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Патент USA US2126060

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Aug. 9, 1933,
Filed Sept. 27, ‘1935
7 Sheets-Sheet 1 .
Richard Greerdeai Turner
Aug“ 9, 1938..
Fivled Sept. 27, 1935
7 Sheets-Sheet 2
HI mm ‘
Richard GreemeaiTumer
‘ Attbrneys
Aug. 9,1938.
Filed Sept. 27, 1955
'7 Sheets~$heet 3
Rhzhard breenhai Turner
Aug. 9, 1938.
Filed Sept. 2'7, 1935
‘7 Sheets-Sheet 4
Fla. 6
FIG. 5
Invenk or
Richard Breemea'i Turner
Aug. 9, 1938.
Filed Sept. 27, 1935
7 Sheets-Sheet 5
Richard Greevdea? Turner
Aug. 9, 1938.
Filed Sept. 27, 1935
F1 2-‘;
7 Sheets-Sheet 6
nven or
“ I?
R‘whard Greerdea’r Turner
" “mg/WWW
Aug' 9, 1938.
Filed Sept. 27, 1935
7 Sheets-Sheet 7
H) Position
Patented Aug. 9, 1938
Richard Greenleaf Turner, Worcester, Mass, as
signor to Crompton & Knowles Loom Works,
Worcester, Mass, a. corporation of Massachue
Application September 27, 1935, Serial No. 42,375
14. Claims.
and the color selector to cooperate with a shuttle
changer looms and it is the general object of the
invention to provide a loom which is preferably
releasing mechanism and capable of retaining the
setting which will call for replacement of an
exhausted shuttle which has passed out of action
immediately after giving indication of weft
_ continuously running and capable of replacing
any one of several weaving shuttles upon exhaus
tion of weft.
So far as I am aware shuttle changing looms
A further object of the invention relates to im
which have been used commercially have been
proved means for advancing a reserve shuttle
limited to two-color work so far as the shuttle
from the magazine to the shuttle changing box
When the loom operates with a Knowles head
motion to control the boxes and harness the set—
ting of the color selection chain a whole pick
ahead of the box chain would result in movement
of the selector mechanism during the detecting
changing features are concerned. Certain pat
terns call for a greater variety of color than can
be obtained‘ with two shuttles and it is an impor
tant object of my present invention to provide a
loom which will automatically exchange a de
pleted shuttle for a fresh shuttle with reserve
weft, the loom to operate with more than two
shuttles, four being shown in the drawings
attached hereto.
In a continuously running loom it is essential
that the time intervals allowed for the various
operations be su?iciently long to render them
commercially dependable and in providing a loom
wherein the intervals are of proper length I find it
,‘ desirable to secure the indication of weft exhaus
tion and operate the color control comparatively
early in the shuttle changing operation. It is a
further object of my present invention to provide
a pattern mechanism wherein the indication for
the shuttle changing mechanism will be at least
one pick earlier than the indication for the ordi
nary box lifting mechanism.
It is a further object of my present invention to
provide the reserve shuttle receiving mechanism
with a box constructed somewhat differently from
those heretofore employed in that it includes in
its construction a rear wall which assists in prop
erly placing a shuttle which is moving from the
magazine toward active position. As a continua
tion of this idea it is a further feature of my
40 invention to provide a box cover which shall have
a shuttle grasping wall or lip to engage a rear
surface of the shuttle and positively move the
latter forwardly as the lay leaves shuttle chang
‘ ing position.
(01. 132F232)
This invention relates to multi-color shuttle
It is another object of my present invention to
interval, thereby preventing correct cooperative
relation between the active shuttle being detected
and the selector. It is a further object of my
invention to effect a delay in the selector move
ment until time has been given the detector to 20
indicate exhaustion. The speci?c means for ac
complishing this result shown herein includes a
selector gear cylinder set late with respect to the
box _ gear cylinder, the late setting permitting
cooperative relation between the selector and 25
active shuttle during detection, but causing
selector movement immediately after detection.
With these and other objects in view which will
appear as the description proceeds, my invention
resides in the combination and arrangement of 30
parts hereinafter described.
In the accompanying drawings, wherein a con
venient embodiment of my invention is set forth.
Fig. 1 is an end elevation of a loom having my
invention applied thereto,
Fig. 2 is an enlarged detailed view of the indi
cation storing and reserve shuttle releasing mechanism shown at the bottom of Fig. 1,
Fig. 3 is a plan View of the structure shown in
Fig. 2,
Fig. 3,
Fig. 5 is a fragmentary view showing the lower
end of the magazine shown in Fig. 1, but on an ,
enlarged scale, illustrating the shuttle release 45
provide an improved form of reserve shuttle re
leasing mechanism which shall include in its con
struction an element capable of having two differ
Fig. 5,
ent motions, one of which is normal and the other
of which occurs on shuttle releasing beats of the
loom and is dependent for its operation on inter
shuttle magazine for shuttle changing boxes,
ruption of the ?rst movement.
A still further object of my present invention is
to provide an improved indication storing mecha
55 nism under the joint control of the weft detector
Fig. 4 is a detailed vertical section on line 4—4 of
Fig. 6 is a horizontal section on line 6-6 of
Fig. '7 is a vertical section through the reserve
showing the mechanism for advancing a reserve
shuttle from the magazine toward the shuttle
receiving mechanism,
Fig. 8 is a front elevation taken in the direction
of arrow 8, Fig. '7,
Fig. 9 is a view similar to certain parts shown in
the lower part of Fig. 1, but indicating different
Fig. 10 is a rear elevation of the head motion
located at that end of the loom opposite the mag
azine end shown in Fig. 1,
Figs. 11 and 12 are diagrammatic views show
ing parts of the color indication in different posi
Fig. 13 is a plan view of a representative type
of pattern chain to be used with the mechanism
shown in Fig. 10,
Fig. 14 is a diagrammatic front elevation of the
organized loom. showing the connection between
15 the color indication at the left end and the
magazine at the right end,
Fig. 15 ‘is a top plan view of the head motion,
Fig. 16 is a side elevation of the driving gear
for the head motion,
Fig. 17 is a detached perspective diagrammatic
view of the box and color cylinder gears,
Fig. 18 is a diagram showing the time relations
of the several parts of the invention, and
Fig. 19 is a detail plan view in the direction of
25 arrow I9, Fig. 7.
In the following description I will set forth
acceptable forms of the color selecting mecha
nism in Figs. 10 to 13, the weft detecting mech
anism at the top left part of Fig. 1, the indication
storing mechanism under the joint control of the
color selector and weft detector in Figs. 2, 3 and 4,
the reserve shuttle selector controlled by the color
selector in Figs. 5, 6 and 14, the reserve shuttle
release mechanism and magazine in Figs. 1, 5, 6
35 and 9, the reserve shuttle advancing mechanism
in Figs. 1, '7 and 8, and the shifting boxes adjacent
the magazine, shown in Fig. 1, which constitute
the reserve shuttle receiving structure.
