US2729398A - Yarn tail disposal device for automatic bobbin winding machines - Google Patents

Description

Jan. 3. 1956 J. w. MAY 2,729,398

YARN TAIL DISPOSAL DEVICE FOR AUTOMATIC BOBBIN WINDING MACHINES 5 Sheets-Sheet 1 Filed Sept. 12 1951 5 Jomv W. MAY,

INVENTOR.

""lllll lllllllmi l- A E '1- loo ATTORNEYS,

! J n. 3. 1956 J w MAY 2,729,398

YARN TAIL DISPOAL DEVICE FOR AUTOMATIC BOBBIN WINDING MACHINES Filed Sept. 12, 1951 3 Sheets-Sheet 2 JOHN W MAY,

INVENTOR.

Zd oni-M ATTORNEYS.

Jan. 3. 1956 J w MAY 2,729,398

YARN TAIL DISPO$AL DEVICE FOR AUTOMATIC BOBBIN WINDING MACHINES Filed Sept. 12, 1951 3 Sheets-Sheet 5 JoHN W. MAY,

INVENTUR.

United States Patent YARN TAIL DISPOSAL DEVICE FOR AUTOMATIC BOBBIN WINDING MACHINES I John W. May, Wynnewood, Pa., assignor, by mesne assignments, to Deering Millikan Research Corporation, Pendleton, S. C., a corporation of Delaware Application September 12, 1951, Serial No. 246,299

9 Claims. (Cl. 242--19) This invention relates to a yarn tail dispelling or disposal device for automatic bobbin winding machines such as the Whitin-Schweiter. automatic filling-bobbinwinder and is particularly adapted to be used in associationwith an automatic tail cutter of the type shown in my co-pending application, improved Tail Cutter for Winding Machines, Serial Number l79,672, filed August 16, 1950, now Patent No. 2,677,507, of which the present application is a continuation in part.

The usual types of automatic winding machines such as the Whitin-Schweiter winder manufactured by the Whitin Machine Works, Whitinsville, Massachusetts, includes a horizontally movable chuck to which bobbins are singly directed upon a preceding bobbin having been fiiled with yarn. Yarn from a preceding bobbin is directed across the face of the chuck and is clamped between the chuck andthe head of the succeeding bobbin to be filled. As the yarnis wound on the new bobbin, a portion of the yarn extends across the head of the bobbin and is severed by conventional or other means such as the improved tail cutter disclosed in my said copending application. This severed portion of yarn is known as a yarn tail and in operation of a winding machine of this type, the yarn tails or ends, after being severed from the quills orbobbins, either adhere to the quills, become enmeshed in surrounding parts of the machine or are thrown free of the machine, thus presenting a disposal problem and requiring periodic stoppage of the machine to permit the accumulated tail ends to be removed from the machine or cleaned from around the machine. This cleaning problem increases the expense of operating and maintaining the machine'and, accord ingly, increases the cost of the finished product.

An even more serious problem occurs where the severed tails adhere to the wound quills. If these quills are loaded into the loom battery without removal of the tails, defective clothwill-be produced as a result of the tails being woven into the cloth. Generally, relatively few of the tails can be pulled out of the Woven cloth and even where this can be done the imperfection persists. Hence, it has been necessary for an operator or battery hand to scrutinize the quills and remove any tails before loading the loom battery, a tedious task and one that further increases the operating cost of the machine.

it is, therefore, the primary object of the present invention to provide a device for automatically removing the severed yarn tail ends from the machine and wound quills and directing the same into a suitable receptacle.

More specifically, it is an object of this invention to provide a nozzle, adjacentthe chuck which normally imparts rotation to a bobbin or quill onto which yarnis wound, with means automatically operable as each bobbin or quill is dotted to direct a blast of compressed air above and across the chute into which ejected or dotted bobbins are directed upon each transfer operation for directing the tail ends, which have been automatically severed from the heads of the bobbins, into a suitable r 2,729,398 Patented Jan. 3, 1956,

receptacle disposed on the opposite side of said chute from that at which the nozzle is disposed.

