US2071244A - Bag making and filling machine - Google Patents

Description

Feb. 16, 1937; G. WILLIAMS `12,071,244

BAG MAKING AND FILLING MACHINE 7 Sheets-Sheetl -1 ...nmuu n, n c l l .y ...wm /lmll Feb. 16, 1937. v. c;T w|| L|AMs\ BAG MAKING ANDKFILLING MACHINE Filed Feb. 8, 1934 '7 Sheets-Sheet 2 Feb. 16, 1937.

V. G. WILLIAMS BAG MAKING AND FILLING MACHINE Filed Feb. 8, 1934 7 Sheets-Sheet 5 mwN-rma Feb. 16, 1937. v. G. WILLIAMS BAG MAKING AND FILLING MACHINE 7 sheets-sheet .4

Filed Feb. 8, 1934 Feb. 16, 1937. v. G. WILLIAMS BAG MAKING AND FILLING MACHINE Filed Feb. 8, 1934 7 Sheets-Sheet 5 INVENT DE Feb. 16, 1937. v. G. WILLIAMS 25071344 BAG MAKING' AND FILLING MfAcHNE Filedv Feb. 8. 1934 7 Sheets-Sheet 6 INVENI DE .AT'IT Byfmyyy@ Feb. 16, 1937'.V v. G. WILLIAMS 2,071,244

BAG` MAKING AND FILLING MACHINE Filed Feb. 8, 1934 7 Sheets-'Sheet 7 Hin ,Il m f "mi". Ill" Ilm.

. il l a El- 5.25.

Ihn Il mvEN-ma PF1-TY Patented Feb. 1e, .1937 l 2,0?L244 narran stares BAG MAKING AND WELDING MACHEN Victor G. Williams, Toronto, ntario, Canada, assigner to Delaniere and Williams Limited, Toronto, Ontario, Canada Application February 8, i934, Serial No. lilild 37 Claims. (ill. 22S- 53) This invention relates to machines for making out of position for engagement by the rst of and filling bags and more particularly to mathe two surging machines, are now moved again chines' of this type used for packaging tea in to position the bag sections Acarried thereby for fabric bags having tags attached thereto and my eng-agement with the second of the said surging' 5 object is to devise simple apparatus of this charmachines. The stitching between the tags and 5 acter in which the speed4 of production is inthe bag sections adjacent thereto is then out, creased while the speed of the machine is reduced the grippers last thrown out. of action moved to a minimum, in which the desired quantity of into alnement with those acted on by the second tea will be supplied for each bag and deposited surging machine and then the grippers are turned therein, and in which a tag is attached to each 90, a bag extractor engages the bag sections. y) bag at a predetermined distance therefrom Withthe grippers are then opened and the extractor out varying the rate of speed of the machine discharges the nished bags on to a conveyor. or that of the bag. The grippers remain opened until reaching the .I attain my object by feeding and simultaneposition in which their jaws are on `opposite l5 ously folding over the longitudinal edges of the sides of the nozzles aroundwhich the folded bag' jf, lead end of a roll of bag-making fabric so that making material is passed so that when the gripthe folded material passes on opposite sides of pers are closed, they will engage the material nozzles or pegs for forming bags. These nozzles and securely clamp it between their jaws. The are mounted to rotate externally of a conveyor nozzles are constantly rotated on a common axis Which Carries a plurality Of glplels, each being which is offset relative to the grippers andeach 20 adapted to receive a nozzle and the fabric sure nozzle is swlngable on a pivot so that it is mainreunding it. A 010th knife mOVng transversely t-ained substantially at right angles to the bagof and also longitudinally with the strip of making material and in alinement with a gripper fabric is adapted to cut the latter transverselyy while moving with it.

v2, while it is gripped by two of the grippers, to The constructions are hereinafter more iully 5 form bag SeCtiOnS- After each bag Section iS described and are illustrated in the accompanya formed, it is lled with tea directed thereinto ing drawings in which bythe nozzles which are'then withdrawn from Fig. l is a plan View of myirnachine;

yfthe bag section carried by the gripper which is Fig. 2 a side elevation thereof;

g@ subsequently tilted, if a horizontal feed be em- Fig. 3 a longitudinal section ci the hopper; 3@ ployed, and shaken or agitated land then moved Fig. l a plan View oi the cam 'ior positioning the pest a Sewing or surging machine which trims nozzles, some et' he latter being shown; and Sews the eind 0r muth 0f the bag Section. Fig. 5 cross-sectional detail o the machine The thread is then cut and the gripper is turned showing a side elevation ci the/cloth ignite in 90 and moved pest a SeCOnd Sewing mhne position to out the bag making material; 35 which trims and sews one side of the bag section. Fig. 6 a plan View oi the parts shown in Fig. This thread is cut andthe gripper is then turned 5, the bridge being omitted; 180 to bringthe, other side of the bag section Fig. i a cross-sectional detail showing a side into position for being trimmed and sewn by elevation ci a knife for cutting the'thread ben 40 either one of twosurging machines. tween a tag and the following bag section;

These machines sew or surge a side of the bag Fig. B a cross-sectional detail of the valve conn section by means of any suitable stitching such as trailed suction inlet ior drawing materi'althrough :chain stitching and tags are also fed and sewn to a nozzle into a bag section;

the chain stitches. To space the tags from their Fig. Q a horizontal section on 'the line @me in i5 bags, alternate grippers are moved to -a position Fig. 8; l@ in which the bag sections carried thereby Will Eig. i@ a cross-sectional detail of the machine not be engaged by the first of the Said two surgshowing the tag .feeding mechanism in side ele ing machines. The tags are sewn into the chain vation; y stitching at a maximum distancefrom their bag Fig. 11 a plan view of the mechanism shown in sections and the stitching is cut between the Fig. l0; 50

tags and the bag sections adjacent thereto. The Fig. 12 a' longitudinal SeCtOlal deiil OY! ein grippers carrying the tagged bags are then moved enlarged scale of the tag strip guide and parts to a position in which the bags will not be engaged associated therewith; e

by the second of the said two surging machines, Fig. 13 a horizontal section of the tag strip and the grippers which were originally moved guide showing the tag strip and its feeder; 55

Fig. 14 aplanviewonanenlargedscale ofa gripper frame showing the projections by which it is turned;

Fig.l5adetailinplanshowingthedrivebetween the sprocket shaft, the hopper shaft and the serrated wheel:

Fig. 16 an enlarged longitudinal section of the gripper frame showing the jaws opened by the jaw opening device;

Fig. 17 a detail in side elevation showing the bag making material being folded and advanced by the serrated wheel Fig. 18 a detail in side elevation of a thread knife;

Fig-19 a plan view of the parts shown in Fig. 18;

Fig. 20 a plan view of a iinished bag;

Fig. 21 a sectional detail of a push bar and its operating mechanimn;

Fig. 22 a sectional detail showing the mechanism for oscillating the axially movable shaft;

Fig. 23 a cross-sectional detail on the line 23-23 in Fig. 28

Fig. 24 a detail in side elevation of a modiiied form of feeding mechanism Eg. 25 a detail of the bag forming peg shown in Fig. 24;

Fig. 26 a detail of the cloth knife shown in Fig.

i'lg'. 27 a detail of the feeding mechanism oi' Fig. 24;

Fig. 28 a tic view of my machine having a further modification of the feeding mechanism; and

Fig. 29a detail showing the means for closing the grippers on the bag material and the nozzles.

