US2576244A - Automatic electric transfer fancy loom - Google Patents

Description

Nov. 27; 1951 .1. STUER 2,576,244

AUTOMATIC ELECTRIC TRANSFER FANCY LQOM Filed Feb. 4, 1949 4 Shgets-Sheet 1 Nov. 27, 1951 i J, s u 2,576,244

' AUTOMATIC-ELECTRIC TRANSFER FANCY LOOM Filed Feb. 4, 1949 1 4 Sheets-Sheet 5 JOSEPH STuER INV NTOR. 'BY K Nov. 27, 1951 J. STUER 2,576,244

AUTOMATIC ELECTRIC TRANSFER FANCY LOOM i Filed Feb. 4 1949 4 Sheets-Sheet 4 FIG. l8 JOSEPH 5mm INVENTOR.

Patented Nov. 27, 1951 AUTOMATIC ELECTRIC TRANSFER FANCY LOOM Joseph Stuer, Lawrence, Mass; Application February 4, 1949, Serial No. 74,638

10 Claims. 1

This invention relates to what are known as automatic shuttle shifting and bobbin transfer looms such as include, besides the frame, a lay which beats up and carries a bunter, which at the proper time, engages a transfer hammer mechanism or assembly pivoted to the frame and. having arms at about a right angle to each other, one arm carrying a pivoted contact dog and the other am having a head in position to engage a full bobbin from a magazine which is fixed to the frame.

As part of such a magazine are bobbin supporting guideways for full bobbins, there being also, at the bottom of the magazine, giveways which direct a full bobbin to a position where it can be engaged by the head of the transfer hammer and forced down into a shuttle in a shuttle box carried by the lay at the end of its race, to replace an almost empty bobbin therein.

There are also hand fed fancy looms in which there are shuttle boxes on each side of the lay, one or both having cells, and which can be moved up or down by well known devices, known collectively as the head motion, so as to bring any one of the cells on either side opposite the race on the lay.

Such looms usually have mechanism for manipulating the harnesses for the warps and also chains to manipulate the shuttle boxes on one or both sides according to the pattern.

There are also automatic bobbin replacing looms in which there is a magazine on one side under which is a single box and on the other side, a shifting shuttle box with a number of cells each cell carrying up and down, as controlled by the color indication mechanism, a certain shuttle which shuttle carries a bobbin wound with a particular color or kind of thread.

7 My devices are particularly adapted for this type of loom but some or all parts might be used in other types of bobbin replenishing looms. With this type of loom there is a bobbin filling feeler in position at the front or back on either the right or left side which, when it feels that the filling on any particular bobbin is getting nearly exhausted starts the devices for replacing that bobbin by another full bobbin of the same color and kind. These bobbins of different colors and kinds are in stacks in vertical guideways in a stationary magazine. Pivoted to the frame at the bottom of each of these guideways, is what is known as a cradle which can be turned so as to receive a bobbin and again turned to discharge it.

The usual method of; moving these cradles is by means of slides, one for each stack of bobbins as shown in the patent to Ryon, No. 1,030,748,

of June 25, 1912, at 36.

tion shaft up and down a greater or less distance,

erable by a transfer feeler solenoid and I replace In the Ryon device which is in extensive use, there is what is known as a chopper mechanism in which a certain rod is moved up and down and this moves the fingers on the color indicadepending on the action of the bobbin filling feeler and the chopper mechanism.

I replace all of the so-called chopper mechanism by electric devices and connections opthe mechanism, which with Ryan is connected with the rock shaft 25 and other devices for setting the transfer hammer dog in position to be engaged by a bunter on the lay, by electric devices which are somewhat similar as far as the transfer hammer is concerned to those shown in my previous Patent No. 2,418,324 of April 1, 1947.

This invention is applied to a well known type of fancy stationary magazine loom having such well known parts as harnesses, reeds, warp controlling means and lay operating devices together with pickers and other known devices and with very slight changes can be converted from or adapted to other types of looms which are known as pick and pick.

It comprises an electric bobbin filling feeler which includes a switch in an electric circuit to close a circuit through a first or slide pin solenoid to pull out a slide locking pin of a slide pin switch thereby allowing a magazine slide which, as shown, is spring pulled, to turn a cradle to receive a bobbin from a stack. This slide pin is also interposed in a second dog pin pulling solenoid or transfer electric circuit which at the proper time and under the proper conditions of operation drops a full bobbin from a cradle into giveways and also either sets the dog of the transfer hammer for engagement with a bunter on the lay for transfer or rather it starts the dog to setting position but instead of moving up in front of the bunter, the parts and timing can be so arranged that it may first hit under the bunter or rise just after the lay and bunter start back.

Besides the filler feeling circuit, there is such a transfer electric circuit operable by timing mechanism preferably including a make and break switch to close this circuit through a slide 3 pin at a predetermined time. This timing can be such as to produce a longer period of time between the tipping of the cradle for the dropping of the full bobbin into the giveways and the moment when the transfer hammer head engages such bobbin than can be done with the Ryon or other devices.

By proper coordination andcooperation with the color indication devices, the full bobbin in a cradle under a stack can be transferred on the second pick after filler feeling or, if the color changes, it can be held in its cradle until the fingers of the color indication shaft, or. rather a finger, comes back in line with a nose on a:

slide after a long interval or while another color or thread in another shuttle is being woven.

I can use a slide with a single. nose. andwith returning spring mechanisms associated with a pin as described, and I preferably also use the solenoid and dog pin construction shown in my patent'of April 1, 1947, No; 2,418,324, the'transfer devices with such color indication shaft and fingers so that the new full bobbin starts out of its cradle at the same time that the'dog pivoted on the transfer hammer starts torisebothbeing controlled by a dog holding pin and a dog spring.