It is, another object of this invention to provide yarn tail disposal means of the type described having means for causing a blast of air to be emitted by the nozzle intermittently and inprecise timed relation to the transfer operation in order to insure that the blast of air from the nozzle will not interfere with the normal path of travel of the yarn from the source to the chuck to be ciamlped between the head of the empty bobbin and the c uc Some of the objects of the invention having been stated, other objects will appear as the description proceeds when taken in connection with the accompanying drawings in Which I Figure 1 is a fragmentary side elevation of an automatic winding machine showing the tail disposal device in association therewith and showing the means for supporting the receptacle, but omitting the receptacle, for purposes of clarity;

Figure 2 is an enlarged vertical sectional view with parts broken away taken substantially along the line 22 in Figure 1;

Figure 3 is a fragmentary elevation of the nozzle look: ing substantially along the line 33 in Figure 2;

Figure 4 is a fragmentary vertical sectional view through the nozzle taken substantially along the line 44 in Figure 3;

Figure 5 is an enlarged top plan viewof the automatic winding machine with the yarn tail disposal device in association therewith and being taken looking substantially along the line 5-5 in Figure 1 with parts broken away for purposes of clarity;

Figure 6 is an enlarged isometric view of'the disposal unit removed from the machine and looking at the opposite side thereof from that shown in Figure 1, and omitting the nozzle for purposes of clarity.

Referring more specifically to the drawings, the numeral 10 broadly designates the frame of an automatic bobbin or quill winder such as the Whitin-Schweiter automatic filling bobbin winder, which includes a casing 11 which is substantially rectangular in plan and in which conventional gearing and earns, not shown, are disposed for effecting operation of the various conventional parts of the machine. The frame it also includes a horizontally disposed fixed'rod 12 extending outwardly from the front of the casing 11 having a conventional stationary bobbin holder on the front or outer end thereof, which is not shown in the present drawings but is clearly shown in the patent to W. Schweiter, Number 2,262,310 of December 30, 1941. This rod 12 is often termed a traverse rod since it usually supports a conventional traverse carriage, not shown, which assists in directing yarn to bobbins or quills, only two of which are shown in the drawings indicated at B1 and B-2 in Figure 2, to permit the yarn to be wound thereon in a conventional manner.

The casing 11 supports a conventional bobbinv feed chute'15 to which bobbins or quills are directed, one at a time, by conventional means, not shown. The chute 15 has an open bottom through which the bobbins or quills are directed to a conventional substantially V-shaped elongated bobbin carrier 16 suitably connected as by an arm 16a extending fromthe same to a bobbin carrier shaft 17 oscillatably mounted in and extending forwardly from the front wall of the casing 11. The bobbin carrier shaft 17 has a crank arm 20 fixed thereon which extends downwardly and outwardly to the right as in Figure 2 and has one end of a conventional link 21 pivotally connectedto the free end thereof. The link 21 extends out-. wardly and is then bent upwardly, .being pivotally connected to one end of a swing arm 22 fixed on a stud 23 projecting" forwardly from and being oscillatably mounted in the front wall of the casing 11.

The stub shaft or stud 23 is oscillated by conventional means, not shown, disposed within the casing 11 and is so operated as to cause the crank arm 20 to move in a counterclockwise direction in Figure 2 to the left to move the bobbin B-2 carried thereby to that position in which the bobbin B-l is shown in Figure 2, adjacent a chuck 25, to permit the bobbin B-2 to be grasped by the chuck prior to having yarn wound thereon, the bobbin B1 having previously been ejected from the chuck 25, shown in engagement with the bobbin B-l in Figures 1, 2 and 5.

The chuck 25 operates in a well-known manner, in timed relation to the operation of the machine, to recede from left to right in Figure 1 upon the desired amount of yarn being wound about the bobbin B-l. As this chuck 25 partially recedes into the casing 11, the bobbin B-l falls by gravity, into a lower bobbin chute assembly broadly designated at 26. The lower bobbin chute 26 is a usual part of this type of winding machine but in order to accommodate the tail disposal receptacle of the present invention, to be later described, the usual type of chute has been modified as will be later described in detail.

The lower bobbin chute 26 is hollow in structure and as the filled bobbins fall into the chute 26, the head portions thereof extend downwardly due to the small end of the expelled bobbin engaging a curved expelled bobbin guide 30 (Figures 1 and 6) which extends upwardly and outwardly from the chute 26.

