US2094815A - Paper wrapping machine - Google Patents

Description

oet.r 5, 1937. L. E. COLE 2,094,815

PAPER wRAPPI-NG MACHINE Filed June 4, 1954 8 Sheets-Sheet l N NTOR l0t.5,1937. l LEPOOLE 2,094,815,

PAPER WRAPPING MACHINE Filed June 4,l 1934 8 Sheets-Sheet 2 x INVENTOR f ATTORNEM oct. 5, 1937. L. E. POOLE 2,094,915

PAPER WRAPPING MACHINE Filed June 4, 1954 9 sheets-s119995 50o 314 51o 312 02 308 v o l o C) o 9 q) 40a Q o 5 l I 4 zoo o 408 Q f9.2 g' l 404 404 405% C@ 194 l 300 202 308 310@ 41o azz T 404 4oz S o @D 2,6

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Gct. 5, 1937. E. POOLE PAPER WRAPPING MACHINE Filed June 4, 1934 8 Sheets-Sheet 4 5% ATTORNEY# Oct; 5, 1937. E, POQLE 2,094,815

PAPER WRAPPING MACHINE Filed June 4, 1934 8 Sheets-Sheet 5 INVENTOR Oct. 5, 1937.

l.. E. PooLE 2,094,815

PAPER WRAPPING MACHINE Filed June 4,'1954 sheets-sheet e Z BY ATTORNEY/b Oct. 5, 1937. L.. E. |=-oc LE 2,094,815

PAPER WRAPING MACH I NE Filed June 4, 1934 8 Sheevts-Sheetl' lll 242 308 \zz6 i E L 'l 71 n 324 .3!6 |I l 1480 U' zo l@ /A/ /L-za o I a /'fzz-g 54, zzz

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PAPER WRAPPING MACHINE 12u14 VE TOR l@ ATTORNEX@ Patented Oct. 5, 1937 UNITED STATES PATENT OFFICE PAPER WRAPPING MACHINE Lora E. Poole, Anderson, 1nd., assignor to General Motors Corporation, Detroit, Mich., a corporation of Delaware Application .lune 4, 1934, Serial No. '728,843

30 Claims. (Cl. 21B-30) This invention relates to wrapping machines erating devices of the machine such as a plurality and more particularly to a machine for wrapping of paper feeding devices A, a plurality of `paper paper around electric coils. cutting devices B, Va plurality of paper moistening It is an object of the present invention to prodevices C (see Fig. 8), and a plurality of cooper- 5 vide for semi-automatic and simultaneous wrapating paper wrapping devices D and E (see also ping of paper around several sides of a multi- Fig. 8). sided coil. In the present instance the machine is adapted It is another object of the present invention for wrapping sheets of paper around the four simultaneously to seal the paper wrappers of a sides of a four-sided coil such as the generator 10 coil. field coil designated by the reference numeral lo It is still another object of the present inven- 24 in Figs. 2 to 5, inclusive. Briey, during one tion to provide common operating means for the cycle of operation the machine performs the folvarious `:identical machine elements which slmullowing functions. Foul' StIPS of papel', emelg* taneously fold paper wrappers around several ing from foul Supply 1011S, are 'Simultaneeusly sides of a multi-sided coil. and intermittently fed past .four paper cutting 15 Further objects and advantages of the present devices B and past the outer confines of the four invention will be apparentfrom the following desides of a properly located coil. Short sheets of scription, reference being had to the accompanypaper are then simultaneously severed from :the

Y ing drawings wherein a preferred embodiment of fed Strips by the Cutting deVCeS B- Referring the present invention is clearly shown. Dartieulally to Figs. 15 t0 13 inclusive, there iS 420 In the drawings: shown'in Fig. 15 one `of the four sheets 25 of Fig. 1 is a perspective View of a machine empaper in the position in whichit was severed from bodying the present invention, a strip. The severed sheets are then simultane- Figs. 2 to 5 inclusive, are enlarged fragmentary ouSly DreSSed against the Outer confines 23 of the perspective views of a part of the machine which properly located C011 24, the One end POltOn 3@ of 25 illustrate progressive steps of a wrapping operaeach sheet 25 is folded over the top surface 32 'of tion performed upon a coil. the coil and the opposite end portion 34 of each Fig. 6 is an enlarged fragmentary plan View of sheet is folded underneath the bottom surface 36 the machine. of the coil as illustrated in Fig. 16. While the Fig. 7 is a pian view similar to Fig. 6 showing end portions 34 of the Shoots aro thus folded 20 however, certain elements of the machine in a underneath the bottom surface 36 of the coil, the