In the drawings like numerals of reference indicate corresponding parts in the diiIerent iigures.

l is the frame which is suitably shaped to support the various parts of the machine and is provided with legs l. An endless carrier 2 preferably formed as a chain is supported intermediate its ends on a iiange 3l of a bridge 3 which is carried above the frame i by suitable supports. The chain carrier 2 meshes with sprocket wheels 3, 34 journalled at oppomte ends oi' the bridge 3, the wheel 3c being secured to a shaft 3' for driving the carrier. 0n the carrier 2 are pivotally mounted a plurality of grippers 4 so that they may be swung in a vertical plane and rotated in a horizontal plane (see Figs. l, 2, and 8). This is accomplished by providing certain of the chain links with laterally extending blocks on which gripper carrying arms 4 are pivoted at 4b to swing in a vertical plane. These arms are provided with upwardly extending nngers 4 adapted tobeengaged byrails l carried aroundtheperiphery of the bridge to determine the pomtion in averticalplaneofthegrippersasdesired. Y

Gripper Each gripper 4 includes a trame 4 (Figs. 16 and 8) which is journalled at 4i to rotate on its can-ying arm 4* at right angles to the pivot 4b thereof. The trame is provided with a plurality (preferably four) of radially directed projections 4f (see Pigs. 10 and 14) which are equidistantly spaced apart for engagement one by one with stationary pins l'il carried by brackets l mounted around the periphery of the bridge 3 so that as the gripper v= w: each of the brackets l it will be rotated a quarter turn on its pivot 4e (in a clockwise direction of rotation in Fig. 1 and anti-clockwise in Fig. 14) for a purpose herein- 'after described. Any suitable friction or clicking means may be employed to prevent the grippers from moving more than the desired quarterturn as they move post each bracket. Each frame 4l is provided with a passageway 4l which communicates with the space between the jaws 4h of the gripper (see Figs. 8, 10, and 16). These jaws are Yadapted when closed, to form a substantially impertorate pocket having its rear end communicating with the passageway 4 and its front end provided with an opening 411er a purpose hereinafter described. 'l'.'he bag making material is adapted, as hereinafter described to extend across the space between the jaws, project beyond the sides and front end thereof and be gripped between the said sides.

f 'Ihe opposed outer ends of each frame 4d are provided with open bearings or rounded surfaces 41 on which the top and bottom walls 4k o! a pair of jaws are pivoted. 'I'hese walls are formed of inserts made of springy material having their free ends rounded to t the surfaces 41. Each set of jaws is also pivotally connected with one another by means of a. pin 4l which extends transversely ofthe jaws across the iront or outer end of the passageway 4z and engages open bearings in the sides of the jaws. As the jaws are swung on their pivots 4j to close the jaws, the pin 4l is moved rearwardly relative to the pivots and when the pin moves beyond an imaginary center line through the pivots 45, the spring walls 4k snap the jaws closed. Similarly as the jaws are opened against the pressure of the spring walls 4k, the pin 4I is moved forwardly relatively to the pivots 4-i and when the pin is moved past the dead center of the said pivots, the jaws will remain open. These pivotal connections and spring Walls 4k thus form a snap over mechanism whereby the jaws of each set or pair may be closed by moving only one of the jaws towards its closed position and the jaws may be opened by moving the pin 4l'longitudinally of the frame (or the jaws) past the dead center of the pivots 4l.

Measuring and directing mechanism for the filling material The tea. or other material with which the bags are lled is can'ied in a hopper 8 secured to a shaft Ifwhich is driven by gearing I, from the sprocket shaft 3e (see Figs. 1, 3, and 15). In the bottom of the hopper are formed a plurality of holes in which are suitably secured izlbular chambers 8. 'Ihe tubular chambers 4C depend from the bottom of the hopper and are adapted to be telescopicallyiltted in holes, forming chambers 8d, which are formed in a ring le. By raising and lowering the ring le relative to the bot' tom of the hopper, it is obvious that the ca-.

pacities of the telescopic chambers lc, I4 will be varied. 'I'he ring is supported on a non-rotating disk 8f which is axially movable on the shaft l* and is provided with supporting lugs Il. Th lugs rest on shoulders formed on nuts I threaded on supports 8i. To enable the nuts Ih to be turned simultaneously, and thus move the disk I' and the ring I axially away from or towards the bottom of the hopper l, I provide each nut with sprocket teeth I1 and connect the sprockets by'means of a chain meshed with all of them.

The tea in the hopper drops into the chambers 8 and I, and the disk 8f (over which 'the ring le rotates) prevents the tea from spilling through the chambers until they reach a discharge openingllin thedisk. Thisopeningisclosableby a slide which moves in a slot in the upper surface of the disk so that vthe upper surface of the slide will be ush with the upper surface of the disk. To prevent the tea within the hopper above the measuring chambers from passing through the chambers as they come into register with the discharge-opening and to ensure all the contents of the measuring chamber in register with the discharge opening being discharged therethrough, I provide a scraper 8n which is held from rotation in the hopper just above the upper surface of the bottom thereof and provide this scraper with an air Vent tube 8 which extends upwardly above the upper end of the hopper to establish communication with the atmosphere and the chamber in register with the discharge opening.

Secured tothe hopper shaft 8a isl a spider 8p (see Figs. 3 and 4) on which tea receptacles 81, located below the telescopic chambers 8, 8d, are rotatably mounted so that each receptacle may be independently turned on its axis while it is being rotated by the spider around the axis thereof. The receptacles are spaced and timed to bring them substantially into alinement with the adjacent grippers 4. Each receptacle is provided with a funnel adapted to receive the contents of the chambers 8, 8d located above it, and is also provided with a nozzle 8r adapted to be received in the opening 41 of a gripper.

To aline the nozzles with the jaws of the gripper, I provide the receptacles with arms 8S having depending pins, at the free ends thereof, which project below the underside of the spider and carry anti-friction rollers for engagement with a cam 8t carried by a support 8U. This cam is so shaped that while the receptacles are travelling around with the spider, on that portion of its arc remote from the path of travel of the grippers 4, the nozzles are positioned ahead of their receptacles and are thus pointing toward the gripy pers as they move toward the path of the latter. As each nozzle nears the point of entering between the open jaws of a gripper, the cam is shaped to aline the nozzle with the gripper and to maintain it in alinement therewith until the jaws are closed around the nozzle. From this point until the nozzles are fully withdrawn from the jaws by the rotation of the receptacles away from the path of the grippers, the cam is cut away to permit the engagement of the sides of the openings 4i4 with the nozzles to maintain the latter in alinement with the jaws of the grippers. After the nozzles are withdrawn from the grippers, the cam 8 engages the rollers on the arms 8S and turns the receptacles on their own axes through an angle of nearly 180 so that the nozzles will be pointed toward the grippers as they again near the path thereof.

It is desirable to maintain a predetermined level of tea in the hopper 8 otherwise the quantities of tea in the rneasuringchambers 8, 8d are likely to vary. A 'tea spout ilv leading from a suitable source of supply has its discharge end directed4 into the hopper (see Figs. 3 and 1). A closure 8W for the discharge end of the spout is pivoted on any suitable part, such as the rod 8x for carrying the scraper iln and the air vent tube 8, to swing across the underside of the mouth of the spout Ilv and thus Aregulate the quantity of tea discharged therefrom. Thecentral portion of the bottom of the hopper is raised by means of a cylindrical hub 8S' which leaves an annular spacev for tea` above the measuring chambers. -The closure 8W extend-s across `the hub and its free end carries a plate Ilz-adapted to be engaged by thetea in the annular space; As the tea is revolved with the hopperit tends t move the plate with it and thus moves the closure to its position for closing the mouth of the spout. The closure is spring actuated to tend to holdit at least partly open so that the higher the level of the tea in the annular space, the greater the pressure against the plate to overcome the spring.

