US1201688A - Tying-machine. - Google Patents

Description

B. H. & R. N. BUNN.

TYING MACHINE.

APPLICATION FILED JAN-12.1914.

1 01,688. Patented 0%. 17,1916.

ll SHEETSSHEET 2 ATTOR NE Y.

B. H. & R. N. BUNN.

TYING MACHINE.

APPLICATION FILED 1AN.I2, 1914.

Patented Oct. 17, 1916.

I I SHEETS-SHEET 3.

llvyzlvrons, Benjamin H. l5unn. fiomcmzo NBunn.

WIT NE 5556:

WITNEJJEJ: W. CA7 W B. H. & R. N. BUNN.

TYING MACHINE.

APPLICATION HLED JAN. 12. 1914.

Patented Oct. 17, 1916.

11 SHEETS-SHEET 5.

//v VENTOHJ, Benjamin MEI/mm. Fromanz o N. Bun/'2.

- fl7TOH/VE Y.

B. H. & R. N. BUN N.

TYING MACHINE.

APPLICATION FILED IAN. 12, 1914.

a 1. Wm M ts 5 m m Dn fflm Mm M NJA m wmo w m a A 0.% P m Wm momm WITNESJES.

B. H. (I: R. N. BUNN.

TYING MACHINE.

APPLICATION FILED IAN-12,1914.

II SHEETSSHEET-7.

IN VENTOFh Benjamin Hfiunn. Fiomcmzo NBMHHI Patent-ed Oct. 17, 1916.

/ W/TNESjES ATTOR'NE y.

B. H. & R. N. BUNN.

TYING MACHINE.

APPLICATION FILED JAN. 12. 1914.

Patented Oct. 17, 1916.-

II SHEETS-SHEFI 8- lllEllll Ill an n In l1 WITNESSES: INVEN TORS,

Benjamin Hfiulm. Homanzo MEL/mm.

By MMJWFM ATTOR NE Y.

B. H. & R. N. BUNN.

TYING MACHINE.

APPLICATION FILED JAN. 12. 1914.

I I SHEETS-SHEET 9.

INVENTORJ, Ben am/n H.5urm. Homanzo Nfiunm 5y 72% 'ATTOH NE Y.

WITNESSES.

B. H. & R. N. BUNN.

TYING MACHINE.

APPLICATION FILED IAN. I2, 1914.

1i SHEETS-SHEET I0.

Fig.2 3.

wrrmtssas: 11v vz/woaa, 2/ .W Benjamin H. Bum. 4 W Homanzo Nfiurm.

- 5y @MJ. 7%

ATTOHNE Y.

Patented Oct. 17, 1916.

pact and eflicient tying machinewh'ic tie the bundlesor -packages rapidly....and"se curely. 7 Other objects and-advantages will appear more fully from the following-H61... scription and" from the machine illustrating" NIT D STATES PATENT OFFICE.

BENJAMIN H. BUNN AND ROIlYlIANZO N. BUNN, OF CHICAGO, ILLINOIS.

[DYING-MACHINE.

Specification of Letters Patent.

Patented Oct. 17, 1916.

Application filed January 12, 1914. Serial No. 811,661.

To all whom it may concern Be it known that we, BEN AMIN H. BUNN and ROMANZO N. BUNN, citizens of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improve'- ments in Tying-Machines, of which the following is a specification.

This invention relates in general to a machine or apparatus for tying up packages, bundles, parcels or the like, and is especially adapted for tying up packages of letters or other mail matter.

In tying packages or bundles of letters 1n the postal service, by hand, a relatively large amount of time is consumed and usually considerable string or cord is wasted in wrapping up and tying the packages.

Our improved machine is designed to tie such packages of lettersor mail with a minimum amount of string, to compress the'let-i ters uniformly so as to make uniform packages, and to wind the string or cord'around the letters with a uniform tension and tiethe knot close to the packageso as to take I up any slackness whereby 'firm compact packages will be or ned which will not be apt to loosen'or come apart inha'ndling.

