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Патент USA US2136090

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NOV- 8, 1933. .
I
w. s. TANDLER' ET AL
2,136,090
TEXTILE MACHINE
Filed Oct. 2, 1936
59
4 Sheets-Sheet 1
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INVENTO S
smimiad
ATTORNEYS
Nov. s, 1938. ’
w; s. TANDLER ET AL‘
2,136,090.
TEXTILE MACHINE
Filed Oct. 2, 1936
4 Sheets-Sheet 2
E INVEhggRS I
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ATTORNEY5
NOV- 8, 1933'
w. s. TANDLER ET'AL
2,135,090
TEXT ILE MACHINE
Filed Oct. 2, 1936
4 Sheets-Sheet 3
.m"
ATTORNEYS
Nov. 8, 1938.
v w. s. TANDLER ET AL‘
2,136,090
TEXTILE MACHINE
' Filed Odt. 2,‘ 193a /,
4 Sheets-Sheet 4
Half/11L: MM‘
ATTORNEYS
2,136,090
‘Patented Nov. 8, 1938 I
UNITED STATES
PATENT Q OFFICE‘
2,138,090
- TEXTILE MACHmE
William S. Tandler and George Fisher, New York,
N. Y., assignors to Leiier Patent Company,
Inc., _v
a corporation of New York
Application October 2, 1936, Serial No. 103,640
18 Claims. (Cl. 139-55)
This invention relates to control apparatus used
for controlling the operation of a machine hav
ing a plurality of parts to be selectively actuated,
an example of such a machine being a loom for
5 the weaving of ?gured fabrics in which the ‘warp
threads are manipulated by the heddles in ac
cordance with a pattern to produce the desired
design on the fabric. More particularly, the in
vention is concerned with a novel apparatus of
10 .the electro-mechanical type which may be em
ployed for both selecting and operating the parts
requiring selective actuation. While the inven_
tion may be employed in connection with the
machines of various sorts, it affords special ad
15 vantages when employed in connection with a;
loom, and an embodiment of the invention for
that particular purpose will, accordingly, be il
lustrated and described in detail for purposes of
explanation, although it is to be understood that
'20 the utility of the invention is not limited to that
speci?c adaptation.
‘
When used for controlling the operation of a
loom, the new device makes use- of a pattern
sheet carrying a representation of the design to‘
25 be reproduced and it includes devices for oper
so as to lower their corresponding heddles. In an
other form of the apparatus, the selector elements
operate as above described, but after the control‘
members have been selected and restrained, the 10
heddles of the restrained members are pulled to
raise their warp threads, while the heddles at
tached to the unrestrained control members re
main in their initial positions.
1 -. ‘
For a better understanding of the invention,
reference may be had to the accompanying draw;
ings, in which
-
15
_
Figures 1 and 2 are vertical sectional and frag
mentary top plan views, respectively, of one form
of the apparatus;
operation of the apparatus;
Figure 5 is a view similar to Figure l of a 25
ating the heddles selectively, these devices being
controlled by mechanism which scans theppat
tern sheet. The apparatus thus takes the place
of a Jacquard mechanism and obviates the ne
Referring now to the drawings, the apparatus 30
is illustrated in Figure l in a form appropriate
for use in connection with a loom, and it in
cludes a pair of upright supporting members Ill
mounted in any convenient manner, as by being
attached to the side frames of. the loom. Mount 35
ed in the members l0 and extending across the
loom above‘the warp threads is a support H for
a plurality of control members l2 provided with
arms‘l3 and I4 lying at opposite sides of the
rics to an important extent.
'
The principles of the invention may be em
ployed in various‘ types of apparatus, but in all
forms, the mechanism includesv selectively oper
. Figure 6 is a fragmentary sectional view simi~
lar to Figure 5, but showing the ‘parts at a diiier~
ent stage of the operation.
