US1058061A - Paper-strip folding and pressing device for box-machines. - Google Patents

Description

E. JAGENBBRG. PAPER STRIP FOLDING AND PBESSING DEVICE FOR BOX MACHINES. APPLICATION FILED no. 31, 1912.

1,058,061 Patented Apr. 8, 1913.

6 SHEETS-SHEET 1.

v E. JAGENBERG.

- PAPER STRIP FOLDING AND PRESSING DEVICE FOR BOX MACHINES.

gmrruouxon FILED no. 31, 1912.

1,058,061 Patented Apr. 8, 1913.

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FIG. 2.

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E. JAGBNBERG.

PAPER STRIP FOLDING AND PBESSING DEVICE FOR BOX MACHINES.

APPLICATION FILED DEC. 31, 1912. 1,058,06 1

Patented Apr. 8, 1913.

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r E. JAGENBERG.

PAPER BTBJP FOLDING AND PBEBBING DEVIGB FOB BOX MACHINES. Arrmoml-on FILED no. 31. 1012.

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Z In Z672 Z 07" MLZ M B. JAGBNBERG. PAPER STRIP FOLDING AND PBESSIHG DEVICE FOR BOX MACHINES.

urmoumn mum D110. a1, 1912.

Patented Apr. 8, 1913 B SHEETS-SHEET 6.

FIG. 8.

E. JAGENBERG. PAlEB STRIP FOLDING AND PBESBING DEVICE FOR BOX MACHINES.

APPLICATION FILED D110. 31, 1912.

Patented Apr. 8, 1913.

6 SHEETS-SHEET 6.

12 FIG. 10.

' UNITED STATES raginnfr OFFICE.

I EMIL JAGENBERG, OF DUSSELDORF, GERMANY.

PAIPER -STRIP FOLDING AND PRESSING DEVICE FOR 1BOX-IVIACI'IINES v i I I Specification of Letters Paten t.

Patented Apr. 8,1913.

Application filed December 31, 1912. Serial No. 739,523.

T 0 all whom it may concern:

Be itknown that I, EMIL JAonNBEnc, a citizen of the Empire of Germany, residing at Dusseldorf, in the Empire of Germany, have invented a new and useful Paper-Strip Device for Box-Machines, of which the following is a specification.

In machines for making boxes of the class described in the U. S. Patents No. 996,856

of July 4, 1911, and No. 1,016,266 of February 6, 1912, both granted to Richard Hogfeldt, boxes are made from rectangular blanks cut out squarely in the four corners, to form four sides that are scored at the junction with the bottom. The machine first turns up the sides, covers the same with 'a strip of paper, that proiects over both ends of the box, turns in such ends by means of two folding devices, andpresscs the turned in ends against the bottom and also against the inner side of the box. Such box machines present the disadvantage, that the turningup of the sides, the winding of-the paper strip around the turned-up sides and the folding of the projecting edges of the paper strip can be effected only consecutively, which results in a considerable loss of time.

' Moreover the first plunger requires to be fed forward step by step,

My invention relates to improvements in such box machines, whereby the manufacture of the boxes is accelerated and the machine is rendered ca able of making exactly shapedboxes of all sizes without air bubbles in the paper cover.

The chief improvement co'nsists'm providing the slide for sh'fting the box blank from one extreme position to the other extreme position and vice versa with two folding devices and a single cam disk for operating the two folding devices, also with box pressing devices.

Otherv improvements will be here nafter set forthand pointed out in the claims.

I will now proceed to describe my invention with reference to'thev accompanying drawings, in which-e Figure, I is an elevation of: a box. ma-

:ing to my ,1nvent1on, of thesame, Fig. 3 tion through-the line improvements accord- Fig. 2 is a'plan view is a vertical cross sec- A-B in' Fig. 2, seen in the direction of the arrows, :the slide o cupying one extreme position as shown in chine embodying the Fig 2 and parts beingfomitted, 4 is srmllar to Fig. 3, the slide. occupying the other extreme position, parts on th'e ,right of the vertical central line-of the slide being omitted to show a cam disk, Fig. 5 isfavertical sect-ion through the line: C D in Fig. 3, seen' in the directi'onof thefarrows, an upper part being shown in elevation, 6 is the elevation of anannular supporting plate with one pressing device, disposed thereon, Fig. 7 is the elevation of a square supporting piate with. Cone/slide guided thereon, Fig. 7 is a side .view' ofthe same, Fig. 8 is the elevation of a" cam disk for operating the folders, Fig. 8 is aihorizoncentral section through this cam disk, I 1g. 9 is a perspective ew ,of-a box; blank and most of a paper stripwlound around the,