Amongthe ebjects of the "present inven tion, are to provide'a relatively simpleiicontiour invention as shown in they accompanying drawings, in which;

Figure 1 1s a front elevation of the ma- 7 chine, parts, being omitted, broken away, or shown diagrammatically; Fig. 2 is an end view taken from the right hand side of Fig. 1, parts also being omitted or broken away for convenience in illustration. Figs. 3 and 4 are detailsshowi'ng the p'arcel or.pagflgageii clamping or compressing mechanism Figs.

5, 6, 7, 8, 9, 'are details illustrating the. clamp- J. ing or .compressingdevices, the means for turning the package, means for ejecting the packageand also certain features of the mechanism for winding the string around the package and tying the same; Fig. 10 is,

an .enlarged front view showing the knot ter, and means for operating the same; Fig. 11 is an enlarged detail showing a top view of the knotter and stripper mechanism; Fig. 12 is a side view similar to Fig- 10 showing the knotter parts in another position; Figs. 13, 14, 15 and 16 are details illustrating certain portions of-string or cord guides and holder; Figs. 17 g and 18 are details of the cord holder; Fig. 19 is an enlarged detail illustrating certain features of the cord holding and knotting mechanism and the discharge or ejector for the packages Fig. 20 1s a plan view of portions of the knotter mechanism; Figs. 21, 22, 23 24, 25, 26 and 27 are details illustrating the knotter and,

' are of assistance in understanding the mechamsm: Assuming. that the machine 15 in starting position with the cord in place, and the operator places a package thereon, the machine first compresses the package and windsthe string around the same in one direction,. then turns the package and winds the string. around the same in a direction at right angles to the first winding, then knots the string and severs the samejand finally discharges the. tied bundle. Our improved maeliine"'is provided with a substantial frame, such asindi'cated at 30 inthe drawings, this frame 'havingbearingsfor vari -QRSshafts and other operative parts. We 'ipre-fer...tooperate the'machinie by means of" fa. motor or other"'su itable' source .of. power.

not'shown. A driving pinion 31 isintended driving apparatus. This pinion meshes with matically released at the end of the tying I operation. This-action is accomplished by means of a forked clutchlever 36 which is pivoted at 37 to thframe, and is-provided at its upper end with a roller 38. This lever is moved by means of a cam block or wedge 39 acting in conjunction with a pin or lug 40 on a shaft (11, which shaft carries the main drivingcams and gears and makes one revolution during each operation of the ma chine.

This cam block arrangement will best be understood from Figs. 1 and 28.

posite end of the rod is connected to an arm 43 (Fig. 2) which is .secured at its opposite end to a rock shaft 44 mounted in bearings in the frame. This shaft is provided with a second arm 45 having its free end connected by means of a rod 46 with one end of a hand lever 47 which is pivoted adjacent to the top plate of the frame. A spring 48 is connected between the arm 45 and the frame 30 for holding the parts in normal position, in which position the cam block 39 is positioned to throw the clutch 34 out of engagement and hold it out. When the operator presses down on the upper end of the lever 47, the connected rods and arms throw the cam block 39 to the right as seen in Fig. 2. This movement causes the enlarged part of the cam block to move from between the roller 38 and the pin 40. This frees the upper end of the lever 36 and permits the spring 35 to throw the clutch into engagement. As soon as this is done the gear 32 is driven which turns a gear 49 on shaft 33, this gear being in mesh with a gear 50 on the shaft 41, and consequently turns such shaft. The pin 40 immediately starts away from its normal position and, therefore, when the operator releases the lever 47 and permits the cam block 39 to move back to normal position the roller 38 on the lever 36 is not moved over to throw the clutch out of engagement as the cam block is free to move laterally during its return movement. When the shaft 41 has completed its revolution the pin 40 strikes against the face of the cam block and forces the block laterally so as to swing the top of the lever 36 over and throw the clutch 34 out of engagement,

thereby stopping the machine.

