US864435A

US864435A - Paper-bag machine.

Info

Publication number: US864435A
Application number: US29720606A
Authority: US
Inventors: Charles F Smith
Original assignee: CONTINENTAL PAPER BAG Co
Current assignee: CONTINENTAL PAPER BAG Co
Priority date: 1906-01-22
Filing date: 1906-01-22
Publication date: 1907-08-27
Anticipated expiration: 1924-08-27

Description

PATENTED AUG. 27, 1907.

0. F. SMITH- PAPER BAG MACHINE. APPLICATION IILEDJAN. 22 190B.

13 SHEETS-SHEET 1.

PATENTEDA'UG. 27, 1 907.

1a SHEETS-831E113.

v 0. PjsMITH. PAPER BAG, MAGHINE.

APPLIOATION FILED JAN. 22, 1906.

Llcarlesjlfmz'tk No. 864,435. PATENTED AUG. 27, 1907.

0. F. SMITH. I

PAPER BAG MACHINE.-

APPLIOATION FILED JAN. 22, 1906.

k I 13 SHEETSSHEET 3.

lllllllllllllll ll FDJ u n n n n Dive 70 7? No. 864,435. PATENTEDAUG. 27, 1907..

' c. F. SMITH.

PAPER BAG MACHINE;

APPLIUACIION I' ILED JAN.22,1906.

1 3 SHEETS-SHEET, 4.

A #4 A v or J 4 g M W. H 4 V2 4 Q 9 M h gnaw. v 5 fi y 1 v 1 m W W W W m W. W M W m. fl. w z N 4 7/44 M H 7/.

EATENTED' AUG. 27, 1907.

. 0. F.. SMITH.

PAPER BAG'MAGHINE.

APPLICATION FILED JAN.22,1906.

l3 SHEETS-SHEET 5.

No. 864,435. I 7 PATENTED AUG, 27, 1907.

c. F. SMITH.

PAPER BAG MACHINE.

No. 864,435. PATENTED AUG. 27, 1907. v 0. F. SMITH.

- PAPER BAG MACHINE.

APPLIUATIDN FILD JAN. 22,1906.

13 SHEBTS-SHEET 7.

fizvevziar I/iii: as 36.9:

Cu. Wgm

r G. F. SMITH.

PAPER BAG MACHINE.

APPLICATION FILED um. 22, 1906.

PATENTED' AUG. 27, 1907.

1a SHEETSSHEET a.

1 135 79 r Menesses: v 673 Z Q2, a2" 66 7. 222a;

BIO/864,435. 1

o. P. SMITH.

PAPER. BAGMAGHINE. APPLIUATION PI LED JAN. #2, 190a.

PATEN'IED AUG. 27, 1907.

1a sums-sani- 9.

No. 864,435. PA'TBNTED AUG. 27, 190-1,

0. 1?. SMITH. PAPER BAG'MAGHINB.

APPLIUATIDN FILED JAR- 22, 1906.

1a snnms-$annw 1o.

. V Inventor leazrle 13' sums-suns: 12.

PATENTED AUG. 27, 1907;

'0. P. SMITH. PAPER BA'G MACHINE. APPLICATION FILED JAR. 22, 1906.

' 165- I fi'avewlf ort I CZazrZesFSmdth 9W 171 175 Wines-$86: i

No. 864,435 PAITENTED AUG. 27, 1907.

' .0. F. SMITH.

PAPER BAG MACHINE.

APPLICATION IILBD JAN. 22, 1906. l3 SHE ETSSHEET 13 I 6 Ch ciirlesljJmiZ/z 6a I 1 y .cflfforney.

UNIT D STATES PA TENT OFFICE.

TO CONTINENTAL arns .CH RLEsF. sm'rn, OF'BRIDGEPORT, CONNECTICUT, ASSIGNOR BAG COMPANY, OF RUMFORD FALLS, MAINE. A CORPORATION OFMAINE J PAPER-3A6- mnemmz.

To all whom it may concern: Be it known that 1, CHARLES F. SMITH, a citizen of the United States, residing at Bridgeport, in the county I of Fairfield and State of Connecticut, have invented new and useful Improvements in Paper-Bag for'making square-bottom paper-ba'gs-from tubular one end of the tubular blank and 8, 10, 12, 14 and 16 are all taken looking toward theaxis blanks having thereof.

My improvements relate of such a paper-bag machine as are an inwardly folded tuck in each side particularly to those parts provided to open out to fold the same into the well-known diamond form and then to fold over I thereon the rear and front flaps of the diamond to complete the bag-bottom.