In general, it may be stated that the type of
40 loom to which I have applied my invention em
ploys shifting shuttle boxes, four in the present
instance, at the left end of a loom, while the
shuttle changing mechanism and the weft de
tector are both located at the opposite or right
hand end of the loom, see Fig. 14. As the lay
reaches approximately its mid position when mov»
ing forwardly, or at bottom center, with the ac
tive shuttle at the drop box end, the box motion
will start the shifting of the drop boxes, and
50 shifting is completed when the lay has reached
approximately its mid position on the rearward
stroke thereof in time for picking, or at top cen
ter. Approximately one-quarter of a pick later
when the lay is in back center position the re—
55 serve shuttle will be placed in a temporarily
raised shuttle box under the magazine, while the
active depleted shuttle will approach a lower box
which has been raised into alignment with the
shuttle race for the purpose, boxing occurring
60 approximately at bottom center or shortly there
There will then occur a downward shift
of the temporarily raised pair of shuttle boxes
so that at the time of picking, half a beat after
the shift starts, the lay will be on top center
65 with the fresh reserve shuttle in picking position,
the exhausted shuttle having been expelled from
its box when the lay started its backward move
ment after reaching front center and prior to
picking of the fresh shuttle.
Referring particularly to Fig. 1, the loom frame
F supports a rocker shaft R about which the lay
L swings. The lay has a lay end I provided with
being shown in front center position in Fig. 1.
Shaft 5 is geared in the usual manner to the bot
tom shaft 6 in a 2 to 1 ratio, the top shaft making
a revolution for each beat of the loom, While the
bottom shaft rotates once in two beats. The
frame supports a magazine M which in turn
carries a weft detector W and there are also pro
vided supports for the various mechanisms here
inbefore enumerated for coordinating the move
ments of the magazine to the end that a reserve 10
shuttle may be supplied to correspond with the
depleted shuttle which is about to be picked from
the drop box end of the loom toward the maga
As shown in Fig. 14 I provide a gang of boxes G 15
having four cells I, II, III and IV any one of
which may be aligned with a shuttle race ‘I of
the lay for as many pairs of picks as desired.
While there are two shuttle boxes at the right
hand end of the loom, as will be set forth more 20
in detail hereinafter, yet only one of these boxes
is normally active.
Head motion
Referring to Fig. 16, the loom frame F supports 25
an upright shaft 8 carrying at its bottom a bevel
gear 9 meshing with a similar gear ID on a stub
shaft ll suitably supported. An eccentric gear l2
on the stub shaft meshes with a second eccentric
gear I3 on the top shaft, and since the crank 30
shaft turns at a constant rate, the stub and up
right shafts will turn with variable speeds.
The upright shaft has top and bottom bevel
gears l4 and I5, respectively, meshing with sim
ilar gears rotating with top and bottom cylinder
gears H and K, respectively, and hence the latter 35
share the variable rate of rotation of the upright
shaft. Each cylinder gear has a box mutilated
gear section I 6 and a similar color section II,
the box section having teeth l8 and a blank area 40
[9, while the color section has teeth 2|] and a
blank area 2!. The blank area of the color sec
tion has a zone 22 extending a space equal in this
instance to six teeth beyond the corresponding
area of the box section, having respect to the di 45
rection of rotation, so that the color section is
later in coming to operative position than the box
section by a time corresponding to six teeth, see
Fig. 17. Each cylinder gear, with its box and
color sections, rotates once for each beat of the 50
loom, although this is not a necessary relation.
The head frame 25 supports a heel pin 26 on
which are pivoted two box vibrator levers 21 and
28, respectively, and each vibrator lever carries
a vibrator gear 29 attached to a connector 30. 55
The connectors operate box lifting levers 3i and
32 operatively connected to vibrators 21 and 28,
respectively, and lever 3| carries a sheave 33 for
chain 34 connected to lever 32. Levers 3| and 32
are pivoted at 35 and 36, respectively, and operate 60
in well known manner to give the boxes G four
different positions by the chain 34 which is at
tached to them. The box vibrators are operated
as usual and can place any one of the shuttle boxes
in picking position.
The eccentric gears are set so that the cylinder
a plate 2 slotted at 3 to receive a sliding picker
not shown. The lay moves back and forth in the
sections are moving at their slowest rate when the
lay is on bottom center and fastest at top center,
and furthermore, the box tooth section I8 is in
position to start moving the boxes at approxi 70
mately bottom center, that is, slow time for this
particular setting of the head. By this relation
a relatively large amount of lay motion is pos
sible with a small angular motion of the color
75 loom by connectors 4 operated by the top shaft 5,
section, and this timing, coupled with the color 75
pattern chain to be described, insures correct 00
operative relation between the exhaustion indi
cating shuttle and the magazine control parts
while at the same time affording a relatively long
interval in which actual exchange of shuttles
can be effected.
Color selector
If shifting of the color selector. and indication
10 storing controllers were synchronous with box
shifting, the indication would be too late, since
it would not be completed until picking from the
box end, or only one-quarter of a pick before the
back center position where the reserve shuttle
should be ready to drop into the temporarily
15 raised box. The selection must therefore come
earlier, but if the time be set ahead one whole
pick, the indication, storing mechanism would be
shifting at front ‘center when the feeler detects,
20 with resultant confusion of colors in the shuttle
change. It is necessary therefore to delay shift
ing of‘ the indication storing mechanism until
after the feeler has had a chance to indicate
exhaustion and set a storing indicator corre
25 sponding to the shuttle giving the indication.
The color selector and storing mechanism must
remain in cooperative relation with the active
shuttle being detected until the feeler has had a
chance to effect indication of exhaustion, after
Bl as shown in Fig. 14, across the loom, upwardly
to the right of sheave 62, and over to the right of
a third sheave 63. The connector is attached as
at 64 to the upper arm of a bell crank lever 65
pivoted to the magazine frame and having a
horizontal arm 66, see Fig. 6. A tension spring
Bl’ having one end attached to a supporting
bracket 68 rigid with the loom frame is attached
to arm 64 and normally exerts a pull on the con- ‘
nector 66. The latter is therefore constrained to
move to the left of Fig. 6 by forces derived from
levers 41 and 48, and to: the right by the spring
6‘! when permitted to have such motion by the
positions of said levers 41 and 48. Spring 61 also
moves a color slide to be described by a force
transmitted through lever 65.
In Fig. 13 I show a continuously running pat
tern chain P having four spaces for rolls. The
chain comprises cross bars 69 connected by links
10 and fed over‘ a chain shaft ‘H shown in Fig. 15.
The chain is assumed to move in the direction of
arrow a in Figs. 10 and 13 and‘ longitudinal rows
12 and T3 are occupied by the rolls ‘M and 15
which position vibrators 21 and 28 to control the
usual box motion of the loom. The high rolls
14 and low rolls ‘[5 in these two rows 12 and '13
have been set forth to give a varied sequence of
motions for the gang of boxes G to produce a
desired pattern.
movements preparatory to release of a re
30, which
serve shuttle can take place, such movements in
The other auxiliary rows 16 and 11 which I 30.
have added comprise high color rolls ?8 and low
‘volving possibly a’ changed setting of parts due color rolls 19 in the same order as the rolls in
to anticipated return to action of a shuttle which ' rows 12 and 13 except that the rolls on the auxil
indicated exhaustion just before becoming inac
iary added rows ‘I6 and TE will have the same se
as those in rows 12 and 13, respectively, 35.
