US1359772A - Manufacture of paper cups - Google Patents

Description

J. V. WECKBAUGH.

MANUFACTURE OF PAPER CUPS.

APPLICATION man MAY 17, 1919.

1 ,359,'7'Z2, Patented Nov. 23, 1920.

6 SHEETSSHEET I.

lNVfA/TOR ATTORNEY J. V. WECKBAUGH.

MANUFACTURE OF PAPER CUPS. 7 APPLICATION FILED MAY I7, I919. 1,359,772. Patented Nov. 23,1920.

6 SHEETS-SHEET 2.

was

J. V. WECKBAUGH' MANUFACTURE OF PAPER CUPS.

' APPLICATION FILED MAY 7 1919- 1,359,772; Patented NOV. 23, 1920.

a SHEETS-SHEET 3.

FIG 7 {,FIGM

ATTORNEY J. V. WECKBAUGH.

MANUFACTURE OF PAPER CUPS.

APPLICATION FILED MAY 17, 1919.

6 SHEETS-SHEET 4.

.1 4,359,772. Patented Nov. 23, 1920.

' .FIGB

ATTORNEY J. V. WECKBAUGH.

MANUFACTURE OF PAPER CUPS.

APPLICATION FILED MAY 11. 1919.

1 ,359,772, Patented Nov. 23, 1920.

6 SHEETS-SHEET 5- ATTORNEY FIGLII J. V. WECKBAUGH.

MANUFACTURE OF PAPER CUPS.

APPLICATION FILED MAY 17. 1919.

1,359,772. Patented Nov. 23,1920."

' 6 SHEET SHEET 6- I mm ll- (I 1055p) 1 WEJ/IEA 06/,

FIGJS 5 I Y UNETED STATES JOSEPH V. WECKBAUGH, 0F GREENWICH, CONNECTICUT.

MANUFACTURE OF PAPER CUPS.

Application filed May 17, 1919. Serial No. 297,762.

To a]! whom it may concern:

Be 1t known that I, JOSEPH V. \VEGK- BAL'GH, a citizen of the United States, and a resident of Greenwich, in the county of F airfield and State of Connecticut, have invented certain new and useful Improvements in the Manufacture of Paper Cups,

The invent-ion has for its object to provide a cup of this type. from a suitable paper blank which is folded in an extremely simple manner to provide a liquid-tight'container having a large capacity for the amount of material employed. A further object of the invention consists in providing a substantially rigid mouthpiece or lip therefor and the edge of which shall not be sharp, as is the case usually with cups of the types heretofore produced. The cup,

moreover, lends itself readily to manufacture in a sanitary manner. For example, it may be produced from a continuous strip of material which will require no handling, the said material, also, remaining sealed or inclosed until the actual time of manufacture, and the cup being capable of being manufactured and dispensed entirely by mechanical means. The invention, also, has for its object the particular method of producing such cups as well as novel mechanism for carrying out the same.

In the accompanying drawings, which illustrate the inventionv Figures 1 to 4 are diagrammatic views illustrating the different stages in the manufacture of a cup.

Fig. 5 is a perspective view of a completed cup.

Fig. 6 is a perspective view of the assembled mechanism.

Fig. 7 is a section taken on the line 77, Fi 6.

igs. 8 and 9 are sections taken, res ectively, on the lines 8-8 and 99, Fig.

Fig. 10is afragmentary detail in plan. Fig. 11 1s a section taken on the line 11-- 11, Fig. 10.

Fig. 12 is a section taken on the line 12- 12, Fig. 7.

Specification of Letters Patent. Patented N0". 23, 1920.

Fig; 13 is a fragmentary detailof the opcrating and feeding mechanism.

Fig. 11 is a fragmentary section taken on the line 14-14, Fig. 7. f p 1 Fig. 15 is a section taken on the line 15- 15, Fig. 7, with portions broken away.

Similar characters of reference designate corresponding parts throughout the several views.

