US1442872A - garey - Google Patents

Description

Jan. 23, 1923. 1,442,872

J. P GAREY, .SPINNING FRAME AND THE LOKE.

ORIGINAL FILED JULY \6. 1919 Exams-sneer 1 Jan. 23, 1923. 1,442,872

P. GAREY.

J. SPINNING FRAME AND THE LIKE. ORIGINAL F: LED JULY 16 1919. 2 s EEEE SSHEET 2 Patented Jan. 23, 1923.

UNITED STATES PATENT OFFICE.

JOHN P. GAREY, OF ELHIRA, NEW YORK, ASSIGNOR T0 ECLII'SE MACHINE COMPANY. OF ELMIBA, NEW YORK, A CORPORATION OF NEW YORK.

SPINNING FRAME AND THE LIKE.

Application filed July 18, 1919, Serial No. 811,221. Renewed December 13, 1922.

To all whom it may concern:

Be it known that I. JOHN P. GARRY, a citizen of the l nited States. residing at Elmira. in the county of Chemung and State of New York, have invented certain new and useful Improvements in Spinning Frames and the like. of which the following is a specification.

My invention has for its object to reduce the waste of spinning fibre and injury to the machinery of the frame due to the breakage of the rovings during spinning. In spinnin frames, to which my invention is particu arly applicable, two or more strands or rovings are drawn from a corresponding number of supply bobbins. united and passed through a set of drawin rolls by which the rovings are lengthened ut re duced in body. From the lust pair of drawing rolls the combined roving passes to a bobbin upon a revolving spindle upon which it is wound. but first passes through a-guide eye concentric with, or in the line of the axis of the spindle. and thence through a traveler whereby the proper twist is given to the yarn. The individual strands or rovings and the joint roving or yarn. especially before the twist has been given to the latter in the machine, are quite irregular and weak and frequently break either in the drawing rolls while undergoing the drawing operation. or after leaving the rolls and before bcing wound upon the bobbin. As the rolls continue to revolve after such a breakage the loose end of the roving or rovings, which continues to be drawn by the drawing rolls, winds, either about one of the drawing rolls or the scavenger roll until it is discovered or pcrhaps becomes entangled with an adjacent roving. As each operative has undcr inspection a very large numbcr of such spinning units. it frequently happens that thc breakage of a roving is unobserved until a considcrablc quantity of fibre has accumulated on the roll. damaging the other member of the pair of rolls and rcquiring to be removed and wasted or rcturncd with the supply of raw material to be again rcproduced. 'hen the loo e end bccomcs cntangled with an adja cnt tlpcad the latter becomes irregular and is rcndcrcd unfit for its intended use.

Numerous attempts havc bccu made in the prior art to avoid this diiliculty by the provision of means for severin the roving between the supply spools and t e back pair of drawing rolls whenever the roving is broken beyond the latter. Commonly a knife. clamp. or other severing means is so arranged as to part the roving before orlin advance of the bite of the first pair of drawing rolls. the device. however, being normally held out of engagement as long as the roving is intact between the drawing rolls and the guide above mentioned by a trigger or finger engaging the rovin between the rolls and guide. As the t read or roving is rather weak and irregular any considerable pressure of the trigger or feeler against the same so greatly Increases the strain and frict n due to th guide as to cause a great many additional breakages. For this reason devices of this character have never gone into general use in spinning machinery.

It is the purpose of my invention to rovide a device of this character which wi l be certain and delicate in operation so as to insuresthc scvcring of the roving'between the supply and the back pair of drawing rolls when breakage occurs beyond that point. but which will not materially increase friction or strain upon the joint roving over tric guide alone. and will therefore not resultin an increased number of breaka es.

it comprises a severing device maintaine in normal position by a latch so poised that thc breakage of the yarn alone is not sulficicntto cause it to release the severing device without some impulse such as the vibration of the machine or a slight pressure such as provided by the means hereinafter described. The guide eye by which the roving or ya rn is directed to the spinning mech anism proper is carried by the latch or trigger which controls the seVcring device and constitutes the only point of contact with the yarn between the drawing rolls and the traveler of the spinning ring. thus dispensing with one of the points of contact found in )revious spinning mechanisms equipped wit 1 severing means. The pressure of the eye upon the roving is no greater than that whcrc no severing means is employed. by reason of thc construction of the latch and severing means hereinafter (lkStlilltXl. Another feature of the invention of great practical importance is the manner of mounting the thread guide which facilitates dotting and also prevents the accumulation of fibres in the neighborhood of the spinning mechanism where they are apt to become entangled with the rovings and break the same or make them irregular and therefore of inferior value. v

For the purpose of exemplification and illustration I have shown in the accompanying drawing and described in the following specification, preferred embodiments of my invention as applied to spinning frames of ordinary type.