For clearness andconveriie'ncal will call a pick closes a circuit which releases a springpulled' or spring pressed slide to turn a cradle to receive ajfull' bobbin of the kind in" the shuttle. This bobbin" remains ready, with the dog of the transfer mechanism not in set position, until the next pick which between top, 'back and bottom centre throws'the shuttle to the boX side of the loom where between bottom, front and top centre, if the boxes have not shifted, the timing switch is closed and'as the slide pin is out and the slide pin switch is closed, the dog pin pulling circuit is closed and the dog starts to rise or to be set.

This motion of the dog is at a time near the end of the first pickor near the beginning of the second pick and turns the color indication shaft and as there is a finger on that shaft opposite to and above the slide for the right cradle to drop the right full bobbin into the giveways, this finger engaging the nose, moves that slide so that it turns its cradle and starts the fresh bobbin down towards the giveways. Preferably however, the timing is such that while the dog may start towards its position or to be set, it will either strike under the" hunter or pass it as the bunter is going back, with the result that while the bobbin starts dropping the actual transfer does not take place until the same shuttle has returned to the position under the magazine at approximately bottom centre and has then been carried forward roughly somewhere between eight and eleven oclock during which interval actual transfer is accomplished. In the drawings 7 Fig. 1 is a diagrammatic front elevation of a loom with a stationary magazine on its right hand side'and with a multiple cell drop box on the other side, the well known parts of the 100111 and thelo'catiori-of a timing sv'vitch A being indicated.

Fig. 2 is an elevational view as from the inside of a loom with a magazine on the left hand side instead of the right as in Fig. 1, showing diagrammatically the connecting mechanisms for the pin shaft and the color indication shaft together with the transfer mechanism, the lay and bunter.

.Fig. 2A is a view of the turning arm at the end of the color indication shaft and of: the connecting link to the transfer mechanism.

Fig. 3 is an elevational view as from the inside of the slides and the cradle operating mechanism for each. stack of bobbins in a magazine.

Fig. 3A is a diagrammatic view showing the relation of the color indication shaft with its slide Fig. 5 isa front elevational view of the cone.

nections ofthe pin shaft, a hand and a slide look! ing pin, together with the relation. ofteach slidev to a cradle.- a 1 Fig; 5A is an elevational view from the. right. of the' bottom part-of a slide, showing the. position of thepin and slot when the slide is down.

Fig-.-6 is a View similar to Fig. 5, with. the-pin shaft turned to its position when 'its'. hand has. pulled out a pin, such pin being indicated by No. 2 while No.1 pin is not pulled out.

Fig. 6A corresponds with Fig. 5A and shows. the position of the pin and slot when the slide. is lifted.

Fig.- 7" is a diagrammatic plan view showing. the. relation of the end of a pin atitscontact. end with the contacting face of a. member of the hand contact assembly of a transfer hammer switch. 1

Fig. 8 shows diagrammatically the filling feeler switch circuit. a i L Fig; 8A shows a feel'er of the .elctric switch type. a

Fig. 9 is an enlarged elevational view similar to Fig. 2A, showing that the arm 10 and the link L are fixed tothe color indication shaft.

Fig. '10 is a diagrammatic elevational view .of the transfer mechanism in its usual position and with the lay and bunter at the front centre posi-- tion.

Fig. 11 shows the position of the various transfer parts, when the transfer switch and timing switch are both closed, with the hammer arm of the transfer still raised but with the dog controle ling mechanism released and having pulled down on the connecting link to allow the dog' to be lifted up under the hunter.

Fig. 12 is a view similar to Figs. 10 and 11 showing the positions of the parts at front centre on the second pick or when the lay and" its bunter have accomplished transfer. 7

Fig. 12A is a detail showing a modification of the shape of a dog and of a hunter.

Fig. 13 is a diagram as from the left of Fig. 10, or whatis called the front of the loom, showing the connections from the dog pulling solenoid to the dog release pin. a 1

' Fig. 14 is a view similar to Fig. 10, of another transfer resetting device. I Fig. 15 is a view similar to Fig. 11 of such other transfer resetting devices with the dog set for transfer.

Fig. 16 is a cross sectional view of a driveshaft with one embodiment of'a timing switch. I

I Fig. 17 is a diagram of the transfer hammer setting or dog release circuit. I

Fig. 18 is a diagrammatic plan view. of the timing switch contact parts. 7

In the drawings, for convenient identification, the following letters are used to describe the major parts of the device as units, the details of which are indicated by numbers.

The whole loom which is of the well known Crompton & Knowles type is indicated by K with a shifting shuttle box withcells on one side and a stationary magazine indicated by M on the other side. A single. shuttle .box or cell is used under the magazine and as shown, at the front on that side is a filling feeler F of the electrically A operable type.

Each of the slides which turn a cradle is indicated by S and the operating nose on this slide is indicated by N.

I There are spring pressed pins P, each of which cooperates with a slide S and thereisapin shaft 0 which carries the devices which I will call hands, each shownas forming a hook which 00- operates with a pin P when opposite such a pin as part of a latch and as a part of a, multiple contact switch indicated by B, whereby at the right time with the right conditions one of the pins P can be pulled out to release aslide S, this action turning a cradle under a stack in a magazine so as to receive a full bobbin. r I

The whole transfer hammer T, which includes two arms, one of which carries a head and the other carries a dog D pivoted thereto, is pivoted to the frame of the loom in about the usual manner.

The color indication mechanism as a wholeis indicated by I and the color indication shaft which is axially slidable thereby is indicated by C.

