US1972252A - Wrapping machine - Google Patents

Description

Sept 4, 934. l J. VAN BUREN 1,972,252

WRAPPING MACHINE -Filed June i5; 1.952l 9 sheets-sheet 1 BY XMHW TTORNEYS sept. 4, 1934. f

J. VAN BUREN 1,972,252

WRAPPING MACHINE Filed June 15, 1952 9 sheets-sheet Le n 0 g m m I [ll' ,fof .nr-- .Il

INVENTOR JOHN VHN BUBEN ATTORNEYS.

Sept. 4, 1934. J. VAN BUREN WRAPPING MACHINE Filed June l5, 1932 9 Sheets-Sheet 3 INVENTOR ./oH/v ve/v @wea/v BY l H e m ATTORNEYS Sept. 4, 1934. J. VAN BUREN WRAPPING MACHINE Filed June 15, 1932 9`Sheets-Sheet 4 INVENTOR /OH/V VHN BUN BYK.

ATTORNEYS.

Spru 4, 1934.V

J. VAN BUREN WRAPPING MACHINE Filed June l5. 1952 9 Sheets-Sheet 5 INVENTOR JOHN VHN HUREN 29 ATTORNEYS.

lSept. 4, 1934. J. v'A HUREN WRAPPING MACHINE Filed June l5. 1932 9 Sheets-Sheet 6y iNafEN'roa 10H N' WM 15b/PEN BY INVENTOR JOHN VHN BUPEN BY mi ATTORNEYS Sept. 4, 1934. J. VAN BUREN WRAPPING MACHINE Filed June 15, 1932 9 Sheets-Sheet 8 lNvENToR JOHN VHN EURE/v BY ATTORNEYS.

sept. 4, 1934s J. VAN HURENv WRAPPING MACHINE Filed June l5, i932 9 Sheets-Sheet 9 INVENToR JOHN VHN 9a/EEN 1KATTORMENL Patented Sept. 4K, 11934 1,972,252 Wanrmc MACHINE PATENT oFFlcE John Van Buren, Brooklylb N. Y. v l Application June 15, 1932, Serial No. 617,319

27 Claims.

This invention relates to wrapping machines and particularly to a machine for wrapping articles, such as cakes ofV soap, in wrappers of thin, preferably transparent material, known in the trade as cellophane.

Material such as that mentioned is very diflicult to handle in wrapping machines` sinceit is very thin and tends to slip or unwrap unless it is positivelyheld at all times. Thus, due to the characteristics mentioned the wrapper must be guided, folded and4 held much 'more carefullythan is necessary `with the ,ordinary paper wrapper. This invention has for its salient object to provide a machine adapted for wrapping articles in relatively thin material, such ascellophane, and so constructed and arranged as to fold and secure the wrapper smoothly and 'tightly around the article to be wrapped.

IFurther objects of the invention will appear from the following specification taken in connection with the drawings which form a part of this application, and in which Fig. 1 is a top plan view of the machine constructed in accordance with the invention;

Fig. 2' vis a front elevationof the machine shown in Fig. 1;

Fig. 3 'is anelevational view similar yto Fig. 2,'

but omitting the paper feeding mechanism for the purpose of showing more clearly the parts in the rear thereof;

Figui an end in Fig. 2 Alooking toward the right;

Fig. 5 is an enlarged sectional elevation illus.- trating the mechanism for feeding the cellophane paper;

Figs, 6, 7, 8, 9 and 10 are detail elevational views illustrating the mechanism for feeding the cakes through the wrapping mechanism and for jfolding and securing the wrappers around the articles, these views illustrating successively the progress of the articles through the .various partsv of the mechanism and into the discharge chute; Fig. 11, is a sectional elevation taken through the mechanism illustrated in elevation in Figs.

