US974704A - Paper-bag machine. - Google Patents

Description

A. L. PARRISH. PAPER BAG MACHINE.

APPLICATION FILED JULY 19, 1909.

Patented Nov. 1, 1910.

9 SHEETS-SHEET 1.

A. L. PARRISH.

PAPER BAG MACHINE.

APPLIOATION FILED JULY 19 1909.

Patented Nov. 11,1910.

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PAPER BAG MACHINE.

APPLIGATION FILED JULY 19, 1909.

Patented Nov. 1, 1910.

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A. L. PARRISH. PAPER BAG MACHINE. APPLIOATION FILED JULY1'9, 1909.

Patented Nov. 1, 1910.

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A. L. PARRISH. PAPER BAG MACHINE. APPLICATION rum JULY19, 1909.

Patented Nov. 1 1910.

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A. LPARRISHP PAPER BAG MACHINE.

Patehted Nov. 1,1910.

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APPLICIATION FILED JULY 19, 1909.

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PAPER BAG MACHINE. APPLICATION FILED JULY 19, 1909.

$4 704. Patented Nov. 1,1910.

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namnmr osmosi- -ASA I1. PABRISH, F ELKHART, INDIANA.

PAPER-BAG MACHINE.

. Specification of Letters Patent.

Patented Nov. l, 1 .9110).

Application filed. July 19, woe. Serial No. 508,381.

To all whom it may concemt.

Be, it known that I, ASA 1L. PARRISH, a citizen of the United States, residing in the cityand county of Elkhart, in theState of Indiana, have invented certain new and useful Improvements in Paper-Bag Machines,

' of which the following is a specification.

My invention relates to machinery for manufacturing satchel-bottom bags' from bellows tucked tubing.

The objects of my improvements are to provide a bed or base that will be rigid and convenient, upon which the bag machine and attendant mechanisms may be assembled; to provide mechanism for cutting, creasing and opening the bellows sided tubing in such manner as to facilitate the spreading of the end of the bellows tubing into the diamond form; and, for'the purpose of spreading out i the end of the tubing into the diamond form,

to provide mechanismthat will be compara tively simple, easily adjusted, and readily understood.

The improvements will be best understood by referring to the drawings forming a part of this specification, in which:- I Figure 1 is a side view of the bag machine in which unnecessary details are not shown; Fig. 2, a top view of the base of the machine, the mechanisms which it supports being removed; Fig; 3, a side view 01. a tab cutting device; Fig. 4, another view of the mechanism shown in Fig. 3, looking in the. direction of arrow at Fig. 3; Figs. 5 and 6 are enlarged details of Fig. 3; Fig. 7, a View of a creasing device taken on line '1. T. of Fig. 14, all gearing being omitted; Fig. 8, a creasing plate and tuck opener; Fig. 9, a-detail of Fig. 8, showing a section taken on line n n of Fig. 8; Figs. 10 to 12 show operations being performed; Fig. 13, a fragment of tubing showing the efi'ect of the performed operations; Fig. 14, a side view of the mechanism shown in Fig. 7, also parts of the diamond fold forming, and main cutting mech-- anisms, the near side frame being omitted for clearness; Fig. 15, a detail of the mechanism shown in Fig. 16; ,Fig. 16, an enlarged view of the diamond fold forming mechanisms taken on line V. V, of-Fig. 14:; Figs. 17 to 22, are details of the bottomforming and side gripping devices, and show s'ome of their operations; Figs. 23 and 24, .show the diamond of the bag bottom in an advanced position, the side gripping and cutting de'-. vices being omitted; Figs. E5 and 26, are details of the main cutting device; Figs. 27, .28 and 29, are further explanatory details of the side gripping devices: Fig. 30, a detall of a final pasting and cutting device;

Figs. 31 to 34 show operations performed upon the paper by this machine.

Similar letters and figures refer to similar parts throughout the several views.

All parts of this machine are secured to other parts where necessary, by bolts, screws and means common in shop practice, and are not shown in these drawings where not necessary.

R ferring to Fig. 1, A indicates a base or bed upon which the parts of thebag ma chine are assembled and secured where necessary in any usual manner; the based. is constructed with a flat top, having sides and ends at'substantially right angles with the topiace, making a basethat is'hollow underneath, and giving .it somewhat the shape of a large hood or cover; in the hollow space in the under side of the base-are located stiffening ribs a, in anyconvenient position; a indicates an opening in the base which has sides and ends a extending downward from the top about the same dis tance as the outer sides. The slightly raised faces-a on the top of the base and its sides, are finishing faces upon which difi'erent parts of the bag machine are secured; a are legs which support the body of'the base, clear of the door. This base, consisting of the parts substantially as indicated, is cast integral, making a very rigid .and substantial' base which is not liable to spring or twist, and will hold the difi'erent mecha- "nisms supported by it in correct alinement.