The presser device is the portion of the machine which is first started in operation by the movement of the shaft 41. The presser makes two operations during the tying of a package, that is it first presses the package and holds it while the cord is being passed around in one direction, and while it is being turned and then again gives it a final pressure while the string is being wound in the other direction and during the tying operation. In order to do this the gear wheel 50 is provided with a cam 51, best seen in Fig. 3. This cam is of a peculiar formation in order to actuate the presser at the proper times and permit such timing as may be necessary for the operation of the other mechanisms. roller 52 on the end of an arm 53 engages with the cam 51 and moves such arm through the distance indicated in such figure. The arm 53 is secured to a shaft 54 which is provided with a short arm or tappet which is rigidly secured thereto, and is also provided with a longer arm 56 which is loosely pivoted thereon, and which is pivoted at its oppos te end to a vertically movable yoke 57. An arm 58 which is preferably formed integrally with the tappet has its outer end connected by means of a spring 59 with the outer end of the arm 56. The arm 56is provided with a pin 60 which engages with the upper face of the tappet 55. The upper ends of the arms of the yoke 57 are provided with upwardly extending rods 61 which pass through suitable bearings in the table 62 which forms the top of the main frame. It will be noted that the yoke 57 does not have an exactly vertical movement so that sufficient play must be provided in the bearings to allow for the swing of the yoke.

The upper ends of the rods 61 are connected by means of a bar 63 which carries the main compressing members. The compression members shown in the drawings are intended particularly for packages of letters. These compression members comprise two sets of clamps 64 and 65. The clamps 64 are pivoted at 66 to the bar 63 and are connected at their upper ends by a rod 67, which is pivoted at 68 to the upper end of one of the clamps, but passes freely through an eye '69 at the upper end of the other clamp and is provided at its outer end with a collar 70. A spring 71 extends between the upper ends of the clamps. By means of this arrangement the clamps may swing on their pivots 66 and their lower ends may also be spread under the tension of the spring 71, but the spring and rod 67 will tend to return them to normal position. These clamps are intended to engage the long way of the envelops and such methodof attachment provides for considerable range of movement so that they will properly compress the package. The clamp arms 65 are formed integrally and are pivoted on a vertical pivot 72. This clamp at times is in alinement with the bar 63 and at other times standsat right angles thereto. It is provided with an arm 73 having a pin 74 which is engaged by one end of a spring 75, which spring is coiled around the pivot 72 and tends to hold the clamp 65 at right angles to the bar 63. The outer or free end of the arm 73 is in constant engagement with a vertical guide 76 on a rotatable support or turntable which will presently be described, the arrangement being such that the guide 76 will hold the clamp 65 in alinement with the bar 63 when frame top 62, this device being shown in particular in Figs. 1 and 2 and 5 to 9 inclusive. The lower portion of the turn table is provided with upwardly curved or bent arms 79 and 80, which are arranged at right angles to each other and which serve to receive the package, these arms being curved upwardly so that the outer edges of the package will be closely compressed, as they co-act with .the upper clamps 64; and 65, as shown in Fig. 9. In order to hold the package for the first downward movement of the presser device, and during the turning of the turn table 77, we provide a vertically movable rod 81 which is mounted in bearings in the upwardly extending portion of the turn table 77. This rod is provided at the bottomwith a resilient button or engaging member 82 for engagement with packages. It is also provided with a lug or projection 83 which is engaged by the bar 63 when the presser device makes its first downward movement and is thereby moved downwardly until it engages firmly with the package, as clearly shown in Fig. 9. It is temporarily held in such position by means of one or the other of the pawls 84 or 85 which engage with teeth 86 at the top of the rod 81. These pawls are provided with springs for throwing them into engagement with the teeth, the double pawls being provided so that relatively coarse teeth may be used without permltting any substantial lost motion, the pawls being spaced so that one will be intermediate of a pair of teeth when the other is m posltion to engage with a tooth. It is understood that the turn-table moves through an angle of substantially 90 degrees after the rod 81 has been depressed and this rod or auxiliary pressure device holds the package firmly while it is-being turned and wh1le the main presser device is raised. This rodis also provided with a finger 87 wh ch serves to prevent the string from bendlng up the edge of a thin package.v The rod 81 is provided with a spring for hold ng it in normal raised position. Th1s spring may be arranged in any desirable manner, but for convenience, the rod is made hollow or of tubular form and a compression spring 88 is inserted therein. The upper end of this spring presses against a cap 89 in the top of the rod or tube 81 and the lower end presses against a pin or screw 90 which extends in through a slot 92 in the side of the rod or tube 81. In order to release the rod 81 upon completion of the tying operation,

