US299097A - Paper-bag machine - Google Patents

Description

(No Model.)

4 SheQts.Sheet 1.

O. W. ALLISON.

PAPER BAG MACHINE.

Patented May 27, 1884 N PETERS. Pnom-Limo m w. Washington. D. c.

(No Model.) 7 4 Sheets-Sheet 2.

O. W. ALLISON.

PAPER BAG MACHINE.

No. 299,097. Patented May 27. 1884,.

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N. PETERS. Phomlilho n hur. wmm mn, DV 0.

(No Model.) .4 SheetszSheet 3.

0. ALLISON.

PAPER BAG MACHINE. I

No. 299,097. Patented May 27., 1884.

(No Model.) r 4 Sheets-Shet 4.

0. W. ALLISON.

PAPER BAG MACHINE. No. 299,097. Patented May 27; 18-84.v

UNrTen STATES PATENT Orrrcie.

OSCAR WV ALLISON, OF ROCHESTER, NEW YORK, ASSIG-N OR TO THE UNION PAPER BAG MACHINE COMPANY, OF PHILADELPHIA, PENNSYLVANIA.

PAPER-BAG MACHINE.

SPECIFICATION forming part of Letters Patent No. 299,097,dated May 27, 1:884. Application filed March 3, 1883. (N0 model.)

To all whom it may concern:

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

The present 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 an application for United States Letters Patent filed by me in the Patent Office on February 8, 1881.

It is the object of the present invention to effect certain improvements upon the mechanism shown in said' application, whereby it will be simplified in construction and rendered more rapid, reliable, and satisfactory in operation.

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

In the accompanying drawings, Figure 1 is a side elevation of a mechanism of the general structure of that shown in my prior application before referred to, but modified so as to embody the present improvements. Fig. 2 is a plan view of the same. verse vertical section taken upon the line at a: of Fig. i. Fig. 4 is a diagrammatic section showing the principal working parts. Fig. 5

- is a plan view of the devices for forming the diamond fold. Figs. 6 to 13, inclusive, are diagrams illustrating the various operations performed by the machine in making a bag.

. In the machine shown in the present case, as in that in the application 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 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,

Fig. 3 is a transso that as the tube leaves the end of the 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 cut away, so as to have a bearing surface 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 6 5 heads, which at that time will be advanced slightly beyond the position shown in Fig. 4. The feeding-rolls 95 96 are geared together in the usual manner, and are driven through gears 90 91 from a gear, 88, secured to the main shaft 89 of the machine.

Secured to the shaft 89, upon the inside of the frame of the machine, are a pair of arms or carriers, 87, in the opposite ends of which are j ournaled apair of shafts, 85 86, upon which 5 are mounted the jaws 92 93, constituting the revolving heads. The heads at the opposite ends of the arms 87 are exact duplicates; consequently a description of one will. suffice for both. The jaw. 93 is rigidly secured to the shaft 86, and the jaw 92 is secured to a shaft, 85, the projecting ends of which rest in open bearings formed in short arms 83, (see Figs. 1 and 3,) rigidly secured to the shaft'86, all as fully shown and described in my former appli- 8 5 cation, before referred to. The shaft of the jaw 92 is provided with suitable springs, (not shown,) which tend to hold the jaw snugly against the jaw 93, and the arms 87 are provided with cams 82, (see Figs. 2 and 4,) which, 0 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. 6. The shaft 86 is at one end provided with a gear, 81, which, through an intermedi- 5 ate, 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 proportioned that the jaws will make 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 just before and after 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, which, as soon as the gears 7980 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.

All of the foregoing features being exactly the same as in the structure shown in my prior application, reference is made thereto for a more full and complete illustration thereof.

The revolving heads, and also the mechanism by which they are operated, are also, as to their general construction, substantially the same as shown in my former Letters Patent No. 207,702.

The disk 77 and gear 79 are provided with an arm, 84, (see Fig. 1,) to which is connected a rod, 75, which passes through the frame of the machine, and is provided with set-nuts 76, by which means they can be adjusted, so as to properly time the revolutions of the jaws 92 93 with relation to the other parts of the apparatus. As in my former application, the jaws 92 93 are each provided with a longitudinal recess, 20, (see Fig. 3,) and with a folding-blade, 21, arranged to sweep across the face of said recess. In the present case, however, the blades 21, instead of being made-to reciprocate, are pivoted at the ends of the jaws, and are caused to sweep across the recesses 20 to fold down the folds of the diamond by a simple oscillating movement. To accomplish this movement of the blades they are provided with suitably-shaped arms 22, which, as the arms 87 revolve, 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. 6, the latter will be advanced and rotated until the ends of the shaft 85 pass 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 formation of the feeding-roll 95, the tube will enter between the jaws in a some what expanded condition and with its edges uncreased, so that when said jaws close upon it its mouth will be caused to open, as shown in Fig. 7. As soon as the jaws have been closed, they will be held together while the bag is being formed by the action of the cam projections 23, as described in my prior application.

