook from the dotted position of Fig. 1 back to
the full line position-
'
,
Because of the shape of the ear ‘H I ?nd it de
sirable to modify the construction of the ordinary
sprocket I06 found in the overhead of Axminster
looms to the extent indicated in Fig. 3. In this
?gure, where a section is shown through the.
sprocket at one of the double links, the body of
the sprocket is offset as at I05 to de?ne apocket
I06 into which the ear E may pass as the tube‘
frame moves up on one side of the sprocket.
Sprocket I00 is additional to' the pull-over
sprocket 23 and is located in the chain support-'
ing rack generally located above and behind the
loom proper.
75,
,
~
The tongue 12 of the ear has the usual rounded
.
>
‘Having thus vdescribed ‘my invention it will
be seen that changes and modi?cations may be
made therein by those skilled, in the art without
departing from the spirit and scope of the inven 40
tion and I do not wish to be limited to the details
herein disclosed, but what I claim is:
V
1. 'Inan Axminster loom having .a transport
ing chain, a tube frame,’ a bracket secured to the
tube frame and extending into engaging ,rela 45
tion with respect to the chain, a hook to engage
the chain located‘ wholly on that side vof the
bracket which faces the longitudinal center of
thetube frame, means de?ning‘ a sliding bearing
between the hook and the tube frame, and means
‘ to move the hook away from the ear toward the ,
so
center of theetube frame.
2. In an Axminster loom having a transport?
ing chain, a tube frame including a hollow car
rier bar rectangular in cross section, an ear ?xed
with respect to the bar and extending laterally
therefrom to engage the chain, a hook for the
chain‘ located wholly on that side of the ear
facing the longitudinal center of the bar, a slid
able bearing block ?xed to the hook and located
inside the carrier bar, said bearing block en
gaging interior surfaces of the carrier bar to
prevent rotation of the hook in a plane trans
verse of the axis of the bar, and means to move
the block and hook longitudinally of the bar to
65
ward the center of ‘the tube frame and away
from, the ear.
‘
'
v3. In an Axminster loom having a transport?‘ '
ing chain, a, tube frame comprising a hollow car
rier' bar rectangularin cross section, an ear for 70.
the tube frame engaging the chain, a bearing
member to which the ear is fastened, said hear
ing member being secured to the carrier bar and
located. inside the latter, a hook for engagement
with the .chain' located entirely on that side of
2,135,147
the ear which faces the longitudinal center of
the carrier bar, a cylindrical guide element se
cured to the hook and extending through the
guide bearing, and a block secured to the hook
to engage interior surfaces of the carrier bar to
prevent substantial angular motion of the hook
in a plane transverse to the axis of the bar.»
4. In an Axminster loom having a transport: j
ing chain, atube frame comprising a hollow car?
10 rier bar rectangular in cross section, an ear for
the tube frame to engage the chain, a bearing
member to which the ear is fastened, said bear
ing member being secured to the carrier bar and
located inside the latter, a hook for engagement
15 with the chain located entirely on that side of
the ear which faces the longitudinal center of
the carrier bar, a cylindrical guide element se
cured to the hook and extending through the
guide bearing, and a block secured to the hook
20 to engage interior surfaces of the slide bearing
to prevent substantial angular motion of the
hook in a plane transverse of the axis of the
carrier bar.
5. In an Axminster loom having a transport
25 ing chain, a tube frame including a hollow car
rier bar rectangular in cross section, an ear'at
one end of the carrier barsto engage the chain,
3
a. hollowvblock secured to the ear and extending
into and ?xed with respect to the carrier bar,
a hook located wholly between the ear and the
longitudinal center of the bar, and sliding guide
means carried by the hook and located within
the hollow block, said sliding guiding means slid
able along interior surfaces of the hollow block
to move the hook from the ear toward the center
of the tube frame and awayv from the chain.
6. In an Axminster loom having a transport
ing chain, a tube frame, an ear ?xed with 're
10
spect to the tube frame and extending toward
the chain,~said ear being of a substantially uni
form width throughout the greater part of the
length thereof between the tube frame and the
chain, a hook for the tube frame located wholly 15
on that side of the ear which faces the longitudi
nal center of the tube frame, sliding connections
between the hook and the tube frame, said hook
being of substantially less width than the ear,
and projections extending laterally from the 20
hook to constitute hand holds accessible from
that face of the ear remote from the longitudi
nal center *ofthe tube frame to permit manual
sliding of the hook relatively to the tube frame.
25
WILLIAM W. ROBERTSON.
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