different position of operation, gummed sheet surfaces 38 are moistened. Next Figs. 8 and 9 together represent a complete the inwardly extending sheet ends MJ are simulsection taken on the line 8 9 of Fig. 6. taneOuSly fOlded, YSt upwardly into engagement Fig. 10 is a side elevation of a part of the ma- With the inner Comines 42 of the con and nauy 35 chine as viewed in the direction of arrow ic in over the tor surface 32 thereof on top of the pre- Fig. 8. viously folded sheet ends 30. The contacting Fig. ll is a fragmentary section similar to a, sheet ends thereby become sealed due to the enpart of Fig. 8 showing, however, certainelements gagelnent 0f the InOStened gummed Sheet Sur'- 40 of the machine in a, different position of Operafaces 33 with the folded sheet ends 30. 40 tion. The coil 24 is supported by the top surface 44 Fig. 12 is a fragmentary section taken on the of post 22 and located thereon by two pairs of line 12-E2 of Fig. 8. fingers i6 which receive two diagonally oppo- F'ig. 13 iS a fragmentary Seeton taken 0n the site corners of the coil, each pair of fingers being line iii-43 of Fig- 8- joined by a yoke which is pressfitted into and 45 Fie. 14 illustrates n a diagrammatic manner flush with the coil supporting top surface ll-'lk of the control for the admission of fluid pressure to posi, 22, various cylinders of the machine. Paper feeding device A Figs, 15 to 18 inclusive, illustrate in a diagrammatic manner progressive steps in the wrapping Referring more partlcularly t0 Flgs- 1 8: 10 50 of a sheet of paper around one of the Vsides of a and 12, the four sides of post 22 are each promulti-sided coil. vided with a rectangular recess 50 which is Referring to the drawings, the present machine stepped up at 52. Attached by screws 54 to the COInPfSeS a base 223, Supporting a rectangular, steps 52 of each recess 5l] is a track 56, part of 55 hollow post 22 on which are mounted various cp the front face 58 of which is convexV as at 60 55 (see Fig. 12). Fitting over each of said tracks 56 is a substantially U-shaped slide 62 which is retained on the track by a cover plate 64, attached to said slide 62 by a plurality of screws 66. As best shown in Fig. 12, that face of each cover plate 64 which is adjacent the convex face portion 66 of a track 56 is concave and slightly spaced from said convex track face 66. Each onecof the four paper strips 26 passes through a curved space intermediate a track 56 and a cover plate 64. Each of the cover platesv 64 is provided with a forked bearing lug 68, pivotally receiving at 7|) an eccentric 72 which in the position disclosed in Fig. 8 clamps a paper strip to a depending lug 74 of a slide 62. Each lug 74 is received by a longitudinal groove 76 of a track 56 so that the slides 62 and the attached cover plates 64 may move along their respective tracks without interference from the lugs 74. Two of the four eccentrics 72 are pivotally connected at 78 to the arms 8U which are adjustably mounted on a piston rod 62 of a piston, received by a fluid pressure operated cylinder 64 which is mounted in any suitable manner on post 22. Due to the direct connection of each driving piston with a pair of eccentrics 72, upward motion of both pistons in the direction of arrow 66 in Fig. 1 causes all eccentrics first to clamp their respective paper strips 26 against the adjacent lugs 74 before the slides 62 and attached cover plates 64'are moved by said pistons while the paper strips remain clamped to said lugs 74 as can be readily understood. Such upward movement of the piston, therefore, results in a feeding of the paper strips along the convex track faces 66 in the direction of arrow 86 in Figs. 1 and 8. Upon downward movement of the pistons, the eccentrics 72 are first rocked Vout of clamping engagement with the paper strips until they engage adjustable set screws 7|, carried by brackets 73, attached in any suitable manner to the cover plates 64. As soon as during such downward movement of the pistons the eccentrics are rocked into engagement with the set screws 7|, the feeders which include the slides 62, cover plates 64 and eccentrics 72, are moved downwardly in unison with the pistons as can be readily understood.

The paper strips 26 are drawn from supply reels 60 which are wound on drums 92 each of which is journaled on a stationary axis 94, projecting from a bracket 96 which is mounted in any suitable manner on post 22. Each supply reel is held between two discs 98 and |66, the former being attached in any suitable manner to a bracket 96 and the latter being removably supported on the axis 94. Each disc 98 is provided with a pin |62 on which is suspended a metal brake band |04 which is weighted at |66. These metal bands are in permanent frictional engagement with the periphery of the paper supply reels and have a tendency to maintain the layers thereof tightly wound. The paper strips 26, being unwound from their respective supply reels, are guided into engagement with the convex track faces 66 by means of spring-urged elements |08 which are pivotally mounted at iii) on brackets H2 (see Fig. 8), secured in any suitable manner to post 22. The paper strips 26 are kept in lateral alignment with the convex track faces 66 by being confined between the brackets ||2 and discs ||4 which are mounted on the pivots Il@ and properly spaced from said brackets by collars ||6 (see Fig. 10). For replacement of any one of the supply reels, the respective disc mi] and the drum which carried the exhausted reel are removed from the supporting axis and a new reel is installed.

