US635090A

US635090A - Paper-bag machine.

Info

Publication number: US635090A
Application number: US72092699A
Authority: US
Inventors: Edward E Claussen; George Mortson
Original assignee: Individual
Current assignee: Individual
Priority date: 1899-06-17
Filing date: 1899-06-17
Publication date: 1899-10-17
Anticipated expiration: 1916-10-17

Description

(No Model.)

No. 635,090. Patented Oct. I7, |899.

` E. E. CLAUSSEN G. MOBTSUN.

PAPERBAG MACHINE.

(Application led June 17, 1899A 8 Sheets-Sheet `2.

(Nc Model.)

| l ll 1 u I l MMMMMHH L J l N 1 l l l null 0 I l. a l l ."1 Il f r IJIIIII @I @NN 1 ww SPN mNN r -..L Nw NNN itil! .hun Ufo o u L Y L'nesses' E Nonrus Pnzns co.. Puuroumn. wnsuworcm n c No. 635,090, Pafented ont. I7, |899. E. E. CLUSSEN & G. MURTSN.

PAPER BAG MACHINE.

(Application filed June 17, 1899.) (No Model.) 8 Sheets-#Sheet 3.

fev.

Invenor's N0. 635,090. Patented Oct. I7, |899. E. E. CLAUSSEN & G. MRTSON.

PAPER BAG MACHINE.

` (Application filed-June 17, 1899.)

8 Sheets-Sheet 4 (No Model.)

///VW// ///////7////V7 N D2 z/ezors 2 Y L' Z'Zlzesses:

Q. CQM

No. 635,090. Patented Oct. I7, |899. E. E. CLAUSSEN & G. MORTSON.

PAPER BAG MACHINE.

v (Application led June 17, 1899.)

8 Sheets-Sheet 5,

"(No Model.)

Patented om. |7,'ls99. E. E. cLAussEN & G., MnRTsoN.

`PAPER BAG MACHINE. (Application med June 17, i899.)

(No Model.)

TH: Nonms Pcrzns co. PHoTo-Llruu, WASHINGTON. D, c,

N0. 635,090. 4 Patented Oct. I7, |899. E. E. CLAUSSEN &. G. MORTSN.

PAPER BAG MACHINE.

Application filed June 17', 1899.)

8 Shets-Sheet 7, j.

(NO Model.)

J Z'Z TN: mams PETERS m. Primo-urne.. wAsHlNnmN. u. c

No. 635,090. Patented Oct. I7, i899. E. E. CLAUSSEN & G. MORTSON.

l PAPER BAG MACHINE.

(Application flied June 17, 1899.) (Nn Model.) 8 Sheets-Sheet 8,

Elly 18.

UEITTEE STATES PATENT @Erica EDVARD E. OLAUSSEN AND GEORGE MORTSON, OF IIARTFORD CONNECTICUT.

PAPERS-BAG. MACHINE.;

SPECIFICATION forming part or Letters Patent No. 635,090, dated october 17', '1899. Application led June 17,1899 Serial No. 720,926. (No model.)

To all whom it may concer/2,:

Be it known that we, EDWARD E. CLAUS- SENV and GEORGE MoRTsoN, citizens of the United States, residing at Hartford, in the county of Hartford and State of Connecticut, have invented certain new and useful Improvemen ts in Paper-Bag Machines, of which the following is a full, clear, and exact specification.

This improvement is particularly applicable to such paper-bag machines as that shown in Letters Patent granted to Edward E. Claussen, No. 598,497, patented February 8, 1898, and also applicable to such a machine as shown in Letters Patent granted to George MortsomNo.614,l23,datedNovember15,l898; and it consists, principally,in improved mechanism for aiding the formation of the diamond when the tucked paper blank is unfolded and refolded into the diamond form.

One object of this invention is to provide a mechanism whereby the leading end of the diamond is formed at an exact predetermined position into accurate proportions, as it is obvious that any distortion or irregular formation will rapidly multiply to such an extent as to make the bag useless and perhaps stop the machine entirely.

Another object of our invention is to provide means, consisting of the ironing-plate, to press and flatten the bag by the oscillating ironing-plate upon the folding-bed and the vibrating tucker-plate.

Another object of this invention is to provide means whereby the rear flap is folded over upon the bag-bottom by a positive iechanism and at a rapid speed.