In order that the yarn extending from the'small end of the filled bobbin may be repositioned by conventional means, such as that shown in my co-pending application, Serial Number 180,021, filed October 30, 1950, it is necessary that the bobbin or quill expelled from the chuck 25 remain within the confines of the chute 26 until-the bobbin B-2 has been properly grasped by the chuck 25 which permits the yarn extending from the small end of the expelled bobbin to extend across the front face of the chuck 25 to be subsequently clamped between the head of the empty bobbin B-2 and the front face of the chuck 25 in the usual manner. Therefore, the automatic winding machine is provided with a bobbin release arm 31, normally extending in a substantially horizontal position adjacent the outer wall of the chute 26, the free or front end of which has a bobbin retaining flange 32 projecting downwardly therefrom, whereby the expelled bobbin is normally prevented from being discharged from the open lower end of the chute 26. This bobbin release arm 31 extends rearwardly and curves upwardly and is fixed on a bobbin release arm rod 33 which is oscillatably mounted in a bearing block 34 suitably secured to the front wall of the casing 11.

The bobbin release arm rod 33 is bent upwardly and has an inwardly bent portion 35 on the upper end thereof, the front face of which is urged, by the weight of the bobbin release arm 31, against the rear surface of an arm portion 36 which projects downwardly and forwardly at an angle from a conventional magazine swing arm broadly designated at 40. The magazine swing arm is of usual construction and is pivotally mounted, as at 41, on the side wall of the housing 11. The magazine swing arm also comprises an upwardly extending magazine rack stud 42 which is instrumental in controlling conventional means, not shown, for positioning the bobbins or quills, one at a time, in the upper chute 15. Since this latter means does not constitute a part of the present invention, a further description and illustration thereof is deemed unnecessary.

The magazine swing arm 40 also has an arm portion 43 integral therewith which extends in diverging relation to the arm 36 from the pivot point 41, the free end of the arm 40 being oscillated by an intermittently driven element in the form of a crank arm The free end of the arm portion 43 is provided with a cam race. 2

a cam follower 48 on the crank arm 45 moves in the race 47 to oscillate the magazine swing arm 40 upon rotation of the crank arm 45. The crank arm 45 is fixed on a conventional intermittently driven shaft 46 which is rotatably mounted in the casing 11 and is driven by conventional means, not shown, disposed within the casing 11. The driving means for the shaft 46 is controlled in timed relation with the means for directing yarn to the bobbin B-l disposed in the chuck 25, the shaft 46 rotating in a clockwise direction in Figure 1 as the chuck 25 recedes and as the bobbin is expelled from the chuck 25 it falls into the chute 26.

The bobbin release arm 31 is normally held in the open or raised position, shown in Figure 1, by the arm portion 36. Continued rotation, however, of the shaft 46 in a clockwise direction in Figure 1, causes the arm 36 to move from right to left, thus releasing the release arm rod 33 and permitting the bobbin release arm to move by gravity to a closed position, thereby holding the expelled bobbin in the chute 26 for a period of predetermined duration. After the crank arm 45 has moved to the point where the arm portion 36 commences its rearward movement, the arm portion 36 again engages the inwardly projecting portion 35 of the bobbin release arm rod 33, causing the bobbin release arm 31 to again move upwardly to an open position. Upon the bobbin release arm 31 being elevated, the bobbin in the chute 26 falls into a suitable container, not shown, disposed beneath the machine. The crank then comes to rest in substantially the position shown in Figure 1 preparatory to a subsequent operation as heretofore described.

Now, after an empty bobbin has been positioned in the chuck 25 in the manner heretofore described and the winding operation has started, a tail of yarn T extends from between the head of the bobbin and the chuck 25 across the usual rings R which surrounds the head of the bobbin. This tail of yarn is severed just prior to release of the filled bobbin from the chuck 25 by suitable means, such as that shown in said Patent No. 2,677,507, and a portion of which is shown in the accompanying drawings.