The color indication or head motion mechanism also moves shaft 0 axially but itand shaft C are turned by other mechanisms.

There is a link L which is a connecting member between the dog D and the color indication shaft C and A indicates the make and break tim ing switch which, at the right time, helps to release a do pin 38 which has held the spring actuated pivoted dog I) out of the path of the hunter carried by the lay of the loom.

Preferably this do D and this bunter are made of such a shape and size and so positioned that in the preferred type of this device they allow a certain dwell for a longer time period than the usual interval when a cradle is tipped to drop a full bobbin to the time when the head of the hammer of the transfer engages that bobbin. I

The loom K is of the well known type described and includes a frame I, a lay U which is movable back and forth on or with apivot shaft in a well known manner by a crank action from shaft IBI. There is a race II4, a shuttle box I I5, as well as a picker, picker sticks, harnesses and other well known parts which it is not necessary to describe. 'The magazine M is also of a well known type and is shown as being provided with four guideways 9, 9, 9, 9, in each of which bobbins V of a certain material and color such as red, blue, green and white are stacked.

At the bottom of each guideway is a cradle 8 of a well known type which can be turned but which normally holds up its stack of bobbins and must be turned to receive a fresh one. When so turned it receives a fresh bobbin and when it is then turned back to its original position it spills out that bobbin. Its turning is controlled by a slide S, also of well known construction, ex-? cept that instead of havin two noses such as shown in the patent to Ryon, No. 1,030,748, to be engaged by a finger carried by the color indication shaft, each slide in my device needs only one nose N as the slide is pulled or actuated by a tension spring I I which tends to lift it into the position for receiving a bobbin. It also has a pin recess I2 which when engaged by a slide locking pin P locks the slide and therefore its cradle in the position where it does not hold a bobbin but allows a bobbin to drop into the giveways in the usual manner.

I 00 is the bottom shaft which operates the pickers and in many looms revolves once for every two picks in a well known manner. IIlI is the top shaft which revolves once for each pick and operates the lay. 90, 92, 93, 94 indicate the cells in the shuttle box I15 controlled by means of a member 52 from the color indication indicated by I in a well known manner while 9| indicates.

the single shuttle box under the magazine and 200 indicates the giveways. These parts are all well known in this type of automatic bobbin changin loom. I

Each slide locking pin P has an end I4 to engage a recess I2 and another end I5 which projects out into the path of a slidable contact member I3 with which it forms a slide pin switch ;B. This end I5 is rounded so that it can be slidingly engaged by the contact member I3 of the slide pin switch B and there is also a spring I6 which is always pressing the pin P against the slide S as in Fig. 5.

I The result of this construction isfthat when a pin shaft 0, carrying hands H, H, is turned by a solenoid 20 in a feeler circuit in which is a filling feeler F, which includes a switch to close the circuit on indication, a hand H engages collar ill on a locking pin P, opposite which that particular hand is located, pulls the pin P out from its recess such as I2 allowing the slide spring I I to lift its slide thereby turning a cradle 8 by means of slot 83 and pin 82 soas to allow the cradle to receive a full bobbin.

In Figs. 5A and 6A the positions of a cradle 8 and its pin 82 with relationto a slot 83 are indicated.

Filling feeler F is of the well known electric type as shown in Fig. 8A. The feeler F is of a well known type, with a feeler fingerand a spring, not shown, so that when its tip I48 engages a yarn mass or bunch on a bobbin when the lay beats up, finger I41 slides forward but if tip I48 slips on a bare bobbin as shown by the dotted lines in Fig. 8A, its end I46 engages a spring contact I40, which is grounded. This engagement completes the feeler circuit through conductor I43 and through thesolenoid 20. This pulls on armature 64 and rod 62 which causes the pin shaft 0 and hand assembly H to turn, as shown in Figs. 5 and 6. I

Each hand H and each contact member I3 of the slide pin switch B as well as the fingers 6, 6 on the color indication shaft C move axially with the pin operating shaft 0 being caused to do so by the bell crank lever, 50 pivoted at 5|, which is connected by a flexible member 52 to the color indication mechanism not shown. See Fig. 2.

Member I3 is insulated as at I 0 and the pins P are shown as grounded.

As shown in Fig. 7, the faces of contact members I3 of the feeler and slide pin circuit and the outside or free ends of pins P are all so roundedzthatshaft O can bemoved axially with meme bers.ii3islidingover-the pins P. Thisis'made possibleby the .arm I65 .on shaft and spring 65, Fig. which normally keeps the members I3 in the position, shown in Fig. 5, but allows them :to yield as shown in Fig. 6 so that .while each contact member I3 can make an electric contact with each of the pins I, 2, 3, and 4, or rather with each pin when it is pulled out by its hand H, they will not jam as spring 65 allows isome :yielding.

The pin shaft 0 visturnable and slidable in the fixed bearings 53 andthe color indication shaft 0 is turnable and slidable in fixedbearings 54. Both shaftsare turnable in bearings 55 and 56 in a connecting member E and theyare both axially movable therewith and thereby when member E is caused so to move by the bell crank lever 50 pivotedat .5I-and connected to the head motion bymember-52.

The stacks and-slides S are arranged in the usual way andeach slide pin pole P for each slide is a member of a multiple contact pole selective transfer slide pin switch B. The other member is: anyone of the combined hand H and .contact members I3 carried by pin shaft 0.

The arrangement and position of four pins and two of such assemblies, each including .a hand and contact member .I3is shown in Figs. 2 and 4. Thesehand assemblies, including H and I3, are so ,positioned with reference to the fingers 6, 6, indicated in Fig.r2,.and carried by the colorindication. shaft Cthat only one fingerv 6 can .be opposite-to or-in front'of a slide S and therefore below its pin P, which serves as a latchfor that slide. Thisarrangement of the color shaft with twofingers to operate four slides is oldiand well known in the industry.