In our present invention the preferred embodiment herein shown and described in a paper-bag machine comprises in part a suitable bed orframework for supporting the various operative parts of the machine, means for drawing the tucked-paper tube into the machine, a vibrating tucker-plate provided with bevel-edged side nippers trunnioned in stationary frames and arranged to vibrate above the tubular blank in such a manner that as the bottom-forming end of the tube passes along beneath the same the beveledged side nippers swingV into the tucks of the tube and clasp and hold firmly the upper ply of the tube to the sucker-plate. Ooacting with the tucker-plate is the supplemental carrier arranged and operating below the tubular blank, which is `pivoted to the conveyerand provided with a pair of bevel-edged side clips adapted to swing into the tucks of the tube and hold the lower ply of the blank to that carrier, a front clip adapted to hold the front end of the bag to the carrier, means for starting and forming at predetermined points the front end of the diamond form, consisting of a diamond linger mounted on the front clip and adapted to swing into the bottom-forming end of the blank during the unfolding of the same and the refolding into the diamond form and adapted to swing out of operative adjustment as soon as the diamond is completed, means for flattening the diamond form on the folding-bed and the tucker-plate, means for turning the first fold over on the bag-bottom, consisting of a finger adapted to be thrustcrosswise of the foldingbed and behind the flap and to swing over the surface of the cylinder, whereby the rear flap is turned over on the bag-bottom and then returned to its normal position, and a folderblade to fold over the second nap, all as will be hereinafter described, and more particularly pointed out in the claims.

The reference-numerals herein used indicate, respectively, the same parts in the different iigures of the drawings. The arrows indicate, without further description, the direction of movement of parts. i

f In the accompanying drawings the various instrumentalities are shown in their most ad- Vantageous position, irrespective of the relativeposition which these parts may have to their respective cam-grooves, and the sameis true of all parts hereinafter mentioned, it being considered sufiicient 'for the purpose of this description to assume that the cams are properly cut to effect the various operations required at the proper times and to the required extent.

The machine as herein shown and described employs two supplemental carriers oscillating upon the cylinder; but it is obvious that one supplemental carrier or more than two Ioo a larger size of bag.

omitted in Fig. 1.

can be arranged for, or it is equally Well adapted to the machine described in the previously-cited Patent No. 614,123.

The invention will best be understood as described in connection with the drawings, in which it is illustrated, and in which- Figure 1 is a right-hand side elevation of the machine, taken on the line 1 1 of Fig. 2 and showing the paper blank gripped by the forming mechanism and at a stage where the folding is about to begin and having all the mechanisms in the rear omitted. Fig. 2 is a front elevation of what is shown in Fig. 1. Fig. 3 is a side elevation of the machine, taken on the broken line 3 3 of Fig. 2 and representing the mechanisms which were Fig. 4 is a cross-sectional rear end view of Fig. 1 on the broken line 4 4 of Fig. 1 and is shown partly in section and partly in full view. Figs. 5 and 6 are respectively fractional side and rear end views of the rear flap-folder mechanism. Figs. 7 and 8 are respectively plan and end views of a modified form of the diamond lingers and their operating mechanism. Figs. 9, 10, and 11 are respectively a plan, an end, and a side view of a modification of the diamond fin gers and their operating mechanism, showing the same in the way they are mounted, whereby they are adapted to he adjusted to Figs. 12, 13, and 14 are respectively a plan, an end, and a side view of still another modification of the diamond fingers and their actuating mechanism. Figs. 15 and 16 are respectively a plan and a side view of the last modification of the diamond fingers in operation upon the leading end of the bag-blank which may be made in our machine. Fig. 17 represents a detail front sectional view of the side clips as they are mounted to the carriers. Figs. 18 and 19 are respectively detail plan and front views of the tucker-plate and side nippers carried thereby.

The bed of the machine may be of any suitable construction to support the paper-roll and the former, which may be of any wellknown construction, to form the tucked-paper tubing, and that bed is also adapted to support on its upper surface on the right-hand side the frame 2O and on the left-hand side the frame 21, joined by the base-plate 22, and which are adapted to carry the various shafts and mechanisms.

