US709451A - Bag-making machine. - Google Patents

Description

5 Sheets-Sheet I.

Patente'd Sebt. l6, I902.

J. F A M E S.

' BAG MAKING MACHINE. (Apphcatxon filed Feb 28, 1900 THE NORRIS Farms c0, Pnotuumu, WASHINGTOMP. c4

(No Model.)

No. 709,45l. Patented Sept. l6. I902.

J. F. AMES.

BAG MAKING MACHINE.

(Applicabiun filed Feb. 28, 1900.)

5'SheetsSheet 3.

(No Model.)

rm L.

Patented Sept. 16, I902. J. F. AMES.

BAG MAKING MACHINE.

(Apphcatmn filed Feb 28, 1900) 5 Sheets-Sheet 4.

(No Model.) I

(No Model.)

Pa tented Sept. I6, 1902.

J. F.AMES.

BAG MAKING MACHINE.

(Application filed Feb. 28, 1900.)

5 Sheets$heet 5Q EL HHlllllllliE Willi!!! lam llll ll! llllliu U IT D STATES PATENT OFFICE.

JOHN F. AMES, OF PORTLAND, OREGON.

BAG-MAKING MACHINE.

SPECIFIGATION forming partof Letters Patent N 0. 709,451, dated September 1 6, 1902.

Application filed February 28, 1900. Serial No. 6,827. [No model.)

To all whom it may concern:

chines; and I hereby declare the following to be a full, clear, and exact description of the same.

My invention relates to a machine for making bags complete from cloth which is furnished in continuous rolls or lengths of any desired quantity. The machine or apparatus includes means for feeding the cloth from a continuous rolland advancing it through the machine, first, to acutter by which it is cut to a desired length to make the desired size of'bag; secondly, to a folder hy which the folding device.

separated sheet is folded centrally, so as to bring the edges together.

The folded sheet is theu advanced to a sewingmachine, which sews one end. It is then advanced to a point where its direction of motion is changed, and it is moved transversely and at right angles with its former direction, thus passing the edges of the folded sheet through another machine, which sews up this edge. The bag is thus completed with one side formed by the fold, the bottom sewed across by the first machine, and the sides sewed up by the second machine as the bag moves transversely through it. Bags thus completed are discharged at the end of the machine and have the ad vantageof being formed with a finished selvage at the open month. My invention also comprises details of construction by which this operation is carried out.

Referring to the accompanying drawings, Figures 1 and 1, Sheets 1 and 2, are a plan view of the machine. Fig. 2 is an elevation of the cloth-supply device. Fig. 3 is a detail ofthe device for operating the shears. Figs. at, 4:", and 4, Sheets 3, 4;, and 5, are the front elevation of the machine. cal section through the cloth-feeding device. Fig. 6 is a top View of the rollers used in the Fig. 7. is an elevation of that part of the machine which extends at right angles from the extreme right of the machine. Fig. 8 shows a modification of the cloth-feed.

The object of my invention is to form com plete bags having a finished selvage around the month, said bags being formed continu- Fig. is a vert'i alents.

Iuthe present case I have shown the machinery necessary to carry out my invention mounted upon a main framework A of any suitable description.

Power to drive the various mechanism is derived from a belt, chain, or other (1l'lV6l2, passing around a pulley or sprocket-wheel 3, and upon the shaft of this pulley is mounted a pinion 4, the teeth of which engage the corresponding teeth of a gearwheel 5, thus transmitting power to it. Upon this shaft and preferably at each side of the machine are mounted disks 6, which are turuahle in unison with the shaft. These disks are slotted radially, as shown at 7, and crank-pins S are mounted upon blocks or carriers slidable in these slots, and they are adjusted to or from the center by screws 9 orequivalent devices. From the crank-pins 8 pitmen or connecting-rods. 10 extend and connect with sliding rodsll. These rods travel through guides 12, arranged along the sides of the machine at suitable intervals, and they carry various mechanisms by which the operationsof forming the bag are produced. The sliding rod is an important feature of the machine. It operates the lever which works the knife to cut the cloth, the lever which operatesthe folding mechanism, the lever which actuates the twine-cutter between the bags after the ends are sewed, the roll that changes the movement of the bags and passes them to the second sewing-machine, where the sides are sewed, and the final cutter for severing the thread after the bag is completed.

