US298719A

US298719A - Paper-bag machine

Info

Publication number: US298719A
Authority: US
Publication date: 1884-05-20
Anticipated expiration: 1901-05-20

Description

(No'ModeL) 4 Sheets-Sheet 1.

O. W. ALLISON. PAPER BAG MACHINE.

Patented May 20, 1884.

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(No Model.) v 4 Sheets-Sheet 2. 0. W. ALLISON.

PAPERBAG MACHINE.

No. 298,719. Patented May 20, 1884.

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4 Sheets-;Sheet 3.

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0. W. ALLISON.

PAPER BAG MACHINE.

No; 298,719; Patented May 20, 1884;

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(No Modem" 4 Sheets-S heet-- 4.

0. W. ALLISON. PAPER BAG MACHINE.

No. 298,719. Patented May 20,1884.

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UNITED Ernrns Parent Orricn.

OSCAR WV. ALLISON, OF ROCHESTER, NEWV YORK, ASSIGNOR TO THE UNION PAPER BAG MAOHIN E COMPANY, OF PHILADELPHIA, PENNSYLVANIA.

PAPER-BAG MACHINE.

SPECIFICATION forming part of Letters Patent No. 298,719, dated May 20, 1884.

Application filed February 8, 188i.

To all whom it may concern.

Be it known that I, Osoan W. ALLISON, a citizen of the United States, residing in the city'of Rochester, county of Monroe, and State 5 of New York, have invented certain new and useful Improvements in Paper-Bag Machines, fully described and represented in the following specification and accompanying drawings, forming a part of the same.

This invention relates to a mechanism for the manufacture of satchel-bottom paper bags, and particularly to a mechanism of the general construction of that shown in United States Letters Patent No. 207,702, granted to me September 3, 1878.

It is the object of the present invention to effect certain improvements in the mechanism shown in said Letters Patent, by which its construction will be simplified and its operation be rendered more rapid, reliable, and satisfactory.

To these ends the invention consists in va rious details of construction and combinations of parts, all of which will be hereinafter fully explained, and particularly pointed outin the claims.

In the accompanying drawings, Figure l is a side elevation of a mechanism embodying the present improvements. Fig. 2 is a plan view of a portion of the same. Fig. 3 is an elevation of one of the revolving heads in which the blank is, held while the bag-bottom is formed. Fig. 4 is a diagrammatic section taken upon the line w of Fig. 3. Fig. 5 is a side 5 elevation of the carrier in which the revolving heads are mounted, showing also the mutilated gear by which the heads are rotated. Figs. and 7 are respectively side and plan views of the cam for opening and locking the 0 jaws of the heads. Fig. 8 is a side View of the guide for the movable jaw of the heads. Fig. 9 is a view of the blades for creasing the points of the diamond. Fig. 10 is aside view of one of the cams for operating said blades. Fig. 11 is a view of one of the collars or clips by which the creasing-blades are secured to their shaft. Fig. 12 is a plan view of the blade for imparting the central fold to the bagbottom after the points of the diamond have been folded and pasted. Fig. 13 is a side view of the same. Figs. 14 and 15 are respect- (No model.)

vely a plan and side elevation of the grippers for removing the completed. bags from the heads. Figs. 16 and 17 are respectively edge and side views of the devices for opening and closing the grippers. Fig. 18 is aside view of the apparatus for opening the tube to diamond form. Fig. 19 is plan View of the same. Figs. 20, 21, and 22 are details to be hereinafter referred to. Figs. 23 to 29 are diagrams illustrating the various operations involved in making the bag, and Fig. 30 is a View of the completed bag.

