US2131668A - Package wrapping machine - Google Patents

Description

Sept. 27, 1938.

P. D. PARSONS PACKAGE WRAPPING MACHINE Filed July 1, 1937 -9 Sheets-Sheet l y www sept. 27, 193s.

P. b.' PARSONS PACKAGE WRAPPING- MACHINE.

Filed July l, 1937 9 Sheets-Sheet 2 SeptE 27, 1938. P. D. PARSONS PACKAGE WRAPPING MACHINE Filed July l, 1957 9 Sheets-Sheet-A sept. 27, 193s. R .5. PARSONS 2,131,668

PACKAGE WRAPPING MACHINE File@ July 1, 1957 9 sheets-sheet 4 sept. 27, 193s. RQPARSONS @2,131,668 PACKAGE wRAlPING MACHINE I Filed July 1,A 1937 9 sheets-sheet 5 Sept- 27, :1938. D.. P AsoNs 2314315668',

PACKAGE WRAPPING MACHINE Filed July 1, 1957 sa sheets-sneer '7 .Sept 27, 1938. P. D'. PARSONS v l l 2-131538 l PACKAGE WRAPPING MACHINE I Filed July v1, 195'? v i 9 sheets-sheet s ll i Sept. 27, 1938.

I ma

P. D. PARsoNs l2,131,668

' PACKAGE WRAPPING MACHINE l 9 Sheets-Sheet 9 Filed July l, 1937 Patented Sept. 27,

- UNITED STATESl PATENT 'OFFICEy rationj of Pennsylvania Application July 1, 1937, Serial No. 151,539'

'11 Claims.

are to provide novel and improved mechanisms for applying the wrapper sheets to the rolls, and for subsequently discharging the rolls from the machine; and the invention resides in the provision of certain novel and improving details of structure and mechanism hereinafter described .-and illustrated in the attached drawings, in

which:

Figure l is a side elevational View of a machine made in accordance with my invention;

Fig. 2 is -an end elevational view of the ma-A chine;

Fig. 3 is a fragmentary elevational view in 2o section illustrating the interrelation of the various working parts of the machine;

Fig. 4 is a plan view ofthe wrapper-feeding mhchanism forming an integral part of the Iriac ne; Fig. 5 is a fragmentary sectionalview on the line5-5,Fig.1;

Fig. 6 is a fragmentary view in perspective of the wrapper-applying elements and the immediately associated gearing; 3o Fig. 7 is a fragmentary section-on the line 'I-I, Fig. 6;

Figs. 8 to 11,- inclu'sive, are diagrammatic views 0Nillustrating the mode of operation of the wrapper-applying elements shown in Fig. 6; Fig. 12 is a fragmentary enlargement illustrata'j" ing details of the roll-stripping or discharging mechanism;

Fig. 13 is a section on the line I3-I3, Fig, 12; Fig. 14 is a side view of that portion ofthe w mechanism shown in Fig. 12, and

tional views illustrating the mode of operation of the stripping mechanism.

The machine illustrated in the drawings is' es to the machine disclosed in the aforesaid U. Sz Patent No. 2,005,846. u

Referring to Figs. 1 to 3, the machine comprises a suitable base I or frame, at one end of 50 which is mounted a pedestal 2 supporting a horinal for a rotating spider 4, in each of the arms 5 Aof which is slidably mounted a pin 6. Each of the pins -6 is hollow, see Fig. 3, and is longituV 55 dinally slotted for receptionof a retaining pin .1

" and in Figs.- 8 to 11,inclu'sive,the space between theproximate edges-of the plates 25, 25 is con-- siderably narrower thanthe diameter of the rolls Figs. 15 to 17, inclusive, are fragmentary sec-v sentially similar in type and mode of operationA shown at theleft in Figs. 1 and 3 zonen stub Shania. This shaft 3 forms e jeurin the supporting arm which prevents rotation of the pinv in the arm while permitting axial movement thereof on a line paralleling the axis of the shaft 3. Each of the pins 6 has secured in one end thereof a member 8 which carries a roller 9 adapted for engagement with a cam I I secured in iixed position upon the shaft 3, and. a spring I2 in the interior of the pin is confined between the member 8 and the retaining pin 'I and exerts pressure tending to urge the pin and the roller 10 9 rearwardly into engagement with the cam. Toward the forward end, each of the pins has a flange I3, the function of which will be hereinafter described, and outwardly of this flange the pin terminates in a rounded end portion I4 having 15 -longitudinal radially projecting fins I5, see particularly Fig. 17. The terminal end portions o f the pins are adapted to support the toilet rolls, as hereinafter described, so that the rolls, as the spider is rotated, are carried in a rcircular path through the wrapper-applying mechanism hereinafter described. 1