The cloth from which the bags are to be made will be of sufficient width to make the length of a bag, (and as it iswoven with selvages upon the sides there will he no raw edges at the open end of the bag,) which is.

important, and especially in largersizes of bags. This cloth may be brought to the apparatus from any suitable source of supply 7 desired.

and in any convenientor suitable manner. In the present case I have shown the cloth I; as mounted upon large rolls, as shown at 13, and these rolls may carry a thousand or fifteenhundred yards or more, if desired. Power to rotate the roll is derived through mechanismintermediate between the roll and the main driver. As here shown, a belt 14 passes from a -pulley15 on the shaft of the gear5toa pulley 16,and from a pnlleydriven by 16 a belt passes to another pulley 17,- be tween which and thecloth-roll is a small pulley 18, mounted upon a shifting arm 19, suitably pivoted or supported so that the pulley 18 may be interposed between -17 and 13, if

By means of this pulley the movement of the cloth-roll can be reversed at pleasure. from the roll passes through suitable guides and 'tension devices, as shown at 20. Thence it passes up between rolls 21 and 22, which act as feeders to advance the cloth which is pressed between them. Theconnecting-rod of pit-man 10, previously described, acts to r'eciprocatea rack-bar 23, which is moved in unison with the sliding rodll. The teeth of this rack-bar engage the teeth of a pinion 24, and upon the shaft with this pinion is mounted a ratchet-wheel 25. A pawl 26, carried by the gear-shaft, engagesthe teeth of the ratchet-wheel 25 when upon a forward movement of the rack-bar and rotates the ratchetwheel and the .drum or roller 22, the relation, arrangement, and proportions of the parts being such that the cloth is advancedbetween-these rollers a distance equal to twice the stroke. of the rack-bar. The length of this stroke is regulated to suit the size of bag to be made by the movable crank-pin 8 and the adjusting-screw 9, by which the radius and throw of the crank are changed as the cloth is thus moved forward between the rolls on the forward motion of the crankand rack-bar and remain stationary on the reverse or backward movement. This shows one means for intermittently advancing the cloth. Another form is shown in Fig. 8, in whicha spi-oeketwheeli's substituted for the gear 24, and a sprocketchain connecting withasliding frameapasses over-.the sprocket-wheel and hanging down has a weight d at its lower end, which thus keeps the chain engaged with the teeth of the sprocket. The forward movement of the sliding frame, which is the equivalent of the rack-bar 23, then acts to rotate the sprocketwheel' by pulling on the chain, and thus acts through the ratchet-wheel 25and pawl 26, as previously described. The weight (1 will revolvethe sprocket-wheel in the opposite direction upon the return movement of the crank and pitman in the same manner that the gear-wheel 24 isacted upon. Other equivalent devices may be employed for producing the necessary reciprocation; but these fairly illustrate the operation.

The upper roll 21 has its journal-shaft sup- As at present shown, the cloth portedbya frame 27, which is pivoted, as shown at 28. e

.29 is a beltwhich passes around the rollers or drums 22," 30, 31, 32, 33, and 34, and this belt serves to support the cloth after it leaves the drums 21 and 22. The rollers 32 and 34 are sufficiently separated to allow the knife 35 to reciprocate vertically between them,'and the roller is situated sufficiently lower than these two to carry the belt 29 down below the lowest point to which the knife or cutter moves, thus protecting this carryingbelt from being cut by the knife. Various forms of cutter may be employed. In the present case I have shown an upper movable cutter35 and a lower stationary cutter over which the cloth-passes betweenthe rollers 32 and 34. The upper knife is pivoted at one end, and at the opposite end is operated bya lever-arm 36,- which is pivoted, as shown at 37.'

38 is an inclined surface carried by the sliding rod 11 in its reciprocations, and this incline on its backward movement engages a pin 39 on the end of the lever 36 which is opposite'to the connection with the knife 35.

