US1995347A - Tying machine - Google Patents

Description

March 26, 1935. M, HARVEY TYING MACHINE Filed July 15, 1935 4 Sheets-Shqet 1 Jt/ameys March 26, 1935.

| M. HARVEY I 1,995,347

TYING MACHINE Filed July 15, 1933 4 Sheets-Sheet 2 March 26, 1935. M, HARVEY 1,995,347

TYING MACHINE Filed July 15, 1933 4 Sheets-Sheet 4 dtlomeys means upon the machine frame *indentations formed having a removable Patented Mar. 26, 1935 r OFFICE- 'lfYING MACHINE Q M. Harvey, Los Angeles, Calif. I I v I Application July 15,1933, Serial No. 680,641

' Claims. (o1.14o as) This invention relates to a tying machine, and more particularly to a portable manually operable machine for tensioning and then tying the tensioned band about boxes, bundles or other objects.

This invention will be illustrated and described in its preferred embodiment for applying fiat bands to boxes, but many of the novel features of the invention are applicable to round wire tying machines, and that with slight modifications of the gripping and tying means, the apply round wire bands.

It is an object of this invention to provide a light, portable machine which may be handily moved from one box to another, but if desired, may be mounted relatively stationary and the boxes moved to the machine. H

A further object is to provide the machine with only two grippers one of which may be movable relative to the other, or tensioningfthe, band about the box.

means operable serrated surface ofthe first gripper from the therebyin the band before swinging the gripper to its open position and to thereby provide a gripper which may be easily actuated and which will not unduly mar the portion of the band gripped thereby.

A further object is to provide means for latching the placed band in tying position in the machine, and means operable upon the completion of the tie for actuating the latch into its open position from which position the latch may be either manually or automatically released.

A further object is to hingedly mount the tying for movement to and from the tying position, and for utilizing this motion for actuating the band cutter and crimper, latch release and the means for actuatingthe first gripper to its open position.

A further object is to provide a band cutter relatively thin blade arranged to receive the first lap of the band between the underside thereof and machine base, and to be bracedthereby during the severing of the surplus portion of the last lap of the band extending over the upper surface thereof.

A further object is to provide means for operatively retaining the relatively thin stationary cutter blade or tongue in shearing relation with the movable cutter blade.

A further object is to arrange'the thin sta tionary cutter blade so that it may be reversed end for end and side for side, whereby as one it is to be understood that machine may be adapted to invention is chosen principally for the purpose the jcrimped end cutting edge becomes dulled, the blade maybe turned to present one of the other four edges, andin that way advantageously utilizing the entire blade.

A further object is to provide acrimping means 5 cooperating with the movable cutter blade for crimping the cut end of the bandinto the initial lap thereof. i

A further object is to provide a simple and effective means for actuating the tying means, and also for maintaining the tying means located centrally over the 'tie during the tying operation.

Other objects and advantages of the invention will become apparent as the nature of the same is more fully understood from the following description and accompanying drawings wherein is set forth what is now considered to be a preferred embodiment. It should be understood, however, that this particular embodiment of the of exemplification, and that variations therefrom in details of construction or arrangement of the parts may accordingly be effected, and yet remain within the spirit and scope of the invention as the same is set forthin the appended claims. j In the drawings: Figure- 1 illustrates a perspective tying machine of this invention.

Figure 2 illustrates on enlarged scale, a'fragmental sectional view of the tying means when actuated to the tying position.

Figure 3 illustrates a sectional view-taken between the tying means and supporting hinge therefor, and having themajor portion of the hinge broken away so as'to more fully show the latching means and actuating mechanism therefor.

Figure 4 illustrates an enlarged tional view of the first-gripper.

Figure 5 illustrates a perspective first gripper band gripping member. Figure 6 illustrates a sectional view taken substantially in the plane of line 6-6 of Fig. 4.