Power from a suitable source (not shown) is applied tothe machine'through a shaft I6, this shaft being coupled at I1 to a shaft I8 journaled 25.

in the frame. The latter shaft carries a pinion I3 which meshes with a gear 2l secured to the spider 4. 'Ihese shafts and the spider are con-V tinuously driven in the normal operation of the machine. I

Positioned in he path of the toilet rolls Rias the latter are rried downwardly on the rotating spider 4 is a table 22, this table being supported in part upon brackets 23 secured to the machine frame. The table has a recess 24 v:forming an 35 y opening through which the rolls R. arepermitt ed to pass. At each` side edge of the recess 24- and hinged to thetable 22 is a plate 25, these plates` being normally resiliently supported in the plane of the table by springs 26. 'As shown in Fig. 4. 40

R,'so that as the roll is carried downwardly through the opening in thetable 22 formed by the recess 24, the platee 2s, 25 ere depressed about 45 their hinged connection with the table.

f Associated with the table 22 is mechanism d in rug. 4 for feeding wrapping sheets to the ta le 22, one such wrapping sheetrbeing indicated at 42'I .in Figs. l,

3 and 4. The wrapper-.feedingl mechanism com-l y prises means f or withdrawing a continuous strip i of the iiexible-wrapping material from a roll-28 of vsaid material supported inthe present in- 55,

. rolls 48, 49.

stance, as shown in Figs. 1 and 3, upon a spindle 30 journaled in the frame of the machine, and for cutting this continuous strip into measured lengths according to the required size of the individual wrapping sheet. In the present instance, the strip of material drawn from the roll 28 passes first over an idler tensioning roller 29 which is journaled between arms 3l, 3l depending from a shaft 32 suitably journaled in the machine frame. To this shaft 32 is secured an' arm 33 which has attached to its outer end a depending counterweight 34. From the tensioning roller 29 the strip passes to an idler roll 35 journaled in the frame, and thence between feed rollers 36 and 31. From the feed rollers 36 and 31 the strip passes through a guide member 38 to a second feed roll 39 and between this roll and-a plurality of presser rolls 4I, and from these latter rolls through a second guide 44 to and between a third feed roll 42 and presser rolls 43. Between the sets of feed rolls 39, 4I and 42, 43 and between the adjoining ends of the guides 38 and 44, the strip is subjected to the action of a vertically reciprocating cutter 45, this cutter comprising a blade 46 which cooperates with a member 41 over which the strip passes to shear the latter transversely. From the feed rolls 42, 43 the severed sheets pass from the guide 44 onto the table 22, and are advanced to the proper position upon this table overlying the recess 24 by means of two sets of feedl rolls 48, 49, the rolls 48 projecting up.- wardly through apertures 50 in the table 22, as shown in Fig. 44. The wrapping sheet 21 is advanced by the action of the rollers 48, 49 until the rear or trailing edge of the sheet clears these rollers, at `which time itis in the proper position above the `recess 24 to receive the rolls R. in their downward movements. 1f the speed of operation is such as to require them, stop lugs 5I may be provided at the outer edges of the hinged plates 25, these lugs acting as positive stopsl preventing further movement of the wrapping sheet after the rear edge of the latter has cleared the In passing over the table 22, one of edges of the sheet 21 is provided, as shown in Fig. 4, with a -strip 52 of adhesivei this adhesive being applied to the sheet throughthe mediumvof a rotary applicator disk 53 which projects at one side through a narrow slot in a receptacle 54 containing the adhesive, the disk 53 functioning normally to close this slot in the wall of the adhesive container to prevent escape of the. adhesive when the machine is idle. 'I'he bottom of the disk 53 engages the edge portion of *the wrapper sheet as it passes over the table 22, and being rotated by means hereinafter described transfers the adhesive withdrawn from the receptacle 54 to the sheet.