same, Fig. 10 is a vertical longitudinalseo' tion on an enlarged scalegthro ugh thefirst plunger, a piston located thereima box blank on the first plunger with. a paper. strip wound around the sides ofthe b0x,.a springpressed holder and parts. carrying the'holder, Fig. 11 is a horizontal central section through the box blank with the paper. strip, the piston, two movable springepressediholders and two lateral pressing devices- .wjth parts of folders, Fig. 12.,is a vertical-section through. the box blanlcwithvtheipaper strip, the upper and lower pressingdevices and parts of folders appertaining thereto,

and Fig. 13 is a verticalsjectio-n through the box blank with "the paper strip, 1the.second plunger, an'abutment andithe upper, an lower pressing devices, Figs. 19, $11,; 12 and 13 illustrating four stages of the process of folding and pressing the paper-strip,

Similar characters 0 .reference; refer to similar parts throughout-the several views.

In Figs. 1 and 2 the machine frame pfroper is shown as consisting of a l)ase.45',; three lower standards 46, 47, l8, ;a;table 49'andj two upper standards 5.0,,51. In the two upper standards 50,'51Ia driving shaft 52 is mounted to turn, whichhas loose on a driving pulley 53 and fast a gear Wheel54. By means of a. handle 55 and a clutchbfi the gear wheel, 54:. can ,atjvill with the driving pulley f Q, U ted therefrom.v Parall l tothe dr v g s agse another shaft 57. is mou fted' mature, .jh

' on it a frame 66 and a gear wheel 64 which meshes with the above mentioned gear wheel 61. The long drum 58 has two cam grooves 67 and 68, in which .two rollers 69, 7 O on ;two levers 71, 72 respectively engage. The up I per ends of the levers 71, 72 are slotted and in' these slots engagetwo pins 73, 74 on lugs of two shackles 7 5, 76 fastened respectively .on the two concentric shafts 62, 63. ,The

solid 'shaft 62 is at the outer end rigidly connected with'apiston 43 (Fig. 10) and the hollow shaft-63 may be at the outer end rigidly connected with a first plunger 41. As is clearly shown. at Fig. 10, the first plunger, 41 has a recess, which is normally filled up by the piston 43, so that the outer faces of the plunger 41 and the piston 43 are made to normally flush. In a bracket '77 (Fig. 2) on the right upper standard 51' a rod 78 is mounted to longitudir= 1y move and carries a second plunger 44 (Big.

The rod 78 is pivotally and adjust ably connected by means of a rod 79 with aiever 80, which rocks at 81 (Fig. 2) on the left upper standard 50. The lever 80 carries a roller 82, which engages in a cam groove 83 provided in the short drum 59. It will be now seen, that the second plunger 44 is periodically reciprocated from the short drum 59 and that the long drum serves for periodically shifting the, first plunger 41 and the piston 48 independently of one another.

The parts hitherto described form parts of theboxmachine proper, which latter in its appearance certainly departs from the machines shown and described in' the, said U. S Patents Nos. 996,856 and 1,016,266 but comprises essential parts similar to those described in the said patents as far as re gards the forming of the box from a blank on the first plunger 41 and the winding of a gummed paper strip 42 around the sides of the box. I shall not further describe here the box machine proper, as it forms no part of the present invention.

. A shaft 84 parallel to 52 is mounted to turn in the two outer lower standards "46. 4S and has fast on it a drum 85, a gear wheel 86 and two juxtaposed cam disks 87, 88. As the gear wheel 86 meshes with the abovementioned gear wheel 54, it will be seen, that the shaft 84 is rotated from the driving pulley 53. The drum 85 has a cam groove 89,

in which a roller 90 on an arm 91 engages.

the two disks 26, 26 for The arm 91 is fastened on a shaft 92 mounted to rock in suitable bearings (not shown) on the underside of the table 49.