The action of this incline forces the knifeblade down and severs the cloth at this point, while it remains stationaryv during its intermittent movement. As-soon'as the sliding rod moves-forward and carries the incline 38 out of engagement of the pin a spring 40 acts to return the knife to its position, and when the cloth is again advanced it passes from the roll34 to the roll 32, and the corresponding pressure-rollers 41 above acting with 32 and 34 continue to advance the cloth beyond this point. After leaving the cutter the cloth passes between the rollers 31 and 42, which continue to advance it, and thence over the roller 43. Between the rollers 31 and 43 are situated two small rollers 44 and '45. The cloth after being severed by the cutter is-carried along by the next reciprocation, so that its center is exactly in line beneath the folding-blade 46, which is operated by lever-arms 47. These lever-arms are f ulcrumed, as shown at 48, and have pins 49, which are engaged by the inclines 50,0arried by the sliding rodll and acting upon the pins 49 to tilt the lovers 47 in the same manner 'as described for actuating theocutter, except that in this case both ends of the folder are moved down simultaneously, and the blade striking the cloth forces its bight down between the rollers 44 and45, thus folding the cloth exactly in the middle. The folder is returned after the pin 49 is released from theincline 50 by aspring or springs 51, and this leaves the way clear for the cloth to be again advanced on the forward motion of the stroke. Since the roll 42 rests upon the cloth, it is necessary to raise it at the instant when the foldingblade is pressed down to pass the fold of the cloth between the rolls 44 and 45. This is effected by levers 52, fulcrumed, as shown, at 53 and carrying the journal-box of the roll 42 at one 1o stitching. In order t'okeep theroll42 raised nntil the cloth has, been entirely withdrawn from between 42 and 31 by the action of the i around and over suitable guide and direction end and having the other end connected with thelever 47, as shown at 54, so that when thisleveris moved todepress the folder the first action will be to lift the roll 42- and allow the length of clothfrom which the bag is to be made to be freely advanced from the rear, while theportion which has passed the folder will be equally drawn back-ward, so that when the foldis complete the twoedges of the cloth willbe brought togetherready for folding-rolls44 and 45 the incline 50, which first acts to raise the roll and to depressthe folder, is continued in an approximatelyhorizontal plane, so that the-partsarc held in this position until the return movement of the stroke has beenverynearly completed,

a movable bearing.

7 around the roller 55.

when theincline 5'0, arriving beneath the pin 49, willallow the parts to resume their normal position. I 1

In order to prevent the clothfrom being cutby too great pressurein case it is creased orto allow it to pass between the rollers 44 and if any thickening ofthe cloth takes place, I have shown the roller 45 mounted in This movable bearing in the present caseis carried byythe levers c, pivoted at d just below the roll, and bymeans of a spring f suflicient pressure is brought upon thelever to holdthe roller 45 very firmly;

against 44, bntyet allowing it to yield, so

that i fthe bag- 0 becamecreased itwould pass betweenthe rolls without being cut. The

foldedcloth now passes down and is delivered to passbeneath a roller 55, around which pass then carried to the first sewi ng-machine,\vhich is indicatedat 58. The belts 56 and 57 pass rollers. Theaupper beltisshown as passing from the r0ller5 5 over theroller 59,thence along the level, passing the sewing-1nachine 5 8,thence around the roller 60, thence over the adjustable tension roller 61, thence returning to roller 55. Belt 57 passes in unison it with the belt over theroller 59, thence to the rear end of the machine over a roller 62,thence returning to a directionroller 63,thence passingaround guide-rollers 64, which return 1 it to againcoincide with thebelt 56, passing When the folded bag 0 reaches thefirst sewing-,machine o8, being carried along between the belts56and 57,

the folded edge, whichis to form the bottom of the bag, passes through the sewing-maehine, so that the reciprocation of the needle will sew this edge asitpasses. it The proportionate speed of the parts is such as to inaintain a slight forward tensionaupon the material. Anysuitable form orarrangement of bagnextpasses beneath theroller'60, and a thread-cutter at 69 serves tosever the thread bywhich the bottom of the bag had been sewed. The bag then passes on and between. the rollers 70 and 71, which continue to ad- Vance it until it strikes a stop 72. At this point the motion ischanged and thebag is moved at right angles'with its previous movement by means of a roll 73. After leaving the rolls at 6,0 and the blades of the shears which cut the thread between the bags the bag passes between the two rolls 7O and71, which'move more rapidly than thebelts, and the bag is th us carried forwardto the stop 72, which: limits its motion in that direction; At this instant the roll 73 is raised by the action of the sliding rod 11, which in its reciprocations causes a block 77 to act upon an arm 79 on a rod 80, which carries the levers 74, in the ends of which the roller73 is mounted. As soon as thebag has reached the stop 72 the roller, 73 is ;lowered, and, pressing upon the 7 bag, motion communicated to rotate this roller causes the bag to be moved at right angles with its former movement. This movement ,ofthe bag carriesit beneath the second sewlug-machine, which is indicatedat 76, and the unfinished edge, which is the one formed by the previous folding of the bag and bringing the two edges together, is then sewed by this machine. A The movement of the transverse belts 78, which carry this bag, is so-regulated that the rear endof the latter passes sufficiently forwardto permit the next bag to pass without interference when it is advanced to [the stop 72. Afterpassing the second sewing-machine the twine or thread by which the bag wassewed is cut by a mechanismsimilar to that described at 69, and the bag is then ready to be discharged. i r t The mechanism foractuating the shears 69 is operated as follows: A block 77-is.carried by the sliding rod. The upper part ofthis block carries a divergent plate, and this plate acts when the rod moves in one direction to tilt alever-arm 79, this arm beingllnounted jupon apivot-shaft 80. 1 Another arnnofthe jpivot-shaft projects in such away-that it acts at 81, so that it will yield, tilting in the line of movement of the rod 11 or'block 77, so that it passes beneath the plate, until the narrower portion of the plate comes in line with it,

