US2100004A

US2100004A - Binding machine

Info

Publication number: US2100004A
Application number: US730559A
Authority: US
Inventors: Harold F Gibling
Original assignee: MANVILLE JENCKES CORP
Current assignee: MANVILLE JENCKES Corp
Priority date: 1934-06-14
Filing date: 1934-06-14
Publication date: 1937-11-23
Anticipated expiration: 1954-11-23

Description

Nbv. 23, 1937.

as 110 15c; ass 1'10 15;

H. F. G IBLING BINDING MACHINE Filed June 14, 1954 5 Sheets-Sheet 1 fiw'nfpn Mu e! Jm Nov. 23, 1937. H. F. GIBLING 2,100,004

BINDING MACHINE Filed June 14, 1954 5 Sheets-Sheet 2 .Wwss

lioenf on i g i,

H. F. GIELING BINDING MACHINE Nov. 23, 1937.

5 Sheets-Sheet 3 I/IA'I' Filed June 14, 1954 +0 em on m an Nov. 23, 1937. H. F. GIBLING BINDING MACHINE I Filed June 14, 1954 5 SheetsSheet 4 bwm 0mm 8 Gum Nov. 23, 1937. H. F. GIBLING 2,100,004

BINDING MACHINE Filed June 14, 1934 5 Sheets$heet 5 Patented Nov. 23, 1937 UNITED STATES PATENT OFFICE Manville Jenckes Corporation, Manville, a corporation of Delaware Application June 14, 1934, Serial No. 730,559

11 Claims.

The present invention relates to a machine for applying bindings to a hollow thread package or cop, and is intended primarily for use in tying binding strings around cakes of artificial silk thread which have been formed in accordance with the so-called pot spinning method of manufacture of artificial silk, allowed to age, and then wrapped preparatory to subsequent processing operations, as illustrated, for instance, in the patent to Lockhart No. 1,904,377, dated April 18, 1933, for the manufacture of artificial silk. The binding strings are passed through and around the thread package, and serve the dual purpose of holding the wrapping in place, and of supporting the walls of the package to prevent displacement or undue separation of the thread windings during subsequent handling and processing operations on the package. In order to allow for subsequent expansion or spreading of the cake wall during the processing operations, and more particularly during the preceding mechanical operation of breaking down the cake wall to loosen and expand the cake as set forth in the pending application of Lockhart, Serial No. 647,368, filed December 15, 1932, now matured into Patent No. 2,012,723, dated August 27,

1935 for a method of producing threads of arti-.

ficial silk, the length of the bindings must be carefully measured to allow for this expansion, and then to give to the wrapped package the requisite amount of support in its expanded form.

It is a principal object of the present invention to provide a machine which embodies a binding and knot tying mechanism in combination with a conveyer mechanism which is adapted to present thread packages rapidly and efficiently to the knot tying mechanism to place a series of bindings around the walls of each package.

It is more specifically an object of the invention to provide a machine for placing a plurality of bindings around a cake of artificial silk thread which will be of a suitable length and properly placed to afford an adequate support for the cake during subsequent processing operations performed thereon.

It is a further object of the invention to provide in a machine of this description a conveyer mechanism which is particularly well adapted for continuous operation to present a continuous series of thread packagesto the binding and knot *tyingmechanism with a minimum of attention from the operator to secure a continuous and efficient operation of the machine.

With these and other objects in view, as may hereinafter appear, a principal feature of the invention consists in the provision of a binding and knot tying mechanism in combination with the carrier mechanism adapted to present a series of hollow thread packages thereto for tying a number of bindings around the walls of each package, in combination with a loading conveyer for positioning the packages successively on the carrier, and a discharge conveyer for disposing of the packages at the end of the binding and knot tying operation.

