US2365362A - Magazine loom with feeler at the front of the magazine - Google Patents

Description

Dec. 19, 1944. STUER 2,365,362

MAGAZINE LOOM WITH FEELER AT THE FRONT OF THE MAGAZINE Filed March 5, 1940 5 Sheets-Sheet l FIE.1.

INVENTOR.

Dec; 19, 1944. ER 2,365,362

MAGAZINE LOOM WITH FEELER. AT THE FRONT OF THE MAGAZINE Filed March 5, 1940 3 Sheets-Sheet 2 V [my BY J) /g%NTOR.

/?MWW- ATTORNEY.

J. STUER Dec. 19, 1944.

MAGAZINE LOOM WITH FEELER AT THE FRONT OF THE MAGAZINE 3 Sheets-Sheet 5 Filed March 5, 1940 INVENTOR.

" ATTORNEY.

.of the bobbin which is near depletion.

Patented Dec. 19, 1944 UNITED MAGAZINE LOOM WITH FEELER AT THE FRONT OF THE MAGAZINE Joseph Stuer, Lawrence, Mass.

' Application March 5, 1940, Serial No. 322,308

Claims.

This invention relates to automatic looms. There are plain looms attached to each of which is a magazin for holding a substantial number of bobbins, such magazine being of the rotary or the fixed type, the magazine being associated with a feeler which is brought in contact with a bobbin in a shuttle, usually when the lay beats up, the parts being so arranged that when the thread or filling on the bobbin in a working shuttle has almost run out or is near depletion, the feeler moves in a different way from when the bobbin is full and sets the transfer devices in such a way that a new, full bobbin is forced into the shuttle, thus forcing out the old bobbin and taking its place. This is called a transfer.

There are'also looms in each of which on either one side or both sides, there is a movable shuttle box with a number of cells, each to receive a shuttle when it is picked across on the lay beam.

Pattern mechanism is provided to move the boxes on either one side or both sides to bring the desired cell or cells to the level of the race on the lay beam to discharge or receive a shuttle. These shuttles may be provided with bobbins, the thread of which is a different color or quality or the bobbins in all the shuttles may contain thread of substantially the same character.

As a rule with such fancy looms, when a bobbin is near depletion or exhaustion, the loom must be stopped and a new bobbin put in its place by hand. With such looms there is no need of a feeler or of transfer mechanism.

There are also looms in which on one side there is a shifting shuttle box or drop box with a plurality of shuttle cells while on the other side there is a single stationary shuttle box associated with a magazine and feeler and transfer device, the magazine containing, if desired, bobbins of diiferent colored thread, there being also a provision for indicating that the bobbin of a particular color or kind in a particular shuttle is near depletion so that a. full bobbin of the same charatcer can automatically take the place Such looms are provided with what is known as a color uniform cloth. This is accomplished in various ways, one way being shown in patent to Baker for Loom for mixing filling, No. 2,093,629, September 21, 1937.

My present device is for the purpose of providing a loom in which there are three or more shuttles which follow one another in picking in a pie-arranged sequence, there being on one side a drop box or movable shuttle box having a plurality of shuttle cells, preferably four, while on the other side, there is a movable shuttle box or drop box with two cells in a position under a bobbin magazine. As shown, this magazine is not of the rotary type but of the fixed type with a plurality of vertical bobbin guide ways associated with What are known as cradles, one at the bottom of each guide way, and vertical slide bars each of which operates a cradle together with a transferrer, all similar to another application of mine pending herewith on Bobbin transfer mechanism for looms withstationary magazine, filed June 29, 1940, Serial No. 343,230.

The particular feature of this invention is the use of a feeler on the magazine side of such a loom but at the front instead of at the back with the feeler moving up and down in the body of the loom in accordance with the up and down movement of the shuttle box under the magazine. This feeler follows the top cell of this box under the magazine.

As shown, I use'such a feeler on the front on the magazine side associated with and oiperating actuator mechanism similar to that shown in my pending application for United States Letters Patent Serial No. 250,055, filed January 24, 1939, except that in that application, the device is shown as operating a cutter and a transfer dog with a rotary magazine while indicating mechanism which causes the bobbin of the right color to be transferred into the right shuttle.