As shown inFig. 3A, there are two hand contact switch members 13 on shaft 0 and two corresponding fingers 6, 6, on shaft C in each case positioned and .slidable in front of twopair of pins Pand two corresponding pairs of slides S, S. The arrangement is such that withtwo pairs of stacks and. slides, there are two fingers such as 6 and two hand contact assemblies such as B, the headmotionbeing so arranged that there cannot bemore than one contact member B in engagee ment with a pin P and the same is true .of the corresponding. fingers 6, 6, with reference to noses. N; N. Withonly two stacks and drop boxes. onlypnefinger 6 and one member B is needed. The arrangement and setting is suchthat only one finger and one hand contact member at any time. can ;be opposite aslide and therefore the transfer circuit can be closed only througha slide pin '1 which has been pulled out and is held out.

Moreover to completely close the transfer electric circuit through a pin P and a member I3 carriejd'by a hand H, together forming the switch B as shownin Figs. 5, 6 and '7, the timing switch A must also be closed and this switch A is so adjusted that it will close only at or near the end of the movement of the drop boxes and of the color indication shaft when both have almost or entirely come to rest. v

This is, set preferably at about eleven oclock, meaning between front and top centre and, in any case, to close the transfer circuit whenthere is no shuttle on the magazine side of the loom.

It is well known that the time interval of the movement of the color indication shaft and its fingers 6 from slide I to 2 is the same as from I to 4 and evenif all four pins are out, the timing switch will not be closed until just before or when ar fingerziizisoverithe:nose of and in front of the slide and stack for the shuttlewithithe colorwhioh.

isnext tostart for the'magazine side.

As shown in Figs- 2 and 4, there is a slot 58 member Ewhichcengages a pin 51 in an arm 59 0f leverz50. Fixed topin operating shaft 0 is an arm 60 with anar-m handle 61 slidable through a pull rod 62 from armature 64 of the solenoid 20 in the feelerccircuitnperable by filling .feelerF. When the .feelerFindicates'near exhaustion, the .solen-z oid.:20iand .these connections turn shaft 0 so that any hand5 on itwhichzis opposite a slide S will pullout arpinzP and allow that slide S to .be lifted by its spring II and: turn its cradle 8.

The color indicationshaft C is also .turnable in the bearing 56 in connecting memberE andis axiallyimovable with shaft 0 as shown bythe dotted lines in Fig.2.

To turn color shaft C, I provide an..arm'.63 on shaft O- connected by a link L to arm I63, Figs. 2,9,10, 11 and *l2, of the dog carrier 35 of oper= ating'assembly-G. This assembly, as shown, is part ofthe :transfer mechanism indicated genera ally by T, which includes a hammer arm 36 with ahammer head 3| to engage a new bobbin in the giveways, the transfer mechanism being pivoted at 32 "to the framed the loom includes another arm 33-to which at 34 acarrier 35'for dog 'D is pivoted, Figsall) to 15. This dogD maybe :of more than ordinary length and dog carrier "35 has a-pin-36 which'connectswith a=dogsetting spring 31 which'tends to pulldown arm I63 and-to lift the dog D up into 'position in front of the'bunter 5 on the lay." This dog D and bunter 5"may' both be of usual length.

Preferably there is a spring pusher I26 carried byarm'i 63 to engage the back of dog D, as shown of dog-D,-if the hunter 5 is located above or level with'the dog carrier and dog pivot'shaft 34 or thedogs mouth I66 "may bedeeper as shown in Fig. 12Ato keep the dog under control.

The feeler and slidepin'switch-circuit is shown in Fig. 8, and includes a feeler F which is grounded, with an arm which does the feeling and when-exhaustion is indicated, closes the cir cuit completely through a wire I43 and solenoid 26 which affectsits armature 64 and through connecting member 62 moves the hands as shown in Figs. 5 and 6.

W is ashipper switch through which the current from-the ground passes, the switch normally being closed; The feeler circuit is closed only longenough to pull out the particular slide pin opposite the particular color which is in the shuttle being felt.

There is a dog pulling pin circuit shown in Fig. 17 including'a solenoid 4| with armature 40 and flexible-connection I39topin 38, solenoid 4| being fedfromth'e source of electricity when switch W is closed butas wires MI and I42 are interrupted by timing switch A, except at a certain predetermined time in the revolution of a shaft such as IIllLthe circuit is not closed even if a member I3jis in contact with a pin P.

When. one of the four switches B is closed and switch A is also temporarily closed, the solenoid 4I pulls a vdog locking pin 38 which releases a dog D as shown in Figs, 9,10,11, 12, 13. When releasedyarm I63 and .linkL turn the color indicating shaft C so that the finger 6 opposite the I particular slide of. the particular color indicated,

dropping a full bobbin of that color stack into 'the giveways.

For convenience and brevity in the claims, the loom of the character described is of the type having a stationary magazine with a plurality of guideways on one side, a single shuttle box under it and on the other side a movable drop box with a number of cells.

The circuit shown in Fig. 8 will be called the feeler circuit, and the circuit shown in Fig. 1'7, as

loom or on every other pick between bottom, front and top centre.

As shown in Fig. 16, the timing-switch A has an arm 88 carried by a clamping collar 86 on a shaft I06, they being adjustable thereon by bolts 85, 85, and there being a double switch member 81, 89 carried by any part of the frame 84. Thereby the exact timing of closing the dog pulling cir cuit shown in Fig. 17 can be regulated.

