US1287124A - Wrapping-machine. - Google Patents

Description

E 'L. SMITH. WRAPPING'MACHINE. APPLICATION FILED FEB. 5. I918.

Patented Dec. 10, 1918.

R M s L Y n NCM N m E. R s WZ m .T. m

. E. L.' SMITH".-

WRAPPING MACHINE; APPLICATION FILED' FEB. 5. $518.;

Patented Dec. 10, 1918.

'4 guns-sun a.

H BY E. L. SMITH.

WRAPPING MACHINE.

APPL ICATi-ON FILED FEB. 5, 1918.

1,287,124. Patented Dec. 10, 1918.

4 SHEETS-SHEET}.

' ATTORNEYS.

ELMER LOVELL SMITH, or SPRINGFIELD, MASSAGHUSETTS, ASSIGNQR To PACKAG -MACI-IINERY COMPANY, A o'oRPoaATIoN or MASSACHUSETTS.

WRAPPING-MACHINE.

Specification of Letters Patent.

Application filed February 5, 1918. Serial No. 215,485.

To all whom it may concern. 1

Be it known that I, ELMER L. SMITH, of the city of Springfield, in the county of Hampden' and State of Massachusetts, have invented certain new and useful Improvements in Wrapping-Machines, of which the following is a specification.

This invention relates to improvements in wrapping machines, and more particularly to machines wherein articles may be entirely inclosed in a sealed wrapper. f

According to one feature of the invention,

. the wrapping of the articles is entirely accomplished while the articles-are held in a single intermittently-mova'ble turret, and the folds of the several overlapping seams in the wrapper are sealed by the application of adhesive to the wrapper, while the articles are in the turret and just prior to the overlapping of one fold of the seam upon the other.

According to another feature of the in vention, means are provided to protect and I adhesive is being applied to the other extencover one each of the several pairs of w-ra-pper extensions, whlch are to be laid 1n overlapping relation against the article, while sion of 'each pair, characterized in that the adhesive is confined entirely tothe one Wrap.- per extension whereit is needed and is prevented from gumming moving parts of the machine.

According to another' feature of the invention, the articles are positioned for wrapping 1n an lntermittently-movable carrier so as to leave two wrapper extensions, which are to be laid in overlapping relation against.

one face of the article,and a folding device is provided to fold both of said extensions in thesame. direction and into the same. plane, so that adhesive may be applied to carrier, are inclosed by a wrapper havinggummed overlapped seams along one side and both ends of the articles, and ejecting means are provided, which confine both ends and sides of the articles and hold the'sev- 'eral seams from opening during the removal of the articles from the-carrier.

Patented Dec. 10, 1918.

Other features and advantages will ap- I pear in the following description and in the illustrative embodiment of the invention in the accompanying drawings, in which:

Figure l is a front elevational view of the machine, certain parts being broken awa 'Fig. 2 is a detail elevational view of shown as broken away in Fig. 1;

Fig. 3 is a. fragmentary rear elevational view of the machine, illustrating in diagrammatical form certain driving connections of the machine Fig. 4 is an enlarged fragmentary elevational view of the turret, illustrative of the,

first stage in'the wrapping operations;

Fig. 5 isasectional view taken on the line 5-5 of Fig. 4

Fig. 6 is an enlarged fragmentary elevational view of the turret and the mechanism associated therewith for effecting the second stage in the wrapping operations;

Fig. 7 is a fragmentary end elevational view taken on the line 77 of Fig. 1;

. '65 parts Fig. 8 is a perspective view showing the wrapped article as 1t appears after the sec- 0nd stage'in the wrapping operation;

Figs. 9 and 10are enlarged fragmentary viewstaken on the lines" 9'9 and 10-10,

mechanism for the third stage in the wrapping. operations;

Fig. 11 is a perspective view showing the Wrapped article as it appears at the end of the third stage in the wrapping operations;

-Fig. 12 is an enlarged elevational view of mechanism associated with the turret and functionin in the third, fourth and fifth stages in t e wrapping operations;

Fig. 113 is an elevational view of the fold- 'ing mechanism operable during the fourth stage in the wrapping operation; Fig. 14: is an elevational view of the lefthand end of the mechanism shown in Fig. 13;

" Fig. 15 is a sectional plan view thereof Fig. 16-is a cross-sectional view taken on the line 16-16. of Fig. 13; 4

Fig. 17 is an end elevational view, partly respectively, of Fig. 1 and illustrate the in section, of the gumming mechanism assothe line 19l9 of Fig. 18 and illustrative' of the delivery apparatus.

The machine, in general,-compr1ses a turret or tumble-box, which is movable step by step; means to feed wrappers and articles to be wrapped to the turret; wrapping mech-- anism arranged adjacent the turrets path to completely wrap the articles while in the turret; means to eject wrapped articles from the turret; and a delivery apparatus-to receive and convey the wrapped articles. The wrapping of the articles, which, as men- .tioned, is performed entirely whilethe articles are in the turret, is accomplished largely during the intervals of rest of the turret. The description of the machine can therefore be best accomplished by considering the several stages in the operation of the machine, of which stages there are five,

the first and last involving the feeding and ejection of the articles to and from the turret, respectively. The other three stages deal entirely with the wrapping of the'articles; and the feeding of the articles, performed in the first stage of operation, also has a function in the wrapping. Although the wrapping is accomplished largely during intervals of restof the turret, there are certain wrapping operations which are performed during the'movement of the turret inwhat may be considered transition stages between the main stages of operation or periods of rest of the turret. I