It has been found that even two bobbins from the same spinning and twisting frame differ somewhat and it has been found desirable to have these shuttles, even with the same thread, alternately picked across as this produces a more in this, it is used with a fixed, multiple guide slot magazine and with movable shuttle boxes or drop boxes under such a magazine. The purpose of this device is to release such an actuator from a trigger arm which normally holds it and the actuator spring out of action.

I can use a feeler with a mechanical connection to this trigger arm or I can use a feeler which closes a switch in an electric circuit which circuit operates a magnet or solenoid which disengages such a trigger arm.

I will call the stationary loom structure including the ends, braces, stud shafts and breast beam, the loom body to distinguish that part from the lay and the other moving parts.

With any of the usual shuttle shifting arrangements, the sequence of the shuttles in any particular box can be arranged as in the patent to John J. McCann and to myself, Joseph Stuer, July 11, 1939, No. 2,166,071. In that case, a shuttle box with two cells under a rotary magazine is used Where in this case, a box with two cells under a stationary magazine is used. In this application the feeler is at the front while in the Patent No. 2,166,071, it is at the back.

In operating this device as shownfor a single pick loom, there is a shuttle in the bottom box when the shuttle to be felt is picked into the top box. The lay moves forward and. the shuttle in the top box moves up, being felt as. it moves, and when the lay moves back, the shuttle in the bottom box is picked so that whenthe lay again moves forward and the transfer is accomplished in the top box, there is no shuttle in the bottom box.

The time interval between feeling and transfer is, therefore, almost exactly'one complete picking interval including the time between. which the lay moves slightly forward and then back and then almost to the front.

From the start, of feeling to the end of transfer is-slightly more than'one'full pick.

In the drawings; Fig. 1 is a diagrammatic front elevation of' a well known type of loom with movable dropboxeson each side and a station ary magazine, therebeing two boxes only on the magazine side, this being the preferred arrangement for my attachments, the working parts being broken away to expose the background.

Fig. 2' is an isometric view'from' the front left of a loom with my devices in place.

Fig. 3 is an elevation from the right of a transferrer and its'dog when the dogi's first engaged by the bunter in full lines, and in dotted lines showing the extreme movement of the bunter and dog during transfer.

Figs. 4' and 5-- are details asfrom the leftsh'owing the position of theactuat'or, dog and'bunter before and after the actuator is releasedfrom the trigger arm.

Fig. 6=is a detail= partly in section'as'from' the back showing one of the magazine slides and withthe paddle wheel which moves it.

Fig. 7 isa detailshowing the two pawls'which control the movement of the'paddle' wheel and shaft.

Fig. 8 is a detail showing; the-preferred type of rocker arm and trigger arm in full lines in" the normal position and in dotted lines after the actuator has-been'released'.

Fig. 9- is a plan view ofa feeler with its top plate removed. In fulllinesit shows thenormal position of the feeling finger and in dotted lines its position when it is pushed-back and in-other dotted lines, when it slips on a bobbin;

Fig. 1015 a plan view of a feeler when' itsslide. and feeling finger are retracted during'transfer.

Fig. 11 is an elevation'as from the right showing the manner in which the feeler slide ismoved up and'down.

Figs. 12 and 13.. are side elevations similar to where the rocker arm hasreleased the ,dog. and the dog has just come up. into transferringposition while the dotted lines show the feeler slide withdrawn by the transferrer at the end of its transfer action on the next pick after the one shown in full lines.

Fig. 14 is a diagram somewhat similar to Figs. 4 and 5, showing a trigger arm released by a solenoid the electric circuit through which is controlled by a feeler carrying contacts.

Fig. 15 is another diagram showing a feeler of the electric contact carrying type in another location.

L is the lay while 9 is the race. A represents the shuttle box assembly on the side of the loom opposite the magazine including the cells; 3, 4, 5, 6' vertically movable by mechanism indicated by 7.