Figure 7 illustrates a sectional view of the invention taken between the band cutter and tying means and looking in the direction of the cutter.-

Figure 8 illustrates partially in section a view of the band tensioning means. j

Figure 9 illustrates a fra'gmental sectional view taken substantially inthe plane of line'99 of Fig; 8, and v Figure 1i) illustrates in perspective, .a view of of the finished tie.

view of the fragmental secview of the j The preferred organizationof the features of be selected and the initial this invention is illustrated in the drawings as disclosing a portable tying machine which may be easily and readily moved from one article .to be handed to another.

In Fig. 1 the machine is illustrated as being placed upon the cover of a box 12 at the location at which the band is to be tensioned and tied. The base or frame 13 of the machine may be of such size and shape as to be firmly and squarely mounted upon the box, provided with appropriate bosses and bearings for operatively supporting the band gripping, tensioning, tying and cutting means thereon.

After the machine has been positioned at the tying location, a band 14 of suitable length may end '15 thereof positioned upon the band locating horn 16, which horn may be formed integral with or suitably mounted upon the base of the machine as illustrated in Fig. 1. Next the band may be placed over the crimping anvil or die 1'1, which die may be mounted upon the frame or formed integral therewith, and positioned thereon in spaced relation from the band locating born 16, to provide a band tying zone or space 18 into which the tying means may be moved.

This first end of the band, may be conveniently referred to as the initial lap 14a of the band, and, may be next placed over the first gripper anvil 19, which anvil may be formed upon the machine frame adjacent and in alignment with the crimping die, or may be formed of a separate piece, (Fig. 6) and suitably fastened thereto.

Means may be provided for securely clamping the initial lap of the band upon anvil 1 9, which means may include a r pper dog 20 having a serrated gripping surface 21 arranged to cooperate with the anvil to securely clamp the band therebetween. The pper dog may be provided with a transverse cylindrical bore 22 of relatively large diameter, and having a portion thereof cut-away or stepped as at 23, so as to form the stop shoulders 24 and 25. The bore 22 of the gripper dog may be nicely journaled upon the spindle 26 of the gripper dog control lever or driver 2'1, which lever may be provided with a transverse bore 28 of less diameter and extending through the spindle thereof in eccentric relation thereto for pivotally mounting the said lever upon the machine frame as by means of the pivot pin 29. The lever arm 30 of the gripper driver 2'7 may be of such size and shape as to fit into the cut-away section 23 of the gripper dog, and may be provided with stop shoulders 31 and 32, arranged to cooperate with the stop shoulders 24 and 25 thereof. It may be noted from Fig. 4, that when driver 2'1 is rotated with relation to the gripped dog until the stop shoulder 31 thereof is brought into engagement with the stop shoulder 25 of the gripper dog, that the stop shoulders 32 and 24 will have been moved apart for a predetermined distance.

To facilitate the placing of the initial lap of the band within the first gripper, the gripping dog 20 may be releasably maintained in its retracted or open position by suitable gripper control means, which means trated in Figs. 4, 5, and 6, wherein it may be observed that the gripper dog driver 2'1 is provided with a finger 33 adapted to ride upon the forward end 34 of the lever arm 35, which arm at the rear end thereof, may be pivotally mounted upon the frame as at 36. A forwardly extending trigg;r 3'! may be pivotally mounted as at 38 to the lever arm 35, and may be provided with a cam portion and the base .rnay be moving the supporting is most clearly illus-- 39 adapted to ride upon the cam roller 40 operatively carried by the hinge member 41 indicated by broken lines in Fig. 6, as the hinge member lies just outside of the plane of the sectional view of Fig. 6.

The lever arm 35 may be provided with stop shoulders 42 and 43 for limiting the travel of the stop pin 44 carried by the trigger and thereby the extent of swing of the trigger.