.
ated control members ‘which are connected to
the parts to be controlled and actuating means support. The support preferably has the form
40 cooperating with the control members to cause of a spindle provided with a plurality of closely
actuation of the selected parts. When’ the ap spaced circumferential grooves and each con-r
paratus is used on a loom, 'the pattern control
member‘ismounted in, one of the grooves and
mechanism includes a plurality of control and trol
is free to swing about the spindle as an axis.
operating devices, one for‘ each heddle or group The heddle, i5 or group of heddles to be con
45 of heddles to be actuated in unison, and each trolled by each control member is directly at
such device includes a control member connected
to the arm l3 thereof, and the arms I3
directly to the heddleor group of heddles. The tached
of the control members are normally supported
control members are" selected} ‘by selector ele
a bar I6 which- is mounted in arms I‘!
ments, one for 'each'control membeiggthese se _ by
of a pair of levers I8 journaled on the spindle
lector
elements
being
selectively
operated
under
50
II at opposite ends thereof and near ‘the up?
the control of mechanism scanning the pattern rights
10. Each lever i8 is provided with a sec
sheet. In one form of the apparatus,‘ upon the
arm l9 to which is connected one end of a
selection of the selector elements, the selected ond
spring 20, the other end ‘of the spring being
elements are brought into engagement with their
attached to a ?xed part of the structure, such as
55
20
Figures 3 and 4 are enlarged fragmentary ver
tical sectional views of parts shown in Figure 1,
illustrating the parts at different stages in the
modi?edform of the apparatus; and
30 cessity of preparing a set of punched cards for
each type of fabric to be woven. The use of the
new apparatus‘ consequently simpli?es and re
duces the cost of manufacturing patterned fab
35
vent movement of those members in one direc
tion. The members so engaged by their elements
are then actuated to pull upon and thereby raise
the heddles connected thereto, while the remain
ing control members which have not been en
gaged by their selector elements are moved down
respective control members and thereafter pre
40
.
.
50
2
2, 136,090
a cross-bar 2| extending from one support I9
to the other. The arm l9 of each ‘lever I8 is
swing on its pivot so that one of a pair of studs
also provided with a pin 22 straddled by the legs 54 on the hammer engages one of the selector
of a pair of forks 23, 24 at the ends of links ‘25, elements and swings it on its spindle 42 to bring
5 26, respectively, these links being attached to its hook 43 in position in front of the projection
44 of its associated control member. The ener~ 5
cranks 21, 28, respectively, mounted on a rotat
gization of electro-rnagnet 502: causes the ham
ing shaft 29 journaled in the supports l0.
Near the ends of the spindle ||, arms 30 are mer 49 to swing in the opposite direction and
journaled thereon, and each of these arms has a strike and swing the selector element in position '
10 slotted guide-way3l in which a block” is mov
to be acted on so that. its hook is moved out from
in front of the projection onv its associated con- 10
ably mounted, the blocks being connected by a trol
member.
'
knife bar 33 extending across the loom. Each
The pattern and'scanning mechanism used for
block 32 is connected by a link 34 to an arm 35
on the adjacent lever l8, and each arm 30 is con
15 nected by a strap 35 to a stop member 31 which
is connected by a slot and pin connection 38 to
the arm I 9 of the adjacent lever l8. The strap
35 leading from arm 30 to stop member 31 passes
about a roller 39 loosely mounted on a shaft 40
20 jou'rnaled in suitable bearings in the frame mem-
hers "I, and the stop member 31 is provided with
an abutment 31a, whichv normally seats against
a ?xed part of the frame, such as the cross
bar 2|.
r
.
controlling the supply of current to the electrc- .
magnets 50a, 50b may take various forms as, for
example, the scanning mechanism may be of the 15
photo-electric "or direct contact types,
ch as
are disclosed in the copending' application of
Fisher, Tandler, and Carlisle, Serial No. 92,112,
?led July 23, 1936. For purposes of explanation,
a scanningmechanism of the direct contact type 20 ,
is illustrated in the present drawings, and the
pattern sheet 55 used therewith has electro-con
ductive and insulating areas arranged thereon
With the arrangement described, the rotating in accordance with the design to be reproduced
shaft 29 acting through the cranks 21, 28 and in the fabric being wovena Preferably, the _pat- 25
sheet consists of a thin metal, such as sheet
the links 25, 26, causes the levers l8 to be rocked vtern
copper,
and the background is bare whilethe ?g;
in a clockwise direction about the spindle H, the ures of the
design are formed of insulating ma
levers being restored to their original positions
30 by the springs 20. In each clockwise movement terial, such as paint or varnish. This'pattern
is attached at one end to a rotary support 30 '
of the levers, the arms |1 swing down, permitting sheet
56
which
is rotated with a stepwise motion by
the arms I 3 of the control members | 2 to move means not shown during the operation ‘pf the
down with the bar | B. In such downward move
25
_ ment, all of the warp
threads controlled by the
35 heddles |5 would be lowered, and the selection of
the warp threads to produce warp shedsis, ac_
cordingly, accomplished by re'straining'selected
control members l2 and preventing them from
taking part in the movement produced by the
40 downward movement of the bar IS.
