US3310933A - Method and apparatus for making a decorative yarn with slubs therein - Google Patents

Description

arch 28, 1967 D, JOY 3,310,933

METHOD AND APPARATUS FOR MAKING A DECORATIVE YARN WITH SLUBS THEREIN Filed June 18, 1965 5 Sheets-Sheet 1 ATTORNEYS March 28, 1967 JOY METHOD AND APPARATUS FOR MAKING A DECORATIVE YARN WITH SLUBS THEREIN 3 Sheets-Sheet 2 Filed June 18, 1965 I NVEN TOR ,WQVMd/MFJJZ BY ATTORNEY March 28, 1967 R D- JOY 3,310,933

METHOD AND APPARATUS FOR MAKING A DECORATIVE YARN WITH SLUBS THEREIN INVENTOK FQyMa/VFJJr ATTORNEYS United States Patent G 3,310,933 METHOD AND APPARATUS FOR MAK- ING A DECORATIVE YARN WITH SLUBS THEREIN Raymond D. Joy, Ciarksville, Va, assignor to Burlington Industries, Inc., Greensboro, N.C., a corporation of Delaware Filed June 18, 1965, Ser. No. 465,137 20 Claims. (Cl. 57-36) The present invention relates to a method and apparatus for making a decorative yarn and, more particularly,'to a method and apparatus for making a yarn with slubs discriminately inserted between single or multi strand yarns prior to the drafting and/ or spinning of the yarns.

Throughout the specification the word end is used to define an individual strand of sliver, roving or yarn. While the invention is primarily applicable to the insertion of slubs between two or more rovings prior to the spinning of the rovings into a single or multi strand yarn, it will also be appreciated by those skilled in the art that the present invention is quite capable of use in the insertion of slubs between individual strands of sliver prior to being spun into ro'ving or yarn or between individual yarns prior to the individual yarns being spun into a multi ply yarn. The slub, as referred to in the specification, is a short length of sliver, roving, or yarn cut from an end.

Hereto'fore, slub yarns have been made by opening a sliver or roving into a web like form and then inlaying slubs across the width of the web and along the length of the web and then drafting the sliver or ro'ving back into a strand. The sliver or roving is then further processed into strands of yarn and the strands may then be made up into a multi ply yarn wherein at least one of the strands has the slubs inlaid therein. Other processes have been used for making slub yarn wherein short pieces of filamentary material are dropped upon a carrier strand as it is cranked and twisted with the result that the short lengths of filamentary material are wound tightly about the carrier strand at spaced sections along the length of the strand. Oftentimes in these prior processes, the final strand or the final yarn, regardless of whether it is a single strand yarn or a multi ply yarn, is weakened before and after the slub. Further, such prior processes require complicated apparatus for accomplishing the slub effect in the final yarn produced, the apparatus oftentimes requiring the drafting or spinning frame to be substantially modified.

An important object of the present invention is to provide a method of and an apparatus for making a decorative slub yarn from a plurality of ends, the slubs being accurately and firmly positioned between the ends prior to the ends being twisted or spun into either a decorative yarn of single ply or of multi ply.

Another object of the present invention is to provide an improved method and apparatus in which at least two continuously fed ends of the same fibers or of different fibers have slubs inserted and accurately positioned therebetween, the slubs being of the same or different fibers as well as colors whereby a wide range of decorative yarn can be produced.

Still another object of the present invention is to provide a method and apparatus for making a slub yarn in which the yarn is not weakened before or after the slub and further in which the slub itself does not affect the twist or spinning of the strand.

A further object of the present invention is to provide an improved slubbing apparatus capable of use with or being applied to conventional frames of the type for drafting and/ or spinning yarn without materially changing the frame.

3,31%,933 Patented Mar. 28, 1967 Yet still another object of the present invention is to provide a slubbing apparatus in which the size and length of the slub may be adjusted and accurately controlled, and in which the spacing between slu'bs may be adjusted and accurately controlled.