It will be understood that the invention is not confined to spinning frames or to the particular form thereof shown, but it is applicable to other forms of spinning frames, drawing, twisting and doubling machinery and a great variety of mechanisms'where similar conditions prevail, and therefore when reference is made to spinning machinery it is to be understood as including such equivalent or similar machines as fall within the scope of the invention as defined in the claims, in which I have endeavored to distinguish the invention from the prior art so far as known to me without, however, relinquishing or abandoning any portion or feature thereof.

In the accompanying drawings Fig. 1 is a vertical section through a spinning frame equipped with a preferred form of m invention; Fig. .3 is a fragmentary front e eva tion with parts removed for clearness of illustration, showing one of the severing de- "vioes and controlling mechanism; Fig. 3 is a fragmentary plan view of a detail partly in section; Fig. 4 is a plan view of a portion of the latch showing the guide; Figs. 5 and 6 are vertical sections on an enlarged scale and at right angles to each other of a detail; Fig. 7 is a. vertical section similar to Fig. 1 of a second form of the invention,

and Fig. 8 is a similar view of the third form.

Each part and element of the construction is identified by the same reference character wherever it is shown in the several views Referring now to the form of the invention shown in Figs. 1 to 6 inclusive, the spinning frame may be and is shown as of an ordinary type, comprising frame members, including board 10, on which are arranged a large number of spinning units. The spinning mechanism proper comprises a spindle l1, rotated by suitable mechanism not shown, on which is mounted a. spool 12 to receive the roving or com leted yarn, a.ring board 13 constructed and arranged to be reciprocatcd vertically to carry the ring 14 and traveler 15 thereon longitudinally of the spool during the u inding operation. The usual drawing rolls are shown at [6, wmprising three pairs of rolls 16, 16 and 16" revolved at progressively increasing speeds so that the yarn or roving is drawn or lengthened by the relative movement of the fibres between successive pairs of rolls. Supply bobbins 17 of which there are commonly two for each set of drawing rolls and Spinning mecha nism, are mounted, behind the drawing rolls in position to feed the rovings thereon to the bite of the rolls. Rovings l8, 19 from the respective bobbins of each set are car ried through a trumpet guide 20 to the first pair of drawing rolls 16", thence through rolls 16", 16 to a guide 21 which is mounted in the axis of rotation of the spindle l1 and from which the roving or am is carried through the traveler 15 81K thence to the spool 12. The trumpet guide 20 is mounted upon a. reciprocating slide .bar 22 which extends longitudinall of the frame and is common to all of t e sets of drawing rolls and is-recipmcated by suitable mechanism not shown. Except for the specific form of the thread guide 21. described hereinafter. the mechanism as thus far set forth is that which is common to most spinning machinery, and therefore need not be further set forth. A supporting bar 23 performs its usual service of supporting the bearings of the drawing rolls.

In the forms of the invention shown the severing means are gravity actuated and in the nature of clamps which grip the rovings. when released, for the purpose of holding them against the draft of the drawing mils until they break, though, in the broader aspect of the invention, other forms of severing device may be employed. In the specific form of the invention illustrated the severing means are mounted uzpon brackets 24 which are clamped at suitable intervals to the aforesaid supporting rod 23, there being one of said brackets for each )air of spinning units arranged between the latter and carrying a pair of indcpendently acting severing devices Each bracket is secuied in position by a clamp screw 25. The severing device or gripping uicans shown comprises a pair of combs 26, 27 secured to a back or connecting niembcr 28, and the latter is formed or provided with a lug or extension 529 by which it pivoted to the bracket. The bracket is formed with a pair of upwardly extending ears 30 which rcceive the pivot pin 31. which extcnds through the lugs 2.) upon the severing devices. In order that the lugs may be received upon the same pin 31 they arc somewhat offset with respect t ear-h other, as best shown in Fig. l. The combs 26, 27 on each of the severing dcvices are so spaced from each other that when the device falls said combs depend upon opposite sides of the supporting bar 23. As the slits 2 between the adjacent teeth are flawed but taper to a width which is adapted to grip the rovings, when the deviw falls the rovings are forced up into the slits, this action being assisted by the bar 23 which supports the rovings against downward movement.