In the drawings accompanying this specification is illustrated one form of .a paper-bag-rnachine embodying my improvements and therein Figure 1 is a sectional side elevation on line AA of Fig. 2 and lookingin the direction of arrow B therein. Fig. 2 is a plan view corresponding with Fig. 1. Fig. 3 is a sectional elevation on line GC of Fig. 1 looking in the direction ofarrow D Fig. 4 is a sectional elevation on line EE of Fig.1 looking in the direction of arrow F. Fig. 5 is a sectional elevation on line G-Gof Fig. 1 looking in the direction or arrow H. Figs. 6 to 17 both inclusive are a series of six pairs'of-partial plans and elevations respectively, to an enlarged scale, illus trating successive steps in the operation of my improved machine. Figs. 6 and 7-is that in which those parts will be when line l of Fig. 7 coincides with line .1 of Fig. 1. The positions-of Figs. 8 and 9 in like manner correspond-with that of line 20f Fig.1; Figs. 10 and 11 with line 3; Figs. Y12 and 13 with line 4; Figs. 14 and 15 with line 5; Figs. 16 and 17 with line 6. The plan views of Figs. 6,

of rotation of the folding-beds. Fig. 18 is a diagrammatic side elevation, from the same point of view as Fig. 1, showing the gear trains of the machine. Fig. 19 is a diagrammatic plan view looking in the direction of arrov'v-LL in Fig. 18. Fig. 20 is a sectional plan on line M- M oLFig. 1, looking in the direction of arrow N therein. Fig. .21 is a plan view on an enlarged scale of one of the turn-over-grippers. 22 is a side eleva tion corresponding with the plan of Fig. 21 and showing the grippers closed. Fig. 23 is an end view thereof. Fig. 24 is a side elevation similar to that of Fig. 22 but with the grippers open. Fig. 25 is a section on line P-P of Fig. 24 and looking. in the direction of arrow .B

therein. Figs. 26 and 27 are sectional elevations of the Specification of Letters Patent. Application filed January 22, 1906. Serial No. 297,206

positioned and operable as to be effective speed of the diamond-folding mechanism.

The relative positions of the parts in frame 10 (Fig. 3) through by means of bolts 26.

Patented

Au

27,1907.

mechanism for oscillating one of the turn-over-grippers.

The sections are taken on line K-K of Fig. 2 and look- K ing in the-direction of arrow TI The relative position of the parts in Fig. .26, is the same as tion 2 of Fig. 1. The relative positionof the parts in l0 and 11, and corresponds with position 3 of Fig. 1.

the position of those parts in Figs. Sand 9, and corresponds with posii The forming of the tucked-paper tubing and severing it into bag-blanks being no part of-my present invention, I have provided no means therefor. I It is therefore assumed that suitable bag-blanks having an inwardly l folded tuck in each side thereoi'are provided and delivered to the machine one at a time at the required i n-' tervals.

General conatru'ctiom -The mac-nine of the present improvement comprises aplurality of curved foldingbeds equally spaced on a common carrier and revoluble in one circle about acommon axis. Each folding bed is provided with diamond-folding means revoluble therewith whereby the maximum time is afforded the several operations in the formation of the diamond fold and high speed ofoperation thereby attained. Each folding-bed is also provided with its own front flapfolder whereby a further increase of speed of operation is attained. The rear flap-folding is performed by two successively operating constantly rotating folders so at the high The parts and mechanisms of the present improvement are mounted in suitable side-frames 1 0, 11. The folding-beds, which are shown as four in number, 12, 13, 14 and. 15, are mounted upon and may be formed integral with; revoluble carrier 16. Said carrier is fixed upon shaft 17 which shaft in turn. is rotatably mounted in sleev'es'lS, 19, inreaching from and fast to side'frames 10, 11 respectively; Sleeve 18 is attached to side the intermediary frame or plate 22, whereby upon the removal-of said plate an opening 23 in the side frame is exposed for the removal I without disassembling, of sleeve 18 andv the mechanism mountedjhereon and of shaft 17 and the mechanism mounted thereon. Sleeve 18 is attached to plate 22 by means of bolts 24 and plate 22 is attached to frame 10 Sleeve 19 is attached directly to side'irame 11 by means of bolts 27.. of bolts as 1600, (Figs. 6 and 7 to opposite sides of carrier 16 and revolving therewith are

cylindrical frames

20,21 for carrying the diamond-folding and other mechanisms. On

sleeves

18, 19 are-mounted several fixed cams for operating the several mechanisms revolving with carrier16. Dn'm'ng mechcm'sm.-Upon stud 28 projecting out-- Attached bymeans gzwardly from side-frame 11 is revolubly mounted pulley 29 and'to which is fixed gear 30 (Figs. 2, 18 and 19). Power may be communicated to pulley'29 by the usual belt, Gear 30 meshes with and drives folding-bed-earri er gear 7 and lower feed-roll gear '31;

Said gear 31 meshes with and drives upper-feed-rollgear 32. Arranged in suitable positions about'can'ier gear and meshing therewith are, first, main-transverse-creaser gear 8 located directly'above gear 7,- 'ironei .gear 9:.at the right side' thereof, Fig. 1B and lower down is intermediate gear 33, while below gear 7 is intermediate gear 38. Gear 33 meshes'with and drives paste-transfer gear 34 and which in turn meshes with and drives paste-pot gear 35; Said gear 33 also drives rear-flap-folder gear 37 through idle gear 36 on stud 176. Intermediate gear 38 meshes into gear 39 fixed on shaft 50 together with gears 40, "42 and 44.