These and other objects of the present invention will become more apparent from the following specification, claims, and from the drawings in which:

FIGURE 1 is a diagrammatic side view of the apparatus of the present invention utilized with a typical draft zone of a frame for drafting or spinning yarn;

FIGURE 2 is a fragmentary vertical sectional view partly in elevation of the slub forming and positioning apparatus, the view illustrating cut slubs being pneumatically conveyed to and positioned between at least two ends, the view further illustrating the feeding of an end into position for cutting a slub therefrom;

FIGURE 3 is a sectional view taken substantially on the line 3-3 orf FIGURE 2, the View eliminating the trumpet guide and the end supply packages for the purpose of clarity;

FIGURE 4 is a still further enlarged fragmentary vertical sectional view through the slub forming apparatus, the view illustrating the apparatus holding the end and cutting a slub therefrom and further illustrating the actuation of the end feeding mechanism for drawing a predetermined length of end from its supply package;

FIGURE 5 is a fragmentary perspective view of a piece of yarn made according to the present invention from two or more continuous ends of sliver and roving with slub twisted therein; and

FIGURE 6 is a fragmentary perspective view similar to FIGURE 5 but illustrating a multi ply yarn made from two continuous individual ends of yarn spun with a slub positioned therebetween.

Referring now to the drawings wherein like character and reference numerals represent like or similar parts, there is disclosed a slubbing apparatus of the present invention generally designated by the numeral 10, the slubbing apparatus being disclosed in association with a conventional type of frame diagrammatically shown at 12. The frame 12, which may be a roving frame or a spinning frame, includes a drafting zone 14 having rear draft rolls 16, front draft rolls 18, and an intermediate draft apron 20. The frame 12, if the same is a spinning frame rather than just a roving frame, is provided with a pigtail guide 22 for receiving the drawn and twisted strand delivered therefrom, the pigtail guide 22 directing the strand through a traveller 24 rotating about a traversing ring 26 as the strand is being wound on the package P.

In the method or process of the present invention an end B fed from a package 28 (FIGURE 2) is received in the slubbing apparatus 10 wherein slubs are cut therefrom. The slubs S cut from the end E are conveyed to a zone or area between converging ends E and E respectively, the ends E and E being then immediately and directly fed into the drafting zone 14 with the slub S pinched or caught between the same. In more detail, the process involves the cutting of the slubs S from end B and maintaining control over the slubs S from the time of cutting until the same are accurately positioned between the continuous moving ends E and E when the latter are travelling in side by side contiguous relationship. Positive control is then maintained over the ends E and E with the slubs S caught therebetween until the same pass into the rear draft rolls 16 of frame 12.

For the purposes of describing this invention, the ends E and E are individual strands of sliver, roving or yarn in any combination. The fibers of the particular ends E and E may be natural fibers or synthetic fibers in any desired combination or blend and in addition the ends may be monofilaments or multifilaments. By the selection of any desired combination of fibers in any proportions or by selection of sliver, roving or yarns, many different types of slub yarns may be made. Additionally, by suitable adjustment of the slubbing apparatus as will be described in more detail later in the specification, the size of the slub and the relative position of the slubs with respect to one another in the final yarn may be accurately controlled to produce difierent effects on the decorative yarns. The end E which is used for cutting the slubs S therefrom may be a strand of sliver, roving or yarn. Preferably, it is roving or yarn and, of course, it may be of ditferent fibers or even different colors than ends E and E Referring now to FIGURE 1, the slubbing device 10 includes a cutter assembly or means 30 for receiving the end E from the supply package 28, a feed mechanism 32 for pulling a desired length of end E from the supply package 28, a slub dispensing tube 34 connected to and receiving slubs from cutter means 30, and a trumpet guide 36 positioned adjacent to the outlet of and receiving slubs from the tube 34. Control means generally designated at 38 control in synchronism the actuation of the cutter means 30, feed mechanism 32 and the conveying of the slub S through the slub dispensing tube 34.