Paper cutting devices B Referring to Figs. 8, 10 and 13, the paper strips 26, after leaving the tracks 56, pass stationary shear blades |20 which are attached by screws |22 to post 22. Mounted on each side of post 22 by screws |24 is a bracket |26, pivotally supporting at |28 (see Fig. 13) among other structure to be described later a lever |36 which adjustably carries a knife |32 the cutting edge |34 of which cooperates with the cutting edge |36 of a stationary shear blade |26. A link |38 which passes through a lug |40 of each bracket |26 is pivotally connected at |42 to each knife carrying lever |30. Interposed between each lug |46 and a collar |44 on each link |38 is a compression spring |46 normally retaining the links and the attached knife carrying levers out of cutting engagement with their respective stationary shear blades |26, see normal position in Fig. 13. The four knife carrying levers |36 are rocked from normal position into cooperative engagement with their respective shear blades |20 by means to be described later. A sheet retaining guide |46 is secured to each side of post 22 through which the fed paper strips 26 pass. As will be noticed from Figs. 8 and 15, the guides |68 cause the paper strips 26 to bend abruptly around'the shearing edges |36 of the stationary shear blades |26 so that upon the severing of the sheets 25 from the strips 26, the former will rest on top of the shear blades |20 substantially as shown in Fig. 15.

Paper moistening devices C As best shown in Figs. 6, 8 and 11. the topmost portion of post 22 is provided with four notches |56, each being in alignment with a fed paper strip 26. Located in each one of these notches is a vessel |52 provided with a Wick |54. Communicating with each two vessels through a suitable hose connection |56 (see Fig. 1) is a reservoir |53 which kreceives a supply of water. Each of the two reservoirs is provided with an overflow |59 so as to maintain the maximum level of the water in the communicating reservoirs and vessels substantially as shown in Fig. 11. While the ends 34 of the severed paper sheets 25 in the position shown in Fig. 15 are folded underneath the bottom surface 36 of a properly located coil, the gummed sheet surfaces 38 brush past the moistening wicks |54 in a manner Vto be described later.

Cooperating paper folding devices D and E Referring particularly to Figs. l, 6, '7, 8, and 11, the brackets |26 provide tracks |69 on which are movable slides |62, retained on said tracks by gib plates |64 which are attached in any suitable manner to said slides. Pivotally mounted at |66 to each slide |62 is a member |68. Interposed between each member |68 and each slide is a paper folding blade |76 as best shown in Fig. 8. The members |68 and the folding blades |76 are held rigid on the slides |62 by a plurality of screws |72. Secured to each folding blade |76 for limited movement relative thereto by means of a screw and slot connection |74, |76 is a retainer plate |78 which is pivotally connected at |36 (see Fig. '7), to a yoke |82, straddling said retainer plate and the associated member |68 and being furthermore slidably supported by a screw pin 84 which is carried vby said member |08. Interposed between each yoke |82 and a washer |86 on each screw pin |84 is a compression spring |90 which normally tends to draw said yoke and attached retainer plate intothe extreme left-hand position shown in Fig. 8, which is determined by the extent of theoblong slot |19 in blade |18. Mounted in any suitable manner on each member |88 is an antifriction roller |92 which cooperates with one of four cam slots |94, provided in a'disc196 which is rotatably mounted on its periphery on a stationary ring plate |98. This ring plate |98 is mounted on a plurality of studs 200 which are secured in any suitable manner to the four brackets |26 which radiate from the post 22. 'The rotatable cam disc |96 is provided with two handles 202 for manual rotation of said disc (see Fig. 1). The relative positions of the cam slots |94 and cooperating rollers |92 as shown in Fig. 2 correspond to the relative positions of the retainer plates |18 and associated folding blades as shown in Fig. 8. Upon clockwise rotationV of cam disc |99 from the position shown in Fig. 2 to that shown in Fig. 3, the four slides E82 will be'emoved in the direction of arrow 204 in Fig. 9 due to the cooperation between the rollers |92 and the cam slots |94. During a cycle of such si-y multaneous movement ,of the slides |62, the retainer plates |18 thereof will simultaneously engage the four paper sheets 25 with their noses 209 which border substantially semi-circular surfaces 208 of said retainer plates; The noses S of the retainer plates V|18 fold the end portions 30 of the paper sheets 25 over the top surface 32 of coil 24,` whereas the substantially semi-circular surfaces 208 thereof rmly press the paper sheets into engagement withvthe outer confines 28 of the coil. At the time the retainer plates |18 engage said outer connes of the coil, they are stopped from further unitary movement with the slides |62 in` the direction of `arrow 204 in Fig. 8 by the coil itself. However, the slides have at this stage not yet finished their movement in the direction of arrow 204 in Fig. 8 and, there'- fore, move relative to the retainer plates |18. During such relative movement of the slides |82, the paper folding blades E18 advance into the position shown in Figs. ll or 16, thereby drawing the ends 34 of the paper sheets 25 between the lower surface 38 of the coil and the wicks |54 of the moistening devices C until the strip Vends 3B extend toward the center of the coil as shown in Fig. 16. It is obvious that during such relative movement between the paper folding blades |10 and the retainer plates |18, the compression springs |98 will be further compressed due to their interposition between the washers |86, movable with the slides |92, and the yokes |82 which are movable with the retainer plates |18. Therefore, upon counter-clockwise Vrotation of cam disc |98 as viewed in Fig. 3, the slides |62 together with the blades'Y |10 will vfirst re# tract from the coil relative to the retainer plates,

