US726866A - Paper-bag machine. - Google Patents

Description

Y PATEN-TBD MAY5,19 03. E. E. GLAUSSBN. PAPER BAG MAOHINE-- 'APPLICATION FILED MAR. 13; 1903.

11 sums-SHEET 1.v

N0 MODEL.

10.726,8664 y PATBNTED MAY 5,1903. E. E cLAUssBN.

PAPER BAG MACHINE.

APrLIo'AHTmN FILED MAB. 1a, 1903.

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PATENTED vMAY 5, 1903.

E. E. CLAUSSEN. PAPER BAG MACHINE. APPLIOATION FILED MAB. 13', 1903.

11 SHEETS-SHEET a.

` No MODEL.

PATBNTED MAY 5; 1903. E. E. GLAUSSEN.

PAPER BAG MACHINE.

APPLICATION FILED MAB.. 13, 1903.

11 SHEETSf-SHEET 4.y

NO'MODBL.

PATENTED MAY 5, 1.903. E. B. CLAUSSEN. I PAPER BAG MACHINE.

APPLICATION FILED MAR. 13, 1903.

N0 MODEL.

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No. 726,666. PATENTBD MAY 5,1966. E. E. GLAUSSEN. PAPER BAG MACHINE.

APPLIUATION FILED MAR. 13, 1903.

ODEL. ll SHEETS-SHEET 6` PATENTED MAY 5, 1903.

E; E. cL'AUssEN. PAPER BAG MACHINE. APPLICATION FILED MAB. 13, 1903.

11 SHEETS-SHEET 7.

N0 MODEL.

N0.726,866. -PATBNTBD MAY5,19,03. f

E.B.GLAUSSBN,`

PAPER BAG MAGHINE;

APPLIOATION FILED MAB. 13. 1903.

No MODEL. 11 SHEETS-s111121:

Nmzee. PATENTED MAY 5,1903.

E. E. GLAUSSEN. PAPER BAG MACHINE.

APPLIOATIMI FILED MAB.. 13, 1903.

N0 MODEL. 11 SHEETS-SHEET 9.

No. 726,866. PAT-ENTED MAY 5, 1903. E. E. CLAUSSEN.v

PAPER BAG MACHINE.

APLIOATION FILED MAB. 13, 1903.

N0 MODEL. 11 SHEETS-SHEET 10. f

' I l ,f/ l am@ A lPAT-Hmm) MAY a, 190s.

l No. 726,866..

E. E. GLAUSSBN. PAPER BAG MAGHINB.A AFPLIOATION FILED MAB. 13l 1903.y

N'o MODEL.

11 SHEETS-SHEET 11.

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`Patented May 5, 1903.

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ATENT DVARD F.. OLAUSSEN, OF HARTFORD, CONNECTICUT.

PAPER-BAG MACHINE.

SPECIFICATION forming part of Letters :Patent No. 726,866, dated May 5, 1903.

Application tiled March 13,1903. Serial No. 147,659. (No model.)

To @ZZ whom t may concern:

Be it known that I, EDWARD E. CLAUssEN, a citizen of the United States of America, and a resident of Hartford, in the county of Hartford and State of Connecticut, (with a post oflice address in the same place,) have invented certainnew anduseful Improvements at the place indicated by the letter A. Figs.

3 and 4 are a plan anda side view of a tuckedpaper-tube blank in thenextstageof its manufacture into :a squarebottom paperV bag. Figs. 5 and 6 areI a plan and a side View of the blank ot' Figs. 3 and4 still further advanced toward-its ultimate formation. Figs.

7 and 8 are a plan and' an edge vie'wot the.

tucked-paper-tube blank folded into the diamond form. Figs. 9 and 10 are-a plan and an edge View of the diamond blank of Figs. 7 and 8 still further folded toward its ultimate condition. Figs. 11 and l2 are a plan and an edge View of the next step in advance of the manufacture. Figs. 13 and 14 are a plan and an edge view of the .blank ot' Figs. ll and 12 still further advanced toward completion. Figs. 15 and 16 are a plan and an edge view of the blank of Figs. 13 and 14 with its bottom completed, but with its body remaining upon the folding-bed. Figs. 1 7 and 18 are aplanand an edge View of the complete paper bag removed from the folding-bed and with .its body straightened out.; Fig. 19 is a side elevation showing the gears, which drive the Various mechanisms for doing the work of the machine. Fig. 20 is a side elevation of the inner parts of the machine which the arrows point, which yare adjacent to the ends of the line 20. Fig. 2l is a front elevation of the machine looking in the direction toward which the arrow 21points in Fig. 20. Figs. 22, 23, and k241are detailed fviews of the cutting-olf mechanism on aufenlarged scale, Fig. 22 showi-ng the striking-off `blade retracted to its rearward position, and