The ends E and E are continuously fed from supply packages 40 and =12, respectively, which are diagrammatically shown in FIGURE 2. Ends E and E converge toward one another and pass over a yarn guide bar 44 suitably positioned in front of the mouth of the trumpet guide 36. Trumpet guide 36 has a flared inlet portion 46 which tapers downwardly into an elongated generally cylindrical reduced outlet portion 48. The end of the outlet portion 48 of trumpet guide 36 is positioned immediately adjacent the back draft rolls 16 of drafting zone 14 at the nip of the same as shown in FIGURE 1. As will now be understood, from a reference to FIG- URES l, 2, and 3, the slubs S cut from the end E are conveyed through an enclosed path defined by the slub dispensing tube 34 to the nip or area between the converging ends E and E at the flared inlet 46 of the trumpet guide 36. Since the length of the slub S is traveling in the same general direction as the ends E and E when the same are in the trumpet guide 36, the slubs S will be accurately positioned in a plane between the ends E and E and because the ends E and E are traveling in a confined space and thus are generally contiguous with one another, the slubs are actually pinched or caught between the ends E and E as the ends come into contiguous relationship with each other and are positively held thereby until the ends enter the nip of the back draft rolls 16 where a twist is initiated on the ends E and E to further anchor the slubs S therebetween. The resulting strand of ends E and E depending on the character of the frame 12 tightly hold the slubs S depending upon the amount of twist given thereto.

Referring now specifically to FIGURES 2 and 4, the cutter assembly or means 30 includes a nozzle member 50 having a passageway 52 therethrough. The passageway 52 below its inlet 54 is provided with an air jet orifice 56 arranged to receive air from an air line 60. In more detail, the nozzle member 50 is provided in the upper portion thereof with an enlarged chamber 62 arranged to threadedly receive a member 64 having a portion of the passage 52 therein, the member 64 having a reduced lower end portion 66 which defines air jet orifice 56 and a manifold or air chamber for air received through the air line 60 communicating therewith.

The lower portion of the nozzle member 50 is provided with a transverse bore 68 therethrough, the bore 68 extending transversely across the passageway 52. An air cylinder 70 is supported in one end of bore 68, the air cylinder 70 having a spring return piston therein, the piston (not shown) having a piston rod 72 which in turn is connected to a clamp member 74 slidable in the bore.

Clamp member 74, as best shown in FIGURE 2, is provided with an open-ended slot 76 for receiving a knife 78 which is fixedly supported in a stationary position in the lower portion of the nozzle member 50. The knife 78 extends transversely across the bore 68 with its blade edge positioned closely adjacent the edge of the passageway 52 through the nozzle member 50. Set screws 79, or other suitable means, detachably support the knife 78 in its stationary position in the nozzle member 50.

A movable anvil member 80 slidable in the bore 68 is provided with a cut-out or slot 82 for receiving the knife 78 when the anvil member is in the position shown in IGURE 2. The clamp member 74, when the piston of air cylinder is extended is arranged to pinch or clamp the end E on opposite sides of the knife '78 to the anvil 89. Further extension of the piston of the air cylinder 70 causes the clamp member 74 and anvil to move as a unit to the right of FIGURE 2 to a position shown in FIGURE 4, so that the end E is moved laterally across the blade of the knife 78 to cut the slub S.

The end E is pulled off of the supply package 28 in predetermined lengths by means of the feed mechanism 32 which includes a lever pivoted to a lug 92 supported by the nozzle member 50. An end portion 94 of the lever 90 rides on a bar or pin 96 provided in the forked outer end 98 of the anvil 80. The opposite end portion 100 of lever 90 has pivoted thereto an arm 102 provided with a roller 104 on its free end. A spring 10-8 having one end bottomed in a bore provided in the nozzle member 50 and its other end engaging the portion 100 of lever 90 normally urges the lever 90 in a clockwise direction as shown in FIGURES 2 and 4. It will now be evident by referring to FIGURES 2 and 4 that when the piston of the air cylinder 70 is extended for the purpose of causing a slug S to be cut from the end E, the clamp member 74 engages the anvil 80 on either side of the blade of knife 78 and cuts the slub S therefrom as the clamp member 74 moves further to the right as viewed in FIGURES 2 and 4, it will cause the anvil 80 to move to the right, thus pivoting the lever 90 in a counterclockwise direction causing the roller 104 to move from the position shown in FIGURE 2 to the position shown in FIGURE 4 where it has engaged the end E and drawn a predetermined amount of this end from the supply package 28. Also, it will be understood that the spring 108 exerts a sutficient pressure against the arm 90 which causes anvil 80 cooperating with the clamp member 74 to tightly clamp end B during the cutting action and during the end feeding action. By providing a plurality of holes 110 spaced longitudinally along the lever 90, the pivot point of the arm 102 with respect to the lever 90 can be varied and, thus, the travel of roller 104 may be varied to viry the length of end B removed from the package 8.