The selection of the control members is e?'ect
ed by means of a pluralityiof selector elements
4|, one for each control member, mounted on
a spindle support 42 mounted in the members
45 In, the spindle having circumferential channels
in which are seated the selector elements, which
are of relatively thin sheet material. Each se
lector element is provided with a hook 43 which,
upon appropriate movement of its selector ele
50 ment, can be brought in position to engage a
projection 44 on its associated control member,
this projection having a face substantially radial
loom. A light current is supplied to the sheet
in any suitable way, as by a line 51 connected
through the ampli?er to the source of energy, 35
and current is withdrawn from the sheet by.~
means of a scanning ‘element 58 in the form of
.a roller mounted on a spindle 59 supported in
the carriage 41, the roller being pressed yield
ingly against the sheet by a-spring 60 encircling“,
the spindle. A line 6| leading from the spindle
completes the circuit.
3
With the arrangement described, as the car
riage moves back‘and forth across the loom, cur
rent passes through the circuit consisting of line 45 I
51, sheet 55, roller 58, and roller 5| whenever the,
roller is in contact with an electr'o-conductive
portion of, the sheet. The connections within
‘the ampli?er are such that when the circuit
through. the pattern sheet is closed, ampli?ed 50
current is supplied to the electrofmagnet 59a
only,- energizing it and causing the hammer 49
with respect to the axis of spindle II and to be
engaged by its hook 43 and another face 45 which » to- swing and move one or more selector elements
55 lies at an angle to the radial face. The selective 4| to effective position in which their hooks 43
lie in front of the projections on their associ- 55
operation of the selector elements is accom
ated control members. When the circuit is bro
plished by means of an electro-mechanical actu
ating device generally designated 46 which is
mounted on a carriage 41 moved back and forth
across the loom on a rail 48 supported on the
members I0 in any suitable way.
2
The actuating device 46 may take various
forms, but in the construction illustrated, it in
cludes a pivotally mounted hammer 49 which
serves as, or is attached to, the armature of a
pair of electro-magnets 50a, 50b attached to the
carriage 41. These electro-magnets are ener
gized and deenergized alternately under the con—
trol of- a scanning mechanism, and each electro
70 magnet is connected through its own supply lines
5| to an amplifying device 52 connected to a
source of electrical energy by lines 53. As the
carriage 41 is moved back and forth across the
loom, the energization of electro-magnet 59a at
any particular instant causes the hammer 4.9 t0
ken, by reason of the roller 58~resting upon an
insulated area of‘ the sheet, ampli?ed current
?ows from the amplifier to electro-masnet 59b
only, which then actuates the hammer and“
causes it to swing one or more selector elements
to ine?ective position in which their hooks are
moved out from in front of the projections on
their associated control members. Inlthe event
that the electroconductive or insulated areas on 65
the pattern sheet are of such size that one or the
other of the electromagnets remains energized
for a period in which the device 45 is moved past
a plurality of selector elements, these elements
are engaged by one or the other of the studs on \70
the hammer 49 and swung by cam action, the
studs having a conical form,as shown, for this
purpose.
_
a
,
'
I
'
At the beginning of the weaving operation, the
Selector elements are all in a position ingwhich 75
3
2,136,090
their hooks are out from in front of the projec
tions on their associated control members, and in
the first traverse of the carriage across the loom,
certain of the selector members are selected and
moved to effective position with their hooks in
front of the projections on their associated con
trol members. When the carriage has com
pleted its traverse, the levers l8 are swung clock
wise by the action of cranks 25, 26 and associated
10 parts, and move the, bar l6 down. The control
members, whose selector elements have not been
selected, then swing clockwise with the bar and
moved down with the bar IS, the raising of the
bar will cause those control elements to swing
counter-clockwise and their projections moving I
beneath the hooks of their associated selectorv
element, would tend to swing those elements to C1
ineffective position,’unless such action were pre
vented.