According to my invention the slide d stinct from the box machine proper and disposed on the right end of the table 49 (Figs. 1 and 2) is improved upon, and the whole paper-strip folding and pressing device is constructed as follows: A support 93 (Figs.- 1, 2, 3) .is fastened on the table 49 and comprises two parallel horizontal guides 16, 16 (Fig. 5), in which a slide 15 is mounted to reciprocate. The slide 15 has an arm 94 (Fig. 2), which is pivotally connected by means of a rod 14 withthe upper arm 95 of a bent lever 95, 96 rocking on a pin 97 fastened in the table 49; The lower arm 96 of this lever carries a roller 98 (Fig. 2),'which engages in a cam groove of the cam disk 87. The cam groove of this camv disk is so shaped as to periodically shift by means of the parts 98, 96, 95, 14 the slide 15 from one extreme position shown at Fig. 3 opposite to the first plunger 41 to the other extreme position shown at Fig. 4 opposite to the second plunger 44 and vice versa. On the outer end of the above mentioned shaft 92 is fastened an'arni 99, which is pivotally connected by means of a rod 23 passing bro-ugh an aperture 100 of'the support 93 with the lower arm 22 of a two- armed lever 22, 22 rocking at 101. The upper arm 22 carries a pin 29, which will be referred to later. The slide 15 is made in one with a cylindrical boss 102, 103, in which a spindle 24 is mounted to longitudinally move, while itis prevented from turning in the boss 102. 103 in a manner to be hereinafter explained. The spindle 24 has fastened on it two parallel disks 26, 26 and.is adapted to'travel with the slide 15 through a. horizontal slot 25 provided in the support- 93, whereby the slide is permitted to freely move. The spindle 24 is rigidly connected with an abutment 21 (Fig. 13). A rail 27 parallel with the two guides 16, 16 is fastened by means of two studs 140, 140 (Fig. 2) on the sup port 93 and is made to normally engage between the two disks 26. 26. The rail 27 has at the right end in Fig. 3 a cut 28 for permitting the two disks 26. 26 with the spindle 24 and the abutment 21 to longitudinally move after the pin 29 has engaged between the extreme position of the slide 15'shown at Fig. 4. Of course when during the stroke of the slide 15 from right to left in Fig. 3 the two disks 26, 26 move off the pin 29. they will be no longer shifted by the pin but engage the rail 27 and will be thereby prevented from endwise motion. while the two- armed lever 22, 22 is permitted to freely rock under the action of the cam groove 89 in the drum 85. Then the abutment 21 will simply lean against the outer end of the boss 102, 103.

screwed. Two of these On the cylindrical boss 102, 103 of the slide 15 (Fig. 5) a toothed segment 11 (Fig.

4) is mounted to turn, which meshes with a horlzontal rack 10. The rack 10 is longitudinally movable and is guided by two rollers 104, 104 disposed on the support 93 and engaging 1n the two slots 105 of the rack. The rack 10 has on the inner side two lugs 10*, 10 between which engages the rounded head of an upper arm 12 fastened on a shaft 106 rocking in the support 93. At the outer end of the shaft 106 is fastened an arm 12 (Figs. 1, 2, 3, 5) carrying a roller 12", which engages in a cam groove 107 (Fig. 3) of the cam disk 88 for producing certain effects to be explained. later.

On the boss'102, 103 is fastened a square supporting plate 5 (Figs. 7 and 7 which has four radial slots 108, 108 and two holes 109,109. On both sides of each slot 108 is disposed a pair of guides 110, 110 on the plate 5- for a slide 6, which is made in one with an arm 4 at right angles to it (Fig. 5). cam disk 9 of the shape shown at F igs. 8, 8"-:is fastened on the toothed segment 11 and is thus made to move with the latter on the inner side of the square plate 5. Each slide 6 is provided with a pin 111 (Fig. 7) carryinga roller 7, which engages through the slot 108 of the plate 5 into one of the four cam grooves 8, 8, 8, 8 of the cam disk 9. It will be understood, that when the toothed segment 11 with the cam disk 9 is turned-in one direction, say that of the arrow 112 in Fig. 8, the four slides 6 will be radially oved outward by the rollers 7, 7 in certain steps for the upper and lower slides and in other steps for the two lateral slides in accordance with the shape of the cam grooves E, 8, 8 8 \Vhen the toothed segment 11 is ymeans of the rack 10 turned in the opposite directien, of course the four slides 6, 6 will be moved inward.