-In Fig. 18'gear 39 is hidden by

gears

40, 42 and 44.

Gear 40 meshes into gear 41 on delivery-cylinder shaft 48 Gear 42 meshes into gear 43 on right hand supplemental-delivcry-roll shaft: -46, and gear 44 meshes into gear 45 on left hand supplemental-delivery-roll shaft 4" v Blank feedt'iimechanism.The bag-blanks are fed to the machine by means of a. pair of

rolls

49, 51, (Figs.

' 1 and 2) fixed to

shafts

52, 53 respectivelyand which shafts are revolubly mounted in suitable hearings in side-

frames

10, 11 The bearingsfor upper shaft 52 may be in vertically sliding boxes, 54, 55 and which of llli' folding-bod on shaft 65.

boxes are urged downwardly to cause the proper engagement of

rolls

49, 51, by means of springs as 56. After passingfrom between said rolls the bag-blank is directed to its seat on the folding-bed'by means ,of guide-finger 57. Said finger is fast on rod 58 inreaching from one of the side frames as 11. v

Diamond-fold ng mechanism.-Uncler this general title 1 will describe the folding-beds, front and sideclips thereon, supplemental-front-fingers and main:

tra'nsvcrsc-fold-clips and their respective operating means. 'Also main-transverse-fold creaser and the turu-over-grippers and their respective operating means. These parts of the diamond-folding mechanisms pertaining to the folding-beds, 12, l3, l4 and 15 and to carrier lfiare as follows. As the folding-beds \viih their appurtenances are all alike 2. description of one will suffice forall. Folding-bed 12 has a working face. conforming to the periphery of a cylinder concentric with axial shaft 17. At the forward end of said folding-bed ist-lic usual front-clip 60, Figs. 1, 2, 4 I3 and T. Said clip 60 is fast to and carried by yokei'rzuue (ll rotatably mounted at 62, ($3 at opposite sides aid yokeframe 61 hasnn inwafilly-reaching arm 64 carrying roll (if) for engagement with caiuJfi'Z. Said (ram \57 is bolted to side-clip earn 70 fixed on the inner end of sleeve 19. Frnrusclip (i0 is urgr-dlo grip the leading end'of the bag-blank lo llufolding-bed. and roll (iii is urged to i-ngzigenwnt wi1li ts (rain. by menus of the impingeis pivoted at 77 to link 78.

' one.

oscillation about the axis thereof. Am 74 has an oppositely reaching member 76 the free end of which At its lower end said link is pivoted at 79 to slide 80 mounted in guide 81 bolted at 82 to,. and revolving with cylindricaLframe 20, Fig. 4. -Said slide 80 is provided with a roll'83 for engagementwith cam 84 fixed on sleeve 18. By the means just described

arms

74, 75 and shaft 73 may be I caused to oscillatetoward and away from the foldingbed. and

fingers

71, 72 moved into and out of the mouth of the bag-blank. On thatend of shaft 73 adjacent to arm 75 is fixed arm 85. At-its freeend said arm is pivoted at 86 to link 87. At its lower end said link is pivoted at 88 to slide 89 mounted in. guide 90 bolted at 91 to and revolving with c'ylindricalframe 21. Said slide 89 is provided with a. roll 92 for engagement with cam 94 fixed on sleeve 19. By the means just described shaft 73may be caused to oscillate about its own axis to move

fingers

71, 72 down onto and up from the lower ply of the forward end of a bag-blank'on the folding-bed, in co-action with the movement of the fingers intoand outof'the of the bag-blank.

The folding beds are clips as 95, 96 on folding-bed 12, Figs. 5 and '6,' and as these clips are all alike I will describe in detail only Side-clip 95 comprises an arm 97 pivotallymounted at 98' on the side pf and below the facepf its respective folding-bed 12 and mounted in the upper end of said side-clip is the paper engaging portion 95 thereof. Arm 97 has a downwardly-extending portion 99 for engagement with spring-actuated plunger 101.