1 Located just in advance of the cutting-edge 94 is a tension device, similar in construction to that shown in my former Letters Patent No. 207 ,702? This device consists of a small roll, 26, which is supported just below the cutting-edge 94 in arms 27, secured to a rockshaft, 28, j ournaled in suitable bearings in the a side frames of the machine just above the feeding-roll 95. The shaft 28 is provided with a rearwardly-extending arm, 29, the end of which is acted upon by a spring, 30, which tends to throw the roll 26 forward and upward from the position shown in Fig. 4. The shaft 28 is also provided with a forwardly-extending arm, 24, which, when depressed, is en gaged by a spring-catch, 31, so as to hold the roll 26 in the position shown in Figs. 1 and 4. As the arms 87 and jaws 92 93 continue to advance after closing upon the tube, a small inclined projection upon the face of the gear 81 will press the spring 31 outward, so as to release the arm 24 and allow the spring 30 to throw the roll 26 upward against the tube, so as to keep the same taut, as shown in Fig. 7. As the arms 87 continue to advance, the tube will be drawn downward across the knife-edge 94 and a bag-length will be severed therefrom, and at the same time the roll 26 will be drawn back to its normal position, (see Fig. 8,) where it will be held by the catch 24 until again released, as just described. At or about the time the blank is severed from the tube its leading end is carried into position to be acted upon by the apparatus for forming the diamond fold, as shown in Fig. 8. This apparatus consists of a curved forwardly-projecting arm, 32, which is attached to a yoke, 33, suspended loosely upon the shaft of the roll 96, and a pair of arms, 34, which are attached to a rock-shaft, 35, in such position as to straddle the arm 32. The arm 32 is provided upon its upper side with a swell or belly, 36, just in front of which is located a hook, 37, the purpose of which will hereinafter appear. The arm 32 is further provided with a spring, 38, which tends to hold the arm in its forward or raised position. The rock-shaft 35 is provided with a third arm, 39, which is acted upon by a spring, 40, so as to normally hold the arms 34 in their raised position, as indi cated in Fig. 8. As the jaws 92 93 arrive at the position shown in said figure, the rear ply of the partially-opened tube will pass beneath the hook 37, while the forward ply will pass above the ends of the arms 34. ,As the jaws continue to advance and rotate, the rear ply will be retained and drawn backward by the hook 37 while the arms 34, being pressed downward by the advancing jaws, will slide forward along the face of the jaw 92, carrying with them the forward ply, so that the end of the blank will be opened to diamond form, as shown in Fig. 9. \Vhen the arms have carried the jaws to about the position shown in Fig. 9, the gears 79 80 will pass out of engagement, and the disk 77 and projection 78 will come into engagement, so as to prevent the head from further revolving upon the shaft 86. The diamond, after being formed, as just described, will be kept distended and smooth upon the faces of the jaws by means of the presser-plates 41, which are located upon each side of the arms 34, and so arranged that the faces of the jaws pass in close contact therewith. As the completed diamond leaves the pressers 41, it will receive suitable lines of paste from an ordinary paster, 54, mounted upon ashaft, 50, and receiving paste from a fountain-roll (not shown) in the usual manner. At or about the time the first blank is receiving paste, as just indicated, the second 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, carried downward, severed from the tube, and opened to diamond form in the manner j ust described. The shaft 50, which, as already explained, imparts motion to the paster, is provided with a gear, 56, which is connected by an intermediate, 57 ,with a gear, 58, upon a transverse shaft, 59, the gear 58 being in turn connected by a pair of intermediates,60 61,with the gear 88 upon the main shaft. The shaft 59 is provided with a pair of collars or clips, 10, in which are fastened a pair of creasing-blades, 16. In the organization shown in my prior application herein referred to, these creasing-blades were arranged to oscillate so as to be projected against the points of the diamond carried upon the j aws 92 93,while in the present organization they simply rotate with but have no motion independent of the shaft 59. The collars 10 will be so adjusted upon the shaft 59 that as the jaws 92 93,