when the part 81 will be returned by a suitable spring, so that it is in line to be again acted upon by the diverging edge of 77 to again close the shears. The mechanism for raising and lowering the roll 73, by which the direction of the bag is changed, is operated from the sliding rod by a similar mechanism to that previously described for lifting the roll 42.

I have here confined myself to a description of the. movements of the cloth and the bag and such portions of the apparatus as it is necessary to describe for a clear understanding of the manner in which the material is advanced from the sourceof supply to the point where the finished bag is deliveredfrom the machine. I have omitted the description of many of the belts and pulleys, most of which are preferably chain belts running over corresponding sprocket-pulleys, so as to insure a unison in the movement of the parts. It will be manifest that the arrangement of these pulleys for the best operation of the necessary parts is largely a matter of the skill and judgment of the mechanic, as various arrangements of such driving parts may be made, all of which will produce equivalent results.

As the parts which carry the cloth move intermittently and the belts which carry the folded bag to the sewing-machine move continuously, a small space is made between the adjacent bags sufficient for the operation of the twine-cutters.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. An apparatus for the manufacture of bags comprising mechanism for supplying the material, mechanism for feeding the material intermittently, a cutting mechanism actuated during the intermission of the advance of the material, for severing the material into lengths, means for folding the severed material, a sewing-machine and means for transferring the folded material thereto, a second transferring mechanism operating at right angles with the first-namedtransferring means, a second sewing-machine for closing the open side of the bag, thread-cutting appliances for severing the thread after the bag passes each sewing-machine, and a single power device connected with the feeding devices, the severing mechanism, the folding devices, and the thread-cutting appliances.

2. In a bag-making machine,means for sup plying the fabric continuously, means including a reciprocating rack and a pawl-andratchet mechanism by which the material is advanced and stopped intermittently, a mechanism for cutting the material into lengths suitable for the bags to be made, means for adjusting the movement of the rack whereby the advance of the material is varied to suit the size of the bag to be made, and means connected to the rack for operating the cutting mechanism.

3. In a bag-making machine,the combination of means for supplying material continuously, a feed mechanism, means for cutting the material into lengths at each intermission of its forward movement, a reciprocating slide mechanism for operating the feed mechanism,

and means connected to said slide mechanism for operating the cutting mechanism.

4. In a bag-making machine, the combination of mechanism for supplying the material, a feed mechanism for the material, means 'for actuating the feed mechanism, a cutting mechanism .for severing the material into lengths, a folding mechanism for the severed portions, a transfer mechanism for the folded portions, stitch-forming mechanism, a horizontally-reciprocating slide mechanism and connections between the same and the cutting and folding mechanisms whereby the said cutting and folding mechanismsare operated by the single reciprocating slide mechanism.

5. The combination of mechanism for supplying the material, a feed mechanism including rollers,a reciprocating rack and pawland-ratchet devices, means for regulating the movement of the rack and the consequent advance of the fabric, a cutting mechanism, a horizontal slide mechanism movable with said rack, and connections between said cutting mechanism and the slide mechanism whereby the former is operated by the latter at each intermission of the forward movement of the material. I

6. In a bag-making machine, feed-rollers between which the fabric passes, a reciprocating rack at each side of the machine and coacting devices by which the rollers are intermittently turned to advance the fabric, other feed-rollers'between which the material passes, a transverselyoperating cutter, sliderods connected with said racks and means connecting said rods with the cutter and operating the latter on the return movement of the rack whereby the fabric is severed into lengths at each intermission of the forward movement of the fabric.