‘
To prevent the displacement of the selected
elements in .the manner described, there is pro
ided a spring plate 62 extending across the loom 10
and carried by suitable supports 63 movably
mounted in guide-ways in the members l0. Each
support 63 is connected by a link 64 to an arm
65 fast ‘on a shaft 66 mounted in the members I!)
move down. The control members, whose se
and provided with- an arm 61 carrying a roller 15
lector
elements
have
been
selected,
move
clock
15
61a bearing on a cam 68 fast on shaft 40. The
wisewith the downward movement of the bar It - cam action is so timed that, after the carriage
to a slight extent, until their projections are en
41 has moved across the loom and completed its
r the heddles of those control members likewise
gaged by the hooks on their selector elements,
after which those members are restrained against
20 further clockwise movement with the bar It.
The clockwise movement of the levers [8 acts
at once through links 34 to start the knife bar 33
moving inward toward the spindle II, but the
parts are so constructed and the operation is so
25 timed, that the edge of the bar does not pass
inward beyond the ends of arms l4 of the control
members until the arms l4 of those control mem
bers which are free to move down with bar l6
have risen above the plane of movement of the
30 knife bar. Accordingly, as the bar moves in, it
passes over the tops of the arms l4 of the control
members which have been selected and re‘
strained by their selector elements,. and beneath
selecting operation, the spring plate 62 is ad
vanced toward the spindle 42, The plate is pro 20'
vided with spring teeth 62a, one for each selec
tor element, and in the advance of the plate,
these teeth pass beneath the ends of arms 4la
on those elements which have been moved to
effective position in the selecting operation. 25
Thereafter, as the bar l6 raises the previously
unselected control members and the projections
on those members pass beneath the hooks of ‘
their associated selector elements, such of the
elements as have been moved to effective posi 30
tion are raised by the projections, and this. causes
the arms Ma of such elementsto move down
against the spring ?ngers 62a. When the pro
jections have passed behind the hooks, the spring
the ends of the arms l4 which have not been I ?ngers raise the arms 41a and this restores the 35
selected and are to move with bar l6.
As the clockwise movement of the levers l8
and bar l6 continues, the pins 38 on arms IQ of
the levers reach the upper ends of the slots in
the stop members 31, and thereafter thearms 30
are swung downv or counter-clockwise by the
straps 36 as the arms I9‘move clockwise or rise.
The lost motion in the connections between the
arms 30 and levers l8 permits the knifelbar 33
to move in over the tops of the arms l4 of the
45 control members which are to be restrained
against movement with the bar l6, before the
arms 30 are moved counter-clockwise by straps
36. Accordingly, when the counter-clockwise
movement of arms 30 takes place, the knife bar
engages the arms l4 of the control members re
ferred to, and those members are moved counter
clockwise on spindle ll. Accordingly, when the
downward movement of the bar I6 is completed;
certainof the control members have been swung
clockwise and the remainder counter-clockwise.
The heddles have thus been segregated into two
groups with one group raised and the other low
ered. This completes the shed.
selected elements‘to effective position.
As the levers l8 and bar It start to return to
their initial positions, the pins 38 move length
wise in the slots in the stop members 31, and the
arms 30 are given an initial clockwise movement 40
by the weight of their heddles and warp threads,
to take up the 10st motion in the connections.
Thereafter, as the levers l8 swing counter-clock
wise, the arms 30 swing clockwise at the same
rate, and the knife bar 33 moves outwardly along 45
the tops of the ‘arms [4 of the control members.
Just as the knife bar is freed from the tops of the
,arms 14, the arms l3 of the associated control
members are engaged by the bar l6 and all the
control members then remain in their common 50
initial position until the bar l6 moves down
again.
.
y
'In the modi?ed form illustrated in Figures 5
and 6, the apparatus includes control members l2
mounted on aspindle l l and selectively restrained 55
by selector elements 4| actuated by an'electro
mechanical device ‘46 mounted on a carriage 41
carrying the direct contact scanning element 58,
these parts being of the construction previously,
The shuttle or needle is now passed through described. The arms. l3 of the control elements 60
time, the carriage 41 '
60 the shed, and at the same
are directly connected to heddles [5 which pass
makes a return movement across the loom, dur
over guide rods 69 and thence extend downward
ing which the selection for the next shed is to the warp threads. Mounted on the spindle ll
effected. '_In this selecting operation, the pat
at the opposite ends thereof are bell crank levers
tern may require that certain selector elements
previously effective should be restored to inef
fective position, andthe elements are freely‘mov
able for that purpose since their associated con
trol members have been swung counter-clock
wise by the action of the knife bar 33. ‘Other
selector elements will then either be left in e?ec~
tive position or be moved to effective position by
the electro-magnetic actuating device. If any
elements, which are to .be effective in the next
operation, are associated with control ‘members
75 which were not previously selected and have been
10 connected by a bar 1| having a row of open
65
ings through which pass the individual'heddles
l5. These bell cranks 'l?'are raised and lowered
by links 12 actuated by suitable means not shown,
such as cams, and each bell crank lever 10 has
one arm 13 connected by a link 14 to a block 15'
70
mounted for sliding movement in guideeways 16,
in one of the frame members ill, the blocks 15
supporting a knife bar 11.