This tail cutter is broadly designated at 50 and comprises a blade supporting member 51 having a blade 52 suitably secured to the inner end thereof, which is provided with aplurality of notches in the lower edge thereof defining projections 53 (Figure 1) normally spaced adjacent the head of the bobbin B-1. The blade supporting member 51 is oscillatably mounted as at 54 on a bracket 55 secured, as by a screw 56, to the outer surface of the front wall of the casing 11. Conventional means, not shown in the present drawings, but being clearly shown in said Patent No. 2,677,507, causes this blade support member 51 to move in a clockwise direction in Figure 2 to move the projections 53 on the lower edge of the blade 52 downwardly between adjacent rings R on the head of the bobbin upon a predetermined number of turns being wound aboutthe bobbin or quill B-l.

Thus, the tail of yarn extending across the rings R will be engaged by the projections 53 on the blade 52 to be ensnared and consequently broken or severed thereby. Since the structure and manner of operation of the tail cutter 50 are clearly described in said Patent No. 2,67,507, a further description thereof is deemed unnecessary.

The parts heretofore described, with the exception of the chute 26, which will be presently described in detail, are conventional parts of an automatic winding machine and do not necessarily constitute parts of the present invention, these parts having been described merely as illustrative of a machine with which the present invention is adapted to be associated.

chute and receptacle structure The chute 26 is generally of cast construction, the casting being substantially U-shaped inplan and including a downwardly and forwardly curved front wall 60 which is an extension of the expelled bobbin guide 30 heretofore described. This bobbin guide is provided with a flanged portion 30a (Figure 6) which has a boss portion 62 integral therewith and projecting inwardly therefrom in which the shaft 17 is oscillatably mounted.

The chute 26 also includes a downwardly and forwardly curved rear wall 63, the inner edge of which is integral with an inner Wall 64, this inner wall 64 also being integral with the front wall 60. The inner wall 64 also has a boss portion 64a integral therewith and projecting inwardly therefrom in which the shaft 17 is also oscillatably mounted. Thus, the shaft 17 assists in supporting the chute 26.

It will be observed in Figure 6 that the downwardly and forwardly curved rear wall 63 has a boss' position 65 projecting rearwardly therefrom which is slidably penetrated by a screw 66 for securing the chute 26 to the front wall of the casing 11 of the frame 10. The parts of the lower chute 26, heretofore described, are conventional parts of an automatic winding machine and it is with these parts that the receptacle holder and the receptacle, con stituting parts of the present invention, are particularly adapted to be associated.

Heretofore, the outer edges of the front and rear walls 60 and 63, respectively, have had an outer wall or chute cover in the form of a plate secured thereto, the upper edge of which terminated in substantially the same horizontal plane as the upper edge of the inner wall 64. In order, however, to provide means for disposingof the yarn tail T, which loosely extends acrossthe bobbin rings R as each bobbinis expelled into the chute 26, in the manner heretofore described, I have supplemented the usual cover or outside wall of the chute 26 with an improved cover or outside wall 67, the lower portion of which is shaped to conform to the curvature of the exterior surfaces of the respective front and rear walls 60 and 63 of the chute 26. This cover 67 is suitably secured to the outer edges of the front and rear Walls 60 and 63, as by screws 70, which are threadably embedded in conventional boss portions 71 projecting exteriorlyfrom the front and rear walls 60 and 63 "and being integral therewith.

It will be observed in Figures 1 and 6 that the upper edge of the cover 67 is cutaway to providean opening therein in which a duct or tubular receptacle holding member broadly designated at 72 is disposed. Thisopening defines a lip portion 67a on the'cover 67 disposed adjacent the rear wall 63, the upper edge of which preferably terminates in a substantially lower horizontal plane than the upper edge of the rear wall 64 of the lower chute 26. The receptacle holder or duct 72 comprises a bottom wall 73, a top wall 74 and front and rear walls 75 and 76, respectively, which walls are preferably made from sheet metal, capable of. being bent in the desired shape or of being welded together as desired. It will be noted that opposed ends of the duct 72, that is, the inner and outer ends thereof with respect to the chuck 25,

, are open.