A plate 112 suitably secured to the bottom of the nozzle member 50 and having a hole therethrough for alignment with passageway 52 is arranged to support the upper end of the closed curved slub dispensing tube 34. It will be noted by reference to FIGURE 2 that the slub dispensing tube 34 is provided at its free end with a slub dispensing hole 114 positioned within the flared inlet 46 of the trumpet guide 36. The opening 114 also is centrally positioned with respect to the converging ends E and E respectively at substantially the same area or nip where the ends E and. E converge. The slub dispensing tube 34 has a plurality of air dispensing orifices 116 positioned adjacent to but slightly upstream of the slub dispensing hole or opening 114. The purpose of orifices 116 is to dissipate a major portion of the air flowing through the slub dispensing tube 34 and used to convey the slub S so that the same is not discharged into the trumpet guide 36 where it might interfere with the feeding of and the clamping action of the ends E and E on the slubs S delivered therebetween.

Mounted immediately above the nozzle member 50 on a suitable vertically extending bracket 118 is a disc tension device 120 through which the end E is fed from the package 28 supported on a creel (not shown) to the nozzle member 50. Suitable pigtail guides 122 and 124 may be provided above and below the disc tension device 120. Disc tension device 120 is provided with the usual spring means 124 which applies adjustable forces to a disc 126 acting on a surface 127 of bracket 118 depending upon the particular end E fed therethrough. The purpose of the tensioning device 120 is to cooperate with the feed mechanism 32 so that desired control may be maintained of the end E during the time it is being pulled intermittently from the package 28 by feed mechanism 32 and fed into the nozzle member 50.

Referring now specifically to FIGURE 1, the control means 38 for synchronizing actuation of the cutter means and the blast of conveying air through the jet orifice 56 is disclosed. In more detail, the control means comprises an electrical timer 130 including a motor 132 rotating a timer wheel 134 having lugs 136 selectively spaced thereon. The lugs 136 are arranged to intermittently close a normally open microswitch 138. The microswitch 138 when opened and closed selectively operates a solenoid 140 which in turn actuates a four-way air valve 142 which may be of the spool type or the like. The air valve 142 has a line 144 connected thereto from a suitable source of compressed air 146. Additionally, the air valve has an outlet 148 to atmosphere. The other lines are connected to the air valve 142, namely, the previously mentioned air line 60 and a second air line 150 which in turn is connected at its other end to the air cylinder 70.

When the frame 12 is started and ends E and E are continuously supplied thereto from their respective supply packages 40 and 42 mounted on a suitable creel (not shown), the motor 132 is also started. The motor 132 will continuously rotate the timer wheel 134 causing it to periodically open and close the microswitch 138. When the microswitch 138 is closed, the solenoid 140 is energized and moves the air valve 142 to a position where air under pressure from the source of supply 146 is transferred through the air valve 14-2 directly to the air line 60 into the chamber in nozzle member where it is discharged through the jet orifices 56 in a downward direction as viewed in FIGURE 2. When the air valve 142 has moved to the aforementioned described position, the line 150 of the air cylinder 70 is placed in communication with the outlet 148 to atmosphere so that a spring in the air cylinder returns the piston to a position where the clamp member 74 is retracted as shown in FIGURE 2v 'Ihe anvil 80 is simultaneously returned to the position shown in FIGURE 2 as the spring 108 will move the lever 90 clockwise.

When the clamp member 76 and the anvil 80 are in the position shown in FIGURE 2, the slub S just previously cut will be blown downwardly through the slub dispensing tube 34 and discharged between the ends E and E Also, the end B which has slack in the same between the disc tension device 120 and the inlet 54 to the passageway 52 is blown downwardly through the passageway to a position where the next slub S can be cut therefrom.