_
I
With the construction described, at the comple
tion of each selecting operation by the movement 75
4
2,180,090
of the carriage across the loom, certain 01' the
selector elements II will have been moved to
effective position in which their hooks 43 lie in
front of projections 44 on their associated control
members.
The levers ‘ID are now moved down,
and in this movement, those 'control members
which have not been selected and held by their
associated selector elements will 'likewise move
down. The downward movement of any control
trolling the operation 01' the heddles of a loom,
a plurality of control mem
bers connected directly to the heddles to be con
trolled thereby, means for actuating the'control
, the combination of
members selectively to cause the heddles of se
lected members to be displaced to form a warp
shed, and means for selecting the control mem
5
bers including a plurality .of selector elements,
10 member has no e?ect on its heddle, since that
portion 01' the heddle between the control mem
one for each control member, means for operating
selected elements to render them e?ective to pre 10
ber-and the guide rod 69 simply swings about the vent movement'of their respective members in
rod as a center without raising or lowering the one direction, and separate means for engaging
and holding said respective members against
heddle eye to any substantial extent. The down
15 ward movement of the bar 1|, however, causes a , movement in said direction.
2. In a pattern control mechanism for con 15
pull on the heddles H of those control members
which have been restrained by their associated trolling the operation of the heddles of a loom,
selector elements, and this pull is sumcient to the combination or'a plurality of control mem
raise the heddles so that a warp shed is thereby bers connected directly to the heddles to be con
20 produced.
trolled thereby, means for actuating the control
As the shuttle or needle passes through the members selectively to cause’ the heddles of se 20
shed, the selector elements must be set up for lected members to be displaced to form a warp
shed, and means for selecting the control mem
the next shedding operation, and this necessi
tates that all the selector elements including those bers including a series of s'elector elements, one
for each control member,;fmeans for operating
which have been eiiective, should be freely mov
selected elements to render them effective to pre
able. The knife bar 11 is provided for this pur
pose, and as the levers ‘I0 move down, the bar is vent movement of their respective members in
one direction, including an actuating device and
moved in‘over the arms I‘ of the control mem
means for causing a re‘ative movement of the
bers I3 which have been restrained by their se
30 lector elements. The shape, of the under surface ' device and the series of selector
elements, and
of the bar is such that in its inward movement, it separate means for engaging said respective 30
forces the arms l4 downward to a slight extent members and preventing movement thereof in
and thereby moves the previously restrained con . said direction.
trol members clockwise to an amount su?icient
35 to release the hooks of their associated selector
elements. These elements may then be actuated
by the electro-magnetlcally operated hammer in
the-manner previously described. As the levers
3. In a pattern control mechanism for con
trolling the operation'of the heddles of a loom,
the combination of a plurality of control members 35
connected directly to the heddles to be controlled
- thereby,
means for actuating the control mem
'80 rise, the knife bar TI is moved out from above bers selectively to cause the heddles of selected
40 the arms I 4 and frees these arms just as the bar members to be displaced to form a warp shed,
‘H engages the arms l3 oi the respective control means for selecting the control members includ
members. The parts are thereupon in their ing a series of selector elements, one for each con
initial positions and the cycle of operations'is trol member, means for operating selected ele
repeated.