A depression, a; is formed in one side of the base, (best seen in Fig. 2,) by locating a part of the side wall nearer to the center line I, ll, of the base. It is also obvious that the side framessuch as. are found in most machines, over and around which the operator must lean while working, are not found in this section of this machine, their absence and the depression 0' allowing the operator to stand in a nearer and; inore convenient position to the machine while performing necessary operationsin connection with this section of it. a indicates a device for pressing the foldedand pasted bags; the device may be of any convenient form, and mounted upon the base A. The carrier belt and its rolls awn-for removing the folded bags from the machine, are supported within the opening (1 end below the top of the base, which allows .the bag machine. mechanisms to be located conveniently lower than aveult'i the power with which to operate-the machine and its attendant mechanisms; The former post 5, F 1g 3, 1s secures the base A, and has secured upper end a part of e tucketl tube formic" device 5,

ov wnqdl I \JJLJk/l, I

the thifii plate h of somewhat to the 7 having the us al which the pap bent emit of the hei s ets 12, and having an. 0 through it, in which 10 is located, the roll being su to r, tate 1n bearings 11 of oz'ackets which are roll secured to post 3'2 and 6,) has "turned in its grooves 13, 13, anclthe groove, 14lcu in the face of the roll at right angles W1 and having rcunr" ends Where it joins the grooves 13, 1?, 1. c are cut clee toll to s fe sirne. e.

ll cut away hetwn coves a socket. socket as to match the combined. she e the grooves l3, an'cl 1s: The block iii is se cured to shaft 20, which revolves in hearings 21 an 22, which are secured by their flanges 21 and 22, to upright bracket 23, the hubs of bearings 21 and 22 extending into slotted openin s 23Fand 23, the slotted openings being or the purpose of permitting adjustment of the diflerent mechanisms toward or from each other as may be desired, and also permitting the, useof gears and cutting devices of difierentj diameters, with the same bracket.,..

The bracket 23 is secured to the base and has securedto it hearing as, in which is supported one end of shaft 25, which ch, tains its motion from shaft 1, through a pair of miter gearsQfi and 2%; gear 26 is secured to shaft 25', and with 'miter gear 27 secured on shaft 2',- Which revolves in the same direction as the paper travels; gear 28 is secured to shaft 20, and meshes into gear 2 9, secured to-pin 30,

revolving in bearing'Bl, which is secured to and bearing 35 bein secured to former post b gear '36 is secure to shaft 33, and meshes with gear 34 which issecured toroll 10 in any convenient manner. The circumference of i=3 1s equal in length to the len th the g thbe desired, and bioch. lll'lllzld to the same ra-fiius as roll i when motion a'pplied'to them through the 5 embed, they will revolve in ethenand t F no r and between i i 2 3. .0, will have the mail g; cu Y teeth which purposes l2 es sicie fz'ai support the heanngsd l" nal cl shaft 38, has-i cre'eser hubs E17, scpcr hilfi'ii, 2;; i 15 39, 39. The c es like, have e t. 6 each '5 and 1 in which jo-un tv-Jo heei'ihgs the machin are eels secs i: sexes 5, 3, by screws 58,

stings H, 41]., have, them, sleeve extension re soured coll structeol substantial I (.Lc exp etc-21c of them ii he deemed sufiicient. Collar-e5, has forme integral with it, an extension so, which has a further right angle extension 46* its outer end extending towartl the center of tie b2: machine; the side face 416 is cut away near its outer end, forming faces 26, 46?, and. secui'ecl to face so, is an angle piece 4?, thereby creating right angle slot or slirlewvay, in

irl

which is supported, to sl e freely, as enguhe angular sheoetl iv. a), t

.l 1 I W, V 1. or steep: con r j llgnb pointed, and having creasing grooves 51*- Loosely supported in side frames 3, 3, is

shaft 52, upon wiiich are secured levers 53'; lever 53 has secured to it a pin 53, upen which is loosely supported cam roll 53 heering against the face of cam 56, which is securecl to shaft 38. The spring 57 sup- 'aorted on shaft- 52 and havin meet its ends 57 secured 'to side frame 3, exerts a pressure at Its other end 57", upon lever 53,

in a' direction which compels roll 53 to bear --against cam 56 at all times.

53 and 53, have U shaped ends 58, 58, which the rolls 51 are located. A short slot 59, is formed in the side wall of angle tomeet and travel-jwith the blades 61 so 47, which provides clearance for the roll 51? when it is at its extreme forward position'. The tubing P when passing shafts 38 and 42, striiddlesitsside. tucks over the extensions 51, of'the angles 49, or, for a better 4 understandinglf'will say, the'proper place 15- of the machine, is within the tucks of the for the extensions 51, durlng the operation tubing Pf 'Thekca'm 56 is so shapedasto cause the 'free ends of-levers 53 and 53' to 'oscillate back and forth, and they through contact with rolls 51, cause the angles149 to slide back and-forth in the slideways,

, and as thecreaser blades 61 come in contact with the tubing P, the angles 49 are caused that the creasing-grooves 51 will be" in line with the blades 61, and as the tubing 'P travels with the, creasing devices during their combined operation, it will be creased substantially as shown in Fig. 13, that is, one face of the tubing, and one-half of the tucks will be creased in one direction, and the opposite face of the tubing and its half of the tucks, will be creased in the opposite direction. As shown in Fig 7, one side of the tubing and tucks will be creased up, and

the opposite side of the tubing and tucks will be creased down, and all of the creases will extend from the outside edges of the tubing toward the center, a distance approximately the depth of the tucks. It will be seen by the foregoing explanation that one function performed by angles 49, and their extensions 51, is that of angular creasing plates, and an explanation of their operation is best shown and illustrated in Figs. 10 to 12, in which the tuck of the tubing is cut away for a clearer view. After the creasing blades'61 have revolved out of con tact with .the tubing, the angles 49 cease to .travel in a direction with the paper, and are 'causedy. by cam .56, and; levers 53, 53', to

slide'in a reverse direct-ion, fto the position shown in Fig. 10, meeting and traveling in time with the creaser-blades as ,set forth. The extensions '51, also perform. the very important bperation of separating,=or open- ;situated a distance apart andcarrying a '6 "'cu-tting mechanism, Figs.r25'and Roll ing the tucksof the tubing, so that the side gripping devices ofthe bottom forming 'portion of this machine may enter-the tucks Supported in frames 3, are bearings and 66, in which are journaled shafts 63 and 64, upon which are secured rolls 67 and 68,