Another feature of the present invention, consists in the combination with a plurality of binding and knot tying mechanisms, of carrier mechanism which is arranged to position hollow packages successively with relation to each knot tying mechanism to tie bindings around opposite walls of each package, and for varying the position of each package with relation to each successive binding and knot tying mechanism to secure a relatively large number of bindings spaced around the package wall. I

The several features of the present invention consist also in the devices, combinations and arrangement of parts hereinafter described and claimed, which together with the advantages to be obtained thereby will be readily understood by one skilled in the art from the following description taken in connection with the accompanying drawings, in which: Fig. 1 is a general view in side elevation of a machine embodying in a preferred form the several features of the invention; Fig. 2 is a plan view of the machine illustrated in Fig. 1; Fig. 3 is an enlarged deniil view of the binding and knot tying mechanisms and carrier illustrated in Fig. 1; Fig. 4 is a sectional view on an enlarged scale taken on the line 4-4 of Fig. 3, illustrating particularly the control mechanism including a turn-table for turning the cake through substantially a right angle on the carrier; Fig. 5 is a plan view of the parts shown in Fig. 3; Figs. 6, 7 and 8 are a series of more or less diagrammatic views showing the mode of operation of one of the binding and knot tying mechanisms to place a binding around one wall of the package; Fig. 9 is a detail view of the timing gears for controlling the operation of the mechanism for releasing and turning the cake; Fig. 10 is a detail view of the timing gears for controlling the rotational movements of the table on which the cake is turned; and Fig. 11 is a detail view of the cam for raising the turntable into operating position.

The machine herein disclosed as embodying in a preferred form the several features of the present invention, comprises two binding and knot tying mechanisms or hines ofwell known design in combination with a conveyer mechanism to feed packages successively to each of the binding and knot tying mechanisms to place a number of bindings in spaced relationship around the walls of each package. Each of the binding and knot tying machines referred to, comprises a looper arm which is normally held in a raised position above the path of movement of the package, and through which a thread is passed to a knot tying device located beneath the line of travel of the package. As a package is moved into operative position, a trip device operates to cause the looper arm to be moved downwardly into operative engagement with the knot tying device, so that a loop of thread is passed around the package wall, knotted, cut, and the looper arm again raised leaving thethread end engaged by the knot tying device preparatory for the next succeeding operation.

' The conveyer mechanism for presenting packages successively to the binding and knot tying mechanisms comprises a loading conveyer, an endless carrier cooperating therewith having a series of grippers which are arranged to take the packages successivelyv from the conveyer and present them in operative position to the binding and knot tying mechanism, a receiving conveyer onto which the packages are deposited by the grippers at the end of the binding and knot tying operation, and a discharge conveyer. In order to secure a relatively large number of bindings around each package, mechanism is provided for turning each package through substantially a right angle on the carrier prior to the operation of the second of the binding and knot tying mechanisms above described. This mechanism comprises a turn-table located in the path of the carrier between the two knot tying mechanisms, and a control mechanism which acts when rendered operative to actuate the cooperating grippers to place a package on the turn-table to turn the table and the package supported thereon through substantially a right angle, and thereafter to reengage the grippers. The carrier machanism is operated through a driving mechanism which isarranged to provide a dwell in the advance of the grippers and packages supported thereon at predetermined intervals for the operation of each of the binding and knot tying mechanisms and the turn-table.