Fig. 24 showing that blade in its forward p0- sition ready to sever the `bag-blank from the continuous tube. Fig. 25 is arear elevation of the machine lookingin the direction tol ward which the arrow 25 points in.Fig.,20.

view of the upper portion ofthe-folding-lbed, showin g the diamond form completed thereon.

Fig. v'is a left-hand side View of that which is shown in Fig. 29 looking in thedirection of the arrow 30 of that figure. `VFigsu'31 and show the preferred construction lof the tucking-plate, which forces a temporary fold lofzthel bag into a transverse recessacross the periphery of the cylinder. Figs-33 to 36 inelusive, are enlarged views ot' the nippers and their operating parts,I Fig-33 being a front elevation showing the jaws of the nippers as well as the side clips in their open position of adjustment, whereas in Fig..34 those side nippers and side clips areclosed upon the paper-bag blank. Fig. 35-is a plan view of Fig. 34, the right-hand side Vbeing shown in section on line 35 and in the direction of thearrows. Fig. 36i's`aside elevation of Fig. 34 and looking in the direction to- `ward which the arrows `pointw-hich. are adjacent to the ends of the 1ine.36..

The directionA of movement of vthe parts is shown by arrows adjacent thereto, and the positions of the various folding instrumentalities are shown irrespective of the relations of those positions to the cams which move those instrumentalities, it being sufficient for the purpose of this description to of Fig. 21 and looking in the direction toward say that the cams are properly laid out to pro- IOO duce the various operations of the folding instrumentalities at the proper time and to the required extent.

Mechanism for forming the tucked-paper tubing has long been well known in the art and examples of such mechanism are shown in many old patents, including No. 461,287, of October' 13, 1891, and others of still earlier date, and such mechanism is not shown in the drawings, because this machine operates upon continuous tucked-paper tubing as its received material and does notitself produce that material.

The bed 31, which supports the various frames and brackets of this machine, may be of any suitable construction and is adapted to support the side frames 32 and 33, which are provided with the inwardly-projecting hubs 32 and 33,

The hand-wheel 34 turns in the direction of the arrow 35, Fig. 19, and, together with the pulleys 3G, is fixed upon the shaft 37, which is journaled in the frames 32 and 33. That shaft also carries the gear 38, which meshes with the gear 39, which is loosely mounted upon the stud 40, and which stud projects outward from the frame 32. The gear 39 engages with the gear 41, which is journaled upon the stud 42, and the gear 41 meshes with the gear 43 upon the shaft 44, while the gear 43 engages with the gear 45 upon the shaft 46, and which shaft is journaled in the arms 47 and 48, and which arms are pivoted to the frames 32 and 33 by the pivots 49 and 50, respectively. The gear 41 also meshes into the gear 5l, which is fastened tothe shaft 52, and which shaft is journaled in the frames and The gear 51 meshes with the gear 53, which is fastened to the shaft 54, and which shaftis journaled also in the frames 32 and 33. The shafts 44, 4G, 52, and 54 carry.,respectively, the drawingrolls 55 and 5G and the holding-rolls 57 and 58, respectively. The gear 38 also meshes with the cylinder-gear GO, which is supported by the cylinder-shaft Gl, and which shaft is journaled in the inwardly-projecting hubs 32 and 33*L of the side frames 32 and The gear engages with the gear 62, which is fixed to the shaft (33, and that shaft at its oppositie end carries the beveled gear 64, which meshes into the beveled pinion 65,and which pinion is fixed to the vertical shaft G6, and which shaft is journaled iu the arms (i7n and 67b of the bracket G7, and which bracket is fixed 'to the outer side of the side frame The mechanism which produces the tuckedpaper tubingif delineated in the drawings would appear below the lower left-hand corner of Fig. 20, and, indeed, the numeral 59, which appears at that place, indicates the upper end of the float, which constitutes the forward portion of that part of the tucked-paper-tnbing-forming mechanism which has its place inside of the tube being formed. The upper end of the float 59 is provided with a serrated cutting edge for severing the tucked-paper tubing into bag-blanks, as indicated by the letter A in Figs. 1 and 2. As the tucked-paper tubing is continuously formed it is continuously drawn into this machine by the drawing- rolls 55 and 56, Fig. 20, and is thereupon cut into blanks, each of which is of proper length to form one complete bag.