Bag material feeding and cutting mechanism The bag making material 9a is fed or advanced by a rotating serrated wheel ilb (see Figs. 1, 15, and 17) from a supply roll 9, which is journalled on an arm 9d pivoted on the frame I, tothe grippers 4. 'Ihe supply roll is axially adjustable relative to the serrated wheel so that vthe latter may be positioned substantially midway between the edges of the material 9 on the roll. A U- shaped folder 9 having its legs on opposite sides of the wheel 9b is adapted to fold the lead end of the strip of material, as it is -being advanced by the serrated wheel, so that the longitudinal edges of the strip lie on opposite sides of the wheel. The U-shaped folder is carried on an arm 91 which is mounted on the shaft 9g carrying the wheel 9b, and on this shaft is also mounted another arm carrying a rubber roller 9h which maintains the bag making material in engagement with the serrations on the periphery of the wheel.

The wheel 9b is constantly driven by chain and sprockets 9i from the gearing 8b (see Fig. 15) whereby the bag making material is creased longitudinally, folded transverselyand advanced sov that its doubled over edges pass on opposite sides of the nozzles 8f. A spreader 9i, located between vthe folder 9 and the point where the nozzles of the latter to facilitate the entrance of the nozzles therebetween. -As the nozzles move along with the strip of material they are positioned at substantially right angles thereto by the cam 8i, as hereinbefore described, and when the nozzles near the point where their open ends are adjacent the longitudinal crease in the strip of material, the jaws 4h of each gripper are closed to grip the strip material around the nozzle. The jaws of each gripper may be closed by one of them being engaged by or engaging any suitable means such as a stationary inclined face 4m, see Fig. 29.-

A cloth knife II (see Figs. and 6) is reciprocated transversely of the strip of bag making material 9a vbetween adjacent closed grippers 4 and is actuated to cut the strip, while moving longitudinally with it, to form bag sections 9. The knife comprises a fixed shear blade Il secured to a Aslide II which is mounted to reciprocate transversely of the machine in a guide I Id. The guide Ild is mounted on an axially movable shaft I2 which is timed to move at substantially the same rate of speed as that of the grippers 4.

On the fixed blade IIa Vis pivoted a movable blade IIb .which is normally positioned in spaced relationship to'the blade Il so that the blades pass on 'opposite sides og the folded strip of material as the slide 'II is moved outwardly. A cam I Ie secured to a rotating shaft I0 engages one arm of a bell crank Ilf pivoted on a bracket HH, the other armof the bell crank being confixed blade by a. bell crank IIi journalled on the axially movable shaft I2 and is actuated by a cam I I1 secured to the shaft I0. The arm of the bell crank II1 remote from the cam is provided with an adjustable tappet Ilk adapted to engage the underside of the movable blade to cause it to co-operate with the fixed blade to cut the bag making material. The bell crank IIi is mounted between two collars secured to the axially movable shaft I2 so that the bell crank, and thus the tappet, moves longitudinally of the machine with the knife blades to permit the cut to be made during the travel of the blade with the bag making material. Of course the length of the cam IIJ is such that the axially moving bell crank I I1 is always actuable thereby to operate the movable blade of the knife. After the bag material has been out, the knife blades are opened as hereinafter described, the slide is withdrawn by the cam IIe to move the blades from the path of the grippers 4, then the slide and blades are moved by the shaft I2 longitudinally of the machine in the direction opposite to the travel of the grippers and are next moved by the cam II outwardly again so that thev blades are positioned ahead of the next gripper. The blades then move with the bag material and the grippers, and are actuated again by the cam IIJ to cut the material so that each gripper carries a bag section 9. The movable blade is formed as a bell crank, one arm having a cutting edge and the other having a roller which, on the withdrawal movement of the blades after the bag making material has been out, is adapted to engage a stationary inclined face II1 to cause the cutting edge to move away fromv the cutting edge of the fixed blade. Any suitable means disposed on the pivot of the movable blade for frictionally engaging both blades is adapted to retain the movable blade as positioned by the face I Il or the tappet Ilk.

Filling mechanism After the bag sections are formed and before the nozzles 8f are withdrawn therefrom, the tea in the receptacles 81 is transferred from the latter to the bag sections (see Figs. 8, 9, and 1). This may be accomplished by employing suction means for drawing the tea from the receptacles through the nozzles into the bag sections. The inlet I3 -of the suction means is carried by the bridge 3 so that the passageways 4I oi the grippers 4 will be successively registered therewith as the gripa cylindrical casing I3l1 which communicates at opposite sides with the chamber I3h and the inlet openings I3f. The lead or pitch of the helical groove I3e equals` the distance between the grippersV 4 so that a portion of the groove is always in communication with those openings I3f that are in registerwith the passageway of a. gripper as the latter moves relative-to the inlet. The length of the inlet is such that, as one`v gripper nears the point where it will move out of engagement with the inlet, the groove will establish conimunication between the suction means and the following gripper until it too moves past the rear end of the inlet. As the bag making material 9 is porous, and the jaws 4i are substantially imperforate, all the tea in the receptacles 81 will be drawn into the bag sections as they are carried by the grippers 4 past the suction inlet ISE.

To facilitate the filling of the bag sections, the receptacles are vented opposite the nozzles whereby the rush of air beneath the tea in the receptacles will ensure all the contents thereof being drawn therefrom. Further, each gripper as it moves into register with the inlet I3 is slightly agitated by a spring rail Iid which is provided with one or more projections for engaging the finger 4c of each gripper.

The nozzle 8r is withdrawn from the gripper after the bag section carried thereby is filled. The finger 4 of this gripper then engages a cam rail I4 to rock the gripper carrying arm 4a on its pivot 4b so that the contents of the bag section will drop by gravity to the bottom of the bag seotion. To ensure this being accomplished, the rail I4 is provided with one or more projections for engaging the finger 4c as it moves along the rail to cause the tea in the bag section to be shaken to the bottom thereof. The rear end of the rail I4 is so directed that the gripper 4 will be lowered again to a substantially horizontal position.

Bag closing mechanism As the gripper continues its movement around the bridge 3, the mouth of the bag section 9 is simultaneously trimmed and sewn by a sewing or surging machine I5 which, of course. operates on the material of the bag section projecting beyond the mouth of the gripper jaws 4h (see Fig. 1). As this type of sewing machine which produces a continuous chain of locked stitches is well known in this art, it is not described nor shown in detail. To prevent the contents of the bag section from spilling during the sewing of the mouth thereof, the grippers 4 and the table of the sewing machine may be set at a slight angle to the horizontal.

The stitching between adjacent bag sections is cut by a thread knife I6 (see Figs. 18 and 19) which is moved upwardly into the path of the stitching, and is actuated to cut the thread while travelling longitudinally of the machine with the thread. The fixed 'lade IISn of the knife is secured to and the movable blade IED is pivoted on an arm Iic which is secured to the axially moving shaft I2. 'Ihe latter is also oscillated to rock the arm I6c upwardly so that the blades. which are normallyl open will pass on opposite sides of the stitching. 'I'he movable blade I6b is connected eccentric to its fulcrum by a link I 6d and ball joints with the frame I so that as the arm |6 and thus the fulcrum of the blade IISb moves upwardly, the cutting edge of this blade is swung into the path of the thread and into co-operation with the fixed blade to cut the thread. During the downward swinging movement of the arm, the blades are opened and when clear of the grippers 4 are moved longitudinally with the shaft I2 in a direction opposite that of the grippers for positioning the blades ahead of the next gripper. The bladesthen travel with the grippers and are actuated, as hereinbefore described. to cut the thread after the mouth of the next bag section is sewn.