Motion is communicated to the machine by the pulley 23 in the direction of the arrow 24, fastened upon the shaft 25, journaled crosswise in the frames 2O and 21 and which carries on the inner side of the frame 21 the gear 26, secured upon the shaft 25 and meshing into the gear 27, engaging the gear 28, fastened, respectively, on the

shafts

29 and 30, placed crosswise of the machine, and also journaled in the frames 2O and 21, and those shafts respectively carry the drawing-,rolls 31 and 32. The gear 26 also meshes into the gear 33 and that gear engages the gear 34, which are respectively fastened on the

shafts

35 and 36. The

shafts

35 and 36 respectively carry the conveyer-rolls 37 and the conveyersector 38. By the meansjust described the previously-severed bag-blank is drawn into the machine and delivered to the bottom-forming mechanisms to perform their respective functions, as will now be described.

On the inner side of the frame 21 and fastened on the shaft 25, as previously stated, is the gear 26, which meshes into the cylinder-gear 39, fastened to the cylinder-shaft 40, which is journaled crosswise to the machine in the frames 2O and 21 and the bracket 41, the latter secured to the base-plate 22. The frame 2O has a projecting bearing 2Oa and the bracket 41 has a projecting bearing 41, upon which the stationary cams are mounted for operating the various mechanisms, as will be described later. The cylinder-shaft 40 has fastened thereto the mutilated cylinder 42, having the mutilations or sector-like sections 43, into which the supplemental carriers 44 are permitted to oscillate, and the tops or supporting-surfaces of the supplemental carriers form the supplements of the mutilations of the cylinder. The normal position ofthe supplemental carriers is that position where the tops or folding-surfaces of the carriers form the continuation of the cylinder. In the drawings two of these supplemental carriers are shown (indicated by the same .nu-

meral 44) pivoted to the cylinder by the bushings 45. A downward-projecting arm 46 of the carrier 44 is adapted to engage the stationary cam 47, which is mounted on the inwardly-projecting bearing 2()n of the frame 2O and which is held in engagement with that cam by the spring 48. The cam 47 is substantially of such shape that as the supplemental carrier is caused to be carried around by the rotation of the cylinder the carrier is oscillated toward the center of the cylinder and immediately returned to its normal position. The supplemental carriers are provided, with two pairs of bevel-edged side clips 50 and 51, pivotally mounted on the

shafts

52 and 53, supported in bosses 54 and 55, which project downward and on either side of and beneath the folding surface of the supplemental carriers. The side clips 50 and 51 are held in a closed position upon the surface of the carrier by means of the spring 56 and in an open position by means of the rolls 57 and 58 acting upon the inner surfaces of the

cams

59 and 60, which are respectively mounted on the stationary bearings 2On and 41DM of the frame 20 and the bracket 41. The supplemental carrier is also provided with the narrow front clip 61, which is held on a frame 62, the general appearance IOO IIO

of which resembles a yoke, fastened on the the upper surface of the carrier.

ing of the cam 65, which operates the front clip 61, and the timing of the

cams

59 and 60, which cause to operate the side clips 50 and 51, in relation tothe rotation of the cylinder and the severing of the bag-blank is such that the fron-t clip 61 is effectively closed by the pressure of the spring as the leading end of the tube advances and holds the lower ply of the tube thereto and the side clips 50 and 5l are caused to enter between the tucks of the tube and hold the lower plies of the tucks to The cam 47, which controls the oscillation of the carrier, is of such shape that at this instant the carrier is brought toward the center of the cylinder, and thereby enables the tucks of the tube to distend and to be refolded into the diamond form.

To aid and begin the formation of the diamond fold at the exact predetermined points, we have arranged the

diamond fingers

70 and 71, as best shown in Figs. 12, 13, and 14, pivoted, respectively, on

pivots

72 and 73 on outwardlyprojecting lugs of the yokeshaped frame 62, and those studs are also provided with cam-arms 74E and 75, provided with roller projections, which engage the grooves in the arms 76 and 77. The arm 77 has a downwardly-projecting branch 78, which engages the upper surface of the stationarily-mounted cam 79, supported on the bearing 20a. A coil-spring S0 tends to draw the diamond iingers and 71 out of engagement with the bagblank, and therefore the diamond lingers are in their operative position during the time the branch 7S is in engagement with the cam 79.

The diamond' fingers are hook-shaped and the defining or working edges of the same are substantially in such a location that when in their inner position of adjustment they form an angle of substantially forty-live degrees with the longitudinal median center line of the bag-blank, as indicated in Figs. 7, 9, 12, and 15.

In the general views, as in Figs. 1, 2, and f1, We have preferably placed the cam that operates the diamond fingers outside of the cylinder, and therefore one branch of the yokeshaped frame 62 is securely held ona short shaft the outer end of which has connected thereto the cam-arm 64a, engaging the cam 65a, which is mounted on theV bearing 41a.