Referring more specifically to the drawings, the carrier mechanism for feeding hollowpackages of thread successively into operative position in the machine, comprises two similar endless sprocket chains 28 which are supported in parallel relationship on identical sprockets 24 secured to a shaft 28 journalled in bearings 28 carried on a separate frame 88, and on identical sprockets 32 mounted on a drive shaft 84 which is supported to turn in bearings on a frame 88. Secured ,to each sprocket chain is a series of gripper units which are mounted exactly opposite each other in spaced relationship around the entire length of each sprocket chain. Each gripper unit, as best shown in Figs. 4 and 5, comprises a block 88 which is secured at its base to the chain 28 and is provided with a laterally extending bore to receive a plunger 48. A compression spring 42 coiled around a reduced portion of the plunger within the bore, and seated at one end against a shoulder 44 in the block, and at its other end against a shoulder 48 formed on the plunger tends to maintain the plunger normally in an advanced position. A collar 48-secured to the rear end of the plunger is arranged to engage with the rear side of the block to limit the advancing movement of the plunger 48 under the pressure of its spring 42. Secured to the forward end of the plunger 48 is a gripper member comprising a curved plate 58 which is arrangedfor gripping engagement with the thread package, and is provided with a hub 82 which is sleeved onto the forward end of the plunger 48 and rigidly secured thereto by means of a set screw 84. In order to accurately position each gripper unit during its travel with the corresponding sprocket chain 28, a cross shaft 88 is mounted on each block 88, and is provided at each end with rolls 88 and 88 adapted to ride respectively on

rails

82 and 84 which are mounted at each side of the sprocket chain and extend parallel thereto along the length of its travel on the upper level. Each gripper unit is further supported against outward lateral movement due to the gripper action 01120 the plunger 48 and spring 42 by means of a roll 88 which is mounted on a vertical post 88 formed on the block 38, and is adapted for engagement with a similar rail 18 which follows the, path of the corresponding sprocket chain throughout its entire length. In order to control the operation of each pair of gripper units to move them into and out of operative position, there is secured to each plunger 48 a pin 12 which extends upwardly through a slot 14 formed in the block 88, and is provided at its upper end with a cam roll 18 which is adapted for engagement with a number of control cams during the travel of the gripper unit with the carrier chains 28 as hereinafter more fully to be described.

Packages of thread are fed successively into position where they may be taken in turn by each succeeding pair of grippers by means of a loading conveyer or belt which comprises a pair of sprocket chains "adapted to ride over identical sprockets 88 secured to a shaft 82 mounted to turn in bearings on a frame 84, and over a pair of identical sprockets 88 similarly secured to a shaft 88 mounted to turn in bearings on the frame 88. The sprocket shaft 88 and sprockets 88 are mounted with relation to the ,endless carrier sprocket chains 28, so that the sprocket chains 18 of. the loading conveyer travel between and parallel to the carrier sprockets 28 for a short distance before passing downwardly around the sprocket wheels 88. Mounted on the sprocket chain 18 are a series of holders 88 spaced exactly the same distance apart as the gripper units 88, so that each succeeding pair of grippers may be rendered operative to engage with the thread package positioned on the next succeeding holder. The loading conveyer is driven in synchronism at the same rate of travel with the carrier through driving connections which comprise a sprocket chain 92 (see Fig. 3) which passes around sprockets 84 and 88 mounted respectively on the shafts 88 and 28.

The operation of the grippers is controlled to enable the grippers to engage with and take the succeeding packages from the holders 88 on the loading conveyer by means of two similar stationary cams 88 which are arranged one adjacent each of the carrier chains 28 to engage with the cam rolls [8 respectively on each series of gripper units to retract the plungers 48 and gripper members 88 against the pressure of their springs 42 as each succeeding pair of grippers reaches the end of the lower leg of its travel on the carrier, so that the grippers will be maintained in retracted position as they rise onto the upper level, and are registered with relation to the holders 90 and packages supported thereon. The continued advance of the gripper units then causes the cam rolls I6 to ride oil the high portions of the two cams 98, permitting the grippers to come into yielding gripping engagement with the package supported on the corresponding holder 90. As the advance of the carrier and the loading conveyer synchronized therewith is now continued, the holder 90 moves downwardly around the sprockets 86, leaving each successive package in engagement with the corresponding gripper. With this arrangement of parts it will readily be seen that the operator, by placing a number of packages on the conveyer, can load the machine for a relatively long period of operation without further attention, the length of this period being controlled only by the length of the loading conveyer and the available number of holders mount- ,ed thereon on which packages may be mounted.

