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OcìA 8,1946-
Filed DBC. 16, 1944
v2 Sheets-Sheet l
_ /
Patented Oct. 8, 19.46
.Constantine A. Caldes, Jersey city, N. J.
the bed I4.
This invention relates to circular looms and
means and means for separating the warp for
thepassage of the shuttles through the shed.
The principal object of the invention is the pro
/ from creels and are acted on by tensioning means.
The warp threads ‘28’ are> disposed radially as in->
dicated in Fig. 1 in dot and dash lines.
In the present instance there are shownfour-
vision ofv improvements in a circular loom where
by the production of such loom is materially in‘
shuttles 25 which are disposed in such. relation
withrespect to each other that a proper weaving
action may take place in which single alternate
warp threads 28 are shifted to open the shed
for the passage of the weft threads therethrough.
Another object of the invention is to simplify
the construction and the'mode of operation of
certain features of a circular loom in order toV
reduce original and maintenance costs.
The drum 24 has a suitable num
ber of vertical slots 21 through which the'warp
threads 28 extend to the weaving point. It isl
to be understood the warp threads 28 are guide-d
has` especial reference to novel shuttle driving
AppIicationDecember 16, 1944, Serial No. 568,481
(c1. 139-15)
14 Claims.
With the foregoing and other objects in view,
Each shuttle 25 includes a frame- 29 havingy an
the inventionY residesV in the combination, con
opening therein to accommodate a spoolY 30' of
struction and operation of the parts hereinafter 15 weft
thread 3|. The spool 30 is operatively
described and illustrated inthe accompanyingdrawings, in which---y
mounted on the frame 29 to keep its thread
under proper tension andV said thread. 3| passes.
" Fig. 1 is a fragmentaryjhorizontal sectional
view of a circular` loom embodyingv the lfeatures
‘ through a guide eye‘32 on a horizontal or lateral
`33 onv the frame 29. The weft thread
of the present invention, the section being'taken( 20 extension
3| passes. from the eye 32 to the weaving point
approximatelyon the line. |---I of Fig. 2.'
Fig. 2 is a fragmentary vertical sectional view.
Fig. 3 is a top plan view of the power trans
mitting rotor of the shuttle driving mechanism.
Fig. 4' is a diagrammatic view illustratingv the 25
sequence of operation of the shuttles.
, »
Only so much of a loom has been `shown. for a
cooperates with means. carried. around .by the
34 on its leading end, and a shoe 35 which slides
in a circular passageway formed in the drum24.
The features' of the'present. invention may be
incorporated »inA circular looms of various types.
clear understanding >of the invention. 'I
invention will have a lateral extension, such as
the extension 3,3, or equivalent means, which
lower warp threads of the openshed. between the
shuttle and the rotor.V TheA frame 29 has Va point
Fig.` 6 is a perspective View of a warp thread:
The shuttle 25 maybe of any
rotor for the purpose of driving the shuttle, and
at the same time enabling the passageV of the
Fig. 5 is a perspective view of one of the shuttle
at the core 2|.
preferred type, but in accordance with thepresent
On reference to Figs.` 1. and 2„ it willlbe‘ 'ap
parent the loom' includes a shuttle driving. rotor
I0 having a centralhub'.|1I"which'is >journaled
I2. ñxedly secured,4
on a` central hollow shaft "
The shuttle ldriving mechanism in addition to
the rotor I9, includes driving members 3E, there
being three of such members 36 used in conjunc
tion with each shuttle 25 in the present instance.
As shown most clearly in Fig. 5, each driving
mem-ber 36 consists of a bar of metal of'suitable
length and-rectangular in crossr'section. The up
as'at I3, to the bed I4 ,of the loom frame ’|5.