|19 until the springs |98 have expanded sufliciently to urge the screws |14 of the retainer plates into engagement with the ends of the slots |16 in the blades whereupon the latter drag the retainer plates |18 along into the inoperative or initial positionY disclosed in Fig. 8. It thus appears that one oscillation ofthe cam disc |96 results in a partial wrapping of all paper. sheets around the coil and in a moistening of i the gummed surfaces 38 of said sheets.

Referring particularly vto Figs, 8 and .9, there is shown a cylinder `22|), attached in any suitable manner to the interior of the hollow post 22. Y

ceived in a substantially rectangularv quill 232.

Quill 232 is slidable vertically within the hollow post 22 within limits defined by opposite oblong slots 234 which receive screw pins 238, threaded into post 22 as best shown in Fig. 8. Rod 230 is movable relative to quill 232 within limits defined by an oblong slot 238 through which extends a pin 240, secured to said quill 232. A compression spring 242, surrounding the stem 228 of rod 239 .and being interposed between sleeve 226 and quill 232, normally urges said rod into the position shown in Fig. 8 in which the end wall 244 of slot 238in rod 230 is resting against pin 2400i the quill.Y Quill 232 is provided at the top with four notches 249 which are in alignment with the retainer plates |18 and associated paper folding blades |18. Each one of these notches 240 pivotally receives at 248 a paper folding lever 258 Y which in the normal relative position of rod 230 and quill 232 as shown in Fig. 8 assumes the position shown in this iigure due to its pivotal connection 252 with one of'a pair of depending lugs 254 of rod 230. Each one of the levers 258 is provided with a felt pad 2965. Upon admission of iiuid pressure to the chamber 329 of cylinder 22B, the piston 222 therein together with rod 238 and quill 232 move at first in unison in the direction of arrow 258m Fig. `8 until the end walls 280 of the slots 234 in quill 232 'engage the screw pins 233. Thereafter, the rod 230 continues to move relative to the quill 232 as can be readily understood. At the end of the unitary movement of rod 238 and quill 232. the levers 250 have reached the position shown in Fig. 1'1 and folded the inwardly extending sheet ends 34 aroundthe inner ccnfines 42 of the coil substantially as illustrated.

During the succeeding continued movement of the rod` 230 relative tov4 the quill, spring 242 will be further compressed and the levers 259 will be rocked into the position shown in Fig. 18 vdue to their pivotal connections 252 with the rod 288, thereby folding the remaining sheet ends 40 over the top surface 32 of the coil and on top of the previously folded sheet ends 38 with the moistened gummed surfaces 38 contacting said ends 38.

Operation of paper cutting knives Adjustably mounted in a groove 210 of each slidev |82 is a bar 212,V having a cylindrical boss 214 which receives a spring urged plunger 21'8 as best shown in Fig, 13. Pivotally mounted at 218 to a boss 288 of each bracket 29 is a latch mem- `ber 282 which is also pivctally connected at 284 with a. link 38. Upon advancement of the slides |62 toward a properly located coil 24, the shoulder 28.5 of each spring urged plunger 218 engages Will'bereturned into the full line position byl erY means of the compression springs |46 which urge the links |38 into the position shown in Fig. 14. During the retraction of the slides |62 from the coil into the position shown in Fig. 13, the beveled surfaces 29|) and 2920i the latch members 282 and the plungers 226, respectvely, cooperate to push said plungers into their respective bosses 214 when passing the latch members in the Yfull line position of Fig. 13. VFrom therelative positions oi the spring-urged plunger 276 and the latch member 282 in most retracted position of Vthe slide |62 as shown in Fig. 13, it appears that immediately upon an advancement of the slide toward the coil a sheet 25 is severed from each supply strip 26.