6 to 10 inclusiveand showing 'the plunger for feeding the cakes downwardly, the folding mech- *an'ism andthe chute for receiving the cakes therefrom' F'igll2 is a top plan view of the folding mechanisin, this view being taken in the direction of the arrows 12, 12 on Fig-.7;

Fig. 13is a sectional elevationitaken at right angles to Fig. 12 and substantially on line 13, 13 of Fig". 12;

elevation of the machine shown .folded thereover; and

Fig'. 17 is a sectional elevation illustrating a pair of pins or rollers used for holding the end flaps in -position as the cakes are fed from the folding mechanism into the discharge ilapandtl'eother aps are folded thereover. y f

The invention briefly described consists of Va machine for wrapping cellophane wrappers around articles, such as cakes of.soap. rPrior to applying the cellophane wrappers the cakes are wrapped in paper, these wrappers, however, not being secured or glued. The cakes are fed from a suitable hopper or chute andithe cellophane wrapper is i'ed into the path oiethe wrapped cakes. The wrapper is then folded around the wrapped cake in a plurality of stages or separate operations, suitable means being provided at each stage to hold the portions or flaps of the wrapper tightly in position to prevent any unwrapping thereof.

In carrying out the various feeding and folding operations the wrapped cakes are fed downwardly while partially surroudedfand held by a casing which prevents the wrapper from unfolding and are thereafter discharged from this casing with the cellophane wrapper into a vertical guideway. After the articles and wrappers have been placed in the guideway the freeedges of the wrapper are folded over one side ofithe cake, one within the other, and the outer edge is secured to the inner edge.` The bottom end tucks are formed in the wrapper when the wrapper and cake are fed intov the guideway and thereafter the upper end tucks are formed and the end flaps are folded one over the other andv secured. As above stated, suitable means. is provided at-the various stages in the folding operations to prevent loosening or 'unfolding of folds already made during the completion oifl the WlDDiIlE.

Further details of the invention will appear from the following description.

In the particular embodiment of the invention illustrated in the drawings the' machine comprises a plurality of mechanisms, namely, means for feeding and severing the cellophane wrapper material, means for feeding the wrapped articles and cellophane wrappers into the folding mechanism,

means for forming the folds and securing the wrapper around the article, and means for discharging the wrapped article into the discharge guideway or chute.

Cellophane feeding and cutting mechanism This mechanism is illustrated particularly in Figs. 1, 4 and 5. 'Ihe strip Spf moisture proof cellophane material is preferably provided in the form of a supply roll 20 and is led from the roll 20 between a' pair of feed rolls 21 and 22. 'Ihe strip then passes around an idler roll 23 and between a feed roll 24 and the roll 22. The strip is then led downwardly around a roller 25 which is carried by a pair of arms 26 mounted ona ilxed pivot 27. A rod 28 and a weight 29 are suspended from a tie 'rod 30 carried by the arms 26.

.From the roller 25 the strip isled upwardly and passes between a pair of feed rolls 31 and 32 which are intermittently operated in amanner hereinafter described.

The main drive shaft of the machine 'which is driven from any suitable source of power is shown at D. The shaft D is connected to a shaft 33 by beveled gearing 34, 35. The shaft 33 carries a gear 36 which meshes with a gear 37 mounted on a shaft l38 to which the roll 22 is secured. A

-gear 39 on the shaft 38 me'shes with a gear 40 mounted on the shaft 41 which carries the roll 21. The roll 24 is carried by a shaft 42 which in tiu'n is carried byarms 43 pivoted at 44 and actuated or pulled upwardly by a spring 45, thus maintaining the rolls 24 and 22 in contact.

. As above` stated, the rolls 31 and 32 are driven intermittently. The shaft 33 has secured thereto a gear on one face of which is secured a lug 51. 'I'he gear 50 is arranged to mesh with an interrupted gear 52 mounted on an idler shaft 53 to which is also secured a star wheel 54. 'Ihe f star wheel isA disposed in the path of rotation of the lug 51 and as the shaft 33 and gear 50 are rotated,'the.shaft 53 will be rotated one-quarter of a revolution for each revolution of the shaft 33.

` When the lug 51 engages the star wheel the wheel vwill be rotated bringing the gear teeth 50 into mesh with one of the toothed sections of the gear 52. Theshaft 53 also has secured thereto a gear 55 kwhichmeshes with a gear 56 carried by the spindle or shaft 57 of the roll 32.- The shaft 57 also has secured thereto a gear 58 which meshes with a gear 59 carried by the shaft 60 of the upper feed roll 31.