Arm 97 is also provided with a roll 102 for engagement with slotted lever 103 fast on rock-shaft 104 pivotally mounted under the folding-bed Arm 105 and lever 106 are also fixed on said shaft. Arm 105 projects inwardly and carries on its free end roll 107 for engagement with fixed cam on sleeve 19. Roll 107 and clip 95 are urged to their respective work by spring-actuated plunger 101. Side-clip 96 is mounted similarly to clip 95 and is actuated fromfroek-shaft 104 through lever 106 in engagement with roll 108 on arm 109 in which said clip 96 is mounted. Each of the folding-beds is also provided with a pair of main-transversc-fold clips, 110, 11.1 as to foldin -1061.12; Figs. 1, 2, 3, (i and 7 situated rearwardly, in the direction of travel of the folding-bed, of the side-clips. As these transversefold-elips are all alike I- will describe only one. Clip 110 is fixed to shaft 112 pivotaIly-mounted on the side of and below the face of folding-bed 1.2. Said shaft 112 has a downwardly-extending arm 113 fixed thereto for engagement with spring-actuated plunger 114. Said arm 113 is also provided with a roll 1'15 for engagement with slotted lever 116. Said lever 116 is fast to rockshaft 117 pivotally-mounted under the folding-bed. Arm 118 and lever 119 are also fixed to shaft 117. Arm 118 projects inwardly and carries on its free end roll '12] for engagement with cam 120 bolted to earn 100 fixed on sleeve 18 On the opposite side of foldingbed ]2 arm 119 for actuating clip 111 through roll 122 on arm 124 fixed to shaft 123-is clearly shown in Fig. (i.

For forming the inain transverse-crease in the bagblank and on which crease thorear portion or the diamond is folded over, creaser 125 is provided. Said (-rcaser is mounted above thc path of the folding-bed! provided with the usuail sidefolding-beds about shaft 17. 1O

. for engagement with cam 134 fixed on sleeve 19. and

-clockwise direction is imparted to arm 129 by the en- 1 of tubular shaft 127.

and is fixed on -clamp-huh 126 which is 'in turn fixed-l to shaft130', Figs. 1, 2 and 7. Eachfolding-bed may be provided with a groove thereacross, as 1270 in fold ing-bed 12, for" cooperation with main-transversecreaser 125.; A turn-over-gripper 'for the diamondfold'is disposed on each side of each of-thefolding-beds and said grippers are mounted on cylindrical-frames 20', 2 1 respectively for revolution with their respective As all of the turn-over; grippers on the right hand side of the machineare alikeand those on the other side are left hand duplicates thereof. the. description of onepair of grippers will suffice for all. One of said turn-over grippers may be found illustrated. in detail in Figsv 21 to 25 inclusive and in its relation to the rest of the machine in Figs. 1, 2, 3, 2G and 27 and in the step views Figs. 6 to 17 inclusive. Mounted for rotation in bearings 131 132 on-cylindrical-frame 21 is .tubular shaft or gripper carrier, 1.27. .At its outboard end said shaftlms fixed thereon gear 128 and between said gear and bearing 131, arm 129 is mounted for free rotation on said tubular shaft 127. Arm 129 is provided at its free end with and pinion are prevented fromendwise movement on" said pin by-the usual washer-167 and nut 168. v Pivoted permitted by slots 116' .Fastened to pinioh'163 by pin 165 and turnat 171 near the rear end of enlarged part 1580f grippershaft 138 is gripper-arm 175. said gripper-arm is perforated for engagement with cam 166; gripper arm is fixed gripper-blade 181 for coaction with gripper-blade 141 fixed in shaft 138 coacts with the upper and lower faces (Figs. 22, 24 and 25) of slot 172 to oscillate arm 175 and blade 181 toward and away from blade 141, as said cam is rotated by means of its pinion- 163, as shaft 138 is reciprocated axially in tubular shaft 127. p I Y Ironing niecham'sm.F igs. 1, 2 and 13. Fixed on shaft 190 for revolution therewith is ironing roll or segment 182. Said rolLor segmentis geared vto revolveat the same surface speed as the folding-beds and is proby a rectangular slot 172 vided for successive coaction with said folding-beds to,

previous formed diamond roll down and flatten the twoears; 'on one thereof is rotatably mounted roll 133 on the other thereof is rotatably mounted pinion 140. Internal segmental gear 135 is provided with. offset

ears

136, 137 through which by means of bolts 1360, 1370 (Fig. 8) it is attached to frame 21. Pinion 140, on one ear of arm 129 meshes on the one side with internal gear 135 andon the other side with gear 128 on tubular shaft 127. By these means when movement in a gagement of its roll 133 with cam 134, a largely increased movement in an anti-clockwise direction is imparted to gear 128 and tubiilar shaft; or gripper carrier 127. and vice versa. The dotted positions of

gripper blades

141, 181 in Figs. 26 and 27 relative to the positions of arm 129 rrspectively, clearly show this increased movement.

Mounted for endwise reciprocation within tubular shaft 127 is gripper shaft 138. To't-heinboa rd enlarged end 158 of said shaft is fixed gripper-blade 141. Sliding freely on tubular shaft 127, between bearings 1.31 and 132 is sleeve 139. Passing through the opposite walls of sleeve 139and through shaft 138-is pin 143. Tubular shaft 127 is providedwith opposite slots 144, to permit movement of pin 143 endwise in said tubular shaft whereby endwise movement'of sleeve 139 on the outside of tubular shaft 127 is transmitted to gripper shaft 138 within said tubular shaft. Endwisc movement is transmitted to sleeve 139 and thence I to shaft 138 fromcam by means of lever'146. Said lever is pivoted at 147 in frame 21 and carries at one end thereof roll 148 for engagement with said cam and at the other end thereofiis provided with yoke-arms 151., 152 for engagement through

