US854023A - Wrapping-machine. - Google Patents

Wrapping-machine. Download PDF

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US854023A
US854023A US32575806A US1906325758A US854023A US 854023 A US854023 A US 854023A US 32575806 A US32575806 A US 32575806A US 1906325758 A US1906325758 A US 1906325758A US 854023 A US854023 A US 854023A
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cake
web
carriage
wrapping
plate
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US32575806A
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James Henry Brady
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DAVID A KELLER
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DAVID A KELLER
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B11/00Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
    • B65B11/58Applying two or more wrappers, e.g. in succession

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  • WITNESSES JAMES HENRY BRADY WITNESSES JAMES HENRY BRADY
  • This invention relates primarily to machines for wrapping articles, such, for in' stance, as cakes of chewing gum, in wrappers severed, 1n the machlne, from a continuous web supplied to the machine in the form of a roll.
  • Figure 1 is a plan view; Fig. 2, a left-hand side'elevation with the rear side bar of the carriage removed; Fig. 3, a longitudinal sectionshowing the right-hand portion of the machine; Fig. 4, a detail side elevation of the rear end, the
  • FIG. 6 a detail longitudinal section of a portion of the hopper, the electric contact apparatus andadjacent parts;
  • Fig. 7 a longitudinal section of that portion of the machine which comprises the web severing mechanism and adjacent parts;
  • Fig. 8 a bottom plan view of the electric contact apparatus;
  • Fig. 9, a transverse section taken just in front of the web severing knife;
  • Fi 10 a detail view of the. safety mechanical ife-tripping device;
  • Fig. 11 a detail plan view of the web severing mechanism Fig. 12, a detail longitudinal.
  • Fig. .13 a bottom plan view of'the rear end of the depressorarm; Fig. 14, a plan view of one of the side folding-shoes and its arm; Fig. 15, a detail transverse section'showing the front end of the receptacle in which the wrap ed cakes are packed; Fig. 16, a planvi'ew o the trapdoor and related parts; Fig. 17, a detail sectional View, looking from the rear, showing the wrapper scoring-wheels, the. folding guides, and adj acent arts; Fig. 18, a detail bottom plan view s owing the packagepusher mechanism and the packa e chute; Fig.
  • a detail transverse section llustrating the depressor-cam and package-pusher Fig. 20, a detail side view of the subject of ig. 19; Fig. 21, (Sheet 5') a bottom plan view the cam-plate of the safety mechanical tripper of the web severing knife; Fig. 22, a perspective view illustratingthe first fold of the wrapper; Fig. 23, a perspective view illustrating the first and second folds of the wrapper; Fig. 24, a perspective view illustrating the reverse side ofthe completely wrapped cake; Fig. 25, a perspective view of a package ofv wrapped cakes; and Fig. 26, a detail side view of the mechanism for operating the trap-door.
  • the machine comprises a bed-plate 1, a base-plate 2, a reciprocating carriage 3, folding-shoes 18 and 19, carried by the reciproeating carriage, and the slack mechanism in 5 tion, the end of the machine carrying the a therear of the machine for controlling the wrapper webs.
  • the ho per 5 toward the rear of the ma chine is f red upon base-plate 2, in such a manner that the front and rear walls do not quite reach the base-plate, but leave a space slightlygreater than the thickness of a cake of the material to be wrapped.
  • a cake-ejecting bar 15, is secured to the rear cross-bar 14, of carriage 3, in such a manner that it passes under the hopper on the forward stroke of the carriage and pushes out the bottom cake.
  • the particular machine illustrated in the drawings is designed for wrapping cakes of chewing gum in a waxed paper wrapper and a covering label-wrapper. These wrappers are fed into the machine from rolls 6 and 7 in the form of webs 8 and 9, web 9 being the waxed paper and web 8 being the label-paper.
  • detent devices comprising a plate 44 over which the webs pass, and a p1voted check 51.
  • the latter is a rectangular a frame pivoted above the Webs, inclining forward and having a spring to draw the free end yieldingly down upon the surface of the upper web, so that the webs cannot be drawn backward, but may easily travel forward. This prevents the slack-apparatus from drawing the webs back out of the machine.
  • the webs pass through a slot (Figs. 3 and 6) in base-plate 2, to the upper surface of the plate, and then forward as far as shears slot66. f.
  • a suitable distance in front of the forward edge of the cake-lying upon the webs is a transverse shear-slot 66, formed in the baseplate 2. Over the shear-slot. is arranged a web severing knife 67, the operation of which is hereinafter described.
  • a folding shoe 18, is attached to-a spring 9 arm 16 secured to the front'cross-piece 13 of the reciprocating carriage 3.
  • a folding shoe 19 attached to a 65, shorter sp'ring arm 17, also secured to front cross-piece 13 underneath arm 16
  • shoe 18 (Figs. 6 and 7) strikes the upturned endsof upon and holds firmly the cient distance to leave enou h of the webibe:
  • depressor-arm 35 hinged toward the front ward terminating over shoes and 21.