In the mechanism shown in the present case, as in that shown in the Letters Patent referred to, the web of paper from which the bags are to be made is first converted into a tube. In this operation the web 99 is led from a roll, (not shown,) and after passing around suitable guide and tension rolls, as'97, is led 7 beneath the former 98, around which it is folded and pasted by devices (not shown) operating in the usual and well-known manner. The former 98 is made of considerable thickness, so that as the tube leaves the end of the 7 5 former its sides will be separated some distance from each other and the paper at its edges will not be creased or bent abruptly. As the completed tube leaves the former 98 it passes between a pair of feeding-rolls, 95 96, one of which, 95, as shown, is of less length than the width of the tube, so that the tube will pass between said rolls without having its edges creased or broken down. As the end of the tube emerges from between the rolls 95 96 it passes above a stationary cutting-edge,

94., and enters and passes between the jaws 92 93 of one of the revolving heads, which at that time will be advanced slightly beyond the position shown in Fig. 1. The feeding-rolls 95 9o 96 are geared together in the usual manner, and are driven through gears 91 from a gear, 88, secured to the main shaft 89 of the machine. Secured to the shaft 89, just inside he frame, at each side of the machine, are a 5 pair of arms or carriers, 87, in the opposite ends of which are journaled a pair of shafts, S5, S6, uponwhich are mounted the jaws 92 93, constituting the revolving heads in which the tubular blank is held during the formationroo of the bag-bottom. These heads, as to their generallconstruction, and also the mechanism shaft, 85, the projecting ends of which rest in open bearings 84, (see Fig. 8,) formed in short arms 83, rigidly secured to the shaft 86. The shaft 85 is provided with suitable springs, (not shown,) which tend to hold the jaw 92 snugly against the jaw 93, andthe arms 87 are provided with cams 82, (see Figs. 6 and 7,) which, as the head revolves, act upon the ends of the shaft 85, so as to open the jaws at the proper point to receive the end of the tube, as

shown in Fig. 23. The shaft .86 is at one end provided with a gear, 81, (see Figs. 3 and 5,) which, through an intermediate, 80, engages with a mutilated stationary gear, 79, so that while the jaws 92 93 are being carried around the shaft 89 they are also intermittently rotated around the shaft 86, the gear 79 being so proportio ed that the jaws will make exactly one revolution around the shaft 86 while being carried once around the shaft 89, and so mutilated that the revolution upon the shaft 86 takes place near the point where the end of the tube enters the bite of the jaws.

To prevent the shaft 86 from turning in its bearings except at the proper time, the face of the gear 79 is provided with a mutilated disk, 77, (see Figs. 3 and 5,) which, as soon as the gears 79 80 pass out of engagement, is engaged by a locking projection, 78, upon the face of the gear 80, so that said gear and the shaft 86 are securely locked in position until the re-engagement of the gears 79 80. The disk 77 and gear 79 are provided with a slot, 76, and set-screw 75, by which they can be adjusted so as to properly time the revolutions of the head with relation to the other parts of the apparatus.

The jaws 92 93 are each provided with alongitudinal recess, 20, (see Figs. 3 and 4,) and a reciprocating folding-blade, 21, the purpose of which will hereinafter appear. The blades 21 are located in recesses formed between the bodies of the jaws and faceplates 22, supported a short distance therefrom, and are connected to the jaws by links 23, which permit them to have a reciprocating movement across the recesses 20. The in ward movement is imparted to the blades by means of arms 24, which are pivotally attached to the blades and project beyond the jaws,so that as the arms or carriers 87 revolve they will be acted upon by stationary cams 25, (see Fig. 2,) the blades being retracted by springs. (Not shown.) The tube having been passed between the jaws 92 93, as shown in Fig. 23, the latter will be advanced and rotated until the ends of the shaft 85pass off the cams 82, when the springs before referred to will close the jaws so as to hold the tube securely between them. By reason of the thickness of the former 98 and the shortness of the feeding-roll 95 the tube will enter between the jaws in a somewhat expanded condition, andwith its edges uncreased, so that when the jaws close the mouth of the tube will be caused to open, as shown in Fig. 18. As soon as the jaws have closed, the continuation of their revolution around the shaft 86 will carry the ends of the shaft 85 against the cam projections 74, (see Figs. 3, 6, and 7,) which will act upon the shaft, so as to hold the jaws firmly closed until the bag is completed. As the arms or carriers 87 continue to advance,the tube will be drawn downward across the knife-edge 94, and a bag-length will be severed therefrom. \Vhen the arms have carried the jaws to aboutthe position shown in Fig. 18, the gears 79 80 will pass out of en gagement, and the disk 77 and projection 78 will come into engagement, so as to prevent the head from further revolution upon the shaft 86. At or about this time the rear ply of the partially-opened tube will be brought into position to be taken bya pair of holdingo jaws, 26 27, and its front ply by a pair of moving grippers, 73, as shown in Fig. 24. The jaws 26 27, having taken the rear ply of the tube, will hold it stationary while the grippers 73 move forward with the front ply at a 5 a speed slightly greater than the movement of the head, so that as the head advances the tube is opened to diamond form. To accomplish this the grippers and jaws are arranged as follows: The grippers consist of a pair of I00 jaws', 29 30, the latter of which is provided with an opening, 38, (see Figs. 20 and 21,) which embraces a rod, 39, mounted upon standards 28 40, and of suitable form to give the grippers the proper path of travel. The jaw 30 is rigidly secured to a rod, 31, which is pivotally connected to one of a pair of arms,

