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Патент USA US2135155

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NOV. 1, 1938.
Original Filed March 6, 1935
- 6 Sheets-Sheet l
Richard ,Greemeai Turner
Nov. 1, 1938.
Original Filed March 6, 1935
6 Sheets-Sheet 2
Richard Greerúeaf Turner
Nov. l, 1938.
Original Filed March 6, 1935
6 Sheets-Sheet 3
Rich ard Greemen‘í Turner
Nov. l, 1938.
Original Filed March 6, 1935
6 Sheets-Sheet 4
155 ‘
Richard Greerúea? Turner
BY î l
Nov. 1, 1938.
Original Filed March 6. 1935
6 Sheets-Sheet 5
Richard Greenkeaî Turner
a@ .fù wat
Nov. 1, 1938.
original Filed March @[19:55
' e sheets-sheet e
Rìçhard Gveemeaì Turner
Patented Nov. 1, _1938-
> 2,135,155
Richard 'GQ Turner, Worcester, Mass., assignerI i
to Crompton & Knowles Loom Works, Worces- _ .
ter, Mass., a corporation of Massachusetts
`f_or'ignmi application Mai-ch s, 1935, serial No.
Divided and this application December t
a ,"27, 1937, Serial 'Nor 181,754 A
' ' This isa division of myco-pending application
Serial No. 9,645 ñled March 6, 1935.
’ This invention .relates to improvements in
fancy or multishuttle box looms `and it ls the gen
6 eral object of the invention to provide such a
loom which is capable of replacing 4certain, of the
weaving shuttles when their'weft supplies are
practically exhausted and to stop the loom when
the weaving supplies of certain other of the shut
10 tles'are substantially exhausted.
In the Weaving of certain fabrics which cal
for several kinds of weit it «frequently occurs
that twocolors predominate while one or two
other colors are used infrequently for decorative
15 purposes. _ In such a loom there is less need for
automatic renewalof the running weft in the
infrequently used yweaving shuttles than is the
case with those shuttles which are in more fre
quent action. My present invention provides an
20 eflicient and comparatively simple loom which
changes a part only of the running shuttles auto
matically and stops the loom when exhaustion
approaches in the other shuttles, so that they
may be replenished by hand.
It ~is a further object of my present invention
to provide a single weft detector on the magazine
end of the loom to detect the condition of each
running shuttle when at that end _of the loom.
By such a feeler I am able to keep any shuttle
30 in action as long as desired and am not re
stricted to any deñnite or limited sequence as is
the case with certain multishuttle shuttle chang
ing looms heretofore proposed. The detector
gives the indication which initiates either shut
35 tle changing or loom stoppage, depending upon
which of the several shuttles is empty.
-It is a further object of my present invention
to provide two'separate loom- controllers, one a
(ci. 13s-_232)
It is a further object of my invention to pro
vide a loom as already described wherein an in
dication for a shuttle change can be stored and
retained during and after a period Vin which the
loom is stopped for hand replenishment of some
of the shuttles. In this way a. very active shuttle
carrying a white weft, for instance, can indicate
exhaustion when at the magazine .end of the
loom and then upon arriving at the drop box end
of the loom be moved out of action by a control 10
exerted through the pattern mechanism, where
upon an infrequently active shuttle comes into »
action and acts through the detector to stop‘ the
loom. Upon resumption of weaving the shuttle
ñrst to indicate will ultimately become active 16
again and will be replaced by a similar reserve
shuttle uponits arrival at the magazine end of
the loom, the indication for such a change having
been retained.
When the weft feeler is on the magazine end
it must be Withdrawn at the time of exchanging
shuttles to prevent breakage and a repeated indi
Since certain of the shuttles in myim- ,
proved loom do notcoact with the shuttle chang
ing mechanism but‘are replenished by hand the 25
feeler will not` be withdrawn in such instances
and in order to prevent a continued ñow of cur
rent through a detector circuit during loom stop
page I arrange to box those shuttles which act to
stop the loom on the side opposite the feeler 30
when the loom is stopped. In this way an ex
hausted loom stopping shuttle- is out ofl contact
with the feeler to prevent burning of the latter, _l
and a repeated indication cannot be given.
- It is another object of my present linvention to 35
employ the shuttle changing and loom stopping
means `together with a warpl stop motion and so
shuttle changer: and _the 'other loom stopping
time the parts that when the loom is stopped be
cause of approaching exhaustion ¿the shuttle
mechanism,l both of which arev under control of
needing replenishmentwill be at thev4 drop Lbox
side of .the loom'whereas .when-ythe-.loom is`
" a single weft detector, together with a part mov
ing in timed relation with `the box motion which
-controls the Yshiftingïc'r drop boxes. The shuttle
stopped because ofr a warp fault it will .come on
changing controller may‘in'clude selector mecha
the intervening pickA or .beat` of .the yloom when
the; active shuttle islonìthe opposite .or magazine
‘ a choice of changing operations, while the`v stop
tell at a Íglance `whether rtheloom was stopped by
nism -for the ‘shuttle changing magazine to a'iïord
ping controller will have but one _mode Aof opera
tion,> with' the ¿sameir'esuln namely stopping
whenever lthe less lfrequently vused vshuttles are
50 exhausted. `~ By this arrangementïthe single _weft
detector initiates alli'of the 'changes'which‘are' to
bring „about yan ‘alteration in loom operation'
either ‘~ changing or stoppingQwhile the part mov
ing'in >timedt relation with'the box motion‘de-r
termines which kindî ‘ci n alteration is to' occur.
side of the loom. _ Bythis relation the weaver can'
weft` or warp fault..