The general frame structure and main driving connections of the machine will first be described. Referring to Fig. 1, A represents a bed plate which may be suitably supported from the floor and which supports, by means of columns D a'table B and frame C, both in spaced parallel relation with the bed plate. Suitably supported from and below the latter are two spaced parallel shafts 20 and 21, upon which nearly all the operating cams are mounted. Shaft 20 is the main shaft of the machine and may be driven from any suitable source of power. Shaft 21 is dr iven from shaft 20 by the gear train 22. Mounted onthe table B and parallel with shafts 20 and 21, is a horizontal shaft 23 to which is suitably fixed a turret or tumble-box 2-1. Abovethe turret and supported in frame C is a cam shaft 25, also arranged parallel with the main driving shaft 20. Referring to'Fig. 3, the shaft 25 is driven by a chain 26, and suitable sprockets, from a stub shaft 27 which is supported from and below table B. Shaft 27 is adaptsprockets, from the cam shaft 21 described.

Each pocket 31 has a yieldable side wall whichconsists of-a plate 32 spring pressed toward the opposite side wall of the pocket. Each of the latter also has a movable bottom wall, which consists of a plunger 33 mounted to move radially of the turret in suitable guides, as clearly shown in Figs. 4 and 5. Plunger 33 is held frictionally in the various positions to which it maybe moved by a spring-pressed plug 34 mounted in a recess in the turret and arranged to engage one 'face of the plunger, as shown in Fig. 4:. On the opposite face of the plunger is a roll 35, by means of which the plunger may be moved in a manner to be described. As each pocket 31 is moved into article-re-' ceiving position,.the plunger 33 therein is positioned, as in Fig. 4 with its outer face substantially flush with the outer edges of the pocket. wardly by the feeding of the articles thereto,-leaving a pocket to receive an article and its wrapper so that the latter may be applied to one side and both ends of the articles, in amanner to be described.-

The wrapper-feeding mechanism willrbe briefly described with reference to Fig. 1. Any suitable mechanism'may be employed for this purpose, and that shown in the drawings is merely for illustrativepurposes, the invention being independent of the particular type of feeding mechanism. A supply of wrapping material a in continuous strip form is supported in a roll on arbor b from frame C. The strip a passes between guide rolls a, supported from frame C, downwardly and between a pair of feed rolls d and. thence through a suitable strip guide e to the position shown in Fig; 4. One of the feed rolls (5 is driven from a gear f rota-tably mounted on a shaft Secured to gear 7' is a ratchet wheel h, which may be The plunger is movable inintermittently driven by a pawl mounted in an end of an arm 7'' which, in turn, is loosely mounted on shaft 9. Arm j is connected by a link is to a crank Z which is fixed on one end of the shaft 25 heretofore described. It will thus be seen that a measured length of strip a may be periodically fed in front of a pocket 31 when the latter tobaccoor like articles of generally rectan-- latter and shears m have been indicated merely 'in conventional form, as they are too Well known in the art to require extended description here. Shears. m and lever n are connected by links 0 and p to levers g and r, respectively, which levers are pivoted intermediate their ends to bed A and are adapted to be operated at properly timed intervals from. suitable cams (not shown) mounted on the described shaft .20.

The articles 8 to be wrapped, as sacks of gular shape, are supplied to the machine .on thebel't t (Figs. 1 and 4), the upper lap of whlch travels horizontallyin the plane of the lower side wall of 'the wrapping pocket 31. when the latter isin,article-receiving position. The belt may be continuously driven by any suitable means (not shown), and the articles 8 are prevented from traveling with the belt beyond a predetermined point by a stop-plate u (see Fig.1)u Each article .9 when engaged with plate a is properly alined for insertion in pocket 31 and lies on the opposite side of thewrapper a from the pocket, as shown in Fig. 4.

The means for transferring articles 8 from belt 13 into the pockets 31 will now be described, and the feeding of the articles into the turret pockets constitutes the firststage.

in the operation of the machine. Referring to Fig. 1, slidably mounted on 'a' ho'rlzontal guide 36 is a plunger 37, which is connected by a link 38 toone arm of abell-cr-ank lever 39. I The latter is loosely mounted on a rod 40 rotatably supported from bed plate A. The other arm of lever 39 bears a suitable roll to ride in a path cam 41 fixed on the described shaft 20. Cam 41 is so constructed as -to normall hold plunger 37' in the retracted position i lustrated, and to ad- 7211108 the plunger and thereafter quickly retract it just prior to movement of the turret.