Both levers 67 has a clearance space 69,-"formedin one side of it, andsecured to one' wall of the clearance space is a. cutting blade 70, a portion of which, 70 is -cut away leaving a clear space in its center. 'A backing strip 7 2 is carried by"roll- 68,"which backs up the tubing P, while theknifeo crates upon it,

and hasaclearancespace 7 3," or'med through its length to clear the points,- of the knife teeth as they cut"through-the'tubingP'.' It

also has a portion 72 vcut awayso as to be clear of the paper-and avoid straining it at this central point when the sides of the tubing are being cut.by knife 70. A gripping bar- 74 is carried by roll 67, having pins 75 formed upon it, which are loosely inserted into holes 76 in 1 01167, pins 78 being se ing; into 'oles 80 in roll 67, thereby retains ing gripping bar 74 ,to roll 67 during its rotation, the holes 80 being larger than pins 78 permit the bar 74: to move to and from the roll 67. which enables the bar 74 tofgrip different thicknesses of tubing between itsface and the backing strip 72, the bar 74 being held against the tubing P by springs 81, inserted in holes. 82, in rolls 67, thereby holding the tubing tightly, so that the teeth of knife 70 will cut through it readily, and.

not push thetubinginto the cl arance space 73 of backing strip 72. By referring to Fig. 32, itwill be 'seen that the tucked tub-- ing P, is cut on the line p,which is back of the cross line 7) of the thumbplace 7), and

if the tab p lay down in theopening from which it is cut, the-knife 70 would cut into and mutilate it, and to prevent such mutilation is one of the objects which I accomplish by creasing the tab 72 and thus cause it to stand away at an angle to the face of the tubing 13', and the knife 70,'as it is rotated,

will pass the creased or bent back tab 77 it is also supplied with spring holding means 83. The collar has bearing 'faces 86 on each cured in ins 75, the ends of pins 78. projectside of it, Fig. 20, against which. shoulder screws 87 are secured, and supported upon the screws 87, is a side gripper 88, of special design.

The side ipper 88 is made of metal, preferablyo steel, and in one piece, Fig. 21, and while I may be obliged to designate the different features of this gripper by dif-' ferent names, which I do for the purpose of explanation only, I consider itone. piece of mechanism, and I shall refer to it as a side gripp er, or,- lgripperjf88, as. may seem.

suitable.

The gripper 88 can heof any convenient shape, bein shown in these 'drawi-ngs somewhat flat shaped, having on, its free end a bearing'br contact face 89,.and a 'pping extension 90 located near one end 0 contact face 89. .The inner end of-the sidegripper is formed so as to leave a leg extension- 91,

at each side, the le s being straddled over collar 83', and the si e 'pper being loosely supported upon shoul er screws 87, which are inserted through holes '92,'in legs 91-, and secured to c0llar-83; .Oneend of spring 93, is secured to the side gripper through holes.S, and the other end is secured to any convenient means, as pin 83*. The collar 83, and side gripper 88, are secured in position upon shaft64, with roll 68, (Fig 27),-

or e u'ivalent means, the side-gripper is he d securely'in aninclined. position toextension 90 resting against the face .of roll. 68, and while theside gripper, is heldin this" inclined position, the contact face 89 is turned to a radius that is equal to the distance from the center of shaft 64, to a cen ter line L, between rolls 67 and 68,-and-after the turning of face 89 has been completed, the holding means may be dispensed with, to permit the side gripperto swing freely upon supporting screws .87.' By refe to Fig. 19, it will be seen that if but one side gripper was leftin place u onits shaft, and the other one-was remove the oneremaining in position would rotate with-its shaft indefinitely without any movementtoward the accompanying roll or the tubing, on account of the total absence of cams, rolls or'other mechanisms, such as are generally used in the operation ofside grippers in most bag machines. To obtain thedesired movement, l-have designed these side grippers to operate in pairs, and abetter understanding of their operation will be had from the following explanation Secured to shaft 63, Fig. 28, is a collar 83, and a side gripper 88, which are con-- structed the same as the ones on shaft 64, and previously described; when the free endsof grippers 88 are swung backward from rolls "67 and 68, the contact faces 89.

extend .bey'ond'the center line L, in which case, if they are rotated, they will come in contact as they approach each other in coming to the position where they grip the tucked tubing, and, after further explana 'tion itwill be obvious that I intend them to come in contact. To prevent the side rip;

pers from coming together harshly, re-

lie've the forward or contacti ends 96 of contact faces 89, so that the en s96 will be on about the radiusof;the center-line L,

when the sidegrippers are in their swung backward position. The broken line 1' in Fig. 20, show thegreater radius occupied by faces 89; when grlppers 88 are in the back ward positionshown in Fig. 28, the radius of the contacting ends is gradually increased from the ends 96, until the full radius of the faces 89 is met, at about the point 97; the contactin ends are also given a somewhat rounde shape as shown at 98, 98, Fig. 29, and if desired, the whole length of the contact faces 89 may be given the same, or a somewhat similar shape; the contact faces89 being relieved at. the ends 96 will permit the grippers 88 to come together gently as they rotate.