` ‘ "
y ‘a been vproposed hereto-j.
I am aware thatit has
fore to u_sje" multiboxjlooms-_withvbobbinchanging
attachments, but practical~ experience shows that> 50,
such looms -are' vnot >entirely 'satisfactory in. the
weaving ofî'certai? `fabrics„because „oi the fact>
pick after transfer, and. also'jthe .thread end _ex-`
tending `from the; outscmglfbohbm~1surea-io be»
that the shuttle is not 'fullykthreaded onthe ñrst
drawn back into the shed to form a double pick.
That part of my present invention which relates
to renewal of the weft employs shuttle changing
mechanism which places in action a shuttle
which is fully threaded and completely removes
front and back stacks of reserve shuttles I6 and. „
the trailing weft end with the old shuttle.
oted to the magazine and operated by Aa rod 22
which extends down toward the lower part of
the loom and has adjustably secured thereto a
Th’e warp stop motion is ordinarily capable of
giving an indication of warp fault at any time
including that period in the cycle of the loom
10 when the weft detector gives its indication.
Where the loom stopping control for both the
warp stop motion and the detector is exercised
through asingle solenoid there is an opportunity
for the warp stop motion to excite the solenoid
A15 at the time the feeler is detecting on a full bob
bin and a false indication for weft stopping might
therefore result with the shuttle boxed in the
shifting boxes. It is a further object of my in
vention to prevent such improper stopping by
interrupting the circuit of the warp stop motion
so that it cannot give an indication to the com
mon controlling solenoid at the time the weft de
tector is having its detecting action.
With these and other objects _in view which
will appear as the description proceeds, my in
vention resides in the combination and arrange
ment of parts hereinafter described and set forth
in the claims.
In the accompanying drawings wherein a con
venient embodiment of my invention is set forth,
Fig. 1 shows the forward part of one end of
the loom having my invention applied thereto, ’
Fig. 2 is a view of a part of the opposite end
of the loom showing four shifting >shuttle boxes
35 together with the box motion,
Fig. 3 is a plan taken in the direction of arrows
3---3, Fig. 2,
with the parts in a diñerent position,
Fig. 5- is a view on an enlarged scale of certain
of the structure shown in the lower >part of Fig. 1,
Figs. 6 and 7 are diagrammatic views showing
the structure of Fig. 5 in different positions,l
Fig. 8`is a transverse section on line 6_6, Fig.
45 5 on an enlarged scale,
Fig. 9 is a diagrammatic view of the electric
Fig. 10 is a transverse section trough the lower
interior part of the loom,
hook 23.
Fig. 11 is a plan view in the direction of arrow
Il, Fig. 10,
Fig. 12 is a horizontal detailed section on line
I2-I2 of Fig. 10,
Fig. 13> is an enlarged vertical section on line
55 I3-I3 of Fig. 5,.
Fig. 14 is a plan view of the parts shown in
Fig. 13 taken in the direction of arrow I4, and
Fig. 15 is a detailed horizontal section on line
I 5-_I 5 of Fig. 5.
In the drawings I have shown several known
mechanisms which cooperate with themselves and
other new parts to carry my invention into eiïect.
These known parts comprise the multishuttle
magazine, the shuttle changing boxes and their
65 lifter motion, selector means to determine which
type of reserve shuttle is to replace-theV empty
The back stack of shuttles rests on a floor 24 10
and a plunger 25 is arranged to move the bottom
rear shuttle >forwardly into the compartment C
located under the bottom front reserve shuttle.
This plunger 25 is moved by a lever 26 operative
ly connected to a second downwardly extending
rod 21 having a hook 28. A spring 29 may be used
to return the plunger to its rear position. The
magazine may have other parts not shown here
in but set forth more specifically in my United
States Patents Nos. 2,054,171 and 2,054,172. It
is sufficient for the purposes of the present inven
tion to statethat if rod 22 be depressed by mech
anism to be described a front reserve shuttle will
be released to fall into the space C and that when
rod 21 is depressed the bottom rear reserve shuttle
is moved forwardly into the compartment. Any
shuttle arriving in the compartment is ready to
be moved to the lay and into action.
'I'he means for actuating the rods 22 and 21
may comprise a changing box lever 30 having a
lifting ledge 3| and pivoted abouta fixed stud 32.
lI‘he forward end of this lever 30 is connected by
means of a two-part yielding link 33 to an up
wardly extending box rod 34 to support upper
Weaving box 35 normally in active position and
lower auxiliary-box 36 belowl the race and un
Fig. 4 is a view similar to a portion of Fig. 2
I1, respectively. The front stack of shuttles is
supported in' part by a lever I8 having a finger
I9 to pass under the bottom front shuttle. A link
20 connects lever I8 with a second lever 2| piv
A lifting lever 3_1 is also pivoted to stud 32
and is rocked by means of cam 42 -so that the
forward end thereof moves upwardly every sec 40
ond beat of the loom shortly after the active
shuttle is boxed on the shifting shuttle box side
of the loom. A dagger v38 is movably mounted
on the lifter- lever 31 and normally clears the
ledge 3| when rising, but is movable under ledge 45
3I by either of two trips r39 and 40, see Fig. 5,
so as to raise lever 30. The rear end of lever 30
is provided _with a lugA 4I which moves down
whenever the latjch 38 raises the forward end of
lever 30 and this lug has engagement with one 50
or the other of the hooks already described.