  • the arm is normally elevated by a spring 31 securedrto its under side and bearing upon the base-plate (Fig. 12).
  • the rear end of ,the pins 32 adapted topass through the perforations 47 of the lateralfolding-shoes.
  • a bracket 84 secured to the under side of arm passes through a slot in base-plate 2 19) is'so arranged that when the and has a lateral extension provided with a cam-roller 33, (Figs. 18 a nd 19.) 'A camstrip .34, secured to the under 'side of one of the guide-shoes 58 of the reciprocating carriage in the path of roller 33 (Figs. 2, 18 and carriage approaches the end of its backward stroke, the
  • cam-strip 34 engages roller 33, draws down arm 35, and the pins 32 passing through perforations 47 press upon the top of the wrapped cake and pu'shit downward into a receptacle 48, attached to the under side of base-plate 2 (Figs. 12, 15 and 20).
  • This receptacle is a rectangular box of such size as to receivethe wrapped cake snugly.
  • On its right and left-hand sides are hinged-holdin jaws 37 and 38 hinged to the front and bac of the receptacle at their lower ends, and having their free ends drawn together by tension springs '49. When the wrapped cake is depressed by pins 32, 1t presses apart the jaws 37 and 38 which spring over and hold it firmly.
  • bracket 80 securedto the right-hand side-bar of carriage 3, extends downward-and laterally under base-plate 2,
  • a package-pusher gate 77 adapted to swing across the axial line ofthe machine andpush an assemblage of wrappedcakes from receptacle 48 into a horizontal chute 63 (Figs. 2, 18, 19 and 20).
  • the pivot-shaft of gate 77 is so the. gate does not swing on th but is constantly retarded by friction between the gate and its pivot-shaft, so that it will remain in whatever position placed by actuating means;
  • the gate has a backward of which it is tripped made that e pivot-freely,
  • a stop-arm 71 is secured to bracket 80 and extends downward in the path of extension 70, so that when the gate is opened it is held in transverse opera tive position (Figs. 18, 19 and 20). Stoparm 71 is provided with av stop-pin 78, for stopping gate 77 in the closed or inoperative A tripping-plate 79, for closing or folding the pivoted to the side of receptacle 48; adjacent-to gate 77 (Figs. 12 and 15). This plate is loosely pivoted so ity andfallinto the path latter is moved forward.
  • a safety cam-piece 83 is laced on arm 82 in the ath of the gate, so that on its backward stro e it will ride over the cam-piece, depressing roller 44, and pass over it without
  • the chute, or horizontal chamber 63 has notches in its u per and lower walls (Fig. 18), Y
  • the chute isof such a length that should the operator be required to attend to other matters for a moment, the machine may be kept running and several packs accoiled tension-spring 105 is secured to the on the forward stroke ofthe carriage.
  • a cord 104 attached near the free end of the knife passes over a guide-pulley attached to bracket 107 and is secured to a post or bracket 85, on the ri ht-hand side.
  • a trigger or latch 101 provided wit a'sprin 103,1s pivoted in a bracket 107, at 102.. $16 outer end of the trigger has a suitable hookto engage thefree end of the knife and hold it when it is slipped thereunder.
  • the trigger is prowith backward extension 86, at one side of pivo 102, and onthe other side with an armature adapted to be attracted by the end of bracket 107.
  • the contact 87 is mounted on the driving-shaft and the yielding s ring brush 88 is insulated on the frame. y this means the circuit is closed during a small part of the revolution of the shaft, at such time as a'perforation 64 in the label-web is passingspring 61 and ana other perforation is passing shear-slot 66.
  • the contact-point of 87 is touching brush 88(Fig. 2), the current may pass from a battery or other source of electricity through wire 89, to magnet 100, through wire 90 to brush 88', contact 87, and through the machine to contact-point 60, the other contact. point 59 being. connectedwith the other pole of the battery.
  • the circuit will be open at 87 88, and the magnet cannot be energized, so thatrtrigger 101 will drop into operative position ready to hold the knife when it is elevated by cord 104 during the forward stroke of the carriage.
  • a safety mechanical-apparatus is provided so that trigger 101 is actuated thereby immediately subsequent to the moment when the electric devices should act, (Figs. 9, 10 and 11).
  • a bracket 93, secured to the right-hand side of carriage3 is provided with a longitudinal hole in which is' mounted a shaft 92.
  • Shaft 92 is bifurcated, and its free ends spread, so that they normally spring apart and produce friction against their bearing surface in bracket 93.
  • a tripping rod 94, carried by shaft 92 extends upward at right-angles thereto, and is so arranged that it'-may have'a slight lateral motion, the friction of shaft 92 providing that it will remain in whatevenposition-it may be'placed suitable actuating means.
  • a tripper-roller 95-. is mounted on the right-hand side of stem 94, at a suitable height, so that it may be brought into the path of. extension 86 of trigger 101 and de- Bress the extension and, raise the triggen. r2 5 provided with a v 'When carriage-3 moresbackward, roller 96strikes the right-hand or outer wall of the cam.