The hinge member 41 may be journaled upon shaft 45, and may be arranged to operatively carry the tying means, and said hinge means may be acutated about shaft 45 as a center to carry the tying means to or from the tying position. During the swing of the hinge memb ;r while carrying the tying means from the tying position, the cam roller 40 also carried thereby, will be brought into engagement with the cam surface 39 of the trigger, whereby the forward end 34 of the lever arm 35 will be lifted to the position as illustrated in Figs. 4 and 6, to thereby rotate the gripper control lever 2'! in a counterclockwise direction as viewed in Fig. 4. The rotation of the gripper control lever will bring shoulder 31 thereof into engagement with shoulder 25, to rotatethe gripper dog into its open position as illustrated in Figs. 4 and 6.

Adjustable spring means may be provided for yieldingly maintaining the gripper control lever in operative engagement with the forward end 34 of the lever arm 35, which spring means may include a spring weighted plunger 46 having a semispherical head 4'! bearing in a correspondingly shaped depression formed in the gripper control lever 2'1,while the opposite end of the plunger may be slidably mounted in a suitable adjusting thimble 48, which thimble may be screw-threaded through the upper portion of a suitable frame bracket, as at 49. The thimble may be counterbored as at 50 to receive one end of a suitable spring 51, which spring may surround the plunger and act between the inner end of the counterbored section of the thimble and the head of the plunger to yieldingly urge the gripper control lever 47 to rotate in a clockwise direction as viewed in Fig. 4.

After the initial lap 14a of the band has been placed within the first gripper, the gripping dog thereof may be released to rotate under the influence of the spring means for securely clamping the band therein. To release the gripper, the trigger 37 may be lifted until the cam surface 39 thereof will roll of! of the cam roller 40, thus remeans for the forward end 34 of the lever arm 35, whereupon due to the action of the spring means 51, the gripper control lever will rotate in a clockwise direction.

The gripper dog will follow the rotation of the control lever until the serrated gripping portion thereof will en age the band, whereupon further rotation of the gripper dog will be stopped until the stop shoulder 32 of the control lever will have engaged the corresponding shoulder 24 of the gripper dog, whereupon the gripper may be furtheirotated into gripping engagement with the band. It may be well to note from Fig. 4, that the movement of the control lever with relation to the gripper dog will cause, due to the eccentric mounting of these parts, the gripper dog to be thrust downwardly in the direction of the gripper anvil, and thus the band may be very tightly clamped in the gripper before or at'about the same time that the trol lever will have reached the stop shoulder 24 of the gripper dog. This latter feature is of more importance during the releasing operation of the stop shoulder 32 of the con-- the arrival gripper, as it permits the serrations to be lifted substantially out of mesh with the indentations formed thereby in the band, and thus the rotation of the gripper dog may be made more easily as the serrations thereof do not have to cut through thrse indentations as would be the case were the eccentric connection not provided.

Now that the initial end 14a of the band has been securely gripped in the first gripper, theremaining portion thereof may be passed under the second or movable gripper anvil asmay be observed in Fig. 1, and then placed around the box 12 and to appear again as the final lap 14b, which final lap of the band may be successively placed over the initial end of the band, carried by the horn 16, over the stationary cutter blade 52, over the serrated gripping 21 of the first gripper, and finally over the second gripper anvil 53, and secure y gripped thereon by means of a gripper dog 54.

The second gripper anvil 53 may be carried by the reciprocating frame 55 (note Fig. 8) of the tensioning means. The frame 55 may be formed in the shape of a U and the gripper dog 54 may be operatively mounted between the two sides of the frame by means of the pivot pin 56.

The gripper dog 54 may have a gripping surface eccentric to the center of rotation thereof, and also serrated whereby the greater the pull upon the band toward the right as viewed in Figs.

1 and 8, the greater will be the gripping effect of the dog. A spring 57 may act between the gripper dog and frame to yieldingly maintain the gripping dog in gripping relation with the anvil. The gripper dog 54 may be provided with a thumb piece 58 for manually actuating the dog to its open position. However, if'desired, means may be provided which will act to automatically swing the gripper dog to its open position, which means may include a U-shaped member 59 of such size as to straddle the gripper dog and to be jourpivot pin 56. The member 59 may be provided with a forwardly projecting portion 60 having a tapered cam surface 61 positioned to 'be engaged by the band during the placing of the same in the gripper for actuating the gripper to its open position. Simultaneously with of the band at its gripping position, it'passes beyond the influence of the tapered cam surface 61, thus removing the means for supporting the gripper in its open position, whereupon the spring means 57 will be free to rotate the gripper dog 54 into its gripping engagement with the placed band.