When the side grippers are in their backward position, Fig-28, the contacting'ends 96.a1'e.-on a line' with each other that is a 7 distance inside ofthe center line through su1ip0rtmgscrews87, as indicated by broken :9 am): It is obvious'that the springs the ends-of theside grippers andsignal-te tes; seenin-Eigi'li). As thesi de gnpperseontinue after contacting at ends 96, theyw-ill push increasingly-against each'other as theyrolla "-st the increasing radiuses of. the contacting faces from ends '96 to positions '97; andas the points'of contact'at 96 are insidelof the supporting screws ,the free ends of the side grippers, asthey'push increasingly, against each other, w ll alsoz-lpush or swing each other inward. toward their accompanying rolls, thereund-v ed faces 98" permittln them to roll against each; otheneasily, an the grip ing extensions 9.0 will be projectedinto t -e tucks of the tubing P, and grip the .tubin'g'to the rolls 67 and 68, at points where the creases P P have previously beenmade, and where the corners of the ba bottom areto he fer med, the springs 93 engthening out wa'ldly.

The side grippers continuing to rotate as I the grippers 88 swing each other inand bear against eachothersfaces 89, will continue to grip the tubingto'the rolls 67 and 68, forming the corners'of the bag bottom and drawing the creases P P?',- of the tucks into a strai ht line, reaching the po siti'o'n-shownin Figs. 17 and 18, when they will begin to gradually run. out of contact with each other at-a point 99, from' which point to their ends the faces '89' are re- ,ieved in substantially the'same manner as at their leading ends 96-, and as they run out.

of contact the springs 93 pull the grippers away from the partly formed bag bottom,

and back against the cushions 85, Fig. 1 9.

The contact-faces 89 could be terminated at the point 99, which would permit the grippers who pulled back against the cushone, the side grippers will .not

ions very quickly and harshly, which would.

and rotating therewith. When a change of paper is made during the operation of the machine, .from aheavy sheet to" a lighter ip the paper to the .rolls firmly, which w1ll cause the-making of bad shaped bags, and to -over come:this difliculty I have provided: the fol- .lowing explained adjustment, which. is to compensate for the diiferent thicknesses of paper operated on, and is consequently very slight. Bearings 65,. 65, of shaft 63, and supported in frames3, 3, 15 .and16, are arranged for an up and down movement produced by turning the screws 101 thread,-

"ed}ins'traps 3 3', and are held; a inst the screws 101 by sprlngs 102. It w' 1' be seen.

- that by turning thejscrews- 101 downward the side grippers will be pushed together and their free ends will swing fartherin toward 'their'--.accompanying rolls, and'the. extensions 90 will grip the, paper more se-= mcurely." The reverse operation from the .madefrom-a "In Fig. 17, a side grip er has a' portion of foregoing bein the case when a change is ht 'sheettoa heavy one.

it cut awayshowing' a ladelOO secured-to p on which thebag bottom is folded when -roll .67, during the rotationof which, and the time of formingtheco'rners of the. bag bottom, the upper face of the tubing P is bent over the blade, definin the .crossline flattened into thediamond form. Secured upon straps 3' 3', and

Jporting cross-bar 105', near the center of which is secured by screws 106, a plate 107, having its secured end formed at an angle with the main portion, the free end of which is curved and may terminate in astraight end 108 or the curved shape may extend to the extreme end. Formed upon the face of the plate is a stifieningrib 109 supporting diamond fold flattener 110, which withthe '1'ib 109 and plate--10? are cast integral, Figs. 14 and 16. The plate'107 has two clearance spaceslll, formcdzin its edges"'to .clcar the inner creases of the side tucks of the tubing P as it moves forward. The tab standing at an angle with the tubing, will come in contact with theback face' of plate 107 and slide upward as the side 1ppers open the end of the tubing to the's apeshown in Figs. 1? and 18, which issubsta'n-l the frames" 107",be1ng gradually inclined backward,- fold- 11.9 3 3, by screws 103 are extensions 104suptially what is known as the box form the upstanding posit-ion of the tab at this time facilitating its movement upward along the I back face of'said p1ate'107 and preventing its becoming)mutilated or turned in a wrong direction. uring the operation of opening out a tucked tube and spreading a diamond form on the end of it, the l difiiculty encountered in folding'the sides p, p, in an inward direction is well known, and compli:

'cated and expensive operative. mechanism is necessary in most bag machines to overcome the difiiculty. I. overcome the difiiculty largely by forming the creases p, p, in the tublng P, reference being had to 'Figs. 17

and 18, in which but one-half of'the bottom formmg mechanisms are shown, they "being deemedl suflicient for explanation.-----;When' the sidetucks of the tubing are spread apart by the grippers 88, the creases p 'will'be drawn lnto a stra htline wit1 each' other,