As the rolls are passed downwardly through the recess 24 of the table 22, Athey carry with them the individual sheets 21, and elements 55, see Figs. 3 and 8 to 11, inclusive, operating below the table .22 function in a manner hereinafter described to wrap the respective sheets snugly about the indi` vidual rolls, and to seal them by means of the adhesive applied as previously described. As this operation is completed and the rolls continue their downward movement on the rotating spider 4, mechanism associated with the pins 6 and indicated generally in Fig. 3 by the reference numeral 56 functions to strip the lwrapped rolls from the pins, the rolls being deposited individually in cradles 51 on an endless conveyer 58 in the lower part of the frame, and being carried by this conthe side inafter described the mechanisms, by means of which the function of the machine is carried out, diifer'from the `mechanisms of the prior patent.

By reference to Figs. 6 to 11, inclusive, it will be l noted that as the rolls R. are carried downwardly on the arms 5 of the lspider 4 and are brought into engagement with the sheet 21 supported as previously described upon the table 22, the hinged plates 25, 25 are depressed, see particularly Fig. 9, with the result that the sheet 21 is in effect drawn around the under side of the cylindrical roll. Below the table and at either side of the path of movement of the roll on the spider 4 is a shaft, 6| and 62 respectively, and each of these shafts near its outer end carries a anged collar 63 and 64. At the front of the collar 63 of the shaft 6| and loosely mounted for oscillation upon the projecting end of the shaft is a pair of arms 65 and 66 which project radially from the shaft and normally in diametrically opposite directions, as shown in Figs. 6 and 8. In order that this radial Valignment of the. arms 65 and 66 may be obtained,

each of the arms is provided with a hub element, 61 and 68 respectively, which are segmental in form and which overlap each other, as clearly illustrated in Fig. 6. The normal position of the arms is determined by a pair-of pins 69, 69 which project in the axial' direction from the forward face of the collar 63, and are engaged respectively by, the arms 65 and 66, the latter being resiliently held against these pins by springs 1I, 1I. Each of the arms 65 and 66 is thus permitted to turn on the shaft 6I away from the 'respective stop pins l in a direction reverse to the indicated direction of rotation of the shaft 6I. A collar 12 secured to the extremity of the shaft and engaging the outer faces of the hubs 61 and 68 retains these hubs against the outer face of the collar 63 and against axial movement on the shaft. Each of the arms 65 and 66, which are adjustable as to l length, carries at its outer end a transverse bracket'13, and each of these brackets carries va. roller 14. As shown in Fig. 7, the brackets 13 are mounted on the arms to provide for a limited free movement of the brackets from their normal positions, see Fig. 6, around the axes of the arms v to which they are secured.

Similarly loosely mounted on the shaft 62 is a r pair of arms 15 and 16, these arms differing from the arms 65 and 66 in that they are bent at an angle -in the plane in which they are adapted to rotate. The inner ends of the arms 15 and 16 are provided with hub elements 11 and 18 corresponding to the elements 61 and 68 previously described. The normal positions of the arms are determined byv pins 19, 19 and springs 8l, whichv resiliently retain the arms against the pins 19 and in the positions in whichV they are shown in Fig. 6. It will .be noted that the arms 15 an'd 16 `are identical in form, and that normally the inner radial ends of the arms arel in alignment with each other. A collar 82 secured to the extremity of the shaft holds the arms in place, and each of the arms carries'at its outer end a bracket 83, in which are journaled rollers 84, 84. As in the case of the brackets 13, the brackets 83 are mounted on their respective arms for limited self-adjusting 'movement around lthe axes of the outer end portions of the arms. As viewed in Fig. 6, -the shaft 6| is adapted to rotate in a clockwise direction,'and the shaft 62 in the counterclockwise direction, so that the arms move in opposed paths. as indicated.

Again referring to Figs. 8 to 11, and now specifically to Fig. 10, it will be noted that as the roll R passes downwardly between the depressed hinged plates 25, 25, the wrapping, sheet 21 is engaged on diametrically opposite sides of the 10 roll by the rollers 14 and 84-of one arm of each of the sets associated respectively with the shafts 6| and 62, and that,v the arms, by reason of their resilient pivotal mounting on the shafts, are permitted to accommodate themselves to the contour of the roll in spite of the fact that the shafts 6I and 62 are in continuous rotation. Thus in Fig. 10, it will b'e 'noted that the arms'65 and15,

which carry the rollers 14 and 84, then in op- 50 which carry the rolls 14.