Mechanism for feeding article and wrapper into folding means -From the feed rolls 31 and 32 the wrapper is fed through a guide 61 onto a pair of ledges 62 and 63, a back stop 64 being provided for properly positioning the wrapper. AAny lsuitable cutting mechanism may be provided for severing the strip and in the form of the invention shown there is illustrated a stationary cutting blade or knife and a pivoted c utting blade 76 which'is actuated by anarm 77 to which is connected a pitman 78 having a yoke 79 at its free end suitably operated by a cam on a cam shaft F to sever the strip after the desired length has been fed to the supporting ledges 62 and 63.-

The mechanism for feeding the wrapped article and the cellophane wrapper Ainto the folding devices is shown particularly in Figs. 6 to 11 inpaper. The wrapped cakes are positioned one at a time in front of a plunger or reciprocating slide 80 which is driven in any suitable manner, as by means of a link 81 which is pivoted at 82 to the plunger and at its rear end is connected to a,

leverarm 83 carried by a shaft 84 which also carries an arm 85 to which is connected a link 86, the other end of the link being pivotal'ly connected at 87 to an eccentric 88 driven in any suitable manner.

From the foregoing description it will be understood that-the slide or plunger 80 is periodically reciprocated and feeds wrapped cakes one at a time into the feeding mechanism by which they are fed with the wrapper 'intb the folding mechanism.

The wrapped articles or cakes are fed by the plunger 80 into an open sided yoke or casing 90, the wrapped article being held in the yoke by means of a spring pressed plate 91' and being properly positioned therein by an upright back stop or frame member 92.

The yoke is slidably mounted on the frame member92 and is frictionally carried by a post 93 to which it is carried by a set screw 94, the set screw being adjusted to frictionally engage the post, but to permit relative movement between the yoke and post.

The post is vertically reciprocated by means of a lever 95 which is mounted on a fixed pivot 96 and is connected -at the opposite end by 'a link 97 to a lug 98 carried by the post 93. The lever 95 is driven in any suitable manner and preferably by -fast and slow movement from a shaft 99.

The yoke 90 has mounted thereon or secured thereto a lug 100 which moves with the yoke between upper and lower fixed stops 101 and 102 as the post 93 and yoke 90 are reciprocated.

After a wrapped article or cake has been fed into the yoke 90 between the end walls thereof the post93 and yoke are moved downwardly'together or as a unit until the lug 100 carried by the yoke engages the stop 102. The yoke then stops moving and the post 93 continues to move, the

plate 103 carried thereby forces the article and wrapper into the vertical guideway ofthe wrapping mechanism.

As the yoke carrying the wrapped cake moves downwardly with the cellophane wrapper the wrapper is folded tightly around the bottom edge and faces of the cake by means of rollers 105 and 106. These rollers are carried by arms 107 and 108 which are mounted on spindles 109 and 110 to which are also secured arms lll and 112 which are connected by a link 113. The spindle 109 also carries an arm 114 which is actuated in an anticlockwise direction viewing Fig. 6 by a spring 115. The movement of the arms 114 is limited by a stop 116.

As the yoke moves downwardly with the wrapped ca ke the rollers will press the cellophane wrapper tightly around the bottom edge and the front and rear surfaces of the cake, the rollers being urged into tight contact with th wrapped article by the spring 115.

The next operation performed after the article andv wrapper have. been fed into the vertical guideway of the folding mechanism by the post or plunger 93 is to fold the free edges ofthe cellophane wrapper' around the upper edge of the cake. This is accomplished in the manner shown particularly in Figs. 8 and 9. The free edge A of the wrapper is folded to the left across the upper edge of the cake, viewing Fig. 8, by means of a positively driven roller 120 carried by a pair of arms 121 mounted on a spindle 122 which in turn is carried by a frame yoke 123. The roller 120 is provided with a friction strip 119 of rubber or like material. The spindle 122 is actuated by the spring 124 in a direction to swing the arms 121 and roller 120 downwardly, viewing Fig. 8.

'I'he roller 120 is positively driven in a clockwise direction viewing Fig. 8 by means of a shaft 125 which is connected by universal joint 126 to the roller and shaft and by universal joint 127 to a shaft 128 on which is mounted a sprocket 129 which is driven in the manner hereinafter described.

The yoke 123 is mounted on a slide 130 which is reciprocated by a link 131 pivoted to an arm 132 carried by a flxedpivot 133. The arm 132 carries a roller 134 which is actuated by a cam 135 mounted on the shaft D.