The latch or trigger 33 by which the severing device is normally maintained in its raised position is pivoted at 34 and provided at one end with the guide eye 23., above mentioned, and at the other with a finger 35 which enga es the severing device. The body of the latch is formed of resilient wire for a reason which will appear and provision is made for accurate adjustment in order that the eye 21 may be properly placed with reference to the spindle and the nger 35 with referenceto the severing device. For this purpose the wire body 33 passes through a barrel 36.with reference to which it may be adjusted by means of the set screw 37, and said barrel is pivoted between lugs 38 on a laterally adjustable support 39 (see Figs. 5 and 6). The support 39 is mounted in a bracket 40 secured to the board I", said bracket being provided with a groove or slot 41 to receive the support 39 and a screw 42 f r clamping the support in adjusted position in the slot. By the con struction just described I provide for both lateral and longitudinal adjustment of the latch body with respect to the bracket 40, the spinning mechanism, and severing device. The forward end of the latch member is laterally bent at 43 to form a pivot upon. which the guide carrying end 44 is mounted. The guide eye 21 is of the usual pigtail variety and the wire from which it is formed extends rearwardly as at 45 into a sleeve 47 in which it is longitudinally adjusted by means of a set screw 48. The other end of the sleeve receives a wire 46 which passes to a bearing block 50 having at its rear end a wire 49 laterally bent at 51 to engage beneath the wire 33. The pivot block 50 is perforated to receive the laterally bent end 43 of wire 33 and a nut 52 prevents the pivot block slipping ofi the end of the wire 43. Obviously the guide carrying end of the latch may be tilted with respect to the body thereof for the purpose of dofiing the spindle, but while said end is Free to turn upwardly upon the pivot 43, its downward movement is limited by the stop 5]. engaging the body of the wire 33. The sleeve 47 permits a limited but delicate'adjustment of the guide eye longitudinally of the latch.

The rear end of the latch is bent upwardly, as best shown in Fig. 1,at 53, and in its normal position is closely adjacent to or in contact with the bar 23. At, the upper end of the upright portionll53 the wire is bent rearwardly as at 54 and then laterally at 55, (see Fig. 2) and upon the said lateral projection the finger 35 is adjustably mounted by means of a collar 56 and screw 57. The collar permits of lateral and angular adjustment of the finger 35, so as to bring the latter to the correct position to engage the flange 58 upon the gravity actuated severing device. A counterweight 59 is adjustable upon the latch so as to very slightly overbalance the latter on the rearward side, the adjustment being such that with the severing device removed from contact with the finger 35 and the yarn broken so as to exert no pressure upon the guide eye the latch will tilt, but with the severing device bearing upon the finger 35, even when the yarn or roving is broken, the latch will maintain its operative position unless it be jarred as by the vibration of the machine or be given a slight impulse away from the. severing dcvice. In the construction shown in Figs. 1 to 6 inclusive I do not depend upon the vibration of the machine to release the latch when the roving is broken but give it a positive impulse by means of a cam (illcurricd by the reciprocating trumpet guide bar 22. Be cause of the form and length of the cam 60 and the resilience of the wire of which the latch or trigger is composed, when the parts are in the normal position shown in Fig. 1, the cam wipes past the latch giving it a very sli ht impulse which is not however suli icien to overcome the pressure of the roving against the eye 21 and the friction of the finger 35 against the severing device. 'llen, lmwevcr, the roving breaks so that it no longer presents a resistance to the tilting of the latch the friction of finger 35 against the severing device not being sufficient of itself to resist the impulse given by the cam to the latch, the latter tilts to remove the finger 35 from supporting position and the severing device drops into engagement with the rovings and grips the latter. The continued rotation of the draft rollers almost immediately breaks the rovings between the combs by which it is held and the first pair of rollers. The further rotation of. the draft rollers merely discharges the end of the roving thus there is no considerable amount of fiber or roving which can wind upon the rolls or engage the neighboring rovings and thereby cause trouble. \\hen the operator perceives that the roving has broken all that is necessary for him to do is to reset the severing device, feed the component roving's through the draft rolls and splice the end of the combined roving so formed to the end of the roving or yarn upon the spool.