Control of fluid pressure operated cylinders Referring more particularly to Figs. 1 to 5 inclusive, 9 and 14, there is mounted in any suitable manner on top of the stationary ring plate |26 a control valve 3GB of the type disclosed diagrammatically in Fig. 14. This valve is provided with a central passage 3532, receiving a sliding valve 364 therein. Any suitable conduit 3536 provides communication between a suitable supply of iiuid pressure and the valve passage 322. Suitable conduits 368 provide communication between the valve passage 322 and one side of cylinder 22D and each of the feeder cylinders 84, and other conduits 3| il provide communication between said valve passage 362 and the other side of cylinder 220 and each of the feeder cylinders 84. Mounted in any suitable manner on cam disc |96 are two angularly spaced bars SI2 and 3|4 which are adapted to shift the sliding valve 304 into either one of two positions. In Fig. 2 the bar SI2 has shifted the sliding valve 3M into the position shown diagrammatically in Fig. 14, in which huid pressure from the supply ilows through the conduit 366, valve passage 302 and-conduits 328 to the top chamber 3|@ of cylinder 22E! and to the bottom chambers 3|8 of cylinders 84. Fluid pressure in the bottom chamber 325 of cylinder 220 and in the top chambers 322 of cylinders 84 may escape through conduits -sland the valve passage 302 to the atmosphere.` Admission of fluid pressure to the various cylinders in such specified manner results in movement of piston 222 in cylinder 220 in the direction of arrow 324 in Fig. 9 into the full line position shown therein, and in movement of the feeders in the direction of arrow 86 in Fig. 8, during which movement the paper strips 26 are fed. It will be noticed from Fig. 2 that in the referred to position of the valve 354 which corresponds to the position in Fig. 14 the retainer plates |28 and paper holding blades Il!) are in the position shown in Fig. 8 since the rollers |22 of the slides |52 are shown in a position most retracted from coil 2li. Upon manual clockwise rotation of cam disc 56S from the position shown in Fig. 2 to that shown in Fig. 3, bar 354 y shifts valve 364 from the full line position into the dot and dash position shown in Fig. 14. Fluid pressure from the supply is now permitted to ow through conduit 362, valve passage 362 and conduits 3|!) into chamber 320 of cylinder 22|! and the chamber V322 of the cylinders 84. Fluid pressure in chamber 3i 6 cf cylinder 22S and in chambers SIB of cylinders 84 may escape through the conduits S and the valve passage 362 to the atmosphere. Such specied admission of fluid pressure to the various cylinders results in movement of piston 222 in cylinder 226 in the direction of arrow 324a and in movement of the feeders in the direction of arrow 336 (both in Fig. 8) However, such movement of the feeders does not result in a feeding of the paper strips as explained earlier. 1

Mode of operation Assuming that the machine is in normal or inoperative position as shown in Fig. 1, the operatorwill rst locate a coilV 24 on top of post 22 in such manner that two diagonally opposite corners of the coil are received between two pairs of locating fingers 46. In normal inoperative position of the machine, the slides |22 and the paper folding iingers 256 are in the relative position shown in Fig. Sand the previously fed ends of the paper strips 26 are in a position ready for a strip severing operation of the machine. In order to start a wrapping operation of the machine, the

operator manually rotates the cam disc |96 fromV the position shown in Fig. 2 to that shown in Fig. 3. Such manual rotation of the cam disc results in the earlier explained simultaneous advancement of the slides |62 toward the coil 24. Immediately after the slides |62 advance and before the retainer plates il@ thereof contact the paper strips, the knives |32 are actuated as earlier explained so that the retainer plates l'lB grasp just severed paper sheets 25, pressing the same against the outer connes 28 of the coil and folding the topmost sheet end portions 36 over the top surface 32 of the coil. Advancement of the slides E62 toward the coil also results in a drawing by the blades Il@ of the sheet end portions 34 past the moistening wicks |54- and into the position most clearly shown-in Fig. 16.