The gripper frame 4d is turned one-quarter revolution, in a clockwise direction of rotation,

'on its pivot 4 by the engagement of the pin 'lEL on a `bracket 1 with a projection 4f on the frame as the gripper moves along the bridge 3. The jaws 4h are thus turned with each gripper frame, as it passes the bracket 1, to present an unsewn edge of the bag section carried thereby for closure by the sewing machine |1. To facilitate this turning movement, the gripper is preferably elevated slightly by a cam 1b out Vof the path of the other grippers. The camlb is secured to the flange 3 of the bridge and the carrying arm 4a of each gripper is provided with an adjustable regulator 411 adapted to engage the flange 3a to limit the downward movement of the gripper on its pivot 4b. The engagement of the regulator 4 with the cam 1b causesA the gripper as a whole to tilt on the pivot 4b while its frame is being turned-on the pivot 4e.

An unsewn side of the bag section 9 is now positioned by the gripper jaws 411 to be trimmed and sewn or surged by a sewing machine I5a which is the same as sewing machine i5. After this side of the bag section is sewn and trimmed, the thread is cut by a thread knife |66 which is identical with the previously described knife It and is carried on the oscillating and axially moving shaft l2.

' During the travel of the gripper 4 around the sprocket wheel 3d, the yframe 4d is turned onehalf revolution, in a clockwise direction of rotation, on its pivot 4. This is accomplished by providing two brackets 1, each having a pin 'ia for engaging a projection 4f on the frame. The engagement of a projection 4f with the rst of these two pins causes the frame to be turned one-quarter of a revolution which positions the closed folded over bottom of the bag section parallel with the carrier 2. As this edge does not require stitching, the frame is immediately turned again 'by the second of the said pins to position Ithe other side of the bag section to be trimmed and sewn by one of two sewing or surging machines I5", I5c which also attach tags I1 -to the bag sections.

` Tag attaching mechanism `To enable the tags I1 to be spaced a predetermined distance from their bag sections, alternate grippers 4 are moved to a position in which their bag sections will not be engaged by the machine I5b so that the distances between the bag sections sewn by this machine will be increased and thus thehereinbefore described continuous chain stitching between adjacent bag sections will be lengthenedl (see Figs. 1 and 2). The tags are sewn on to the ends of the chain stitching remote from their bag sections, thus the tag of each bag section is close to the following bagpsection and is subsequently separated therefrom by a thread knife I'Gf (see Fig. 1). The regulators 4 on alternate grippers 4 are engaged by a push bar I8 (see Fig. 2l) which is mounted to recipro. cate transversely of the bridge 3 onV the underside thereof and which is adapted to tilt the alternate grippers sulciently for their fingers 8 to engage the inside'edge of the entering end of a rail 6e. As the fingers travel along this entering end of the rail they are gradually lowered to a substantially'horizontal position so that their grippers are tilted to a substantially vertical position and are maintained in this position by the rail until they pass the surging machine Mib. The latter thusoperates `only on the bag sections carried by the other grippers which were not tilted bythe push bar I8. A. cam feb on a forward through the guide half-speed shaft 5 engages an anti-friction roller carried intermediate the ends of a lever I8c which has a pin and slot driving connection with the push bar to actuate it once for every two grippers which move past it.

To ensure the passage of the lead edges of the bag sections S (carried by the alternate grippers 4 which were not thrown out of action by the push bar I8) along the upper side of the table (not shown) of the surging machine I5", I provide a rotating disk IS having its periphery serrated for engaging and elevating the lead edges just before they reach the said table or a continuation thereof.

After each of the spaced apart bag sections has its open side trimmed and surged by the surging machine l5", a tag Il is fed beneath the usual presser foot of the said machine so that the needle thereof will pass through the tag and thus the latter will be sewn into the chain stitching (see Figs. 10 to 13). Preferably the tag l1 is onthe lead end of a strip of tags and is severed from the strip by the usual trimmer of the yniachine I5b which also trims the edge of the bag section.

The strip of tags is carried on a supply roll |19' and the lead end thereof is passed around a tensioning device Iib and around the curved rear end of a top plate I1c which is secured to a channel shaped guide I'ld and both plate and guide are secured to an arm |19. The latter is secured to a spindle i1x which is axially movable and rot'arily mounted in bearing blocks I'lg carried by the frame so that the upper end' of the arm I1e and thus the guide IId may be moved transversely of the machine and longitudinally thereof whereby the lead tag may be directed transversely of the bridge 3 into the path of the chain stitching land then longitudinally of the bridge past the needle and the trimmer ofthe surging machine |511 to attach the tag to the chain stitching and to sever the tag from the strip. These axial and rotary movements are imparted to the spindle I1r by a cam I1h`having high and low portions on its periphery and also on a side face thereof. This cam is secured to the half speed shaft 5 and engages both faces of a substantially 90 V groove in the periphery of a roller journalled on a cam arm I1i which is secured to the spindle, the laxis of the roller being substantially 45 to the axis of the cam. A

After the lead tag is severed from the strip, the cam arm |11, and thus the guide arm Ile, is moved transversely away from the bridge and during this movement the fresh lead tag is fed for attaching to the stitching just before the next bag section is surged. vThe sides of the tag strip are provided with a series of cut-out portions to reduce the width off the tags at the junction thereof and thus facilitate the severing of the lead tag and vto shape each tag so that it may simulate a packet of .tea in perspective. The forward' edges of the cut-out portions I1j on opposite sides of the strip are engaged'by correspondingly shaped shoulders I1k on a feeder I'Il formed of resilient material freely carried in the channel shaped guide I'Id beneath the strip of tags. The feeder is secured to a guide bar I1m which is slidably mounted in the upper end of the guide arm I1@` beneath the strip guide I11 and is provided with a pin I1n adapted to be received between the legs ITN, and, |10 of a fork secured to a stationary bracket i151.

The forked legs are directed longitudinally of 5'5 I1d to be positioned the bridge to prevent the guide bar Ill and the feeder I1 from movement transversely of the bridge so that the strip of tags is held from moving with the guide I'll1 while the latter is drawn away from the chain stitching whereby the fresh lead tag on the strip is fed forward relative to the guide. A spring nger Ill passes through an opening in the side of the guide i111 to frictionally engage a cut-out portion lli to prevent relative movement of the strip and its guide i111 while the latter is moved longitudinally of the machine in a direction opposite .that of the grippers, then transversely towards the grippers 4 and then longitudinally with the grippers. During the transverse movement of the guide towards the grippers, the strip guide Ild moves relative to the guide bar i111 and feeder i1 so that the latter is positioned behind the tag previously engaged thereby whereby the fresh4 lead tag of the strip will be fed forward on the next outward transverse movement of the guide.

Of course, the guide bar i'lmand feeder I1 move with the strip guide |111 when the spindle Hf is oscillated to move the guide longitudinally of the machine and this movement of the guide bar is permitted by the longitudinally directed fork |11. The outer leg of the latter is pivotally mounted at I'lr on the body of the fork and is releasably locked in operative position by a removable pin |15.