When the spool of any spinning unit is full it must be'dofi'ed by raising it verticirlly and for this purpose, as heretofore" state the forward end of its respective guide must be tilted out of the way and this may be readily done by reason of the pivoted construction of the tilting end 44 as heretofore described. in order that the entire latch or trigger may not be disturbed osrillatable shaft (31, parallel to and adjarent the supporting bar 23 and on the op posite side of the upright portions Tail of the latebes. and said shaft is provided opposite or in register with ttltll lateh with a cam 43;! which normally is in the position shown in Fig. l in which it is out of eontaet with its respeetive lateh. but when it is desired to dotl' the maehine the shaft may be rotated into a position in which the rains engage their respertive latehes and hold the same against movement during the manipulation of the pivoted tilting ends thereof. \Vbile the pivoted ends rarrying the guide eves might be individually tilted and the spindles eorrespondingly dotl'ed. it is the common praetire to doll all of the spindles of a frame at the same time and with this in view I have provided means for raising the guide eye carrying ends of the latrhes simultaneously. For this purpose an angle bar (53 extends throughout the frame beneath the wires of the guide eyes and is supported at suitable intervals on arms 6-1- whieh ave pivoted to brackets (35 on the frame by means of trunnions 66 mounted on said brackets. In order to raise all of the guides together therefore it is neeessary merely to swing the angle, bar 63 upwardly about the pivots 66. After the spools have been replaeed the bar (53 is swung to the normal position shown and the triggers released by oscillating the shaft 61.

The eonstruetions shown in Figs. 7 and H are substantially like that above deseribed except for the means for giving the respeet'ive latches or triggers the initial impulse by whieh, on the breakage of the roving or yarn they release the severing derive. In the form of the invention shown in Fig. T the frame 70, whieh is ordinarily found in maehines, of this eharaeter supporting the 'SCHVQIlgQI' null T1 and pivoted as at 72 is provided along its re: r bar T3 with bosses 74 which are arranger to engage the latehes and exert a slight intermittent pressure thereon, by reason of the slight oseillation given frame it) by the seavenger roller Tl bearing against draft roll l6". Exeept in respect to the specific meansby \vhieh the impulse is given to the lateh the operation of this form of the invention is identieal with that of the form heretofore deseribed and it is therefore not neeessary to deseribe the details thereof.

In the form of the invention shown in Fig. 8 the very eonsiderable vibration Wlllt'll spinning frames always have in operation is relied on to initiate the movement of any latch when the ('U!'lt5l)( ll(llllg roving or yarn breaks without other impulse and exeept in this respeet the eonstrurtion and operation is identieal with those heretofore described.

\Vhirhever form is adopted my invention provides a severing means \\'l1l('ll operates promptly upon breakage of the thread or roving and vet whi -ll is eontrolled b sin-h delirate pressure upon the thread or roving as not to substantially inerease the frietion thereon or breakage thereof. By reason of the lt3 lllt?ntt of the thread guide mounting. referred to above. a great deal of the breakage ineident to the rigidly mounted guides oi the prior art is prevented. Furthermore with my improved c-onstltlttion of thread guide the neeessalw slack in the thread for dolling may be had without the usual series of starting and stopping operations which frequently result in breakageof the roving by reason of the sudden 'erks given to the latter. As my thread guides are eonstrueted the mere lilting thereof in the manner deseribed provides the neressary Slat-k for dotting.