An annular supporting plate of the shape shown at Fig. (3 is rigidly connected by means of four studs 1.15 (Fig. with the square supporting plate 5, the studs engaging in holes 116, 116 of the plate and in holes 117, 117 of the plate The plate 2 has eight triangular inner projections 113, 113, into which eight pins 114, 114 are pins 114. 114 engage in slots 118. 118 in two lugs 119, 119 of a plate 120 (Fig. 6) and serve for radially guiding this plate 120. There are in all four movable plates 120, 120 disposed on the plate 2, as is shown in Fig. 1n accord ance with the size and shape of the box blank 40 (Fig. 9) formed and surrounded witha gunnned paper strip in the present example a long plate 121 is rigidly connected with the upper and lower plate 12ft: (B 1g. 6). The plate 121 in turn is rigidly con nected by means of two studs 122, 122 with a cheek 1, which has the same size as one long wall of the box 40 and is lined with'felt 134 (Figs. 10, 13, 15). To each lateral plate 120, on the contrary, a block 123 (Fig. 3) is attached, the end face of which has the same s ze as one short wall of the box and is also lined with felt 135 (Fig. 11). Each plate 120 IS pressed outward by means of two helical springs 124, 124 (Fig. 6), so that the inner ends of the slots 118, 118 are in contact withthe pins 114, 114. Into each lug 119 two adjusting screws 19, 19 (Figs. 3, 4) are screwed, which are surrounded with helical springs 20, 20 and serve for guiding a small plate 18 provided with a central lug. into two of the holes 125, 125 of the plate 2 (Fig. 6) are screwed two pins 126, 126, on which two two-armed pressing levers 17, 17 are mounted to rock. The ends ofthe long arms of these levers are made to press on one arm 4 (Figs. 3 and 5) and the ends of the short arms are made to press on the lugs of the two plates 18, 18. It will he now evident, that when the arm 4 is in a manner to be hereinafter described forced outward, the arm 4 will turn the long arms of the two levers 17, 17 outward and the short arms inward, so that the check 1 is'pressed on the long wall of the box 40. The blocks 1:23, 123 on the two lateral plates 120, 120 serve as cheeks, their inner faces being adapted to press on the tiwo short walls of the box 40. On both sides lot the plates 1 20, 121 and the cheeks 1, 1 two T-shaped folders 3, 3 are disposed (Fig. 5). These folders are made from sheet metal, have suitable apertures, through which the arms 4, 4 pass, and are connected together by means of tu o plates 12?, (Fig. 5) and two screws 129, 129 (Fig. The inner parts of the folders 8, 3 slightly exceed the checks 1, l in length. The parts 1, 122, 122, 121, 120, 119, 119, 114, 114, 19, 19, 1s, 20, 20, 17, 17 (Fig. 6) form an upper or lower pressing device.

The two lateral pressing devices are slmi larly constructed and ditl -er from the upper and lower pressing devices in that the blocks 123 replace the parts 121, 12:2, 122, 1. The folders 3, 3 on each lateral pressing device differ from those on the upper and lower pressing devices in that their inner parts are shorter and only slightly exceed the blocks 123 in length. The lateral folders 3, 3" are quite flat (Fig. 11) and their inner edges are slightly rounded. The corners of the upper and ower folders 3, 3, however are slightly bent outward, as is clearly shown .11 Figs. 10, 12 and 13. In consequence of this the corners of the lateral folders 3 3 are permitted to periodically engage under the corners of he upper and lower folders 3, 3, as is clearly shown inFig. 4.

The cylindrical boss 102, 1031ofthe slide 151 Fig. 5:) provided with tworecesses 130 I 1vhiclrcorrespond with the above (Fig. 10), l mentioned holes 109, 109 111 the square supits annular end face the bottom of a box 4O against the piston 43.- A screw 132 is screwed into the bottom of each. recess 130 and a helical spring 133 surrounding the screw 132 serves for normally pressing the piston 30 outward against the head of the screw. lVhen the piston 30 strikes the bottom of the box 40, of course the helical spring 133 will be compressed, as is clearly shown in Fig. 10. It will be seen, that by means of the two pistons 30, 30 the abutment 21 and therewith the spindle 24 is prevented from turning.