The second gripper may be mountedfor movement with relation to the frame for tensioning the band about the box, which movable mounting means may include a link 62 operatively connected at one end thereof to one end of the gripper frame 55 by means of the pivot pin 56, and at its other end to the machine frame as by a suitable pivot pin 63, while the other end of the gripper frame may be operatively connected to one of the legs 64 of the bifurcated tensioning lever 65. The tensioning lever 65 may be pivotal.- ly mounted upon the frame as by the pivot pin 66. and would normally be positioned as illustrated in full lines in Fig. 1 during the placing of the final lap 14b of the band therein, whereupon by swinging the tensioning lever toward its broken line position as illustrated in the same figure, the band may be tightly tensioned about the box.

Means may beprovided to releasably lock the tensioning lever in its actuated position and therea by retain the tension in the band, which means may include a ratchet 67 (Fig. 8) mounted upon the machine frame, and a cooperating pawl 68 operatively carried'by the tensioning lever and a spring means 69 for yieldingly urging the pawl into engagement with the ratchet. The pawl may be provided with a handle 70 for the convenience of releasing the pawl from the ratchet when it is desired to return the tensioning lever to its full line-position as illustrated in Fig. 1 for the next tensioning operation. A torsional spring -71 maybe provided for yieldingly urging the tensioning lever to its starting position, which spring means may be mounted upon the pivot pin 66 and having one end connected to the frame while the other end thereof may engage the tensioning lever as at 72.

Means may be provided for latching the initial and final laps of the band onto the band locating horn 16, which latching means may include a latch lever 74 (Figs. 1 and 3) pivotally mounted upon the machine frame as at 75, and having an angular offset section 76 at the forward end thereof, adapted to latch over the two laps of the band placed over the locating horn 16 as is clearly illustrated in Figs. 1 and 3, while the rear thereof may be provided with a finger 77 against the under side of which the spring means 78 may act to yieldingly urge the latch lever into band latching position. Means may be provided for normally retaining the latch lever in its retracted or open position and manually operable for releasing the latch lever as soon as two laps of the band have been placed over the horn and automatically actuated during the return swing of the tying means to return the latch lever to its retracted position in substantially the same manner as the first gripper means is actuated to its open position. For these purposes a trigger 79 may be 'pivotally-mounted upon the latch lever and provided with a cam surface 80 arranged to be engaged by a cam roller 81 carried by the hinge member 82, whereby during swing of the hinge member 82 to carry the tying means to its retracted position, the cam roller 81 carried therebywill engage the trigger cam surface, and thus lift the trigger and there by the latch lever to its open position. To release the latch lever for movement into latching position' over the bands, the trigger 79 may be manually lifted to swing the trigger cam surface 80 free of the cam roller 81, whereupon due to gravity and the action .of the spring means 78, the latch lever will be moved into its latching position.

It is desirable but not necessary to manually release the latch lever as soon as the two laps of the band have been placed upon the horn as during the swing of the tying means into tying position, the cam roller 81 carried by the hinge member 82 will be carried out of engagement with the trigger cam surface, and thus the latch lever may be automatically closed before "the tying operation, and even before the tension operation should the tying means be swungto tying position prior to the tensioning of the band.

In Fig. 3 the latch lever and hinge member 82 are illustrated in full lines in their retracted positions, while in broken lines these parts are illustrated in their closed positions. Note that the cam roller 81, when in its broken line position, is well away from the broken line position of the trigger cam surface.

Thelatch lever 'may be provided with stop shoulders 83 and 84 against which the pin 85 carried by the trigger, may engage for limiting the swing thereof.