The .selecting mechanism for determining
which of the hooks is to become operatively re
lated with the stud 4I comprises a selector lever
43 pivoted as at 44 to a bracket 45 secured to 55
the stud 32 in fixed position. 'I'he upper end of
this lever is arranged to. guide the hooks so that
the same move backand forth with thev rocking
of the lever 43. When the lower arm 46 of lever
43 is pulled >to therleft by a. cable 41 moved by
the shifting boxesthe forward hook 28 is under
the stud-4*,I'ghbut when the cord or cable 41 is slack
enedair coil spring "482. attached to the lever 43
rocks the latter so that- thel hook 23 moves for
. wardly and'under tlieïstud 4I.
Rocking 'of the lever. >43> is operative through
shuttle, weft detector mechanism, loom stopping'
a rod 49 to move a slide‘50 on aguide rod 5I to
mechanism, and box motion parts together with a
vary the position of the trips 39 and 40 so that
four-cell gang of shifting shuttle boxes at the
70 side of the loom opposite the magazine. These`
parts. will be described after which the manner
in which they are associated with my present in
vention will be set forth.
Referring to the drawings, the loom frame I5
75 supports a reserve shuttle magazine M having
but one of them can be positioned at a time to
throw the latch 38 toward the ledge 3|. A sole
noid 52 is mounted on lever 30 and has a core
53 connected to a ro'cking trip 54 movable in a
vertical plane ñxed with respect to lever 30. The
parts are shown more'clearly in Fig.~ 13, where
the hub 55 of a carrier 5I! is shown as mounted 75
for sliding movement on rods 8| carried by lever
30,. 'I‘he carrier supports the latches 39 and 40
and when moved by rod I9 places one or the
other of the latches in vertical alignment with
5 the trip. 'I‘he solenoid acts to rock the latches
softhat the lower end of the latter will swing
from the normal inactive position at the right
over toward the edge to direct dog 39 into lifting
relation with the lever 30. The carrier .50 isnot
10 limited to the two positions corresponding to the
` two stacks of reserve shuttles in the magazine,
but is capable of additional sliding motion for a
purpose to be described.
The detector mechanism in this instance is
illustrated as a double prong electric feeler D,
see Fig. 1, fastened to a lever 60 and pivoted as
at 6| to a bracket 62 secured to and extending
forwardly from the magazine frame. Lever 60
1 and 10 where it will be seen that the usual form
of shipper handle 90 on shipper shaft 9| has the
lower end thereof connected with aknock-ofl’ rod
The latter is attached to -the upper end of
an arm 93 pivoted as at 94 to a knock-off housing
95. A rocking actuator arm 96 is moved by a cam
81 on bottom shaft 81 to have a risingand falling
motion on alternate beats of the Aloom to give
a ñnger 98 thereof >first a working and then a
non-working stroke. Arm 96 may move about 10
a pivot' 99 also carried by the housing 95.
A solenoid |00 located in the housing has a
core |0| which4 is normallyA down and opera
tively- connected to a transmitting link |02 piv
oted as at |03 to the arm 93 and having the 15
left end thereof normally below the path of the
iinger _98 when the latter has a working stroke.
Upon energization ofthe solenoid the core is
has a finger 63 which is connected to a tension
raised to lift th‘e link |02 so that the same lies
spring 64 operative normally to hold the detector
in the path of the finger 98, and as cam 91 20
gives the arm 06 a working stroke, the link
in rearward detecting position with a stopv screw
65 adjustable to determine the correctA position
of the prongs 66 and 61 of the detector.
The prongs 66 and 61« are normally so placed
is given a longitudinal motion to rock arm 93
forwardly and act through rod 92 to move the
shipper handle rearwardly or to the right in
forwardly with the active shuttle on the magazine
the position shown in Fig. 1 to stop the loom. 25
'I'he mechanism for stopping the loom just de
scribed may be similar to that shown in patent
side of the loom in box 35.
to Payne No. 1,873,465.
that they enter the active shuttle which is in the
upper box on alternate beats as the lay L moves
The detectors may
if desired move through- a binder 69 mounted on
» 30. the lay and not sharing the vertical motion of
An upright lever |05 pivoted to the loom- frame
carries a rod |06 which extends rearwardly to 30
the boxes. - The object in mounting the detector
have connection withr a spring |01 that nor
on a movable support is to permit the same to
be moved forwardly at the time of shuttle change
so that it will clear the incoming and outgoing
mally acts to hold said lever |05 rearwardly.
A clipl|08 adjustably mounted on the rod |06
is connected by means of a spring |09 to the
stem ||0 of a switch ||| to be closed when 85
the shipper handle is in vdriving position but
At the opposite end of the loom provision is
made for accommodating a series of weaving
shuttles, four being set forth „herein of which
but one only will be active at a time. These cells
are shown at 10, 1 I, 12 and 13 and accommodate
shuttles CS' CS2, SS' and‘SS’, respectively. As
contemplated at present each of these weaving
shuttles will return tothe same cell at the shift
ing shuttle box side of the loom and will ordi
5 narily enter the upper cell 35 at the opposite side
open when the shipper handle is in stopping posi
A tion.
Reference to Fig. 11 shows that the arm 96
is forked at its rear end, fork |16 cooperating 40
with the cam |15. The latter is adjustable
angularly on the bottom shaft so that the
loom can be stopped with the lay about in pro
tection position when the active shuttle is on
the magazine side of the loom or in box 35.
except on shuttle changing beats of the loom.