The cutting mechanism is shown in Figs. 20, 2l, 22, 23, and 24 and is described in this paragraph. The gear 68 is Xed to thelower end of the vertical shaft 66, and it engages with the gear 69, which is loosely mounted on the stud 70, and which stud projects upward into the center of that gear from the bracket 71. The gear G9 is provided midway between its axis and its periphery with the radial slot 72, Figs. 22, 23, and 24, through which slot passes the stud 73, on the upper end of which is loosely mounted the block 74, and which block slides in a guideway 75 on the lower side of the arm 76. The outer end of the arm 7G is loosely mounted around the shaft 66, and its upper side is provided with the guideway 77, in which the striker-arm 78 reciprocates. That reciprocation is caused by the cam-groove 79a of the cam 79 and by the projection 78,which extends upward from the striker-arm 78 into that groove. Thus the striker-arm 78 is caused by the cam 79 to reciprocate radially from the shaft 66 and is simultaneously caused by the gear 69 to oscillate upon the shaft 60 as its axis of oscillation. The purpose of this combined reciprocating and oscillating motion is to carry the striker-blade 78h (which projects into the machine from the inner end of the striker-arm 78) iii-st to a position behind the continuous tucked-paper tube and then forward against the inner side thereof, so as to sever therefrom a bag length, extending above the plane upon which the striker-blade 78" thus oscillates. The amount or degree of oscillation of the arm 76 and the striker-arm 78 reciprocating therein can be varied by the position of the stud 73 by placing the same nearer or farther away from the center of the gear 69, thereby delivering a heavier or a lighter blow on the tube in the severing operation, which is very desirable when using heavier or lighter paper.

The mechanism for holding the tucked-paper tubing so that the striker-blade 78u can sever it into bag lengths is shown in Figs. 2O and 21 and is described in this paragraph. The forward end of the tucked-paper tubing is projected upward and forward by the drawing-rolls 55 and 5G into the bite of the holding-rolls 57 and 58. The roll 58 is provided on one side with a ilat surface 58, the purpose of which is to produce a slackness in the tucked-paper tube behind it preparatory to the severance of the latter. That slackness is produced by the rocking plate 81 pushing Iiatwise against the backward side of that reach of the advancing paper tubing which extends from the drawing- rolls 55 and 56 to the holding-rolls 57 and 58 at the instant that IOO IOS

IIO

the fiat surface of the holding-roll 58 is opposite to the holding-roll 57. That operation of the rocking plate 81 retracts the paper tubing between the rolls 57 and.58; but as soon as that retracting has occurred thecircular surface of the roll 58 again reaches opposition to the roll 57, so as to again clasp the paper tubing between those two rolls. At that instant the striker-blade 78b oscillates vigorously forward against the backward side of the now slaekened but firmly held reach of paper, which extends from the rolls 55 and 56 to the rolls 57 and 58, and tears that paper crosswise of itself against the resistance. of the serrated edge of the float 59 and also against the forward edge of the fixed blade 80, the blade 59 operating to cut the rearward ply of tlietucked-paper tubing and also the paper which constitu tes the two inwardlyinclined tucks, and the blade80 operating to cut the forward ply ofthe tucked-paper tubing on a lineless advanced than the line upon which the-serrated end of the fioat 59 does its cutting.