erative engagement with the roll, have been moved back against the tension of their respective springs 1I and 8| from the stop pins 69 and 19, and that the springs 1| and 8| thereby function to maintain the rollers 14 and 84 in contact with the wrapper. The action of the arms 65 and 15 and of the rollers 14 and 84 carried thereby is such that as the rolls leave the hinged , plates 25, 25, these arms and rollers take up the function of wrapping the sheet 21 around the roll. The relation of the arms 65 and 15 is such that the roller 14 on the arm 65, as shown in Figs. A10 and 11turns the one edge of the wrapper sheet 21 under the other so that the edges, Vas shown in Fig. 11, are brought eventually, and at this time under the sle action of the roller 84 on the arm 15, into the fiat overlapped relation shown at the bottom of Fig. 8. Since the overlapped edge of the wrapper is that edge which as previously described has received a coating of' adhesive, the wrapper, after contact with the roller 84 iseven- 40 tually broken, see Fig. 9, is held securely in position upon the roll. It will be noted also, as shown in Fig. 9, that as the two arms acting as previously described upon the one roll leave the latter, the

other two arms of the respective sets move into position to engage the wrapper of a succeeding roll then passing downwardly between the hinged plates 25.

Attention is also directed to the ns or-anges 8 5 thrown up at rthe backs of the brackets l13 When as described aboveand as shown in-Fig. 11 this roller-tucks the one edge o f the wrapper under the other'or overlapping edge, there is contact between this overlapping adhesive-coated edge and the outer end ofthe bracket 13. 'I'he fins 85 then function to prevent the wiping off of the adhesive upon the bracket and preclude an accumulation of adhesve on this bracket which might eventually foul the roller.

'6, have connected thereto at their rear ends .toothedgeara 86 and\81 respectively, and these gears are interconnected by idler gears 88 and 89 suitably journaled on the frame. Meshing .with

` the bottom of the gear 86 is a second idler gear.

meshes with a gear 92 carried 9| which in by a -shaft 93 jcurnaled in the frame of the machine. Ihis shaft, as shown in Fig. 1, is connected through a clutch 94 with Aa shaft 95. This latter shaft carries at its outer end a sprocket 96 which is connected by a chain 91 witha second sprocket -98 secured to'theshaft I8. The shafts 6I and 62 are thusdriven continuously, under normal conditions, with the shaft I8, which as previously described is operatively connected with the spiderA The shafts sl and sz, as shown in Figs. 5 and" 4, and the movements of the spider and of the rolls carried thereby are thus synchronized with the movements of the wrapper-applying arms 65 and 15.

When the rolls R are placed on the ends of the pins 6 as previously described, these pins under actuation of the cam I| have been moved to the advanced vor extended positions, as shown at the top of Fig. 1, whereinthe rolls are in alignment with the wrapper positioned on the table 2.2 and with the wrapper-applying rollers 14 and 84. This advanced position of the pins is maintained during the wrapper-applying operation described above. When, however,`the wrapping operation has been completed and the roll has advanced into the position shown at the bottom of Fig. 9, it becomes necessary-to retract thel pins 6 in order to permit dischargef the roll ,from the machine by way of the conveyer 51. Retraction of the pins 6 is effected by the springs I2, and is permitted by the re-entrantv portions Aof -the cam II. Fig. l5, the pin k6 is shown in the extreme advanced position, and it will be noted that in this position the flange I3 of the pin is only slightly removed from the end, |0| of the roll R, the flange I3 and the outer end of the pin being embraced bythe cylindrical projecting end of the wrapperF21, which in lthe present instance exthe spider 4. At the rear end of' each of the rods |03 is a collar |04'wh'ich limits the sliding movement of the arms in one direction, and at the other end of the rods is mounted a member |05 which carries a stripper nger'l06. This finger has at -each end a transverse lug;` I 01 and |08 respectively, whichl project into path of andat opposite sides of the flange I3 of'the associated pin 6. When the pin 6 is advanced to the position in which itis shown in Fig. 15, the flange I3, by engagement with the lug |01, draws the stripper finger |06 and the rods I |13` to which it is secured into a similarly advanced position. When. the' roll R is applied to the end of the pin 6, the lug |01 thus constitutes a stop, which 20v In fined between the flange I3 and the inner end y of the roll. By reason ofthe spaced relation of the lugs |01 and |08, the pin 6'when retracted is permitted a corresponding free movement with respect to the stripper finger, and i'n the travel of the ange I3 between the inner or adjacent faces of the lugs |01 and |08, no force is applied directly from the pin to the strippernger tending to return the latter with the supporting rods |03 toward the retractedvposition. The roll R, however, by reason of the ribs I5 on the ex- `tremities of the piris 6, is more or lessfirmly wedged on the pins, this being necessary to prevent a possible :rotation of the roll with respect to the pin, and-it is apparent, therefore, that if some means were not provided for temporarily holding the stripper ngerin the advanced powhen thelatter is retracted, and to strip the roll n from the pin, the member |05 which carries'the stripper nger is provided, as best shown in Figs. 12 and 14, with a boss |09, to which is secured for rotation a roller As the pin 6 with the roll and the now attached 4wrapper moves toward the bottom of its circular path with the spider 5, and as the cam roller 9 of theA pin approaches the re-entrant portion of the cam the roller of the stripper mechanism moves into engagement with the outer face of an arcuate plate ||2, which as best shown in Figs. 1, 2, 12 and 14 is attached to the lower part of a circular plate II3 secured to the inner extremity of the stub shaft 3. When so engaged with the plate ||2, retractive movement ofthe stripping finger and its supporting rods |03l is prevented, so that when las shown in Fig. 16 the pin 6 is retracted by the spring I2, the stripper finger |06 remains in position to thereby permit withdrawal of the pin from the roll R. Immediately subsequent to'the clearing of the outer end of the pin 6 from the roll, however, the flange |3 engages the lug |08 of the stripper finger, and simultaneously the roller |I| clears the end of the plate |I2, so that the spring I2 is then permitted l to continue the retractive movement of the pin 6, and with it of the stripper finger |06 into the fully retracted position, as shown in Fig. 1'1.