The several mechanisms just described of
These cells are mounted on a rod 15 which is
themselves form no part of my invention and
connected as indicated in Fig. 2 to the lower end
of a link 16 in any approved manner. 'I‘he latter
may be operated andconstructed in the usual
box lifter lever 1'|- pivoted as at 18 to an arm'19
movable about a ñxed stud 80. Stud 18 there--v
fore constitutes a floating pivot for the lever 11
As previously stated my present invention re 50
lates to means for replacing either of two of
the weaving shuttles when vexhausted and stop
ping the loom when one or "the other of the two
and by combining various movements of lever
remaining shuttles- is depleted.
nu' is adjustably connected to the forward end of a.
55 11 and arm 19 the llnk'16 is given four diiferent
Any well-known means may be used to _ac
complish this result, but I have shown herein a
pair of links 8| and 82 which are connected at
60 their upper ends, respectively, to lever -11 and
arm 19. ` These links are connected at their lower
ends to cranks 83 and 84, respectively, which
move about stub shafts 85 and 86, respectively.
'I'hese latter shafts are movable independently
of each other by a force derived from the bottom
The controls
to determine whether the shuttle changing 55
mechanism or the loom stopping mechanism
shall operate are exercised primarily by the pat
tern mechanism acting in the present- instance
through the box motion.
By referring to Figs. 2, 3 andf4, the box mo 60
tion shown therein is capable four po
sitions to the shifting shuttle boxes which are
determined by the positions of links 8| and
Shuttles CS’ and CS2 are those which are
shaft 81 and they are controlled as to the time
to be changed or replaced by fresh shuttles,
while shuttles SS’ and SS2 eiîect loom stoppage.
of their operation by pattern mechanism not
Whenever box 10 or 1| is opposite the race the
shown and also sliding teeth on mutilated gears. rear link 8| will be in high position, link 82
`For further details of the box motion reference _ being down when box 10 is in'picking position
70 may be had to patent to Lundgren No. 1,679,616. and up when box 1| is in picking position. When 70
By relations which `are well understood the up boxes 12 or 13 are to be aligned with the race the '
>and. down motions of the two links 8| and 82 can . link 8| will be down as shown in Fig. 4, and link
be combined to give the shifting shuttle boxes any
82 will also be down when box 12- is active and up
Ione of four positions. .
as shown in Fig. 4 when the lowest cell or box 13
'- ‘
The loom stopping mechanism is shown in Figs.
is in picking position. A simple control can be 75
pressing ñnger holds the‘latter yieldingly in rear
exercised because of the fact that link 8| is in
one position whenever the upper two boxes are
active and down when either of the lower two
boxes is active.
position to cause seating of hook 28 against the
_ rear of. slot |34.
The connections are such that when either of
the upper two shuttle boxes is active the hooks
will move back and forth as previously described
~The cable 41 which rocks the lever 43, see Fig.
1, extends from the shuttle changing to the shift
ing shuttle box side of the loom and is led up
wardly as shown in Fig. `2 to have adjustable con
nection with a positioning lever -|20. This lever
so that one or the other of them will be in op
A- disabling lever |24 has a forward arm pro
lever 43, holding the'hook 28 against the pin 4|.
erative relation with respect to the stud 4|, but
when the lever 43 is given its additional motion
has a rear arm |2| with a roll |22 to be held due tothe activity of either shuttle SS’ or SS“,
against a rotatable cam |23 moving with the the lever 43 will rock from the position shown 10
crank 84 by 4means of spring 48 acting through> in Fig. 6 tothat shown in Fig. 'l and the yielding
lever 43.
15 vided with a rollk |25 to coact with a cam |25.
secured to arm |2|. Lever |24 also has an ec
centric follower |21 to be guided in angular ad
justed position to coact with a second rotatable
' cam |28 moving with crank arm 83.
Cam |23
20 has a high dwell |29 and `a low dwell |30, while
cam |28 has a high dwell |3| and a low dwell |32.
Followe;` |21 can be adjusted to vary the position
of lever |24 by means of nut |21a. on screw |21b
carried by the disabling lever, see Fig. 3.
y`When either of the upper two cells is to be
active the link 8| will be raised and the cam |28
given such a position that roll |21 is on its low
dwell, thereby permitting roll |25 to move away
from the cam |26 by gravity. In this position
30 therefore roll, |22 and the positioning lever can
respond to lcam |23, being on the low dwell |30
when the boxesare in their lowest position and on
the'high dwell |29 when shuttle box 1| is in pick
ing position. With link 8| raised therefore the
lever 43 can have the same character of select
ing motions as have been heretofore described
in my United States Patent No. 2,054,171 and
From the description it will be seen that when
40 ever the shifting is conñned to boxes 10 or 1|
the carrier 56 will slide to place one or the other
of the latches 39 or 40 under the trip 54 and the
loom will operate as a two-color shuttle chang
ing loom, the shuttle changing mechanism being
in timed relation with the active shuttle CS’ or
CS2, as the case may be.
When either of the lower shuttle boxes 12 and
13 is to be active, however, link 8| is down in the
position -shown in Fig. 4 and cam |28 takes such
50 a> position as a result of the reversal of crank
arm 83 asto place follower |21 on the high dwell
|3I.- 'I'his causes >roll |25 to push cam |26 and
the positioning lever to the third or neutral po
finger |35 ywill move' forwardly relatively to the '
In this way the hooks are able to-accommodate
the third position of the lever 43.