The band now having been latched and tensioned, the next operation will be the forming of a secure tie in the overlapping portions of the initial and flnal'laps of the band at the tying none 18.

The particular form of tie is not a feature of I this invention, and may be of 'anysuitable style, preferably as disclosed in my Patent No. 1,677,522 issued July 1'7, 1928.

The tying means by the hinge members ferred to, which hinge naled upon the shaft means may be swung position.

The tying means may include, as illustrated inFlgs. 1 and2,apairoftyingjaws86and87 pivotally interconnected by the pivot pin 88, and each jaw carrying one of a pair of cooperating tying dies 89 operable for forming a tie 90 in the placed band, (note Fig. 10).

Thefree end of the tying jaw 86 may be bifurcated to receive between the bifurcations thereof, the actuating or operating lever 91, while the free end of the tying jaw 87 may be bifurcated to receive between the bifurcations thereof, the actuating or operating lever 92. The operating lever 91 may be pivotally connected to the tying jaw 86 as by means of the pivot pin 93, while the operating lever 92 may be similarly connected to the tying jaw 87 by means of the pivot pin 94, and as may be most clearly observed in Pig 2, the inner ends of these actuati levers may be connected to the cros head 95 as by means of suitable pivot pins 96 and 9'1. To insure the imiform actuation of the operating levers, a sectoral gear means 98 may be formed upon the inner end of the opera lever 91 concentric with the cross head pivot pin 96 thereof, while a corresponding and meshing sectoral gear means 99 may be formed upon the inner end of the operating lever 92 concentric with the cross head pivot pin 9'1, whereby the actuation of one lever will cause an equal but opposite motion of the other lever. The free end of the operating lever 91 may be provided with a handle 100 while the operating lever 92 may be provided with a handle 101, (note Fig. 1).

It is desirable to moimt the tying means upon the hinge members 41 and 82 to permit the swingin thereof to and from the tying position, so as to move the said tying means out of the way during the band placing operation. The tying means may be pivotally mounted upon the hinge members 41 and 82 by means of the pivot pin 93, as is clearly shown in Fig. 1, and to maintain the tying jaws in correct tying alignment with the band, the crosshead 95 thereof may be provided with a crosshead pin 102, which pin may project from each side of the croshead and each end thereof nicely fit into the crosshead slots 103 formed in the hinge members.

be normally maintained illustrated in Fig. 1, during the band placing operation, and either prior to or after the tension operation may be swlmg to the tying position as illustrated in broken lines in this same figure. After the band has been sufliciently tensioned, the handles 100 and 101 may be actuated to closethe tying dies uponthebandtoformthe tiethereinsuchas illustrated in Fig. 10. The position which the diiferent'parts of the tying means will assume may be operatively carried 41 and 82, previously remembers be jour- 45, whereby the tying to and from the'tying spring means 113, which spring at' the completion of the tie forming operation, is illustrated in Fig. 2.

Upon the completion of the tie forming operation, the handles may be returned to their broken line position as illustrated in Fig. 1, and then the entire tying means swung to the open or retracted position, as illustrated in full lines therein. The

its fully retracted rearwardly motion thereof.

Itisduringtherearwardlyswingofthetying means that the cam rollers 40 and 81 carried by the hinge members engage the latch and gripper means for actuating these parts to their open or retracted positions.

Thisrearwardswingofthetyingmeansmay also be utilized for actuating the band cutting and crimping means. The band cutting and crimping means are clearly illustrated in Figs. 1 and 7, and may include the stationary cutter blade or tongue 52 anda movable cutter blade 105. The stationary cutter blade 52 may be formed of a flat strip of tool steel of relatively thin section, and may be relatively loosely mounted in the cutter groove 106 formed in the frame, and each end of the. stationary cutter blade may be provided with a locating hole 107, through which the point 108 of the screw 109 may project for correctly locating and retaining the stationary blade within the frame groove. As may be observed from Figs. 1 and 7, the stationary blade 52 is symmetrical in all respects, and therefore may be turned end for end or side for side in order to make possible the utilization of each of the four cutting edges thereof, whereby a single blade may have along life. As may be noted in '7, the forward end of the stationary cutter blade overlies the crimping anvil or die 1'7 sufliciently for the initial lap 14a of the band to be inserted therebetween, thus the relatlvely thin stationary cutter blade will be solidly braced dining the cutting operation.