The reciprocation of the slide 130 is so timed that after the cake and cellophane wrapper have been fed into the vertical guidewayy of the folding means the slide 130 and roller 120 will be moved to the left viewing Fig. 8, thus folding one free edge of the wrapper around the upper edge of the cake. After this has been accomplished the slide 130 moves in the opposite direction, but

the positive rotation of the roller 120 holds the edge of the wrapper against the edge of the cake as the slide is retracted.

After the edge A of the wrapper has been folded the other free edge B is folded on top of the edge A by means of a slide 138 which moves to the right from4 the position shown in Fig. 7

to the position shown in Fig. 9 and is reciprocated in the manner hereinafter described.

In order that the free edge B may be secured to the edge A when these edges are folded, as shown in Fig. 9, a suitablesolvent liquid is coated on the edge B prior to the folding operation. This is accomplished by a feed pipe 140 which leads from a tank or reservoir 141 to a section 142 of the feed roll 31. In order to prevent the roller 120 from sticking to the sticky under sur' face of the free edge B the roller is corrugated or circumferentially ribbed to expose less surface to the edge B. The longitudinal rubber strip or insert 119 provides gripping surface for holding the edge 'A folded.

Tuclcina` and folding mechanism per and form tucks at the two ends of the cake extending upwardly from the bottom edge.

The tuckers 150 and 151 are carried by arms 152 and 153 which are pivoted at 154 to slides 155 and 156. A pair of plates 157 and 158 are carried by arms 159 and 160, springs 161 being interposed between the plates and the arms. The arms 159 and 160 are pivoted on the pivots `154 which are carried by the slides 155 and 156.

Each of the arms 152 and 153 has pivoted thereto at 160' a link 161 which is carried byy a lever arm 162 actuated by the cam 135 on the shaft D. The lever arm 162 is mounted on the pivot 133. As the link 161' is reciprocated by the lever and cam the tuckers 150and 151 will arms 152 and 153 aboutvtheir pivots 154 links 165 connect the pivotal connections 166 on the links 161 of the arms 152 and 153 to studs 167 carried by lugs 168 which in turn are carried by the slides 155 and 156. The links 165 are slotted, as shown at 169, to permit the limited pivotal movement of the tuckers and arms by which they are carried.

Before describing in detail the movements and operation lof the lower tuckers 150 and 151 and the cooperating parts, the means for placing the tucks at `the upper ends of the cakes will be described. The slide 138 which folds the outer free edge of the wrapper across the upper edge of the cake is carried by a block 175 slidably mounted between guides 176 and 177 and actuated from cam shaft F by lever arm 173 and link 174. The block 175 has pivoted therein a pin 178 on which is secured an arm 179 having an arcuate slot 180 formed therein within which is disposed a fixed pin 181 which in conjunction with' the slot limits the pivotal movement of the arm. A second arm 179 spaced from the first arm is also secured to the pin 178 and moves in unison therewith.

Each arm 179 carries at its outer end a tucker in a clockwise direction about the axis of the pin or spindle 178 from a position vertically above the ends of the 'cake to the position shown in Fig. 9 in which the tucker blades 182 have formed the upper end tucks in the wrapper.

After the upper and lower tucks have.been formed in the manner above described the end aps are formed, suitable solvent or adhesive is applied to one of the end flaps and thereafter the wrapped cake is discharged downwardly into the delivery chute and the outer end flaps are folded across the inner end flaps and secured thereto. These operations take" place in a plurality of stages which will now be described.

When tlieupper and lower tucks vhave been formed in the wrapper the two sets of tuckers are moved froml the position shown in Fig. 9 to the position shown in Fig. 10. During this movement the inner end flaps C are folded across the ends of the cake and against the upper and lower tucks. These folds are formed by plates 157 and 158.

The outer end flaps E are folded back in line tuckers 150 and 151.

with the endsof the cake by the lateral movement of the upper tuckers 182 and -of the lower ,4 TheflapEisshownas folded back in Fig. 10. The end flaps E when lfolded back are positioned against flanges 185 formed on plate 145.