The present machine is also provided with a receiving conveyer which is given a step-by-step movement in synchronism with but at a slightly faster rate than the gripper units to receive the packages from the grippers, and a discharge conveyer which is continuously driven and is arranged to discharge the cakes onto a discharge platform. The receiving conveyer comprises a belt I09 which is supported on two rollers II I and H3 in parallel relationship to and between the endless carrier chains 20. The rollers I II and H3 are carried on rotatable shafts H and III respectively, the shaft II5 being directly connected to turn with the drive shaft 34 by means of a sprocket chain I I9 arranged to pass over sprockets on the shafts I I5 and.

The packages deposited on the receiving conveyer I09 are then delivered onto a discharge conveyer which comprises a conveyer belt I I0 adapted to ride over idler pulleys H2 and H4 and around a driving pulley II6. A number of cross pieces I22 are secured to the outer surface of the conveyer belt I I0 to engage with and prevent the slipping of the packages as they are carried up the inclined surface between the driving pulley H6 and the idler pulley II2 as indicated in Fig. 1. The driving pulley H6 is continuously driven by means of an electric motor H8 and a driving pulley I20, as best shown in Fig. 1. As the cakes deposited on the discharge conveyer IIO reach the top of the incline adjacent the pulley II2, they are transferred to a chute I24 which is provided with two alleys I26 to receive the finished packages, and a switch I28 which serves to guide successive packages alternately to the one and then to the other alley. The switch I28 is mounted to swing freely on a pivot I30 and is provided with a fish-tail I32 which is engaged by a package and serves to swing the switch positively to its alternate position.

The operation of the grippers to deposit the finished packages on the receiving conveyer I09 is controlled by means of two similar stationary cams I42 which are arranged one adjacent each end of the carrier chains near the end of the travel of the carrier on its upper level to engage with the cam roll I6 respectively on each series of gripper units to retract the plungers 40 and gripper members 50 against the pressure of the springs 42 as each succeeding pair of grippers reaches the end of the upper leg of its travel on thecarrier to drop each successive package in turn onto the receiving conveyer. The cams I42 are shaped to maintain the grippers in their retracted position as they are carried around the to the knot tying and gripping unit I52.

sprockets 82 to the lower level to insure clearance for the grippers as they move downwardly below the level of the receiving conveyer belt I091.

The binding and knot tying mechanisms herein disclosed are commercial products which have been rebuilt and adapted for use in the present machine, and therefore will be described only so far as necessary to indicate their mode of operation in connection with the present machine. Each of these mechanisms comprises a casing I46 which is provided with a laterally extending hollow supporting arm I50 for a thread tying and gripping mechanism I52 of ordinary description which is located directly beneath and in the line of movement of the packages through the machine. As an integral part of this mechanism there is also provided a looper I54 which is secured to a supporting rod I56 carried on two lever, arms I58 and I60 which are arranged to turn about the same axis, the lever arm I58 being pivotally mounted at I62 on the machine frame, and the lever arm I60 being secured to an actuating rock shaft housed within the casing I46 and forming an integral part of the binding and knot tying machine.

Thread from which the bindings are made is drawn :from a spool designated at I64 on a support I66 mounted on the upper part of the casing I46, is threaded through an eye in the end of the looper I54, and extends downwardly across the path of the advancing package to the knot tying and gripping mechanism I52. The knot tying and gripping mechanism is tripped into operation to tie a binding around the package wall when the package has been moved into operative position by means of a trip member I68 which is secured to a rock shaft I10 mounted transversely of the machine; and is provided with a curved tip which is arranged in the path of the advancing package. The rock shaft I10 carries also a lever arm I12 which is connected by means of a link I14 to one arm of the bell-crank H6. The bellcrank I16 is in turn mounted on a rock shaft I18 which is housed within the casing I46, and operates when rocked to trip ,the knot tying and binding mechanism into operation.