Manual rotation of cam disc l 96 from the position shown in Fig. 2 to that shown in Fig. 3 also results in shifting of valve 364 from the full line position into the dot-and-dash position shown in Fig. 14. As earlier explained, such shifting of valve 324 results in idle retraction of the feeders in the direction of arrow 326 in Fig. 9 and in movement of piston 222 in the direction of arrow 324e. in Fig. 9. Such movement of piston 222 causes combined movement of rod 236 and quill 232 in the direction of arrow 252 in Fig. 8 until the end walls 266 of the slots 234 in the quill engage the screw pins 236. During such combined movement of rod 236 and quill 232, the paper folding levers 255i fold the inwardly extending Vsheet ends 46 into engagement with the inner confines 42 of the coil and at the end of such combined movement the levers 256 have reached the position relative to the coil shown in Fig. 17 without changing their relativeV position with respect to rod 232 and quill 232. However, while the quill 232 has reached its stroke limit, rod 236 continues to move in the direction of arrow 262 in Fig. 8, thereby causingthe levers 256 to fold the remaining sheet portions 42 over the top surface 32 of the coil'in such manner that the moist gumrned sheet surfaces 38 come into contact with the previously folded sheet ends 3G whereby the wrapping sheets become sealed. At this stage the operator returns cam disc |66 from the position shown in Fig. 5 to that shown in Fig. 2 whereby the cam slots |94 cause the retraction from the coil of the slides |'62 and the elements carried thereby in the earlier specified manner and the arm @l2 on said cam disc shifts valve 324 from the dot and dash position into the full line position shown in Fig. 14. Such shifting of valve 364 results in movement of piston 222 and the parts connected therewith into the position shown in Figs. 8 and 9 and in movement of the feeders in the direction of arrow 86 in Fig. 8 during which movement the paper strips are fed until the foremost edges thereof reach the position shown in Fig. Y8.A Movement of piston 222 into the position shown in Fig. 9 results first in movement of rod 230 relative to quill 232 and responsive rocking of the paper folding levers 25@ from Vthe position shown in Fig. 18 to that shown in Fig. 8 or 17, thereafter rod 23B and quill 232 move in unison into the position shown in Fig. S due to the engagement of end wall 24d of slot 238 in rod 23?@ with the pin 24d which is carried by the quill.

'I'he wires of each coil vbefore and during part of the wrapping operation are loosely bound together by two spring clips lillwhich are preferably applied near two diagonally opposite corners of a coil other than the ones which are received between the two pairs of locating fingers 46 on top of the machine post 22. As best shown in Figs.- 2 to 5 inclusive, the cam disc E96 is provided with two opposite guides 402, providing longitudinal grooves 4M inV which are slidably received the pivots/36 of clip removers liti! which are provided-with thumb-handles M6; Afterthe operator has started `a wrapping operation by manuallyrotating cam disc i536 into' the position shown inFigs. 3 to 5 inclusive, he manipulates the clip removers which are then in substantial alignment with the clips i60 of a coil in the machine and strips said clips off said coil and into any suitable receptacle s cliV as the hoppers l2 which are within easy reach of the operator so that he may again apply the delivered clips to other coils to be wrapped.

While the embodiment of the present invention as herein disclosed, constitutes a preferred form,

it isv to ber understood that other forms might be adopted, all coming within the scope of the claims which follow.

I claim:

l. In a wrapping machine, the combination, of cooperating 'means movable linearly in parallelplanes for, wrapping flexible material 'around three sides of a substantially rectangular portion of an article with one end portion of the material bearing against one of said three sides; and means movable transversely of said planes and including a pivotally mounted lever for wrapping the partially wrapped material around the fourth side of said article portion and for folding the remaining end portion ofthe material into overlapping engagement with saidvone en'di portion thereof. l

2. In a wrapping machine, the combination of cooperating members movable vlinearly in parallel planes for wrapping flexible material around three sides of a substantially rectangular portion of an articlewith one end Vportion of the material bearing against one of said three sides; and means for wrapping the partly wrapped material around the fourth side of said article portion and for folding the remaining end portion of the material into overlapping engagement with said one end portion thereof, said means including two elements movable relative to each other and inra direction transverselyv of said planes, and a lever pivoted to both elements.

`3. In a wrapping machine, the combination of cooperating meanslmovable linearly in parallel planes for wrapping flexible material around three sides of "a substantially rectangular portion of an article; and means toliinish Wrapping the partly-wrapped material, said means including Vtwo elements movable relative to each other and in a direction transversely of said planes,a lever pivoted to bothelements, and means for causing unitary movement of both elements through a certain cycle in order that the lever folds the unwrapped material into engagement with the fourth side of said article portion, and then f or causing movement of one ofthe elements rela-- means for partially Wrapping eXible material around a substantially rectangular portion `of an articlasaid means including two members movable relative to each other in parallel planes, and means for causing unitary movement of both members through a certain cycle whereby one of the members clamps the material to one side of said article portion and folds an end portion of said material over another side of said article portion, and then for causing continued move,- ment of the other member relative to said one member for folding .the material around a thi-rd side of said article portion; and means movable transversely of said planes and including a pivotally mounted lever for wrapping the partly wrapped material around the fourth side of'said article portion and for folding a depending'end portion of the material into overlapping engagement with the other end portion thereof.