the bar 63 is provided with a tappet 93 which has a beveled face 94 which engages with correspondingly beveled faces on the inner ends of the pawls 84 and 85 thereby swinging the pawls out of engagement with the teeth and permitting spring 88 to raise the rod to normal position.

The package discharge device may, for convenience, be described in connection with the turn-table. When the package is tied the string is wound around the arm- 79 as shown in Fig. 9. This arm is slotted as shown at 95 in Fig. 7 to form a guide. for the outer end of a pusher or discharge rod 96. The other end of this rod is loosely connected with an arm 97 which is pivoted at 98 to the turn-table 77. This arm' is normally held in retracted position by means of a spring 99 as shown in Fig. 19. This arm is swung to discharge the package by means of a lug 100 on a slide 101 which is mounted underneath the table 62 and which serves a further purpose as will presently be described.

The pivot or shaft 78 upon which the turn table 77 is mounted, is provided with a crank arm 102 for turning the table. The outer end of this arm is forked or slotted to receive the upper end ofa lever 103 pivotally mounted on a shaft 104, having its hearings in the main frame. The lower end of the lever 103 is provided with a projection or roller 105 which engages with a cam slot 106 in a cam wheel 107 (Fig. 30) on the shaft 41. The arrangement is such that, at the proper times, the cam will swing the lever 103 to turn the turn-table degrees, and will again'turn the table back to normal posltion. I

The cord or string 108 which is to be wound around the package is carried from any convenient source of supply through a hollow trunnion 109 which is securely mounted to turn upon the trunnion with .a lateral opening 111 through which the string or cord passes. This shaft carries a cord guide arm 112 which is bent or formed asshown in Fig. 15, and which is provided with guides 113 and ll lfor the cord. The

shaft is turned at times by means of a gear wheel 115 which meshes with some of the teeth of the gear 50. As shown in Fig. 1, portions of some of the teeth of the gear 50 are cut away so that the gear 115 will.

mounted so as to remain stationary while the shaft rotates, and means must also be provided to permit the string or cord to pass between such plate and the main table 62, we provide a support for the outer end of the plate 118 such as shown in Figs. 15 and 16. This support comprises finger 119 having a wedge-shaped end which fits loosely within a V-shaped recess 120 in an armor finger 121 extending out from the table 62. The arm or finger 121 is so shaped that it will direct the cord against the lower end of the finger 119 and the cord will then raise the latter a sufiicient distance to pass between the two members.