1
ments to render them effective to prevent move
45
In both forms of the apparatus described, it ment of their respective membersin one direc
will be noted that they, heddles of the control tion, including an electro-mechanical actuating 45
members which are selected and restrained by the device and means for moving said device along
action of their selector elements are raised so, the series of selector elements, and separate
that their warp threads are moved into the upper means for engaging said respective members and
50 part of the shed, and the warp threads controlled preventing movement thereof in said direction.
by heddles whose control members have not been
4. In a pattern control mechanism for con
selected remain in the lower part of the shed. trolling the operation of the heddles of a loom,
In the construction illustrated in Figure 1, the
two ‘groups of warp threads segregated by the the combination of a plurality of control members
connected directly to the heddles to be controlled
55 selecting operation are moved in opposite direc
thereby, means for moving the control members
tions from their initial level position, while with between two positions, a plurality of selector ele
the construction shown in Figures 5 and 6, only
the warp threads which are to lie in the upper ments, one for each control member, meansfor
operating said elements selectively to cause them
part of the shed are moved, and the remainder
80 stay in their level position. The new apparatus to restrain their associated control members
thus takes the place of a Jacquard mechanism against being thus moved by said moving means, 60
and eliminates the use both of a set-of punched and means for moving said restrained control
members between one of said positions and a
cards and of the card barrel,,needles, hooked third position.
I
.
z
wires, and lifting apparatus of such a mecha
5.
In
a
pattern
control
mechanism,
the
com
65 nism. The pattern sheet'employed with the new
control carries a representation of the design bination of control members connected directly v65
to the parts to be controlled thereby, means nor
which is to be reproduced, and since such a sheet can’ be made at much less cost than the set of mally operating to cause a reciprocating move
cards which would be necessary with a Jacquard ment of all said control members along one path,
70 mechanism'to reproduce the pattern, the use of means for selecting the control members to re
,the new apparatus reduces the cost not only of .
the equipment, but also of operation in the weav
ing of ?gured fabrics.
We claim:
'
‘
‘1. In a’pattern control mechanism i'or con
ceive such movement including selector elements, 70
one for each member, said elements being oper
able to restrain their respective members against
said movement, and means under the control of
a pattern for actuating the elements selectively,
and means for giving the restrained control mem-'
2, 186,090
to produce warp sheds, said means including a
bers a vrecipr'miating movement along another
path.
5,
support for said members movable with the mem- -
>
bers thereon to and from one of saidlsecondary
positions, a plurality of selector elements, one for
each control member, movable selectively to en
their respective members and restrain them
moving the memberslselectively to secondary‘ po-' gage
against movement with the support, means under
sitions displaced from a common initial position the control, of a pattern for operating the ele
of said members, including a support for the ments selectively, and a bar connected’ to and
members movable to and from-one of said second
movable with said support for movingcontrol 10
ary positions, and means engageableiwith the‘ members not restrained by their respective selec
6. In a pattern control mechanism, the com
bination of control members connected directly to
vthe parts to be controlled thereby, means for
members to move them to and from the other of
said secondary positions, and means for con
tor elements to and from the other of said sec
trolling the operation of the moving means, in
cluding a pattern, a plurality of selector elements,
11. In a pattern control mechanism for- con
trolling the operation of the heddles of a loom,
the combination of a plurality ,of control mem
bers connectedto the heddles to be controlled
thereby, means .for operating the control mem
ondary positions.
one for each control member, movable to engage
and restrain their respective members‘ against
movement to one of said secondary positions,
and means under the control of the pattern for
15
bers'selectively and causing selected heddles-to
operating the elements selectively,
be displaced to form a warp shed, and means for
selecting the control members including a plu
rality of selector elements, one for each control
'7. In a loom, the combination of heddles, con
trol members connected to the heddles to-be con
trolled thereby, and means for moving the con
member, ‘engageable ‘with their respective control
trol members selectively to secondary positions
members to restrain them against movement in
displaced from a common initial position 'to pro
one direction, a device movable relative to the 25
selector elements and operable under the con
trol of a pattern for actuating said elements to .
cause them to perform their restraining func
duce warp sheds, said means including a member
movable with the control members to and from
one of said secondary positions, a plurality of
selector elements, one for each control member,
movable selectively to engage their respective
tion, and means for engaging actuated elements
and holding them in position after such actu 30
30 members and hold them against movement with
ation.
the movable member, means under the control ‘
12. In a pattern control mechanism, the com
of a pattern for operating the elements selec
bination of a plurality of control members, means
tively, and means for moving control members
not held by their respective selector elements to
for moving said members to and from an initial
positiomand means for selecting the members to: 35
35 and from the other of said secondary positions.