The several steps in the knot tying. and binding mechanism are shown in Figs. 6, 7 and 8. As shown in Fig. 6, the thread package has been moved past the trip member I60, causing the trip member to be lifted momentarily to trip the knot tying and binding machine into operation. At

- this point it will be noted that the wall of the package about which the binding is to be tied has been brought substantially into engagement with the thread extending from the looper down Fig. 7 shows the subsequent operation of the lever arm I54 which moves downwardly into engagement with the thread tying and gripping unit I52 to carry the looper thread completely around the wall of the package. The details of the mechanisms for performing the subsequent operations of tying together and cutting off the loop and the engagement of the severed end of the thread with the gripping mechanism, have not been illustrated inasmuch as the mechanisms for performing these operations are well known in the art, and do not specifically form part of the present invention. The looper arm I54 is then returned to its original position. The subsequent advance of the package causes the trip member I66 again to be lifted by engagement with the opposite wall of the package to trip the knot tying and binding mechanism again into operation as illusing position in the machine.

trated in Fig. 8, in order to place a binding around the opposite wall of the package.

Inasmuch as it is contemplated that the present machine will be utilized to place bindings around wrapped cakes of artificial silk thread formed in accordance with the pot spinning method for subsequent processing in accordance with the method set forth in the copending application of George R. Lockhart, Serial No. 647,368, filed December 15, 1932, it is desirable to provide a loose fitting binding around the wall of the cake which will permit subsequent expansion of the cake during mechanical working and the subsequent processing, and will at the same time provide adequate support for the cake during the entire processing operation. To this end the knot tying and gripping unit I82 is positioned a predetermined distance beneath the line of travel of the package, so that a relatively loose binding is formed as clearly illustrated in Fig. 8.

In accordance with certain features of the present invention, a drive is provided for advancing the carrier chains 20 and the gripper units associated therewith, which is adapted to provide a dwell in the advance of each of the packages at predetermined intervals for the operation of the binding and knot tying machines. and also to permit each package in turn to be turned through substantially a right angle on its support, as hereinafter to be more fully described, prior to the operation of the second binding and knot tying mechanism, so that four bindings may be placed in spaced relationship around the walls of each package. The drive as shown particularly in Figs. 3 and 5, comprises a cam disk I80 which is mounted on a drive shaft I82, and is provided with a peripheral cam groove I84 adapted for engagement with a series of rolls I88 mounted at spaced intervals on one face of a wheel I88 secured to the drive shaft 84 for the carrier sprocket chains 20. The peripheral cam groove I84 is so shaped that each succeeding revolution of the drive shaft I82 and cam disk I80, will cause the cam to engage with the next succeeding 'roll I88, and rotate the wheel I88 and drive shaft 84 through a distance which will be exactly equal to the distance between adjacent rolls I88. The length of the advancing movement imparted to the endless carrier chains 20 and the packages supported thereby for each step, is equal to exactly one-half of the distance between two adjacent gripper units, so that two advancing steps are required to place each succeeding package in an identical operat- The drive shaft I82 and cam disk I80 are continuously driven from an electric motor I80 through connections which comprise a sprocket chain I82 arranged to ride over a sprocket I84 on the drive shaft I82, and over a sprocket I88 secured to a shaft I88. The shaft I88 is connected-through a reduction gear unit of ordinary description mounted in a casing 200 to the armature shaft 202 of the electric motor I88. With this arrangement of the parts it w 11 readily be seen that a step-by-step advancing movement is imparted to the carrier sprocket chains 20 with a dwell following each advancing movement while the cam disk I completes its rotation through a complete revolution.