dogs

153, 154 with fold of the'bag-blank. I y

Flap folding mechanism.-Under this general title I will describe the creasing andpasting device, the front flap-lifters, the rearflap-folders and the rear-flapretain ing finger. The usua l pasting segment 185 pr0vided with creaser-bladesl83, 184 is fixed to shaft 189 for revolution therewith (Figs. 1, 2 and 13). Said pasting-segment is geared to revolve at the same surface speed as the folding-beds. C'reaser blade 183. coacts with grooves in the folding beds, each respectively, as groove 186 in folding-bed 12, to form the crease on which the front-flap of the diamond is to be turned over. Creaser-blade 184 coac'ts with other grooves in the folding-beds, each respectively, as groove 187 in folding-bed 12 to form the crease on which the rcarflap of the "diamond is to be turned over.

sleeve 1930 and its slotted segment 1931 the position of transfer segment 192 relative to posting segment 182 may be varied. Also by means of lcnurled collar 1941 on eccentric sleeve 1940 said sleeve may be turned to vary the position of paste wheel 191 relative to transfer segment 192. Sleeve 1940 may be secured against turning by means of clamp bolt 1942. A scraper 1910 supported in arm 191.1 is provided for-wheel 191.

groove 155 in sleeve 139. Cam 150 is a fixed'cam arid is bolted at 156 to flange 157 on the hub of cam 94 fixed to sleeve 19 (Fig. 3). Theenlarged inboard end 158 of gripper shaft lSR'prnjects through slot 159 in one side To flange 161 on said enlarged end of tubular shaft 127 rack-bar 162'is bolted by means Pivotally mounted in revoluble carrier 16 beneath each. folding-bed is-a front-flap-lifter or folder, prefer ably comprising one or more L-shaped lifter-arms. 'In

the present embodiment two such lifter-arms are,

shown under each foldingbed as

arms

195, 196 mounted to turn freely on side-clip rock shaft 104 under folding:

of bolts N39. The hecth of i'ackJurr 162 are engaged by the teeth of

pinion

1,63 turning freely on stud 104 pr0--- jecting sidc-wise from end 158 of shaft 138.: Enclwise bed 12 (Figs. 1, 2.5, a, 7, 14, 15, 16, 17). Said frontflap-lifter is provided to lift and pnrtlyfnlrl up the frontflap of the diamond-fold, altercreasi-nblade 183 11,

In the free end of said- The usual paste- 7 pot 188 is supported on the frame of the machine by 75 .Gam 166 rier 16, as for instance segment-gear l97 of lifter-arm 195. For actuating said front-fiap-lifters segmentgears in engagement with the corresponding segmentgears of the lifter-arms, are provided. Said actuating segment-gears are fixed in pairs on shafts respectively in carrier 16 and one of each pair of said segment-gears is with an arm'bearing a roll for engagement U with segment-gear 197 of lifter-arm 195 is shown at 199, I

with cam 100 fined to the innerend of sleeve 18 (Figs. 1, 3, 5 and 15). i The specific segment-gear for engagement and that for engagement with segment-gear 198', of

lifterarm 196, at 200. Segment-

gears

199 and 200 are fixed to shaft 172 pivoted in the web of carrier 16. Segment-gear 199 has a rearwardly-reaching-arm 173, carrying roll 174 for engagement with cam 100, whereby through the two pairs of said segment-gears, lifter-arm:

195, 19 6.may be oscillated about shaft 104 and their free ends thrust up through apertures provided therefor'in folding-bed 12.

Fixedto shaft 177 and which shaft makes one revolution for each passing folding-bed on revoluble carrier 16,

is bracket178-havingarms 179, 180 (Figs. 1, 15 and 20). These arnis have fixed to the free ends thereof respectively rea r flap-folders- 201, 202. These folders are blade-like members having their faces curved substantially concentric with shaft 177 about which they ro- -tate. -Anns 179, '180 are separated sufficiently to pass on opposite sides respectively, in their revolution, of delivery-cylinder 210 (Figs. 1 and 20). Also said arms 179, 180 are of such length that flap-folders 20], 202 have a path of revolution adj acent to the path of revolution of the folding-beds and the gearing for driving said flap-folders is so proportioned that they travel at a lincar speed considerably in excess of the linear speed of the folding-beds. Furthermore the grooves of

cams

134, 1034 of the actuating means for oscillating the turn- (wcr-gi'ippcrs are of such contour that just prior to reaching tlll' point ofengagement of rear-