  • cam-- roller 95 is in thepath of extension 86, and Wlll depress 1t, but, on the backward stroke of the carriage, roller 96 having been pre- Viously moved outward by the wall of the cam-groove, will be out ofthe path of eX-- tension 86.
  • trigger 101 is still elevated and extension 86 depressed while roller 95 1s passlngit, so that the safety apparatus does not operate except when required.
  • the trap-door 40 previously referred to (Figs. 7, 16, 18 and- 26) is operated by a camp1ece 9 8, secured to the side of the rightand side-bar of carriage 3.
  • a shaft 109 is mounted in blocks on the under side of the trap-door, nearthe free end (Figs. 7 and 16),
  • arm 111 extends downward from shaft 109 and terminates in an eye to which is at-' medium of arm 11 1, trap-door 40 is normally held in the raised position shown in Fig. 7.
  • a cam-block 99 On the outer end of shaft 109 is mounted a cam-block 99, which is kept'normally in a vertlcal position, Fig; 26, its lower end restng against a stop-pin 110, but its upper end is adapted to swing backward whenever pressed in that direction by cam-piece 98.
  • cam-piece 98 When the carriagemoves backward, the square end. of. cam-piece 98 will strike the upper end of cam-block 99 andswing' it backward without affecting the trap-door, but, on the forward movement the forward inclined end of cam-piece 98 strikes the upper end of block 99, which being unable to swing in the forward dlrectionon account of stop-pin 110, must sl1de down the incline of piece 98, being thereby depressed until it reaches the rear end of the cam-piece, when it is at liberty to spring up.
  • Cam-piece98 is arranged.
  • cam-block 99 is arranged to sw ng to the inoperative position on the backward I motion of the carriage.
  • Package wrapping apparatus adapted to wrap articles in labels cut from a continuous web, comprising the combination of electro magnetically controlled web severing devices adapted to automatically sever the web at determined points between the labels, mechanically operated means for actuating the web severin devices immediately after the time when t ey should be actuated by the electro magnetic devices, and means for wrapping articles in the labels.
  • acka wrapping apparatus comprising the com ination of means for feeding the article to be wrapped upon a web of wrapping material, means for folding the web upon the article and drawing them both for- WHJ'd WGb severin devices, electro magnetic means for setting them in operation controlled by the web, and mechanically operated means adapted to set said devices in operation immediately following the time when they should'be set in operation by the electro. magnetic devices.
  • Package wrapping apparatus ada ted to wrap articles in abels supplied in the orm of a continuous web, com using the combination of web tension devlces consisting of a cross bar spring pressed upon the web, a guide way in which the bar is free to 'move. and a detent acting to prevent back-draft of theweb, means for severing labels from the.
  • Packa e wrapping apparatus comprising the com ination of a ase plate, a recip- I rocatin carriage, a wrap er folding shoe'19 carried by the carriage, .a 'nged platform 40 mounted inan opening in the base plate and adapted to co-operate withthe folding shoe.
  • Package wrapping apparatus comprising the combination with means forfolding the front .and rear ends of the wrapper upon cle and means for ivering the articles so partly wrapped over said receptacle, erforated side folders ada ted to then fo d the wrapper at the sides 0 the.articles,' package depressing devices adapted to pass through such perforations and force the package into the article to be wrapped, a package receptaat impact andretaim'ng devices located at the mouth of the receptacle and serving tohold the package therein and retain the said T folds in'folded position.

Description

PATENTED MAY 21 J. H. BRADY.
WRAPPING MAGHINE.
APPLIOATION FILED JULY 12, 1906.
8 SHEETS-SHEET 1.
[N VEN T 0R. Jlgunvwuvy ind- A T T ORNE Y.
WITNESSES PATENTED MAY 21, 1907.
J. H. BRADY. WRAPPING MACHINE. APPL'IOATION FAILED JULY 12, 1906.
8 SHEETBSHEET 2.
RV" X fi m NR R mm m 0, M Y B m q Q6 m w E m W wi ww fi s No. 854,023. PATENTED MAY 21, 1907 J. H. BRADY.
WRAPPING MACHINE.
APPLIOATION FILED JULY 12. 1906.
8 SHEETS-SHEET 3.
WlTNESSES.-. INVENTOR J HENRY ATT R EY,
PATENTBD MAY 21, 1907.
J. H .,BRADY. WRAPPING MACHINE.
APPLICATION FILED JULY 12, 190th 8 SHEETS-SHEET 4.
J- :M? Y BRA Y,
ATTORAZE'Y.
A Q E I 50 M z, x e [MA TOE.
WIT/VEJJFJ- No. 854,023. PATENTED MAY 21, 1907.
J. H. BRADY. WRAPPING MACHINE.
APPLICATION FILED JULY 12, 1906.
8 SHEETS-SHEET 5.'
(NVENTOR.