Referring to Figs. 1 to 5, which illustrate more particularly the details of the cup and the method ofmanufacture thereof. 20 designates a blank of a suit-able grade of paper of the required thickness and stiffness. This blank may be obtained in suitable lengths as from a continuous strip 21, being out therefrom alongthe line 22 to provide a parallelogram of substantially equal sides and generally in the form of a square. One of the corners, for example, the corner 23, of the blank is turned backwardlyalong a line 24 perpendicular to the diagonal 25 of the parallelogram. and the blank itself is then turned over about the said diagonal 25 as an axis or folded along same, whereupon the full- length edges 26 and 27 are secured to each other in any suitable manner, for example by folding same inwardly. The edges may, also. be secured to each other by means of a suitable adhesive, or may. be

folded over again, or, preferably. are se-,

cured by means of a suitable binding strip or metal tape 28 which is bound over same, Fig. 4. This completes the cup which is thus securely sealed approximately from bottom to top along the lengthwise edges i '26 and 27, in manner indicated, providlng,

also, a suitable mouthpiece 29. The latter is reinforced and stiffened by the backwardly turned corner 23, which serves, also, to hold the cup open as well as toround off that of a roll, as hereinafter set forth, the inward the strip 21 of paper and simultanesaid diagonal.

gether with the coacting lengthwise edges 26 ously therewith a strip 28 of binding material such as metal. The latter is preferably arranged to'be fed beneath the paper 21 "along one edge thereof and at a slightly lesser rate than that of the strip in order to make use of the same feed rolls for both and to effect a saving of metal, as hereinafter set forth. lVhen the requisite quantity has been fed forward, both paper and metal strip are out along the line 22 to provide the blank 20. Thereupon, or simultaneously with the feeding of the material, suitable means are-caused to deflect the corner 23,

preferably at an angle of forty-five degrees to the direction of travel .of the paper, after which the deflected portion is gripped and turned under, and suitable line impressions 30 also preferably made therein along radii struck from the diagonally opposite corner. These impressions formed in the turned-over corner portion serve to assist the subsequent turning operation and in the holding of the material in turned position, as well as to facilitate the finalshaping of the cup, thereby adding to the appearance thereof. The entire blank is thereupon turned over about the diagonal 25 asia'n axis or folded along The strip of metal28, to-

and 27, is then folded over and secured or bound together.

The mechanism for executing these varipus operations is shown assembled in Fig. 6,

and wherein 40' designates a suitable framing or housing for retaining the members and mounted on 'abase 41, and the whole may be inca'sed in a suitable casing (not The said framing is open near the bottom to allow of the completed cup being discharged therefrom. Suitable operating mechanism is provided, for example a crank 42 which projects from the side thereof, and is designed to be given one or more complete turns to effect the manufacture and discharge of a cup. Generally, one complete turn will serve to effect the manufacture and discharge of the cup, the paper and strip to provide a blank for the next cup being fed forward by the return movement of the mechanism which is automatically accomplished as hereinafter set forth, when the working turn is completed;

In the upper portion of the framing, there is removably mounted a roll 45 of the paper and adjacently thereto a roll 46 of the binding stock, both being mounted upon a suitalong its one edge 26. Tofeed this strip forward, the same passes over a reduced portion of the lower feed roller 52, Fig. 14, which, moreover, is provided with pins or teeth 54 to engage the perforations of the strip, the latter being held to the periphery of the lower roller by a guide 55. Owing to -thefact that the periphery of the roller for the strip portion is less than that of the portion of the roller for the paper, a lesser amount of metal will be advanced relatively to the paper, as the rollers are rotated.

To effect the rotation of the said rollers 51 and 52, the shaft 56 of the upper feed roller carries at its outer end a sprocket 57 connected by a chain 58 with a sprocket 59 at the outer end of acam shaft 60. To the latter is attached suitable operating means, for example the crank or handle 42.

However, the feeding action occurs only after one or more revolutions of the crank has been effected-that is to say, for example, on the return movement of the handle, which may be actuated automatically under the action of a return spring 61 connected through cord 62 with sprocket 59 on the cam shaft. To secure this action, the shafts 56 and are each provided with, a ball clutch or similar device 63 and 64 to connect same to their respective sprockets, the clutches being arranged to act in opposite directions, whereby only one of the two shafts is active or operable at a time, the other being idle during this period. 'The paper and metal are, therefore, fed only after the operations of producing a cup have been completed, and are then brought In feeding the paper forward into the cup-forming mechanism hereinafter described, it is suitably guided by a lateral guide 65 along its edge 26, and its forward corner 23 is caused to abut a downwardly and backwardly directed folding member 66, Fig. 12, which causes the said corner portion of the paper to be deflected as shown in Fig. -1 of the drawings. Thereupon, after having been fed forward a predetermined length and deflected as shown, the paper is in position for the operation of forming the cup.