The plunger 37 alineswith the plunger 33 of that wrapping pocket 31 whichis in ar-- ticle-receiving position, and after the wrap pera has been fed into the position illustrated in Fig. ,4, the plunger advances, engages and moves the article a and carries it and the wrapper against the plunger 33. As the plunger 37 continuesto advance, the plunger 33 is moved radially inwardly inthe'turret against the resistanceof the spring-pressed plug 34. The article .5 is thus carried into the turret pocket while held between two plungers, and thus the wrapper a is held in fixed position with relation to the article during the insertion of the latter into the wrapping pocket. The

- article sand the folded wrapper are held in the pocket by the yieldable wall 32. In the first stage of the turret, the wrapper then is laid around the bottom and both sides of the article, leaving extenslonso andw of the wrapper beyondthe top of the article (Fig. 1) and extensions beyond both ends of the articles, as will appear. 4

The second stage in the wrapping will .tionsare accomplished in the second position of the turret from articlereceiving position. The extension 1) is laid downby-a folding blade 42 fixed to the ends of two spaced arms 43 (see also Fig. 7). Each arm 43 is clamped to a short sleeve 44 loosely mounted on a shaft 45 which is rotatably supported from frame 0., One sleeve 44 (that to the left in "Fig.7 has no function except as a bearing for its lever 43. The other sleeve 44 (that to'the right in Fig. 7) extends beyond frame C and has fixed thereto a lever 46. The latter is pivotally-connected ,to one end of an arm 47 (Fig. 3), and the other end of the arm is forked to engage the described shaft 25 as a guide. A suitable roll is provided on arm 47 to ride in a path-cam 48 fixed on the shaft 25. structed to move blade 42 into the position illustrated in Fig. 6 shortly after the turret has come-to rest and thereafter to hold it thus positioned, until the turret commences its next step of movement' The cam48-is also designed to move blade 42 inunison with-the turret, for a short distance, for a reason to appear, and thereaftergto. retract the 'blade sufficiently to permit the wrapper extensions 4) and w on a succeeding article to pass freelyinto the position shown in Fig. 6. The blade 42 therefore lays extension 1) flat against the article 8 and holds it so positioned during the performance of other operations to bedescribed. v

. .One of such operations consists in the application of a suitable adhesive to the wrapper extension w so-that the latter may be 'held to extension '0 when subsequently fold- Cam 48 is con:

ed thereupon in overlapping relation. This operation is accomplished by a roll 48 (Fig. 6) fixed on a shaft 48' rotatably supported in the walls of a glue box 49 which, in turn, is removably connected to one end of a lever 50. The latter is fixed to the described shaft 45 intermediate the ends of the latter and between the adjacent ends of the two sleeves 44 described, as indicated in Fig. 7.

Fixed to that end ofshaft opposite from lever 46 is a lever 51 (Figs. 1 and 7) which is'pivotally connected to one end of an arm 52, and the other end of the latter is forked to engage the described shaft 25 for guiding purposes. A suitable roll on arm 52 is arranged to ride in a path-cam 53 fixed on the shaft 25. Cam 53 is constructed to swing roll 48 'into the position illustrated in"Fig. 6 shortly after the blade 42 has come to rest in the position shown and to thereafter retract the roll sufficiently to permit the extensions 0 and w of the wrapper on a succeeding article 8 to freely pass thereinunder.

The roll 418 isarranged to close an opening in the lower right'hand corner of the glue box 19, and the lower wall of the latter is inclined toward the roll to cause the adhesive in the box to flow thereto; A scraper 54. is slidably mounted on the lower wall of the glue box and is adjustable to and from roll :8 by a screw to regulate the thickness of the film of adhesive formed on the roll. The latter is turned in the direction ofthearrow shown in Fig. 6, as the roll advances toward extension 10, and is held stationary during the return movement of the roll. To accomplish this result, a ratchet wheel 56 (Fig. 1) is fixed to one end of the shaft 18 and, above the ratchet and connected at 57 to frame C for a limited degree of pivotal movement, is a curved bar 58 which has ratchet teeth to engage wheel 56. On a swinging movement of lever 50 in a countercloclnvise direction. roll 48 will be turned in a like direction, but on the return movement of lever 50 the teeth on ratchet 56 cam the bar fi upwardly without turning roll 48 The latter, as lever 50 is swung in a counterclockwise direction, engages the upstanding wrapper extension to closely adjacent the top thereof and applies 'a line of till the space between those illustrated. The:

brush is suitably supported, as indicated in Figs. 1 and 12, from the bed A and table B and is preferably made. in a plurality of sections for convenient removal. The roll 60 is pivotally mounted on the upper end of the brush and is arranged to engage extension 10, on movement of the turret, just in advance of the brush. The roll 60 effectively rollsdow'n the extension w upon the extension o in overlapping relation, immediately on movement of the turret. and the blade 42, which, as described, moves in unison with the turret for a short distance, holds the extension r fiat against the article 8 until the extension to has been laid down upon it. The brush functions to hold the folded extensions in overlapping relation during the transition between the second and third stages and until the which will later appear.

mamas wrapped article has been ejected from the turret.

As the turret comes to rest in its next position, the article a is inclosed except for upper and lower end extensions 01 andother and longer extensions 3 and 2, as shown in Fig. 8. The article and its wrapper are now in readiness for the third stage of operation, which will now be described with particular reference to Figs. 9 and 10. The mechanism operable during the third stage is, as indicated in Figs. 9 and 10, provided in duplicate sets, to operate on the tubular end extensions of the wrapper at both ends of the article a. A description of one set will therefore suffice for both.