Ilapdolders

201, 202 with thebag-blank', 'said turn-ov'er-grippers are caused to start on their-return strokes from the position of Fig. 13, and to lift up the rear portion of the diamond-fold to the position of Fig. 15, whereby access for said flapfolders behind or under the rear flap of the diamond is assured. V i I Pivotally mounted and revolving with deliverycylinder 210 are one or more rear-flap retaining-fingers. In the present instance two are shown 205 204. The diameter of delivery-cylinder 210 is one half the diameter of carrier 16 measured from face toface 5f two opposite folding-beds on said carrier and therefore the mechanisms on said delivery-cylinder are in duplicate to properly react with the'quadruple set of folding-beds. As said rear-flap retaining-fingers and their operative mechanisms are duplicates of each other the description of one will suffice for both. Fin get 204 is an L shaped member pivoted at 205 in said delivery-cylinder, and has pivoted thereon roll 206 for engagement with earn 207 fixed on the inrcachi'ng sleeve 208 of rocking bracket 215. By these means as sea-13s delivery-cylinder 210 revolves in an anti-clockwise direction the free operative end of said finger 204 is caused to swing outwardly therefrom through opening, 230 in said cylinder (Fig. 15) for engagement with the partly-folded rear-flap to insure the folding of said rearflap before and therefore under the front-flap.

Delivery mechanism.-Delivery-cylinder 210, already referred to in connection with the description of the rear-flap retaining-fingers, is a relatively narrow cylinder fixed to shaft 48.

ing-bracket 215. Said bracket turns freely on shaft. 213 and whichv shaft is supported in side-

frames

10, 11 and is secured against turning therein by set screw 214. Also mounted upon said shaft are two

spring boxes

216, 217 and which boxes are secured against turning thereon by set screws as 218. Rocking-bracket 215 is provided with two ears, as 219, against which the springs, as 220, of spring-

boxes

216, 217 impinge, to urge delivery-cylinder 210 in said bracket to engagement with delivery-roll 221 on shaft 50. Saidshaft il pivotally mounted in side-

frames

10, 11. Deliverycylinder 210 is provided with two folding or ironing

beds

222, 223 diametrally disposed thereon and each of said folding or ironing-beds is provided with a frontclip as clip22 t of bed 222. Said clip is preferably bifurcated (Fig. 20) and is pivoted at 225, and has an inwardly reaching arm 226 carrying roll 227 for engageriient with cam 22S. Said roll is urged to engagement 'with'. its cam and clip 224 to its work, by the usual spring 229. Cam 228 is fixed on sleeve 209 of rockingbracket 210.

To supplement the work of delivery-cylinder 210 and to maintain that cyliuder in proper relation to delivery-roll 22l'when the cut-away

portions

231, 232 are opposite said roll 2'21

supplemental rolls

233, 234 are provided. These rolls are fixed on the inner ends of

shafts

47, 46 turning in arms 235. 236, all respectively, of rocking-bracket 215. Said supplementalrolls are driven as'heroinbefore described. A guideplate 237 supported on stud 238 inreaching from frame 11, is provided to guide the finished paper-bag as it is said cylinder and rolls 233, 234 andv delivery-roll 221, and thence out of the machine.

Opcrat'ion.-The opvnu ion of my improved paper-bag machine is as follows: The machine being started,a suitable tubular bag-blank. having an inwardly folded tuck in each side thereof is thrust. in. proper time, into the hitc ofrolls 49, 51 and thereby icd forwardly in the direction of arrow K (Fig: 1) under fingvr 57 onto one of the rotating folding-beds 1s 12. 'lhcrcupon front-(lip 60 swings dowironto grind grips the lower ply of iho mouth of the bag-blank to the fr'ilding-bcd and side-

clips

95, 96 swing inwardly and grip the lower plies of the respective side-tucks to the folding-bod (Figs. 6 and 7). Then creaser-bladc 125 revolves into coaction with groove 1270 in foldingdnid 12 and forms the maintransvcrsc-crvaso in tho bzig-blank-and thereby tempo rarily holds the blaiikdown oniothe folding-bed. While, thus held. transverse-fl)ld-

clips

110, 111 close onto the blank and grip all of the plies thereof to the folding-bod. This holding down of the bag-blank by said transverse-inld-rlips causes the upper-ply of the mouth of the bag-blank to spring upwardly from the Saidshaft is pivotally mounted in the free ends of upstanding arms 211,212 of rockcarried on delivery-cylinder 210 into the bite between formation.

fold ing-bed thus positioning said blank for the gripping of the upper plies of the side-tucks respectiyely thereof by the turnover-grippers and whereby the engagement of said turnover-grippers at the proper distance from said transverse-crease is assured. Thereupon said turnover-

grippers

141, 181 on the one side and 1401, 1801 on I the other side move inwardly over the folding-bed and grip the respective upper plies of the side tucks (Figs. 8, 9 and 26). It is further to be noted that it is the

nonoscillatable members

141 and 1401 of the turn-over grippers that enter the side tucks respectively and that. the oscillatable'

members

181 and 1801 close down onto the face of the bag-blank to grip it against said non-oscillatable members of the turnovengrippers. By this arrangement when said turnover-grippers release their hold on the completed diamond-fold the non-oscillatable members of said grippers withdraw from the sidetucks respectively, in the plane of those side tucks, whereby any disarrangcinent of the "diamond-fold is avoided. At the same time supplemental-