As will be apparent fromFigs. 2 and 4 the
positioning lever |20 maintains its third position
due to the fact that link 8| is down and roll |22
is away from cam |23. 'I'he link 82 can there
fore rise and fall to render either of the lower
pair of shuttles active without disturbing the
position of the disabling or positioning levers.
The control circuit has two branches, one of
which goes to the shuttle changing solenoid 52,
and the other of which goes to the stopping sole
noid |00. In order to determine which branch
cf the circuits and therefore which of the sole
noids 52 or |00 shall be energized I provide a
controller positioned by lever 43.
'I'his controller comprises a box |40 carried by
the fixed bracket 45 and having pivoted thereto
as at |4| two circuit closing arms |42 and |43
carrying rolls |44 and |45, respectively, to con
tact with rocking camsl |48 and |41, respectively.
Each cam has a high dwell |48 and a low dwell
|49, but the dwells are staggered as shown in
Fig. 5 so that when 'a high' dwellof one cam
is elevating its corresponding roll the low dwell
of the other cam permits its roll to assume low
position. The two cams are rigid with a depend
ing arm |50 connected by an adjustable rod
|5| to the rocking `control lever 43. The con
nection between rod |5| and the lever may in
clude stud |52 adjustable along a slot .|53 in 45
lever 43. By means of this adjustment 'the
proper throw of the cams |46 and |41 may be
derived from the lever 43.
As seen in Fig. 8 the arm |42 carries Va con
tact screw |54 while the other lever | 43 carries
a similar contact screw |55.
These contacts are
connected to wires |56 and' |51. respectively, and
are each adapted for engagement with' a contact
sition shown in Fig. 4. This additional move
plate |58 insulated from and supported by the
motion to cable 41 and a corresponding shift housing |40. A wire |59 is connected to the
contact plate |58 and depending upon the posi
to the' lever 43.
The hooks 23 and 28 will occupy one of two tion of arm |50 one or the other of the contacts
positions when either of the upper pair of shut - |54 and |55 will be in electrical engagement with
the plate |58. "The relation of the parts is such,
60 tle boxes is in picking position and these hooks however, that but one contact can be made with
together- with the control lever 43 will under the plate |58 at a time.y
' those conditions operate as in my aforesaid Pat
shown in
ent No. 2,054,173. When the lever 43 is given Fig. 6 and the loom is set to position
exchange one or
its additional motion incident to the activity of
the other of the shuttles CS’ or CS2 contact |55
65 shuttle SS' or SS2 provision must be madey to will be elevated by cam |41 while ,contact |54
prevent damage to the hook. This result I ac
complish by means illustrated in Figs. 5, 6 and 7. will be down and touch plate |58. The dweil |48
of the cam |41 is suflicient to maintain this po
Hook 23 will ordinarily pass through'a hole |33 sition
whether box 10 or 1| is in picking position.
in the lever 43, see Fig. 15, and will therefore be
When either of the shuttles SS' or SS»2 is in
70 vpositively positioned by the latter when said lever action the parts will take the position shown in
‘ rocks in either direction. Hook 28, on the other Fig. 7, where it will be seen that contact | 54 is 70
hand, lies in a 4slot |34 which is open at the iront raised by cam |46 and contact |55 is down on
end thereof to receive a pressing ñnger |35. The plate |58. It will be seen thereforcthat the box
latter is pivoted at |38 to lever 43 and a tension motion shown in Fig. 2 not only selects which of
75 spring'l31 interposedbetween lever 43 and the two shuttles CS’ or CS2 shall be replaced by
reserve shuttles, but also determines whether. electrical connection between the bars |85 and
wire |56 and |51 shall be connected to platek |58. |86. For a further understanding of the struc
It is customary in those types of looms which vture and operation of the warp stop motion refer
are supplied with shuttle changing mechanisms ence may be had to prior patent to Payne No.
to employ an electrical warp stop motion. As 1,852,024.
The operation of the several parts may be un
already stated a warp stop motion is ordinarily
always capable of giving its indication and might derstood from the diagrammatic layout o1' the
therefore excite solenoid | 00 at the instant of various circuits shown in Fig. 9. It will be un
contact between the detector and a full shuttle derstood that the pattern mechanism not shown
it) should a warp thread break at that time. ' There
would result a misindication, which I prevent by
interrupting the warp stop motion circuit pe
riodically and during the interval that the weft
detector is in contact with the weft supply being
controls the box motion so that one or another 10
of the shuttle boxes may be opposite the race
on the lay L. Assuming that either of the shut
tles CS' or CS2 is active, the contact |54 will rest
on contact plate |58 and current will flow
through the following circuit when uncovered
Referring to Fig. 10, I have shown the loom . ferrule F of a bobbin B in the active shuttle is
frame I5 as provided with a bracket |60 on the
upper end of which is located a housing |6| sup~
porting two insulated spaced contacts |62 and
20 |63.
These contacts may be of resilient mate-~
presented to the detector: ground, wire |82, the
detector prong 61, ferrule F, prong 66, wire |59,
plate |58,'contact |54, (contact |55 being raised),
w'ire |56, shuttle changing solenoid 52, Wire |80, 20
rial and are mounted as set forth particularly in
Fig. 12 to be in vertical alignment with a con-y
binding post |90 of the switch |I|, closure |89
of the switch, binding post |91 of the switch,
tact closer |64. The closer is vertically adjust
wire |83, source of electric power P, and wire
able on a block |65 sliding between the blocks |86
25 of insulating material on which the contacts |62
and |63 are mounted. The block> derives its
vertical reciprocating motion from a lever |61
pivoted as at |68 to the bracket |60 and having
a roll |69 .which contacts with a cam or eccen
30 tric |10 on the bottom shaft 81.