After the end flaps have beenfolded in the manner above described the cake is pushed downwardly from the position X, shown in Fig. 10, to

thepos'ition Y. In this latter position suitable solvent is applied to the inner surfaces of the .naps Ein the following manner:

The` solvent is contained in a tank or reservoir T and is lconducted downwardly therefrom through a pipe 186, the lower end of which discharges in a cup 187 which isV carried by a pipe 188 which in turn is carried by the upper end of an arm 189 mounted on a shaft 190. The shaft.

.190 is connected by a pair of gears 191 and 192 to a shaft 193 on which is mounted an arm 194. The outer'end of the arm 194 has connected thereto a pitman 195 driven by a suitable cam on the cam shaft F. 'Ihe end of the pipe 188 is bent laterally, as shown at 196 in Figs. 13 and 15.

Means is provided for holding the end flaps C against the upper and lower tucksvat the end of the cake when` the cakeis fed downwardly from the' position X to the position Y in Fig. 10.V This means consists of a pair of rods 200 which are carried by blocks v201 mounted on pivots 202. n

The pivot pins 202 have secured the'reto lugs -203 which in turn carry pins 204 disposed in openings 205 of forks 206 mounted on the shaft 190.

Thus. as the shaft 190 is actuated to move the arms 189 in a manner to cause the ends 198 of the pipes 188 to engage or move away from the outer end flaps E vthe rods 200 will be moved toward and away from the endsk of vthe cake. When the cake is in the position shown in Fig. 10 the end flaps 'C and E are held by the plates 157 and. 158 and the upper and lower tuckers.

-When the cake is then fed from the position X to the position Y the tuckers 150 and 151 and Vplates 157 and 158 will be moved laterally away from the ends of the cake to the position shown in Fig. 14. .When the cakes have been moved'to the position Y the arms 189 will move in a clockwise direction viewing Fig. l3'to cause the discharge ends 196 of the pipes 188 to deposit the .av position in alinement with the discharge chute Z. 'As the cake is moved into the chuteby the reciprocation of a suitable plunger P the end flaps Ewill be folded across the end flaps C, thus closing and sealing the ends of the wrapper.`

In order to hold the 'end flaps C tightly against the tucks and against the ends of the cakes means is provided for engaging the end flaps when they reach the position Y shown in Fig. l0

cakes are fed into the chute Z.` This means is particularly shown ,in Fig. 17 and consists fof a pair of upright spindles 210 and 211 which are geared to a shaft 212 connected by gearing. 213

and 214 to a shaft 215. A sprocket wheel 216 is secured to and drives the shaft 215 in a manner hereinafter described. In order to prevent the wrapper from sticking to the rollers 210 and 211 when the end flaps E are folded over the end flaps C the lower portions of the spindles 210 and 211 are provided with V-shaped corrugations, as shown at 217.

The plunger P is reciproated by a pitman 220 whichY in turn is operated by a suitable cam mounted on the drive shaft D.

Any suitable driving connections for the various operating shafts may be provided, but in Fig. 3 the shafts 99 and F are driven by a chain 221 which in turn is driven by asprocket wheel 222 mounted on the shaft D. The shaft 215 is driven by a chain 228 which in turn is driven by a sprocket wheel 224 mounted on the shaft F. the chain 223 driving thesprocket 216 mounted on the shaft 215. The shaft 215 also carries a sprocket wheel 225 which is connected by a chain 226 to drive the sprocket wheel 129 and shaft 128..r

Operation The operation of the entire machine may be briefly summarized as follows: The strip` vS of cellophane material is intermittently fed into the path of Vmovement of the cakes by the operation of the feed rolls 31 and 32. When the strip has been fed in this manner the cutting blade 76 will be operated to sever the strip and the severed strip or wrapper will be supported on the ledges 82 and 83'. i