The machine operates as follows: After a box 40 (Fig. 9) has been formed from a blank on the first plunger 41 (Fig. 2) and a gummed paper strip 42 has been wound around the walls of the box during one revolution of the first plunger 41, this plunger is by means of its hollow spindle 63. (Fig. 10), the parts 76, 72, 70 and the drum 58 (Fig. 1) moved forward to the right in Figs. 1 and 2, the slide 15 with all parts carried by it occupying the extreme position shown in Figs. 2 and 3. The piston 43 has of course traveled. with the first plunger 41, so that their end faces flushin with one another bear on the bottom of t e box 40 and consequently both the first plunger 41 and the piston 43 will have so introduced the box blank 40 with the gummed paper strip 42 between the two checks 1, 1 and the two blocks 123, 123, that the walls of the box 40 register with them, the four folders 3, 3,

3*, 3 having been withdrawn and occupying their outer extreme position as is shown in Figs. 3 and 10. At this moment the two arms 12 and 12" occupy their extreme osition shown in Fig. 3, so that the rac 10 occupies its extreme right position shown and the four rollers 7, 7 of the slides 6, 6

are at the ends of the four cam grooves 8, 8,

- 8, 8 as is shown in Fig. 8. A slight clearance should be left between the paper strip to the 42 and the felts 134,- 134, 1 35, 135, as is shown in Figs. 10 to 12. The two pistons 30, 30 (Fig. 11) have been pushed back by the piston 43, so that the bottom of the box 40 is securely held between the two pistons 30, 30 and the piston 43 and is prevented from shifting, while the first plunger 41 is withdrawn from the box and leaves beh nd the piston 43 (Fig. 11). At the same time by means of the cam groove 107 Flg. 3) 1n the cam disk 88 and y means 0 the parts 12", 12 (Fig. 2) and 106 (Fig. '5) the arm 2 (Fi 3) is turned throughasmall angle Fft and by means of the toothed segment ll-rolling on the-rack IOthe'cam disk 9 (Fig. 8); is turned through .a small angle in the direction of the arrow 112 in F ig. 8, so that the two rollers 7, 7 in the inner cam grooves 8 8 move through a small distance inward,that is into say the middle of the first inner portions of the inner cam grooves 8 8 which are eccentric to the spindle 24 (Fig. In consequence of this the inner edges of the two pairs of lateral folders 3, 3 have struck the paper strip 42 and folded the lateral edges of the paper strip 42 through an angle of say 45 as is shown in Fig. 11. Thereby the box 40 is prevented from shifting during the withdrawal of the piston 43 now taking place, while the two pistons 30, 30 still bear against the bottom of the box 40. The arm 12 continues its motion until the two rollers 7, 7 engage in the first nips of the two inner cam grooves 8*, 8", when the arm 12 stops. In consequence of the shape of the inner portions of the cam grooves 8, '8 the lateral folders 3' 3 have been moved quite inward and folded the lateral edges of the paper strip 42 through an angle of 90. As the concentric portions of the outer cam grooves 8, 8 compass a larger angle than the inner eccentric portlons of the inner cam grooves 8 8 the upper and lower folders 3, 3 still occupy their outer extreme position shown in Figs. 3 and 10 and the upper and lower edges of the paper strip 42 remain unfolded (Fig. 11). 'Now by means of the parts 98, 96, 95, 14, 94 (Fig. 2) the slide 15 is moved from its extreme position shown in Figs. 2 and 3 to the other extreme position shown in Fig. 4, so that the toothed segment 11 rolling on the rack 10 is together with the cam disk 9 (Fig. 8) turned to the right in the direction of the arrow 112 in Fig.8 and the four rollers 7, 7 have n oved through the cam grooves 8, 8, 8, 8 quite to the second nips of these grooves. From an examination of Fig. 8 it will be evident, that during the motion of the slide 15 the lateral folders 3, 3 first withdraw and nearly uncover the lateral .edges of the paper strip 42, before the upper and lower folders 3, 3 advance inward and fold the upper and lower edges of the paper strip 42 through an an le of 90 (Fig. 12) and then withdraw an nearly uncover the upper and lower edges. At the end of the stroke of. the slide 15 by means of the cam groove 89 in the drum 85, the parts 90, 91, 92, 99, 23, 22 (Fig. 1) the arm 22 is turned to the right in Fig. 5, so that its pin 29 now engaging between the two disks 26, 26 moves the spindle 24 forward and thereby presses by means of the abutment 21 the folded inner edges of the paper strip 42 against the bottom of the box 40, and at the same time by means of the cam groove 83 in the drum 59 (Fig. 1) and by means of the parts 82, 80, i