formingsubstantia 1y one crease on the line Where'theside edge of the bag bottom is to be formed, giving them the appearanceof havingbeen creased from the inside of the tubing --.t'oward the outside, and as paper gpperallyfolds in a direction op osite to the ectionin which it is crease the sides of'thelbag bottom 6 will, be inclined in wardly and old' into the desired diamond form very readily and without 'the'use of .much mechanism. Astheside grippers release their, holdupon the corners .p, p, the box form of the ba botvtomis drawn forward and downward 'y-the bag body connection p with the precedi and rolls 112, over table {1.- secure to frames ,3,- 3, the"plate 107 "retardin the upper or rear'portion at-tab p whic elongates the bag bottom, Fig. 19'and inducesthe sides 1) to-.fold inward an over the face of plate 107, and as the bag bottom still further- .Pro resses, Figs. '23 and 24, the rear end of liag bottom is drawn along against plate ed on the .crossline and against the body of the tubing In t 1e meantime the sides p of the bag bottomcontact with and pass ander the ends of fiattener 110, by which the sides are flattened into the diamond form, the lamond being pressed and pasted in the bag'and completing it by the usua 1 pressing-1 By the foregoing explanation it will be seen that the mechanisms used inthe diamqud fold forming section of this machine are, fewin'nu'mber and very s mple, with-very slight and readily understood a justments, 'the multiplicity of mechanismsfound necessaryin this'section of other inachines of this class being conspicuously-absent from this one as for instance,the ones Bartholomew.

shown in Patents ho. 578,550 granted to (1.. E. Dulen; and No. 7 36,678 granted to P.. L.

' Any convenient means maybe employed -to supply motion to this bag mach ne, as

from'motor a to gear g secured to shaft 1,

'1 for b a-belt on pulley 2, secured to shaft 1,

. in p ace of gear Shaft 1 being the main 10 drivingshaft has secured to it miter gear" 25 meshing wit-h miter gear 25 securedio shaft 25., to which is secured miter ear 26- giving motion to miter "gear 27 ens aft 42, and gear g conveys motion through.

loose pinion g? to gear g on'shaft"63. flGear 51* also gives-motion through loose inion .g .to gear g secured toshaft' D an gear g.

moves gear 9 on shaft D Gear 9 also gives motion to gear 9' secured to 11mm, and gearg through loosefgear gfito gear 9- on shaft 115;:ge'ar g jmoves geaqg 'secured to shaft 116, and itl'to gear P 'P,'which' rotates paste roll C; Gear 9'? also. gives motion through loose pinion g? tozgear g secured to shaft 117, gear 9 -moves loose gear gtfi and it movesgean 9 secured. to

which transmits'motion' through carrier belt "119 to presser a and its attendant mecha nisms. -Gear 9 securedto shaft -120'i'e--- 'ceivesmotion from loose piniong,= and gives motion to gears 9 g and ya-secured to shafts 121, 122 and 123. All loose gears, and pinions are supported upon suitable pins which are secured in proper positions for the gears and pinions to operate. It. is obvious that when motion is applied to shaft 1, all gears and their attendant mechanisms in this machine will 'rotateiin the proper di rection and in time with each other .as -desired. I

Fig. 31 indicates paper being formed into tucked tubing, with tabs p out 'itand standing at an angle with the paper. Fig. 32 is acontinuationof Fig.31 showingthe creases 32 ,11, made in the tubing at a posi tion where the corners of the bag bottom are to. be formed, and at an advanced position showing the tubing cut through alliof its plies leaving a narrowuncutconnection. P

and the tab p unmutil'ate'd, and'at' a further advanced position showing the end of the tubing thrown into substantially the box form, the top face-of the-tubing having been bent in the meantime over the edge of a" blade on the line 1?. Fig. 33 showsv the bag*- bottom flattened into the. diamond form against the tubing, having paste P? "applied in a. usual manner, the connection P- sev-i cred, andat astill-further advanced position.

The operation, of the machine is as fol- 1 been made, clos ngthe'bag bottom ft I which-it is finished b'y a t A lows :-The' paper is drawn into the machine by thefiisualldrawrolls uponshafts D and D becoming tuckedtubing as itis drawn over the former-b. The tabs' 72? are Y creaser blade "l91just'rback'of the creasing edge; 15 upon 'r'ollf l0'-," ca using -.the' tabs to stfandf'at angle with tli' 'pa'per as itis'd'rawn between roll 10 and closers-and; into the machine; As the; shafts "3 8 and 42 -rotate,

the'cam- 56 oscillates-'the'levers' 53'and 53,

causing the creasing p1ates- -within the tucks ofthe meet-and revel with the ng 111a bottom areittrb'ef formed, the creasing blades 61; on 'ningintheir rotationfand the cam f 61- alsthe'y' r0 ate; and crease 'gthe tubingfas 1t travel'siwith them, -'a't points whereithe epl'nerfs-and'sideiedges of thebag 56-ausingjthllvrs taraiid 53" td-oscillate and move thegj creasing plates -backward+to .m'eet fthe nextpncoming'bagposition.in the tubing. 1 Asfthetubih'g moves forward .the

knife 'I0"passes the tab "p which projects into the cIear'Spac-BQ the tubing .is gripped- :bythe bar f i against backing strip .72 while yum; knife IO- outs the tubing, leaving a narshaft 118, upon which vis secured mute, 'row-uncutconnection, inth'e bottom-side,

the creasing plates" w thin the tucks ofthe by knife; 70; hortly after the-'tu ing is out and the tuck's z-are' separated, the side grippers come inv contact with'eachotheras set forth, and swing their extensions into the tucks-of-the tubing and grip jitfto rolls 67 and' 68, at-points wheregthe corners of the bag bottom are to'be formed, and where the creases 2 f, havebeen made, the grippers holding the tubing to the; rolls as, they rotate to the position shownin Figs. 17 and 18,