Referring to Figs. 9 and 10, all the'folding mechanism there shown is supported on a bracket 61 which, as indicated in Fig. 1, is clamped to one of the columns D described. The bracket 61,'as best shown in Fig. 10, comprises two spaced arms connected intermediate their ends by a suitable and integral web portion. One end of each arm of bracket 61 rotatably supports one end of a short shaft 62, and fixed to the latter and between the arms is a lever 68.

are two of the levers 66 secured to shaft 67- in spaced relation thereon. Also fixed to shaft 67 is an arm 68 which bears a roll The lever 63 scribed cam shaft 21. The cam 69 controls the movement of both levers 63 and causes them to move simultaneously in a manner Referring to Figs. 9 and 10, each arm of bracket 61 has a short shaft 70 rotatably mounted therein, which shaft projects beyond each end of its arm. On one end of each shaft is fixed a lever 71 and the two levers are connected bv inter-meshing segmental gears 72, which, as illustrated, are

integral parts of the levers. A movement of one lever 71 will therefore cause a like degree movement of the other lever, but in an opposite direction. Fixed on one shaft 70 is an arm 73, which, as shown in Fig. 1, is connected by a link 74: to one arm of a bell-crank lever 75. The, latter is pivotally supported from table B and its other arm is connected by a link 76 to an arm 77, which is fixed to the described shaft 40. The duplicate set of levers 71 on the opposite side ofturret 24 have like operating connections so that there are two arms 77 fixed 71 and cause them to move simultaneously the described cam shaft, but arranged in back of the described cam 41, so that it does not appear in the'drawing. Thus, one cam may. control the movement of all four levers in a manner to be described.

The levers 71 are provided with tucking fingers 79, which, shortly after the turret comes torest, are moved by their cam to lay the short end extensions m'flat against the ends of the article 8. This cam is also constructed to retract the fingers? 9 shortly.

after the describedmovement, but, before the fingers have released the folded extensions m, the cam controlling'the lev'ers 63 extensions y. The fingers ".80 are so actuated as to start the folding of extensions y shortly before'the' release of extensions 0a so that the latter will not be released until extensions y are folded thereover. The

on levers 63 and are connected to the latter by suitable springs, as illustrated, for the purpose of yieldingly forcing the extension y flatly against'the folds stand the end of the articles 8. The fingers 80 are so'actuated I "that theynot only lay down'the extensions y,

. The fingers 80, therefore, operate. also on. the extensions 2 and fold them away from but continue to move until they come into thepositions indicated .by dotted lines in Fig. 9. In such'positions the fingers-are held stationary until the turret on the next step of movement carries the article by them,-

whereupon the fingers are returned into the positions illustrated by full lines in Fig. 9.

the ends of the article into the positions illustrated in Fig. 11.v i

. The transition of. he artlcle fromthe third 7 to .the fourth. stage, involves nothing more than the retention of the folds of the wrapper in the positions to which theyhave-been moved by the mechanism heretofore described. Referring to Fig. 12', the described brush 59 functions, as before, to hold the folds w and m fiat against the article in overlappin relation. Referring to Figs. 9 and 12, a p ate "81 is provided adjacent each end face of the turret and is supported from the frame of brush 59. The folding fingers 80,

formerly described, substantially abut with the upper ends of plates 81, and the fingers 80, when at rest in the position shown by dotted lines in Fig. 9, lie inthe same planev as the plates. Thus, asthe' turret advances one step to move the articles from the third to the fourth stage, the extensions a ride from engagemen't with fingers. 80. into engagement with plates-:81 and are thereby. held in the condition illustratedin Fig. 11 during movement of the turret. Likewise, the folds v y travel into engagement with and are simi- 'ence will be made to Figs. 12 to 17, inclusive. Referring first to Figs. 13 and 1 1, as

the turret 25 comes to rest for readiness for the fourth stage operations, a blade 82 is positioned, as. shown in.Figs. l3 and 14, so as to substantially; abut with and lie in the same plane as each of the plates 81.

The blades 82, therefore, form continuationsof the latter and function to retain folds z in the positions to which they were moved by thedescribed folding fingers 80.

g "As shown in Figs. 13 and 17, the lower ends fingers 80 are preferably pivotally mounted of plates 80 are forked to providerecesses.

through which access to the central portion of folds y maybe had. v

Immediately after the turret comes to rest, adhesive is applied to the exposed portions .of folds y, asjindicated at 3/- in Figs.

I1 and 12. The mechanism for applying the adhesive is best shown in Fig. 17 and; will now be described. Mounted on table B and on opposite sides of turret 25 are racks 83, which are slidable in a direction parallel with the turrets axis, toward and away from the turret. Removably mounted ,onleach'rack 83 is a glue box 84 and the end ofeach of thelatter adjacent the turret is closed bya roll 85 rotatably mounted in 2' the sidewalls of the box. end of, the shaft 85 of each roll 85 is a ratchet 8,6 which is held from movement in "one direction by a pawl 87 Bars 88,'having teeth atj'one end to, engage ratchets 86, are pivoted at their other ends t table B and the first-named ends are yieldingly forced upwardly by suitable springs, as shown.