It is to be understood that in the normal o-p
eration of the loom the active shuttle will be on
the magazine side every other beat of the>` lay,
and since the bottom shaft has a complete revolu
35 tion every other beat of the lay, the cam or
eccentric |10 will act to raise lever |61 once r`for
every alternate non-detecting beat of the lay and
will act to lower the block |65 on the intervening
detecting beats of the lay. The low point of the
|84 to the ground.
Current flowing in this cir
cuit will energize the solenoid 52 to throw the 25
latch 39 or `40 corresponding-to the indicating
shuttle preparatory to an operation of the shut»
tle changing mechanism.` So long as either of
shuttles CS' or CS2 is in action the contact |54
will be on plate |58 and if either of these shuttles 30
should present a depleted bobbin to the detector
the circuit just traced will be closed and an in
dication will be given through the selector mech
anism shown in Figs. 13 and 14. The slide of
the selector which is positioned by the rod 49 will 435
be either in the dotted or full line position
shown in Fig. 14 when the circuit alreadytraced
is closed. 'I'he relative positionv of the several
parts associated -with lever 43 will be in the po
40 cam or eccentric |10 is so set as to" eifect loweringl
sition shown in Fig. 6, where the showing in full 40
lines `is for shuttle CS2 and in dotted lines for
the feeler is in contact with the active shuttle
and the latter is on the magazine side of the
loom. At other times the contact closer |64 is
45 raised to complete a circuit between wires |1|
shuttle CS'.
of block |65 during thedetecting interval when
When the pattern- mechanism calls for a
change so that one of the shuttles SS’ or SS’. is
to b^e active there will be a reversal ofthe con-`
-and |12 which are connected, respectively, to the tacts contained in the box |40 and upon presenta
contacts |62 and |63. VA >pin and slot connectionl tionl of an exhausted shuttle to the detector the
designated generally at |13 may be employed to - following circuit> will be closed: ground, wire |82, ,
eifect reciprocation of the block |65 as the lever the weft detector, wire |59, plate |58, contact
|61 rises and falls. '
The bottom shaft 81 has secured thereto a cam
|15 which isipositioned for cooperation with a
fork |16 formed integral with the arm 96. The
latter may therefore be raised either by cam 91 55 for the normal warp stop operation of the loom,
or by cam |15 at a different point in the cycle
of loomI operations and responsive to the weft de
tector. Asseen in Fig. 10 the high points of
>these two cams are separated by a considerable
60 angle and it is for this reason that the rod 92
|55, (contact |54 now being up), wire |51, sole- .
noid |00 of the knock-off device, wire |8I, switch
| | I,? wire |83,> source of electric power P, and
wire |84 back to the groundf Current flowing in
this circuit does not energize the yshuttle chang
ing solenoid Ibut does excite the solenoid |00
which -controls the link |02. At a later timein 55
the operation ofthe loom this link will be actu-l
ated as already described to stop the loom with
the shuttle on> the drop box side. During the clo
sure of the second circuit the parts will be in
can be acted upon to stop the loom by a warp
the position shown in Fig. '7, and the carrier will ~ 60
fault with the lshuttle onthe magazine side of
be in the dot and dash position of Fig. 14, the
the loom or by a- weft~ indication through cam
|15 when the depleted shuttle SS’ or SS2 is on
structure being modified to permit the extra mo
tion where the latches are out of possible engag
the shifting shuttle box- side of the loom.
The warp stop motion isj not shown structurally
in the drawings but the essentiall parts thereof
ing position with the dog 38.
It -is to be understood that at the time the de
tector can close either of the two preceding cir
are indicated dîagramrnatically in Fig. 9, where
cuits,`the circuit closure |64 willl be Vspaced from
it will be seen that a contact electrode |85 is
70 inclosed by but insulated from a second contact
electrode |86. The latter is connected by wire
the contacts |62 and |63, and operation of the
|81 to the ground and both contacts extend
warp stop control will be temporarily prevented. 70
If a warp fault should occur at anytime when
the contacts. |62 and |63 are connected, that is,
through a slot in the upper part of a drop wire
at some time other than the detecting interval,
|88 which is Anormally held elevated by the warp
the following circuit will be closed: ground, wire
|81, bar |86, drop Wire |88, bar |65, wire |1I, con
75 W. Upon warp fault the drop Wire falls to eñ'ect
tact |62, circuit closure I“, contact |83, wire
|12, solenoid |00 of the knock-oi! device, wire
out loss of the indication, the return of the in
dicating shuttle to action immediately eñecting a'
shuttle changing operation of the magazine with
out the necessity of a repeated indication.' When
|8i, switch |||, wire |83, source of electric power
P, and wire |84 back'to the ground. Current
flowing in this circuit will set the de A the shuttles SS’ or SS2 become active the latches
vice to stop the loom with the active shuttle on are moved o_ut oi' register with the dog so that
the magazine side of theloom.
had either latch been set by one of the shuttles
It is to be understood that switch ||| is in the CS' or CS2 no premature indication of the mag
position shownl in Fig. 9 so long as the loom is ‘ azine could result.