. which is'substa'ntially the-box form,. in-the meantime the tabf p .cont-acting with" plate 107 and s lidingi l pwal dflndithe top ,face of the? tubing being. bent over blade; 100;. At; this position" the side grippers begin torun out of contact,fr e'leas'ing the corners of the partlyuforined bag bottom and being pulled back-b springs 93 against cushions.85.4 As the si' e 'grippers release the c'orners p,- 77 the box form of the bottomvis drawn forand rolls 112 over table 4,- and. as it i s draw-n along the plate 107 retards the rear portion of tab 72 elongating the bag bottom and causing the sides '77? to fold inward "and over the. -face of plate 107,- which inclines the rear end of. the .bag bottom backward, folding it on the crossline p 'andagainst; the body-of. the tubing,-the sides being flattened 'intothe'idiamond form by flat being also iseparators, will cause the tucksgto .open agent after the tubin "isIcut 1 Ward and downward by the connection 72 larly for use in connection 'with 'heavy ing, final severing and folding devices of known type, and the details ofsu'chdevices" folds 7) and 7')" are made and pressed in a manner as set forth.

.tube cutting mechanism; and one" of? said rolls havlng a clearance space formed la 88, arranged to enter, the tucks of ftl e tub? tener 110, after which the bag bottom is pressed, pasted, severed at 29 and the final The tubing, whn'cut through all of its plies and still being connected withthe preceding bag at 79- is considered as havinqan end upon it and is' referred to as sue "in this specification. The directionimJvhiCh" the paper travels in this machine 15:; con; i

sidered the forward one. v V v- V I have shown the side grippers in this machine as o crating in connection with a pair of rolls carrying .other mechanisms, which is not absolutely necessary, as the side grippers may be operated with a pair of plain rolls and the other mechanisms .operated in any other desiredposit-ion or man ner, in fact the side grippers may be used in other machines and cooperate with mechanisms that are entirely'difi'erentin their construction and operation from the ones herein shown, and still perform the operations. for which I have designed them. I -I have designed the creasing mechanisms.- for forming the creases P P more-particu-r weight papersthat are' stifl and diflicult to fold. and they maybe dispensed with when the machine ,is handling paper of lighter weight. And I wish it to be understood that variations from the'meehanisms herein specified can be made without -departing fr'omjthe spirit of my invention,

'lhe tucked tube. forming, pasting, I'PI'GSS,

this machine are, or may be, of any well are showno'nly so far asi's deemed necessary fora complete understanding --in'con nection with the devices'which more particularly pertain to this invention;

What I do believe. to be new,-and desire to "secure by Letters Patentis 1. In 'a' paper bag machine, the combis nation of rolls between which tucked tubing'pass'es, rotating sidegrippers as '88, 88, 88. 88, arranged toenterthe tucks-of the tubing and having bearing'faces opposing eachother andextensions adapted togrip the papen to the rolls,- said rolls carryinga 2.111 a paper bag machine, thecombination of rolls; between which tucked-tubing passes, rotating'side grippers its-88,88, 88,

in}; and having bearing-facesopposingeach other a1'1d' extensions adapted to grip the paperto the rolls,.said rolls carrying ajtube gripping and cutting mechanism, and one of said r'ollshaving aclearancespaceformed i itsltucksonly ,ofthe'tubing are-bent defin'-- 'ing the crossline P",

4.3111 a'paper. ba machine/the combination of a pair of si e grippers suitably sup- ..jpflorted for rotation, with means against which to grip tucked tubing, bearing faces upon the outer or free ends of said grippers adapted "to bear upon one-another, whereby they act to rip said'tubinga'gainst said means, and the lnner ends of said grippers being adapted for their support.

'5., In.a paper bag machine,the'combination of a pai'rof side grippers suitably supported for "rotation, with means against which to. grip tucked tubing, means for grippingthe tubing, bearing faces npon the outer or free ends of. said grippers adaptedto bear upon one another whereby they act to project-their gripping means within the tucks of the tubing and ip itagainst said means; and. the inner en s of said grippers being adapted for their support.

6.;:I'n1ai paper ba machine, the eon1bination of a 'pairaof side gripper-S'suitably supported for by rotation, Iwith means against which. to grip. tucked tubing, gripping extensions located 1 nearone 'end of' bearing grippers, said bearing faces 'Bieiiig adapted to come incontact whereby-they act to grip the tubing to said means,'saidbearing faces beingformedvtc a suitable radius and having-their ends. relieved, and the inner ends of the grippers being adapted for their support. f

. 7. In apaper bag machine, the combination of a; pair of suitably supported rotating side grippers,-Itvith means'against which to grip tucked tubing, bearing faces andl-gripping means located upon theiroutenor free" ends,-their inne'r ends being adaptedfor .thehpsuppdrt, the ,bearing *face'sbeing formed .to-a suitable radius andgiven a rounded shape, and the ends of-the bearing faces being relieved, and means to rotate the grippers.-

' 8. In a paperbaginachine, the. combination of a pair of side grippers'suitably sup ported 'for rotation, with means against which to grip tucked tubing, gripping extensions 90, hearing faces 89 with relieved and rounded ends, leg extensions 91, holes 92,-and spring securing means. all substantially as specified."

- 9. In a paper bag machine, a pair of par- -'faces located-upon: the outerlends. of the allel shafts, collars fast upon said Shafts, 1-0,-

tating sidegrippersloosely attached to said In a paper.bagiiiiacliine, the combina collars and having bearingfaces adaptedto.