As the stationary cutter blade overlies the crimping anvil or die 17 sufficiently for the initial lap 14a of the band to be inserted therebetween and because it projects outwardly from the machine base more or less in the fashion of a tongue and to more clearly distinguish-this blade from the movable cutter blade, it may be referred to hereinafter as the superposed cutter tongue.

The movable cutter blade may be pivotally molmted in the frame cutter groove 106 as by means of the pivot pin 110, and upon the forward end thereof may be formed the shearing edge 111 adapted to cooperate with the stationary blade for severing the final lap of the band adjacent the tie formed therein. In order to positively retain the forward end of the stationary blade in cutting relation with the shearing edge 111 of the movable blade, the movable blade at the forward end thereof may be provided with a depending lug 112 arranged to engage the side of the stationary blade opposed to the cutting edge thereof prior to the engagement of the shearing blade 111 with the band. The lug 112 may be so proportioned as to latch over the placed laps of the band and to thereby also act to retain the band portions in correct severing and crimping positions.

The movable cutter 105 may carry a suitable means may act to yieldingly retain the stationary cutter blade in its operative position and to permit the staing anvil.

7 atively joumaled upon the hinge shaft 45 and- F pin 110 and to thus swing tionary blade to be slightly lifted during the placing of the initial lap of the band upon the crimp- The means for actuating the movable cutter blade may include a ratchet-cam wheel 114 operhaving preferably four ratchet-cam teeth. The ratchet-cam wheel may be positioned directlyto the rear of the movable cutter blade and the movable blade may be so shaped as to opcratively engage the wheel in such relation that the cam surface 115- of the blade may ride over-the cam surface 116 of the wheel during the rotation thereof to cause the blade to rock about its pivot the shearing. edge 111 thereof across the stationary blade and thereby sever the final lap of the band placed over the stationary blade.

The ratchet-cam wheel-114 may be rotated a quarter of a turn during the swing of the tying means from its tying to its retracted position, by providing the hinge member .41 (Fig. 7)' with a pawl 11'! adapted to engage the ratchet face 118 of one of the ratchet teeth when the tying means is moved to the tying position, and thus to rotate the ratchet-cam wheel during the return swing of the tying means to its retracted shearing edge 111 of the r 105 may be made removable crimp the cut end position. v

A spring means 119 may be provided for yieldingly urging the pawl 117 into operative engagement with the ratchet-cam wheel,'and a stop pin 120 may be provided for limiting the swing of the Y pawl under the influence of said spring means.

The cam surface 115 of the movable cutter blade by providing a separate cam block '121 appropriately mounted upon the rear end of the blade as by suitable screw means 122. The cam block 121 and the ratchetcam wheel may both be made of steel and hardened, but even so, there may be some wear between these parts which may be compensated for by providing shims of suitable thickness between the cam block and movable blade. Also by this arrangement the action of the cutterblade may be nicely adjusted within relation to the crimping die. Y Y A band crimpingmeans may be providedto of the final lap 14b ,of the band into a depression formed in the initial lap thereof, whereby the cut end will be lodged below the normal surface of the band and therefore will not catch upon other boxes when piled one upon an-' To crimp the cut end of the tie, the crimping anvil 17 may be provided with a crimping groove 123 (Figs. 2 and '1) positioned directly below the and the movable cutter movement to drive the cut end of the; final lap of the band together with the adjacent portion of the initial lap thereof into the crimping groove 123, and thus crimping the band as illustrated in Fig nw, as at 124. Y