After the above operation, the timer 130 then owns the microswitch 138 de-energizing the solenoid 140 so that the air valve 142 moves to a second position wherein the air line 60 is open to atmosphere through the outlet 148 and the air line 150 to the air cylinder is placed in communication with the source of compresed air 146, This causes the air cylinder 70 to be actuated so that its piston moves to the left of FIGURE 4 thus moving with it the clamp member 74 which cooperates with the anvil 80 to cause the end E to have the slub S cut therefrom 6 as shown in FIGURE 4. Simultaneously with this 'action, the movement of the anvil towards the right of FIGURE'4 causes the lever to be pivoted counterclockwise about its pivot 92 against the action of spring 108. This movement of lever 90 causes the arm 102 with its roller 104 to pull a predetermined length of end B through the disc tensioning device from the supply package 23. The operations previously described are alternately repeated during the process of making the slub yarn of the present invention.

If it is desired to increase or decrease the distance between slubs S in the final slub yarn wound on the package P, it is merely necessary to adjust the timer so that the interval of time between the opening and closing of microswitch 138 is changed. This may be accomplished by replacing the timer wheel 134 with another wheel having a different number or arrangement of lugs thereon. It will now be obvious to those skilled in the art that the programming may be varied considerably to give different effects and appearance to the slub yarn. On the other hand, if the length of the individual slubs is desired to be changed, the pivot point of the arm 102 on the lever 90 can be readily adjusted to any of the longitudinally spaced adjustment holes 110. This adjustment will vary the travel of roller 104 against the end W.

Referring now to FIGURE 5, there is disclosed in perspective a fragmentary portion of yarn made when using rovings for the ends E and E It will be noted that the yarn in FIGURE 5 is substantially a single ply yarn as the rovings E and E when passing through the drafting zone 14 are twisted into a substantially integrated yarn strand with the slub S tightly twisted therein. Because there has been no reduction of fibers before or after the slub S, the yarn strand has substantially the same strength as if it had been made without the insertion of the short lengths of slub Si Referring now to FIGURE 6, there is disclosed a multi ply yarn in which the ends E and E were strands of yarn rather than strands of roving when they were fed into the frame "12. In this modification the multi ply yarn resulting still looks the slub S between the yarn ends E and E although the yarn ends E and B are not particularly integrated with each other but yet have a tight twist with one another.

The method and apparatus heretofore described and illustrated in the drawings fully and effectively accomplishes the advantages of the present invention. 'It will be realized, however, that the foregoing specific embodiments have been shown and described only for the purpose of illustrating the principles of this invention and are subject to some changes without departing from such principles.

Therefore, the terminology used in the specification is for the purpose of description and not limitation, the spirit and scope of the invention being defined in the claims.

What is claimed is:

1. The method of making a decorative yarn having short individual lengths of slubs therein comprising the steps of: feeding at least one end'to a cutting zone and cutting the same into predetermined lengths of slub; feeding at least two continuous ends in a converging path toward and into a confined space where the continuous ends travel parallel to each other and in a generally contiguous relationship; feeding the slubs to the confined space at predetermined intervals and positioning the same between the continuous ends with the length of the slubs lying in a plane generally parallel to the direction of travel of the continuous ends in the confined space; and then spinning the yarn with the slubs.

2. The method as claimed in claim 1 in which the slubs are fed by an air current to the nip between the converging continuous ends with the air current being dissipated adjacent the nip area.

3. The method as claimed in claim 1 in which the feeding of the at least one end to the cutting zone is accomplished intermittently whereas the feeding of the at least two continuous ends to the confined space and the yarn spinning operation is continuous.

4. The method as claimed in claim 3 in which the feeding of the slubs from the cutting zone to the confined space is accomplished by intermittent air currents.

5. The method of making a decorative yarn having short individual lengths of slubs therein comprising the steps of: feeding at least one end to a cutting zone and cutting slubs from the same of predetermined lengths; feeding at least two continuous ends in a converging path toward and into a confined space where the continuous ends are traveling parallel to each other and in a generally contiguous relationship; feeding the slubs to the confined space at predetermined intervals and positioning the same between the continuous ends with the length of each of the slubs lying in a plane generally parallel to the direction of travel of the continuous ends in the confined space; directly and immediately feeding the continuous ends with the slubs therebetween from the confined space to the nip of the back rolls of a drafting zone and then through the drafting zone to the nip of front rows where the continuous ends are drafted and at least slightly twisted with the slubs being caught and twisted therebetween.