After each bag section 9 and the tag connected therewith at a distance therefrom passes the sewing machine |51, the short length of chain stitching between the tag and the following bag section is cut by the knife |61 (see Fig. '7) which operates in the same manner as the herinbefore described knives I6 and i6 but is actuated only once for every two operations of each of the said knives. The knife |61 is provided with a xed blade IS, a movable blade |61 and a link |611, the blades being carried on a lever i611 which is journalled intermediate its ends on the axially moving and oscillating shaft l2 between two collars secured thereto so that the lever moves axially with the shaft but does not oscillate with it. 'I'he end of the lever remote from the blades is providedrwith an anti-friction roller which engages a cam |61 secured to the halfspeed shaft 5. The width of the face of this cam is such that the roller may move axially oi' the cam without being disengaged therefrom.

After the thread is cut between the b ag s ections 9 operated on by the surging machine I 51 so that the tags l1 will be the greatest possible distance from their bag sections. the other bag sections which were positioned by the rail 6* reach the exit end thereof. 'I'his end is dared outwardly to control the lowering of the slippers by a cam 6 secured to the bridge 3. This cam engages the fingers 4 to gradually lower the grippers 4 into alinement with thoselgrippers 4 carrying the tagged bag sections. The last mentioned grippers are now raised by a push bar I8* which is identical to the push bar I8 except that it is timed to engage the regulators 41 which werev not engaged by the bar I l. The fingers 4 of the grippers 4 carrying the tagged and completely sewn bag sections are thus elevated sumciently to engage the inside edge of the entering endl of a rail i1 which is identical to the rail 8* and which is adapted to maintain these bag sections in a position in which they will not be engaged by a second surging or sewing machine |5. The latter is identical with the machine i 51 and is also provided with a rotating disk I9. A second tag feeding device comprising all the parts Ill to ils of the hereinbefore described tagging device is positioned adjacent the surging machine |5 for operation therewith in the same manner as the iirst tag feeding device co-operates with the surging machine i51 so that the alternate bag sections missed by the machine 51 will have their third sides surged and the tags l1 attached thereto by the surging machine 15. The continuous chain stitching produced by the machine 15 is cut by a thread knife Iiig which is identical in every respect to the hereinbefore described knife |61 so that the bag sections surged and tagged by the two sets of devices i51, ill to 11, and 5. l1* to HS, will be identical.

The grippers 4 carrying the rst tagged bag sections 9 which were held by the rail E1 out of alinement with the stitching produced by the surging machine 15 now reach the exit end of the rail where they are lowered .until their regulators 41 rest against the edge of the bridge flange 3a or a wear strip secured thereto.

All the grippers 4 are thus in a substantially horizontal position .so that the projections 41 on the frames 411 will. engage the pin 'la of a fourth bracket 'I to cause the frames to be turned another quarter-revolution ontheir pivots 4. This final partial turn of each frame returns it to its initial position with the longitudinal center line of the jaws 411 at right angles to the pivot 41 of the carrying arm 4, and with the pivot pin 41 of the jaws in front of the passageway 4S and behind the mouth opening 41.

Bag discharging mechanism centers of the pivots 4-1 whereby the jaws are opened. To ensure the dischargeof the tea bag v from the openedvjaws, I may provide a nozzle which may be connected with the air discharge outlet of the suction fan I3 and be located behind the passageway 4 for directing a blast of air therethrough. Preferably the tea bags will be removed from the opened jaws of the grippers by a device 22 having a pair of clamping members 22, 221 adapted to grip or clamp the bags one by one before the jaws are opened, swing them clear of the grippers 4 after the jaws thereof are opened and deposit them on to the conveyor 20. The clamping member 22 is secured to a spindle 22 which is suitably journalled to oscillate and on which is keyed the member 22" so that it will turn with the spindle and move axially relative thereto.

To turn the spindle 22 on its axis-the hub of the ilxed member 22* may be provided with a projection 22d which extends into the path of the gripper frames 4d so that it would be engaged thereby. The movable clamping member 221 is actuated, to co-operate with the fixed member 22 to clamp a tea bag between them, by means of an arm 22 having one end pivoted at 221 and the other end engaged with the underside of the hub of the movable member 221. A roller carried intermediate the ends of the arm 22 engages a 'cam 221 having high and low portions whereby the arm and thus the movable clamping member is alternately raised and lowered to clamp and release a tea bag.

When the gripper frame 4d which is engaging the projection 22d moves out of the path thereof, a spring returns the spindle 22c and thus the projection to its initial position in which the projection will engage the next frame 4d. When this occurs the high portion of the cam 22g moves the arm 22e and thus the movable member 22? to clamp the tea bag lying in the closed jaws 4h of the gripper frame. As the frame continues its movement the jaws 4h are opened and the clamping members ,are swung by the frame to swing the tea bag clear of the jaws 4h. The low portion of the cam engages the roller on the arm to permit a spring 22h to open the clamping members just b'efore the projection disengages the gripper frame so that the tea bag is released before the members return for a fresh bag.

The cam 22 may be secured to the conveyor drive spindle. Y

A V-shaped switch arm 23a, of a suitable safetyswitch connected in the circuit of the motor for driving the machine, is adapted to be engaged by the jaws 4h to stop the machine if the jaws be closed when they pass the switch arm. Thelatter is located ahead o-f the mechanism for advancing the bag making material to ensure the jaws being open to receive the folded material.

Driving mechanismf A drive shaft 24, which is driven by the motor in any suitable manner, is arranged transversely of the machine and drives, by means ofworm gearing I, the shaft IIl which in turn is connected by one to two gearing 5a with the half speed shaft 5. The cylindrical valve I3@i in the suction inlet I3a is driven by a chain I3i and sprockets having two to one gear ratio from the shaft5. The sprocket shaft 3e at the hopper end of the machine is driven by worm gearing 3f from the shaft I0 which also drives the conveyor 2li through the bevel gearing 20a. The crank disk 2|b for actuating the jaw opening device 2| is driven from the conveyor roller spindle adjacent thereto.

The axially moving and oscillating shaftl I2 is axially moved by a cam I2a secured to the shaft I0. periphery adapted to receive an anti-friction roller carried by a lever I2b which extends upwardly through an opening in the bridge 3 and is fulcrumed at I2c above the latter. 'Intermediate the fulcrum and the anti-friction roller, the lever carries another anti-friction roller which engages the adjacent sides of two spaced collars I2d secured to the shaft I2 (see Figs. 2 and 22). The shaft I2 is oscillated by an eccentric I2e secured to the shaft I0 and engaging the bifurcated ends of a yoke or fork I2f secured to the a shaft I2 (see Fig. 18).

The surging machines I5, side of the machine are driven by spiral gears in casings ld from a shaft I 5e driven by bevel gears |51 from the drive shaft 24. The surging machines I5 machine are similarly driven by another shaft I5e which is driven by bevel gears I5t from the drive shaft. Each surging machine is detachably mounted on a support I5*z and its drive connection is also detachable and self alining so that a surging machine may be readily removed and placed in position again. The rotating disks I9 are driven by pulleys and belts from the second mentioned shaft Ie.

I5 located on one This cam has an endless cam groove in its and I5c at the other side of the Any suitable mechanism such as suction means and spouts (not shown) may be employed to draw the trimmings of the bag sections away from the surging machines. It will be understood that all levers and arms which engage cams will be maintained by suitable means in engagement therewith.