35, The desired timing may be obtained by building quence
but will be one bar ahead thereof. In other
the chain so that the selectorrolls are one pick words, the ?rst high color rolls 18 at the right and
ahead of the corresponding box controlling rolls, bottom of Fig. 13 in rows 16 and ‘ll and located on
and then delaying effective engagement of the the second cross bar correspond to the high box
rolls ‘M in rows 12 and 13 which are to become 4:0
40 selector cylinder gear with the selector vibrator
gear until the feeler has had time to indicate. operative one pick later. By this phase displace- '
The vibrator gear must have a certain motion to
ment the rolls of the auxiliary rows give their
unlock the connector during which there will be indications to their corresponding vibrator gears
no appreciable motion of the color control parts, 45 and 46 one pick before the corresponding box
and furthermore, the eccentrics maybe set so rolls indicate the box motion.
“ that the slowest part of the vibrator gear motion
The high rolls ‘l8 and low rolls 19 on rows 16
comes before the detector operates. These various and ‘H are capable of giving the levers 41 and 48
delays added together give the time required to
four different relative positions with correspond
allow the 'feeler to set a storingindicator before
the color selector has had any considerable mo
tion. I wish it to be understood, however, that I
am not limited to the particular timing due to the
setting of the eccentrics shown, since I have
demonstrated that the slow time for the head may
ing rocking of the color control lever 50 to as
many diiferent positions. In Fig. 10 both levers 50
4'! and 48 are thrown to the left and the ?oating
lever 53 is therefore in its left-most position cor
responding to the low position for connector 60
with the drop boxes down and cell I active as
indicated in Fig. 14. In Fig. 12 lever 48 has been 55
moved to the right while lever 4'? remains to the
left, these positions being indicated in full lines,
from which it will be seen that the pivot 56 has
been moved to the next position to the right from
the one shown in Fig. 10. Also, in Fig. 12, cer
occur when the lay is in other positions than that
55 ‘ speci?ed. The color selector on the head motion
will now be described in connection with Figs.
10, 11 and 12.
Two other vibrator levers 45 and 45 for the
color indication are operatively connected by
means of vibrator gears 3'! and connectors 38 to
levers 4'5 and 48, respectively, moving about pivot
36. Each of the levers 41 and 48 is capable of
moving to either of two extreme positions, as.
indicated in Fig. 12, depending upon the direction
65, .
of rotation of the associatedvibrator gears.
A color selector control lever 50 is pivoted at 5|
to the head framerand has a depending arm 52
which is pivoted to a floating lever 53 at 54. The
70 upper end of lever 53 is attached by top link 55
to selector lever ll‘! at 56, while a bottom link 51
connects the‘lower end of the lever to the other
color selector lever 48 at 58. An upper arm 59
of the lever 50 is attached to a depending con
75, nector 60 which extends downwardly under sheave
tain parts are indicated in dotted lines to as
sume reversed positions for levers 41 and ‘38, the
?oating lever 53 thereby being given its next step
to the right. In Fig. 11 both levers Q’! and 48
have been thrown to the right and the center 54 65
is therefore in its right-most position with the
result that the color control lever is given its ex
treme counter-clockwise position to move con
nector 60 to its upper limit. This corresponds
to the placing of cell IV in active position. The 70
advance movement of lever 59 effected by the re
versal of the‘position of the levers 41 and ‘38 in
dicated in Fig. 12 is due to the fact that the links
55 and 5'! are connected to said levers at different
distances from the common axis 36. The full line 75
position of Fig. 12 coincides with the activity of
box II while the dotted position corresponds to
action on the part of box III.
The indication given by the high and low box
rolls on rows ‘I2 and ‘I3 must be completed before
the time in the loom cycle for commencement of
box shifting. The latter ordinarily starts with
the lay at bottom center on the pick which car
ries the active shuttle into one or another of the
10 cells of the drop boxes, that is, indication from
the pattern chain is completed before the shuttle
is boxed "at the box end. of the loom.
as the color rolls on the rows ‘I6 and, ‘II are a
pick ahead of the box rolls they complete their
15 indication when the active shuttle is boxed on the
plain or magazine end of the loom opposite the
drop boxes. The color vibrators and gears are
therefore placed when the lay is moving forwardly
and the active shuttle is boxed under the maga
20 zine.
The previous indication corresponding to
the active shuttle must be retained, however, until
the detector can'operate, arid this short delay is
effected by the location of tooth section 20.
The box cylinder picks up the box vibrator gears
25 at a bottom center, or at protection, and this
would be the time the color cylinder would en
gage the color vibrator gears, but as previously
explained, this would interfere with the weft de
By having the zone 22 of sufficient length
30 it will be passing by the color vibrator gears while
the lay moves the active shuttle forwardly to the
detector, and the tooth section 20 will not en
gage the color vibrator gears until after the de
tector to be described has had an opportunity to
indicate weft exhaustion. This engagement will
begin with the lay at or near front center, and
will continue during approximately half a beat,
so that the lever 50 will be given its full throw
by the time the lay reaches back center with the
40 active shuttle traveling toward the drop boxes.
At this time, therefore, the arm 66 will have had
time to assume a new position and give rod 8|
a new vertical setting. Rod 8| rises when the
boxes are to have an up shift and descends when
the boxes are to drop.
given in connection with the color selecting mech
anism that the detector indicates exhaustion of
weft with the lay on its front center position be
fore the color selecting mechanism has moved
appreciably, after which the selector moves. It
will be seen that this result is accomplished by a
single feeler mounted to permit selective shuttle
change as distinguished from previous construc
tions wherein the detector mechanism was unable
to detect the active shuttle. The weft detector 10
shown herein may if desired be substantially the
same as shown in my co-pending application Se
rial No. 667,464 where the detector is claimed.
Indication storing mechanism
Lever 94 carries a second rod I 0| parallel to
for a sliding yoke I02 pivotally connected to a
positioning rod I03, see Figs. 2, 3 and 4. The
latter is connected to a bell crank lever I04 piv
oted as at I05 to a stand I06 ?xed to a station
ary stud I 0'! which serves also as a pivot for lever
94. As shown in Fig. 1 the lever I04 is connected
to the lower end of rod BI and it is by the con
nection just described that the yoke slides along
rods I00 and IOI in response to changing posi~ 25
tions of rod 8| induced by the altering positions
of the parts shown in Fig. _10. In other Words,
the yoke has positions corresponding to those of
the cells of the drop boxes illustrated in Fig. 14. 30
The yoke carries a pivot rod I08 on which are
mounted four indication storing elements I09,
IIO, III and H2. These elements are similar
and each includes a depending ?nger II3 for en
gagement with a dog H4, and each element fur
ther has a head II5 slotted to receive a setting
latch I I6 pivoted to the head at I I ‘I. One end
of each latch as indicated at I I8 is capable of
moving into vertical alignment With the bent end
I I 9 of the trip 99, while the other end of the latch 40
is formed with an abutting surface I20 to engage
a stop rod I2I carried by the sliding yoke. A
Weft detector mechanism
spring plunger I22 is operative to hold each in
dication storing element yieldingly in the posi
tion shown in full lines in Fig. 4, a stop bar I23
limiting movement of the heads.