'be.1 brbught into contact, cushions secured to the'collars andfmeans arranged to pull the grippers against the cushions. I

.10.In.'a paper bag machine, the combination of-apair of rotating side grippers, suitable supports theljefonand means for rotatinto the-tucks of the tucked tubing. f

11. Means'in a aper bag machin manipulation of thel grippe'is, said grippers having opposed .--bearing faceson their outer ends ar- 'ranged to come inconta'et with and bear against each other,'. whereby the grippers are caused to project their gripp ng ends for the fi'erent thicknesses of paperby .s'idegrippers, comprising, a pair or shafts, avpairof rolls secured to the shafts, side grippers arranged in pairs at each end of the rolls, means to support androtate the shafts, rolls and grippers, said grippers bearing against each other as they rotate,

thereby projecting their gripping means near to said rollsto grip the paper. to the rolls and means for varying the distance between the grippers whereby they'may operate on diiierent thicknesses offpaperg 12. In a paper bag machine, mechanism for opening out the box form on the end of tucked tubing consisting'of a pair oi rolls between which the tubing passes in'o0mb'-' nation with four rotating side grippers arranged to operate 1n pairs and havmg.op-; posing hearing faces adapted to' be brought into contact whereby the grippersgrip the tubing to the faces of the rolls and open out its end into the box form of the bag bottom to be formed, and a blade, carried by one of the rolls, upon the edge of which one face of the tubing is bentwhile thebox form is being opened.

13;. In a paper bag machine, the combination of apair of rolls between which the tubing asses, four side grippers as 88,88, 88, 88, arranged and attached to the shafts in pairs at each end of the rolls and rotating therewith, the grippers of 'each pair being adapted to contact'withneach other and.

thereby themselves to PI'OJGCi) their gripping ends between the rolls and the tucks of the tubing, and to grip the tubing to .the face of the rolls and spread open the end ofthe tubing into substantially the box form of the bag bottom; the grippers also releasing their grip upon the tubing and means to retract the grippers from the tubing as they release it.

14. In a paper bag-machine, the combination of a pair of rolls between which the tubing passes, side grippers as 88, 88, 88, 88, arranged to operate in pairs and attached to the shafts at each end of the rolls and rotating therewith, the grippers of each pair being adapted to contact with each other and thereby themselves to project their gripping ends between the rolls and the tucks of the tubing, and to grip the tubing tothe face of the rolls and spread open the end of the tub-- porte .ably supported and curved near its free end,

a stifl'eningrib and afiattenersupported by said rib, and made integral with said rib and plate, and means to draw a partly formed bag bottom a ainst and around said plate and pastsaid Eattener by which it is folded into the'diamond form. Y

16. In a pa er bag machine, a curved plate and sti ening rib, and a flattening means supported'by said rib all made integral, said plate being adapted toclear the inner creases of the 'sidevtucksof thet'ubin and said plate being rigidly sup-. the line of travel of the tubing substantially'as' specified.

- 17.0In a paper bag machine, mechanism for spreadingjthesdiamond fold on the end oftucked tubing comprisin a pair of noncontact-ing rolls between w ich the tubing passesin' combination with four side ippers arranged inpairs at each end 0 the rolls and rotating therewith, bearing faces upo'njthe outer ends of said grippers, the grippers of each air being adapted and so arra11'ged.that .wh e rotating, they cooperate with each other by the contact of their bearing faces and act to grips the tubing to the rolls and formthecorners and side edges of'the bag bottom, a blade carried by one of the rolls to form the cross-line P in one face only of the tubing, a curved plate and a flattening means rigidly supported in the. line of. travel of the tubing and acting to fold the partly formed bag bottom into the diamond fold and against 'the'body of the tube, and means todraw the bag blank away from the grippers and against the plate and fiat'tener. v

' 18. In a paper bagmachine, the combination of rolls as 67 andGS-carrying a tubecnttingimechanism and between which the tubing passes, one of said rolls carrying a blade by which the line P is defined in one face only of the .tubing, four-rotating side gri pers supported in pairs at each end of sai rolls, cooperating bearing faces upon the grippers adapted to come in contact whereby the grippers-operate to form the corners andside edges-of the bag bottom, a

"plateand a flattener made integral'and rigidly supported, and arranged to fold party 4 formed bag bottoms into-diamond form, and

means to draw the bag blank away from the V grippers and; against the plate! and flattener.

and acting to fold thepartlyformed bag.

- the creasing plates,

armor 19. lln a paper bag machine, creasing plates adapted to pro ect within the tucks of the tubing and separate the tucks, a creasing groove in oneface of, the creasing plates, a creasing groove in the opposite face of means to operate with the creasing plates to crease the faces of the tubing and its tucks, and means to support and operate the plates and the creasing means.

20. In a paper bag machine, creasing plates adapted to project within the tucks of the tubing, rotating creasing blades arranged to operate with the creasing plates and crease one face of the tubing and onehalf of the tucks in one direction, and to crease the opposite face of the tubing and its half of the tucks in the opposite direction, and mechanism to support and to operate the plates and blades.

21. In a paper bag machine, the combination of means for creasing the opposite faces of the tubing and itstucks in opposite direc tions toward each other, a pair of rolls between which the tubing passes, rotating side grippers as 88, 88, 88, 88, arranged to swing their gripping ends between the rolls and into the tucks of the tubing, and grip the tubing to the faces of the rolls and form the corners and side edges of the bag bottom to be formed, where the faces of the tubing and tucks have been creased.