It will be observed in Figures 1 and 6 that the walls 73 to 76, inclu-sively, are flared outwardly, as'at 77, at their outer edges to provide a ridge surrounding the outer edge of the duct or receptacle holder 72 for anchoring a suitable hopper, container or receptacle 80 thereon. Since compressed air is employed in directing the tail ends, heretofore referred to, into the receptacle 80, the receptacle 8!) should be made from a perforated or foraminated material so that the compressed air may pass therethrough. In the present instance, thereceptacle 80 is shown in the form of an open-mesh cloth bag, preferablymade from textile material and having an open end whichis provided with a suitable draw string 81. Thus the open end of the bag may be positioned on the outer end of the duct or receptacle holder 72 in overlapping relation to the outturned or flared portions 77 of the'walls 73 to 75,'inelusive, after which the draw string 81 may be'pulled 6 a v tight and tied for securing the receptacle 80 to the duct or receptacle holder 72.

It will be noted that the upper and lower walls 73 and 74 and the rear wall 76 are preferably disposed in substantially right-angular relation to each other while the front wall 75 extends upwardly and outwardly from the bottom wall 73 of the duct or receptacle holder 72 at an angle conforming substantially to the slope of the adjacent expelled bobbin guide and the front wall 60 of the chute 26 to give a greater breadth to the duct or receptacle holder 72.

It will be observed in Figure 6 that the rear wall 76 of the receptacle holder 72, which is spaced substantially forward of the casing 11, has an opening 82 substantially triangular in shape extending from the inner edge thereof toward the outer edge, relative to the chuck 25, to the edge of which a substantially concavo-convex wall member or shield 82a is suitably secured. If desired, the shield 82a may be formed as an integral part of the wall 76 of the duct 72. This concave-convex shield 82a curves rearwardly and is then bent inwardly to form a bottom shield 82b, the front edge of which is suitably secured to the corresponding upper edge of the rear wall 76 defining the hotholder tom of the opening 82. This bottom shield 82b is also suitably secured to the upper edge of the portion 67a of the cover 67 or may be formed integral with the portion 67a.

It will be noted that the rearmost portion of the concave-convex shield 82a is disposed closely adjacent the front surface of the front wall of the casing 11 serving to increase the area of the duct 72 (Figures 2 and 6) and insure that the tail ends T will not be deposited on the arm 22 when they are directed towards the duct or receptacle 72 by a suitable pneumatic means in the form of a nozzle to be presently described.

It will also be observed that the upper wall 74 of the receptacle holder or duct 72 extends inwardly substantially beyond the vertical plane of the inner edge of the lower wall 73, thus to extend above the chute 26 and to insure further that the tail ends directed into the duct by the nozzle, to be later described, will not be blown over the upper wall 74 of the receptacle holder 72. his evident that the front and rear walls 75 and 76 also extend upwardly and inwardly of their front edges from the lower or bottom wall 73 to the upper wall 74 of the receptacle holder or duct 72 to further assist in directing the tail ends into the receptacle 8%).

It will be observed in Figure 2 that the open upper end of the chute 26 is disposed a substantial distance below thelchuclt 25 with the result that the filled bobbin or quill, upon being discharged or expelled from the chuck 25, falls into the chute'26 and, as heretofore stated, the small end of the bobbin or quill engages the expelled bobbin guide 30 and thus causes the head end of the bobbin or quill to fall into the chute 26 in advance of the small end thereof. In order to prevent the fall of the head end of the quill or bobbin from being interrupted by the lower wall 73 of the receptacle holder or duct 72, there is provided a pair of substantially inverted L-shaped deflector rods 85 suitably secured, as by welding, to the inner face of the outer wall 67 at its juncture with the lower wall 73 of the receptacle holder or duct 72, which extend upwardly and are then bent outwardly at a point substantially midway between the upper and lower walls 74 and 73 of the receptacle holder or duct 72. The outer ends of the deflector members 85 terminate substantially short of the outer edges of l the walls 73 to 76, inclusive, of the receptacle holder or duct 72. Thus, the head of the expelled bobbin or quill will be prevented from falling upon the lower wall 73 of the receptacle holder or duct 72 due to the deflector rods 85 which function to direct the bobbin or quill downwardly into the chute 26. 1

Nozzle and actuating means therefor Referring to Figures 2, 3 and 4, there will be observed of .an elongated horizontally disposed tubular member 91 closed at its front and rear ends by suitable closure members 92 and 93, respectively. The nozzle 90 is positioned immediately above the upper edge of the inner wall 64 of the chute 26 and in a horizontal plane substantially midway of the upper and lower walls 74 and 73 of the receptacle holder or duct 72. The nozzle 90 is supported in this position by a suitable bracket or plate 95, to the upper surface of which the tubular member 91 is suitably secured, as by Welding. This bracket or plate 95 is suitably secured, as by screws 96, to the conventional inner wall 64 of the chute 26 adjacent the upper edge thereof.