10 running but when the shipper handle moves to
Having thus described my invention it will be 10
stopping position spring |01 acts to permit open
seen that changes and modifications may be
ing of switch ||| so that whether the loom be made therein by those skilled in the art without
stopped by the warp stop motion or the detector, departing from the spirit and scope of the-in
current will not ‘flow through their respective vention and I do not wish" to be limited to the de
15 circuits after the loom has come to rest.
tails herein- disclosed, but what I claim is:
From the foregoing it will be seen that I have
1. In a loom having a plurality of shifting
provided a loom operating with a plurality of shuttle boxes, a box motion to move any one of
shuttles certain of which are replaced by a shut
the boxes to active position, a multi-color shut
tle changing mechanism and others of which tle changing mechanism, a cam movable by the
20 eñect loom stoppage upon depletion and that a box motion, a lselector for the shuttle changer 20
single detector cooperates with all the weaving controlled by the cam when certain of the shut
shuttles. It will further be seen that provision tle boxes are active, and a second cam movable
is made for stopping the loom with an active de
by the box motion to interrupt control between
pleted shuttle in the shifting shuttle boxes, there
the first cam and the selector when certain other
by giving the weaver a visual indication as to
the cause of loom stoppage. It will also be seen
that I have provided a warp stop motion effec
tive to stop the loom upon warp fault when the
active shuttle is on the magazine side of the
30 loom. In this connection it should be noted
that three conditions exist in the loom, namely,
a depleted weaving shuttle of one group will ef
fect stopping of the loom upon arrival at the
shifting shuttle boxes, a depleted shuttle of an
other group will be replaced at the magazine side
while the loom continues to run, and the loom
will come to rest with an active shuttle on the
magazine side upon occurrence of a warp fault.
Furthermore, it will be noted that the warp stop
40 motion is so controlled that it cannot act through
the knock-off device during the weft detecting
interval, provision thereby being made to prevent
the warp stop motion from effecting loom stop
page should eitherof shuttles SS’ or SS2 present
a full supply of weft to the detector. Another
feature of the invention is the provision of
means actuated through a pattern mechanism
controlled device, such as a box motion, to deter
mine which of two circuits can be closed by the
50 ' weft detector to effect either shuttle replacement
or loom stoppage. The hooks which coact with
the shuttle changing mechanism are modiñed
with respect to their previous arrangement so as
to permit movement of the control parts to a
55 third or neutral position when either shuttle
SS' or SS2 is active. The cams 91 and |15 are
so disposed angularly with respect to the bottom
shaft 81 that they give the knock-off device two
working strokes for each two pick cycle of the
60 loom, one cam to assist stoppage effected by the
weft detector and the other acting in conjunc
tion with the warp stop motion. Furthermore,
the selector mechanism for the shuttle changer
shown more particularly in‘Figs. 12 and 14 has
65 provision for no additional motion beyond that
heretofore employed to permit the latches to
move out of possible operative relation with re
of the shuttle boxes are active.
2. In a loom having a plurality of shuttle boxes,
a lever connected to said shuttle boxes, a pair of
actuators for the‘lever, a cam moving with each
actuator, a multicolor shuttle changing mecha
nism, a selector for the shuttle- changing mech 30
anism controlled by one of said cams and mov
able thereby to any one of a plurality of posi
tions less than the number of shuttle boxes when
certain of said shuttle boxes are active, and
means `actuated by the other cam to move said 35
selector out of control of the ñrst cam when
certain other of the shuttle boxes are active.
3. In a loomhaving a plurality of sluiting shut
tle boxes, a multi-color shuttle changing mecha
nism, a pair of actuators for the box lever, a cam 40
moving with each actuator, each cam having a
high and a low dwell, a selector for the shuttle
changing mechanism controlled by one of said
cams when the shuttle boxes controlled by the
corresponding actuator are active, and means op 45
erated by the other cam to move the selector out
of control of the first cam when other of the shut
tle boxes are active.
4. In a loom having a plurality of shifting
shuttle boxes, a box motion including a lever ca 50
pable of moving any box to active position, a pair
of independently movable actuators for the lever,
movement of the lever by one of the actuators
rendering certain of the shuttle boxes active and
movement of the lever by the other actuator mak 55
ing certain other of the shuttle boxes active, a
cam connected to each actuator and moving
therewith, a multicolor shuttle changing mecha
nism, a selector for the shuttle changing mecha
nism controlled by one of the cams when the ac
tuator corresponding thereto moves the lever to
position certain of the shuttle boxes actively, and
means moved by the other cam when the other
actuator corersponding thereto moves the lever
to render certain other of the shuttle bo'xes ac 65
tive, said means moving the selector out of con
trol of the first cam.
spect to the dog which causes rising of the shut
5. In a loom having a plurality of shifting shut
tle changing boxes at the magazine end of the tle boxes, a box lever connected to the shuttle
boxes capable of moving any shuttle box to ac 70
70 loom. In connection with the selector mecha
`nism it should be noted that either of shuttles -tive position, a pair of actuators movable inde
CS' or CS2 can give an indication of weft ex
pendently of each other and each capable of
haustion while on the magazine side of the loom
and then become inactive for a period during
75 which either of shuttles SS’ or SS2 is active with
causing motion of the lever, one of said actuators
capable of moving the lever to two different po
sitions, and the other actuator capable of mov
- 2,135,155
ing the lever to two other positions, a cam con
nected to and moving with each actuator, a mul
said elements movable from non-indicating to
ticolor shuttle changing mechanism, a selector for
the shuttle changing mechanism controlled by one
actuator to the selector mechanism to give said
of the cams, and means moved by the other cam
to move said selector out of control of the first
out of control of the shuttle changing mechanism
6. In a loom having a plurality of shifting
shuttle boxes, a lever connected to the boxes and
10 capable of moving any box to active position, a
multicolor shuttle changing mechanism, two ac
tuators for the lever, each actuator capable of
giving the lever two diiïerent positions and the ac
tuators together capable of giving the lever four
15 different positions, a selector for the shuttle
actuator additional motion to move the elements
when certain of the shuttle boxes are active, and
means to return the selector to the control of
the iirst actuator after control of said selector
by the second actuator is relinquished.