22. in a paper bag machine, the combination of mechanism for creasing the opposite faces of the tubing and its tucks in opposite directions toward each other, a pair of rolls between which the tubing passes, rotating side grippers as 88, 88, 88, es, arranged to swing their gripping ends between the rolls and into the tucks of the tubing, and grip the tubing to the faces of the rolls and form the corners and side edges of the bag bottom to be formed, where the faces of the tubing and tucks have been creased, and a plate and its fiatteuer arranged to fold the partly formed bag bottom into the diamond form and against the body of the tub ing.

23. In a paper bag machine, the sleeve extensions 44, 44, collars 45, 4:5, having extensions 4c, 46, and 46 46*, angles 47, a7, secured to faces 46", 46", the slideways in which are supported the angular creasing lates, rolls 51,*51, levers 53, 53, secured to shaft 52, cam roll 53 bearing against cam 56 secured to shaft 38, the spring 57, the creasing hubs 39, 89, 39, 39, and the creasing blades 61, all supported and arranged to operate substantially as and for the purpose specified.

24:. In a paper bag machine, the combina tion of a suitable base, a bracket secured to the base at one side of the machine center, said bracket consisting of an upright portion having at its upper end an'overhanging 10 provided with extension toward and near to the center of the machine, a tab cutting and creasing means supported at the end of said extension, and mechanism supported by said bracket acting to operate said cutting and creasing means, substantially as shown and described.

25. In a paper bag machine, the combination of a suitable base, a bracket secured to the base at one side of the machine center, said bracket consisting of an upright portion having at its upper end an overhanging extension toward and near to the center of the machine, a former post secured to said base, a former plate supported by said post, roll 10 provided with grooves and block 16 between which the paper passes, knife 18 adapted to pass its teeth through the paper and into said grooves, thereby cutting a complete tab at one operation, and mechanism supported by said bracket and said post to operate the tab cutting means, substantially as shown and described.

20. In a paper bag machine, a tab cutting and creasing mechanism consisting of roll grooves, and block 16 between which the paper passes in combina tion with knife 18 adapted to pass its teeth through the paper and into the grooves thereby cutting a complete tab at one operation, blade 19 and edge 15 to crease the tab and cause it to stand at an anglewith the paper as it is drawn into the machine and means to support and operate the tab cuting and creasing mechanism substantially as shown and described.

27. In a paper bag machine, mechanism for cutting a tab in the paper and causing the tab to stand at an angle with the paper in combination with a pair of rolls between which the tubing passes, one of said rolls having a clearance space formed in one side of it into which the said tab projects as it approaches the roll, thereby permitting the tube cutting mechanism to cut the tube without mutilating the tab, said tube cutting mechanism and rotating side grippers as SS, 88, 88, '88, arranged to operate with each other in pairs and with the said rolls and tubing, substantially as specified.

28. The combination in a paperbag machine with means for forming bellows folded tubing and for preparing the forward end of such tubing for the formation of a diamond fold, of mechanism for spreading the diamond fold, comprising suitable rolls side grippers arranged in pairs rotating with rolls and provided with gripping ends entering the tucks and gripping therh to the rolls, and also spreading the folds and forming the side edges and corners of the bottom, said grippers being caused to thus act by their contact with each other, and

mechanism for flattening the bottom.

29. A paper bag machine having means,

against which to grip tucked tubing in combmation with suitably supported and rotating side grippers adapted and so arranged that while rotating and contacting with each other they themselves project their gripping means between the tucks of the tubing and grip the tubing to said first mentioned means and form the corners and side edges of a bag bottom.

:60. A paper bag machine having a knife adapted to cut through all the plies of the tucked tubing and leave an uncut connection as 22 between the bag lengths, a gripping means upon the rolls located forward of the knife and acting to put tension on the paper in combination with non-contacting rolls between which the tubing passes and by which the knife and gripping means are carried.

31. In a paper bag machine, the combination with two non-contacting rolls 67 and (38 between which the tucked tubing passes selfactuating side grippers 88 mounted to rotate with said rolls and having gripping ends whereby they grip the tubing to the rolls, cutting means for cutting through all the plies of the tubing, except an uncut connection between the bag lengths, and gripping means also mounted on the' rolls lo cated forward of the cutting knife and acting to put tension on the paper.

32. In a paper bag machine. the combination with two non-contacting rolls 67 and 68 between which the tucked tubing passes, self-actuating side grippers 88 mounted to rotate with said rolls and having "r'ppiug ends whereby they grip the tul to the rolls, cutting means for cutting tut-cough all the plies of the tubing, except an uncut connection between the bag lengths, a bending blade, as 100, also carried by one of said rolls, and gripping means also mounted on the rolls located forward of the cutting knife and acting to put tension on the paper.

In a paper bag machine, means against which to grip tucked tubing in combination with suitably supported and rotating side grippers adapted and so arranged that While rotating and contacting with each other, they project their gripping means between the tucks of the tubing and grip the tubing to the said first mentioned means, said projecting' and gripping action of the side grippers being caused by no other means than themselves.

34. In a paper bag machine, means for preparing the end of the tucked tubing for the formation of a diamond fold, comprising means for feeding the tubing, means for forming a tab in the paper, means for creasing said tab so that it will stand at an angle to the tubing and enable it to clear the cutting means by which the tubing is severed, means for severing the tubing, and means for spreading open the bottom.

ASA L. PARRISH.

\Vitnesses BESSIE B. lu'onn'raon M. U. DEMARES'I.

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