Thus, as each box 8% is advanced toward the turret, the engagement of ratchets 86 and bars 88 cause the rolls-85 to rotate in the illustrated directions and the adhesive carried by'the rolls is formed into films of regulable thickness thereon by elements 89, which are adjustable toward and away from rolls 85. Below and. in mesh with each rack 83 is a segment gear 90, which is fixed to a shaft 91 suitably supported in table B. The two parallel shafts 9l are connected bybevel gears, as indicated in Fig. 1, to a shaft 92', also rotatably supported from table 15, and fixed on the shaft intermediate its ends I .is a lever 93 which, in 1, has been Fixed on one largely broken away but is completely shown in Fig. Lever 93 is connected by a link 01 to one end of a lever 95 which is loosely mounted intermediate its ends on the shaft 67 already described. The other end of lever 97 bears a roll to ride in a suitable path cam fixed on shaft 21, but behind the cam 69. It will noted that a turning movement of shaft 02 will, by reason of the bevel gear connections, rock the two segments in opposite directions, as indicated in Fig. 17. The cam for operating the glue 'boxes 81 is constructed to normally hold them away from the turret, and when the turret. comes to rest, to advance them until rolls 85 engage folds ;1 through the recesses in the ends of plate 81. Adhesive is thereby applied to folds y as indicated at 7 in Fig. 11. After the application of the adhesive, the boxe 81 are retracted and held thus positioned until the turret brings an other article a into position for the application of adhesive.

The remaining operation of the fourth stage consists in the manipulation of folds 2 so that they may be laid down in overlapping relation on folds 3 on movement of the turret. The means for manipulating folds 2 will next be described with particular reference to Figs. 13 to 16, inclusive. Each of the described blades 82 is, as best shown in Fig. 15. pivoted at 90 to an arm 97. Each of the latter is fixed to a shaft 98 which is rotatably supported. as shown in Fig. 1, from hearings on table B. Referring to Fig. 1, fixed to shaft 98 intermediate arms 97 is a curved lever 99 which is connected by a link 100 to the upper end of the lever 101. The

latter is loosely mounted intermediate its ends on the described shaft 67 and its lower end is connected to one end of an arm'102. The other end of the latter is forked to encompass the described shaft "21 for guiding purposes and bears a roll for engagement with a suitable cam on shaft 21. This cam is constructed to rock shaft 98 shortly after the adhesive has been applied to folds 7 to move blades 82 into the position indicated by dotted lines in the drawings, and. immediately afterward to return the blades into the positions shown by full lines and hold .them therountil another article a has come into the fourth stage position boxes 81- have operated.

It is to be noted that the axis of pivot 00 is arranged at right angles to the axis of shaft 98 to permit movement of the blade toand the glue ward and away from the side of the turret.

A cam. 1.03 is provided on each end face of the frame of the described brush 59 (Figs. 13 and 16) and springs .104 (Fig. 15) yieldiugly force rolls on blades 82 against these cams. The result of the devices described is that after the adhesive ;2 has been applied to folds the blades 82 swing downwardly beyond folds 2 and release the latter. As the blades swing downwardly, they are also caused to move toward the center-of the turret and bend folds 2 lnickwardly,so that when the folds are released from blades 82, they spring back into, if not beyond, their former and illustrated position. Thus, when blades 82 are again swung upwardly, they lie on the opposite sides of folds 2 from before, and, as the cams 103 force blades 82 outwardly, the folds 2 are forced toward folds g as far as is permitted by plates 81. At the end of the fourth, therefore, the folds 2 lie between the adjacent ends of blades 82 and plates 81.

The final laying down of folds 2 is accomplished during the transition of the articles from the fourth to the fifth stages. Thus, the blades 82, which remain in the positions illustrated by full lines in Figs. 13'and 14, function immediately on movement of the turret to lay down the folds 2, which, as described, lie between blades 82 and plates 81, and press the folds 2 into intimate contact with the folds so that the overlapped folds may be held by the adhesive 3/. As

soon as the gummed overlapped folds y and 2 are released from blades 82, they encounter brushes 105 Figs. 12,11 and 17) which function to retain the folds in overlapped relation. The brushes 105 are supported, as

shown in Fig. 12, from the frame of the arcuate brush 59, already described. The

brush 59 acts, as before, to prevent the overlapped folds and w from opening during the transition of the articles from'the fourth to the fifth stage.

The fifth stage is concerned with the removal of the wrapped articles from the turret and the transfer of the removed articles to a suitable delivery conveyer. The ejecting mechanism will now be described with reference to Figs. 1, 18 and 19.

Mounted to slide vertically in bed A is a pair of rods, 106, to the upper endsof which is fixed a substantially U-shaped bracket 107 (Fig. 18). The lower ends of rods 100 are connected together by a bracket 108 (Fig. 1) which'is connected by a link 109'to one end of a lever 110. The other end of the latter is loosely mounted on the described. shaft 40. Lever 110, as indicated in Fig. 1, is provided with a roll for actuation by a suitable path-cam, which may be fixed on shaft 20 in the rear of the described cam 41. The cam for lever 110' is so constructed as to normally hold bracket 10'? in the illustrated position and to lower the bracket, shortly after the turret comes to rest. This cam is also constructed to hold bracket 107 in its lowermost position untilthe turret starts upon its next step of movement, and there after to quickly restore the" bracket so that it will lie in the illustrated position before the turret comes to rest. The bracket 107,

as shown in Figs. 18 and'19, is provided with a series of horizontally-arranged rolls 1 lll'mounted in closely spaced parallel relation on a plate 112, which is supported from. the cross-bar of the U and yieldingly forced upwardly. On each upstanding arm of the bracket 107 are similar series-of verticallyarranged rolls 113. Thebracket, when posi: tioned as in Fig. 18, is arranged to encompass a portion of the turret so that rolls 111 will engage the top and rolls 113 the ends of the wrapped articles. Thus, the overlapped folds v and w and the overlapped folds 3 and a, which have heretofore been held by the brushes 59 and 105, respectively,

are now'engaged' and held by the rolls du-r ing' the ejecting operation. One ofthe up standing arms of the U-shaped bracket 107 is made longer than the other and provided with a groove 114 in its inner face to receive the roll 35 on the plunger 33, which, as described, forms a movable bottom wall for the wrapping pocket.