47, extending laterally from a rock-arm, 32, extending from a transverse shaft, 33, (see Figs. 18 and 19,) the shaft 33 being provided no with a second rock-arm, 34, which is connected by a rod, 35, with a crank, 36, upon a second transverse shaft, 37, whichreceives motion, through a train of gears to be hereinafter mentioned, from the main shaft 89. The jaw II 5 29 is pivoted to the jaw 30, (see Fig. 20,) and is provided with a spring, 41, which normally holds the two jaws in a closed position. The jaw 29 is also provided with a laterally-proj ecting lug, 42, which, as the grippers are drawn rearward to receive the forward ply of the tube, comes into contact with a bar, 43, extending from the standard 28, so as to force the jaws apart and permitthe end of the paper to enter between them, as shown in Fig. 24. The 12 5 jaw 26 is rigidly secured to the standard 28, while the jaw 27 is pivoted to said standard,

and has its rearwardly-projecting end provided with a curved pivoted rod, 44, which passesthrough a bearing, 45, upon the rock- 1 0 arm 32. (See Fig. 22.) The rod 44 is provided upon its under side with a notch or a projection, 46, which, as the arm 32 is rocked forward, engages with the edge of the bearing 45, so as to cause said arm 32 to push the rod 44 forward, thereby rocking thejaw, 27 so as grasp and retain the rear ply of the tube between it and the jaw 26. As the arm 32 nears the end of its forward movement the bearing 45 will be rocked out of the notch 46, so as to release the rod 44 and permit the jaw 27 to fall away from the jaw 26 and release the tube. The arm 32 is provided at its upper end with a pair of laterally-extending arms, 47, upon which rest the free ends of a pair of rods, 48, the forward ends of which are pivoted to a pair of oscillating rods, 49, carrying at their free ends the diamond-fold pressers 50. The rods 48 are provided with notches or with projections 51, which, as the arm 32 is rocked forward, are engaged by the lateral arms 47, so as to move the rod 48 forward and carry the diamond-fold pressers upward againstthe faces of the jaws 92 93, as shown in Fig. 25. The movements of the parts are so timed with relation to each other that the pressers 50 are not brought against the faces of the jaws 92 93 until after the tube has been completely opened to diamond form. The pressers 50, coming against the faces of the jaws at that time, serve not only to flatten the diamond and define its folds, but also to strip the end of the front point of the diamond out of the bite of the grippers 73. The bars 52, to the front ends of which the rods 49 are pivoted, extend rearward above the rods 48, and at their rear ends are provided with downward projections 53. The projections 53 are so positioned that as the rods 48 are moved forward their ends will be pressed upward in front of said projections, as shown in Fig. 1, so that the elasticity of the parts will hold the rods in that position until the jaws 92 93 have passed entirely clear of the pressers, after which the rods 48 will fall of their own weight and the parts will resume their normal positions. As the completed diamond leaves the pressers 50 it will receive suitable lines of paste from the paster 54, which is of the usual construction, and is mounted upon the shaft 37, and supplied with paste from a fountainroll, 55, in the usual manner, as indicated in Fig. 1. At or about the time the first blank is receiving paste, as just described, the sec ond pair of jaws 92 93, carried at the opposite ends of the arms 87, will arrive in position to receive the advancing end of the tube 98, which will then be seized by those jaws, car ried downward, severed from the tube, and opened to diamond form, in the manner just described.