Above the paper-bag blank is mounted the tucker-plate 82 in

trunnions

83 and 84, sup ported in the

stationary frames

20 and 21 and capable of being vibrated by means of the pinion-sector S5, which is located on the outside of the frame 21 and securely fastened to the trunnion 84, meshing into the sector 86, which is pivoted on the stud 87, carrying the upward-extending arm 88, having a projection 89 engaging a cam-groove 90 of the cam 91, which is held on the shaft 92, and that shaft is journaled for rotation in the frames 20 and 2l. A rotary motion is communicated to the shaft 92 by the gear 93, which meshes into the cylinder-gear 39, and that gear also meshes into the gear 94, which is held on the shaft 95 and journaled in the

frames

20 and 21. The gear 94C also meshes into'the gear 96, fastened on the shaft 97, which supports the paste-roll 98, revolving in the paste-box 99 and which receives the paste from the bottle 100. The paste-box 99 is properlysupported in

studs

101 and 102, which project inwardly from the frame 21.

The vibrating tucker-plate is provided with two oppositely-disposed bevel-edged

side nippers

103 and 104, pivotally mountedon pivots 105 and 106 in the

sleeves

107 and 108, which are adapted to receive a laterally-reciprocating motion by means of the grooved flanges on the

sleeves

107 and 108, which are engaged by projections 109 of the arms 110, pivoted on the stud 111, the lower ends of which are provided with the projections 112 engaging grooves 113 in the cams 114. The bevel-edged side nippers are bell-lever shaped and extend through slots 115 in the

trunnions

83 and 84, the latter being provided with engaging

abutments

116 and 117, against which the bell-lever ends of the bevel-edged side nippers engage as the

sleeves

107 and 108 are brought to their inner adjustment, and whereby the bevel-edged side nippers are forced down upon the tucker-plate 82. The bevel-edged

side nippers

103 and 104 are thrown in open adjustment by means of the springs 118 and 119, restingin recesses formed in the sleeves when the sleeves are thrust laterally outward. The inward motion of the arms 110 thus earries'the nippers in between the tucks of the tube and also closes and presses the nippers on the tucker-plate, as clearly illustrated in Figs. 1S and 19. The center line Aof the trunnions 83 and Se coincides with a line that passes through the two intersecting points formed by the edges of the tube and the fortyve-degree edges of the nippers. The distance from the center line of the trunnions to the folding edge 822L of the er-plate 82 is substantially equal to the depth of the tucks, and that folding 4edge serves to define the primary transverse 'folding-line across the tubular blank as that IOO IIO

er-plate is vibrated, and the tubular blank is carried onward by the rotation of the cylinder. The timing of the cam-grooves 113, that effect the inward motion of the side nippers, and the timing of the cam-groove 90, which causes to vibrate the tucker-plate S2, is in relation to the rotation of the cylinder and the supplemental carriers carried thereby, with its clips, such that as the bottom- `forming end of the tube enters the folding mechanism the tube is gripped by the grip pers to the supplemental carriers and simultaneously the nippers enter the tucks and hold the upper plies of the tucks to the tuckerf plate. The supplemental carrier as it is carried along by the cylinder is then caused to swing away from the tucker-plate and simultaneously the tucker-plate is caused to vibrate at a rate of speed equal to the combined movement of the carrier and the rotation of the cylinder, and in this manner the tucks of the tube are distended and unfolded into the well-known inside triangular folds and the folding edge 82a of the tucker-plate defines the primary transverse foldin g-line across the tube and converts the tubular blank into the diamond form.

As the supplemental carrier rocks from its lowest position back to the normal position the formation of the diamond is then practically completed; but itis pressed into its final proportions by the ironing-plate 120, as will nowbe described. The ironing-plate 120 is securely held on the arm 121., which is supported by the cross-shaft 122, journaled in .complished as follows: The paste-sector 128 and crosswise to the frames 2O and 21, and

which 'carries on the outside of the frame 21 the cam-arm 123, provided with the projection 124, which engages the face of the cam 125. A The spring 126 has one end fastened to the cam-arm 123 and the other end secured to the frame 21, and thereby holds the projection 124 against the face of the cam 125, and the timing of that cam is such that when the diamond form is completed by the folding mechanism the ironing-plate 120 is brought downward and presses and flattens the diamond-formed blank into its final proportionsV upon the carrier and the tucker-plate. After the diamond form is completed the diamond fingers and 71 are withdrawn therefrom and the paste is applied by the paste-sector 128, mounted on the shaft 92, from the pastesegment 129, held on the shaft 95, which has received the paste from the paste-roll 98, which revolves in the paste-box 99.