In Figs. 24 to 27 is shown a modified mechanism for lling the bag sections by gravity. When this mechanism is employed, the gripper arms 4a are swung on their horizontal pivots 4b after the jaws 4h have been opened so that the latter are directed upwardly. The bag-making material is fed as hereinbefore described to th`e open jaws 411 except in this case the feeding mechanism is turned so that the axis of the supply roll 9 is horizontal and the doubled over edges of the bagmaking material passes on opposite sides of a bag form such as a peg 2liil which is carried on an arm pivotally mounted on a reciprocating slide 30. This.slide is mounted on to-p of the bridge 3 and may be connected with the axially movable shaft I2 in any suitable manner so that the peg 28a will travel along.y with each gripper 4 until the jaws 4h have been closed to grip the bag-making material around the peg. rI'he latter is then raised, by a rod 28h which may be actuated by a cam on the shaft lil, to lift the peg clear of the grippers so that it may be returned to its initial lposition for insertion between the open jaws of the next gripper. .I have found that the bag sections will remain open, after the withdrawal of the peg.

The slide 30 also carries a cloth knife 3| which performs the same operation as that accomplished by the hereinbefore described cloth knife I I In this case the blades of the knife are moved vertically on a pivoted arm 3| into and out of the path of the folded strip of. bag-making material. bag sections the latter are filled by gravity from a stationary hopper 28 having one or more measuring chambers 28 in the bottom thereof. The upper and lower ends of the chamber or chambers are alternately opened and closed by a pair of cut-olf slides 28d, 28e having openings therethrough adapted to be registered alternately with the opposite ends of a chamber.

The lower slide 28e is provided with a spout 28f for each opening therein and each spout communicates with a nozzle 28r which is pivotally mounted on the reciprocating slide 3@ so that it may be inserted in the mouth of al bag section and move along with it while the bag section is being filled.' Itwill be understood that while the peg 28a is being used to form a bag section, the nozzle 2lir will be filling a previously formed bag section.

The cut-off slides 28d and 28e'are connected in any suitable manner with the reciprocating slide 30 so that, as the latter travels ina direction opposite that of the grippers 4, the lower slide 28e will`be moved to close the underside 'of the chamber 28c and at the same time the upper slide 28d will be moved to establish com- After the bag-making material is cut into the spout 28t and through the nozzle 281' which has been lowered during the forward movement of the slides to direct the tea into'a bag sec-v tion. 'I'he nozzle is raised at the end of this forward stroke so that it will clear the grippers on its return stroke.

Before the mouths of the lled bagsections are sewn and trimmed by the sewing machine l5 they are passed between a pair of rotating rollers 32 which close them. If it is desired to fill more than one bag section at a time; the cut-oil' slides 28d and 28e will be returned ata rate of speed to permit the corresponding number of grippers to be positioned beneath them before the slides are moved with the grippers.

In Figs. 28 and 23 is shown a modified arrangement of the parts of the machine and a further modication of the filling mechanism. In this case the hopper 38 is carried concentric to the shaft 3 for driving the carrier 2 and the telescopic measuring chambers 38 are located beneath the hopper and are driven by the said shaft. The chambers are filled through an arcuate opening 38'l formed in the bottom of the hopper at the side thereof remote from th'e side above the grippers 4 as they pass around the outside of the sprocket wheel 3c. An arcuate scraper 38h lies beneath the opening 38B and in contact with the underside of the measuring chambers to prevent the material in the hopper from dropping through the chambersuntil the latter are positioned above the bag sections carried by the grippers. Nozzles 38, which are pivotally mounted on a hub secured to the shaft 3e so that the nozzles rotate with the chamber and the grippers around an end of the machine, are lowered into the open bag sections as the latter move into position beneath the chambers at one side of the machine. The nozzles thus direct the tea into the bag sections from the chambers remote from the scraper 38h. As the chambers travel around beneath the hopper, which in this case is stationary, the nozzles are raised to clear the bag sections and the grippers before the latter move out of the circular path of the nozzles at the other side of the machine. When this type of hopper is employed, it is necessary to mount the supply roll 9 along the side of the machine between the second tagging device I 5c and the point where the carrier 2 first engages the sprocket 3, and to locate a bag form 38, and a cloth knife 4l between the supply roll and the said point. The finished bags would thus be discharged from the grippers at a point along the side of the machine. The bag form 38n may be the oscillatable and reciprocable peg 28 in which case the knife 4| would be identical to the knife 3l.

What I claim as my invention is':

1. A packaging machine comprising means for advancing a plurality of separate bags; two devices for attaching tags to the bags, the said.

means including provisions for advancing certain bags only to one device and for advancing only the other bags to the other' device; and means for operating the tag attaching devices simultaneously.

2. A packaging machine comprising means for advancing bags; two devices for attaching tags to the bags, one device being adapted to attach tags to certain bags and the other device being adapted to attach tags to the other bags; means for moving certain bags to a position in which they will not be engaged by the 'rst' of the said tag attaching devices; and means for moving the tagged bags to a position in which they will not be engaged by the second of the said tag attaching devices and for moving the untagged bags into position for engagement by the said second tag attaching device.

3. A packaging machine comprising means for advancing a plurality of separate bag sections each having an open side; two devices for sewing together the open sides of the bag sections and for attaching tags to a continuation of the sewing beyond the edges of the said bag sections, one device being adapted to sew the open sides of certain bag sections and to attach tag's to a continuation of the sewing beyond the edges of the said bag sections, the other device being adapted to sew the open sides of the other bag sections and to attach tags to a continuation of the sewing beyond the edgesof the last mentioned bag sections, the said means including provisions for advancing said certain bags to the first device and the other bags to the second device; and means for operating the said two devices simultaneously.

4. A packaging machine comprising two devices arranged in spaced relationship longitudinally of the machine for forming continuous stitchings;

.means for advancing bag sections having open sides past the said devices; means for moving certain bag sections out of alinement of the stitching produced by the rst of the two devices; means for feeding tags to be attached to the stitching passed through the other bag sections at points remote therefrom; means for cutting the last mentioned stitching between the tags and the bag sections closest thereto; means for moving the tagged bag sections out of alinement of the stitching produced by the second of the said devices and for moving the untagged bag sections into position for being stitched by the said second device; means for feeding tags to be attached to the stitching passed through the last mentioned bag sections at points remote therefrom; and means for cutting the last mentioned .stitching between the tags and the bag sections vclosest thereto.

5. A packaging machine comprising a plurality l of nozzles; means for advancing a strip of bag engaging portions of the strip around the nozzles; means `for cutting the strip transversely between two grippers toform bag sections carried by the grippers; and means for feeding material successively into the bag sections through the nozzles.

6. A packaging machine comprising a gripper for carrying a porous container having an open mouth, the gripper having a passage therethrough; a nozzle adapted to be received in the open mouth of the container and in the outer end of the passage; and means co-operating with the opposite end of the passage to create suction therein and in the nozzle.

7. A packaging machine comprising a constantly moving gripper for. carrying a porous container having an open mouth, the gripper having a passage therethrough; a constantly moving nozzle adapted to be received in the open mouth of the container and in the outer end of the passage.; and suction means including a member having a moving inlet adapted to travel with the gripper substantially in register with the end of the passage opposite the nozzle.:

8. A packaging machine comprising a constantly moving gripper for carrying a porous container having an open mouth. the gripper having a passage therethrough; a constantly moving nozzle adapted to be received in the open mouth of the container and in the outer end of the passage; a suction box; a member mounted in the box and having a moving inlet communicating with the interior of the box, the inlet being adapted to travel with the gripper substantially in register with the end of the passage opposite the nozzle.