I claim:

1. In a machine of the elass described and in combination with the bobbin support, drawing rolls and spinning mechanism thereof. means pivoted adjacent to the drawing rolls for severing the roving a latch engaging said severing means above the rolls for maintaining said means out of eontaet with the roving. and a guide on said lateh intermediate the rolls and spinning mei-hanism for direeting thread to the latter :2. In a spinning frame and in combination with the bobbin supports, drawing rolls and spinning meehanism proper thereof. roving severing means mounted on said frame adiaeent the rolls. a pivotal latch normally engaging said severin means above the rolls and maintaining it out of eontnt'l; with the roving, a thread guide mounted on said lateh and loeated above thespiuning meehanisni, said guide reeeiving the thread directly from the rolls and guiding it dirertlv to the spinning meebanism.

it. In a spinning frame and in eombiine tion with the feeding means and spinning meehanism thereof, a severing mechanism for the rovings pivotally mounted on the frame and adapted to swing downward to sever the roviugs. a lateh provided with a guide for the thread intermediate the feeding means and the spinning meehanism, said lateh pivoted to the frame and adapted to hold the severing meehanisni in raised position when the thread is unbroken, the lateh and severing means being so constructed and arranged that the pressure of the latter on the former is sutlieient alone to maintain eooperative relation when the maehine is at rest but is insullirient therefor under the vibration of the niaehine when in operation.

4. In a marhi'ne of the elass deseribed and in rombination with the feeding means pivoted and spinning merhanisin thereof. means adjaeent to the feeding means and moving veitirally' into contact with the roving for severing the latter. a latch for maintaming said means out of contact with the rovings. a guide on said latch intermediate the feedin means and spinning mechanism for directing the thread to the latter. and means for giving the latch a slight impulse in a direction to withdraw it from the severing means.

5. In a machine of the class descrihed and in combination with the tccdin; means and spinning mechanism thereof. means adjacent the feeding means for severing the rovings. a latch for maintaining said means out of contact with the rovings. said latch adapted to bear upon the thread intermediate he feeding: means and spinning mechanism. and means for intermittently givin said latch an impulse in a direction to release the seven ing means.

6. In a machine of the class dcscrihcd and in combination with the feeding means and spinning mechanism thereof. means adjacent to the feeding means for severing the rov ings, a pivoted latch engaging the wit-ring means for niaintainiiu it normally out of contact with tho roviiigs. the engagement of the latch with the severing mcans living such that with the machine at rest the parts are maintained in normal position lo. so -h engagement. but when the machine is operated the vihration thereof causes the latch to leave the severing means when said latch is otherwise unsupported. and said latch ciagaging tlic thread intermediate the fccding means and spinning mechanism and held thereby in operative position.

7. In a spinning frame and in coinhiniition with the drawing rolls and spinning mechanism thereof, a roving severing lilltlllH pivoted on the frame on an axis transverse to that of the rolls. and above the bite of the latter and adapted to descend by gravity into contact with the roving. a pivoted latch nor mally engaging the severing means at a point above the rolls and maintaining it in raised position, and a thread guide on the latch intermediate the drawing rolls and the spinning mechanism.

8. In a spinning frame and in comhination with the feeding means and spinning mechanism thereof, roving severing means" comprising a stationary bit! and a pair of parallel combs adapted to descend into contact with the roving on opposite sides of the stationary bar, and a latch pivoted to the frame and normally engaging the severing means and holding it in raised position. said latch having a thread uide engaging a thread intermediate the ceding mechanism and the spinning mechanism.

9. In a spinning frame and in combination with the drawing rolls and spinning mechani'sm thereof, a support bar adiacent the rolls, roving severing means comprising. a pair of combs pivoted to said bar trans vcrscly thereof and adapted to descend upon opposite sides of the ar when ltlt'tlht l. a pivoted latch engaging; said severing Hlttllh and normal!)' maintaining it out of contact with th roving. and a thread guide on said latch engaging the thread intermediate the drawiu; rolls and the spinnin; mechanism.

to. In a -spinningframe and in combination with the feeding and spinning niccha nisins thereof. a gjllltlt' for ea h spinning unit. a separate support for each guide projecting forwardly l'ioiu the frame and to the cod ot' \\l!l(ll said guide is pivoted. and means for raising the guide.

ll In a spinning, frame and in coinhina ti n with the feeding and spinning nic lmnisnis thereof. a guide for each pinnin;, unit. a resilient \virc support for aid guide cxtendin forwardly of the frame. thc {guide iicing pivoted to th support. and mcans t raising the guide.