8. In a loom, the combination of heddles, con
trol members connected to the heddles to be cone
trolled thereby, and means ,for moving the con
be'moved by said moving means, said selecting
meansincluding a plurality of selector elements.
one for each control member, engageable with
their respective control members for restraining
the latter against movement in one direction,
vmeans under-the control of a pattern for selec
trol members selectively to secondary positions
40
45
displaced from a common initial position to pro-.
duce warp sheds, said means including an abut
ment member movable with the control members
to and from one of said secondary positions, a
plurality of selector elements, one for each con-'
trol member, movable selectively to engage their
tively operating said selector elements to cause
them to perform their restraining function, and
a member movable into engagement with said
‘selected and operated elements and preventing
45
displacement thereof by said control members
during the movement of the latter.
13. In a pattern control mechanism, the corn
.bination of a plurality of control members
mounted for swinging movement, each member 50
respective members and hold them against move
ment with said ‘abutment member, means under
the control of a pattern for operating the ele-_
ments selectively, and means connected to said
member and operable'therewith for moving con
50 trol members not held by their respective selector i having a pair of arms, means engageable with one
arm of each control member and operable to cause
elements to and from the other of said secondary
positions.
'
,
movement‘ of said members to and from a sec
‘
9. In a. loom, the combination of heddles, con
trol members connected to the heddles to be ‘con
55 trolled thereby, and means for moving the con
trol members‘ selectively to secondary positions
displaced from a common initial position to pro-,
duce warp sheds, said means including a support
for
said members movable with the members
60
ondary position displaced from the common ini
tial position of said members, means for selecting 55
the control members to be moved by said vmoving
means and including a plurality of selector ele
ments, one for each control member, engageable
with their respective ‘control members for re
straining them against movement to‘isaid sec 60
ondary position, means for operating said selector
thereon to and from one of said secondary'posi- , elements selectively, and. means engageable with
tions, a plurality of selector elements one for each .the other arms of said control members vand
control member movable selectively to engage operable to move the- control members unre- ~
their respective members and restrain them strained by their selector elements to another,
secondary position.
‘
_
65 against movement with the support, means under
the control of a pattern for operating the ele
14. In a. pattern control mechanism for con
ments selectively, and means .for moving control trolling the heddles of a loom, the combination members'not restrained by their respective se
of a plurality of freely movable control members
lectorielements to and from the other of said .connected directly to the heddles to be controlled 70
secondary’ positions.
thereby, a plurality of selector elements one for
10. In a loom, the combination of heddles, con
each member, means operable to impart a move
vtrol members connected to the heddles to be . ment to all the control members in unison, means
controlled thereby, and means for moving the for operating the elements selectively to restrain'
control members selectively to secondary posi
their associated members from being moved by 75
tions displaced from a common initial position
6,
8,138,090
the operation of said moving means, and means
independent of said elements for engaging the
restrained members and preventing them from
being moved by said moving means.
15. In a pattern control mechanism -for con
trolling the heddles of a loom, the combination of
a plurality of control members mounted for move
ment and connected directly to the heddles to be
controlled thereby, a plurality of selector ele
10 ments, one for each member, operable to restrain
their respective. members against movement,
means ‘for operating the elements selectively,
means for moving the unrestrained control mem
bers, and a second means for engaging and re
straining the control members previously re
. strained by said selector elements.
16. A pattern control mechanism which com
of movable control members
' prises, a plurality
connected respectively to the (parts to be‘ con
,20 trolled thereb , a plurality of selector elements,
, one for each member, operable to engage and
restrain their associated members, means for
moving the unrestrained control members, means
engaging the control members restrained by said
2,5 selector elements and moving them to release said
elements, and means under the control of a pat
tern for operating the selector elements selec
tively.
'
17. A pattern control mechanism which com
prises, the combination of a plurality of control
members connected respectively to the parts to
- be controlled thereby, a plurality of selector ele
ments one for‘ each member operable to engage
and restrain their associated members, means
.for moving the unrestrained control members,
means for ‘engaging the restrained control mem
bers and moving them to release the selector ele
ments therefrom, means under’ the control 01' a
pattern for operating the selector elements selec
tively, and means engageable with selected ele
ments for holding them in actuated position.
183. In; a pattern control mechanism, the com
bination of a plurality of control members, means 1%.
for moving the control members in unison be
tween two positions, a plurality of selector ele
ments, one for each control member, said ele
ments being engageable with their respective con
trol members to restrain the latter against move 20
ment by said moving means, means for operating
said selector elements selectively to cause them
to perform their restraining function, and means
engaging the selector elements so operated and
holding them in restraining position.
WILLIAM S. TANDLER.
GEORGE FISHER.
25
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