There is a dog pin 38 which is spring pressed by a spring 39 to engage the back I68 of the dog arm 33 of the transfer T in a position so that it normally locks the dog D in the non-setting position.

Through a flexible connection I39 to the armature 40 of a dog pin pulling solenoid II in the same circuit with a slide pin switch B and with a timing switch A, when this dog pin 38 is pulled out, the dog setting spring 3'! causes the dog D to rise and if, at that time, the lay is going forward between bottom and front centre, the dog D strikes under the bunter 5 and does not get into full setting position, Fig. 11.

To prevent smashes, instead of an adjusting screw, such as shown at 26 in my previous patent,

I prefer to use a spring pusher I26 with a head,

a shank and a spring I 24, Figs. 10, 11, 1.2, to engage the back of the dog this spring acting to allow the link L to do itswork and to allow the resetting of the parts and to do their work with a certain elasticity.

This pusher I26 also yields when dog D strikes under the bunter.

An elastic pad might replace the spring pusher I26 or the dog D might be fixed to the dog carrier member 35 especially if the switch A is so set that the dog is released as the lay is moving back.

When spring 31 moves arm I63 of carrier 35 down to lift dog D, it depresses arm I63, pulls down link L and turns indication shaft C with its fingers 6, 6, from the full line position to the dotted line position shown in Fig. 6, and if a finger 6 is opposite to and above a nose N on a slide S, its cradle is turned and a full bobbin is dumped into the giveways.

The device operates as illustrated in the draw- 1IlgS..

When the feeler F which is at the front of the loom on the magazine side, indicates near exhaustion of a bobbin with a certain color or kind of thread, similar to those in stack No. 2. the feeler solenoid circuit, Fig. 8, is closed through the solenoid 20 which turns pin shaft and hands 1-! and as there is a hand opposite the No. 2 slide, (Figs. and.6) that hand engages a pin P forming part of a pin switch and pulls 10 it out of its slide recess I2 in a slide S which is pulled up by its spring II and remains up until the nose N pulls it down turningthe cradle, thus allowing a full bobbin to drop into the cradle.

The feeler F, Figs. 8 and 8A, closes the feeler circuit only long enough to pull a locking pin P, thus releasing slide No. 2 and as soon as the lay with the shuttle and nearly exhausted bobbin move back, allowing the feeler to pivot back to its usual position, thus opening the feeler circuit, the spring 65'returns the shaft 0, carrying hand H and contact I3 to the position shown in Fig. 5, but that pin P is held in position shown in full lines in Figs; 6 and '7, resting against its slide and being in position where it is engaging contact member I3. If the shaft 0, hand H, and contact I3 are not moved axially, the No. 2 pin and contact I3 have closed the switch B of the dog pin 'circuit but the timing switch A is not closed. If the timing switch A is set at seven o'clock, as the shuttle carrying the nearly exhausted bobbin goes forward on the off magazine side, that switch A is closed completing the circuit with the result that solenoid 4| pulls a dog pin 38 from its position shown in Fig. 10 whereupon spring 3! pulls down on pin 36 causing carrier 35 to pivot on 34 and starts to lift the dog D but the dog hits under the bunter and is-not effective until the next pick, Fig.12.

Link L however has been pulled down by arm I63, turning shaft C and througha finger 6'and nose N spills out a No. 2 bobbin which therefore has a full pick or'perhaps a little more time to drop into and to get settled in the giveways by the time of actual transfer by contact of hammer head 3| with the fresh bobbin. v v

If the timing switch: is set at ten 'oclock, the rising dog may miss the bunter, but as the hunter is going back, the same thing happens and there is no transfer until the next pick.

In my previous patent of April 1, 1947, on Lion Transfer Mechanism, No. 2,418,324,'I show a dog control member marked C and a shaft 26, by which it and the dog are pivoted to the short arm of the transfer while there is an arm which engages a cam 51 to reset the device as that arm moves back. I I I In Figs. 2 and 10 of thisapplication, I show a connecting link R :which near one end is fixed to an arm 10 on shaft C and which near its other end is connected to the long transfer hammer arm 36 through the medium of a slot -'II and pin I2, the connections being such that when the dog pin 38 is pulled out thus allowing the dog setting spring 31 to move the spring pusher member. I 26 against the pivoted dog D, tending to lift it up into setting or engaging position with the-bunter 5, this action also through link L turns shaft C so that if one of its fingers 6 is in. line with any of the slides S, it will immediately depress that slide and drop the bobbin therein into its cradle, ready for transfer.

As shown by the dotted lines in Fig. 9, arms 63 and II! are fixed toshaft C. so that when one is down, the other is up. I

The slot II'in the link R allows the turning of shaft C l by the action of link L with no effect on thehammer arm 30 of the transfer but it does cause a bobbin to be dropped or spilled out of the cradle into the giveways.

When the lay with bunter 5 then first moves back, pusher I26 and spring I24 lift dog D clear of bunter 5 to engaging positionwith bunter 5 and then whenthe lay again moves forward to transfer as shown in Fig. 12, dog Dis heldin place: by :stopl I6 4 and the parts are. moved to "the position shown. in Fig. 12. This forward movement of the bunter and dog causes pin 12'. to-pull down link iR and arm I turning shaft C sand thus moving arm I63 up :with link L causing bIunterJZS to; separate "from dog D, while the-spring pressed vdog pin 38 slides along arm'33 until itv catches behind its-back I68. When the lay Uwithbunter 5 now movesback away from dog Dg theregular transfer returning spring 9 moves the transfer and carrier? to their usual positionythe dog'D tdropping by gravity, and being again engaged by the bunter 126 which has come doW-n'withthe link L to'position shown in Fig. 10. Dog' pin 38 behind arm 33 relocks the dog in place. V

In Figs. l 4, l5,'-I"show-a-simpler arrangement for resetting consisting-of a cam member 80 anda resettingpin 81 on the dog control member in such a position that when the dog goes up to engage the'bunter, this-pin engages the bottom part of the cam 81! and as'the arm 33 carries the member Cand the 'dog'forward on transfer, this causes the dog pin 38 to slide along the side face of the short arm 33-unt'il it drops back of it thus being reset.