frontrfingers

71, 72 have started to move into the mouth of the bagblank. Continuing their inward and then downward movement said fingers '71, 72 grip the bag-blank to the folding-bed just inside or rearward of the position occupied by the front-clip and opposite those points where the diamond-fold commences. During this time the turn-o rgrippers are moving in enanti-clockwise .direction about their respective axesa's 138 and the parts are in the positions shown in Figs. 10, 11 and 27, and the diamond-fold has reached the box-shaped stage of its Said turnover-grippers Continue their anticlockwise rotation until their blades are substantially parallel with the folding-bed, and the diamond-fold completed. Just prior to the completion of the dia mond fold transverse-

foldclips

110, 111 withdraw from engagement with the bag-blank. Turnover-

grippers

141, 181 and 1401, 1801 still retain their hold on the bagblank and suppleinental-frontfingers 71. 72 arelwith drawn from the mouth of the blank. Said blank now passes under ironer 182 (Figs. 12 and 13) and thence under pastensegment 185, and creaser-

blades

183, 184 therein i'orm'the front and rear-flap creases respectively in the bag-blank.- Frontclip 60 rises and frees the front-flap just prior to the engagement of creaser 183 with the bag-blank. The tu'rn-over-grippers now rise from the fold ing-bed and rotate on their axes ashort distance in a clockwise direction thereby lifting. the rear- I flap for engagement with rear-flap-iolders 201. 202. At the same time lifter-arm 195 swings outwardly from the folding-bed and folds over the frontflap slightly more than 90 degrees from the folding bcd. .In the meantime rear-flap-

folders

201, 202 revolving at a linear speed considerably greater than that at which the bagblank is traveling, overtake and turn inwardly toward the folding-bed the rear-flap and fold it under the frontflap (Figs. 14 and 15). Just before said rear-flap-folders have finished their engagement with the rear-flap, one of the rear-flap retaining-lingers as 204 in delivery-cylinder 210 passes upwardly'Uiig. 1.5) between rear-

flapfolders

201, 202 and takes possession of said rear-flap, holding it up against the body of the diamond-fold until the front-flap has passed into engagement with one of the foldingbeds as 222 on delivery-cylinder 210. Thereby said front-flap is folded up and over the rearflap. During this operation of the rear-flap retaining- .bod. moans for finger, the tur'n-overgrippers, still niaintainingtheir lifted positions of Figs. 14, 15. release their grip on the -bagblank and withdraw from engagement therewith. In this releasing operation oi said turn-over-grippers the

oscillatable members

181, 1801 thereof lift from engagement With the bag-blank and nonoscillat'able members 14], 1401 withdraw in opposite directions in'the plane of the bag-blank, carrying the now opened

memhers

181, 1801 with them, Figs. 16, 1'7, all without disarplate 237 and between delivery-cylinder 210 and supplelnenta-l rolls 233, 234 on the one side and deliveryroll 22]. on the other side and thence out of the machine.

I claim:

1 The combination in a papor oag machine of a foldingbed. a turu-over-giippcr mounted for oscillation and reciprocation on an axis fixed relative to the foldingbed, a gripper-blade fixed ,on the turnover-gripper a second gripperblade pivotally mounted on the turn-over-gripper, means' for oscillating the pivoted g'rippei blade toward and away from the fixed gripper-blade, and means for oscillating and means for'reciprocatiug the turmovengripner.

2. In a paper-bag machine, the combination of a tubular shaft, means for oscillating said shaft, a turn-ovengripper slidably muonted therein, means to slide said turn-over gripper. a grippenblade fixed on the turnover-gripper, {1 second grippewblaie pivotally mounced'on the turn-overgrlpper and means carried on the tubular shaft for coac tion with means carried on the-turn-over-gripper to swing the pivoted gripper-blade toward and away from the fixed I gripper-blade.

- 3. The combination in a paper-bag machine of a grippercarrier, means to oscillate the same, a turnover-gripper slidably mounted thereon; means to reciprocate the turn over-gripper relative thereto, a gripper-blade fixed on the turmover-gripper, a second gripper-blade pivoted on the turn-over-grippcr. a rack mounted on the gripper carrier,

a pinion mounted on the turn-over-gripper for engagement with the rack and :1 cam fixe to the pinion for oscillating the pivoted gripperl lade relative to. the fixed gripperblade.

4.,1110 combination of a revoluble folding-bed, means for holding a lm blauk thereon. n'pair of oppositely dis posed turn-ove1'grippers mounted for oscillation and reciprocation on axes fixed relative to the folding-bed, means for oscillating the tnrn-ovcr-grippers and means for reciprocating said gripper in and out relative 'to the foldingbed, a blade fixed in each of the turn-over-grippers. a blade pivoted in each of said tllI'll-OII fll'l])[IQI' and means for oscillating-the pivoted blades toward and away from the fixed blades respectively.