The weft detector mechanism W is mounted on
the magazine and therefore is in a position to de
with the movements of the pattern chain one or
, tect the active shuttle when the latter is on the
50 magazine side of the loom. A forwardly extend
ing arm 85 secured to the magazine frame has
pivoted thereto a lever 86 as at 87, the lever be
ing held against an adjustable stop screw 88 by a
tension spring 89. The lower end of lever 86 car
‘ ries a two-prong electric detector 90 from which
lead tWo wires 9| and 92. The shuttles are pro
vided with bobbins having metallic ferrules nor
mally covered by weft, but upon approach of
weft exhaustion the ferrules are uncovered to
60 permit electric connection between the prongs 93,
whereupon wires 9I and 92 are electrically con
A changing box lifting lever 94 carries an up
standing horn 95 on which is mounted a solenoid
65 96, one side of which is connected to wire 92 and
the other side of which is connected by a wire.
91 to a source of electric power E which is also
connected to wire 9|. It is apparent that upon
exhaustion of weft in a shuttle S, solenoid 96 will
be energized with the lay in front center posi
tion. Energization of the solenoid'will lift arma
ture 98 pivoted to a trip 99. The latter is pivoted
to move around rod I00 supported as indicated
in Fig. 3 on the lever 94.
It will be seen with reference to the description
rod I00 and together these rods afford support
The yoke slides with respect to the trip so that
another of the elements I09, IIO, III or II2 be
comes operatively relatable to the trip, and upon
energization‘of the solenoid as already described 50
the trip will be raised to engage the end II8 ver
tically aligned therewith and corresponding to
the weaving shuttle which happens to be at the
magazine side of the loom and depleted.
Energization of the solenoid will rock the se 55
lected member II6 about its pivot to unseat the
corresponding surface I20 from the stop rod I2I,
thereby unlocking the associated element, and
further upward movement of the trip moves the 60
selector element from the full to the dotted line
position shown in Fig. 4 against the yielding
action of the spring plunger I22, where the lat
ter will hold the tripped setting element as long
as needed. If the indicating shuttle should 65
move out of action upon its return to the drop
boxes, the indication storing element will remain
set but will be shifted laterally with respect
to the trip 99. The indication storing. mechanism
thus far described may be similar to the structure 70
set forth in co-pending application ?led by
Cederlund and Holmes Serial No. 665,157.
In carrying my invention into effect I have
added a stop shoulder I 24 to each of the latch
members I I 6, the shoulder being moved by the 75
solenoid to the dotted line position shown in
Fig. 4 to be supported by the stop rod I2I for the
pick up the roll I36 and depress the latter, there
purpose of cooperating with a stud I25 longitudi
nally .adjustable in a short lever I26 for purposes
to be described more in detail hereinafter. Each
latch carries a surface concentric with pivot rod
I08 to engage stop rod I2I for the purpose of
I52 and cause lifting of arm I45 to raise the rod
I 41. The inner end of incline I 38 is located with
in the projection of concentric dwell I33 far
enough to permit a limited descent of stud I25 to
shoulder engaging position without causing too
holding the tripped latch in set position as the
indicating. element associated therewith moves
to indicated position shown dotted in Fig. 4.
abrupt engagement with roll I36.
Rod I2I therefore holds the indicated latch
the part of stud I25 are the raising of rods I 41
and I52 which control the shuttle releasing mech
anism of the magazine and the shuttle advancer,
respectively. The upward movements of rods I41
against displacement.
The effect of the mechanism described thus far
in connection with Figs. 2, 3 and 4 is to store an
15 indication of weft exhaustion which may be given
by any depleted weaving shuttle when on the
magazine side of the loom and to throw the stop
shoulder I24 corresponding ‘to the depleted shut
tle into a position where it can interrupt the
20 normal downward movement of stud I25. The
shifting of the yoke I32 will carry an indicated
shoulder out of alignment with stud I25 if the
corresponding shuttle passes out of action upon
its arrival at the box end of the loom.
Reserve shuttle releasing mechanism
The bottom shaft 6 has secured thereto a cam
plate I30 which has two alternately operative
cams I3I and I32, respectively, see Figs. 1, 2, 3
30 and 9.
Inner cam I3! has a long dwell I33 in
terrupted by a flat section I311 which constitutes
rising and falling surfaces. Outer cam I32 is
separated from. the flat area I 34 by a space I35
slightly greater in width than the diameter of a
35 roll I36 carried by a cam lever I31. Cam' I32
has a steep rise I33 and a dwell I39 extending
part way around the plate I 35, as shown in Fig. 2.
Lever I31 rocks around a stud I 46 carried by
the rear end of box lifting lever 94 and has piv-,
oted thereto as at I ill the previously described
lever I26. A compression spring Hi2] surrounds a
headed bolt I21 which ?ts into- a socket I28 and is
loosely guided by a lug I29 on leverl31, as shown
in Fig. 2, hold the small lever against an ad
justable stop screw I43 on lever I31.
A lifting arm I45 also pivoted as at I40 has an
adjustable screw M6 to engage the left end of
lever I31 as viewed in Fig. 2, and has pivoted
thereto an upwardly extending rod I 41 which
controls the releasing of shuttles from the maga
zine to be described hereinafter.
Lever I31 has 2. lug I5!) extending laterally
therefrom through the slotted lower end 55! of
a second upwardly extending rod I52. The up
per end of this last rod extends to the shuttle ad
vancing mechanism to be described.
During normal operation rotation of the bot
tom shaft 6 will result in roll I36 following cam
I3I because of the greater weight of the left end
60 of lever‘l31, Fig. 2. Stud I25 is normally‘held in
by raising the left end of lever I31 to elevate rod
The two conditions therefore which result from
interruption of normal downward movement on 1O
. and I52 are preferably limited to cause proper op
plate I63 having vertical'guide ribs ISA-against '
which lie adjacent surfaces of the shuttles in the 30
inner stacks. The inner vertical edge of plate
I63 is spaced from the adjacent part of the mag
azine to afford a thread passage, as shown at 83,
Fig. 6. The thin partitions are also spaced from
magazine plate I60 to de?ne thread passages 84. 35
The back of the magazine has a brace I65 with
shuttle guiding ribs I66, while a front brace I31
is provided with other vertical guide ribs I56.
The parts I62, 163 and I61 are supported from
the outer magazine plate I6I as suggested in
Fig. 6.
The magazine has four shuttle releasing rock
ing shafts I69, I16, Ill and I12 corresponding re
spectively to stacks A, B, C and D. Each shaft
has secured thereto a shuttle supporting and re
leasing ?nger I13 and a reserve shuttle holding
pad I14 of friction material, such as rubber.
Normally the supporting ?ngers are in the posi
tion suggested in Fig. 5 so that all of the shut
tles in the stacks are ‘supported, but when the
shaft of a stack from which a reserve shuttle is
to be drawn rocks, the supporting ?nger moves
from under the lowermost shuttle to permit the
same to fall on supports 22!)‘ and at the same
time the supporting pad I14 moves into position
to prevent descent of the superposed reserve
shuttles. These parts may be similar to the cor
responding features of my copending application
Serial No. 460,746 to which reference may be had
for a more complete description of the shuttle 60
the raised position shown in Fig. 2 by the dwell
I33, but at the desired time in the cycle of loom
operation the ?at surface I34 arrives under the
releasing and supporting mechanism.