per end-31 of the member 35' is preferably round
A bevel gear I6 fastenV the hub' || meshes „with 40 in cross-section. A cam roller 33 is mounted on
a' bevel gear I‘Iy fast on one end of a horizontal
the member 33 at one side midway between the
shaft I8 Vsupported by'bearings I9 and 20, re
ends thereof. The driving' members 36 are dis«
spectively, on the bed I4. The shaft |8 trans
posed in notches 39, respectively, in the periph
mits power «from a suitablev source to the rotor 45 ery'of the’rotor I0. The extension 33 ha's'holes
Il)V through the intervention of the gears I6 and ' 40 therein to receive the> upper ends 31„ respec-- c»
tively, of the related group of three driving mem~
`<The upper end of the shaft I2y has an up
36. >These driving members 36 are disposed
` standing core 2| about 'whichV thewoven tubular
vertically by reason of the notches 39 adjacent
material vis~v to be' formed 2 to pass upwardly
a stator 4| consisting of a ring having> an un.
throughthe-tube -22 disposed coaxiallywith re
dulated or hill and dale groove 42 providing up
' spect to the `core 2|. vThe tube 22 is fixed on a
per and lower cam surfaces 43 lwhich acton the
spider23 mounted on top of a drum 24 .in which
rollers 38 while disposed in said groove 425. The
the. shuttles 25 travel in.a.circular path.
' provision and Iarrangement of parts Visf such. that
„The drum. 24 is iixedly supported in vany suit-y
55 atleast .onef-ofïtheëv driving.l members. 3l6l .willlbe » ené
able.A mannerI on. the., upstanding .flange 26'. on'
- 4
gaged with the extension 33 at all times to im
on said stator and rollers on said driving mem
bers respectively which cooperate with said cam
part a driving effort. At times two of the mem
bers 36 are engaged with the extension while
the third member 36 is disengaged, and vice versa.
Each driving member 36 is moved up and down
5. In a circular loom as set forth in claim 1,
and means carried by the rotor which is operated
by means on the stator to cooperate with the
shuttle to open a shed for the weft thread of the
by reason of its roller 38 and the cam surfaces
43 plus the rotatory movement of the rotor I 0.
Each of the driving members 36 of each group
moves down to allow each lower 'warp thread 28
to clear or pass between the shuttle and the ro
tor, and' then said member 36 moves up into en
gagement with the shuttle extension 33 for im~
parting a driving effort to the shuttle. In this
manner each shuttle 25 is constantly driven
around in a circular path.
The warp threads 28 normally lie horizontally
6. In a circular loom, a shuttle having guided
10 movement in a circular path, and driving mem
bers each movable into and out of engagement
with said shuttle, said shuttle having holes there
in to receive the driving members respectively for
the aforesaid purpose, each of said driving mem
bers when engaged with said shuttle imparting a
driving effort thereto along its circular path.
in a plane slightly below the point 34 of each
7. In a circular loom, a rotor, a ring stator sur
shuttle 25 as shown in Fig. 4. In order to shift
rounding said rotor, a shuttle having guided
alternate warp threads 28 upwardly from the
movement in a circular path, driving members
normal position, there is provided shifting means 20 arranged in peripheral notches respectively in
as follows. A shifting member 44 is arranged in
said rotor and contacting said stator so that said
cooperative relationV` to the point 34 of each
driving members may move up and down While
shuttle 25. The mem-ber 44 consists of a bar of
traveling around with said rotor, and coacting
metal of suitable length and is rectangular or
means on said driving mem-bers and the stator to
non-circular in cross-section. The upper end 25 cause the up and down movement of said driving
portion of ythe member is enlarged somewhat and
members in succession, each of said driving mem
has an oblique or inclined surface 45. A cam
bers when moved up engaging said shuttle to im
roller 46 is mounted on one side of the member
part a driving effort from the rotor to the shuttle.
44 midway between the ends thereof. The shift
8. In a circular loom, a rotor, a shuttle having
ing member 44 is disposed to move up and down 30 guided
movement in a circular path with respect
in a notch 41 in the rotor l@ at the periphery.
to the axis of said rotor, a stator, said shuttle
The roller 46 is disposed to travel in the groove
having spaced holes therein, ‘driving members,
42 to be acted on by the cam surfaces 43. These
and coacting means on the rotor, stator and driv
Asurfaces 43 in cooperation with the rotational
ing members to operate the driving members to
movement of the rotor it move the member 44 35 cause them to severally entersaid holes to drive
upwardly which causes the surface 45 to act on
the shuttle along its circular path in response to
the particular warp thread 28 and to shift the
the rotation of said rotor.