9. A packaging machine comprising a plurality of nozzles rotating about a common axis and each being adapted to swing individually; means for advancing a strip of bag making material doubled over on itself to pass on opposite sides of the nozzles; means for swinging the nozzles so that they will be positioned substantially at right angles to the bag material as they approach it, and grippers for engaging portions of the strip around the nozzles.

10. A packaging machine comprising a gripper for carrying a container comprising a frame having a passage therethrough; a pair of jaws having a pivotal connection with one another and being pivoted on the frame, the said pivotal connection being shiftable relative to the pivots on the frame to hold the jaws open or closed; and means adapted to enter the passage and actuate the said pivotal connection to open the jaws.

1l. A packaging machine comprising a supply roll of bag making material; a rotatable serrated wheel positioned substantially midway between the edges of the material on the roll for advancing the material; means for folding the material so that its edges lie on opposite sides of the wheel; and means for cutting the material transversely thereof to form bag sections.

12. A packaging machine comprising means for advancing a strip of bag making material doubled over on itself; means for cutting the material transversely to its longitudinal edges to form bag sections, the said cutting means including a pair of blades; means for moving the blades transversely of the doubled strip on opposite sides thereof; means for moving the blades longitudinally of the machine in the direction of travel of the strip and at substantially the same speed as the latter; and means foractuating the blades to co-operate with one another to cut the strip while the blades are moving with it.

13. A packaging machine comprising a plurrality of grippers, means for advancing the grippers, each gripperV having a pairgof opened jaws; means for advancing a strip of bag making material doubled over on itself into the path of the opened jaws; means for closing the jaws on the material; means for cutting the material transversely of its longitudinal edges between two grippers to form bag sections; and means for filling the individual bag sections carried by the grippers.

14. A packaging machine comprising means for advancing bag sections having open sides; apparatus for sewing or surging the open sides, the said apparatus being adapted to produce a continuous stitching and being provided with a knife for trimming the sides of the bag sections; and means for feeding at points remote therefrom, the tags being in a strip and being fed one by one into the stitching and moved with it past the trimming knife to sever the lead tag from the strip.

tags to be attached to' Athe stitching passed through the bag sections with the strip of tags; means 15. A packaging machine comprising means for advancing a gripper for carrying an unsewn bag section having an open mouth; means for filling the bag section through the mouth thereof;

' means for agitating the bag section while it is beingv filled; and means for sewing the mouth and sides of the bag section.

16. A packaging machine comprising means for advancing a strip of bag making material doubled over on itself; a bag form adapted to be passed between the doubled over portions of the bag making material; grippers for engaging portions of the strip around the form; and means for cutting the strip transversely between two of the said grippers to form bag sections carried by the grippers.

17. In a machine of the class described, the combination of means for conveying a series of bag sections; means for displacing alternate bag sections to thus form two.series ofspacedbag sections; separate sewing means for operating on the bag sections of the two series; and means forpositioning tags in the spaces between the bag sections of each series for operation thereon by the respective sewing means.

18. A packaging machine including a device vancing a container having an open side past the said device; an arm movablei transversely and longitudinally of the inachinef:E a tag guide carried by the arm; means for moving thearm and thus the guide inwardly towards the stitching to direct the lead tag of a strip of tags carried by the guide into the path of the stitching, the said means being adapted to move the arm and thus the guide and strip of tags longitudinally of the machine relative to the device so that the lead tag will be attached to the stitchingfthe device having trimming means for cutting off the lead tag during the movement thereof longitudinally of the machine; and means for feeding a fresh lead tag through the guide on its outward movement by the first mentioned means away from the path of the stitching.

20. A packaging machine including a' device for forming continuous stitches; means for advancing a container having an open side past the said device; an arm movable transversely and longitudinally of themachine; a tag guide carried by the arm; means for actuating the arm to move the guide inwardly towards the stitching, longitudinallypast the device in the direction of travel of the container, outwardly away from the stitching, and then longitudinally in a direction opposite to that of the container, the inward movement of the guide being adapted to direct the lead tag of a strip of tags carried by the guide into the path of the stitching, the first longitudinal movement of the 'guide being adapted to cause the lead tag vto be attached to the stitching, the device having a knife for cutting off the lead tag during the first mentioned longitudinal movement of the guide; a feeder sli'dably vmounted in the guide for engagement for holding the feeder stationary during the inward and outward movements of the guide and for permitting the feeder to move longitudinally with the guide; and a finger carried by the guide for frictionally engaging the strip of tags to move the strip with the guide relative to the feeder on the inward movement of the guide, the feeder being adapted to feed the fresh lead tag forward relative to the guide and nger on the outward movement of the guide.

21. A gripper for carrying a container including a plvoted arm adapted to swing in a vertical plane; a frame rotatably mounted on the arm; means tending to limit each turning movement of the frame to a predetermined portion of a revolution thereof; a pair of movable jaws carried by the frame for engaging the container; and means for retaining the jaws in their open or closed positions.

22. A packaging machine comprising means for advancing a strip of bag making material doubled over on itself; a bag form adapted to be passed between the doubled over portions of the bag making material; grippers for engaging portions of the strip around the form; means for cutting the strip transversely between two of the said grippers to form bagsections carried by the grippers; means for filling the bag sections while being carried by the grippers; means for sewing the mouths of the bag sections, each gripper being rotatably mounted to present different sides of a bag section to the outside of the machine; means for -turning the grippers one by one; means for sewing a side of each bag section; means for turning the grippers to position the other unsewn side of each bag section to be sewn; means for sewing the last mentioned sides of the bag sections; and means for driving the first mentioned means and the grippers continuously at a constant rate of speed.

23. A packaging machine comprising means for advancing a strip oi bag making material doubled over on itself; a bag form adapted to be passed between the doubled over portions of the bag making material; grippers for engaging portions of the strip aroundthe form; means for cutting the strip transversely between two of the said grippers to form bag sections carried by the grippers; means for filling the bag sections while being carried by the grippers; means for sewing the mouths of the bag sections, each gripper being rotatably mounted to present different sides of a bag section to the outside of the machine; means for turning the grippers one-by one; means for sewing a side of each bag section; means for turning the grippers to position the other unsewn side of each bag section to be sewn; two separate means for sewing the last mentioned sides ofthe bag sections and for' attaching tags thereto, means for moving certain grippers to a position in which their bag sections will not be engaged by the rst of the said two separate means; and means for moving the other grippers to a position in which their tagged bag sections will not be engaged by the second of the said two separate means and for moving the grippers carrying the untagged bag sections into position for engagement by the said second means.

24. A packaging machine including means for advancing a strip of bag making material doubled over on itself; grippers for engaging portions of the strip; means for moving the grippers at substantially the same speed as the strip; a knife for cutting the strip transversely between two of the said grippers to form bag sections carried by the grippers; means for reciprocating the knife longitudlnally of the said strip; means for recipro-l cating the knife transversely of the strip into and out of its path; and means for actuating the knife to cut the strip while the knife is moving with the strip.

25. A Vpackaging machine including means for advancing a strip of bag making material doubled over on itself; grippers for engaging portions of the strip; means for moving the grippers at substantially the same speed as the strip; a shaft axially movable in a direction substantially parallel to the said strip; means for reciprocating the shaft at substantially the same speed as that of the strip; a guide carried by said shaft; a slide mounted in the guide to move transversely to the strip; and a knife carried by the slide for cutting the strip transversely between two of the said grippers while the knife is moving with the strip to form bag sections carried by the grippers.