C represents the shuttle box assembly of two shuttle cells I and 2 which are movable vertically by any usual mechanism, such as 3.

M is the magazine with four vertical guide ways; 2|, 22, 23 and 24, the bottoms of which come together at 25 so that a bobbin can slip or roll down to that position on runways. The bobbin shifting is obtained by means of cradles such as D at the bottom of the vertical part of each guideway each operated by one of the four slide bars, P, P, P, P. This construction is substantially the same as usual but my control devices are as follows:

G is the sliding shaft of color control which is caused to rotate step by step by a ratchet moved by pawl 4i pivoted to the link rod N and 42 is a check or look gravity pawl so that where, as shown, there are eight teeth on the ratchet, it is moved one-eighth of a revolution by the pawl 4| and then held in that position'by pawl 42,

44, 45, 4B and ill represent paddles fixed to this shaft G each having fingers extending in opposite directions. These fingers are so arranged as shown in Fig. 6, that their ends 52 are one-eighth of a circumference apart. On each slide bar P is a nose such as and each slide bar P is normally held up-by a spring such as 5|.

As shown in Fig. 6, preferably one paddle finger is normally horizontal and rests on a nose 50 so that as it moves down, it moves a bar P down but releases it before such finger has moved is moved step by step, the end 52 of one of the fingers will move forty-five-degrees engaging a nose 50 on a slide bar P moving it'down against its spring 5| whereby it rocks one of the cradles D thereby spilling outthe bottom bobbin on that particular runway but when the end 52 passes beyond the nose 50 it allows the spring 5| to return the slide P to its usual position. This allows the cradle D after dropping the bobbin, to turn back into a position to receive the next bobbin above.

As shown, each cradle. is pivoted and has a pin 28 which enters a' slot 29. carried by a slide P, the slot being of such Lv shape that when the slide is forced down, the: cradle tips. out its bobbin and when the slide moves up, the cradle moves into receiving po'sition,all in a'well known manner.

To operate the pawl 4i and the ratchet til, I pivot the pawl 4i to-the link N which extends from the revoker shaft 48 to an adjustingslot in arm I I of actuator O so -that it is moved up'and down with. the actuator O. This actuator O is free to move on astud i land has another arm l2 which connects by rod it with" the cutting mechanism lllll.

' around and down and then towards the back and ends at It in a position to engage a stud ll carried by the transfer dog 26 pivoted at 18 on the transferrer H and extending back at id in a position to be engaged by the bunter 29 carried by the lay L when the lay heats up provided this part 19 of the transfer dog is lifted when the spring I is allowed to operate. This spring it provides the motive power for actuator O and tends to move it to the position shown in Fig. 5.

This spring ill is prevented from operating by the latch arm fill. The end of arm Ell engages a notch B! on a trigger arm K pivoted. at 62 and must be released to permit spring ill to move the arms H, l2, and it.

To release this arm I can use various devices operated from a feeler at the front of the magazine which moves with its top cell.

As shown, a mechanical feeler F or an electrical feeler 3! is carried by a slide "ll vertically slidable in a guideway in a bracket l8 fastened to the loom body J. This slide is caused to move up and down with the top cell l of shuttle box assembly C by a rod It which connects slide Tl with the bottom of mechanism 8, which raises and lowers the assembly C in a well known manner, the bottom of rod l9 being pivotally connected to mechanism 3 near the bottom and near the pivots of the lay.

I can use a feeler F as shown in 9, of a known type with a feeling finger ill pivoted at H and carried by a slide E2, the finger It being connected to a plate l3 which, when the finger ll) slips on the bare bobbin and moves on its pivot H is projected under the end "it of a rocker R pivoted at IE on the body J of the loom and extending out at E6 over the free end $9 of the trigger arm K and preferably around it in a loop so that both must move up and down together. When feeler finger it pivots and plate i3 is moved under the end of t.-e rocker ,arm, as feeler F is carried by slide '5'! and as the top cell I of this assembly is still moving upward, this plate 13 rocks the rocker arm and releases the trigger arm K.