The end. of the cord or string 108, after passing through the guide 114 in the arm 112, is always held by means of a cord holder 122 at the beginning of a tying operation. This holder is shown in detail in Figs. 17 and 18 which show a bottom plan view and a cross section of the same. A bracket or support 123 is secured to the bottom of the table 62 and has a hole 124 therein for receiving a rod 125. The end of the rod 125 is provided with a head 126 having a beveled edge to direct the cord between the same and the end of the support 123 where it is held. The rod 125 is provided with a spring 127 for pressing the head 126 toward the end of the support. The hole 124 is enlarged at its outer end as indicated at 128 and is provided with a downward opening 129 whereby small pieces of string or cord may work therethrough and prevent any clogging or binding action. .The cord arm 112 swings around the package so as to wind the string or cord between the guide 114 and the cord holder 122 around the same. The cord holder 122 lies within the path of the cord as it is being wrapped around the package and, as the cord arm makes two revolutlons around the package it is necessary to deflect during the first. revolutionpf the .cord arm. and serves'also to push. the'portion of the .1 string whichextends between the package; and the cordlholder. (after the second winding) downwardly and inwardly in order to be engaged by the knotterbeak, as indicated in Fig. 9, it being understood that when the cord arm makes the second revolution the "cord wiil'engage with the holder. The plate 101-"(Figs 13, 14, 19) isslidably mounted in guides 131 and 132"01'1thG bOttOmL Of the 'table 62. In 'orderjZto"give i'tf the desired lateral movement tothrow over or guide the; string or cord," it is provided with. slots 133.. andl34 for receiving the guiderollers 135 I and-13.6. The slide 101' is held in retracted position by means of a spring 137 (Fig. 9) which connects between an arm 138 on the slide and a projection 139 extending downwardly from the table 62. This slide is moved forward at different times by means of a bent lever or bell-crank 140 which is pivoted at 141 to a suitable support on the main frame. The upper end of this crank engages with a projection 142 on the slide 101 and the lower end engages with a cam wheel 143 which is mounted on the shaft 41 and which has three cam projections 144, 145 and 146. When the projection 144 strikes the roller 147 on the end of the lever 140, the slide 101 is moved forward as shown in Fig. 9, so that the finger 130 presses the cord or string forward and into position to be engaged by the knotter beak. The next projection 145 causes the slide to be moved a proper distance so that said finger will throw the string to one side of the cord holder. The next projection 146 moves the slide to operate the discharge or throw off device for throwing the package off from the machine.

We have discovered that one of the most important things in connection with tying packages is to form a satisfactory knot sufficiently close to the package so as to prevent any appreciable amount of slackness in the string or cord wound around the package and to'take up the slackness of the cord as much as possible when forming the knot. The knotter mechanism is arranged adjacent to the string holder and comprises a relatively stationary jaw 147 and a movable jaw 148 which together form the beak of the knotter. One of these jaws is preferably provided with a projection 149 well back at the rear portion of the jaws for holding the loops of the knot while the slack is being taken up. The jaw 147 is rigidly secured to a shaft 150 which shaft is mountedin a head or enlarged upper end 151 of a lever 152 which lever is pivoted on a rod or shaft 153 which is supported in bearings from a main frame. The lower end of theshaft 150 is provided with a pinion 154 which meshes with a pinion ]55 on a shaft 156 extending at right angles through the head 151. The opposite 157which-meshes with a segmental gear 158 for turning theknotten The segmental gear 158 (Fig. 10) is concentric with, and driven by a shaft41, but for. convenience is connected with the cam wheel 107.

The lower endof the lever 152 is provided with a roller 159 which engages with suitable grooves inv the cam wheel 107 whereby the lever will be given a rocking movement. The head 151 stands in the position shown in Fig. 12 during the winding movement of the string and is then swung forward to the position shown in Fig. 10 when the knot is to be tied. The lever 152 is provided with a projecting hub 160 upon which is mounted a'second lever 161. The latter is provided at its lower end with a roller or projection 162 which engages with the same slot in the cam wheel 107 that is engaged bythe roller 159. The upper end of the lever 161 is forked or slotted to receive one end of a link 163 which has its opposite end connected with a slid able carriage '164 (Figs. 10, 11, 12, 20) which is mounted in the head 151. The head is provided with two holes projection 171 which is engaged by aspring,

172 on the side ofthe carriage 164 'to hold the bar 169 in normal position. This bar is provided on one side with a cam 173 which engages at times with one 'end of an arm 174 which is pivoted at 175 on the head 151.

' the knot.