-As the aforedescribed stripping action progresses,

the roll occupies a position directly over one of the cradles 56 of the conveyer 51, and when the stripping action is completed, the roll rests in the'. cradle 56 and is carried thereby from the machine.

The wrapper-feeding mechanism illustrated diagrammatically in Fig. 3, and hereinbefore described in general terms, will now be described in detail.` Referring to Fig. l, it `will be noted that the shaft 93 which carries the gear wheel-92 has at its extremity a spiral gear I|5, and this gear, see Fig. 2, meshes with a spiral gear ||6 carried by a transverse shaft I|1 journaled in the casing. At each end. the shaft I I1 carries a. cam |8 having in its inner face a cam slot (not shown) which receives a roller |I9 projecting from one side of a rod |2|, these rods depending from opposite sides of the transverse cutter bar 45 which carries the blade 46. The rods |2| are adjustable as to length, as best shown in Fig. 2, and each has at its lower end a fork |22 which embraces a collar on theshaft II1, and is thereby guided in the vertical reciprocatory motion. Rotation of the shaft I I1 and of the cams I8 secured thereto results, through the rollers ||9, in a vertical reciprocation of the rods |2| of the cutter bar and blade 45T-46,

Secured to the outer face of the cam ||8, on that side of the machine shown in Fig. 1, is a disk |23 which carries a slotted block |24 forming one element of an adjustable crank mechanism on the shaft I I1. The crank pin |25 slidably mounted in the block |24 is adjustable radially of the shaft axis through the medium of a screw |26 to thereby regulate the throw of the crank. v The crank pin |25 is connected by a crank rod |21 with one end of a bell crank lever |28 mounted for oscillation on the outer end of a stub shaft The other arm of the turn meshes with a pinion |39 on one end of ay shaft |4|, which as shown in Fig. 4 extends from one side of the frame to the other. The shaft |4| carries at its opposite end a pinion |42 which l meshes with a gear |43 at one'end of a shaft |44I ljournaled in the frame, which shaft carries at its opposite end the adhesive applicator disk 53. Adjacent each end thereof, the shaft |4I carries a sprocket |45, one of these sprockets being connected by a chain |46 to a sprocket |41 on a shaft |48 journaled in the frame which carries one of the two feed rolls 48. The other of the sprockets |45 is connected by a sprocket chain |49 with a. sprocket |5|, and this sprocket is secured to a'shaft |52 at the opposite side of the frame from the shaft |48 which carries the other of the feed rollers 48. The companion rolls l49,

49 of the rolls 48 are carried in each instance on an arm |52 loosely supported on a rock shaft |53 suitably journaled in the frame. To each of the arms |52 is secured a spring |54 which normally holds the arms in the. depressed positions, `in

which the rollers 49 are in operative relation with the rollers 48.

