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Патент USA US2108121

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Fèb. 15, 1938.
2,108,121
F. C. HALE ET AL
CIRCULAR LOOM
Fined Dec. 1e. 193€-
1Q
2,108,121
Patented Feb. 15, 1938
UNITED STATES PATENT OFFICE
2,108,121
CIRCULAR LOOM
Frank Corbyn Hale and James Russell Yorke,
Spondon, near Derby, England, assignors to
Celanese Corporation of America, a corpora
tion of Delaware
Application December 16, 1936, Serial No. 116,072
In Great Britain January 17, 1936`
6 Claims.
(Cl. 139-13)
This invention relates to improvements in cir
cular looms of the kind in which the shuttles
are held in position within the warp shed by
means of rotatable vane wheels disposed sol as
5 to pass through one warp sheet into contact with
flanged rollers carried by the shuttle, as de
scribed, for example, in U. S. Patent No. 2,050,328.
The -engagement of the vane wheels and the
flanges of the rollers provides the thrust on the
10 shuttles necessary to enable relative circular mo
tion to take place between the shuttles and the
warps with respect to the looml axis, and the
slots in the vane wheels allow for the free pas
sage of the threads of the penetrated sheet dur
ing such relative motion.
In a circular loom in which the shuttles rotate
about the loom axis, the vane wheels are driven
about the axis at the necessary speed, and by
their engagement with the flanges of the rollers
propel the shuttles at the same angular speed.
The vane wheels and the flanged rollers are
made of suitable material to stand up to the
rolling action between these members, and the
rolling contact ensures long working life for the
25 rotating parts and very little tendency to wear
ing action such as might produce sharp edges
liable to damage the w-arp threads.
According to the present invention, each ro
tatable roller is provided with a thrust-receiving
flange adapted to be engaged by the side of a
vane wheel, .and a flange -of tough resilient ma
terial, the resilient flange being disposed adja
cent to the side of the thrust-receiving flange
which contacts with the vane wheel, and spaced
36 from such side to form an annular groove suffi
ciently wide to permit free entry therein of the
edge of a vane wheel. When the shuttles tend
to over-run the vane Wheels, as for example when
the loom stops, the tough flanges take the thrust
40 of the shuttles on the opposite sides of the vane
wheels, instead of the vane wheels coming intoI
contact with hard metallic parts such as might
damage them, and especially the rear edges of
the vanes.
45
The vane Wheels are conveniently mounted in
pairs, the two wheels engaging two flanges pro
vided on each roller, and the tough flanges are
conveniently disposed one to each roller in front
of the rearmost flange so as to contact with the
50 rear face of the foremost vane wheel when over
running occurs.
Each roller may consist of an assembly of two
metal ñanges to engage the sides of the two vane
wheels, two metallic bushes of lesser diameter
to engage the peripheries of the vane Wheels,
and a ñange of the tough resilient material in
terposed behind the intermediate metallic bush
and adjacent to the front face of the rearmost
metallic flange. The tough flange may have the
same diameter as the main roller >flanges and a Cl
length sullicient to give clearance between itself
and the foremost metallic flange for the fore
most vane wheel.
The resilient flanges are advantageously made
of tough, non«metallic material such as. ñbre or
resin-impregnated material such as sheets of
canvas or other fabric blocked into -a solid mass
capable of being machined.
By way of example a form of apparatus ac
cording to the invention incorporated in a shut- ‘f
tle of the type described in U. S. Patent No.
2,050,328 will now be described in greater detail
with reference to the accompanying drawing in
which
Fig. l is a front elevation of a shuttle;
Fig. 2 is a front elevation of a detail of Fig. l
on larger scale; and
Fig. 3 is a part cross-sectional front elevation
of a detail of Fig. 2.
Referring to Fig. 1 the shuttle comprises anr N) 5
upper portion 4 on which is mounted a weft
spool 5 and a lower or body portion 5, the body
portion being formed with an opening 'l across
which extend two vertically disposed bearing
members B. The members 8 each hold two` dou
ble ball bearings 9 (Fig. 3) in two horizontally
aligned pairs, each pair rotatably supporting a
horizontally disposed spindle I0.
The bearing
members 8 are spaced apart by members ll in
which the spindles l0 rotate freely. VThe ends
of the spindles i0 project from the bearings 9
and each end supports a flanged roller l2 (Fig.
l), the rollers supported by similar ends of the
two spindles being in vertically aligned relation.
Each roller l2 is formed from a number of l
associated bushes and flanges which fit closely
on the spindle l0. Thus> each of the twoI rollers
disposed at the left-hand side of the left-hand
bearing member 8 comprises a metal bushing
i3 (Fig. 3) shaped to fit against the ball bear
ing 9, a metal flange 14 of larger diameter, a
flange I5 of the same diameter of tough resilient
material such as fibre or resin-impregnated can
vas, a metal bushing I6 of the same diameter as
bushing i3 and a further metal flange I1 of the
same diameter as flanges I4 and l5. The whole
assembly is held in close contact by a washer
I8 which is pressed against the end flange Il
by nuts i9 screwing on the threaded end of the
spindle I0.