The front end-of the arm .174 engages with a roller 176 on the rear end of the movable jaw 148 of the knotter and serves to close the jaws at the proper time, the jaws being opened at the proper time by means of the roller 17 6 engaging with a cam 177 on the portion of the head adjacent to the knotter. A spring 178 holds the arm 174 in position to be engaged by the roller 176, and furnishes suflicient tenslon to partially close the jaws, then as the car-' riage 164 moves forward, the cam 173 will strike the end of the lever 174 thereby completing the closing of the jaws and also holding them securely closed until the knot has been completed. The carria e 164 also carries a stripping device which or convenience will be designated as the knotter strlpper. V pivoted at 180 to the carriage 1 64 (Flg. 11) and has its forward ends so shaped as to closely engage with the knotter beak to' strip the loop ofl from the same and to take up slack in the string. The rear end of the lever 179 is bent or formed to engage w1th a cam 181 on the upper end of the head 151.

whereby it will be swung so that the forward end will engage with the knotter and be held in proper position for completing When the carriage 164 moves back to normal position, the front end of the lever 179 is swung over by engaging with the cam 177.

In order to raise the lower ply of the string or cord to proper position to be engaged by the knotter, we provide a bent finger 182 (Figs. 11, 20 and 31) which has its lower end connected by means of a lmk 184 with a pin 185 extending out from the head 151.

The operation of the machine as a whole is as follows: Assuming the parts to be in normal position, the operator places a bundle of letters or such article as is to be tied 7 begins to swing.

This comprises a lever 179 which is gaged with the cord holder, so that there pressesthe lever 47. Assuming that the motor is running and the gear 32 being turned, this causes the clutch 34 to turn the shaft33 which drivesthe pinion 49 and turns the gear 50 and shaft41. As soon as the gear 50v commences to turn, the cam 51 the lever 53 which rocks the shaft 54 an causes the yoke 57 to move downwardly until the button .82 at the bottom ofthe rod or plunger 81 engages with the package and holds it tightly in posiin position onthe arms 79 and 86 and then I tion. .At about this time the gear 50 en-,

gages with the gear 115 and starts to' swing the cord arm so that its outer end moves around thepackage. It is under-- stood that the end of the cord or string, at such time, is held by, the cord holder 122, and the string is given suitable tension through means of any desired tension device (pot shown)., As the outer end of the cord arm approaches the cord holder 122, the slide 101. is moved through its op-I erating mechanism so as to bring the finger 130 in position to deflect the cord past-the cord holder. While the cord arm continues its movement, the yoke 57 is again raised, and as it approaches the highest point, the turntable 77 is turned through an angle of substantially 90 degrees. As the'table turns, it permits the clamp '65 to swing relatively thereto so that the clamp '65 will stand at right angles to the clamps 64. This causes the package to be turned 90 degrees and,

consequently, crosses the string or cord un-' derneath the same preparatory to winding the string around the package in the other direction. During each revolution of the cord arm, the string or cord passes between the finger 119 and support 120 as heretofore explained. The cord arm continues its movement to wind the cord around the package in the opposite direction and at about the time it passes the clamp 65, the yoke again begins to descend so that, at about the time the cord isbrought into engagement withthe c'ord holder, the clamps 64 and 65 are in close engagement with the package and compressing it for the tying or knotting operation. The finger 130 isonly advanced momentarily the first time so that the cord is free to engage with the cord holder whenthe cord arm passes the second time. As soon as the cord has enare two plies extending from the package to the holder, the finger 130 again moves forward until it passes the upper ply into position to be engaged by the knotter, as shown particularly in Fig. 9. The knotter then advances and the cord lifter. 102 is swung upwardly so that the knotter beak will pass over both plies of the cord as indicated in Figs. 10 and 20. As soon as the beak is well over the two plies, the knotter is turned through the action of the se ment 158, gear 157 and the parts connecte with the knotter. Theknotter'continues to 'move toward the'string or cord and the cord-lifter also continues to rise for a short period after the knotter starts to turn. As soon as the knotter moves far enough to engage with the upper ply of the string, the finger 130 moves back to the normal position. As the knotter beak approaches the portions of the cord extending'between it and the cordholder, the 'aws open so that such portions will be received back at the projection 149.