The mechanism for turning each succeeding package through substantially a right angle on its support subsequent to the operation of the first and prior to the operation of the second binding and knot tying mechanism, comprises a turntable 2I0 which as best shown in Fig. 4, is secured to turn with a vertical shaft 2I2 which is Journalled in a bracket 2 I4 forming an integral part of the machine frame. The turn-table is controlled through mechanism which is arranged to operate during the dwell in the operation of the carrier to raise the tum-table, to rotate it through substantially a right angle, and thereafter to again lower the turn-table to the inoperative position shown in Fig. 4. As best shown in Figs. 3, 4, 5, 9, 10 and 11, the driving mechanism for operating the turn-table comprises a driving gear 2I8 secured to one end of the continuously rotating shaft I82, and arranged to mesh with a gear 2I8 secured to a stub shaft 220. The gear M8 is provided through substantially half of its periphery with a dwell (Fig. 9) surface 222 which is arranged to engage with a corresponding dwell surface 224 on the driven gear 2 I8. With this arrangement of the gears, the driven gear 2 I 8 is rotated only during the dwell in the advance of the carrier chains 20, and is maintained in stationary position during the remainder of the rotation of the gear 2I8 with the drive shaft I82 while the carrier and packages supported thereon are being advanced to the next succeeding dwell position. The drive is taken from the shaft 220 through a link 228 which is joined through universal connections to a stub shaft 228 which carries a bevel gear 280 arranged to mesh with a corresponding bevel gear 282 secured to a vertical shaft 284 mounted at one side of the machine.

- The shaft 284 is in turn connected to a laterally extending shaft 288 through the bevel gears 288 and 240. Each succeeding revolution of the laterally extending shaft 288 through the connections above described, is arranged to impart a 90 turn to the turn-table 2I0 through a gear 242 on the supporting spindle 2I2 for the turn-table, and a gear 244 meshing therewith supported on a vertical stub shaft 248 which also carries a bevel gear 248 arranged to mesh with a bevel gear 288 on the drive shaft 288. The driving gear 244 is provided with a dwell surface 252 which extends around substantially of its periphery, and is arranged to cooperate with corresponding dwell surfaces 284 formed on a driven gear 242, these parts being arranged so that for substantially three-fourths of a complete revolution of the drive shaft 288 and driving gear 244, the gear 242 and turn-table 2I0 will be maintained in a stationary position, and will be advanced through substantially 90 during the remaining movement of the driving gear 244 through a complete revolution.

There is also secured to the end of-the drive shaft 288, an eccentric cam 288 which is adapted for engagement in a groove 288 formed in a sleeve 280 rigidly secured to the turn-table spindle 2I2, so that for each revolution of the drive shaft 288, the turn-table will be raised into operating position, and then returned again to the retracted position shown in Fig. 4. A compression spring 282 coiled about the lower end of the spindle 2I2 between a collar 284 secured to the end thereof and the bracket 2, tends to maintain the spindle 2I2 and turn-table in a retracted inoperative position.

In order to make the turn-table operative to turn each successive package through substantially a right angle, it is necessary prior to the rotation of the turn-table to cause the gripper units while positioned with a package directly over the turn-table, to release the packageso that it may be turned with the turn-table, and

thereafter to again engage the package for the subsequent advancing movements into operative relationship to the second binding and knot tying mechanism. To this end a cross shaft 266 is mounted in the machine frame above the line of travel of the packages through the machine, and is provided with two face cams 268 which are arranged for engagement respectively with the cam rolls 16 of the corresponding gripper units when located in position with the package held thereby directly over the turn-table. The shaft 266 and face cams 268 are drivenin relation to the operation of the turn-table by means of meshing bevel gears 216 and 212 mounted re spectively on the cross shaft 266 and the vertical drive shaft 234.

In the operation of the machine, the mechanism for unclamping, turning and again clamping a cake is put into operation with each successive advancing step of the gripper units. However, inasmuch as two of these advancing movements are required to bring each successive cake into operating position over the turn-table with the rollers 16 in position to be engaged by the cams 266 to release a cake from the grippers 56, it will be understood that each alternate cycle of movements of the cake turning devices is a dummy operation, and may be wholly disregarded.