The mechanism which retracts the tuckedpaper tubing from between the holding-rolls 57 and 58 is shown in Figs. 20 and 21 and is described in this paragraph. The operative part of that mechanism is the rocking plate 81a, which is supported by the arms 81, and which arms extend backward from that rocking plate to hubs 81d, which turn loosely upon the shaft 52. The arm 81b extends forward from one of the hubs 81d and is providedat its outer end with a round projection, the axis of which is parallel with the shaft 52 and the periphery of which runs in contact with the edge of the cam 84. The arm 81c extends backward from the hub 81d, and to its Irearward end is connected the upper end of the spring 82, the lower end ofwhich is fixed to a fixed stud 83. Thus the cam 84 causes the arm 81b and the hub 81d and the arms 81 and the plate 81 to rock in onedirectiomand thespring 82 causes those parts to rock in the other direction, while the extent of that rocking is limited by the eccentricity of the cam 84 to the narrow range necessary for the plate 81a. The blank having been thus severed from the tucked-paper tubing, that bl'ank is further advanced by the rolls 57 and 58 until the forward end of the lower ply of the blank is seized and held upon the surface of the cylinder 85 by one or another of the six identical sets of folding instrumentalities, which are indicated in Fig. 20 distributed at equaldistanees around the peripheryof thecylinder, but which sets of folding instrumentalities may be `larger or fewer in number than six, according to the size of the cylinder. Those folding instrnmentalities are so complicated that they are not fully shown in Fig, 20, and it is sufficient to describe one set-as the 0thers are repetitions thereof. The periphery of the cylinder 8,5 is divided into 4six foldingbeds by ,means of the six deep recesses 85d, two of which, bounding one folding-bed, are shown in Fig. 31, and all of which are indicated in Fig. 20, and some of which are indicated in several other figures. l The mechanism which is attached to each ofthe six folding-bedsof the cylinder is describedin the following para- The cam 91 is fixed to the inwardly-project-A ing hub 33a of the frame 33 and is therefore immovable, though it produces motionin the rod 90. Each folding-bed of the'cylinder 85 is also provided with a pair of beveled-edged side clips 93, one of which is mounted on each side of the folding-bed. These side clips are rocked open upon pivots,94= by their respective arms 95, which are respectively worked by the arms 96, fastened to the shaft 87. The arm 96 on the right-hand side of the machine, as shown in Fig. 27, is provided with theprojection 97, which is engaged by the radiallylocated rod 98,V the inner end of which1 is forced outwardly at proper times by thecam 99, and which camis immovably fixed to the projecting hub 33?* of the side frame 33. Thus the outward movement of the Yrod 98 operates through the projection 97, the arms 96, the shaft 8,7, and the arms to rock open the side clips 93, and those side ,clips are reciprocally closed down upon the-folding-bed at proper times by the springs 100 forcing the plugs 101 radiallyoutward, as indicated in Fig. 27. The rod 98 is guided by the flanges ICO 85", projecting outward from the web of the .cylinder 85 over theface of the cam 99.

As a means for forming the transverse folding-line across the tucked-paper tube I have providedthe tucking mechanism, whichis` best shown in Figs. 20, 21, 26, 28,-31and 32,- which will now be described. .i Mountedabove the cylinder, asYV previously described, is the shaft 63,which has mounted thereto the framev The. frame 1 03 is designed with a duplicate set of tucking-blades 102, andtherefore each bladeoperates alternately upon the'v bag-blanks as they are presented in succession, and they are operated as follows; The stationary bracket 67, which is ,mounted on theoutside of theframe 33,-has an inwardlyprojecting hub through the frameand,car-v ,ries on its inner side, adjacent to theframe, `a fixed cam 105, into the grooveofwhich engages the projection 106 of the arm 107,1which IIO is held on the shaft108 and whichis jour- 4 l the shaft63, and therefore the arm 109 revolves in unison with the rotating frame ,naled ,in the arm 109, securely fastened upon member 103. On the inner side of the arm 109 and mounted on the shaft 108 is the arm 110, provided at its outer end with a slot 1103, which receives the sliding block 111, which engages a pin 112 of the frame member 103 and whereby the tucking-blades 102 are readily vibrated toward and away from the shaft 63, according to the groove in the cani 105, and thereby causing the bag-blank to be forced into a transversely-cut recess 113 of the cylinder 85. As the front end of the bagblank is held upon the face of the cylinder by the front clip 88 and the beveled-edged side clips 93 and is also gripped by the jaws of the pincers C when this tucking in of the blades 102 occurs, the bag-blank will be drawn forward from the back end, thereby making a space between the blank operated upon and the next succeeding blank. In the drawings I have shown two different modes of construction for forming this recess in the cylinder, which cooperates with the tuckingblades, one of them being represented in Figs. 31 and 32 and consisting of a groove 113, cut transversely into the face of the cylinder. The other construction is best shown in Figs. 26 and 28 and consists of a rocking jaw 114, extending across the face of the cylinder and having upon each sido the arms 1142, pivoted upon a hub held on the central web of the cylinder 85 on the shaft 115. One of the arms 114a is connected to the cam-arms 114), provided with the projection 114C, which engages the cam 116. The spring-plug 117 presses, by means of the spring 118, against the arm 114b until that arm is released from its cam 116 and rests against the pin 119, which is in a position to prevent the jaw 114 from pressing against the forward side of the recess of the cylinder 85, thereby producing the result shown in Figs. 31 and 32, but reducing the width of opening of the V-slack in the tube.