As the'turret approaches the fifth stage position, roll 35 rides into groove 114:, and, as soon as the turret comes to rest, the bracket 107-is low- 'ered, as described, whereby theplunger,

which has been connected by its roll with the bracket, functions to eject the wrapped article from the turret. It is to be noted that the removal of the wrapped articles 'is accomplished while: positively held along four edges, so that by no possibility can the I gummed'overlappedseams of the wrapper open during the ejecting operation. When the bracket 107 is in its lowermost position, the cross-bar ofthe bracket and rolls 111 are carried slightly below the end of a plunger 115, which, as shown .in Fig. 1, is mounted to slide horizontally on bed A and at right angles to the direction of movement of the bracket 107. The plunger115 is connected by a link'116- to one arm of a bell-crank lever 117 which is loosely fulcrumed 0n the described shaft 67. The.

other arm of lever 117 is arranged, as indicated in Fig. 1, for engagement with a suitable cam, which may be fixed to the'described cam shaft'21; The cam'for lever 117v is arrangedto move the plunger 115 to .the left as'viewed in Fig. 1, shortly after Such apparatus may be of any suitable type which will operate to hold the over-- lapped gummed folds of. the wrapped articles until theadhesive has set and to carry the wrapped-articles away from the turret roll 113.

while thus held. In the drawings (Fig. .19),

the apparatus consists of three conveyer belts, one ofwhich, as indicated at 11 8, travels with its upper lap .horizontally and in a plane tangential to the upper peripheral portions of rolls 111, when the bracket 107 is in its lower position. The other belts 119 have their adjacent laps traveling in the same direction as the upper lap of belt 118 but in planes at right, angles thereto. Thus,

the wrappedarticlesremoved from bracket 107 may be transferred by plunger 115-upon belt 118and between belts 119, so that the three overlapped gummed folds 'of the .Wrapperare engaged and held by the belts.

A small roll 120 is -preferably mounted, as

indicated in Figs. 1 and 19, tobridge the gap between the belt 118 and the adjacent which supports the described-belts from bed A, is provided with a horizontal plate 122 Preferably, also, the frame 121, l

(see Fig. 1) the inner face. of which will I engage the edge of the wrapped article opposite from the folds o and w, whereby the latter may be held to belt 118. The belts 118 and 119 maybe driven in the illustrated directions by-any suitable means (not shown) There remains to be' described a device which operates to insure that the movable bottom' walls of the wrapping pocket s the plungers 33are correctly positioned when they arrive in the first and fifth stage posi-' tions. This device consists of a spiral cam 123 which is suitably supported, as indicated in Fig. 1, from bed A and closely adjacent that face 'of turret 24 from which rolls 35' extend. One end of cam 123, hereinafter termed the entrance, lies substantially in the plane of the left-hand side of the wrapped article when in the fifth stage position.

Starting from this end, the cam is radial from the fifth tov the first stage positions,

and then extends spirally from the first,

through the second, third and fourth, to

the fifth stage positions, terminating at the latter with its exit'end substantially in the plane of the right-hand side of'the wrapped article when in the fifth stage position. The I two'ends of cams 123 lie at different radial distances from the center of the turret, and the entrance end has a convergent mouth, as shown in Fig. 1.

It will be remembered that the plunger 33, when moved radially outward by the ejecting operation, is left thus positioned until the turret commences its next step of move-' ment. Now, if the plungers 33, which are held 'in their moved positions merely by friction, are not precisely in the desiredpositions for the first stage operations, their rolls will ride into the convergent entrance end of cam. 123 and be forced either radially I inward oroutward by the cam, into the desired 13081131011 Thus, the cam insures that the plunge'rs33 will arrive, correctly positioned. in the first stage position. It will also be readily apparent that a failure to feed an article into the turret at the first stage position would result in no radially inward movement of the plunger 33, and its roll 35 would be left so positioned that, not only would engagement with .the groove 11% of the ejecting bracket 107 be impossible, but the roll might engage other parts and cause damage. The spiral portion of cam 12 functions to move the roll 35 of any improperly positioned plunger into correct position during movement of the turret, so that the roll 35 will be caused to ride into the groove 11.4 of the ejector bracket when it arrives in the fifth stage position.

The operation of the machine will now be summarized. The articles and their wrappers are fed into the turret. while the latter is at rest in its first stage position, by plunger 37. and by the feeding operation the article is inclosed by its wrapper except for pairs of wrapper extensions on one side and both ends of the articles. As the turret comes to rest in the second stage position, one of the side extensions c of the wrapper is laid down and held against the article by folding finger -l2. 'hile extension n is held and protected by the latter. the roll 48 of the glue box is moved to engage extension '11 and then is quickly retracted. As the turret connnences its next step of movement. blade -l2 follows it for a short distance to hold extension c until extension 1/ is moved to meet it by roll 60. Blade 42 is retracted just before the extension 41 is superposed on extension 1'. The folded extension and 1c are thereafter continually held by brush 50 until the articles arrive in position for ejection from the turret.