During the rotation of the drive shaft I82 and cam disk I80 through substantially one-half of a revolution, the carrier chains 20 and packages supported thereon are advanced through one step. At this time the gear 2| 8 is maintained in a stationary position through the engagement of its dwell surface 224 with the dwell surface 222 of the driving gear 2I6 secured to the drive shaft I82. During the subsequent half of the revolution of the drive shaft I82, the carrier is maintained in a rest position while the gear 2l8 and drive

shafts

234, 236 and 266 connected thereto are turned through a complete revolution to perform the operation of turning the package which will be assumed to have been positioned over the turn-table, through a right angle. The steps of this operation take place as follows:--First, the turn-table is moved to its raised operative position by the operation of the eccentric cam 256, and the plungers 40 and gripper members 50 are then retracted by the engagement of the high portion of the face cams 268 with the cam rolls I6 to release the package which is now supported solely by the turn-table. The turn-table is then given its 90 rotation by the engagement of the corresponding toothed portions I of the driving gear 244 and driven gear 242. As the turning movement of the turn-table is completed, the plungers 40 and grippers 50 are again permitted to advance under the pressure of their springs 42 as the cam rolls 16 again ride off the high portions of the face cams 266, and finally the turntable is again brought to its low position by the operation of the compression spring 262. It will be understood that the turn-table is raised and lowered during its operation in order to prevent chafing of the cake by rubbing on a fixed surface. Length of bindings placed around the package is controlled by adjustment lengthwise of the machine, of the position of the knot tyer;moving the knot tyer nearer the feed end lengthens the tie.

While the invention as herein disclosed has been illustrated in connection with a machine which is particularly adapted for tying bindings around four sides of a package of artificial silk threads formed in accordance with the pot spinning method of manufacture, and wrapped preparatory for subsequent processing operations of the cake, it will be understood that the machine is.

equally well adapted for placing bindings around hollow thread packages of other types, .and that the several features of invention are clearly not limited to the specific machine herein disclosed, but are capable of broader application to a machine employing the general organization described for placing bindings around other types of hollow thread packages.

The invention having been described, what is claimed is:

1. A machine for applying bindings to hollow thread packages comprising knot tying mechanism adapted for positioning and knotting a binding around the wall of the package, a carrier for feeding packages successively to said knot tying mechanism, and means for varying the angular position of each package on the carrier to position said package with relation to the knot tying mechanism to receive a plurality of bindings at spaced intervals around the wall of the package.

2. A machine for applying bindings to hollow thread packages comprising knot tying mechanism adapted for positioning and knotting a binding around one wall of the package, a carrier for feeding packages successively to said knot tying mechanism, means for locating said packages in predetermined positions on said carrier, means for imparting a step-by-step feed to said carrier to locate each of said packages in a plurality of successive predetermined positions, and means for varying the angular position of each package on the carrier to position said package with relation to the knot tying mechanism to receive a plurality of bindings at spaced intervals around the periphery of the package.

3. A machine for applying bindings to hollow thread packages comprising a knot tying mechanism including means rendered operative upon the positioning of the package in operative position for positioning and knotting a binding around the wall of the package, a carrier for feeding packages successively to said knot tying mechanism, means for locating said packages in predetermined positions on said carrier, comprising package supporting devices at spaced intervals on said carrier, and a conveyer cooperating therewith for accurately positioning packages successively upon said supporting devices and means for advancing said carrier arranged to provide a dwell in the advance thereof at predetermined intervals to position each package with relation to the knot tying mechanism to receive a plurality of bindings at spaced intervals around the wall of=the package.

4. A machine for applying bindings to hollow thread packages comprising a plurality of knot tying mechanisms each including means rendered operative upon the positioning of the package in operative position to position and knot a binding around the wall of the package, a carrier for feeding packages to said knot tying mechanisms adapted for positioning successively opposite sides of each package in operative position with relation to each knot tying device in turn, and means located between said knot tying mechanisms adapted for turning the package on its axis with relation to the carrier through substantially a right angle.