Beneath the paper thus located and with corner deflected, is pivotally mounted a turning member having at the, rear corner a series of pins 71 designed to hold the paper. To cause the said pins to engage the paper, an arm 72 is pivoted to the frame and carries a projection 73 directed beneath the side portion of the turning member to lift same under the action 'of a cam 71, rotatable with the shaft 60, as the handle is rotated in its operating direction. The arm 72 is held in this position until the operation of rotating the turning member begins, the cam 74 there-for being designed ac cordingly. A suitable abutment member 75, pivoted to the frame,- is provided over the portion of the paper and designed to be engaged by the pins, for example being slitted for this purpose. The same is held in locked or fixed position, for a sufiicient period to allow of the proper engagement, by a spring drawn arm 76 engaging a projecting pin 77 thereof, said arm together with the member 7 5 being designed to move out of the path of member 70 at the proper time to allow of the subsequent rotation of the said turning member.

The paper having been thus located and held to the member 70, the deflected portion 23 is completely turned under about a line 21 perpendicular to the diagonal passing through said corner portion 23, the same being accomplished through the action of the abutment 66 and a further plate 80 forming gripping members or jaws which are hinged at the forward portion of the turning member 70 and releasing as soon as the paper is folded. The inner faces of the jaws 66 and 80 are provided with suitable corrugations arranged as radii struclc from the diagonally opposite corner of the paper; and as the gripping action takes place. the impressions 30 are formed therey in the paper, the same serving to set the paperin its turned position and to facilitate the subsequent turning operation as well as giving a finished appearance to' --of a bell crank whose other arm 83 is inoved by a cam 8-1011 the cam shaft 60. A spring 85 insures the return of the incline member, and a spring 86 mounted within the plunger 81 returns the latter inwardly as .the incline member is returned to normal position, a further spring 87 serving to open the jaw members. fold may occur substantially along the line 24, the paper at one side of the jaws is In order that the arranged to be supported by the arm 73. At the opposite side of the line of fold 24, an arm 89 pivoted to the frame is arranged to be swung under the paper in supporting position as by means of an extension 90 of the arm 72.

Immediately preceding the operation of turning, the one edge 26 of the paper is caused to be securely gripped from below between a jaw hereinafter described and the'guide A spring 96 operates to draw the jaw 95 upwardly, the said jaw being pivoted to the frame and an extension 97 thereof being released through the upward movement of an abutment or pin 98 attached to the movable knife 99 of the cutting or shearing member. The latter is composed of the said movable knife 99 and a stationary knife 100. To the movable knife 99 are secured return springs 101 to return the knife to normal position, the said springs 101 being more powerful than spring 96 which tends to lift the jaw. Simultaneously with the holding of the paper. the rear end of same is out along the line 2:2, Fig. 1, by means of the shearing mechanism hereinbefore described, the movable knife 99 being operated from cams 102 on the cam shaft 60.

'The paper blank thus provided is held by the pins 71 to the turning member 70 as well as along the edge 26 between the jaw 95 and guide 65. .and is then ready to be turned over, and its lengthwise edges 26 and 27 secured to each other to complete the cup.