Secured tothe rock 'shaft |53 is a pair of offset arms |55, the outer ends of which underlie the arms |52, so that when the shaft |53 is turned in one direction, as hereinafter described, the

arms |55 act to elevate the arms |52 against the` downwardly and is connected, as shown in Figs.

1 and 5, to a lever |58 pivotally mounted on a pin |59 projecting from a bracket IBI secured to the frame. The lever |58 carries at its outer end a roller |62 which bears against the face of the gear 86 in position for engagement with a pair of spaced cams |63, |63 secured to the gear face, the arrangement being such that during one rotation of the gear 86, the free end of the lever |58 will twice be moved away from the face of the gear by action of the cams |63, thereby elevating the connecting rod |51, and through the arm |56 rocking the shaft |53 in a counterclockwise direction, as viewed in Fig. 1. This rocking movement of the shaft, occurring twice in each full rotation of the gear 86, results in an elevation of the rollers 49, 49 as previously described from the companion rolls 48.

The shafts |64 and |65 of the rolls 36 and 31 are connected together by means of toothed gears i |66, |66. The vshaft a sprocket |61 connected through a chain with a sprocket the shaft ||1. As shown in Fig..3, each of the |65 also carries at one end l|68 4rolls 4| and 43 is supported at the lower end of a stem |1| slidably supported in cross bars |12 on the frame, the pins having splined connections with said cross bars, as indicated at |13, which permits their vertical reciprocation but prevents the pins from turning in the supports. Each of the stems has attached thereto a spring |14 which yforces the stem resiliently downwardly and maintains the rollers 4| and 43 in operative relation with the companion rollers 39 and 42.

It will be apparent from the foregoing description that while the rolls 36 and 31 are contlnuously rotated, the rolls 39, 42 and 48 receive an intermittent rotation through the action of.

the ratchet wheel |33 and the associated mech- |69 secured to one extremity of` rolls 36 and 31 and the rolls 39 and 42 is compensated by a loop formed in the strip of material drawn from the roll 28 in the space between the rolls 36 and 39, as shown inFigs. 1 1

and 3. The intermittent movement of the web or strip is so timed with the operation of the cutter blade 46 that the portion of the strip acted on-by the blade is held stationary during the actual cutting operations, -the subsequent operation'of the rollers 39 and 42 .being sufficient to take up the free loop in the web between the rollers 36 and 39. and, with the rolls 48, to feed the severed portion of the strip into position on the table 22. The intermittent elevation of the rollers 49 as previously. described leaves the individual wrappers free from interference as they are drawn downwardly by the rolls through'the table recess v24, and also clears the one roll 49 from possible `contact with the wet adhesive on the wrapper. Preferably the feed roll 42 is slightly greater in diameter than the roll 39 to insure tension in the paper strip between these rolls when the cutter operates to sever the strip.

:It-will be noted, also, that the feed rolls 48, 49 operate at a sufficiently high effective speed to advance the severed sheet onto the table 22 during the period that the rolls 39 and 42 are moving the strip into position for the next succeeding cut. Preferably the rolls 49 are elevated slightly in advance of the engagement of the wrapper tially contacted by the rolls R.

Means is ,provided for rendering .the aforedescribed feeding mechanism inoperative inthe event that one or other of the vpins-6 fails tore-A ceive a roll R at the station in which the said rolls are placed on the pins. .This device comprises a roller |15 carried by an arm |13 secured to a rock shaft [1.1, this latter shaft being immnaled on a supporting arm |13 seemed Vto the xed cam as shown in Fig.'1. "I'he- .arms |19 occupy normally a position in' which the'roller |19 lies in the path of the/rolls R as'they move downwardly toward the table 22. and the arm |16 is thereby moved from this normal position by each of the rolls as it contacts the roller |15. This displacement of the' arm |19 by the rolls rocks the shaft |11 and elevates a rod |13, the upper 'end of which is secured to an arm |3| on the shaft |11. The lower end of the rod |19 is secured to a-iinger |32 pivotaily attached at |33 to a bracket |34 secured to the frame of the machine. 'I'he linger |32, when depressed, will act upon the clutch 94 to disengage the latter after each full revolution, thereby the shaft 93 from the shaft 95:

and when in thel elevated position, as .showrr in Fig. 2, the finger |32 permits engagement of the clutch 94, to thereby connect the wrapper-,feeding mechanism tothe source of power. As pre- .viously set forth, the .finger |32is normally in -the depressed position, but when elevated r through the medium of the roller |19 and by engagement with said roller of one of .the 'rolls R. Y

the finger |32 is elevated, permitting the clutch 94 to engage. The clutch 34 is of the ope-revothepitionoftbewller Il iwlllremaipinthe normal depressed position, whereby the clutch 94 will be temporarily disengaged andthereby pre-L venting operation of the wrapper-feeding mechanism as that particular pin approaches and passes through the opening in the table 22. For

that pin, therefore, the feeding mechanism will fail to feed a wrapping sheet to the table 22.

subsequently discharge the rolls from the machine. The stripping mechanism is particularly well adapted for operation in connection with roll'packa'ges employing wrappers of the character herein disclosed, which in the lfonnative stage are greater in length than the axial dimension ofthe rolls, said stripping mechanism being designed to voperatewithout interference `with the overhanging or projecting portions of the wrapper. It will be understood that subsequent to the application of the wrappers in the machine forming the subject vof the present invention, the pro- From the foregoing description, itvwill be ap'y jecting ends of the wrappers are-folded down againstl the ends of .the roll to complete the package, a machine adapted for this operation being disclosed in my copending application Serial Number 70,866. The rotary wrapper-applying elements which have been designated genj erally. in the foregoing description by the reference' numeral 95 1 highly efllcient in the function for which ey are intended and maintain .their operating emciency overextended periods of. use.

It will-'be apparent 'that the .machine and its v various. individual mechanisms are subject to' modiiica-tion in detail without departure from the invention. .y f ".I

1. vIn a machine for applying wrappers to cylindrical rolls, the combination with .a rotary y conveyer forV said rollfgofmeans located in the rotary path of said roll on the conveyer for initially engaging the wrapper with the roll and comprising elements operative to turn the oppo` tsite end portions of the wrapper partially around lthe roll, a pair of members rotating on fixed axes in synchronism with the movement of the conveyer and with each other and arranged respectively at opposite sides of said path, and an arm movable with each of said members adapted `respectively to engage the free ends of said wrapper as they respectively leave said elements land y to lay said ends against the roll in overlapping relation, said arms being resiliently connected with the respective members and being movable with thereto in the planes of ltheir rotation to thereby permit the outer ends of the arms to move in conformity with the contour of the roll.

2, In a'machine for applying dry wrappers to cylindrlcairroils, thev combination with a conveyer for said roll. of means located in the path of said roll for initiallyv engaging the wrapper with the'roll and comprising elements operative t 1 turn the opposite end portions of the wrapper partially around the roll, a pair-of rotating members actuated in synchron'ism with the movement of the conveyer and with t each other and ar. ranged at opposite sides of said path,

anarm movablewitheachofsaidmembersj' overlapping relation, andV meansA for resilicntly retainingsaidarmsinapsedeterminednormal pedana with M to nid re-'i partially around the roll, a pair of rotating members actuated in synchronism with the movement of the conveyer and with each other and arranged respectively at opposite sides of said path, an arm movable with each of said members and adapted respectively to engage the free ends of said wrapper as they respectively leave said elements to lay said ends against the roll in overlapping relation, a lost motion connection between said members and the respective arms, said connection comprising a stop element on said member adapted for engagement with said arm to limit the movement of the arm with respect to said member in the direction of rotation, and a spring resiliently retaining said arm in engagement with the stop, said spring permitting limited movement of said arm while in engagement with said roll away from said stop in a direction reverse to the direction of rotation of said member.

4. In a machine for applying dry wrappers to cylindrical rolls, the combination with a conveyer for said roll, of a table located in a plane intersecting the path ofsaid roll with the conveyer, said table having an opening for passage of the roll therethrough, whereby as the roll passes through the opening a wrapping sheet previously placed upon said table over said opening is initially engaged with the roll, a pair of rotary members located below the table at opposite sides of said path and adapted for rotation in opposite directions and in synchronism with the movement of said conveyer, an arm mounted on each of said members, each of said arms having at its outer end a roller, and said rollers being adapted to engage the respective ends of the wrapper as it leaves said table and to lay said ends against the roll in overlapping relation, and means for resiliently connecting said arms with the respective rotary members to provide for movement of said arms with respect to said members in the planes of their rotation to thereby permit the outer ends of the arms and said rollers to move inV conformity vwiththe contour'of the roll.