6. The method as claimed in claim 5 including the step of further twisting the continuous ends and the slubs therebetween after the same leaves the front rolls.

7. The method as claimed in claim 5 in which the slubs are fed in a confined path by an air current to the nip between the converging continuous ends, the air current being dissipated immediately adjacent the nip area of the converging continuous ends.

8. The method as claimed in claim 5 in which the feeding of the at least one end to the cutting zone is occomplished intermittently in step by step increments synchronized with the cutting of the slubs whereas the feeding of the at least two continuous ends to the confined space and the drafting of the at least two continuous ends is continuous.

9. The method as claimed in claim 8 in which the feeding of the slubs from the cutting zone to the confined space is accomplished by intermittent air currents synchronized with the cutting of the slubs from the at least one end.

10. In a slubbing apparatus for use with a frame having back rolls for spinning yarn, the improvement comprising: a trumpet guide having a flared inlet converging into a reduced outlet portion terminating adjacent the nip of said back rolls of the frame, said trumpet guide being arranged to receive at least two continuous ends converging toward each other and to direct the continuous ends in side by side generally contiguous relationship to the nip of the back rolls; and a slub dispensing tube having an inlet arranged to receive slubs and air for conveying the slubs therethrough and a slub discharge outlet positioned adjacent the flared inlet of said trumpet guide and between the converging continuous ends whereby slubs delivered from the slub discharge outlet of said tube are positioned between the continuous ends converging in the trumpet guide, the slubs being positioned with their length in a plane generally parallel tothe direction of travel of and between the continuous ends passing through the trumpet guide.

11. The slubbing apparatus as claimed in claim 10 in which said slub dispensing tube is provided with a plurality of air dissipating orifices adjacent to but upstream of its slub discharge outlet whereby air is discharged externally of the tube forward of the trumpet guide.

12. In a slubbing apparatus for use with a frame having back rolls for spinning yarn, the combination comprising: a nozzle member having a passageway therethrough for receiving an end; means for supplying the end to the passageway; cutter means on said nozzle member cooperating with the passageway therein for cutting slubs of predetermined length from the end fed therethrough; a trumpet guide having a flared inlet converging into a reduced outlet portion terminating adjacent the nip of said back rolls of the frame, said trumpet guide being arranged to receive at least two continuous ends converging toward each other and to direct the continuous ends in side by side generally contiguous relationship to the nip of said back rolls; and an enclosed slub dispensing tube having an inlet arranged to receive slubs from the passageway in said nozzle member and a slub discharge outlet positioned adjacent the inlet of said trumpet guide and between the converging continuous ends whereby slubs delivered through said tube from said nozzle member are positioned between the continuous ends with their length in a plane generally parallel to the direction of' travel of and between the continuous ends passing through the trumpet guide.

13. The slubbing apparatus as claimed in claim 12 including means for supplying air through said slub dispensing tube to convey the slubs therethrough and air dissipating orifices in said slub dispensing tube adjacent its slub discharge outlet for dissipating air from the tube externally of the trumpet guide.

14. The slubbing apparatus as claimed in claim 12 in which said cutter means includes a stationary knife carried by said nozzle member, a movable anvil having a slot therein for straddling said knife, a clamp member movable transversely across said passageway for clamping the end therein to said anvil on opposite sides of said knife and for moving the end across said knife to cut the same.

15. The slubbing apparatus as claimed in claim 14 in which said feed means for feeding the end from a source of supply to the passageway of said nozzle member includes a lever pivoted to said nozzle member and having one end spring urged into engagement with and movement by said anvil, an arm pivotally connected to the other end of said lever and having a roller at its free end for engaging the end entering said nozzle member and pulling the same from the source of supply while the end is held by said anvil and said clamp member.