The tubular member 91 has a nozzle opening, preferably in the form of a longitudinally extending slot 94, in the side thereof facing the duct or receptacle holder 72, and is provided with an angularly disposed downwardly projecting conduit 97 intermediate the ends thereof which is connected to a pipe 100 by means of a nipple 101. Flexible tubing is preferably used for the pipe 100 but it is to be understood that any suitable conduit may be used. The pipe 100 extends outwardly or to the left in Figure 2 beneath the various operating parts of the machine, rearwardly past the left-hand wall of the casing 11, then makes a right angle and extends past the rear wall of the casing 11, being finally connected to a suitable valve housing 104 by means of a pipe elbow 105 extending from the lower end of the valve housing 104 in Figure l. The pipe 100 may be supported on the casing 11 of the frame 10 by suitable support members or clips 106 and 107, as is clearly shown in Figures 1, 2 and 5.

The valve housing 104 is suitably secured, as by screws 110, to an angle clip or bracket 111 which is suitably sccured to the rear wall of the casing 11. The valve, illustrated by the housing 104, may be of any desired structure and a detailed description of the inner structure of the valve housing 104 is deemed unnecessary. This valve may be of a type such as a Schrader Number 9264B.

The valve assembly or housing 104 has suitable passageways therein, not shown, which are normally closed by means connected to a spring loaded valve plunger 113 projecting forwardly from the valve housing 104, which plunger, upon being depressed, permits compressed air to flow from a suitable source of compressed air, not shown, through a pipe or conduit 11.4, through the valve housing 104, through the pipe elbow 105 pipe 100 and the nipple 101 (Figures 2 and 4) to the nozzle 91, to be thus emitted through the slot 94 in the tubular member 91.

The valve housing 104 has a forwardly projecting bifurcated portion 116 thereon in which the upper end of a valve control lever 117 is pivotally mounted, as at 118. This lever 117 has a roller or follower wheel 121 rotatably mounted in the lower end thereof which is so positioned as to be intermittently engaged by the outer end of the crank arm 45, heretofore described, as is clearly shown in Figure 1.

It will thus be observed that, as the chuck 25 recedes into the casing 11 in the manner heretofore described, permitting the bobbin B-l to move downwardly by gravity, the crank arm 45 moves in a clockwise direction in Figure 1 into engagement with the roller or follower wheel 121, thus moving the lever 117 in a counterclockwise direction into engagement with the plunger 113 to open the valve 104. This permits compressed air flowing from the pipe 114 to be emitted from the slot 9 in the tubular member 91 of the nozzle 90. Thus, at substantially the same time that the head of the bobbin B1 moves past the nozzle 90 into the chute 26, a blast of air is emitted through the opening or slot 94 in the nozzle 90 past the bobbin thereby blowing the tail end T previously severed at the head of this bobbin through the receptacle holder or duct 72 into the receptacle 30.

It will be noted that the nozzle 90 is positioned in a slightly higher "plane than that of the upper ends of the deflector rods 85 and will, therefore, normally cause :the'tailends topass above. theupper ends of. the deflector rods as they are thrown into the receptacle 80. Although a relatively few of the tail ends T may be ensnared by the upstanding deflector rods 85, it is evident that these particular tail ends may be removed from the deflector rods 85 when the bag or receptacle is removed from the receptacle holder or duct 72 for emptying the same.