'The-dog'D and-'bunter 5 may be so made that when thedog is moved by the dog setting spring 31, it hits under thebunter and is-not entirely set until the next pick when transfer is accomplished as explained.

ffl'o'be sure that nc-current will pass through jthedogpin pulling solenoid 4-I'- except at exactly the right time, I provide'a timin switch 'A which is shownas'operablewith the bottom shaft withcontacts 81, '89, which will engage preferably between-8 and HZ only when there is no shuttle'on the magazine side of the loom. However, if'the timing switch A is set to act at te n oclock-or just-at or past front'center, the dog will start up-as thelay and bunter start back so that'the interval between the dropping of a fullbobbininto'thegiveways may beless but the'result is otherwise the same.

To; allow the contact-of arm-88-of thetiming switch A to be'adjusted-the collar 86 can be moved on shaft, I 00 bybolts85 and so that it an, engage contacts 81' and at the right time and for the'right interval. 7

Bottom'shaft H10 and'timing-switch ,A revolve every two picksand switchA is setto be closed while the boxes are moving between bottom, front and top center with ,no' shuttle under thexmagazine.

For convenience, I will call the pins P from left to right I ,'2,3, '4, and theshuttles carrying the bobbins I, 2,13, 4, in accordance with the slides S which. are opposite the pins iP,

If.the .feeler'indicates.v near exhaustion in the No. 2 shuttle and bobbin and has closed the feeler circuit so that switch B through hand H haspulled out the No. z pin. as shown in Figs. 5, '6, and "7, as this happens on the magazine side 7 between bottom, front and ,top center, and that shuttle has then been pickejdto the box sidebetween. top, back and bottom center, and then comes back, the transfer. is complete because the electrictransfer .switchBis still closed, B engaging P, and ifswitch A-is set for nine o'clock or front centeronthe'boxside, that has completed thegcircuit andithe :dog ..pin 38 has been pulled'thus-turning :color shaft C through link L, causing thenose Ntomove down the slide S. andturning cradle 8,110 idrop'the. No. '2 bobbin into the giveways to wait for the shuttle to 1.2 comeback to thexmagazine-s'ide and to move forward to be transferred at frontcenter on the next pick or forward. movementrofthe. lay.

If however the colorindication has moved the switch B and hand H, awayfromrNozLand also shifted the-boxes so that No. 3 isoppo'site the race H4, and if the No. 3 pm has not been pulled out, no transfer will occur because there is 'nocomplete circuit until eitherNo. -3 'pin is out or. the color indication shifts: back to No-2. Inother words, if there is no immediate change in the color scheme, the transfer will occur when the No. 2 shuttle comes back from. the box side to the magazine side, but if there happens to be a: change at" that, particular time, No. 2- pin will remain out but the dog pin pulling or transfer circuit will not be completely closed even if the timing switch A is closed on every pick or every other pick between bottom, front and top. center.

However, if and when the color indication returns-'the' shuttle of No. 2 withitsnearlyspent bobbin in line with -.the race, that action also again closes the No. 2 switch B and as' the timing switch is set at approximately eightor ten oclock, as the boxes move No;-2 shuttle into position, the complete circuit is made through the'slide pin assembly switch B and the timing switch A whereby thedog solenoid pulls thedog pin which,

through link L, instantly-spills out the full No. 2

bobbin from its cradle into-the giveways 'ready for transfer after the shuttle has-gone back to the magazine side and the lay with the bunt-er has. moved. forwardto engage. thedog-for transfer of the full No.. Zbobbin. from the giveways into the shuttle replacing the nearly exhausted bobbin, of N0. v2. Y

The length of the various links, connecting members, arms. such as3-fl, 19,88, I63, pusher. l 26,

.the locationof pivots, length and locationof slots as well as the shape, size and location of dog and bunter can. bemade, positioned and proportioned-according to the, particular typeor. model of loom. 1

The sequence of operation is that if and when both switches B and A are closed near front centre, .the dog lifting spring. 31 .pulls .down on the arm- I63 of dog carrier. member 35, also on connecting. link L, thereby turningcolor shaft C and moving a finger 6 from the full line position in- Fig. .6 to the dotted line position,.\vhich action drops the bobbin out of the cradleand turns the cradle from receiving position Figs, 6 and'GA to non-receiving position aslshown in Figs. 5 and 5A. This action also allows thepin P to engage slot I2, Fig. 5, thereby limiting the movement of all of the above parts with the dog in the position shown in Fig. 11 under the hunter or if set at eleven oclock, it has ,passed in .front of the hunter as the hunter recedes. This condition prevails until the lay. with the hunter moves forward pushing back the dog andcausing transfer. to the position shown in Fig. 12. The feeler is withdrawn during transfer by wellknown mechanism, not shown, to prevent its'feeler finger from being broken.

As the tension of dog spring 31 is still on, the link L alone would not. lift the. finger 6 into. full line position, Fig. 6, andtherefore'tomove' these 'parts back as well .as the dog pulling pin 38 to be caught at the back I'G8Jof. arm 33, thus lock- .ing carrier 35, it is necessary to use the resetting armR which is pulleddown by the downward movement of the arm 30 of the transfer and through'arm 1.0 on shaft C, arm 63 and link L on arm I63 of dog carrier 35 moves all parts'back "0,0 theposition shown'in'Figs. 2,10 and 14-min dog D dropped to non-setting position or to use a device such as shown in Fig. 14 and Fig. 15.