7. In a bag-making machine, mechanism for advancing the fabric intermittently,a cutting mechanism, a horizontal slide mechanism operated in unison with the mechanism .for advancing the fabric, and connections in- 8. In abag-making machine,means for sup-.

plying the material, mechanism by which the fabric is intermittently advanced, a horizontal slide-rod at each side of the machine and operating in unison with the means for advancing the fabric, a cutting mechanism, a

mechanisms are operated by a'single slide mechanism.

9. In a bag-making machine, mechanism by which the fabric is intermittently advanced, a double set of rollers between which the fabric passes, a cutting device intermediate the l .twosets of rollers, and mechanism consisting I and thereby operate said shear-blade by which the shears are actuated to sever the of areciprocating rod, a fulcrumed lever and an inclined platecarried by said rod adapted to engage said lever whereby the cutting device is actuated.

rollers over which said carrying-belt passes whereby its direction is changed to take it temporarily out of the line of travel of the fabric whereby the latter alone is presented between the rollers and a shears between the blades of which the fabric passes at this interval, and mechanism including a slide-rod at each side of the machine, a fulcrumed arm at each end of the movable shear-blade, and

devices on the slide-rods to engage said arms fabric. I

ll. Ina bag-making machine, mechanism by which the bag fabric is advanced intermittentlythrough the machine, a supportingi belt upon which the fabric rests, two pairs of rollers between which the fabric passes and by which it is advanced, a direction-roller out I of the line ofsaid rollers over which the car- I Irying-belt passes while the fabric passes in a straight line between the two rollers, a stationary, and a movable shear-blade between which the fabric passesin moving from one .pairof rollers to the other, aslidable rod or rods movable inunison with the movement of the fabric-advancing mechanism, afulcrumed lever connecting with the movable bladeof the shears, an incline carried by the slidingrodadapted toengage the lever on the return movement of the rod and while the fabric is stationary to actuate the shear-blade and severth e fabric, and a spring by which the movable blade is separated from its felj low to allow a further forward movement of the fabric. I

I for actuating the cutterduring the intermission of the forward movement of the fabric I I whereby the fabric is separated into lengths,

rollers between which the separated pieces pass and by which they are advanced from the cutter, fo1ding-rollers situated below the line of movement of the fabric, a verticallyreciprocating blade by which the severed section is introduced between the rollers and the fabric is folded to the form of a bag, and connections between said slide-rod and the folding-blade whereby the latter is operated.

13. In a bag-making machine, mechanism for feeding the fabric, and moving it intermittently through the machine, mechanism for severing the fabric into lengths, a mechanism for folding the severed sections, consisting of rollers revoluble in contact beneath the horizontal line of travel of the fabric, fulcru med levers, a folding-blade carried thereby and adapted to press the fold of the fabric section between the folding-rollers, a longitudinally-reciprocating rod, said rod having an inclined surface engaging the lever which carries the folder-blade and operating it during the intermission of the forward movement of the fabric. I

14. In a bag-making machine, mechanism for supplying a fabric and advancing it intermittently, mechanism for severing the fabric into lengths sufficient for bags, rollers between which the severed fabric is advanced, a folding device consisting of contact-rollers situated below the line of travel of the fab ric, a blade by which the bight of the fabric is pressed down between the rollers, and fulermned levers by which the folding-blade is carried, reciprocating rods and inclines carried respectively thereby adapted to engage the levers and actuate the folder during their backward reciprocation, other fulcrumed levers connected with the blade-actuating levers, said second levers carrying the journalboxes of one of the feed-rollers,and movable in unison with the first movement of the folderso as to raise said roller and release the pressure upon the fabric whereby the latter is left freeto be moved bythe folder.

15. In abag-making machine, mechanisms for supplying the fabric, advancing it intermittently and severing itintolengths,a folder consisting of a double set of contact-rollers,

and a vertically-movable blade between the two sets of rollers and by which the severed sections of the fabric are pressed between lIO 16. In a bag-making machine, mechanisms for advancing the fabric, cutting it into lengths and folding the severed lengths centrally so as to bring the edges together, a single horizontally-reciprocating mechanism, connections between the same and the cutting mechanism, and other connections between said reciprocating mechanism and the folding mechanism, a carrying-belt and tapes between which the folded fabric is delivered I and returned to its original plane of travel,

a-sewing-machine disposed with. relation to the line of travel of the folded fabric so that one end of the fabric passes through the machine and 'is sewed together.