It is evident that, upon the crank arm 45 moving out of engagement with the roller 121 in Figure 1, the valve 104 will again be closed to prevent compressed air from being emitted from the opening or slot 94 in the nozzle thus permitting normal operation of the machine. A continuous blast of air from the nozzle is undesirable since it might foul the yarn as it is positioned to extend past the outer end of the bobbin holder or chuck 25 preparatory to an empty bobbin being positioned in the chuck 25 as heretofore stated.

It is thus seen that I have provided a tail disposal device for automatic winding machines which operates in timed relation to the operation of the machine to direct a blast of air across the path of travel of a bobbin as it is being expelled from the chuck 25 and have further provided a receptacle and means for supporting the receptacle in such a position that the tail ends from the expelled bobbins will be blown into the receptacle by a blast of air across the path of travel of the ejected bobbins.

In the drawings and specification there has been set forth a preferred embodiment of the invention and although specific terms are employed, they are used in a generic and descriptive sense only and not for purposes of limtation, the scope of the invention being defined in the claims.

I claim:

1. In an automatic winding machine for winding yarn onto bobbins having winding means, means for expelling bobbins upon completion of the winding process and means for severing yarn tails from said bobbins, the combination with a pneumatic nozzle for directing a blast of compressed air across the path of travel of said expelled bobbins and a hopper positioned on said machine on the other side of the path of travel of the expelled bobbins and in alignment with said pneumatic nozzle, of means for introducing air under pressure to said nozzle and means operatively connecting said last-named means to said machine to cause a blast of air to be emitted from said pneumatic nozzle upon a bobbin being expelled to direct said yarn tails into said hopper.

2. In an automatic winding machine for winding yarn onto bobbins having winding means, means for expelling bobbins upon completion of the winding process, and means for severing yarn tails from said bobbins and being provided with a bobbin release arm for momentarily retaining expelled bobbins, said machine having means for operating said bobbin release arm to move the same into and out of operative position, yarn tail disposal means comprising a nozzle positioned adjacent the path of travel of each expelled bobbin, means for directing air under pressure to said nozzle, means operatively connecting said last-named means with the means for operating said bobbin release arm, and a hopper mounted on said machine in alignment with said nozzle, whereby actuation of said means for operating said bobbin release arm will cause air to be emitted from said nozzle across the path of travel of ,said expelled bobbin to direct said yarn tails into said hopper.

3. In an automatic winding machine for winding yarn onto bobbins having means for receiving the bobbins for winding yarn thereon, a tail cutter for cutting tails of yarn from the bobbins after the yarn has been wound thereon, and means for expelling vfilled bobbins, yarn tail disposal means comprising a nozzle positioned adjacent the'path of travel of said expelled bobbins, means automatically operable by said machine for emitting air under pressure from said nozzle, and means for entrapping yarn. tailsrdirected thereto by said air from said greases nozzle, including a receptacle holding member positioned on said machine, and a receptacle removably connected to said receptacle holding member for receiving yarn tails.

4. In an automatic winding machine for winding yarn onto bobbins having windings means and means for expelling wound bobbins therefrom and being provided with a bobbin release arm for momentarily retaining expelled bobbins in spaced relation to said winding means and also with means for severing yarn tails from said bobbins, said machine having an intermittently driven element thereon for operating said bobbin release arm, yarn tail disposal means comprising a nozzle positioned adjacent said winding means, means for introducing compressed air to said nozzle, means operatively connecting said lastnamed means to said intermittently driven element, a receptacle holding member mounted on said machine, and a receptacle removably connected to said receptacle holding member, whereby operation of said intermittently driven element will cause a blast of air to be emitted from said nozzle in timed relation to the operation of said bobbin release arm to direct yarn tails from said bobbins into said receptacle carried by the receptacle holding member.

5. In an automatic winding machine for winding yarn onto bobbins having winding means, means for expelling wound bobbins, an expelled bobbin chute and also an intermittently movable element movable upon each successive bobbin being expelled, said machine being provided with means for severing yarn tails from said bobbin, a 'yarn tail disposal device comprising a nozzle positioned adjacent said winding means, means for introducing compressed air to said nozzle, valve means in said last-named means, means operatively connecting said intermittently movable element to said valve means to cause air to be emitted from said nozzle in timed relation to the operation of said machine, a receptacle holder positioned in alignment with said nozzle, said receptacle holder having a yarn tail receiving receptacle connected thereto whereby the air emitted from said nozzle will cause said yarn tails to be directed into said yarn tail receptacle and said yarn tail receptacle comprising a duct secured to said machine, means in said duct for connecting the receptacle thereto, and said duct having guide means associated therewith for directing expelled bobbins into said expelled bobbin chute.