A T'IORNEY.
I PATENTED MAY 21, 1907. J. H. BRADY.
' WRAPPING MACHINE.
APPLICATION FILED JULY 12. 1906.
8 SHEETS-SHEET 6.
A TTORNE Y.
N5. 854,028. PATENTED MAY 21, 1907.
J. H. BRADY. WRAPPING MACHINE.
APPLICATION FILED JULYlZ. 1906.
8 SHEETS-SHEET 7.
, I ff 7;
J I a 2 WITNESSES; INVENTOR. gwm
J. MmRYBRnDy/ mww [6, W6
PATENTED MAY 21, 1907.
J. H. BRADY. WRAPPING MACHINE. APPLICATION FILED JULY 12, 1906'.
8 SHEETSSHEET 8.
V INVENTOR.
.1 HmwBw w v 12 V X A T 7 ORNE Y.
WITNESSES JAMES HENRY BRADY, or
ATENT. OFFICE.
LOUISVILLE, KENTUCKY, ASSIGNOR OF ONE HALF TO DAVID A. KELLER, OF LOUISVILLE, KENTUCKY.
WRAPPING-MACHINE.
Specification of Letters Patent.
Patented May 21, 1907.
Application filed July 12, 1906. Serial No. 325.758.
To all 1071 0112 it may concern:
Be it known that 1, JAMES HENRY BRADY, a citizen of the United States, residing at Louisville, in the county of J eflerson and State of Kentucky, have invented a new and useful Wrapping-Machine, of which the following is a specification.
This invention relates primarily to machines for wrapping articles, such, for in' stance, as cakes of chewing gum, in wrappers severed, 1n the machlne, from a continuous web supplied to the machine in the form of a roll.
It comprises improvements upon the machinedisclosed in my application Serial No. 253,517, filed April 3, 1905.
In the accompanying drawings: Figure 1 is a plan view; Fig. 2, a left-hand side'elevation with the rear side bar of the carriage removed; Fig. 3, a longitudinal sectionshowing the right-hand portion of the machine; Fig. 4, a detail side elevation of the rear end, the
paper rolls, and the slack-apparatus Fig. 5,
an end elevation of the slack-apparatus Fig.
6, a detail longitudinal section of a portion of the hopper, the electric contact apparatus andadjacent parts; Fig. 7, a longitudinal section of that portion of the machine which comprises the web severing mechanism and adjacent parts; Fig. 8, a bottom plan view of the electric contact apparatus; Fig. 9, a transverse section taken just in front of the web severing knife; Fi 10, a detail view of the. safety mechanical ife-tripping device; Fig. 11, a detail plan view of the web severing mechanism Fig. 12, a detail longitudinal.
section of the trap-door, the depressor mechanism and adjacent parts; Fig. .13, a bottom plan view of'the rear end of the depressorarm; Fig. 14, a plan view of one of the side folding-shoes and its arm; Fig. 15, a detail transverse section'showing the front end of the receptacle in which the wrap ed cakes are packed; Fig. 16, a planvi'ew o the trapdoor and related parts; Fig. 17, a detail sectional View, looking from the rear, showing the wrapper scoring-wheels, the. folding guides, and adj acent arts; Fig. 18, a detail bottom plan view s owing the packagepusher mechanism and the packa e chute; Fig. 19, a detail transverse section llustrating the depressor-cam and package-pusher; Fig. 20, a detail side view of the subject of ig. 19; Fig. 21, (Sheet 5') a bottom plan view the cam-plate of the safety mechanical tripper of the web severing knife; Fig. 22, a perspective view illustratingthe first fold of the wrapper; Fig. 23, a perspective view illustrating the first and second folds of the wrapper; Fig. 24, a perspective view illustrating the reverse side ofthe completely wrapped cake; Fig. 25, a perspective view of a package ofv wrapped cakes; and Fig. 26, a detail side view of the mechanism for operating the trap-door. a
For the purpose of the following descripdriving shaft is regarded as the front.
The machine comprises a bed-plate 1, a base-plate 2, a reciprocating carriage 3, folding- shoes 18 and 19, carried by the reciproeating carriage, and the slack mechanism in 5 tion, the end of the machine carrying the a therear of the machine for controlling the wrapper webs.
The ho per 5 toward the rear of the ma chine is f red upon base-plate 2, in such a manner that the front and rear walls do not quite reach the base-plate, but leave a space slightlygreater than the thickness of a cake of the material to be wrapped.
A cake-ejecting bar 15, is secured to the rear cross-bar 14, of carriage 3, in such a manner that it passes under the hopper on the forward stroke of the carriage and pushes out the bottom cake.
The particular machine illustrated in the drawings is designed for wrapping cakes of chewing gum in a waxed paper wrapper and a covering label-wrapper. These wrappers are fed into the machine from rolls 6 and 7 in the form of webs 8 and 9, web 9 being the waxed paper and web 8 being the label-paper.