carrying the diamond-folded blank, pass upward past said shaft the blades 16 will in sue cession strike the points of the diamond, thereby creasing said points and forcing their fold lines into the recesses 20, as shown in Fig. 10. Immediately after the blades 16 have creased the diamond, so as to cause the points to bend outward, as indicated in said figure, the onward movement of the arms 87 will carry the arms 22 into engagement with the cams 25, thereby oscillating the blades 21 inward across the recesses 20, and folding the points of the diamond over onto its body, as indicated in Fig. 11. By the time that the arms 22 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 tuckingblade 18, which 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 freshly pasted and folded points against the body of the diamond, so as to set the paste, and at the same time folding the bottom to the form shown in Fig. 12. The blade 18, as in the structure shown in my prior application, is mounted to slide upon a pair of oscillating arms,19, extending from a rockshaft, 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 rock-arms, 7, extending from a transverse shaft, 63, said shaft being provided with athird rock-arm, 65, which is connected by a rod, 68, with a crank, 69, secured to the gear 90.

The various parts just described will be so timed with relation to each other and to the arms 87 that as the latter carry the jaws 92 93 upward from the point where the arms 22 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 said blade outward along the arms 19 and cause it to enter be tween said jaws, as shown in Fig. 12.. 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 into engagement with the cams S2 and causing the jaws 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 indicated in Fig. 13, 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 7 O are carried upon the end of an arm, 49, 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 times, as follows: The forward jaw, 5, of the grippers is made rigid with the arm 49, while the other jaw, 4, is pivoted to said arm, and is provided with a rearwardly-extending rod, 15, supported in a bearing, 12, upon the arm 49, and a spring, 14, the tendency of which is to hold the jaw 4 in a closed position. The end of the rod 15 is provided with a stud, 3, so positioned that it engages with a cam, 2, and a stud, 1, se

cured to the face of a plate, 13, supported upon the shafts 62 and'63. From this arrangement it will be seen that as the shaft 63 is rocked so as to carry the grippers toward the jaws 92 93, the stud 3 of the rod 15 will pass upward along the inside of the cam 2, thereby pressing the rod against the tension of the spring 14 and opening the jaws4 5. As the grippers arrive in position to take the bag,the stud 3 of the rod 15 will pass off the upper end of the cam 2,thereby permitting the spring 14 to contract, so as to close the grippers and seize the bag. 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 98 and carry it to the tapes. As the arm 49 is raised, the stud 3 of the rod 15 will pass downward upon the outside of the cam 2, so that the grippers will remain closed until the bag has been carried between the tapes; but when the bag has arrived at that position the stud 3 will come into contact with the stud 1, so that the spring 14will be expanded and the grippers opened. The arm 49 will continue its movement in the 1 same direction until the grippers have been carried so far forward as to pass below the tapes 72, thereby permitting the bag to pass unobstructedly forward between the tapes. As the arm 49 again moves downward,the stud 3 will again pass upward upon the inside of the cam 2, and so the operation will be repeated.

The combination,with a thick-edged former, of a revolving head arranged to grasp the blank and carry it to the diamond-iold-forming mechanism; also, the combination, with the revolving carrier, of the revolving heads and cooperating diamond-fold-forming mechanism; also, the combination, with the carrier, of the heads and cooperating opening, pasting, creasing, and folding mechanisms;

also, the combination,with the same, of mechanism for removing the completed bag; also, the combination,with the carrier and heads,of the creasing-blades, also,the combination,with the carrier, of the jaws and the folding-blades; also, the combination, with the carrier and heads,'of the tapes and oscillating grippers; also, the combination, with the carrier, of the jaws and tucking-blade; also, the combination, with the same, of the grippers, are not claimed herein, as these several features are claimed in my former application before referred to.

WVhat I claim is- 1. The combination,with the revolving arms or carriers 87, of the revolving jaws 92 93 and the oscillating arm 32, having hook 37, substantially as described.

2. The combinatiomwith the revolving arms or carriers 87, of the revolving jaws 92 93 and the oscillating arms 34, substantially as de scribed.

3. The combination,with the revolving arms or carriers 87, of the revolving jaws 92 93, the oscillating arm 32, provided with hook 37, and the oscillating arms 34, substantially as described.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

OSCAR W. ALLISON.

Witnesses: j

A. R. SELDEN,

H. (Pu-PHILLIPS.

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