I claim:

1. In a loom of the character described; a plurality of cradle actuating slides each comprising a spring to move a cradle to bobbin receiving position and including a locking recess for a slide locking pin and a cradle discharging nose; an electrically operable bobbin exhaustion filling feeler in a feeler circuit with and to energize a feeler solenoid operable therein; slide locking pins on the magazine, each spring pressed to engage a recess in a cradle slide; the feeler circuit including a multiple pole selective transfer switch having a locking pin as a pole for each slide and means operative by the feeler and solenoid in the feeler circuit to indicate transfer by pulling out a pin; a pin shaft slidable with the color indication shaft from the color indication mechanism and turnable by the solenoid operable from the bobbin exhaustion feeler, said shaft including hands each above a finger on the color indication shaft to disengage each locking pin frofn a slide locking recess, said hands and the looking pins being contact poles of the multiple pole selective transfer switch which is in a transfer electric circuit including a transfer solenoid; in

combination with means between a transfer hammer dog and the color indication shaft to turn the color indication shaft and cause a finger to operate a slide to discharge a bobbin from its cradle in the magazine into the giveways; and a transfer circuit timing switch to open and close the transfer circuit at a predetermined time in a period of two picks through one of the branches of said multiple pole selective transfer switch whereby to turn the color indication shaft to so drop a bobbin and to start the dog setting means in operation.

2. In a magazine loom of the character described having a magazine with a plurality of guideways each for a stack of bobbins and each provided with means to release a bobbin operable by a turnable bobbin release shaft slidable with a turnable and slidable color indication shaft,

together with a lay and a hunter carried thereby; an electric filling feeler circuit including a source of electricity, a filling feeler switch, a feeler solenoid and connections to so turn the bobbin release shaft as to release a bobbin from a stack and to set a pole of a transfer circuit switch in a transfer circuit; a transfer assembly comprising a hammer arm, a dog carrier with a dog pivoted thereto, means to move the dog to setting position and dog holding means to hold the dog out of setting position releasable by a dog controlling solenoid in a transfer circuit; means connecting the dog with and to turn the color indication shaft; such transfer circuit including a source of electricity, the dog controlling solenoid to release the dog and to allow it to start for setting position, the transfer circuit switch and a timing switch operable at every second pick to close such transfer circuit through the dog controlling solenoid between bottom, front, and top centre on the off magazine side of the loom on each pick before transfer.

3. In a loom of the character described including a transfer hammer with a spring pressed dog pivoted thereto and locking means for the dog; a feeler circuit including a multiple pole selective transfer circuit switch and a feeler solenoid; a shaft turnable by the feeler solenoid and movable axially with a color indication shaft to move a slide and cause a cradle to receive a bobbin and to set a pole of the multiple pole selective transfer circuit switch for that slide; a transfer circuit including the multiple pole transfer circuit switch, a transfer solenoid and a timing switch to open and close the transfer circuit at a predetermined time in a period of two picks through one of the poles ofv the multiple pole transfer circuit switch; the transfer solenoid to release the spring pressed dog of the transfer hammer; and means between the dog and the color indication shaft to turn that shaft to move a slide and cause a cradle to release a bobbin.

4. In a loom of the character described including a transfer hammer with a spring pressed dog carrier member carrying a dog and pivoted to the transfer hammer and locking means for the dog, a feeler circuit including a multiple pole selective transfer circuit switch and a feeler solenoid; a shaft turnable by the feeler solenoid and movable axially with a color indication shaft, to move a slide and cause a cradle to receive a bobbin and to set a pole of the multiple pole selective transfer circuit switch for that slide; a transfer circuit including the multiple pole transfer circuit switch, a transfer solenoid and a timing switch to open and close the transfer circuit at a predetermined time in a period of two picks through one of the poles of the multiple pole selective transfer circuit switch; the transfer solenoid to release the spring pressed dog carrier member of the transfer hammer; and means between the dog carrier member and the color indication shaft to turn that shaft, to move a slide and cause a cradle to release a bobbin.

5. In a loom of the character described including a transfer hammer with a spring pressed dog carrier member carrying a dog and pivoted to the transfer hammer and locking means for the dog, a feeler circuit including a multiple pole selective transfer circuit switch and a feeler solenoid; a shaft turnable by the feeler solenoid and movable axially with a color indication shaft, to move a slide and cause a cradle to receive a bobbin and to set a pole of the multiple pole selective transfer circuit switch for that slide; a

transfer circuit including the multiple pole transfer circuit switch, a transfer solenoid and a timing switch to close the transfer circuit at a predetermined time in a period of two picks through one of the poles of the multiple pole selective transfer circuit switch between bottom, front and top center, when there is no shuttle on the magazine side of the loom; the transfer solenoid to release the spring pressed dog carrier member of the transfer hammer; and means between the dog carrier member and the color indication shaft to turn the shaft, to move a slide and cause a cradle to release a bobbin.

6. In a loom of the character described including a transfer hammer with a spring pressed dog carrier member carrying a dog and pivoted to the transfer hammer and locking means for the dog, a feeler circuit including a multiple pole selective transfer circuit switch and a feeler solenoid; a shaft turnable by the feeler solenoid and movable axially with a color indication shaft, to move a slide and cause a cradle to receive a bobbin and to seta pole of the transfer circuit switch for that slide; a transfer circuit including the transfer circuit switch, a transfer solenoid and a timing switch to close the transfer circuit at a predetermined time in a period of two picks through the poles of the transfer circuit switch, when there is no shuttle on the magazine side 115 of the loomfthe'transfer solenoid to release the spring pressed dog carrier member of the transfer hammer; and means between the dog carrier "member and the color indication shaft to turn that shaft, to move a slide and cause a cradle to release a bobbin.