The operation of the machine may be-briefiy summarized as follows: First, the machine may be positioned upon the object to be tied, at the lo-- cation at which the band is to be placed therearound; second, the placing of the band which operation may be briefly restated as follows; the initial end thereof placed upon the band locating,

horn-16, thence between the crimping anvil 17 123 and to thus crimp the movable cutter blade,- blade given suificient tongue adapted to/be into clamping engagement with this initial lap of the band. The band may next be passed under the second or movable gripper anvil 53'about the objeet to return to the machine which lap may be first placed resting upon the locating-horn 16, whereupon by means of the latch trigger 79, the latch lever 74 may be released to latch the two thereon, whereupon the final lap 14b may be placed over the stationary cutter blade, first gripas the final lap 14!),

per and then slid into the second gripper, which will automatically open and then grip the band as previously described; third, the tensioning means which includes thesecond' gripper, may be actuated fromits retracted position as illustrated in full lines in Fig. 1, to its broken line position, to effect the tensioning of the band about the object. The pawl 68 cooperating with the ratchet 67 to retain the tensioning lever at that point to which this lever is'swung during the tensioning operation; fourth, the tying means may. be swung into its tying position and by means of the handles 100 and 101, actuated to securely tie the overlap,- pin'g portions of the placed band, thereafter'the tying means may be opened and swung back to its retracted position, whereupon the cutter pawl 117 will engage and rotate the ratchet-cam wheel 114 to actuate the movable cutter blade, first to sever the surplus portion of the final lap of the band from the tie second to force the cut end of the band into engagement with the adjacent portion ofthe initial lap of the band and together forcing these portions of the band into the crimping groove or die cut end into the depression formed in theinitial lap thereof so that thecut edge of the band will lie below the normal plane of the top surfaceof the band Fifth: during the swing of the tyingmeans from the tying to its retracted position, the cam rollers and 81 will engage their respective triggers to retract the firstgripper and latching lever, whereupon the machine may be removed for the next tie. 1

I It may be noted especially in Fig. 7, that during the swing of the tying means to its tying position,

that the movable cutterlever 105 will act as a in this figure.

From the above description it will be appreciatedthat the tying operation may be accomplished easily, quickly andefiect'ively.

Having fully described the invention, it is to'be understood that the invention is'net to be limited to the details herein set forth, but it is of the full scope of the appendedclaims.

1. In a tying machine, an anvil for supporting theinitial lap. of the braced by the initial lap of the band during the severing operation, a movable cutter blade, and means for positively maintaining the cutter tongue andblade in shearing relation while severing the surplus material from the final lapof the band.

2.,,,In a tying machine, an anvil for supporting the initial lap of the band, a superposed cutter tongue adapted to be bracedby the initial lap of the band during the'severing operation, a movable cutter blade, and a guide means carried by the movable cutter blade and engageable'with the cutter tongue to maintain the tongue and blade in shearing relation during the severing operation.

, '3. In a tying machine, an anvil for supporting over the initial lap laps of the band adjacent the end thereof, and

band, a superposed cutter the initial lap of the band, a removable superposed cutter tongue adapted to be braced during the severing operation by the initial lap of the band placed between the anvil and said cutter tongue, and a movable cutter blade adapted to cooperate with the cutter tongue ior severing the surplus material from the final lap of the band placed therebetween.

4. In a tying machine, an anvil for supporting the initial lap of the band, a cutter tongue adapted to be braced during the severing operation by the initial lap of the band placed between the anvil and tongue, a movable cutter blade pted severing the surplus to cooperate with the cutter tongue for 1 material from the iinal lap of the band placed therebetween, and said anvil having band crimping means ate with the movable the cut band end into 5. In a tying machine, ing the surplus portion arranged to coopercutter blade for crimping the initiallap thereof.

a cutter means for severband from the tie, and a crimping means arranged to cooperate with the the cut endpi the tie band. a

cutter means for crimping into the initial lap of the LEO M. HARVEY.

oi the iinal lap of the

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