The

gears

93, 94, and 96 are so geared in relation to the cylinder-gear 39 that the face of the paste-sector is presented to the cylinder twice to each revolution of the cylinder, and in this manner the paste is deposited upon each diamond-formed blank as it passes under the paste-sector.

The folding of the rear and front ap is achas fastened thereto two creaser-blades 130 and 131 at a distance apart measured on the circumference of the paste-,sector equal to twice the depth of the tucks, which distance also corresponds with the distance between the transverse creaser-

grooves

132 and 133, which are grooved crosswise in the supplemental carriers, the purpose of which we will describe later in connection with the Hapfolding mechanism, which we will now describe. Mounted in the frame 2Q above the cylinder-shaft is the rear nap-folder arm 134, (best shown in Figs. 5 and 6,) which is mounted on the sleeve 135, carrying on the outer side the sector-pinion 136, meshing into the sector 137, pivoted on the shaft 138, which is supported in the frame 20, and that sector has the upwardly-extending arm 139, provided with the projection 140, engaging a groove 141 in the cam 142. The rear flapfolder arm is provided on the upper side with the hub 134, serving as a bearing for the fin= ger 143, which is adapted to slide longitudinally in the hub 134m, and thereby also adapted to be placed crosswise over the surface of the cylinder. The in and outward movement of the finger 143 is accomplished by the following mechanism: The finger 143 is provided with the pin 144, projecting through a slot 134b of the hub 134% and that pin is engaged by the bifurcated arm 145, pivoted on the stud 146, which is supported on the arm 134. The lower end of the bifurcated lever-arm 145 is provided with a projection 147, engaging a groove in the collar 148, which is integral with the rod 149, which is adapted for longitudinal movement and mounted in the central opening of the sleeve 135. The outer end of the rod 149 is pivotally engaged to the arm 150, mounted on the stud 151, the downwardly-projecting arm 152 of which is provided with the projection 153, engaging a groove in the cam 154. By

the means just described the finger 143 receives a laterally in-and-outward movement crosswise to the cylinder by means of the cam 154 and its intermediate mechanisms, and also receives a vibratory motion over the surface of the cylinder by means of the camgroove 141 and its intermediate mechanism, the latter travel being indicated by the dashand-dot line 155 from the position shown in Fig. 1 to the position marked 156 of Fig. 1.

The front iiap is folded over by the mech anis'ms now to be described. Mounted in the frames 2O and 21 is the stud 157, upon which is mounted the stationary folding-plate 158, of well-known construction, and above that plate is mounted the Hap-bar 159, also held in the

frames

20 and 21 and of usual construction.

As a convenient means for folding over the front fiap, we have shown the folder-blade 160, mounted on the arm 161, supported on the shaft 162, which carries on the inner side of the frame 21 the arm 163, which is engaged by the connecting-rod 164, and which again is jointed to the cam-arm 165, pivoted on the stud 169, and that arm carries the projection 166, engaging a groove 167 in the cam 168, which issecurely fastened on the shaft 25.

The cylinder-gear 39 meshes into the gear 170, journaled on the shaft 171, and that gear engages the gear 172, securelyfastened upon thefshaft 173, meshing again into the gear 174, held on the shaft 175, and those shafts are journaled in the frames 2O and 21 and respectively carry the delivery-

rolls

176 and 177. The cylinder is provided with lugs 178, which carry the pivots 179, to which are fastened the retainers 180, the upper ends of which are substantially hook-shaped, as best shown in Figs. 1 and 4, and when the same are folded over the top of the carrier the lower surface thereof is close to the carrier,but does not press on the same, and they are substantially in that position where they are directly ahead of the creaser-groove 133. The lower ends of the retainers 180 have downwardly- IOC IIO

extending branches 181, which are adapted to engage grooves in the cams 182 and 183, which are respectively mounted on the bearings 2Oa and 41 of the frame 2O and the bracket 41.