"7. In aloom' of the character described, a plu- "ra-lity' of spring pressed cradle actuating slides each to'operate a cradle for a guideway; means to release and lock each slide, such means forming one slide contact pole of a multiple pole selective transfer switch, such switch including a contact hand to engage each of such slides contact poles and being carried by an operating shaft-axially slidable with the color indication shaft and turnable by connections operable by afeelerelectric circuit solenoid, interposed in :a'feeler circuit, when the circuit is closed by a bobbin filling exhaustion feeler, the hand including another contact pole of the transfer switch, one'of the contacts of which it'sets insuch a manner that when one of-the slide contact poles is'engage'd by a hand, it closes one branch of the transfer electric circuit which passes through the transferswitch, a timing: switch-and through atransfer circuit solenoid'which sets in motion means to start the dog towards setting position 'andmeans to' turn" the color indication shaft to operate a'sli'de insuch a manner as to drop a bobbin into the giveways; said transfer solenoid "andsaid timing switch operating to close the transfer circuit at 'a predetermined time in a period cf'two picks'toset in motion means to so'operate 'the'color indication shaft and dog only whena slide pole and a contact hand of the transferswitchareengaged.

8.In"a'bobbin=changing' loom having a statlonary 'framean'd' a movable lay, a bunter carried'by the lay on'the magazine side to engage the free end of a dog, a magazine holding two or'more'bobbinsan'd including devices to hold afull bobbin f'or'transfer, a shuttle box carried by the lay to be in position under the full bobbin holding means, bobbin-transfer mechanism in- "cluding a transfer hammer having an arm to engage said 'full bobbin and a dog holding arm; a dog freely pivoted to-the dog holding arm; adog 'carrier'member carried by and movable with the 'transfer'hammer, said member including means toso move it-and the dog as to cause the dog to move to'bunter engaging position; astop to check thedo'g'in bunter engaging position; spring actuated means to 'hold'the dog out of the path of the'bunter; a solenoid including an armature and-a connection from the armature tothe means .to'hold the dog; said solenoid being ina transfer circuit includinga timing switch to close the transfer-circuit whereby the'dogis released at a predetermined time'in a period of two picks between bottom, front and top center when there is noshuttle on the magazine side of the loom;

9. Ida bobbin-changing loom having a stationary frame and amovable lay, a bunter carried by the lay on the magazine side to engage the free end of a dog, a magazine holdin two ormorebobbins and including devices to hold a full bobbin'for transfenashuttle box-carried by the lay to be inposition under the full bobbin holding mean-s, bobbin. transfer mechanism'ineluding a-transfer hammerhaving an arm toengage said full bobbin and a dog holding arm; adog freely-pivoted to the dog holding arm and movable with the transfer hammer; means to so '16 move the dog as to cause the dog to move bunter engaging position; a stop to check the dog in bunter engaging position; means to hold the dog out of the path of the bunter; a solenoid including an armature and a connection from the armature to the means to hold the dogserving to release the dog, said solenoid being in :a transfer circuit includin a timing switch to close the transfer circuit at a predetermined time in a period of two picks between bottom, front and top center when there is no shuttle'on the magazine side of the loom;

1.0. In an automatic shuttle shifting and bobbin transfer loom having a stationary frame, a movable lay carrying a bunter, a transfer hammer pivoted on the frame including a head, a pivoted dog, means to set the dog for transfer, a dog holding pin operable by a transfer solenoid to release thedog and allow it to move to engaging position with the bunter carried by the lay, a bobbin magazine fixed to the frame witha plurality of bobbin supporting guideways, each guideway having a bobbin receiving and discharging cradle at the bottom operable by a slide having a nose, there being giveways from 7 under the cradles to the bobbintransfer position under the bobbin transfer hammer head, a shuttle box on the magazine side, and 'a shifting shuttle box on the other side witha plurality-of cells, a color indication shaft having fingers to engage the noses on the slides, the shaft being turnable to move the selected-slide and c-ausezthe corresponding cradle to release a bobbin, "said shaft being axially slidable by a color indication mechanism, said cradle actuating slides each comprising a spring to move a cradle to "bobbin receiving position'and including a-locking. recess for a slide locking pin and the nose; anelectrically operable bobbin exhaustion filling feeler in a feeler circuit with and toenergize a feeler solenoidoperablein the feeler circuit; slide lockpins on the magazine, eachspring pressed to engage a locking recess in a cradle.-slide; .-a pin shaft parallel to and slidable with the color indication shaft from the color indication mechanism and turnable by the feeler solenoid, said shaft including hands each above a finger on the color indication shaft to disengage each looking pin from its slide locking recess, said hands and the locking pins forming contact poles ofa multiple pole selective transferswitchin a transfer electric circuit through a'transfer solenoid; said transfer solenoid and means between the transfer hammer dog and the color indication shaft toturn the color indicationshaft andcause the appropriate finger to depress the nose of a slide and to-discharge a bobbinrfromits cradle in the magazine into thegiveways and at the same time. to allow the slide locking pin to relock the slide; and a transfer circuit timing switch to close and open the transfer circuit at a predetermined time in .a period .of two picks and to start the dog setting means in operation.

JOSEPH REFERENCES CITED The following-references are of record in the file of this patent:

UNITED STATES PATENTS

Images