{72. in a spinning; frame and in ttillllililtlti ii pith tlic fee-din; means and spinn ng ri t'i'iit'tiiihlil llici'cpf. a roving severing means adjacent the feeding mechanism. a pivot d latch. at linger adjustable relatively to tll i latch and engaging; the St'Ytillt; means to maintain it in raised position. and :1 thread guide on said latch intermediate the feeding ili%i.ill\ and spinning mechanism.

i i in :i vspinning frame and in Hilllllllilh tion with the drawing rolls and spinning ili 't'liiliiiwii thereof. roving severing; moans adjaccul tbc dra\vin|; rolls. a pivoted latch iilii'iiiilll t' engaging said severing means and hoidin; it our of contact with the roving. a thread guide pivoted to said latch and adapted to receive thc thread dircctl} from the drawing rolls and to guide it dircctl} to the spinning mechanism. and mcans t'or raisitigf said thread guide.

1+. in a spinain frame and in comhinzc tion with the drawing rolls and spinning mechanism tbcrcoi'. roving severing means adjacent the drawing, rolls. a pivoted latch adapted to engage thc severingllltilllfi and normally maintain it out of engagement with the roving. a thread guide pivoted on said latch and engaging the thread intermediate the drawing rolls and the spinning n'n-chanisni. and means pivoted to the frame and adapted to engage the thread guide and raise it ut. of operative position.

15. la a spinning frame and in coinhinin tion with the drawing rolls and spinning; mechanism thereof. a latch pivoted on the frame and adapted to engage the severing means and maintain it out of engagement with the roving. a thread guide pivoted on said latch and engaging the thread intermw diate the drawing rolls and the spinning mechanism, means for raising said thread guide out of operative position, and means for clamping said latch against movement when the thread guide is raised.

fit)

16. In a spinning frame and in combination with the drawing rolls and spinning mechanism thereof. roving severing means adjacent each set of rolls, a pivoted latch adapted to hold each roving severing means out of engagement with the rovings. a. thread guide pivotally mounted upon each latch. means common to all the guides for raising the same into inoperative position. and means common to all the latches for locking them in position when the thread guides are raised.

IT. in a spinning frame and in combination with the drawing rolls and spinning mechanism thereof. a roving severing means for each set of drawing rolls. a support bar on which all of said severing means are piroted. a latch for each severing means pivoted on the frame and adapted to normally hold its respective severing means out of engagement with the roving. a thread guide pivotall mounted on each latch. means common.

to all the thread guides for raising them into inoperative position. and clamping means common to all the latches for locking them against the supporting bar.

18. In a spinning frame and in combination with the bobbin supports. drawing rolls and spinning mechanism thereof, a roving severing means for each set of drawing rolls comprising a roving engaging means pivoted to fall-in a substantially vertical plane into contact with the roving. a latch pivoted on an axis substantially parallel to the axes of the rolls and beneath the latter and normally supporting the roving engagin means in raised position, and a thread guide on throne] of the latch and receiving the roving intermediate the rolls and the spinning mechanism.

19. In. a machine of the class described and in combination with drawing rolls and spinning mechanism, means located adjacent the drawing rolls for severing the roving, a latch cooperating with said severing means and controlling the actuation thereof to engage the roving, and a guide mounted on the latch located intermediate the rolls and spinning mechanism for directing thread to the latter and adapted to co operate with said latch.

20. In combination with feeding and spinning mechanism and the like. a stop means for the roving. a latch associated therewith. and a combined thread guide and control device for said stop means, said guide being mounted on said latch and located between the feeding and spinning mechanism.

21. in a spinning frame and in combination with the bobbin supports, drawing rolls and spinning mechanism. a roving severing means for each set of drawing rolls comprising a roving engaging means pivoted to move in a substantially vertical plane into contact with the roving. a latch pivoted on an axis substantially parallel to the axes of the rolls and beneath the latter, and a thread guide on the end of the latch and receivingthc roving intermediate the rolls and the spinning mechanism.

JOHN P. miner.

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