Each rocking shaft has an operating trip ?n~_
roll and ‘the lever rocks to cause a periodic nor
sion by one or another of two depressing arms
I16 secured to a color slide I11 capable of slid
65 mal descending movement of the stud I25. This
downward movement imparts no lift to rod I41 or
arm M5 and these last named parts will therefore
remain ineffective to alter the shuttle releasing
mechanism. In like manner the lug I55 moves
70 down in the slotted end I5! of rod I52 without
eration of the parts which they move, and should
this motion be less than that which would other
wise be imparted to them by lifting of lever 94,
the small lever I26 can yield‘ against the action
of spring I42 to relieve said rods of undue strain.
Magazine and shuttle release
The magazine M has inner and outer plates
I66 and I 6| between which are arranged four
stacks A, B, C and D of diverse reserve shuttles. 25
The stacks are aranged in two pairs with a thin
partition I62 between the stacks of each pair,
and the pairs may be separated by a vertical
ger I15 and said ?ngers are adapted for depres
ing and rocking. An elongated rib H8 is secured
to the slide I11 and is located between a pair of
?ngers 1119 on a rocking lever I80 pivoted about
the slide I11. The upper end of lever I83 is con
conditions roll I36 does not engage cam B32.
Should one of the shoulders I24 be in a posi
tion to interrupt the normal downward movement
nected to a rod I8! the inner end of which is 70
attached to a bell crank lever 1B2 movable about
a ?xed axis and operatively connected to the up
per end of rod I41. Normally the rod I41 is
down as already described but when it is raised
75 of stud I25, however, the steep incline I38 will
during the shuttle changing operation it rocks 75
operatively altering the latter.
Under normal
levers I82 and I80 to cause turning of the slide
I11 in such a direction as to depress the arms
I16 by a force transmitted through the web I18.
It will therefore be seen that upward move
shuttle from the magazine, since downward
movement of an arm I16 will depress a ?nger
I15 to rock one or another of the shuttle releas
shuttle changing operation the pin 22I will ele
ing shafts.
is raised as already described preparatory to a
vate the actuator arm so that the shoulder 201
Reserve shuttle selector
The lever '65 has extending outwardly there
from a rod I85 attached to the rear end of a bell
crank color slide moving lever I86 pivoted as at
I81 to a ?xed bracket 68, see Figs. 5 and 6. This
connection permits rocking and sliding of part
I11. The relation of the arms I16 and the fin
gers I15 is set forth in Fig. 6, from which it will
be understood that the spacing of these ?ngers
and arms is such that rocking of the slide I11 can
cause depression of but one ?nger I15 at a time.
The connection 60 which is operatively related
to lever 65 operates in timed relation with respect
to the shifting of the boxes at the opposite end
25 of the loom and therefore the longitudinal po
sition of the color slide I11 is determined by the
head motion shown in Fig. 10 and in coordina
tion with but prior to shifting of the gang of
boxes-G. The color slide rocks in bearings I9I
30 and I92 supported on the outer end of the maga
It will be seen that the'structure shown in
Figs. 5 and 6 operates to select a stack corre
sponding to the depleted shuttle by mechanism
coordinated with the shifting of the drop boxes
and effecting longitudinal motion of slide I11,
will be horizontally aligned with the pin 2I0, 10
whereupon forward motion of said arm 204 by the
cam will rock the actuator arm in a counter—
clockwise direction about axis 209 as viewed in
Fig. 7. There results a tendency to compress
spring 2 I 5 which is communicated to the advancer 15
arm and the latter, unless obstructed by an im
properly positioned shuttle, will move from the
full to the dotted line position shown in Fig. '7.
Upward motion of rod I52 is timed to occur
when cam 20I is in such position that notch 206 20
is under pin 2I0.
The advancer head is normally behind the rear
most stack of the magazine so that a shuttle
dropping from said stack, as indicated in Fig. '1,
will fall in front of the head. The guide rod 2I8
and eye 2 I 9 serve to hold the head in correct posi
tion with respect to the fresh reserve shuttle as
the latter slides along the supports 220. The pin
22I will ordinarily be held up by surface I39 of
cam I3I long enough to maintain driving relation 30..
between the shoulder 201 and the pin 2I0
throughout the shuttle advancing operation, but
I do not wish to be limited to this arrangement
for maintaining operative connection between the
shoulder and actuator pin.
The cam 20I accompanies the forward motion
and also that after the selection is made the color
slide is rocked by rod I41 to effect delivery of the
lowermost shuttle in the magazine stack corre
sponding to the shuttle which is to be replaced.
the cam also has a high dwell 224 which main
tains the head and therefore the reserve shuttle
Reserve shuttle advancing mechanism
to be described for a su?ioiently long time to in
sure correct boxing. As the cam 20I continues
Pivoted on stud I01 is a lever 200 normally
urged against a cam 20I by a compression spring
202 interposed between, the lever and the stand
45 I06, see Figs. 1, 7 and 8. Cam 20I is secured to
the top shaft of the loom and makes a revolution
each loom beat to move the upper end of the
lever forwardly, or to the left in Fig. '1, by a
force exerted through roll 203. An actuator arm
50 204 is pivoted as at 205 to the leverand has an
elongated arcuate slot I99 the forward end of
which communicates with a notch 206 extending
downwardly and de?ning a shoulder 201. An
actuator arm 208 moves about ?xed pivot 209
and carries a pin 2I0 which extends into the slot
I99. A rod 2II is pivoted as at 2I2 to a part of
the arm 208 and extends through a web 2I3 on
one of two connected advancing arms 2I4 pivoted
about axis 209. A compressing spring 2I5 lim
ited by nuts 2I6 exerts a yielding force between
the arms 208 and 2M tending to move the latter
forwardly or to the left in Fig. '7 whenever arm
208 is moved forwardly by shoulder 201.
The arms 2I4 have an advancing head 2I1 piv
oted thereto from which extends rearwardly a
guide rod 2I8, passing through a ?xed guide eye
2I9. The lay has a pair of the previously men
tioned arcuate shuttle receiving supports 220 ex
70 tending rearwardly therefrom along which the
advancer head 2I1 moves during a shuttle chang
ing operation.
Under normal conditions the actuator arm 204
is down, being supported by‘ pin 2I0. A lifting
:pin 22I on the upper end of rod I52 extends
actuator arm moves back and forth each beat of
the loom, the slot I99 having an idle motion with
respect to the pin 2I0, with the result that the
head 2I1 is normally at rest. When the rod I52
ment of rod I41 operates to release a reserve
through a guide slot 222 in the advancer arm
and into slot I99. Under these conditions the
of the advancing head by an incline 223, and
in proper position to drop into the shuttle box 40
to turn the spring 202 returns the actuator head
to its rear position and the rod I52 is. released
to fall so that arm I45 can again drop to permit
slot I99 to be aligned with the actuator pin 2I0.