As the knottercompletes its revolution, the

It also causes the stripper 179 to swing in againstthe knotter beak and push the loop which is then around the beak off from the end thereof while the portion is held between the jaws so as' to take up any slack and to form theknot without permitting any appreciable looseness between the knotter and the package. The end of the knotter stripper passes somewhat beyond the end of the knotter beak in order to take up all the possible slack, and to pull the loops out from the knotter jaws, thus completing the knot.

At about the time the knotter stripper engages with the knotter, the upper ply of cord between the knotter and the cord holder is severed by means of the knife 168. This leaves the end of the cord or string still in engagement with the cord holder ready for the next operation. It will also be noted that by having the stripper 167 push the other ply of cord out from the cord-holder, the cord will only be severed in one place therebypreventing cutting off short'pieces of cord as would be-done if the knife engaged both of the plies between the knotter and the holder. I

As soon as the knot has been completed the yoke and clamps 64 and 65 start upward to release the package, which, however is still held by the rod 'or plunger 81. At about'the time the package is releasedby the clamps, the turn-table begins to turn to its original position thereby swinging the package around toward itsoriginal position. At aboutthis time the cord lifter 182 starts'to return to its normal position, but is prevented from striking the cord which at such time is held downwardly by the curved outer end of the cord holder stripper 167. As the yoke clamps continue to rise, the clamp v65 swings back to its original position in alinement with the clamp 64. The rod or plunger 81 is then released and the discharge arm 96 discharges-the package by having the plate 118, the latter serving as a chute,

or guide to direct the bundle rearwardly and prevent it from falling down into the operating'parts adjacent to the edge of the table 62". It is believed this insertion, together with the statement at the latter part of page 8, will clear up any uncertainty with regard to the element 118. It will be readily observed that it would be practically impossible to support the plate-118 in any other manner than by having it attached to something projecting within the area circumscribed by the arm 112. As the rotatable shaft is the only thing available in this area, the plate 1l8'must be rotatably supported thereon in order to permit the shaft to rotate while the plate remains stationary. When the packages are discharged they are thrown backwardly along this plate and the edge of the table 62, but principally along the plate, so that the plate acts as a chute. On account of having the discharge depend upon the string which is tied around the package, the Package will not discharge unless it has been properly tied. The discharge member 96 then returns to normal position and the parts are ready to form another operation.

It will be readily observed that various portions of our improved machine may be modified or changed without departing from the spirit of this invention, and therefore, we do not Wish to limit ourselves to the exact construction or arrangement of parts herein shown and described, except as specified in the appended claims in which we claim:

1. In a machine of the character set forth, the combination of a parcel holder, means for rotating said holder substantially ninety degrees, a plunger in said holder, a spring for'raising said plunger, a ratchet and pawl for holding said plunger in depressed position, a vertically movable bar or member for compressing the parcelto be tied, a lug on said plunger to be engaged by the bar for depressing the plunger so that it will engage with the parcel, a tappet on said bar for engaging with the pawl for releasing {)he same andmeans for reciprocating said ar. I

2. In a machine of the character set forth, the combination of a frame, a shaft mounted in said frame, means for turning said shaft, a segmental gear onsaid shaft, a pinionwith which said gear is adapted to engage, a cord guide arm adapted to be turned by said pinion, a parcel support mounted on said frame, a cam on said shaft, means connecting between said cam and said support for -ing arm pivotally mounted on said frame and connected with said presser device, a cam on said shaft for actuating said arm, a

' slide, cuttingofi and stripping devices carried by said slide, a lever pivotally mounted in said frame and connecting with said slide, a cam on said shaft for actuating said lever, a cord holder, an oscillating head having a bearing from the frame, a knotter carried by said head,.a cam on said main shaft for. operating said'head at a predetermined'time, means connecting with said main shaft for turning said knotter, a lower string guide finger pivotally mounted on said frame, a link connecting between said finger and said head for operating thefinger, an upper string guide slidably 'mounted above said lmotter, a cam on said main shaft and means for actuating said upper string guide, from said cam, substantially as described.