After the diamond is completed the blank is carried onward under the paste-sector 128 and the paste delivered to the bag. The creaserblades 130 and 131 engage, respectively, with the creaser-

grooves

132 and 133, creasing the bag at substantially those positions where the fiaps are to be folded over, and the creaserblade 131 thereby causes the rear iiap to be raised from the surface of the cylinder, at which time the finger 143 is thrust behind the rear flap and immediately afterward the retainers 180 are thrust into their inner position over the bottom of the bag and in front of the flap, and as the cylinder isV carried onward the finger 143 is caused to be oscillated over the surface of the cylinder, thereby turning the rear flap against the retainers 180 down upon the bottom of the bag.

The cylinder is provided with a duplicate set of carriers and cooperating mechanism, as previously stated, which is not essential, but it is preferable on account of the enlarge ment of the cylinder' thereby obtained, which allows the use of larger cams on the sides of the cylinder, whereby easier motions are obtained to operate the various mechanisms, and whereby a greater speed of the machine is effected, and it also does not require the bag to be bent around too small a circumference.

We will now describe some modifications of mechanisms that may be applied to the hook-shaped diamond fingers without departing from the spirit and scope of our invention, and the first of those modifications is represented in Figs. 7 and 8, which permits of a lateral adjustment of the diamond iingers, whereas in Figs. 97 10, and 11 this modication is shown with the diamond ngers adjusted laterally outward to enable them to operate upon a larger size of bag. The diamond fingers and 7l are pivoted instuds 72 and 73, held in bearings 185, which are laterally adjustable on the yoke-shaped frame. The

shafts

72 and 73 are provided on their lower sides with cam-farms 186, which are adapted to engage spirally-cut cam-grooves in the cams 187, which are respectively cut right and left, so that any motionimparted thereto will effectively throw the diamond lingers 70 and 7l out of or into operative engagement. The cams 187 are fastened on the shaft 188, which is provided with the arm 189, engaging the cam 79, fastened on the bearing 41a of the bracket 41.

Another modification is represented in front and side view in Figs. 15 and 16, inwhich the narrow portion G1 of the front clip is made thick and is provided with two circular grooves adapted to receive the semicircular diamond-

fingers

70 and 71,which are provided with the studs 190 and engaged by the connecting-rod 191, jointed to the arm 192 and fastened on the shaft 193, and that shaft is provided on its outer end with the arm 194, engaging a cam 195, held on the bearing 20. The yoke-shaped front clip is provided on the left-hand side with the shaft 196,which has on its outer side the arm" 197, engaging a cam 198, which is mounted on the stationary bearing 20a. The spring 199 tends to keep the diamond ngers out of their operative position, whereas the cam 195 throws the same into their operative position. Thesprings 200 brings the front clip G1 down upon the surface of the carrier and the cam 198 tends to bring the same back outof engagement with the carriers.

The operation of the machine is as follows: The paperis taken from the roll,folded around the former, and converted into a continuous tucked-paper tube of any construction well known in the art, and guided into the bite of the drawingrolls and severed into bag-blank lengths in any well-known manner, and the severed blanks are guided into the bite of the drawing-rolls'31 and 32, which deliver the blank to the conveyer-roll and the conveyersector 38. The bottom-forming end of the tube is then guided into the bottom-forming mechanism in such a manner that the same enters between the tucker-plate 82, provided with the bevel-edged

side nippers

103 and 104, and the supplemental carrier 44, which is pivotally mounted to the cylinder 42, which is provided with the front clip 61,-the two oppositely-disposed hook-shaped

diamond fingers

70 and 71, mounted on the front clip, and the two oppositely-disposed bevel-edged side clips 50 and 51. The tube as it arrives at abou t the position as shown in Fig. 1 is clasped by the Vfront clip 61, the same being carried onward by the cylinder and effectively closed upon the surface thereof by virtue of the cam 65 and the spring 66, thus holding the lower part of the tube to the carrier. Simultaneously the side clips 50 and 51 are effectively thrust between the tucks of the tube and brought to their inner closed position, and as the cylinder continues to rotate the supplemental carrieris swung awayfrom the tuckerplate and at the same time the tucker-plate is vibrated, the folding edge forming the characteristic primary transverse folding -line across the tubular blank and unfolding and forming the well -known inside triangular folds and converting the tubular blank into the diamond form. The ironing-plate is then broughtto its lower downward position, whereby the diamond is pressed into its final proportions on the carrier andthe tuckerplate. The

side nippers

193 and 104 are then withdrawn, and directly afterward the

diamond fingers

70 and 71 are retracted and the bag-blank is carried under the paste-sector 128 to receive the paste, and to which 'are attached the creaser-blades 130 and 131, which respectively engage the transverse creasergrooves 132 and 133 and crease the blank IOO IIO