6. In an automatic winding machine having a chuck for successively receiving bobbins, means for winding 'yarn onto the bobbins wherein a tail of yarn is formed at the base of each bobbin, means for successively releasing the filled bobbins and a chute including a first side wall and a second side wall spaced below the chuck and between which the filled bobbins fall upon being released, said machine also having a tail cutter for cutting the corresponding tail of yarn as each bobbin is filled, the upper edge of the first side wall being disposed in a horizontal plane substantially above that of the upper edge of the second side wall and having an opening therein, an elongated horizontally disposed nozzle positioned immediately above the upper edge of the second side wall and directed towards the opening in said first wall, a duct projecting from the side of said first side Wall remote from the second side wall and communicating with said opening, the upper edge of the second side wall being disposed substantially midway of the horizontal plane of said duct projecting from the first side wall, a form inated receptacle, means securing the foraminated receptacle to the end of said duct remote from said first side wall and in communication with said duct, means connecting the nozzle with a source of compressed air and means operable in timed relation to a bobbin being released from said chuck for admitting compressed air to 10 said nozzle to cause the corresponding tail of yarn from the released bobbin to be carried across the open upper end of the chute, through the opening, the duct, and into the foraminated receptacle, successively, thereby to dispose of said tail of yarn.

7. In a structure according to claim '6, at least one deflector rod secured to the first wall and extending at least partially across said opening to prevent the bobbins released from the chuck from being thrown into said opening in their course of movement into said chute.

8. In an automatic winding machine having a chuck for successively receiving bobbins, means for winding yarn onto the bobbins wherein a tail of yarn is formed at the base of each bobbin, means for successively releasing the filled bobbins and a chute, including a first side wall and a second side wall, spaced below the chuck and between which walls the filled bobbins fall upon being released, said machine also having a tail cutter for cutting the corresponding tail of yarn as each bobbin is filled, the upper edge of the first wall being higher than the upper edge of the second side wall and having an opening therein, the upper edge of the said second wall being disposed substantially midway of said opening in the first side wall, an elongated horizontally disposed nozzle positioned immediately above the upper edge of the second side wall and directed towards the opening in said first side wall, a duct projecting from the side of said first side wall remote from the second side wall and communicating with said opening, a foraminated receptacle, means securing the foraminated receptacle to the end of said duct remote from said first side wall and in communication with said duct, a conduit connected at one end thereof to said nozzle and at its other end to a source of compressed air, a normally closed valve interposed in said conduit, means operable in timed relation to a bobbin being released from the chuck for opening said valve to permit compressed air to escape through the nozzle whereby the corresponding tail of yarn from the released bobbin is carried across the open upper end of the chute, through the opening and the duct and into the foraminated receptacle, successively, thus disposing of said tail of yarn.

9. An improvement in an automatic winding machine for winding yarn onto bobbins having means for receiving the bobbins for winding the yarn thereon, a tail cutter for cutting tails of yarn from the bobbins after the yarn has been wound thereon, and means for expelling filled bobbins so they fall from said receiving means; the improvement consisting of yarn tail disposal means comprising compressed air means removed from the yarn winding means and disposed adjacent one side of the path of travel of the expelled bobbins for momentarily emitting a blast of air across the path of travel of the bobbins, means for automatically operating said compressed air means in timed relation to the expellation of each bobbin, and hopper means mounted on said machine and positioned on the other side of the path of travel of the bobbins and in the path of the blasts of air to trap yarn tails directed thereinto by said automatically operable compressed air means.

References Cited in the file of this patent UNITED STATES PATENTS 2,035,721 Reiners et al. Mar. 31, 1936 2,245,360 Peterson June 10, 1941 2,449,328 'Schweiter Sept. 14, 1948 2,481,197 Caille Sept. 6, 1949 FOREIGN PATENTS 563,594 Germany Nov. 7,1932

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