In a paper- 1mg machine. the combination of a. foldingliolding a bug-blank thereon. means for forming the diamond fold on the bag-blnuk, a lifter-arm mounted below the face of the folding-bed and menus for moving said arm outwardly through in aperture in said fnlding-bed tofnld over the front flap of the diamond fold. v (3, The combination of u revolublc folding bed, means for holding :1 bag-blank thereon, means for forming the diamond fold on the hag-blank, a fron tllap-llftpr mounted below thclnce of {be foldin r-bed and means for actuating the front-flnplifter to lift and turn over the front flap of the diamond fold toward the body of the bngblank.

T. The combination of a reyolublc folding-bed, means for holding 41 bag-blank thereon. means for forming the diamond fold on the bag-blank, a front-flap-lifter pivotally mounted below the face of the folding-bed and menus for swinging the tront flap-iitter upwardly through an aper-' or holding ab'apblank thereon and means for forming the diamond told .on the bag-blank, a troht-flap-tolder under the folding-bed, means for moving the i'ront-flap-i'older mp wardli'through an aperture in the tolding-bed totnrn over the front-flap oi! the diamond told a rear-flap-tolder and means for actuating the same, a delivery-cylinder, a finger 'carried in the delivery-cylinder tor holding the rear-flap down after said rear-flap has been folded by the -rear-flap-' folder and until the trout-flap has been folded over the rear-flap, and means for actuating the finger.

9. The combination of a revoluble folding-bed, means for holding a'bag-blank thereon, a pair of oppositely disposed turnover-grippers means for actuating them for torming the diamond fold, a reai fla rtolder, means tor actuating the same and means for actuating the turn-overgi-ippers for lifting the rear portion of the diamond fold for presenting the rear-flap thereot'for the operation thereon-of'the rear-ii ap-tolder;

10. The combination of a revoluble toldingbed, means for holding a bag-blank thereon and means for forming the diamond told on the hag-blank, .a rear-fiap-folder, means fo1 '.actuating-the same, mean: for folding the trout-flap, a retaining-finger revolubly mounted and aetuatedtor coaction 'with the rear-iJap-folder for holding the rear-flap down after said rear-flap has been lolded by the rear-flapfolder. v

11. The combination ot a revoluble tolding-bed. means for holding a bag-blank thereon, means tor forming the dia En ters this disclaimer is in the following words:

Disclaimer,ltigLttersPQtent No. 864,435

v sagas tolding-bed, means to move the tront-flap-folder upwardly through an aperture in the folding-bed to turn over the front-flap of the diamond fold, a pair or rear-flap-toiders mounted for revolution about an axis parallel with the axis at revolution of the folding-bed, means to reyolve said rear-flap-f.olders a delivery-cylinder mounted [or revolution' on anaxis-parallel with the axis of revolution of the toldingdied, and said delivery-cylinder disposed partially within the circle of revolution oil the rear-flap tolders and between said folders, a retaining-finger carried in the delivery-cylinder and movable outwardly therefrom tor holding the reardlap down after said rear-flap has been Iolded by the rear-flap-foldcrs andxmeans tor actuating said remining-finger.

12. The combination 0! a tolding-bed, means for holding O'r'm Sensmssaa, JNo. .i. MURRAY.

DISCLAIMER.

-mond told on the hag-blank, a tront-fluptolder under the Q 84,435.-'-Charlea F. Smith, Bridgeport, Conm PAPER-hat} MACHINE. Patent dated August 27, 1907. Disclaimer filed December 2 1908, by the assignee.

To that claim in said Letters Patent, which i's claim'fi of said Letters liateni; and

6. The comhination "of a revoluble folding bed, means for holding a bag-blank thereon, means for forming the diamond fold on the bag blank, a." front-flaP-lifter mounted below the face of the folding-bed and means for aotuating the front-flap-lifter to lift and turn over the front flap of the diamond fold toward the bod of the bag-blank. [Ofliciol Gazette, .Deoembe'r '15, 1.908;] V I y swinging the tront flap-iitter upwardly through an aper-' or holding ab'apblank thereon and means for forming the diamond told .on the bag-blank, a troht-flap-tolder under the folding-bed, means for moving the i'ront-flap-i'older mp wardli'through an aperture in the tolding-bed totnrn over the front-flap oi! the diamond told a rear-flap-tolder and means for actuating the same, a delivery-cylinder, a finger 'carried in the delivery-cylinder tor holding the rear-flap down after said rear-flap has been folded by the -rear-flap-' folder and until the trout-flap has been folded over the rear-flap, and means for actuating the finger.

Disclaimer,ltigLttersPQtent No. 864,435

DISCLAIMER.

6. The comhination "of a revoluble folding bed, means for holding a bag-blank thereon, means for forming the diamond fold on the bag blank, a." front-flaP-lifter mounted below the face of the folding-bed and means for aotuating the front-flap-lifter to lift and turn over the front flap of the diamond fold toward the bod of the bag-blank. [Ofliciol Gazette, .Deoembe'r '15, 1.908;] V I y