' where the edges of the completed bag are to be located and facilitate the subsequent folding operations. As the creaser-blade 131 cooperates with the creaser-groove 133 the rear end of the diamond that forms the rear flap is raised from the carrier and is immediately backed up bythe finger 143, thrust behind the flap. The retainers 180 are then brought vto their inner position of adjustment, and the finger 143 is then caused to be oscillated over the surface of the cylinder by means of the cam-groove 141 of the cam 142, thereby folding over the rear flap against the retainers upon the folded bottom of the blank. The front clip 6l is then caused to be opened to its eXtreme backward position, thereby releasing the front end of the diamond, which permits the front flap to spring outward and forward over and above the flap-bar 159 and against the folder-blade 1GO, and as at this point the folder-blade 160 is moving with the speed of the cylinder downward it engages the bagblank at that position where the creaser 130 has creased the bag-blank in its coacting creaser-groove 132 until the bag-blank is delivered between the stationary folding-plate 158 and the bar 159, into the bite of the delivery-

rolls

176 and 177, and the completed bag may then be carried away by any suitable bands into a drier to be dried and afterward bound and packed for sale and use.

Having thus fully described our invention, what we claim, and Wish to secure by Letters Patent, is-

1. The combination of a conveyer, an oscillating carrier, having its forward end pivoted to the conveyer, mechanism to oscillate the carrier upon its pivot, the front clip pivoted to the conveyer, the diamond fingers pivoted to the front clip, and devices for oooperating with the carrier during both parts of its oscillation and during its forward movement with the conveyer, to unfold a paper tube and refold it into a paper-bag blank.

2. The combination of a conveyer, an oscillating carrier pivoted to the conveyer, mechanisms to oscillate the carrier upon its pivot, the front clip mounted on the conveyer, oppositely-disposed diamond fingers mounted on the front clip, a tucker-plate vibrating upon trunnions not substantially on a line with its defining edge, all cooperating during the forward movement of the conveyer, and during both parts of the oscillation of the carrier, and during the vibration of the tuckerplate, to unfold a paper tube and to refold it into a paper-bag blank.

3. The combination of a conveyer, an oscillating carrier pivoted to the conveyer, mechanisms to oscillate the carrier upon its pivot, devices to hold the lower ply of a tucked-paper tube upon the face of the carrier, consisting of the front clip, diamond fingers mounted on the front clip, adapted to enter the bottom-forming end of the tube, and the side clips, a tucker-plate vibrating upon trunnions, devices to hold the upper ply of a tucked-paper tube against the face of the tucker-plate between the line of its trunnions and the line of its defining edge, all cooperating during the forward movement of the conveyer and during both parts of the oscillation of the carrier, and during the forward vibration of the tuoker-plate, to unfold -a tucked-paper tube and to refold it into a paper-bag blank, having inwardly-inclined triangular folds.

4. A folding-bed adapted to support one side of a paper-bag blank, the front clip mounted on that folding-bed, and adapted to swing forward and clasp the leading end of the bag-blank to the folding-bed, the oppositely-disposed diamond fingers mounted on the front clip and adapted to swing into the bag-blank into substantially that position where each of the defining edges of the diamond fingers form substantially forty-five degrees with the central longitudinal median line of the bag-blank, substantially as described.

5. A folding-bed adapted to support one side of a paper-bag blank, the front clip mounted on that folding-bed, means for effectively closing the front clip to hold the leading end of the bag-blank, the oppositelydisposed hook-shaped diamond fingers mounted on the front clip, means for vibrating the diamond fingers and for swinging the same into the bag-blank into substantially such position that each of the defining edges forms substantially forty-five degrees with the central longitudinal median line of the bag-blank.

6. A folding-bed adapted to support one side of the paper-bag blank, the front clip mounted on that folding-bed, means for effectively closing the front clip, to hold the leading end of the bag-blank, the oppositelydisposed hook-shaped diamond fingers mounted on the front clip, means for vibrating'the diamond fingers and for swinging the same into the bag-blank into substantially that position where each of the defining edges forms substantially forty-five degrees with the central longitudinal median line of the bag-blank; and means whereby those fingers may be adjusted laterally, and thereby adapting them to various sizes of bags.

IOO

IIO

7. The combination 'of the yoke-shaped fining edges ,of those diamond fingers eachv form substantially forty-five degrees with the central longitudinal median line of the bagblank, when in their operative position.