5. A machine for applying bindings to hollow thread packages comprising a plurality of knot tying devices each including means rendered operative upon the positioning of the package in operative position to position and knot a binding around the wall of the package, a carrier for feeding packages to said knot tying devices in turn, means for turning each package on its axis through substantially a right angle with relation to the carrier between operations of adjacent knot tying devices, and means for advancing said carrier arranged to provide a dwell in the advance of the carrier and package supported thereon in operative position successively with relation to each of said knot tying and turning devices.

6. A machine for applying bindings to hollow thread packages comprising two knot tying devices each including means rendered operative upon the positioning of the package in operative position to position and knot a binding around the wall of the package, a carrier for feeding packages to said knot tying devices in turn, means for locating said packages in predetermined positions on said carrier, a turn-table located between said knot tying devicesfor turning each package on its axis at substantially right angles with relation to the carrier, and means for'advancing said carrier arranged to provide a dwell in the advance of the carrier and packages supported thereon to position opposite sides of each package successively for operation by each of said knot tying devices and for the operation of said tum-table.

7. A machine for applying bindings to hollow thread packages comprising knot tying mechanism including means rendered operative upon the positioning of the package in operative position for positioning and knotting a binding around the wall of the package, a carrier comprising an endless 'carrier device and pairs of grippers supported to move therewith, cam means for controlling the operation of the grippers to pick up and carry successive packages to position for binding the packages and then past the knot tying devices and thereafter to release said packages, and means for positioning said packages for engagement by the grippers.

8. A machine for applying bindings to hollow thread packages comprising knot tying mechanism including means rendered operative upon the positioning of the package in operative position for positioning and knotting a binding around the wall of the package, a carrier comprising an endless carrier device and pairs of grippers supported to move therewith, cam means -for controlling the operation of the grippers to pick up and carry successive packages to position for binding the packages and then past the knot tying devices and thereafter to release said packages, a; loading conveyer for positioning packages for engagement by successive pairs of grippers, and a discharge conveyer adapted to receive packages released by said grippers.

9. A machine for applying bindings to hollow thread packages comprising a knot tying mechanism including means rendered operative upon the positioning of the package in operative position for positioning and knotting a inding around the package wall, a carrier comprising a pair of endless chains mounted in parallel relationship, cooperating pairs of grippers supported for movement with said chains, a loading conveyer operating between said chains for positioning the packages for engagement by suc cessive pairs of grippers, means tending yieldingly toadvance each gripper member into gripages and then past the knot tying devices and thereafter to retract said gripper members to release the packages.

10. A machine for applying bindings to hollow thread packages comprising two knot tying mechanisms each including means rendered operative upon the positioning of the package in operative position for positioning and knotting a binding around one wall of the package, a tum-table located between said knot tying mechanisms, a carrier comprising an endless carrier device, a series of gripper devices mounted thereon, spring means tending normally to maintain each of said grippersdevices in gripping position, means for advancing said carrier arranged to provide a dwell in the advance of each gripper device and package supported thereby in operative position successively with relation to each of said knot tying devices and said turn-table, a loading conveyer, a discharge conveyer, cam means for controlling the operation of said gripper devices successively to, engage a package on said loading conveyer, and thereafter to deposit said package on the discharge conveyer, means for rotating said tum-table through substantially a right angle, and means cooperating therewith for controlling the operation of a gripper device cooperating therewith to permit the package to be rotated on said tum-table.

11. A machine for applying bindings to hollow thread packages comprising knot tying mechanism including means rendered operative upon the positioning of the package in operative position for positioning and knotting the binding around the wall of the package, a carrier comprising an endless carrier device and pairs of grippers supported to move therewith, a loading conveyer having loading stations spaced to position each successive package for engagement by a succeeding pair of grippers,and cam means for controlling the operation of the grippers to pick from the loading conveyer and carry successive packages to position for binding the packages and then past the knot tying devices, and thereafter to release said packages.

HAROLD F. GIBIJLNG.