5. In a wrapping machine, the combination of means for supporting an article; a vessel containing water and a wick extending adjacent one plane surface of a substantially rectangular portion of a supported article; and means for wrapping a sheet of gummed flexible material around Y said article portion, said means including a member for clamping part of the sheet against the article portion and a blademovable parallelto said one plane surface in'` close proximity thereto so that another part of the sheet in the path of movement of the blade is drawn thereover, Vthe thickness of said blade being such that said other sheet part while drawn over the blade is first progressively moved past the bodily engaging wick and thus becomes moistened and a length of said other sheet part is then forced into engagement with said one plane surface, the end portion of the remaining moistened sheet part becoming sealed to the other end: portion of the sheet when in overlapping engagement therewith.

6. In a Wrapping machine, the combination ofV means for wrapping a sheet of vrlexiblematerial around an article; means adjacent the artigle for severing a sheet from a supply strip; a track having a convexV guiding surface over which the strip is guided to the severing means; and means for. feeding the strip on the track toward the severing means said feeding means forcing the strip into engagement with the convex track surface whereby said Vstrip assumesv a correspondingly curve-d shape which resists bending of the strips away from the track. i

r1. In a wrapping machine, the combinationof a locator for supporting an article` in a fixed position; cooperating means movable relative to a supported article for wrapping gummed flexible material around a portion of said.y articleand sealing the overlapping ends of the wrapper; and means moistening the gummedv material upon being wrappedaround' the article portion.

8. In a. wrapping machine', the combination of cooperating shears for severing a sheet from a' supply of flexible material; means for feeding supply material to the' severing means; means for wrapping. the sheet around an article; an-d means' including one of the shears for supporting the severed sheet in position for wrapping.

9. In a wrapping machine, the combination of movable means for partially wrapping a sheet around a certain length of an article; means actuated by the moving wrapping means for severing a sheet from a supply of flexible material; power operated means for feeding the supply material to the severing means; and a controller actuated by the moving wrapping means for causing operation of the feeding means.

10. In a Wrapping machine, the combination of movable means for partially wrapping a sheet around a portion of an article; power operated means to finish wrapping the sheet around said portion; means for severing a sheet from a supply of flexible material; power operated means for feeding supply material to the severing means; and a single controller actuated by the moving partial wrapping means for causing operation of the finish-wrapping means and the feeding means. l

11. In a wrapping machine, the combination of movable means for partially wrapping a sheet around a portion of an article; power operated means to finish wrapping the sheet around said portion; means actuated by the moving partial wrapping means for severing a sheet from a supply of flexible material; power operated means for feeding supply material to the severing means; and a single controller for causing operation of the finish-wrapping means an-d the feeding means.

12. In a wrapping machine, the combination of movable means for partially wrapping a sheet around a portion of an article; power operated means to finish wrapping the sheet around said portion; means actuated by the moving partial wrapping means for severing a sheet from a supply of flexible material; power operated means for feeding supply material to the severing means; and a single controller actuated by the moving partial wrapping means for causing operation of the finish-wrapping means and the feeding means.

13. In a wrapping machine, the combination of means for partially wrapping gummed flexible material around a portion of an article; means moistening the gummed material upon being partially wrapped around the article portion; and means to finish wrapping the moistened material around said article portion whereby the overlapping ends of the material become sealed.

14. In awrapping machine, the combination of movable means for partially Wrapping a sheet of gummed flexible material around a portion of an article; means moistening the sheet during a partial wrapping thereof; a power operated device to finish wrapping the sheet around said portion whereby the overlapping ends of the sheet becomey sealed; means for severing a sheet from a supply of gummed flexible material; a power operated device for feeding supply material to the severing means; and a single controller actuated by the moving partial wrapping means for causing operation of all devices.

15. In a wrapping machine, the combination of movable means for partially wrapping a sheet of gummed flexible material around a portion of an article; means moistening the sheet during a partial wrapping thereof; a power operated device to finish wrapping the sheet around said portion whereby the overlapping ends of the sheet become sealed; means actuated by the moving partial wrapping means for severing a sheetV from a supply of gummed flexible material; a power operated device for feeding supply material to the severing means; and a single controller for causing operation of all devices.

16. In a wrapping machine, the combination of movable means for partially Wrapping a sheet of gummed flexible material around a portion of an article; means moistening the sheet during a partial wrapping thereof; a power operated device to finish wrapping the sheet around said portion whereby the overlapping ends of the sheet become sealed; means actuated by the moving partial wrapping means for severing a sheet from a supply of gummed flexible material; a power operated device for feeding supply material to the severing means; and a single controller actuated by the moving partial wrapping means for causing operation of all devices. Y

17. In a wrapping machine, the combination Yof movable means for partially Wrapping a severed sheet of flexible material around a portion of an article; a power operated device to finish wrapping the sheet around said portion; a power operated device for feeding flexible supply material into position for wrapping; and a controller actuated by the moving partial wrapping means for causing operation of all devices.