Since the webs are drawn into the machine by a reciprocating shoe 18, attached to carriage 3, the draft upon the webs is intermittent and somewhat abrupt and they would be liable to be torn because of-the inertia of .the rolls. It is therefore desirableto provide mechanism for setting the rolls gradually into motion. .This is attained by the tension or slack-apparatus (illustrated in Figs. 2, 4 and 5) comprising slotted uprights '39, and a slotted plate 41 provided with rollers adapted to travel in the slots of the uprights, and having lateral extensions provided with eyes to receive tension springs 42. Plate 41 is preferably made of; sheet aluminium, on account of its lightness, and the portion removed from the, slot intended to accommodate the:
webs left unsevered at the u per edge and curved so as to form a smoot rounded surface under which the webs may slide.
From the slack-apparatus, the webs pass. through detent devices (Fig. 4) comprising a plate 44 over which the webs pass, and a p1voted check 51. The latter is a rectangular a frame pivoted above the Webs, inclining forward and having a spring to draw the free end yieldingly down upon the surface of the upper web, so that the webs cannot be drawn backward, but may easily travel forward. This prevents the slack-apparatus from drawing the webs back out of the machine.
From paper-checkfil the webs pass throu h electric co tact apparatus secured to t e bottom of baselate 2 (Fig. 6) and comprising a horizontal partition.plate 45, between the top of which and under face of the base plate web 9 travels. Under plate .are secured the binding post 46, contact-spring 61, which carries contact-point 59, both insulated from the machine; and a contact-fnember electrically in contact with the ma chine. Members 60 and 61 may, respectively, be adjusted by screws 62, 62. Label- Web 8 is provided with perforations 64,.mid-
way between the printed labels (Fig. 8).
When the webs 8 ahd 9 are fed forward and a perforation comes opposite the, point on the end of spring 61, the point springs up through the perforation into a perforation in partition plate 45, and contact-point 59 rises mto contact with member .60,\completing an electric circuit which effects-operation of the web severing knife, hereinafter described.
From the electric contact apparatus, the webs pass through a slot (Figs. 3 and 6) in base-plate 2, to the upper surface of the plate, and then forward as far as shears slot66. f.
When bar 15 ejects a cake from ho per 5, it is deposited upon the webs 8 and 9 .ig. 6 When this occurs a pairaof springactuated dogs 55, pivoted in front'of the hopper, drop behind the rear edge of the cake an prevent -its moving-backward; and a'pair. of spring gers '56, pivoted above dogs 55,-
actuated. press down upon the cake so that it rests firmly upon the'webs. Under the ends of webs 8 and 9 in front of the cake, is a spring actuated web elevating finger 57, pivoted in a slot in base-plate 2, and acting to throw up the free ends of the web (Fig. 6). V a
A suitable distance in front of the forward edge of the cake-lying upon the webs is a transverse shear-slot 66, formed in the baseplate 2. Over the shear-slot. is arranged a web severing knife 67, the operation of which is hereinafter described.
A folding shoe 18, is attached to-a spring 9 arm 16 secured to the front'cross-piece 13 of the reciprocating carriage 3. In front of shoe 18, is a folding shoe 19 attached to a 65, shorter sp'ring arm 17, also secured to front cross-piece 13 underneath arm 16 On the backward stroke of the carriage, shoe 18 (Figs. 6 and 7) strikes the upturned endsof upon and holds firmly the cient distance to leave enou h of the webibe:
hind it to form the second old or rear fold, knife 67 operates and the webs are severed, traverse thereof immediately ceasing. The cake is, however, carried forward over a trapdoor 40, located in an opening in the base-' plate and hinged at its rear end. .As the cake passes over the trap-door 40, the latter is depressed bya cam-piece attached -to carriage 3, and is released and riseswhenthe rear edge of the cake has passed its front. I
1 edge. In this way the front edge'of the door forms an abutment for the cake and prevents .stroke ofi'shoe 18. Springactuated presserrollers 24 and 25,- are so arranged that thecake is pushed under them by shoe 18, and they hold the first fold of the wrappers down upon the cake after shoe has movedback. Shoe 19, movingbackward (Figs. 6, 7 and 12) with shoe 18, rides over the cake deposited in front of the trap-door until the front edge of its folding or Presser-foot 69 has passed beyond the severed ends of thewrappers, which have been turned up by the front edge of trap-doorAO. To prevent them remaining flat upon the trap-door on account of the rubbing effect of shoe 19 asit passes over them, there is provideda spring-actu- -ated finger 43, normally protruding-through the trap-door and acting to elevate the ends of the wrappers. On the next forward stroke of the carriage when shoe 18 brings forward another cake, the end of Presser-foot 69 of the cake moving backward on the backward the wrappers, carries them over the top of the-cake (Fig. 12) laps them ever the first folded ends now-held down by Presser-rollers 24 and 25 and the heel of shoe-19 depresses finger 43, engages the rear ed e of the cake," carrying it and the wrapper orward under right-hand and left-hand scoring d1sks,2 2 and Izo ,overthe side edges of the cake and scored.