The yoke -will then be moved downwardly with thepost 93 by which it is carried, these parts moving in unison until the lug carried by the yoke engages the flied stop 102. After theyoke 90 has reached this" position the post 93 will continue the downward movement discharging the wrapped cake and wrapper into the vertical guideway of the folding mechanism, it being understood that before being wrapped 115 in the cellophane wrapper the cake or article has already been wrapped in an ordinary paper wrapper. Attention is also called to the fact that the paper wrapped on` the' cakes as they are fed into this machine from the wrapping machine -Fig. 8. In this connection attention is directed to the operation of the roller 120 which maintains the end A in tight engagement with the upper edge of the cake when the roller is be'- ing retracted or backed away and the outer edgel B is being folded against the edge A. The roller section 142 ofthe roll 31 will depositcellophane solvent on the edge B as the wrapper is fed thereby and this solvent will cause this edge to adhere to the edge A after'it has been folded across, as shown in Fig. 9. and for continuing this engagement until the" As the cake and wrapper are fed into the vertical guideway between the platesV 145 and 146, the lower ers and 151 will be disposed in the position shown in Fig. 12 and will form the lower tucks atthe ends of the cake. After the lower tucks have been formed in this manner the upper tucks will be formed by the tucker blades 182 as these blades are moved from the'150 I from the position X to the position Y, shown'in` Fig. 10, the discharge ends 196 of the conduits 188 will move inwardly to deposit the. cellophane solvent on the inner surfaces of the endl flaps E `and the cakes will thereafter be fed downwardly from the position shown at Y in Fig. into the discharge chute Z. During this last feeding of the cakes the rods 200 will engage the end flaps C and hold them against the upper and lower tucks and the ends of the cakes, or of the paper wrappers thereon. The flap C will also be held tightly folded by the rotation of the spindles 210 and 21-1.

As the wrapped cakes are discharged into the chute Z the flaps E will be folded against the flaps C and will be secured thereto. In order to firmly secure the wrapper suitable heating means is carried by the slide 138 and also at the sides of the chute Z.

What I claim is:-

1. In a wrapping machine, means for positioning a wrapper in the path of movement of an ar ticle to be wrapped, folding mechanism including a guideway, means for feeding the article and wrapper into said guideway, and positively actuated means for folding the edges of the wrapper across the upper edge of the article, one beneath the other and for holding the inner edge tightly across the article as the, outer edge is being superposed thereonand secured thereto, means for actuating said folding means across said article edge and vpositively driven means for rotatingv said fclding and holding means during its cycle of operation..

2. In a wrapping machine, means for positioninga wrapper in the path of movement of an article to be Wrapped, folding mechanism including a guideway, means for feeding the article and wrapper into said guideway, and means for fold-l ing the yedges of the wrapper across the upper edge of the article, one beneath the other and for holding'the inner edge tightly across the article as the outer edge is being superposed thereon and secured thereto, said edge holding means including a positively rotated roller.

3. In a wrapping machine, means for positioning a wrapper in the path of movement of4 an article to be wrapped, folding mechanism including a guideway, means for feeding the article and wrapper into said guideway, and means movable across the upper edge of the article for folding the edges ofthe Wrapper across the upper edge of the article, one beneath the other and for holding the inner edge tightly Aacross the article as the outer edge is being superposed thereon and secured thereto, means for moving said folding means across the end of the article and pitively driven means for-rotating said folding and hold- 'ing means during its cycle of operation.

4. In a wrapping machine, means for positioning a wrapper in the path of movement of an article to be wrapped, folding mechanism including a guideway, lmeans for feeding the article and wrapper. into said guideway, and reciprocable means movable across the upper edge of the article for folding the edges of the wrapper across the upper edge of the article, one beneath the u other and for holding the inner edge tightly across the article as the outer edge is being superposed'.

thereon and secured thereto, means for moving said folding means across the end of the article and positively driven means for rotating said folding and holding means during its cycle of `operation.

5. In a wrapping machine, means for positioning a wrapper in the path of movement of an article to be wrapped. folding mechanism including a guideway, means for feeding the article and wrapper into said guideway, `and oppositely extending tucking means movable transversely relative to the guideway for placing upper and lower,

longitudinally extending, tucks inthe wrapper at f the ends of the article when the article and wrapper are disposed inthe guideway.

6. In a wrapping machine, means for positioning a wrapper in the path of movement of an article to be wrapped, folding mechanism including a guideway, means for-feeding the article` and wrapper into said guideway, 'and oppositely extending tucking means movable laterally relative Yto the guideway for placing upper and lower, longitudinally extending, tucks in the wrapper at the ends of the article when the article and wrapper are disposedin the guideway, certain of said tucking means being also movable longitudinally of the guideway.