That portion of the machine which operates upon the upper ply of the paper-bag blank and which coperates with the folding mechanism previously described will now be eX- plained and is most clearly shown in Figs. 20, 26, 28, 29, 30, 33, 34, 35, and 36 and consists mainly of a pair of beveled-edged pincers mounted on each side of the cylinder and of the following construction: It will be noticed that the front and upper edge of the recess 113 (indicated by the numeral 176) coincides with the well-known primary transverse folding-line produced in the bag-blank, upon which line are also formed the apexes for the inwardly-projecting triangular folds produced by the diamond form. Extending laterally to each side of the cylinder and cast integral therewith are the frame-like brackets 121, with hubs 122 and 123, adapted to receive the oscillator 124, which is carried upon the shaft 1243 and upon which the pincers C are mounted, and which pincers are of the following construction: On the oscillator 124 (best shown in Figs. 33 to 36) is fastened the pin 125, which receives the slotted member 126 of the upper jaw ofthe pincers C and which acts primarily as a supportingplate for the lower jaw 127 of the pincers C. The upper jaw 126 I have shown preferably as square; but it could be of any other desired shape. The lower jaw 127 is bevel-edged to conform with the inwardly-projecting triangular fold of the completed diamond form. To the upper jaw 126 is pivotally hinged the link 128, the lower end of which is supported for oscillation on a stud 128, rigidly held in the oscillator 124. The lower jaw 127 of the pincers C is also pivoted on the oscillator 124 by means of the shaft 129 and engages the upper jaw 126 by means of the pin 130, held in the upper jaw 126 and engaging a slot in the lower jaw 127. Fastened to the shaft 129 is theiarm 131, having a projection 132,which engages a cam-groove in the cam-plate 133, and that cam-plate is connected to a -rod 134, which passes through and is concentric with the oscillator-shaft 124. To keep the pincers in a closed position when gripping upon the paper-bag blank, 1 have provided the springplug 135, pressing upon the arm of the lower jaw 127 by means of the spring 136.

By the means just described it is obvious that any motion imparted by the cams 137 in the direction of the axes of the rod 134 toward the center of the cylinder against the pressure of the spring 136 will separate the jaws 126 and 127 of the pincers C and simultane-` ously swing them outward and release the tube, which is the case when the pincers have arrived at the position shown in Fig. 33, and that as soon as the rod 134 is released by the cam 137 the springs 136 will force the jaws inward and clip the bag-blank, as shown in Fig. 34. To obtain this lateral inward movement of the rods 134, I have provided the cams 137, Figs. 26, 28, and 33, which cams are mounted on the inwardly-projecting hubs 32a and 33 of the side frames 32 and 33, respectively. The oscillator is provided with an oscillatory motion of nearly one hundred and eighty degrees about its shaft 124, and that motion is obtained through the following instrunlentalities: Adjacent to the outside of the hub 123 of the bracket 121 and mounted to the oscillator-shaft 124 I have provided sector-pinions 138, meshing into the sectors 139, which are securely held upon the shaft 140, carried in the hub 141 of the cylinder 85, and one of the sectors 139 is provided with a projection 142, which engages a camgroove in the stationary cam 143, supported on the hub 32:1 of the side frame 32, and whereby as the cylinder is rotated the projection 142 follows the groove of the cam 143 and causes the oscillator 124 to be oscillated upon the shaft 1241.