The shaft 37, which, as already explained, imparts motion to the paster and the diamondfold-forming apparatus, is provided with a gear, 56, which is connected by an interme diate, 57, with a gear, 58, upon a transverse shaft, 59, the gear 58 being in turn connected by a pair of intermediates, (3O 61, with the gear 88 upon the main shaft. The shaft 59 is provided with a pair of collars or clips, 10, (see Figs. 9 and 11,) located near its opposite 1 ends, in which are pivoted the arms 11 of a pair of oscillating creasing-blades, 16. The outwardly-extending ends 12 of the arms 11 are acted upon by a pair of stationary cams, 13, (see Figs. 9 and 10,) of such shape as to operate the blades at the proper times. The movement of the blades in the opposite direction is effected by a spring, 14, to the ends of which the arms 11 are connected by links 15. Each of the cams 13 is provided with a slot, 17, and a set-screw, by which it can be so adjustcd as to secure the proper action of its blade. The collars 1.0 and the cams 13 will be so adjusted that as the jaws 92 93, carrying the diamond-folded blank, pass upward past the shaft 59 the blades 16 will be thrown outward in succession and strike the points of the diamond, thereby creasing said points and forcing their fold-lines into the recesses 20, as shown in Fig. 26. To secure the smoothest action on the part of the creasing-blades their edges may be formed of small rolls, as shown in Fig. 9. Immediately after the blades 16 have creased the diamond, so as to cause its points to stand outward, as indicated in Fig. 26, the outward movement of the arms87 will carry the arms 24 into engagement with the cams 25, thereby projecting the blades 21 inward across the recesses 20 and folding the points of the diamond over onto its body, as indicated in Fig. 27. By the time the rods 24 have passed off the cams 25, so as to allow the blades 21 to retract, the jaws 92 93 will have arrived in position to co-operate with the tucking-blade 18, and at this point the ends of the shaft will pass off the shoulders 104- of the cam projections 74, so as to allow the jaws to open slightly. The blade 18 will then be advanced, so as to strike the diamond upon its center and tuck it backward into the bite of the jaws 92 93, thereby pressing the freshlypasted and folded points against the body of the diamond, so as to set the paste, and at the same time folding the bottom of the bagto the form shown in Figs. 28 and 30. The blade 18 is mounted to slide upon a pair of oscillating arms, 19, extending from a rock-shaft, 62, said shaft being provided with a third arm, 64, the end of which carries a stud, 8, which lies in the path of a cam, .66, secured to the face of a gear, 67, which engages with the gear 60. The blade 18 is provided upon its under side with bearings 6, which permit the blade to slide freely along the arms 19, and is pivotally connected by a pair of rods, 9, with a pair of rockarms, 7, extending from a transverse shaft, 63, said shaft being provided with a third rockarm, 65, which is connected by a rod, 68 with a crank-pin, 69, projecting from the face of the gear 61. (See Figs. 1, 2, 12, and 13.)