As shown in Figs. 14 and 15, I can also use a medially pivoted trigger arm 86, with a notch 8i and connected by a wire 82 with a solenoid device which is connected to and controlled by a feeler device 3! including a switch 32 to open and to close the circuit indicated by 33. The feeler device Si is at the front of the magazine and movable up and down with the top cell i, being carried by a slide such as '17 as in the mechanical construction.

In either construction, a pin l'i2 on the transferrer H can engage a pin H3 on a slide such as 12 and pull the feeler finger such as 'lll out of the shuttle during transfer.

When this feeler 3| slips on the bare barrel of a bobbin it closes a circuit for the solenoid 3B which pulls the wire 82 and lifts the end 83 of this trigger arm 88 thus depressing the other end 84 and releasing the end of the arm 66 from notch 8i thus permitting the spring ill on stud M to lift the arm I! with the link N and pawl 4! and turn the shaft G one-eighth of a revolution and at the same time causing the part I6 of the actuator O to engage stud ll thus swinging upward the dog 26 of the transferrer H into position to be struck by the bunter 20. As the hammer part 21 of the transfer mechanism, which forces the new bobbin into the shuttle, is connected to and operated by this dog 26, the bobbin is transferred. As it is necessary to reset the parts by moving the arm fill back to be engaged'by the notch Bl or 8|, I provide a light spring 66 on arm K.

' When the feeler releases the trigger arm from the actuator O, the actuator 0 moves instantly to set the parts for transfer and transfer is accomplished by the bunter 20 on lay L engagin dog 26 on the next pick. As the lay continues to move forward during transfer, the bunter and dog move the arm E3 of the actuator forward and arm 12 and link [5 back which allows the arm til to again be engaged and held by the notch ti or Bl on trigger arm K or 80. As the lay moves back,

dog 26 no longer engages bunter 29 and drops from the dotted line position to the full line position shown in Fig. 4 and the parts are now reset.

The bunter 20 and dog 26 can be so adjusted that the bunter is moving down in an arc and, during transfer, the dog is moving with itso that the box C is being held up by the dog as well as by mechanism 8.

The action of bunter 26 on dog tip it and dog pivot l8 and dog stop H6 is such that, as shown in Figs. 3 and 13, pivot I8 is resisting the downward, forward pressure of bunter 2D and is therefore holding up box mechanism C.

This arrangement of a dog pivoted to a transferrer arm with a bunter carried by the top of a drop box at a point higher than the dog pivot can be used under any type "of magazine.

The feeler, the transfer dog; rocker arm and bunter must all be correctly adjusted with reference to each other because if the rising feeler moved the rocker arm or solenoid too soon thus releasing the trigger arm and allowing the actuator to throw up the dog, this dog might hit the bunter before it moved back from its extreme forward position.

In Fig. 12, in full lines, is shown the position of the dog at the time when the feeler first comes in contact with the bobbin in the shuttle. In the dotted position is shown the feeler, the shuttle and the bunter as they move upward, the bunter and shuttle moving also forward. The dotted lines show the extreme forward position of the bunter, the dog then still being in the down position.

In Fig. 13, the feeler has moved up a still greater distance and in so doing has brought pin I13 up behind pin H2 and has tripped the trigger arm K and has started the arm I3 of actuator O to throw the dog up into position for transfer. In the meantime, however, the shuttle and the bunter have been moving up and back so that the bunter has moved back just out of the path of the dog as shown in Fig. 13. After this, the lay shuttle and bunter continue to move further back and then on the forward movement during the next pick, the bunter engages the dog forcing it and the transferrer back to accomplish the transfer and also moving back pins I12 and I13 and the slide 12 of the feeler carrying the feeling finger 'Hl so as to take it. out of the shuttle.