It should be noted that when the head which
moves the incoming shuttle is in its extreme for
ward position it is substantially aligned with the
front center partition of the magazine as indi 50
cated in dotted lines in Fig. 7. While this is
desirable, yet I do not consider it an essential
relation. Movement of a reserve shuttle from
the front stack toward the lay in a manner to be
described hereinafter is facilitated by having the
head in the dotted line position in Fig. '1 to serve
as a guide and continuation of the aforesaid
front center partition, but it will be understood
that so far as this front cell is concerned the
advancing head does not move the shuttle for 60
wardly by any appreciable amount as is the case
with the cells behind the front stack.
Reserve shuttle receiving mechanism
That end of the lay adjacent the magazine will
be provided with upper and lower shuttle boxes
230 and 23I, respectively, see Figs. 1 and 7,
the boxes being normally down so that the upper
box is active and opposite a shuttle binder 232
which is substantially ?xed with respect to the 70
lay and does not share the rising and falling move
ments of the boxes. It will be noted with respect
to Fig. 7 that the box structure comprises a back
wall 233 which is in front of the lay plate 2 and
it will further be seen that the forward ends of 75
the supports 220 extend forwardly as at 235
beyond the front surface of the guide plate 2
after the weft detector has had an opportunity
downwardly to engage the rear wall of a shuttle
to operate. The color selector at the magazine
being inserted into box 230, and this rib aligns
andthe group of indication storing elements will
therefore remain in register with the active shut
tle when the latter is at the magazine endsuiii
the cover up to the dotted position shown in Fig.
ciently long to permit the detector to set the 10
storing element ‘corresponding to the. detected
shuttle. .Immediately thereafter, however, the
color selector and storing elements begin to shift.
Fig. 18 shows the time relations of the several
parts of the invention, two complete beats of the
loom being represented. The top tier represents
7 in time to receive the incoming shuttle at back
the positionv of the active shuttle with reference
The cover 236 has a lug I83 to engage a sta
tionary cam I84 carried by the magazine during
the rearward motion of the lay on a shuttle
changing beat. The box 230 will rise soon enough
1.5. to effect this engagement and the cam will throw
center. Furthermore, the box structure has an
abutment I93 to engage a detector withdrawing
20,, arm I94 pivoted to lever 86 and resting normally
‘ ‘ against a stop I95 on. said lever. When box 233
is descending after receiving, a reserve shuttle
and the lay is advancing, the abutment will strike
arm ,I94 and rock lever 86 to carry the detector
25.. forwardly far enough to clear the moving box
‘and fresh shuttle.
'I'he‘previously described dog H4 is pivoted to
an actuator lever 240 moving about the ?xed
pin In‘! by means of a cam Hi. This cam may
be formed as indicated in Fig. 1 and operates in
substantially the same manner as does ‘corre
sponding structure‘ shown in my aforesaid ap
plication Serial No. 585,564. When one of the
indication storing elements directs the dog under
the ledge 238 of lever 94, see Fig. 4, the latter
‘will be raised by upward vmovement of the forward
to the lay positions indicated by the bottom tier
#10. In the latter, F. C. standsfor front center
position of the lay; Top C. for the top center;v
B'K. C. for back center; and, Bot. 0.. for bottom
center. The vertical :lines represent 15 degrees
of angular position of the crankshaft, and the
shaded areas represent periods of motion‘ of the
several mechanisms identi?ed.
At the left F. C., Fig. 18, with the active shuttle
boxed at the magazine end, the detector will be _
detecting, as represented by the shaded area in
tier #2. Shortly after this F. C. position the
effective movement of the parts represented in
tiers #1, #3 and #4 will start and continue until
the lay is nearer back center than top center.
The area in tier #2 shadedin dotted lines rep
resents entry of the feeler into the shuttle box
230 when the active shuttle is at the drop box 35
end and no detection is possible. The color vi
end of actuator 240 with resultant upward move- ‘ brator position is shown in tier #8 and the period
ment of a boxlifter rod 242 whicliis operatively of engagement for the color vibrator gear is
connected to the box lifter lever 94 by structure shown by the shaded area in tier #9. The dif
40, indicated in‘ Fig. 1. When the boxes rise and ference ‘in length between the ‘shaded area ‘of
the lay moves rearwardly the cover 236 will be tier #9. and those of tiers #1, #3 and #4 repre 40
raised from the full to the dotted line position sents the unlocking of the vibrator connector,_as
shown in Fig. 7 by mechanism not set forth herein already explained.
but shown in aforesaid application Serial No.
The selected reserve shuttle is released as in
460,746, the result of which is to leave the top of dicated by the shaded area in tier #5after the
box 230‘ open so that a shuttle which has been selector has come to rest, and thereafter the re 45
moved forwardly by the advancer head will be serve shuttle advancer comes into ‘action at a
able to drop into the upper box 230 by gravity, time indicated. 'by the solid line shaded area in
falling along the wall 233. As cam 24! con
tier #6, the‘ time interval between ‘these areas
tinues to turn the boxes will descend and the. permitting the shuttle to cease vibration due to
“incoming shuttle will be brought into engagement falling. The dotted line area in the latter‘ tier 50
with the stationary binder, being caught between represents the forward motion of head 204 oc
the latter'and the back wall of the shuttle box. curring during part of the time the active shuttle
The frictional contact ‘between the box back and is boxed at the‘rmagazine end and is moving
toward the drop boxes, this motion of head‘2il4
5.5. the shuttle assists materially in moving the in
coming, shuttle down as the boxes fall, this mo
being without effect, since it starts before reserve
tion further being aided by the cover 236 which shuttle release. Head 284 is preferably back in
moves back to the full line position shown in rearmost position before reserve shuttle release,
see tiers #5 and #6, to insure placing of the
Fig. 7 as the boxes descend. For a further de
60 scription of the mechanism for raising the boxes pusher head 2I‘I behind the rearmost stack of
“230 and 23I, reference may be had to the last reserve shuttles.
named application.
Since lever I31 controls head 204 as well as
the shuttle release, there is a further reason for
being one pick in advance
the box motion, and the
being delayed so that it
color vibrator gears until
sufficiently to direct a reserve shuttle downwardly
into the top’ box when the cover 236 for the latter
is raised. The cover has. a rib 234 extending
with the wall 233. The cover and its rib are
notched as at 231, Fig. 19, to permit raising of the
10 cover without interference with the overhand 235.
for the color vibrators
of the indication for
color cylinder section
does not pick up the
delaying shuttle releasing, namely, to permit un
In normal operation, the pattern chain will
loom and the boxesv will shift according to the
obstructed up motion of head 204 if necessary.
This is apparent from Fig. 18, where the dwell 65
between shaded areas suggests that the advancer
desired pattern to render active any one of the
head is back before the reserve shuttle is re
weaving shuttles S’, S2, S3 and S4. The pattern
leased. . While I have shown a one-pick cam for
have an advance movement each beat of the
7 chain will be built with the bars in pairs since
there is no shifting on that beat of the loom
when the active shuttle is at the magazine side.