79, 78 (Fig. 2) the second plunger 44 has been moved forward to the right in Fig. 2,

so that this plunger engages in the box 40 L strip 42 inward.

andfolds all the outer edges of the paper As the second plunger 14 exactly fits the finished box, it will be understood, that the outer edges of the paper strip 42 are now in contact with the inside of the box blank.- During the motion of the four rollers 7, 7 through the outereccentric portions of the cam grooves 8, 8, 8 8 the four arms 1, 4 striking the long arms of the levers 17, 17 and moving them outward cause the short arms to press by means of the lugs'on the small plates 18, 18, the lugs 119 on the plates 120, 120 and the upper and lower plates 121 with the studs 122 the cheeks 1, 1 and in a similar manner by means of the lateral plates 120, 120 the blocks 123, 123 against the gummed paper strip 12 on the walls of the box -10, as is shown in Fig. 13. As the finished-box is now entirely pressed on the outside and inside, all air-bubbles, if there are any. a squeezed outof the paper strip 12, so that the box is nicely finished. Then the arm 12 in Fig. 3 is turned back to the left, so that the two cheeks 1, 1 and the two blocks 1%, 123 withdraw from the walls of the box 10 now left on the second plunger 11, whereupon the latter returns to its initial position shown in Fig. 2. During the return of the second plunger 4 1 two ad justable bent strippers 136, 136 (Figs. 1, 2) disposed on the bracket 77 strike the finished box and strip it off the second plunger 14, so that the box drops on some chute (not shown) and slides down int-o some receptacle. Of course during the return of the second plunger 44 also the slide 15 with all parts carried by it is returned to the initial position shown in Fig. 2.

It is evident, that by exchanging the checks 1, 1 with the studs 122, 122 and plates 121 of the upper and lower pressing devices, also the blocks, 123, 123 of the lateral pressing devices, further the four folders 3, 3, 3, 3, the abutment 21 and the two plungers 11, 44 for other corresponding parts the machine can be rendered fit for boxes of other sizes.

The paper-strip folding and pressing device for box machines can be varied in manv respects without departing from the spirit of my invention.

I claim:

1. In a device of the class described, a'

support, an abutment guided in said sup port, a first plunger fitting the inside of the walls of a box blank covered on the walls with a paper strip projecting from the bottom and open top of the box, a piston coaxial with said first plunger and adapted to fit the bot-tom of the box, means for simultaneously advancing said first plunger and said piston with the blank into the proximity of said abutment, means for withdrawing said first plunger, pairsO-f parallel folders radially guided on said support, one

folder of ch Emil being in the plane of the bottom and the other folder in the plane of the open top of the box, means for so advancing a part of said pairs of folders to turn a part of the strip edges through an angle while leaving space to said piston, means for withdrawing said piston, means for so advancing a part of said pairs of :t'olders as to turn a part of the s r p rimes against the bottom and the box and then withdrawi means for advancingin the other pairs of folders drawal of the first named i a :2 plunger adapted to fit the finished box, ant means for advancing said second plunger into the box so as to turn the upper strip edges against the inside of the box and then withdrawing the second plunger with the box on it.

2. In a device of the class described, a support, an abutment guided in saidsupport, a first plunger fitting the inside of the walls of a box blank covered on the walls with a paper strip projecting from the bo tom and open top of the box, a piston oaxial with said first plunger and adapted to litthe bottom of the box, means for simulta neously advancing said tirst plunger and said piston with the blank into the proxiun ity of said abutment, means for withdraw ing said first plunger, slides radially guided on said support, cheeks guided on said slides and adapted to press on the walls of the box, one side of each cheek being in the plane of the bottom and the other side in tlic'plane of the open top of the box, pairs of folders on both sides of said cheeks and rigidly connected with said slides, twoarmed levers on said support and adapted to be struck on one arm by said slides when moving outward and to move with the other arm said cheeks inward, means for so moving inward a part of said slides as to cause their folders to turn a part of the strip edges through an angle while leaving space to said piston, means for withdrawing said piston, means for so'moving inward a part of said slides as to cause their folders to turn a part of the strip edges against the bottom and the end face of the box and then withdrawing these slides with their folders, I

slides as to strike said two-armed levers and v to cause them to press said cheeks against the walls of the box, means for so much of the box, so

uiovin inward said slidesas to withdraw c eeks, and means forvwithdrawing 3531 second plunger with the box on it.