To aid in the diamond folding, 1 have also provided the deHecting-iinger 144, which enters the tube of the advancing bag-blank and is carried upon the shaft 145, mounted cross- Wise of the machine and journaled in the IOO IIO

completed diamond form is carried onward by the cylinder it` passes under the paster 152, to which paste has been applied by the well-known mechanism, which is not shown in this application. The paster 152 is also provided with transversely- disposed creaserblades 153 and 154, which cooperate with transversely- cut grooves 155 and 156 in-the cylinder. In this construction l have shown the paster as a double header, each head being exactly like the other in construction; but a single paster could be applied equally well, if desired. K

The means for folding the flap is as follows: The distance between the two creaserblades 153 and 154, measured on thecircumference of the paster 152, is equal to twice the depth ofthe tuck of the paper-bag blank, and that distance again corresponds to the distance between the outer edges ofthe transverse creaser- grooves 155 and 156, measured on the circumference of the cylinder. It will further be noticed that the transverse oreasergrooves 155 and 156 are equidistantly disposed on each side of the edge 176 of the recess 113, as indicated in Figs. 31 and 32. As the paper-bag blankpasses along the creaserblade 153 engages the groove'156, and thereby turns up the rear flap in a line about radial with the center of thecylinder, thereby permitting the folder-blade 157 to get behind the rear iiap, as shown in Fig. 20, and theV mechanism for operating the folder-blade 157 will now be described and is best shown in Figs. 20 and 25. Fastened to the lframe 33 and projecting outward is the bracket 158, Figs. 2O and 25, on which is journaled the shaft 159, which carries the folder-blade y157 and also the cam-arm 160, which engages a peripherally-cut cam-groove 161 of the cam 148 on the shaft 149. After the blade V157 has been caused to move behind the rear ap when the creaser-blade 153 engages the groove 156, as previously described, and the fiap has cleared the creaser blade 153 the folderblade is moved a trifle faster than the circumferential speed of the cylinder, wherebythe ap is completely turned over upon the bottom of the bag.

Asa convenient and reliable meansfor turning over the front flap I lhave provided the following mechanism,which is best shown in Figs. 26, 28, 29, and 30: On' the hubs 123 and extending forward are the' bosses 162, which formthe bearings for the trunnions 163 ofthe folding-plate 164,which is embedded in the top surface ofthe cylinder, and there- `the machine.

fore the plate forms a part ot` the surface of the cylinder when it is in its normal position, and the center lines of those trunnions coineide with the front edge of the transverse creaser-groove 155. Fastened upon the trunnions are the sector-pinions 165, meshing into the ysect-ors 166, which are rigidly secured upon the sleeve 167 and journaled inthe hub 141 ofthe cylinder 85. On the left-hand side the sector 166 has the arm 168 integral therewith, to which is pivotally jointed the radially-disposed rod2169, guided in a [lange 170, projecting from the central rib of the cylinder. Thelower end of the rod 169is arranged to engage the cam 171, which is fastened on the inwardly-projecting hub 33a ofthe side frame 33. A tension -spring 172 tends to keep the folder-plate 164 down in its forward position of adjustment, as indicated in Fig. 29; but as soon as the lower end of the rod engages the cam 171 the same is caused to move radially outward away from the center of the cylinder and, through the sectors 165 and 166, turns over the plate 164 on its trunn'ion163andtherewithturnsthe frontfiap over upon the bottom of the bag and therebyoompleting the same. The bag is then delivered into the delivery mechanism, which consists of the scraper 173, and transferred by the endless belts 174 and 175, which pass over idler- pulleys 177 and 178.

The operation of the machine is as follows: The roll of paper which isto be converted into square-bottom paper bags is mounted at the front end of the machine and the paper has paste applied and then passes around the guide-rolls and folds around the former and is converted into a continuous tucked-paper tube in any well-known manner and 'is then guided into the bite of the drawing- rolls 55 and 56 and whereby thetube is drawninto float 59 of well-known construction and which is located inside of the tube. As the leading end of the tube advances it is also received between the holding-*rollsV 57 'and' 58, and when the cut-away portion 58 of the roll58 is opposite the roll 57 the plate 81a is caused to be moved acrossthe path' ofthe tube by means of the arm 81", iii-engagement with the cam 84, whereby the leading end of the tube is slightly drawn backward, and as the holding-roll 58 continues to revolve and again grips the tube the striker-blade 78 is forced against the lower ply of the tube and severs the bag --blank from the continuous tube The former terminates in the IIO IIS

IZO

against the serrated lioat 59 and the blade 80.