With each shift of the boxes there will be a
corresponding motion of lever 50, which occurs,
however, before box movement, the indication
operating the advancer head ZI'I yet I do not 70
wish to be limited to this construction.
The reserve shuttle advancer completes its for
ward motion and places the reserve shuttle in
correct vertical position for change before the
lay reaches back center when the active shuttle
is moving toward the magazine end, and the box
ing from the spirit'and scopev of the invention and
230 is also up by action of cam 24I, dog H4 and
I do not wish to be limited to the details herein
disclosed, but what I claim is:
1. In a multicolor shuttle changing loom oper
ating with a plurality of weaving shuttles any
one of which may become active, a plurality of
groups of reserve shuttles, a pattern surface to
determine which weaving shuttle is to be active,
lever 94 before the same back center, as shown
by the shaded areas in tiers #6 and #7.
As the
lay reaches back center, therefore, the incoming
shuttle, being backed by head 2!", falls into the
raised box 230. Box 230 is represented as up at
top center to permit cover lug I83 to engage cam.
v I84 and raise the cover.
Head 2!‘! then recedes, but the boxes 23!! and
23! remain raised until the ensuing bottom cen
ter, or slightly thereafter, to permit the outgoing
depleted shuttle to enter box 23L After boxing,
the boxes descend to permit the depleted shuttle
to be ejected under the stationary binder by lay
motion when the lay is at front center, as indi
cated at the right end of Fig. 18, where the shuttle
changing boxes are represented as down, per
a set of movable reserve shuttle selectors depend
ent for their position upon the pattern surface, 10
Weft detector controlled means to move the se
lector corresponding to the active shuttle from
normal to abnormal position, a plurality of re
serve shuttle releasing means, an operating cam
having two different surfaces, a lever rendered 15
capable by one of the surfaces to move into co
The timing suggested in Fig. 18 is desirable, but
I do not wish to be limited to the exact relations
operative relationship with a selector in abnormal
position, the latter selector thereupon holding the
lever inthe path of the other surface to cause
the lever to become operatively related to the
second surface, and operative connections be
tween the lever and the reserve shuttle releasing
or intervals represented.
means operated by the second surface of the cam.
mitting picking of the freshly inserted reserve
The various parts al
ready described will be set to give the sequences
The control exercised by the indication storing
mechanism is such that a shuttle giving'indica
tion of exhaustion and on the magazine side can
effect setting of its corresponding storing element
and then move out of action when next arriving
at the drop box end, after which another shuttle
may become active and which during its period of
activity may be replaced without loss of the indi
cation given by the first shuttle.
From the foregoing it will be seen that I have
provided a multicolor shuttle, changing loom ca
pable of operation with more than two shuttles
and wherein the weft detector is on the maga
zine side. It will also be seen that the pattern
~ , control is so constructed that the shifting of the
2. In a shuttle changing loom operating with
a plurality of weaving shuttles any one of which 25
may become active, a plurality‘of groups of re
serve shuttles, a pattern surface to‘determine
which weaving shuttle is to be active, a plurality
of reserve shuttle releasing mechanisms, a set of
movable reserve shuttle selectors, one for each 30
weaving shuttle, said selectors dependent for
their position upon the pattern surface, weft de—
tector controlled means operative upon exhaus
tion of the active shuttle to move the selector
corresponding to the active'shuttle from normal 35
to abnormal position, a lever having a normal
movement toward and beyond the abnormal po
sition of the selectors and having its motion in—
terrupted by a selector in abnormal position,
means to give the lever a working stroke when its 40
color selector and indication featuring vmecha
motion is interrupted, and operative connections
nisms is delayed until the weft detector has had
between the lever and the reserve shuttle releas
ing mechanism effective when the lever has a
working stroke to release a reserve shuttle cor
time to operate, thereby insuring registry between
the active shuttle being detected and its corre-.
'hsponding indicating element.
This result as ac.
complished by the specific means set forth herein
includes a pattern chain having an auxiliary sec
tion built like the main section but one pick in.
advance thereof, together with the modi?ed form
of mutilated cylinder for the vibrator gear which
will effect the desired delay to be exercised by
responding to the shuttle which renders the weft
detector controlled means operative.
3. In a multicolor shuttle changing loom oper
ating with a plurality of weaving shuttles any
one of which may become active, a plurality of
groups of reserve shuttles, a pattern surface to 50
determine which weaving shuttle is to be active,
the color selection. Furthermore, the cam which a plurality of reserve shuttle. releasing mecha
controls lever I3‘! is capable of giving said lever , nisms, one for each weaving shuttle, a set of
two different motions one of which is normalrandr reserve shuttle selectors, one for each weaving
the other of which is due to interruption ofthe
normal motion byone or another of the indi
shuttle, dependent for their positions upon the 55
pattern surface, weft detector controlled means
cation storing elements.
operative upon exhaustion of weft in an active
The shuttle advancing
shuttle to move the selector corresponding thereto
tain a more or less parallel relationship with re- 7 from normal to abnormal position, a member
spect to the back wall of the reserve shuttle bei'ng having a regularly recurring motion toward and 60
advanced toward shuttle changing position. beyond the abnormal position of a selector and
movable in a ?xed path with respect to which
Also, the shifting box 230 which receives the in
coming shuttle is provided with a rear wall, and the selectors move, motion of the member to be
its cover is correspondingly formed, so that the interrupted by a selector in abnormal position
head 2 I‘! is preferably so constructed as to main
and lying in said path, means to move the mem 65
changing operation than has been the practice , ber away from a selector in abnormal position
when movement of the member is interrupted
The shuttle changing mechanism herein, shown _ by a selector in abnormal position, and connec
and described is not claimed in this application’ tions operatively related to the member and effec
tive when the latter moves away from the selec-. 70
but forms the subject matter of a divisional ap
shuttle is under better control during the shuttle
plication Serial No. 88,649, ?led by me July 2,
Having ‘thus described my invention it will be
seen that changes and modi?cations may be made
tor to operate the reserve shuttle releasing mech
anism corresponding to the selector in abnormal
4. In a shuttle changing loom operating with a
l- ‘therein by those skilled in the art without depart- ‘ plurality of weaving shuttles any one of which 75
may become active, a-weft detector, a reserve
shuttle releasing mechanism for each weaving
shuttle, a selector for each reserve shuttle re
leasing mechanism, a member moving regularly
toward the selectors along a path with'respect
the loom cycle, a multicolor reserve shuttlemag:
'azine, a selector to determine the type of reserve
shuttle to be released by the magazine, shifting
shuttle boxes, a box pattern surface for'the shift
ing‘shuttle boxes, indicators for the‘ box pattern
surface operatively related to the shuttle boxes,
to which the selectors move so that each selector
is movable to a position adjacent said path, weft ‘ a selector pattern surface similar to the main
detector operated means to move the selector pattern surface but having its indications stepped
corresponding to an active depleted shuttle from , ahead of those of the main pattern surface by an
110 normalto abnormal position and into said path ' interval corresponding to one beat of the loom,
to interrupt the motion of said member, means
to move the member away from the selectors
‘ when movement of the member is‘interrupted
by a selector,‘ and operative connections between
$15 the member and reserve shuttle releasing mech
anisms effective when the member moves away
indicators for the selector pattern surface oper
atively connected to the selector, a regularly
moving actuator for the indicators of the box
pattern surface to engage the indicators for the
latter at a given box point in the loom cycle, a
from the selectors to ‘actuate the release mecha
nism corresponding to the selector lying’in the
second actuator, and means to operatively relate
the indicatorsof the selector pattern surface to
the vsecond actuator after said detecting point
path of the member.
and a substantial interval of time before said
5. In a multicolor shuttle changing loom, a
multicolor reserve shuttle magazine, shifting
shuttle boxes, a reserve shuttle selector for the
box point inthe cycle of loom operations.