The various parts just described will be so timed with relation to each other and to the the arms 87 that as the latter carry the jaws 92 93 upward from the point where the arms 24 leave the cams 25 the shaft 62 will be rocked so as to carry the blade 18 along with said jaws, and at the same time the shaft 63 will be rocked so as to throw the blade 18 outward along the arms 19 and cause it to enter between said jaws, as shown in Fig. 28. After the bottom of the bag has been properly folded, the shafts 62 63 will be rocked in the opposite direction, so as to retract the blade 18 and carry it back to its normal position in time to co-operate with the jaws 92 93 upon the opposite ends of the arms 87 when they in turn arrive in proper position. As soon as the blade 18 has operated to make the cross-fold in the bag-bottom, as just described, the gears 79 80 will again come into engagement, and the jaws 92 93 will resume their revolution around the shaft 86, thereby carrying the ends of the shaft 85 into engagement with the cams 82, and causing the jaws 92 93 to open. As soon as the jaws have opened sufficiently to release the completed bag, its projecting bottom end will be taken by the oscillating grippers 70, as shown in Fig. 29, and withdrawn from between the jaws and carried into the bite of the tapes 71 72, to be delivered from the machine. As the completed bag is thus withdrawn from between the jaws they will arrive in position to again receive the advancing end of the tube 98, and so the operation will continue to be repeated, two blanks being severed from the tube and two-bags completed at each revolution of the arms 87. The grippers 70 are carried upon 7 the end of an arm, 100, extending from the rock-shaft 63, the movements of said shaft already explained giving to the grippers the proper range of travel to carry the bags from the jaws to the tapes. The grippers are operated to seize and release the bags at the proper time, as follows: The forward jaw, 5, of the grippers (see'Figs. 14 and 15) is made rigid with the arm 100, while the other jaw, 41:, is pivoted to said arm, and is provided with a rearwardly-extending rod, 101, to which is secured a spring, 102, the tendency of whiohis to hold the jaw 4 in a closed position. The end of the rod 101 is bent, as shown in Fig. 14, and is so positioned that its bent portion engages with a rigid cam projection, 3, and a pivoted cam projection, 2, upon the face of a plate, 103, (see Figs. 16 and 17,) supported upon the shafts 62 and 63. a From this arrangement it will be seen that as the shaft 63is rocked so as to carry the grippers toward the jaws 92 93 the portion 1 of the rod 101 will ride along the camprojection 3 and up the inclined side of the pivoted projection 2, thereby pressing the rod 101 against the spring 102 and holding the jaws 4 5 apart. As the grippers arrive in position to take the bag, the portion 1 of the rod 101 will pass off the upper end of the projection 2, thereby permitting the spring 102 to expand so as to close the grippers and seize As soon as the grippers have closed, the shaft 63 will be rocked in the opposite direction, so as to draw the bag from between the jaws 92 93 and carry it to the tapes..

As the arm 100 is raised the portion 1 of the rod 101 will pass downward upon the outside of the projection 2, so that the grippers will remain closed until the bag has been carried between the tapes. When the bag has been carried well into the bite of the tapes, the portion 1 of the rod 101 will again come into contact with the projection 3, so that the spring 102 will be compressed and the grippers opened. The arm 100 will continue its movement in the same direction until the grippers have been carried so far forward as to pass below the tapes 72, and the portion 1 of the arm 101 has passed beneath and to the rear of the projection 2.

It will be observed that as the grippers in their forward movement pass belowthe tapes 72 the bag just released from the grippers will be permitted to pass forward without obstruction between the tapes.

What I claim is- 1. The combination, with the thick-edged former, of feed-rolls, as 95 96, one of which is cut away, so as not to break down the edges of the tube, the revolving head which grasps the tube to carry it to the diamond-fold-forming mechanism, and mechanism operating independently of said head to form the diamond fold, all substantially as described.

2. The combination, with therevolving arms or carriers 87, of the revolving heads carried thereby, and (so-operating mechanism for forming the diamond fold operating independently of said carriers, all substantially as described.

3. The combination, with the revolving arms or carriers 87, of the revolving heads carried thereby, and cooperating opening, pasting, creasing, and folding mechanism, all substantially as described.

4. The combination, with the revolving arms or carriers 87 of the revolving heads carried thereby, and cooperating opening, pasting, creasing, and folding mechanism, and mechanism for removing the completed bag, all substantially as described.

5. The combination, with therevolvin g arms or carriers 87 of the jaws 92 93, carried thereby, and the holding-jaws and nippers, operated independently of said carriers, for opening the diamond fold, substantially as described.

6. The combination, with the revolving arms or carriers 87 of the jaws 92 93, carried thereby, the jaws 26 27, grippers 73, and pressers 50, substantially as described.

7. The combination, with the revolving arms 87 and the revolving jaws 92 93, carried thereby, of the creasing-blades 16, substantially as a described.

8. The combination, with the revolving arms arms or carriers 87, of the revolving heads can 12. The combination, with the revolving ried thereby, the carrying-tapes 71 72, and the arms 87, of the jaws 92 93, the tucking-blade IO oscillating grippers 70, for taking the com- 18, and the grippers 70, substantially as depleted bags from said heads and delivering scribed. 5 them to said tapes, substantially as described.

11. The combination, with the revolving Witnesses: arms 87, of the jaws 92 93 and the tucking- JOHN A. ALLIsoN, blade 18, substantially as described. JOHN F. ALDEN.

OSCAR XV. ALLISON.