thread upwardly out of its normal position to
9. In a circular loom, a rotor, a ring stator
be engaged by the upper inclined surface of the
said rotor, said stator having a con
point 34. The shifting member 44 then immedi 40
tinuous groove therein providing upper and lower
ately moves downwardly into its down position
complemental cam surface, a shuttle having
clear of the next warp thread lying in its normal
guided movement in a circular path with respect
The point 34 carries each upwardly
to theaxis of said rotor, driving members dis
shifted warp thread further to a maximum den
posed vertically in peripheral notches respectively
gree, while alternate warp threads are shifted
downwardly to open a shed for the passage of the 45 in said rotor and contacting said stator, each of
said driving members having a cam roller dis
weft thread 3| therethrough. posed
in said groove to cooperate with said cam
vvFrom the foregoing it will be understood the
surfaces, the provision and arrangement being
weft threads of the shuttles are interwoven under
such that the driving members move up and down
one warp lthread and over another in succession
succession >while traveling around with the
for the weaving operation. The use of a plurality
rotor, and each of said'driving members in its
of shuttles increases the speed of the weaving
up position engaging said shuttle to impart a
operation and so increases the production of the
driving effort from the rotor to the shuttle, and`
loom. Any suitable number of shuttles may be
each driving member in its down position in turn
used according to the design of the loom. Also,
enabling each lower warp thread to pass be
the order in which the warp threads are >shifted 55 tween the shuttle and the rotor.
may be varied by changing the number and rela
10. In a circular loom as set forth in claim 9,
tive disposition of the shuttles.
a warp thread shifter for lifting alternate warp
I claim:
threads to the action of shed opening means on
l. In a circular loom, a, shuttle, a stator to guide
the shuttle, and coacting means on'the rotor and
the shuttle, a rotor, shuttle driving members ar
stator to ‘operate the warp thread shifter in timed
ranged on said rotor in relation to said shuttle
accord with the movement of the shuttle.
for movement into and out of engagement with
l1. In a `circular loom, a rotor, a shuttle hav
the shuttle while traveling with said rotor to drive
ing guided movement in a circular path with
the shuttle and enabling warp threads to pass 65 respect to the axis of said rotor, a stator, a warp
between the shuttle and the rotor, and means to
thread shifter, rand coacting means on the rotor,
operate the driving members.
stator and shifter to operate the shifter at pre
2. In a circular loom as set forth in claim l,
wherein said driving members move up and down
with respect to the rotor.
determined> intervals in response to the rotation
of saidl rotor, said warp thread shifter moving up
0 and down at said intervals While traveling karound
3. In a circular loom as set forth in claim l,
with said rotor.
wherein said last means includes cam surfaces
on said stator.
ing guided movement in a circular path'with re
4. In a circular loom as set forth'inclaim 1,
wherein said last means> consists of cam surfaces4 75 spect to theiaxis of said rotor, a stator, a -warp
thread shifter, and coactingmeans on the rotor,
mined intervals in response to the rotation of
said rotor.
14. In a. circular loom, a rotor having a guide
of said rotor, said Warp thread shifter consist- s
groove therein, a shuttle having guided move
ing of an elongated .member .non-circular in
ment in a circular path with respect to- the axis
cross section and having an inclined surface on
of said rotor and Which travels in unison with
its upper end, and said shifter moving up and
the rotor, a Warp thread lifter in said groove
down at said intervals ’while traveling around
having up and down movement in relation to the
with said rotor.
shuttle and which is caused by the rotor to travel
13. In a circular loom, a rotor having a guide
therewith, and means to cause the up and down
groove therein, a shuttle having guided move
movement of the Warp thread lifter at predeter
ment in a circular path with respect to the axis
mined intervals While traveling around With said
of said rotor, a warpI thread lifter operatively
mounted in said groove to travel With the rotor in
relation to the shuttle, and means for moving
the warp thread lifter up and down at predeter 15
stator and shifter to operate the shifter at pre
determined intervals in response to the rotation
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