17. In a bag-making machine, mechanisms for supplying the fabric continuously and advancingit intermittently, mechanism for sev ering the fabric into lengths to form bags, mechanism whereby the fabric is centrally folded to bring the edges together, a sewingmachine through which one end of the folded section is passed and sewed, a thread-cutter, feed-rollers between which the bag-section is received after leaving the thread-cutter, a stop against which the bag is delivered therefrom,atransversely-rotating roller and means for raising it while the bag is being advanced, and afterward depressing it so as to change the direction of motion of the bag, a second sewing-machine through which the edges of the bag are passed and sewed, and a device for cutting the thread before the bag is delivered from the machine.

18. In a machine for making bags, mechanisms for supplying the fabric continuously and advancing it intermittently, mechanism for severing it into lengths for folding it and sewing the end of the folded section, mechanism for changing the direction of motion of the bag at right angles with its first movement, a second sewing mechanism through which the unfinished folded edges are passed tocomplete the bag,and thread-cutters whereby the thread of each sewing-machine is cut 1 after the bagle'aves it, said cutters being actuated in the intervals of the forward movement of the fabric.

19. In a bag-sewing machine, mechanisms for cutting, folding and sewing. the bag, a thread-cutting mechanism, longitudinallyreciprocating rods one at each side of the machine, inclined blocks or plates carred by said rods, and operative connections between the cutting mechanism, the foldingmechanism and the thread-cutting mechanism operated .by said blocks'or plates.

20. In a bag-making machine, a mechanism for advancing the fabric intermittently, and mechanism for cutting it into lengths, and for folding said lengths centrally to bring the edges together, a sewing-machine through which one end of the folded section ispassed and sewed, a thread-cutter acting after the bag has passed through the machine, a stop against which a partially-finished bag is delivered, a roller having is ends journaled in lever-arms, mechanism consisting of slidable rods with inclined blocks or plates adapted to engage the roll-carrying lever-arms whereby the roller is raised to allow the edge of the bag to pass beneath it from the first sewingmachine, and depressed so as to advance the bag at right angles with its former line of travel, and a second sewing-machine through which the unfinished edge of the bagis passed by said movement.

21. The combination in a bag-making ma? chine of mechanism by which a sheet of material is intermittently advanced; a cutter transverse to the lineof movementof the material; means for actuating .said cutter to sever the material during the intermission of the forward movement; a folder transverse to the line of travel; means by which severed blanks are advanced to the folder; means for actuating the folder; and means for sewing superposed edges of the folded blank.

22. The combination in a bag-making machine of mechanism including feed-rolls and mechanism by which a sheet of material is intermittently advanced, a cutter transverse to the line of movement and means by which the cutter is moved to sever the material during the intermission of the forward movement, a folder transverse to the line of travel, means by which the severed material is advanced beneath the folder, means by which the folder is reciprocated and means for uniting superposed edges of the folded blank.

23. The combination in a bag-making machine of mechanism including feed-rolls; a transversely-located cutter, and means for operating the same; a transversely-located folder succeeding the cutter, and means for operating the folder; means by which a sheet of material is intermittently advanced, and severed; means by which the severed section is advanced and arrested beneath the folder; continuously-traveling belts to. which the folded material is delivered; and sewing mechanisms to which the belts transmit the folded material, to unite superposed edges of the folded material.

24. An apparatus for the manufacture of bags, consisting of mechanism by which a sheet of material is intermittently advanced, a transversely-disposed cutter and mechanism actuating it while the material is at rest, a transversely-disposed folding-blade, means for intermittently advancing the severed material until its center is beneath the folder, means for subsequently reciprocating the folder, a continuously-traveling carrier to which the folded material is delivered, and sewing-machines locatedin the path of its travel whereby the bottom and open side are successively sewed.

25. In a bag-sewing machine the combination of feed-rolls and mechanism by which a sheet of material is intermittently advanced, a cutting mechanism next succeeding the feed mechanism and severing a portion of the fabric while the latter still remains in an unfolded condition; and a folding mechanism next succeeding the cutting devices and having a folding-blade arranged transverse to the line of movement of the material, for folding the severed blank across its shortest diameter and sewing mechanism for uniting the superposed edges of the folded material.

26. In a bag-making machine the combination of means for intermittently advancing a

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