18. In a wrapping machine, the combination of movable means for simultaneously wrapping sheets around spaced portions of an article; means for simultaneously feeding supplies of flexible material adjacent the wrapping means; and means actuatedby the moving wrapping means for simultaneously severing sheets from the fed supply materials.

19. In a wrapping machina the combination of movable means for simultaneously wrapping sheets around spaced portions of an article; means operated in timed relation with the operation of the wrapping means for simultaneously 20. In a wrapping machine, the combination of stationary means for locating a multi-sided coil; a plurality of devices for partially wrapping sheets around various sides of the located coil; a manually operable single means for operating all devices; a plurality'of power operated mechanisms to finish Wrapping the sheets around said coil sides; and a single controller for causing operation of all mechanisms.

271. In a Wrapping machine, the combination of a plurality of devices for partially wrapping sheets of flexible materialaround spaced portions of an article; a manually movable single means for operating all devices; a plurality of power operated mechanisms to finish wrapping the sheets around said portions; and a single controller actuated bythe moving single means for causing operation of all mechanisms.

22. In a wrapping machine, the combination of stationary means for locating a multi-sided coil; means for partially wrappingsheetsaround various sides of the located coil; .a plurality of power operated devices for feeding supply materials adjacent said coil sides; means for severing a sheet from eachv fed supply material; a plurality of power operated devices to finish wrapping the sheets around said coil sides; and a single controller for causing operation of all devices.

23. In a wrapping machine, the combination of stationary means for locating a multi-sided coil; a plurality of mechanisms for partially wrapping plurality of power operated devices for feedingA sheets around various sides of the located coil; a manually operable single means for operating all mechanisms; a plurality of power operated devices for feeding supply materials adjacent said coil sides; means for severing a sheet from each Y fed supplymaterial; a plurality of power operated devices to iinish wrapping the sheets around said coil sides; and a controller for causing operation of all devices.

24. In a wrapping machine, the combination of a plurality of mechanisms for partially wrapping sheets around spaced portions of an article; a manually movable single means for operating all mechanisms; a plurality of power operated devices ior feeding flexible supply materials adjacent said article portions; means for severing a sheet from each fed supply material; a plurality of power operated devices to finish Wrapping the sheets around said portions; and a controller actuated by the moving single means for causing operation of all devices.

25. In a wrapping machine, the combination of movable means for partially wrapping ,sheets around spaced portions of an article; a plurality of power operated devices for feeding flexible supply materials adjacent said article portions; means actuated by the moving wrapping means for severing a sheet from each lfed supply material; and a plurality of power operated devices to iinish wrapping the sheets around said portions. v

26. In a' wrapping machine, the'combination of movable means for partially wrapping sheets around spaced portions of an article; a plurality oi power operated devices for feeding exible supply materials adjacent said article portions; means actuated by the moving Wrapping means for severing a sheet from each fed supply material; a plurality of power operated devices to finish wrapping the sheets around said portions; and a single controller for causing operation of all devices.

27. In a wrapping machine, the combination of a plurality of movable mechanisms for partially wrapping sheets around spaced portions of an article; a manually movable single means for simultaneously operating all mechanisms; a

ilexible supply materials adjacent said article portions; means actuated by the moving mechanisms for severing a sheet from each fed supply material; a plurality of power operated devices to finish wrapping the sheets around said portions; and a single controller actuated by the moving single means for causing operation of all devices.

28. In a wrapping machine, the combination of movable means for partially wrapping a sheet of gummed material around a portion of an article; means moistening the sheet upon being partially wrapped around the article portion; power operated means to nish Wrapping the sheet around said article portion whereby the overlapping ends of the sheet become sealed; and a controller actuated by the moving partial Wrapping means ior causing operation of the nishwrapping means.

29. In a wrapping machine the combination of means for partially wrapping a severed sheet of gurnmed material around a portion of an article; means moistening the sheet upon being partially wrapped around the article portion; a power operated device Yto iinish wrapping the sheet around said article portion whereby the over-lapping ends of said sheet become sealed; a power operated device for feeding gurnmed supply material into position for wrapping; and a single controller for causing operation of all devices.

30. In a wrapping machine, the combination of movable means for partially wrapping a severed sheet of gummed material around a portion of an article; means moistening the sheet upon being partially wrapped around the article portion; a power operated device to nish wrapping the sheet around said article portion whereby the over-lapping ends of said sheet become sealed; a power operated device for feeding gurnmed supply material intoposition for wrapping; and a single controller actuated by the moving partial vvrapping means for causing operation of all devices.

LORA E. POOLE.

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