If the feeler is at the back of the magazine, it moves when the lay is in the back position and sets the parts for transfer so that as the lay beats up, the transfer could be made immediately if the shuttle with the bobbin to be transferred was in the right position at the front of the loom but the time interval is so short that I find it desirable and in this application do arrange the feeler on the front side below the magazine and so movable as to follow the top cell and to indicate transfer near the forward movement instead of near the back. With this arrangement,

mechanically connected can be used to trip or cock any one of many transfer or other mechanisms of any loom and I claim it broadly as a new actuating device, but as limited by the numbered claims for any loom with a vertically movable multiple cell drop box under a magazine. It

can be used to operate the gate of the well known chopper action.

' I claim:

1. The combination in an automatic loom having a stationary magazine carried by the loom body on one side with a plurality of bobbin giveways and with bobbin transfer mechanism cooperating with the magazine, together with a vertically reciprocating'shuttle box at each end of the lay and carried thereby, each box having a plurality of shuttle cells, at least two operating shuttles and mechanism to move each shuttle box; the bobbin transfer mechanism including a dog pivoted to a transfer arm with a stop for the dog fixed to the transfer arm, and a bunter carried at the top cell of the shuttle box on the magazine side in a position higher than the dog pivot to engage the free end of the dog, of a feeler slidably mounted on the loom body at the front of the magazine, means to move the feeler in timed relation to the rising and the falling movements of the top cell of the shuttle box on the magazine side; actuating mechanism including a spring to move the transf'er mechanism to transferring position which actuating mechanism is held out of action by a trigger arm; and said trigger arm; with connections actuated by and connected to'the feeler between the feeler and the trigger arm to release the trigger arm from the actuating mechanism.

2. The combination in an automatic loom having a stationary magazine carried by the loom body on one side with a plurality of bobbin guideways and with spring stressed bobbin transfer mechanism cooperating with the magazine and normally held out of transferring position, together with a vertically reciprocating shuttle box carried at each end by the lay and carried therei by, each shuttle box having a plurality of shuttle cells, at least two operating shuttles and mechanism to move each shuttle box, the bobbin a transfer arm and a bunter carried the parts are set for transfer during one forward transfer mechanism including a dog pivoted to a transfer arm with a stop for the dog fixed to the transfer arm, and a bunter carried at the top of the shuttle box on the magazine side in a position higher than the dog pivot; of a feeler slidably mounted on the loom body at the front of the magazine, means to move the feeler in timed relation to the rising and the falling movements of the top cell of the shuttle box on the magazine side; with mechanism, actuated by and connected to the feeler, to releasethe bobbin transfer mechanism when the feeler indicates near exhaustion of thread on a bobbin and to initiate action of said mechanism; and mechanism to drop the bottom bobbin in some one of the magazine guideways into position to be transferred.

3. In a bobbin-changing loom using a plurality of shuttles and having vertically shifting shuttle boxes, a reserve bobbin magazine and a weft feeler all at the same side of the loom; bobbin transfer mechanism including a dog pivoted on a transfer arm and a stop to limit its upward pivotal movement on the transfer arm, and a bunter carried at the top of the shuttle boxes on the magazine side in a position higher than the dog pivot to engage the dog; a vertically movable member at said end of the loom connected to the shifting shuttle boxes to rise and fall as said shuttle boxes rise and fall, said weft feeler mounted on said movable member for movement therewith to detect the weft in the upper shuttle box, as the latter rises; and mechanism set in action while the weft feeler is moving vertically when weft exhaustion is indicated thereby to move the dog into position to be engaged by the bunter.

4. In a bobbin-changing loom using a plurality of shuttles and having a reserve bobbin magazine and vertically shifting shuttle boxes under the magazine together with a weft feeler; bobbin transfer mechanism including a dog pivoted on a transfer arm and a stop to limit the upward pivotal movement of the dog on the transfer arm, and a bunter carried at the top of the shuttle boxes on the magazine side in a position higher than the dog pivot to engage the free end of the dog.

5. In a bobbin-changing loom using a plurality of shuttles and having a reserve bobbin magazine and vertically shifting shuttle boxes under the magazine, together with a weft feeler; bobbin transfer mechanism including a dog pivoted on at the top of the shuttle boxes on the magazine side in a position higher than the dog pivot to engage the free end of the dog.

JOSEPH STUER.

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