23, by which the paper isdrawnd'own closely While the scoringjs being done, the side the sides vertically, is drawn beyond the lat-1 eral folding- guides 26 and 27 and between side folders 20, 21, where it is, left, the carriage now moving backwardly again. The
edges of the wrapper are turned upward by lateral folding- shoes 29 and 21, are secured to 3 This causes the shoes to slide over the top of the cake, so as to press the side folds of the wrapper firmly down upon the cake. Shoes 20 and 21 (Fig. 14) are provided, along their adjacent edges, with perforations 47: The cam-pieces 73 and 7 4are so arranged that the I one. shoe moves over the cake a little in advance of the other so that one fold is caused to' lap .over. the other, and when they have reached the end of their folding movement they are caused to remain at rest for-a moment, while pins 32 passing down through perforations47, force the wrapped package end and on top of base-plate 2, extends rear' arm 35 is provided with the down into a holder or receptacle, the construction of the devices being as follows: A
depressor-arm 35, hinged toward the front ward terminating over shoes and 21. l The arm is normally elevated by a spring 31 securedrto its under side and bearing upon the base-plate (Fig. 12). The rear end of ,the pins 32, adapted topass through the perforations 47 of the lateralfolding-shoes.
A bracket 84 secured to the under side of arm passes through a slot in base-plate 2 19) is'so arranged that when the and has a lateral extension provided with a cam-roller 33, (Figs. 18 a nd 19.) 'A camstrip .34, secured to the under 'side of one of the guide-shoes 58 of the reciprocating carriage in the path of roller 33 (Figs. 2, 18 and carriage approaches the end of its backward stroke, the
cam-strip 34 engages roller 33, draws down arm 35, and the pins 32 passing through perforations 47 press upon the top of the wrapped cake and pu'shit downward into a receptacle 48, attached to the under side of base-plate 2 (Figs. 12, 15 and 20). This receptacle is a rectangular box of such size as to receivethe wrapped cake snugly. On its right and left-hand sides are hinged-holdin jaws 37 and 38 hinged to the front and bac of the receptacle at their lower ends, and having their free ends drawn together by tension springs '49. When the wrapped cake is depressed by pins 32, 1t presses apart the jaws 37 and 38 which spring over and hold it firmly.--
The open bottom of receptacle 481s guard 'ed by'a transverse roller 44 (Figs. 1, 19 and 20) mounted on a spring actuated arm 82 secured to a transverse shaft carrying an arm so that the two arms move in unison. A 6 5 coil-spring 53 applied to this shaft acts to " Arms 82 and 50 by roller 44. a so that the extension 7 0, by means position illustrated b gate, 1s
.strike the lower edge of p yieldingly press the roller 44 against the lowermost of the wrapped cakes in receptacle 48. and their pivot shaft are mounted on a bracket 54, secured to the under side of base-plate 2. The-pile of cakes in the receptacle ainst the retaining jaws 37, 38,
al folds of the wrappers are is constantly pushed upward held firmly. bracket 80, securedto the right-hand side-bar of carriage 3, extends downward-and laterally under base-plate 2,
and has pivoted in its end a package-pusher gate 77, adapted to swing across the axial line ofthe machine andpush an assemblage of wrappedcakes from receptacle 48 into a horizontal chute 63 (Figs. 2, 18, 19 and 20).
The pivot-shaft of gate 77 is so the. gate does not swing on th but is constantly retarded by friction between the gate and its pivot-shaft, so that it will remain in whatever position placed by actuating means; The gate has a backward of which it is tripped made that e pivot-freely,
or opened. An adjustable tripping-pin 72,
is placed in arm 50. A stop-arm 71 is secured to bracket 80 and extends downward in the path of extension 70, so that when the gate is opened it is held in transverse opera tive position (Figs. 18, 19 and 20). Stoparm 71 is provided with av stop-pin 78, for stopping gate 77 in the closed or inoperative A tripping-plate 79, for closing or folding the pivoted to the side of receptacle 48; adjacent-to gate 77 (Figs. 12 and 15). This plate is loosely pivoted so ity andfallinto the path latter is moved forward.
It will be understood that if the gate is in the open position (Figs. 18 and 19), as it movesbackward to carry a pack of cakes into chute 63, the upper ed e of the gate will late 79 and raise the plate, which will drop' as soon as the gate has passed. When the gate returns on the forward stroke, it will strike the perpendicular edge of the plate, and be closed pr folded back in the position shown by dotted lines in Fig. 18, in which position being on a friction pivot, it will remain util it is opened again by means provided therefor.