The length of bag-blank isdetermined bythe 'vances toward the folding mechanism it 'enters between the cylinder and the tucking- '.blade 102 on the frame member 103 and as soon as the lower ply -is clamped upon the cylinder by the front clip 88 and as the bagblank continues to advance is also clippedbyv the side clips 93 entering between the tucks of the blank, and simultaneously the jaws 120 and 127 of the pincers C close upon the tube. The tucking-blade 102 is then forced into the transverse recess 113 of the cylinder. The pincers C are then caused to be oscillated about the center of the oscillator-shafts 124, and simultaneously the defiecting-tinger 144 enters the advancing front end of the bagblank and assists in turning the upper portion of the blank backward as the cylinder moves toward the same, and when the diamond is completely folded over the same is pressed down and ironed out into its final proportions by the ironing-plates 151, which are brought down upon the face of the cylinder by means of the cam-groove 147 and its coperating arm 146. The pincers Care then withdrawn from the tube and the paste applied by the paster 152, which has had paste applied thereto previously by any of the wellkuown mechanisms, and the front clip then releases its grip on the paper tube, and as the transverse creaser- blades 154 and 153 engage the 'transverse creaser-grooves 155 and`15G, respectively, the paper-bag blank is creased across the diamond-formed blank, thereby prestablishing the rectangular shape of the bottom of the bag and simultaneously raising the second flap from the surface of the cylinder, and this fiap is immediately backed up by the folder-blade 157, and as the cylinder continues to rotate the folder-blade is caused to be moved at a speed faster than the circumferential speed of the cylinder, thereby bringing the fiap down upon the bottom of the bag. The folder-plate 164 is then brought out of its normal position and turns that flap over as the cylinder continues to revolve and immediately returns toits normal position, and the bevel-edged side clips are then released, thereby permitting the bag to be delivered into the bite of the endless belts 174 and 175.

What I claim as new, and desire to secure by Letters Patent, is

1. 'In a machine for severing blanks from continuous tucked tubing, the combination of the drawing-rolls, the holding-rolls, the float, the xed blade1 the shaft 66, the arm 76 pivoted on the shaft 66, means for oscillating the arm, the striker-arm 78 mounted for reciprocation in the arm 76, and the cam 79 mounted on the shaft 66 for reciprocating the striker-arm, substantially as described.

2. In a machine for severing blanks from continuous tucked tubing, the combination of the drawing-rolls, the holding-rolls, the float, the fixed blade, the shaft 66, the arm 76 pivoted on the shaft 66, the gear G8, the gear 09, the block 74 and the stud 73, mounted on the gear 69, the striker 7S mounted in the arm 7G and the cam 79 for reciprocating the striker-arm substantially as described.

In a machine for severing blanks from continuous tucked tubing, the combination of the drawing-rolls, the holding-rolls, the float,

the fixed blade, the arm 7G, means for adjusting the oscillation of the arm 76 to a greater or less degree, the striker-arm 7 8 mounted in the arm 76, and the cam 79for reciprocating the striker-arm, substantially as described.

4. In a paper-bag machine, the combination of a pair of drawing-rolls, a pair of holding-rolls, the flat surface 58a on one of the holding-rolls, the fioat, the fixed blade, the striker-blade, the rocking plate S1 and means for operating the rocking plate, all operating substantially as described to draw the paper tube into the machine, to form a slack therein and to sever the tube, substantially as dcscribed.

5. In a paper-bag machine, the combination of a pair of drawing-rolls, a pair of holdiug-rolls, the fiat surface 58 on the upper forward holding-roll, the iioat, the fixed blade, the striker-arm, means for oscillating and reciprocating the same, the rocking plate 81 and the cam S4 for operating the rocking plate, all operating to draw the forward reach of the paper blank backward to form a slack therein and to sever the tube, substantially as described.