55
2
2,108,121
As will be observed from Fig. 3 the general
shape of an assembled roller I2 is that of a cyl
to permit free entry therein of the edge of the
inder formed with an annular groove round its
2. Circular loom shuttle of the type which is
positioned in the loom by vane wheels, compris
ing rotatable rollers adapted to be engaged by the
vane Wheels, each of said rollers being provided
periphery between the flanges I5 and I'I, and an
end portion of similarly reduced diameter to the
right of the ilange I4.
In order to drive the shuttles round the loom
(i. e. to the left as seen in Fig. 1) , each vertical
pair of rollers I2 is engaged by an associated pair
10 of vane wheels 2I mounted on a driving shaft 22,
with a ilange for receiving thrust from the side
of a vane wheel and a separate ilange of resilient
resin-impregnated ílbrous material disposed ad
jacent to the side of the thrust-receiving flange 10
the shaft being carried round the loom at the
rate at which it is desired to drive the shuttles.
The edge of the leading vane Wheel 2I of a pair
which contacts with the vane wheel, and spaced
from said side to form an annular groove suffi
freely enters the groove between the flanges I5,
edge of a vane wheel.
15 I'I and the edge of the other vane wheel fits in
the reduced portion of the roller to the right of
the flange Ill, the peripheries of the wheels roll
ing against the bushings I3, I6 while the sides of
the Wheels adjacent to the flanges I4, I'I thrust
20 against the ilanges and so urge the shuttle round
the loom.
If the shuttles tend to over-run the vane wheels,
as for example when the loom stops, the move
ment of the shuttles relatively to the vane Wheels
brings each resilient flange I5 into contact with
the adjacent side of the nearest vane wheel, the
resilient ilanges thus taking the thrust of the
shuttle.
In this manner the danger of the vane
wheels contacting with hard metallic portions of
the shuttle such as might tend to damage the
wheels is obviated.
As Will be apparent from Fig. l the rollers l2
disposed at the right-hand side of the right-hand
bearing member 8, while comprising the same
35 type and number of components as the left-hand
rollers, are slightly modified in View of the dif
ferent “hand” of the rollers. Thus each roller
as a whole is disposed nearer to the bearing mem
40
vane Wheel.
ber 8, the ilange I4 abutting the bearing 9 and
the bushing I3 being disposed between the flange
I 'I and the washer I8. Similarly, the resilient
flange I5 and the bushing I6 are interchanged,
the vane wheel-receiving portions of the roller
thus
being formed at the right-hand sides of the
45
flanges Iii and il as with the rollers i2 disposed
at the left-hand side of the left-hand bearing
member 8.
Having described our invention, what we desire
to secure by Letters Patent is:
50
l. Circular loom shuttle of the type which is
positioned in the loom by vane: wheels, comprising
rotatable rollers adapted to be engaged by the
vane wheels, each of said rollers being provided
55 with a flange for receiving thrust from the side
of a Vane wheel and a separate flange of tough
resilient ñbrous material disposed adjacent to
the side of the thrust-receiving flange which con
tacts with the vane wheel, and spaced from said
side to form an annular groove suiliciently wide
ciently wide to permit free entry therein of the
3. Circular loom shuttle of the type which is 15
positioned in the loom by vane wheels, compris
ing rotatable rollers each adapted to be engaged
by a pair of vane wheels, a pair of flanges on each
roller, each flange being adapted to receive thrust
from the side of a vane wheel, and a separate 20
flange of tough resilient fibrous material on each
roller, said resilient flange being disposed be
tween the pair of thrust-receiving ilanges and
spaced from the side of a thrust-receiving flange
which contacts with a vane wheel to form an an
25
nular groove sufliciently wide to permit free en
try therein of the edge of a vane wheel.
4. Circular loom shuttle of the type which is
positioned in the loom by vane wheels, compris
ing composite rollers adapted to be engaged by 30
the vane wheels, each of said rollers comprising
a metal ñange, a metal bushing of smaller di
ameter, a tough resilient ilange and a further
metal ilange each having the same diameter as
said first-mentioned metal flange, and a further
metal bushing having the same diameter as said
first-mentioned metal bushing, said flanges and
bushings being juxtaposed to form a generally
cylindrical body having both a
duced diameter at one end to fit
riphery of a vane wheel, and an
between a metal flange and the
portion of re
against the pe
40
annular groove
tough resilient
ilange, the groove being sufñciently wide to per
mit free entry therein of the edge of a vane
wheel.
5. A roller for a circular loom shuttle of the 45
type which is positioned in the loom by vane
wheels, comprising a metal thrust-receiving
flange and a tough resilient ñbrous flange spaced
therefrom by means of a metal bushing of smaller
diameter than said flanges.
50
6. A roller for a circular loom shuttle of the
type which is positioned in the loom by vane
Wheels, comprising two metal thrust-receiving
ilanges and a tough resilient fibrous ilange ar
ranged between them and spaced from one of 55
them by means of a metal bushing of smaller di
ameter than said flanges.
FRANK CORBYN HALE.
JAMES RUSSELL YORKE.
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