As the wrapped cakes are pressed down through receptacle 48, they press roller 44 and its arm 82 gradually downward, and arm 50 carrying tripping-point 7.2, is gradually raised. for instance, that when s x wrap ed cakes appear under receptacle 48 on ro ler 44, it engages extension 70 of the gate on the forward stroke of the carriage and swings the gate open, so that on the backward stroke it en ages the six cakes immediately above,thc rol er and pushes them into chute 63. It is obvious that as soon as the front end of the cakes pass beyond roller 44, the roller springs of the gate as the dotted lines in Fig. 18.
as to drop by grav-- O I electro magnet 100, mounted on the. upper upward into contact in ury.
with the bottom cake left in the receptacle. The gate, on the re turn stroke, is closed by plate 79 as stated.
To prevent the gate in its backward movement from striking roller 44, should the gate be accidentally swung into the open position, a safety cam-piece 83, is laced on arm 82 in the ath of the gate, so that on its backward stro e it will ride over the cam-piece, depressing roller 44, and pass over it without The chute, or horizontal chamber 63 has notches in its u per and lower walls (Fig. 18), Y
so'that the pac ges of cakes may be grasped between the fore-finger and thumb and removed. The chute isof such a length that should the operator be required to attend to other matters for a moment, the machine may be kept running and several packs accoiled tension-spring 105 is secured to the on the forward stroke ofthe carriage.
keep it in the raised vide lower end of the.cord and to bed-plate 1 so that it continually pulls downward on the knife. A cord 104 attached near the free end of the knife, passes over a guide-pulley attached to bracket 107 and is secured to a post or bracket 85, on the ri ht-hand side.
bar of carriage 3 (Fi 1 an 2). By this means the free end o the knife is drawn lll p o }position a trigger or latch 101 provided wit a'sprin 103,1s pivoted in a bracket 107, at 102.. $16 outer end of the trigger has a suitable hookto engage thefree end of the knife and hold it when it is slipped thereunder. The trigger is prowith backward extension 86, at one side of pivo 102, and onthe other side with an armature adapted to be attracted by the end of bracket 107. By this means, as soon asan electric circuit passes through magnet 100, trigger 101 is raised, and knife 67 is '55 .ofthe-krnfe thus arranged, provides for-the proper seve drawn down by its spring. The quick action 0 of the web in transit, without interruption-o itsmotion.-
. I To prevent the electric-circuit being closed 6.
during he entire time-that the paper webs are at restafter "the contact points 59-and 60 being then'in contact I byreason ofspring61havingentered a-perforation 4 1n the label-web, a revolving contact 87, an a contact brush 88 areprovide'd at.
knifehas been, tripped,
the forward an of the machine. The contact 87 is mounted on the driving-shaft and the yielding s ring brush 88 is insulated on the frame. y this means the circuit is closed during a small part of the revolution of the shaft, at such time as a'perforation 64 in the label-web is passingspring 61 and ana other perforation is passing shear-slot 66. When the contact-point of 87 is touching brush 88(Fig. 2), the current may pass from a battery or other source of electricity through wire 89, to magnet 100, through wire 90 to brush 88', contact 87, and through the machine to contact-point 60, the other contact. point 59 being. connectedwith the other pole of the battery. If the perforation in the label web has reached the position in which the oint at the free end of spring 61 may enter, t e circuit will be closed between points 59 and 60 (Fig.6) and the current may pass through wire 91, (Fig. 2) and return to the battery. Trig er 10.1 will be attracted, and the knife will descendand sever the aper. As soon as the contact-point 87 as passed out of engagement with brush 88, although points 59 and 60 may be in contact,
the circuit will be open at 87 88, and the magnet cannot be energized, so thatrtrigger 101 will drop into operative position ready to hold the knife when it is elevated by cord 104 during the forward stroke of the carriage.
To insure operation of the knife, even though there be an accidental absence of a perforation in the label-web, or from other causes, when the circuit may not be properly closed between points 59 and 60 or be otherwise ineflicient, a safety mechanical-apparatus is provided so that trigger 101 is actuated thereby immediately subsequent to the moment when the electric devices should act, (Figs. 9, 10 and 11). A bracket 93, secured to the right-hand side of carriage3 is provided with a longitudinal hole in which is' mounted a shaft 92. Shaft 92 is bifurcated, and its free ends spread, so that they normally spring apart and produce friction against their bearing surface in bracket 93.' A tripping rod 94, carried by shaft 92 extends upward at right-angles thereto, and is so arranged that it'-may have'a slight lateral motion, the friction of shaft 92 providing that it will remain in whatevenposition-it may be'placed suitable actuating means.
A tripper-roller 95-. is mounted on the right-hand side of stem 94, at a suitable height, so that it may be brought into the path of. extension 86 of trigger 101 and de- Bress the extension and, raise the triggen. r2 5 provided with a v 'When carriage-3 moresbackward, roller 96strikes the right-hand or outer wall of the cam.
9. In this position, it will be seen, cam-- roller 95 is in thepath of extension 86, and Wlll depress 1t, but, on the backward stroke of the carriage, roller 96 having been pre- Viously moved outward by the wall of the cam-groove, will be out ofthe path of eX-- tension 86. During the normal action of the electric contact apparatus, trigger 101 is still elevated and extension 86 depressed while roller 95 1s passlngit, so that the safety apparatus does not operate except when required.