0. In a paper-bag machine, the combination of a pair of drawing-rolls, a pair of hold ing-rolls, the fiat surface 58a on the upper forward holding-roll, the float, the fixed blade, the striker-arm and the rocking plate 81 mounted substantially above the fioat and rearward of the holding-rolls, all operating to draw the forward reach of the paper blank backward to form a slack therein and to sever the tube, substantially as described.

7. In a machine of the class specified, the combination of the continuously-revolving cylinder, the transverse groove 113 in the cyl inder, the contiu uously-revolving frame member 103, blades 102 mounted in the frame member, the fixed cam and intermediate mechanism to vibrate the frame member into the recess of the cylinders, substantially as described.

S. In a machine of the class specified, the combination of the continuously-revolving cylinder, the transverse groove 113 in the cylinder, the boxes 104, the frame member mounted on the boxes, blades mounted in the frame member, the arm 100, the shaft 108 mounted in the arm, the fixed cam 105, the camarm 107 and the arm 110, all substantially as described.

9. In a paper-bag machine, the combination of the cylinder, the front clip, the beveledged side clips, the oscillators 124, the pincers C, mounted on the oscillators and adapted to swing toward each other to grip the paper blank, all combined and operating to unfold a paper blank, to form the inside trianguiar folds and to convert the same into the diamond form, substantially as described.

10. In a paper-bag machine, the combination of the cylinder, the front clip, the beveledged side clips, the oscillators 124, means for operating the oscillators, the pincers C,

IOO

IIO

mounted on the oscillators and adapted to swing toward each other to grip the paper blank, all combined and operating to unfold a paper blank, to form the inside triangular folds and to convert the same into the diamond form, substantially as'described.

1l. In a paper-bag machine, the combination of the cylinder, the front clip, the beveledged side clips, the oscillators 124, means for operating the oscillators, the pincers C, mounted on the oscillators and adapted to swing toward each other to grip the paper blank, means for operating the pincers, all combined and operating to unfold a paper blank, to form the inside triangular folds and to convert the same into the diamond form, substantially as described.

12. In a paper-bag machine, the combination of the revolving cylinder, the front clip, the bevel-edged side clips, the oscillators, the upper jaws 126, the lower jaws 127 in cooperation with the upper jaws, and means for operating the lower jaws, substantially as described. l

13. In a paper-bag machine, the combination of the revolving cylinder, the front clip, the bevel-edged side clips, the oscillators, means for operating the oscillators', the upper jaws 126, the lower jaws 127 in coperation with the upper jaws, and means for operating the lower jaws, substantially as described.

14. The combination of the oscillator 124, the upper jaw 126, the link 128, the pin 125, the lower jaw 127, the arm 131, thecam-plate 133 and the rod 134, substantially as described.

15. The combination of the shaft 124i, the oscillator 124 mounted on the shaft, means for operating the oscillator, the upper jaw 126, the link128, the pin 125,.the lower jaw 127, the arm 131, the cam-plate 133 and the rod 134, mounted concentrically with the shaft 124iL and the fixed cam 137, substantially as described.

16. In a paper-bag machine, the combination of the revolving cylinder, the front clip,

the bevel-edged side clips, the oscillators,

means for operating the oscillators, the upper jaws 126, the lower jaws 127 in copera' tion with the upper jaws, means for loperat` ing the lower jaws, andthe deiiecting-tinger 144, all substantially as described.

17. In a'paper-bag machine, the combination of the revolving cylinder, the front clip,

the bevel-edged side clips, the oscillators,

means for operating the oscillators, the upper jaws 126, the lower jaws 127 in coperation with the upper jaws, means for operattrunnions substantially in line with the edge of the groove 155, and means for oscillating the folding-plate, substantially as described.

19. In'a paper-bag machine, the combination of the revolving cylinder, the groove 155 cut in the circumference of the cylinder, the folding-plate 164, embedded in the surface of the cylinder and vibrating upon trunnions vsubstantially in line with the edge of the groove 155, the sector 165, the sector 166, the

sleeve 167 and the fixed cam 171, substantially as described.

Signed at Hartford this '12th day of March,

EDWARD E. CLAUSSEN. Witnesses:

JANETTE S. ELLSWORTH, SYLvEs'rER BARBOUR.

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