26. A packaging machine including means for advancing a strip of bag making material doubled lover on itself; grippers for engaging portions of the strip; means for moving the grippers at substantially the same speed as the strip; a shaft axially movable in a direction substantially parallel to the said strip; means for reciprocating the shaft at substantially the same speed as that of the strip; a guide carried by said shaft; a slide mounted in the guide to move transversely to the strip; a knife having xed and movable blades carried by the slide for cutting the strip transversely; means for reciprocating the slide to move the knife into and out of the path of the strip; and means for actuating the movable blade to cooperate with the fixed blade to cut the strip while the knife is moving with it.

27. A packaging machine including means for advancing a strip of bag making material doubled over on itself; grippers for engaging portions of the strip; means for moving the grippers at substantially the same speed as the strip; a shaft axially movable in a direction substantially parallel to the said strip; means for reciprocating the shaft at substantially the same speed as that of the strip; a guide carried by said shaft; a slide `mounted in the guide to move'transversely to the strip; a knife having fixed and movable blades carried by the slide for cutting the strip transversely; a bell crank fulcrumed on a stationary part; a pivotal link connection between the bell crank and the slide adapted to permit the latter to be reciprocated with the shaft relative to the bell crank; a cam for actuating the bell crank to reciprocate the slide, the blades of the knife being normally open to pass on opposite sides of the strip; a second bell crank fulcrumed on and movable with the axially movable shaft for actuating the movable blade to co-operate with the fixed blade to cut the strip; and a second cam for moving the second bell crank to actuate the movable blade.

28. A packaging machine including means for advancing a strip of bag making material doubled over on itself; grippers for engaging portions of the strip; means for moving the grippers at substantially the same speed as the strip; a knife having fixed and movable blades for cutting the strip transversely between two of the said grippers to form bag sections carried by the grippers, the blades being normally open to pass on opposite sides of the strip; means for moving the knife into the path of the strip and grippers; means for moving the knife in the direction of travel of the strip and at substantially the same speed as the latter; and means for actuating the movable blade to co-operate with the xed blade to cut the strip while the blades are moving with it, the third mentioned means being adapted to withdraw the knife from the path of4 the grippers after the strip has been cut, the fourth mentioned means being adapted to move the knife in a direction opposite to that of the grippers after it has been withdrawn from the path thereof.

29. A packaging machine including means for advancing a bag section having an open mouth; means for sewing the bag section .to close the mouth thereof; a knife for cutting the thread after the mouth has been closed, the knife being normally out of the path of the bag section; means for moving the knife into position for cutting the thread; means for moving the knife in the direction of travel of the bag section; and means for actuating the knife to cut the thread while the' knife is moving with the bag section.

30. A packaging' machine including means for advancing a bag section having an open mouth; means for sewing the bag section to close the mouth thereof an-oscillating shaft axially movable in a direction substantially parallel to and at substantially the same speed as that of the,

bag section; an arm secured to the shaft; a knife having fixed and movable blades carried by the arm for cutting the thread after the mouth has been closed; a pivotal connection between the movable blade and the arm; means for connecting the movable blade eccentric to thepivotal connection with astationary part whereby the said blade will be moved to co-operate with the fixed blade when the shaft is rocked in one direction of rotation; and means for rocking the shaft to move the knife into and out of the path of the thread and for causing the movable blade to co-operate with the fixed' blade to cut the thread while the knife is moving with the bag section.

31. In a machine of the class described, the combination of means for conveying a series ,of bag sections; meansv for displacing alternate bag sections to thus form two series of spaced bag sections; separate sewing means for operating on the bag sections f the two series; means for positioning tags in the spaces between the bag sections of each series for operation thereon by the respective sewing means, each sewing means being adapted to produce continuous stitching, the tags being connected with the stitchings at a distance from their bag sections; and separate means for cutting the stitchings between the tags and the bag sections closest thereto.

32. In a machine of the class described the combination of grippers for conveying a series of bag sections having open mouths; an oscillating shaft axially movable in a direction substantially parallel to and at substantially the same speed as the bag sections; means for sewing the bag sections to close the mouths thereof; an arm se? cured to the shaft; a knife carried by the arm to cut the thread after each mouth has been closed; means for displacing alternate bag sections to thus form two series of spaced bag sections; sepa, rate sewing machines for operating on the bag sections of the twoserie'i; means for positioning tags in the spaces between the bag sections of each series for operation thereon by the respective sewing means; two arms freely pivoted on the shaft and movable longitudinally therewith; knives carried by the last mentioned arms for cutting the threads produced by the said sewing machines, the knives being normally out of the path of the threads; and means for oscillating the last mentioned knives' to cut the threads while the knives .aremoving with the bag sections, the last mentioned knivesA being each oscillated once for. every two oscillations of the first mentioned knife. 'l

33. A packaging machine including grippers for conveying a series of bag sections, the grippers being pivoted to swing -in a vertical plane; a push bar for engaging," alternate grippersto raise them out of the path of the other grippers;

. means' for retaining the said alternate grippers in their raised position to form an upper and a lower series of spaced bag sections; sewing means for operating on the bag sections inthe lower series; means for positioning tags in the spaces between the bag sections of the lower seriesIk for operation thereon by the saidsewing means, the said retaining means being adapted to lower the raised grippers; asecond push bar for engaging and raising the grippers carrying the tagged bag sections; a. second means 'for retaining the last mentioned grippers in their raised position; sew u lng means for operating on the untagged -bag sections; and means for positioning tags in the spaces between the untagged bag sections for operation thereon by the second mentioned sewing means.

34. A packaging machine comprising means for advancing grippers, 4each gripper having a pair of opened jaws; means for advancing a 'trip of bag making material doubled over on is'elf 'into the path of the opened jaws; means for clos-- ing the jaws 'on the material; means for cutting the material transversely of its longitudinal edgesv between tw'o-l grippers to form bag sections; means for filling the individual bag sections car ried by the grippers, the said filling' means comprising a hopperhaving a measuring chamber; two reciprocating slides` for controlling the filling and the emptying of the measuring chamber; and means for moving the slides in the direction of travel of the gripper during the emptying of the measuring chamber and inthe opposite direction during the filling of the chamber.

35. Ajpacka'ging machine comprising an endless carrier for advancing grippers, each gripper having a pair ofvopened jaws; means for guiding the carrier around opposite ends of the machine; means for advancing a strip of bag making material doubled over on itself into the path of the opened jaws; means for closing the jaws on the material; .means for cutting the material transversely of its longitudinal edges betweenv two grippers to form bag sections: means for filling the individual bag sections carried by the grippers, the said filling means comprising a hopper concentric to the guiding means at one en'd:v of the machine; measuring chambers rotatably earried on the underside of the hopper for registration with thebag sections, the underside of the hopper having a discharge opening therethrough communicating seriatim with the chambersat the side of the hopper remote from the bag sections; and means for closing the underside of the container clamped by the said members; means for engaging thevgrippers to swing the pair of 37. A packaging machine comprising a gripper for carrying 'a porous container having an open mouth, the gripper having a passage therethrough; a nozzle adapted to b'e received in the open mouth of the container and to communicate with the passage; means for moving the gripper and the nozzle when they are in communication; and suction means including a member having a moving inlet adapted to travel with the gripper substantially in register with the 10 end of the passage opposite the nozzle.

VICTOR G. WILLIAMS.

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