16. In a slubbing apparatus for use with a frame having back rolls for spinning yarn, the combination comprising: a nozzle member having a passageway therethrough for receiving an end from a source of supply; means operatively connected to said passageway for supplying air thereto to move the end therethrough; cutter means on said nozzle member including a stationary knife having its cutting edge positioned adjacent the end in said passageway, a movable anvil straddling said stationary knife, and a clamp member movable transversely across said passageway for clamping the end therein to said anvil on opposite sides of said knife and for moving the end across said knife to cut the same; means for moving said clamp,- ing member, said means including an air cylinder having a piston therein operatively connected to said clamp memher; control means for controlling the air to said cylinder and to said means for supplying air to said passageway, said control means being operable to supply air to said cylinder to actuate said clamp member when the air supply means to said passageway is vented to atmosphere and vice versa; a slub dispensing tube connected to said nozzle member at the discharge end of said passageway; a trumpet guide having a flared inlet converging into a reduced outlet portion terminating adjacent the nip of said back rolls of the frame, said trumpet guide being ar ranged to receive at least two continuous ends converging toward each other and to direct the continuous ends into side by side generally contiguous relationship as they are transferred to the nip of the back rolls, said dispensing tube having its slub discharge outlet positioned substantially centrally of the flared inlet so that the slubs discharged therefrom are positioned between the converging continuous ends in the trumpet guide.

17. The slubbing apparatus as claimed in claim 16 in which said slub dispensing tube has a plurality of air dissipating orifices positioned upstream of its slub discharge outlet whereby air received therein from the passageway of said nozzle member and carrying the slubs is substan tially dissipated from the tube upstream of the inlet of said trumpet guide.

18. The slubbing apparatus as claimed in claim 16 including means actuated by said anvil when said clamp member clamps the end in said nozzle member to said anvil for pulling a predetermined amount of end from its source of supply.

19. The slubbing apparatus as claimed in claim 18 in which said last-mentioned means includes a lever pivoted to said nozzle member and having one end spring urged into engagement with and movement by said anvil, an arm pivotally connected to the other end of said lever and having a roller at its free end for engaging the end entering said nozzle member and pulling the same from the source of supply.

References titted by the Examiner UNITED STATES PATENTS 574,941 1/ 1897 Richardson 57-91 2,264,193 11/1941 White 57157 X 3,043,087 7/1962 Breen et al 57157 X 3,144,687 8/1964 Skalko et a1. 57157 X 3,153,315 10/1964 Arthur et a1 57-157 X STANLEY N. GILREATH, Primary Examiner.

D. WATKINS, Assistant Examiner.

Claims (1)

10. IN A SLUBBING APPARATUS FOR USE WITH A FRAME HAVING BACK ROLLS FOR SPINNING YARN, THE IMPROVEMENT COMPRISING: A TRUMPET GUIDE HAVING A FLARED INLET CONVERGING INTO A REDUCED OUTLET PORTION TERMINATING ADJACENT THE NIP OF SAID BACK ROLLS OF THE FRAME, SAID TRUMPET GUIDE BEING ARRANGED TO RECEIVE AT LEAST TWO CONTINUOUS ENDS CONVERGING TOWARD EACH OTHER AND TO DIRECT THE CONTINUOUS ENDS IN SIDE BY SIDE GENERALLY CONTIGUOUS RELATIONSHIP TO THE NIP OF THE BACK ROLLS; AND A SLUB DISPENSING TUBE HAVING AN INLET ARRANGED TO RECEIVE SLUBS AND AIR FOR CONVEYING THE SLUBS THERETHROUGH AND A SLUB DISCHARGE OUTLET POSITIONED ADJACENT THE FLARED INLET OF SAID TRUMPET GUIDE AND BETWEEN THE CONVERGING CONTINUOUS ENDS WHEREBY SLUBS DELIVERED FROM THE SLUB DISCHARGE OUTLET OF SAID TUBE ARE POSITIONED BETWEEN THE CONTINUOUS ENDS CONVERGING IN THE TRUMPET GUIDE, THE SLUBS BEING POSITIONED WITH THEIR LENGTH IN A PLANE GENERALLY PARALLEL TO THE DIRECTION OF TRAVEL OF AND BETWEEN THE CONTINUOUS ENDS PASSING THROUGH THE TRUMPET GUIDE.

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