3. In a machine of thecharacter set forth, the combination of a package support, a movable compression member, a pair of clamps for engaging a package, pivotally mounted on said member, a rod connecting between the upper ends of said clamps provided with means for limiting the outward movement of such ends, and a' spring be-- tween said upper ends for resisting the inward movement thereof.

4. In a package tying machine, the coma package support over which the string passes when the package is tied, and a discharge device coacting with said support and serving to discharge the package by engaging with the string.

6. In a tying machine, the combination of a turn-table for supporting the package to be tied, a plunger mounted in said table, a spring for holding said plunger in raised position, teeth in said plunger, a pawl for engagement with said teeth to hold the plunger in depressed position, a vertically movable clamp supporting bar mounted adjacent to the turn-table, means for operating said bar, a pair of clamps yieldinglymounted'on said bar, a second pair of clamps pivotally' mounted on said bar, a spring for turning said second pair of clamps out of alinement with the first named clamps, an arm on said a tubular sha t second named clamps, a guideon said turntable with'which said arm engages to hold said bar or releasing the pawl to permit the plun er to rise.

7. n a tying machine, the combination of a tubular bearing, and a rotatable cord guide arm mounted .on said bearing whereby the string or cord may be brought through the tubular bearing to engage with the arm.

.8. In a tyin machine, the combination of through which the cord is carried, a guide arm secured to said shaft, cord guides on said arm, and means for ro-' tating said shaft.

9, In a tying machine, the combination of a frame, a tubular bearing secured in said,

frame, a shaft mounted on said bearing having an openin therethrough for the string or cord, a gui e arm secured to said shaft, a package supportin' or guiding plate mounted on said shaft, ahnger on said plate, and a finger on said frame, having a recess for receiving the finger on the plate and having a string guiding portion, whereby the plate will be supported by said fingers but the string may pass between the same.

10. In a tying machine, thecombination of a lever having a head at one end thereof, a knotter carried by said head, means for turning said knotter, a carriage slidably.

riage for reciprocating the same, a cord holder stripper, knife, and knotter, stripper mounted on said carriage, and means for swinging said levers. v

11. In a tying machine, the combination of a lever having a head at the upper end thereof,v a knotter mounted in said head, means for turning said knotter, an arm pivotedto, said head having its free end adapted to enga e with the roller of the movable jaw of the notter, a spring for pressing said arm against the roller, a bar mounted on said carriage and having a cam at one side thereof for engagement with said arm to press the arm against the roller, a spring for holding said bar,in normal position, a cord holder stripper on said bar, a cord cutter on said bar, a knotter stripper lever pivoted on said carriage and having one end adapted to engage with the beak of the knotter, a cam on said head for. engagement with the outer end of the knotter stripper lever and a cam for actuating said first named levers to oscillate the head and reciprocate the carriage.

12. In a machine of the character set' forth, the combination of a bracket or support, having a hole therein for receiving a rod, the outer end. of said hole being enlarged, a rod passing through said hole, a head on said rod which co-acts withthe end of the bracket to form a cord holder, and

means forholding the head vyieldingly against the end of the bracket.

13. A cord holder comprisin a support having a hole therethrough, sai hole being enlarged at the outer end of the support, and having a lateral passageway communicatin therewith, a rod in said hole, a beveled head on said rod which engages with the end of the support, and a spring engaging with 5 said rod and tending to press the head against the end of the support.

14. A cord holder comprising a support BENJAMIN. H. BUNN. ROMANZO 'N. BUNN. Witnesses FRED A. KLEIN, HERMAN BAER.

'cent to the head to permit the egress of par- 20 ticles of cord or the'like.

Images