The trap-door 40, previously referred to (Figs. 7, 16, 18 and- 26) is operated by a camp1ece 9 8, secured to the side of the rightand side-bar of carriage 3. A shaft 109, is mounted in blocks on the under side of the trap-door, nearthe free end (Figs. 7 and 16),
and arm 111 extends downward from shaft 109 and terminates in an eye to which is at-' medium of arm 11 1, trap-door 40 is normally held in the raised position shown in Fig. 7.
On the outer end of shaft 109 is mounted a cam-block 99, which is kept'normally in a vertlcal position, Fig; 26, its lower end restng against a stop-pin 110, but its upper end is adapted to swing backward whenever pressed in that direction by cam-piece 98. Block 991s ke t normally in the upright pos1t1on by a coi ed torsion-spring mounted on shaft 109 (Fig. 16).
When the carriagemoves backward, the square end. of. cam-piece 98 will strike the upper end of cam-block 99 andswing' it backward without affecting the trap-door, but, on the forward movement the forward inclined end of cam-piece 98 strikes the upper end of block 99, which being unable to swing in the forward dlrectionon account of stop-pin 110, must sl1de down the incline of piece 98, being thereby depressed until it reaches the rear end of the cam-piece, when it is at liberty to spring up. Cam-piece98 is arranged. at such a position on the carriage that, when foot 18 brmgs a cake an'di's about to slide it upon trap-door 40, the tra poor is depressed, so as to form a level surface for the cake to slide over, and, as soon as the rearedge. of' the cake has passedthe front edgeof the trap:
door, it springs up behind the cake, so-as to prevent its backward motion, and elevates the severed ends of the wra pers (Fig. 7) as previonsly described. It W1 1 be understood that trap-door 40 must not be depressed on the backward stroke of the carriage because on this stroke it is necessary for shoe 19 to slide back over the cake, and hence the cake must be held in position and not be permitted to be pushed back by the shoe. Therefore cam-block 99 is arranged to sw ng to the inoperative position on the backward I motion of the carriage.
The successive folds of the wrappers and the finally assembled package are shown in Figs. 22, 23, 24 and 25 respectively.
I claim as my invention:
1: Package wrapping apparatus adapted to wrap articles in labels cut from a continuous web, comprising the combination of electro magnetically controlled web severing devices adapted to automatically sever the web at determined points between the labels, mechanically operated means for actuating the web severin devices immediately after the time when t ey should be actuated by the electro magnetic devices, and means for wrapping articles in the labels.
' 2. acka wrapping apparatus, comprising the com ination of means for feeding the article to be wrapped upon a web of wrapping material, means for folding the web upon the article and drawing them both for- WHJ'd WGb severin devices, electro magnetic means for setting them in operation controlled by the web, and mechanically operated means adapted to set said devices in operation immediately following the time when they should'be set in operation by the electro. magnetic devices.
3. Package wrapping apparatus ada ted to wrap articles in abels supplied in the orm of a continuous web, com using the combination of web tension devlces consisting of a cross bar spring pressed upon the web, a guide way in which the bar is free to 'move. and a detent acting to prevent back-draft of theweb, means for severing labels from the.
web and means for wrapping articles in the labels 4. Packa e wrapping apparatus, comprising the com ination of a ase plate, a recip- I rocatin carriage, a wrap er folding shoe'19 carried by the carriage, .a 'nged platform 40 mounted inan opening in the base plate and adapted to co-operate withthe folding shoe.
and means whereby on reciprocation of the carriage the platform is raised and lowered as required.
5. Package wrapping apparatus, comprising the combination with means forfolding the front .and rear ends of the wrapper upon cle and means for ivering the articles so partly wrapped over said receptacle, erforated side folders ada ted to then fo d the wrapper at the sides 0 the.articles,' package depressing devices adapted to pass through such perforations and force the package into the article to be wrapped, a package receptaat impact andretaim'ng devices located at the mouth of the receptacle and serving tohold the package therein and retain the said T folds in'folded position.
. 6. Packa e wrapping applaratus, compris-.
ing the com ination'of mec anism for wrapping-articles or cakes in wrappers, a receptacle to which the completed packages are successively delivered as completed and in which they accumulate, a yielding bottom depressed by the..accumulation of acka es, means for periodically removing om 't e accumulation or stack of packages-a redetermined number or group thereof an (an elongated ing the com inationof mec chute or passage way to which such groups ofpacka es are successively delivered. r
7. Pac a e wrapping applaratus, comprisi anism for wraparticlesfor cakes in wrap ers, a recepta= j 016. to which the completed packages are sucgroups of packages are successively delivered. I l k In testimony whereof, I have hereunto subscribed my name. I
JAMES HENRY BRADY. v Witnessesi DAVID A. KELLER,
WI LIAM CoLGAN.
US32575806A 1906-07-12 1906-07-12 Wrapping-machine. Expired - Lifetime US854023A (en)

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