10. In a loom operating with a plurality of 10
-shuttle boxes any one of which may become ac
tive, said boxes cooperating with a plurality of
weaving shuttles, a weft detector to detect the
condition of weft in any active Weaving shuttle,
a shuttle changing mechanism to replace certain 15
changing mechanism, means moving with one of
of said Weaving shuttles in the shuttle boxes, con
said actuators to control and move the selector to either of two positions, and other means
nections between the detector and the shuttle
changer to cause the latter to replace any one
moving with the other actuator to move the se
of a given number of weaving shuttles less than
20 lector out of control of the iirst means, the first
means moving the selector when certain of the
shuttle boxes arefactive and the second means
moving the selector out of control of the first
means when other of the shuttle boxes are ac
indicating position, connections from the second
7. In a loom having a plurality of shifting shut
tle boxes, a box shifting lever capable of moving
the total number of weaving shuttles in said 20
shuttle `boxes when indicating weft exhaustion
through the detector, loom stopping mechanism,
and connections between the detector and said
stopping mechanism to render the latter eiîe’c
tive to stop the loom when the detector indi -25
cates exhaustion of weft in the other weaving
shuttles which are not replaced by the shuttle
changing mechanism.
any shuttle box to active position, a pair of ac
11. In a loom having a plurality of shifting
tuators for the lever, each actuator capable of
30 moving the lever to two positions, multi-color shuttle boxes cooperating with a plurality of dis
shuttle changing mechanism, a selector for the tinctive weaving shuttles, multicolor shuttle
changing mechanism to supply reserve shuttles
shuttle changing mechanism, and two cooperat
corresponding to certain of the weaving shuttles
ing levers one of which is connected to and capa
ble of moving the selector mechanism, means only, loom stopping mechanism, a weft detector
35 moving with one of the actuators'to move one o1 _ to detect the condition of weft in any active 35
the levers and cause motion of the selector, and
means moving with the other actuator to cause
the other lever to move said one lever out of con
trol of the ñrst means when certain of the shut
40 tle boxes are active.
8. In a loom having a plurality of shifting
shuttle boxes, a box lever capable of moving any
shuttle box to active position, a pair of actuators
for the lever, a multicolor shuttle changing mech
45 anism, a selector for the shuttle changing mecha
nism, cooperating levers one of which is con
nected to and capable of moving the selector, a
cam.moving with each selector,`each cam hav
ing .a high and a low dwell, one of said cams to
50 move said one of the levers While the other lever
is on one of the dwells of the other cam when
certain of the shuttle boxes are active, said other
cam to move said other lever when the latter
moves to the other dwell of said other cam to
55 move the first lever out of control of the ñrst cam
when certain other of the shuttle boxes are active.
9. In a loom operating with a plurality- of
shuttle boxes any one of which may become ac
tive, a multicolor shuttle changing mechanism to
60 supply a plurality of types of reserve shuttles less
in number than the number of shuttle boxes, a
shuttle box motion having two independently
movable actuators to move any shuttle box to ac
tive position, selector mechanism for the shuttle
65 changing mechanism movable to a plurality of
control positions with respect to the shuttle
weaving shuttle, connections between the de
tector and the' shuttle changing mechanism to
cause the latter to replace any of said certain
weaving shuttles when depleted, and other con
nections between the detector andthe stopping 40
mechanism to cause the latter to stop the loom
when the shuttles other than those replaceable .
b_y the shuttle changing mechanism indicate ex
12. In a'shuttle changing loom having a plu 45
rality of shifting shuttle boxes any one of which
may become active and operating with a plu
rality of distinctive weaving shuttles, a weft de
tector to determine the condition of and indicate
exhaustion of weft in each weaving shuttle, a
box motion to move any active shuttle box to
active position, loom stopping mechanism, a mul
ti-color shuttle changing mechanism to replace
certain of the‘weaving shuttles, selector mecha
nism for the shuttle changing mechanism to de 55
termine the type of reserve shuttle to be supplied
thereby, distributor means connected to the de
tector and operated by the shuttle box motion, a
control from the distributor means to the stop
ping mechanism, and a second control from the 60
distributor means to the selector, all indications
of exhaustion given by the weft detector being
communicated through the distributor means,
the latter when in certain positions effecting loom
stoppage by the first control means when cer 05
tain of the weaving shuttle boxes are active, and
the distributor means when moved to diiïerent
changing mechanism, means to connect one of
positions by the shuttle boxes communicating
the actuators to the selector mechanism to move
the latter to a plurality of positions, indicating
70 elements carried by the selector mechanism to
the indication of the weft detector through the
second control means to the selector when other.
shuttle boxes are active.
control the shuttle changing mechanism, one
element for each position of said one actuator.
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