8. In a paper-bag machine,the combination of a conveyer, an oscillating carrier pivoted thereto, operating means to cause the same to oscillate and means to hold the lower part of the tubular blank thereto, consisting of the side clips, the front clip, the diamond iingers mounted on the front clip, the tuckerplate trunnioned in uprights and provided With side nippers, operating means to cause the tucker-plate to vibrate, and means to close the nippers on the tucker-plate, all parts oombined and operating to distend and unfold the tucked-paper tube and form the inside triangular folds While the carrier oscillates, the tucker-plate defining the primary transverse line across the blank and the diamond iingers forming the leading end of the diamond, the Whole operating to convert the blank into the diamond form While tlie blank is carried onward by the conveyer, substantially as described.

9. In a paper-bag machine, the combination of a conveyer, the carrier pivotally mounted thereon, operating means to cause the same to be oscillated, the front clip, the oppositely-disposed hook-shaped diamond fingers, mounted on the front clip, the two oppositelybevel-edged side clips arranged to hold the lower part of the tubular blank to the carrier, the tucker-platc trunnioned in the uprights, and provided with the side nippers, operating means to vibrate the tucker-plate, and operating means to cause the side nippers to swing down upon the tucker-plate and hold the upper part of the tubular blank, all parts combined and operating to d istend and unfold the tubular blank to form the inside triangular folds and the leading end of the diamond form by the diamond fingers While the tucker-plate defines the primary transverse folding-line across the blank, the Whole operating to convert the tucked-paper tube into the diamond form, while the same is carried onward by the conveyer, substantially as described.

10. In apaper-bag machine,the combination of the cylinder provided with the mutilations, the carrierpivotally mounted ou the cylinder, means for imparting thereto an oscillatory motion, a front clip, the oppositely-disposed hook-shaped diamond fingers mounted on the front clip, the two. oppositely-disposed bevel-ed ged side clips, the tucker-plate trunnioned in the uprights and provided with bevel-edged side nippers, operating means to vibrate the tucker-plate so that the folding edge travels with the combined movement of the cylinder and the carrier, and While the diamond fingers are in their inner position of adjustment, and while the defining edge of the tucker-plate defines the primary transverse folding-line,substantially as described.

11. In a paper-bag machine, the combination of a foldingbed, devices to hold the lower plies of a tucked-paper tube to that foldingbed, the tucker-plate cooperating with that folding-bed, devices to hold the upper plies of the tucked-paper tube to the tucker-plate, the vibrating ironing-plate to press the folded diamond into its final proportions upon the folding-bed and the tucker-plate, substantially as described.

12. A folding-bed adapted to support a paper-bag blank, a folding mechanism adapted to turn over the rear flap, consisting of the finger 143 adapted to be thrustlaterally across the folding-bed back of the rear flap and also adapted to be oscillated over the top surface of the folding-bed, and at a rate faster than kthe rotation of the cylinder, for the purpose of turning over the rear flap upon the bagbottom, substantially as described.

13. A folding-bed adapted to support a papenbag blank, a folding mechanism adapted to turn over the rear flap, consisting of the finger 143 adapted to be thrust laterally across the folding-bed back of the rear Iiap, and also adapted to be oscillated over the top surface of the folding-bed, the retainers 180 adapted to be thrust overthe bag-bottom ahead of the flap, all combined and operating substantially as described.

14. A folding-bed adapted to supportapaper-bag blank, a folding mechanism adapted to turn over the rear flap, consisting of the nger143, actuating mechanism Awhereby the finger is thrust laterally across the folding bed behind the rear iiap, means for oscillating the linger over the top surface of the folding-bed, the retainers 180, means for actuating the retainers, consistingof the stationary cams 182 and 183, all combined and operating in such a mannerthat the finger 143 is thrust behind the rear flap, and then effectively turns that flap over upon the bottom of the bag against the retainers, substantially as described.

15. The combination of the arm 134, the finger 143 supported in the arm, the sectorpinion 13G, the sector 137, the cam 142, the bifurcated arm 145, the rod 149, the arm 150 and the cam 154, all combined and operating to thrust the finger laterally across the folding-bed behind the rear flap, and then cause the same to be oscillated over the top surface of the carriers, substantially as described.

EDVARD E. CLAUSSEN. GEORGE MORTSON. Witnesses: HENRY D. MILDEBERGER, J ANETTE S. ELLsWoRTH.

IOO

IIO