‘ 9. In a multi-shuttle shuttle changing loom,
a reserve shuttle selector, an actuator therefor
magazine, a pattern surface to control the shuttle
boxes, a pattern surface to control the selector
:25 similar to the boxsurface but set ahead of the
stroke and having an operative stroke when the
latter by an interval of one beat of the loom, and
means cooperating with the selector pattern sur
ing shuttle boxes, a set of indication storing ele
ments moving in timed relation with respect to
face‘to effect movement of the selector‘prior, to
motion of the shuttle boxes by an interval sub-v
the boxes so that but one element at a time is
aligned with the actuator, a weft detector, an in
terrupting member carried by each element nor 30
stantially'less thanv one beat of the loom. ,
6. In a multicolor shuttle changing loom, a
weft detector to operate at a given detecting point
in the loom cycle, 'a multicolor reserve shuttle
magazine, a selector to determine the type of re
35 serve shuttle‘to be released by the magazine,’
shifting shuttle boxes to cooperate with a plu
rality of weaving shuttles, a box pattern surface
having a regularly recurring non-operative
regularly recurring stroke is interrupted, ‘shift
mally out of the path of the actuator, and means ‘
controlled by the detector when giving indication
of weft exhaustion in an active shuttle to move
the interrupting member corresponding to the
active shuttle into interrupting position with re 35
spect to the actuator.
10, In a multicolor shuttle changing loom
‘for the shifting boxes, a selector pattern surface
operating with shifting shuttle boxes and oper
‘for the selector similar to the ?rst pattern sur
face but giving its indications one beat of the
ating in a cycle having a period of calling and
shifting the shuttle boxes, a multicolor reserve
magazine at one end of the loom, a weft detector
loom prior to the indications of the box pattern
surface, indicators for both pattern surfaces, an
actuator’ for the box pattern surface indicators
effective to move the latter at a given box'point
in the cycle of loom operations, a second actuator
for the indicators of the selector pattern surface
effective to actuate the indicators corresponding
to the selector pattern surface later than said‘
detecting point and prior to said box point in the
50 cycle of loom operations, and operative connec
‘ tions between the selector indicators and the se
'7. In a multicolor shuttle changing loom, a
weft detector operating at a detecting point in
the loom cycle, a multicolor reserve shuttle mag
azine, shifting shuttle boxes cooperating with a
‘plurality of weaving shuttles, a selector for the
magazine to determine the type of reserve shuttle
‘ to be released by said magazine, a pair of rotary
actuators having blank and operating areas, one
for the boxes and one for the selector, the blank
area of the selector actuator overlapping the
operating area of the box actuator, a box pattern
surface for the shifting boxes and box actuator,
465 a selector pattern surface for the selectors and
the selector actuator, the selector pattern surface
being similar to the box surface but giving its
indication, one beat‘ earlier than said box sur
face, and means cooperating with the selector
70 ‘actuator effective to move the selector after the
detecting point and in advance of‘ a shift of the
shuttle boxes by an interval substantially less
than one beat of the loom.
8. In a multicolor shuttle changing loom, a
75 weft detector operating at a detecting point in
at the same end of the loom, a selector to deter
mine the type of reserve shuttle to be released by
the magazine, a lay to move forward to present
the active shuttle to the detector, and control .45
pattern means for the'yselector effective when the
active shuttle is on the magazine side of the
loom to effect a shift of the selector immediately
following operation of the detector, said shift to
occur b?fore said period and anticipating and .50
corresponding to a box shift to occur during said
period when the active shuttle is in the shifting
boxes on the next beat of the loom.
11‘. In a multicolor shuttle changing loom
operating with shifting shuttle boxes and oper 55
ating in a cycle having a period for calling and
shifting the shuttle boxes, a multicolor reserve
shuttle magazine, a selector to- determine the
type of reserve shuttle to be released by the mag
azine, a lay having back and forth movements in 60
the loom, a detector on the magazine side‘ ofthe
loom rendered operative to detect the condition
of the active shuttle by forward movement‘of the
lay, a pattern surface to control the selector, and
means to render the pattern surface for the se 65
lector operative to remove said selector imme
diately after the detector has operated and before
said period in anticipation of a shift of the shuttle ’
boxes to occur during said period.
12. In a multi-shuttle shuttle changing loom, 70
a shuttle selector, an actuator therefor, means to
give the actuator periodic normally non-operative
movements and effective when a periodic move
ment of said actuator is interrupted to give the
latter an operative movement to move the se
"lector‘, a ‘weft detector, a member normally out of
the path of the actuator, and means controlled
by, the detector to move the member into inter
rupting relation with respect to the actuator
when the detector indicates exhaustion of weft
in the active shuttle and cause the actuator to
move the selector.
13. In a multi-color shuttle changing loom, a
14. In a multi-shuttle shuttle changing loom,
shifting shuttle boxes operating with a plurality
of distinctive Weaving shuttles, a set of indicat
ing elements, means to move the elements in
timed relation with the shifting of the boxes, 5
there being an element for each weaving shuttle,
a projection operatively related to each element,
a reserve shuttle magazine having groups of re
weft detector, a multi-color reserve shuttle mag
az‘ine, a shuttle selector therefor, connections be
‘tween the detector and selector to set the latter
serve shuttles corresponding to the weaving shut
for control of the magazine when the detector
indicates weft exhaustion, shifting shuttle boxes,
.for the selector, means to move the actuator rela
tively to the groups and in timed relation with
the elements, means to move the actuator toward
the elements, means to cause the actuator to 515
operate the selector and cause the latter to re
leasea selected reserve shuttle when the actuator
a selector pattern surface having a sequence of
elements to control the selector, a box pattern
surface having a similar sequence of elements to
control the shifting shuttle boxes, actuators con
trolled by the pattern surfaces to actuate the se
lector and the shifting shuttle boxes, support
means for the pattern surfaces tohold the two
surfaces with their sequences offset with respect
to each other a distance corresponding to less
than ‘one beat of the loom, and means to move
the support tocause the selector pattern surface
to move the actuator corresponding thereto im
mediately after indication of weft exhaustion of
the detector and prior to movement of the box
actuator by the box pattern surface.
tles, a reserve shuttle selector for the magazine
to release a selected reserve shuttle, an actuator
engages any projection, said’ projections being
normally out of operative relation with respect to
the actuator, a weft detector to initiate a shuttle 20
changing operation of the loom, and connections
between the detector and‘ elements to move the
projection of an element corresponding to the
depleted shuttle into position for engagement by
the actuator and thereby cause the actuator to
operate the selector.
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