As the turret again comes to rest. the wrapper extensions at each end of the article are simultaneouslv operated upon. First. the end tuckers T1 lay down the short extensions .1. and. before these tuckcrs have retracted, the folding blade is actuated to fold extension 1 the operations of the blade and tuckers being timed. so that folds w are not released until extension 1/ has been moved nearly into its final position. The blade 80. having laid down extension 7 continues its movement in the same direction and folds extensions at right angles to the package but away from fold 2 Blade 80 is then held stationary until the turret starts on its next step of movement and. since blade 80 substantially abuts with plate 81. the folds 2 and easily ride from the former to the latter. Thus. the folds j and may be held in their folded positions during movement of the turret.

As the latter comes to rest, the folds 2 and 2 are still held in their folded positions, the first by the forked ends of plate 81 and the other by blade 82. The rolls of the intermittently-movable reciprocable, glue boxes then advance in op posite directions and apply adhesive to folds ;I' while folds 2 are covered, protected and held by blades 82. In'nnediately the rolls 85 are retracted, blades 82 swing downwardly and inwardly by reason of cams 103, whereby folds 2 spring outwardly so that the blades, when returned to normal position, lie on the opposite side of folds 2 from formerly. Blades 82, being then held stationary, act as abutments to lay folds upon folds 3/ immediately on movement of the turret. The overlapped folds 1 and z are thereafter held by brushes 105.

As the turret comes to rest in the fifth stage position, the rolls 113 and roll 117 act to hold the overlapped folds previously held by brushes 105 and brush 59, respectively. When the article arrives in ejecting position, it is confined along four sides, the plunger 33 having been interlocked with the ejector 107. The seams in the wrapper of the article are thus held during the ejecting operation and are thereafter held until the adhesive has set by the delivery apparatus shown in Fig. 19, the wrapped articles being transferred thereto. without releasing the overlapped seams, by plunger 115.

The invention haslbeen described, in one embodiment, for the purposes of illustration, but the scope of the invention is defined by the appended'claims rather than by the foregoing description.

What- I claim is 1. A wrapping machine, comprising, an carrier in which articles and their wrappers may be positioned, means to apply the wrappers about the articles to completely inclose the latter and form a plurality of overlapped seams in the wrappers. said means coniprising a plurality of'wrapper-folding devices some of which are operable during intervals of rest and others during intervals of movement of the carrier but all. operable while the articles are held in the carrier, each of said devices arranged to hold the portion of the wrapper folded by it until such portion is engaged and held by subsequently operable devices, means to apply adhesive to one fold of each of said seams and operable just prior to the final folding operation on such seams, and means to continuously hold each overlapped seam from the time of its formation until the wrapped article is ejected from the carrier.

2. A wrapping n'iachine. comprising, a carrier having pockets in which articles and their wrappers may be positioned with two wrapper extensions projecting beyond the pockets to be laid in overlapping relation against one face of the article, an adhesive- .applying means movable into the path of both said projecting extensions, means operable prior to the moven'ient of the first:-

named means to fold one of said extensions flat against the article, means to move the first-named means while the folding means remains in its move Lp o sition, whereby adhesive is applied to the second extension only and while the first extension is covered by the folding means, and means tofold the second extension after the operation'of the first-named means.

8.- A wrapping machine, comprising, an intermittentlyemovable carrier having pockets in which articles and their wrappers may be ositioned with two wrapper extensions projecting beyond thepockets and adapted to be folded in overlapping relation against one faceof the article, an'adhesive applying means pivoted to swing into the path of said extensions when the carrier comes to rest in one position, a folding finger pivoted to swing about the same axis as 'said means, means to move said'finger to fold one of said extensions, means operable while the first extension is covered by said finger to oscillate the first-named means and apply adhesive to the second extension, and means operable on movement of the turret to fold the second extension.

4:. In a wrapping machine, means to apply a wrapper to an article leaving a projecting wrapper extension, a folding blade engageable with one face of said extension and movable in a plane oblique to that of the extension to and beyond thefree end of the latter and back again, whereby the blade may move along one face of said extension and return along the other face, thereof.

5. In a wrapping machine, means to apply wrappers to articles leaving two extensions to be folded in overlapping relatlon against oneface of the article and sealed in such relation, means to fold one of said extensions, means to apply adhesive to the folded extension, and means to fold the second extension upon the first-named extension, the last-named means comprising a folding member to-cover the second extension during the applicationof adhesive and movable after such application'into position to fold the second extension.

6. A, wrapping machine, comprising, an intermittently-movable carrier for articles and their wrappers, each of the latter hav-' ing two extensions to be laid in overlapping relation. against one face of its article, means to fold both extensions in the same direction, leaving one thereof fiat against said face, means to apply adhesive to .the lastnamed extension, means to cover the exposed face of the other extension during the application of adhesive, and means subse- "quently operable to move the covering means into a position to act as an abutment and lay the second extension in overlapping relation with the first extensionon movement of thecarrying means.