. 7. In a wrapping machine, means for positioning a wrapper in the path cf movement of an article to be wrapped, folding mechanism including a guideway, means for yfeeding the article and wrapper into said guideway, means for folding end flaps at one side of the article across the end of the article and for folding end flaps at the other side of the article backwardly away from the end of the article, meanspositively actuated into and out of engagement with said last iiaps for rendering the latter flaps adhesive and means for folding said flaps across the first flaps to seal the ends of the wrapper.

8. In a wrapping machine, means for positioning a wrapper in the path of movementV of an article to be wrapped, folding mechanism including a guideway, means for feeding thearti- -cle and wrapper into said guideway, means for folding end flaps 'at one side of the article-across the end of the article and for folding end flaps at the other side of the article backwardly away from the end of the article, means for rendering the latter flaps adhesive and means for foldlosv ing said flapsacross the first flaps to seal the 9. In a wrapping machine, means forpositioning a wrapper in the path of movement of an article to be wrapped, folding mechanism including a guideway, means for feeding the article and wrapper into said guideway, means for folding end aps at one side of the article across the end of the article and for folding end flaps at the other side of the article backwardly away from the end of the article, means for rendering the latter flaps adhesive and means for folding said flaps across the first flaps to seal the ends of the wrapper, and rotating means for holding said closed end flaps tightly against the ends erf the article as the other end fiaps are closed.

10. In a wrapping machine, means for posi- .tioning a wrapper in the path of movement of and wrapper-into said guideway, means for folding end naps at one side of the article across the end of the article and for folding end flaps at the other side of the article backwardly away from theend of the article, means for rendering the latter aps adhesive and means for folding said flaps across the first flaps to ,seal the ends of the wrapper, and positively driven means for holding said closed end flaps tightly against the ends of the article as the other-end flaps are closed.

11. In a wrapping machine, means for forming upper and lower end tucks in a wrapper, means for simultaneously folding end fiaps from one face :of the article across the ends of the article and folding end flaps fromlthe other face'of the article substantially at right angles to and away from said face, means for rendering said last named flaps adhesive, and means for folding the adhesive iiaps against the closed naps.

12. In awrapping machine, means for positioning a wrapper in the path of movement of an article to be wrapped, lfolding mechanism including a guideway, means forfeeding the article and wrapper into said guideway, means for folding end flaps at one side of the article across the end of the article, means for rendering the end iiaps at the other side of the article adhesive and means for folding said flaps across the first flaps to seal the ends of the wrapper, and means for holding said closed end flaps tightly against the ends of the article when the other end flap are closed.

means for simultaneously folding end flaps from one face of the article across the ends of the article and folding end flaps from the other face of the article at an angle to and away from said face, means for rendering said last named flaps adhesive, means for folding the adhesive flaps against the closed flaps, and positively driven means for holding said closed end flaps tightly against the ends of the article when the other end flaps are closed.

14. In a wrapping machine, means for rendering one edge of the wrapper adhesive, means for positioning a. wrapper in the path of movement of an article to be wrapped, folding mechanism including a guideway, means for feeding the article and wrapper in said guideway, and means for folding the edges of the wrapper across the upper edge of the article, one beneath the other and for holding the inner edge tightly across the article as the outer edge is being superposed thereon and secured thereto, means for moving said folding means across the edge of the article and positively driven means for rotating said' guideway and toward and away 4from the article.

16. In a wrapping machine, means for posi-f tioning a wrapper in the path of movement of. an article to be wrapped, folding mechanism includfor feeding a wrapper into the path of moveing a guideway, means for feeding the article and wrapper into said guideway, tucking means movablel toward and away from the article and wrapper for placing upper and lower tucks in -the wrapper at the ends of the article when the article and wrapper are disposed in the guideway and means for moving said tucking means laterally of the guideway and toward and away from the article.

17. In a wrapping machine, a guideway, means for feeding an article into the guideway, means for feeding a wrapper into the path of movement of the article as the article is fed into the guideway whereby the wrapper will be folded around one edge and two sides of the article. means for folding theends of the wrapper across the upperedge of the article, said means being reciprocatable across the upper end of the guideway, the means for folding the inner fold against the edgeof the article being rotatable in a direction to hold said fold against the article as the 'outer fold-is being made.