3.111 a device of the class described, a zpport having a cylindrical boss with end c, a' supporting plate fastened on the and face of said boss, a cam disk turnable mi said cylindrical boss and having cam coves and on the inner side a toothed figment, a' rack guided on said'support and @shing with said toothed segment, means r intermittently moving said rack, an Eibutment guided in said boss adapted to press on the bottom of the box, means for periodically moving said abutment, means .;for supporting and moving into the proximity of said abutment in its normal position a box blank covered on the walls with a paper strip projecting from the bottom and open top of the box, slides radially guided on said supporting plate and having gach a roller engaging through a radial slot in said supporting plate in one of the cam grooves in said cam disk, cheeks guided on =said slides and adapted to press on the walls of the box, one side of each cheek be ing in the plane of the bottom and the other side in the plane of the open top of the box, pairsof folders on both sides of said cheeks and rigidly connected'with said slides, said folders being adapted to turn the strip edges of the box,-and two-armed levers on said supporting plate adapted to be struck on one arm by said slides when moving outward and to move with the other arm said cheeks inward.

4. In a device of the class described, a support, an operating slide guided on said support and having a cylindrical boss with end face, means for periodically recip roeating saidoperating slide, a sup orting plate fastened on the end face of ti o boss of said operating slide, a cam disk turnable on said cylindrical boss and having cam grooves and on the inner side a toothed segment, a first plunger fitting a box blank covered on the walls with a paper strip projecting from the bottom and open top an abutment guided in said cylindrical boss and adapted to press on the bottom of the box, means for periodically moving said abutment, means for moving said first plunger with the box blank into the proximity of said abutment i i its normal position when said operating slide occupies its one extreme position and withdrawing the first plunger without the box blank a rack guided on said support and meshing with $Eid toothed segment, means for intermittently moving said rack, slides radially guided on said supporting plate and having each a roller engaging through a radial slot in said supporting plate in one of the 6am grooves in said cam disk, pairs of arallel folders rigidly connected with said slides and adapted to turn the upper and lower strip edges, a second plunger adapted to fit the finished box, and means for moving said second plunger into the box-when said operating slide occupies its other extreme position so' as to turn the upper strip edges against the inside of the box and then withdrawing the second plunger with the box on it. i

5. In a device of the class described, a support, an operating slide guided in said support and having a-cylindrical boss with end face, means for riodically reciprocating said operating slide, a supporting plate fastened on the end face of the boss of said operating slide, a cam disk turnable on said cylindrical boss and having cam grooves and on the inner side a toothed segment, a first plunger fitting a box blank covered onthe walls with a paper strip projecting from the bottom and open top of the box, an abutment guided in said cylindrical boss and adapted to press on the bottom of the box, means for periodically moving said abut ment, means for moving said firstplungerwith the box blank into the proximity of said abutmentin its normal position when said operating slide occupies its one extreme positionand withdrawing the first plunger without the box blank, a rack guided on said support and meshing with said toothed segment, means for intermittently moving said rack, slides radially guided on said supporting plate and having each a roller engaging through a radial slot in said supporting plate in one of the cam grooves in said cam disk, cheeks guided o'n said slides and adapted to press on the walls of the' box, one, side of each cheek being in the plane of the bottom and the other side in the plane of the open top of the box, pairs of folders on both sides of said cheeks and rigidly connected with said slides, said folders being adapted to turn the strip edges of the box, two-armed levers on said supporting plate adapted to be struck on one arm by said slides when movingoutward and to move with the other arm said cheeks inward, a second plunger, .and means for moving said second plunger into the finished box when said operating slide occupies its other extreme position and withdrawing the second plunger with the box released.

EMIL JAGENBERG. [11.5,].

\Vitnesses: v

HELEN NUFER, ALBERT NUFER.

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