5. In a machine for applying wrappers to cylindrical rolls, the combination with a conveyer for said roll, of a table located in a plane intersecting the path of travel of said roll with the conveyer, said table having an opening through Whichsaid roll is adapted to pass, whereby as the roll passes through said opening a wrapping sheet previously placed upon said table over said opening is drawn downwardly through said opening, means at the under side of said table'for completing the wrapping operation, said feedingmeans comprising a feed roll located below the table and engageable with the wrapping sheet through an aperture in the latter, a companion roll above the table for engaging the upper surface of said sheet, and mechanism operated in synchronism with the movement of the conveyer for elevating the said upper roller as the said wrapping sheets are drawn downwardly'through the table opening.

- feeding mechanism comprising a feed roll located below thetable and adapted for engagement with the wrapper sheet through an aperture in the table, -a companion roll located above the table and engageable with the upper surface .of said sheet, mechanism operating in timed relation with the movement of said conveyer for elevating the said upper feed roll as the said wrapper sheets are drawn downwardly through said opening, and mechanism located below the table and adjacent the path of travel of the roll for laying the ends of the said wrapper against the roll in overlapping relation.

'7. In a machine for wrapping hollow cylindrical rolls, the combination with a conveyer comprising a pin adapted to enter the interior of the roll to support the latter on the conveyer, of mechanism operating in synchronism with said conveyer for applying a wrapper to said roll, and mechanism for stripping the wrapped roll from the pin, said stripping mechanism comprising means for longitudinally retracting the pin from the normal ing a pin adapted to enter the interior of the roll to support the latter on the conveyer, of mechanism operating in synchronism with said conveyer for applying a wrapper to said roll, and

mechanism for stripping the wrapped roll from y the pin, said stripping mechanism comprising means for longitudinally retracting the pin from the normal operative position, an element engageable with the end of the roll and movable by and with the pin into the'advanced or normally operative and the retracted positions, a lost-motion connection between the pin and said element permitting an initial limited retractive movement of the former independently of the latter, vmeans for retaining said element in the advanced position during said initial retractive movement of the pin, and means for rendering'said retaining means inoperative at the termination of -said initial retractive movement to permit movement of both the pin and the element into the fully retracted positions. i

9. In a machine for wrapping hollow cylindrical rolls, the combination with a conveyer comprising a pin adapted to enter the roll to support the latter, of means operating in synchronism withthe movement of the conveyer to longitudinally advance and retract thefpin, and means for stripping the roll from the pin in said retractive movement, said stripping means comprising an elein the advanced position during an initial retractive movement of the pin, and means operative after termination of said initial retractive mover f ment to move said element with the pin to the fully retracted positions.

10. In a machine for wrapping hollow cylindrical rolls, the combination with a conveyer comprising va pin adapted to enter the interior of the roll and to support the latter on the conveyer, of mechanism operating in synchronism with said conveyer for applying to said roll a wrapper of greaterlength than the axial dimension of the roll, said wrapper thereby projecting beyond the roll end, and mechanism for stripping the wrapped roll from the pin, said mechanism comprising an element engageablevwith the end of the roll inside the projecting wrapper end, and means for reciprocating said element in the direction of the roll axis. p

11. In a machine for wrapping hollow cylindrical rolls,v the combination with a conveyer comprising a pin adapted to enter the interior oi.'

the`roll to support the latter on the conveyer, of mechanism operating in synchronism with said conveyer for applying a wrapper to said roll, means for periodically retracting the pin in the conveyer from a normal operative position, and means for retaining the roll in the advanced position during the retractive movement of the pin whereby the roll is stripped from the latter,

said means comprising a stripping finger mounted on said conveyeradjacent the pin for reciprocatory -movement longitudinally of the latter, a flange on said pin, spaced elements on said nger projecting into the path of said ange and at opposite sides thereof lwhereby the longitudinal movements of said pin may effect longitudinal movements of the finger in the same direction,v and means for retaining the nger in the advanced position during the initial retractive movement of the pin and' while said flange is moving `in the space between said nger elements.

PHILIP D. PARSONS.

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