1B.` In a wrapping machine, a gui'deway, means for feeding an article into the guideway, means ment of the article las the article is fed into the guideway whereby the wrapper will be folded around one edge and two sides of the article, means for folding the ends of the wrapper across the upper edge of th'e article, said means comprising a pair of fold members initially disposed at opposite sides of the upper end of the .guideway. means for movingl onefold member across the upper end of the guideway w fold one end ofthe wrapper against the article, means for moving the other memberto fold the other endof the wrapper against the first end, said first fold member beingmovable back and in engagement with the iirstlfold as the second fold is made, and

means for rotating said first fold member during v edge of the article, said means comprising a pair 125 of fold .members initially disposedA at opposite sides of the upper end of the guideway, means for moving one fold member in one direction transverse to the guideway to fold one end of the wrapper across the edge of the article, means for moving the other fold member in thel opposite direction to fold the other end of the wrapper against the folded end, said first fold member being movable backwardly with the second fold member and in engagement with the folded l.end of the wrapper, and means for rotating said first fold member during its reverse movement and in a direction to hold the rst fold tight against the ar icle.

20. In a wrapping machine, means for positioning a wrapper in the path of movement of an article to be wrapped, folding mechanism including a guideway. means for feeding the article and wrapper into said guideway, tucking means comprising two sets of tuckers, one set being 145 disposed adjacent the receiving end of the guideway and the other set adjacent the other end thereof, means for moving the upper set of tuckers vtransversely of the guideway and longitudinally thereof to place tucks in one end of the wrapper, 160

being superposed thereon and secured thereto;

' and means for moving the otherl tof tuckers toward and away from the-artic! and wrapper and laterally thereof.

21. In a wrapping. machine, means fori folding a wrapper around an article, means for tucking the ends of the wrapper to form end flaps in alinement with the two sides of the article, means for folding the end naps-along. one edge of the article across the ends thereof, means for folding the other end flaps across the folded flaps, and rotatcumferential ribs or corrugations engaging thefirst folded flaps for holding said aps'tight against the ends of the article as the second flaps are folded thereacross.

23. In a wrapping machine, means for positioning a wrapper in the path of movement of an article -to be wrapped, a guideway, meansfor feeding the article and wrapper into said guideway, and -means for folding the edges of the '4 wrapper across the upper edge of the article.

one beneath the other and for holding the inner edge tightly across the article as the outer edge is being superposed thereon and secured thereto, said edge holding means including a positively rotated roller having circumferential ribs.

24. In a wrapping machine, means for positioning a wrapper in the path of movement of an article to be wrapped, a guideway, means for feeding the article and wrapper into said guidevway, and means for folding the edges of the wrap-` per across the upper edge of the article, one beneath the other and for holding the inner edge tightly across the article as the outeredge is said edge holding means .including a positively rotated roller having circumferential'ribs and l having a longitudinally extending friction strip on its outer peripheral surface.

25. In a wrapping machine, means for positioning a wrapper in the path of movement oi' an article to be wrapped, a guideway, means for feeding the article and wrapper into said guideway, and means for folding the edges of the wrapper across the upper edge of the article, one beneath the other and for holding the inner edge tightly across the article as the outer edge is being superposed thereon and secured thereto, said edge holding means including a positivelyrotated roller having a longitudinally extending friction strip on its outer peripheral surface.

26.- In a wrapping machine, means for positioning a wrapper in the 4path of movement of an article to be wrapped, a guideway, means for feedingthe article and wrapper into said guideway, and means for folding the edges of the wrapper across the upper edge of the article, one beneath the other and for holding the inner edge tightly across the article as the `outer edge is being superposed thereon and secured thereto, said edge holding means including a positively rotated,

resiliently actuated roller having circumferential ribs.

27. In a wrapping machine, means for positioning a wrapper in the path of movement of article to be wrapped. a guideway, means for feeding the artlcle and wrapper into said guideway, means for folding the'edges of the wrapper across the upper edge of the article, one beneath the other and for holding the inner edge tightly across the article as the outer edge is being superposed thereon and secured thereto, said edge holding means including a positively rotated, resiliently actuated roller having circumferential ribs, and resilient means for pressing said roller against the inner folded edge during the operation of said roller.

t JOHN VAN BUREN.

ico e

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