7. A wrapping machine, comprising, an intermittently-movable carrier for articles and their wrappers, each of the latter hav- "in'gtwo extensions to-be laid in overlapping relation against one face of the article, a

folding finger movable during an interval of rest of the carrier to fold both extensions v in the same direction into thesame plane leaving one extension flat against the article,

said fingerbeing arranged to remain in its moved position until the carrier commences its next step of movement, means substantially in abutment with said finger when the latter is in its moved position to receive the folded extensions from the finger and hold them d'uring movement of the turret, means operable whenthe' latter is at rest to apply adhesive to. one of the folded'extensions, means to wcoveriandrprotect'the other extension during the application of adhesive-to the first extension, and means to thereafter fold' the second extension in overlapping relation upon the-first extension,

8. A wrapping 'machine, comprising, a

turret movable step by, step and having pockets to receive articles to be Wrapped and their wrappers meansto lmp h Sides and ends of the articles -including means to form gummed overlapped'seams in the wrappers along a side andfbolbichds of each article, members adjacent the periphery and sides of the turret to continually hold the side and end seamsfro'mhthe time of their formation until the turret moves the articles into position for ejection, and means normally forming a continllation of said members .to receive and hold the seams as the turret movesthe articles into position' for e ection, and mechanism to move the last-named means away from the turret to eject the articles. 7 v

91A wrapping machine, comprising, a turret movable step by step and having pockets to receive articles to be wrapped and their wrappers, means to wrap the side and ends of the articles including means to form gummed overlapped seams at a side and both ends of the article, devices operable to I comes to rest to form continuations of said devices to receive and hold said seams and to hold the latter. during ejection of the articles. f

10. A wrapping machine, comprising, a turret movable step by step and having pockets in which articles and their wrappers may be -positioned, a movable bottom wall for each pocket, means to wrap the articles and form a gummed overlapped seam on that side of each opposite from. said wall.

and means to eject the wrapped articles, said last-named means having a part to engage and move said wall and another part to engage said seam, whereby the articlereceive therebetween the wrapped article and engage the end overlapping folds thereof and a part to engage the overlapping folds on the side of the article, said means being constructed to engage and move said wall, whereby the wrapped articles may be withdrawn while held along four sides.

12. A wrapping machine, comprising, a turret having pockets in which articles and their wrappers may be positioned, a movable bottom wall for each pocket adapted to engage one side of the article, means to wrap the articles with gummed overlapping folds on the other side and both ends of the articles, ejecting means having spaced parts to receive therebetween the wrapped article and engage the end overlapping folds there of and a part to yieldingly engage the overlapping folds on the side of the article, said means, being constructed to engage and move said wall, whereby the wrapped articles may be withdrawn while held along four sides.

13. A wrapping machine, comprising, a turret having pockets in which articles and their wrappers maybe positioned, a movable bottom wall for each pocket adapted to engage one side a of the article, means to wrap the articles with gummed overlapping folds on the other side and both ends of the articles, ejecting means having spaced parts to receive therebetween the wrapped article and engage the end overlapping folds thereof and a. part to, engage the overlapping folds on the side of the article, said means being constructed to engage and move said wall, whereby the wrapped articles may be withdrawn while held along four sides, a discharge, apparatus having means to engage the last-named sides and hold the folds until the adhesive has set, and means movable at right angles to said ejecting means to remove the wrapped articles therefrom and transfer them to said apparatus.

14. In a wrapping machine, a turret movable step by step andhavi'ng' a plurality of pockets to receive articles tobe'wrapped and their wrappers, a movable wall for each pocket, means to successively feed articles and their wrapper to the pockets and operable by engagement with the articles to move said walls to a predetermined position, mechanism operable only when said walls are in such predetermined position to move the walls and eject the articles, and supplementary means operable during movement of the turret to insure that said walls are moved to such position.

15. In a wrapping machine, a turret movable step by step and having a plurality of pockets to receive articles and their wrappers, a movable wall for each pocket fric tionally held in position, means to feed articles and their wrappers to the turret and operable to move said walls in one direction, means to wrap the articles while in the turret, means subsequently engageable with each of said walls to move them in an opposite direction to eject the wrapped articles fromthe pockets, and means'operable during the movement of the turret to insure that said walls are properly positioned for engagement by theejecting means irrespective of the operation of said'feeding means.

16. In a wrapping machine, a turret movable step by step and having-a plurality of wrapping pockets, a movable wall for. each .wrapping pockets, a plurality of plungers slidable in the turret and forming bottom walls for said pockets, means to feed articles and their wrappers to the pockets and arranged so that the plungers are moved in one direction by the articles, means to wrap the articles while in the turret, means with which said plungers are. successively and automatically coupled as the turret moves into ejecting position, devices to move the I last-named means to move said plungers in v the opposite direction and to eject the wrapped articles from said pockets, means to frictionally hold the plungers in their moved positions, saidofeeding means being adapted to move the plungers into position for operation by the ejecting means, and

means to move the plungers into the l ast named position operable when the plungers are not so moved by the articles.

18. In a wrapping machine, means toapply a. wrapper to an article and form folds in the wrapper, an arm mounted for swinging movement, and a folding blade on the arm and mounted to swing relatively to the latter about an axis substantially at right angles to that of said arm, all constructed the blade about one of said axes and means and arranged so that the blade may be operable during such swinging movement to 10 moved along one face of one of said folds move the blade about its other axis, whereby v ply a wrapper to an article and form folds thereof.

and return along the opposite side thereof. the blade may move along one face of one 19. In a Wrapping machine, means to apof said folds and return along the other face in the wrapper, a folding blade pivoted to ,swing about different axes, means to swing ELMER LOVELL SMITH.

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