During the forward feeding of the paper and the various operations hereinbefore described the strip'of metal 28 has also been advanced as set forth. passing beneath the paper and directed into guides 105 formed.

in the top of the sealing or securing member composed of the two pivoted jaws 95 and 106. so that the edge 26 of the paper lies thereover. Thereupon, through the turning. of the blank by member 70, the said edge 27 is brought over the edge 26. being turned about the blank diagonal which passes through the rearward end of the guide 65, the latter serving to hold the paper along edge 26 and directing the turning to cause edge 27 to coincide substantially with edge 26. The three elementstwo paper edges and metal stripare.thus in position to be securely crimped, folded or bound together, as in turning one over the other. In this connection, it is to be noted that the metal strip, which has been formed with perforations equally spaced along'its median line, has the edges of said perforations left rough and in position to contact with the paper, therebyinsuring a maximum hold thereon; To bring the edge 27 into the position noted, the turning member 7 O is caused to be rotated about pleted, a pivoted sealing blade 120, whose motion is governed by a slotted guide 121 secured to the frame, is arranged to descend through the action of an arm 122 controlled by an eccentric or cam roller 123 on the cam shaft 60. This blade is toothed along its operative edge, the teeth 124 thereof being designed to enter corresponding lateral recesses 125 in the jaws 95 and 106 to permit of the latter fully closing. As the blade 120 descends, its lower edge engages the edge 27 of the turned-over blank as well as the edge 26 thereof, holding same to the metal strip 28, whereupon the turning member 7 O is returned to its home position through the action of the spring 115, the said member having been released by its cam. Further downward movement of the blade results in the metal and edges 26 and 27 being forced into the V-groove of the aw member to assume a corresponding shape, the said jaws, meanwhile, being held in fixed and normal open position by an upwardly proj ecting-abutment member 126 which engages a projection 127 of the said jaws. A cam 128 on the cam shaft 60 then releases this abutment member 126, and the jaws are depressed under further movement of the blade 120, closing through the action due to the pivotal mounting of the jaws, provision also being made for a partial rotation there of. The coacting aw portions thereby compress and securely seal theedges 26 and 27,

- binding the metal 28 thereover substantially along its median line toe-complete the cup. The toothed portion 124: has suflicient clearance to prevent the cup being held to the blade in the sealing action, and permits of the blades withdrawal therefrom, which is accomplished through a spring 129. The upward and return movement of the jaw, through the action of the spring 96, tends,

moreover, to forcibly eject the cup which falls through the opening 130 provided in the lower portion of the frame.

I claim:

1. In a machine of the character described: feed mechanism comprising a pair said cam shaft in the opposite direction of rotation only. 7

2. In a machine of the "character described: a paper supply roll and a metal strip supply roll, feed mechanism therefor comprising two coacting feed rollers, one of which has a portion of reduced diameter provided with strip-engaging means.

3. In a machine of the character described: a paper supply roll and a metal strip supply roll, means to feed said paper and metal binding strip and comprising two coacting feed rollers, one of which has a portion of reduced diameter provided with means to engage the strip, and means to hold said strip to said reduced periphery.

4. In a machine of the character described: a paper supply roll and a metal strip supply roll, means to displace the metal strip relatively to the paper, means to feed said paper and metal binding strip and comprising two coacting feed rollers, one of which has a portion of reduced diameter provided with means to engage the strip, and means to hold said strip to said reduced periphery.

5. In a machine of the character described: a paper supply roll and a metal strip supply roll, means to displace the metal strip relatively to the paper, means to feed said paper and metal binding strip .and comprising feed rollers, one of which has a portion of reduced diameter provided with means to engage the strip, and means to guide the metal strip beneath the paper and to the reduced portion of the roller.

6. In mechanism of the character described: a turning member affording an abutment to deflect a corner of the advancing paper downwardly, means to fold the said. corner, and means to secure the lengthwise edges of the paper to each other.

7. In mechanism of the character described; a turning member affording an abutment to deflect a corner of the advancing paper downwardly at an angle of ninety degrees to the diagonal of the paper, means to fold the said corner, and means to secure the lengthwise edges of the paper to each other. 7

8. In mechanism of the character described: means to feed a strip of paper, a turning member affording an abutment to reflect a corner of the paper downwardly, means to fold the said corner and to provide impressions thereon, and means to Se- -cure the lengthwise edges of the paper to each other.

9. In mechanism .of the character described: means to feed a stripof paper, a turning member affording an abutment to deflect the forward corner of the paper downwardly, means to fold the corner, means to temporarily support the paper substantially at the line of fold, and means to secure the lengthwise edges of the paper to each other.

10. In apparatus of the character described; means to feed a paper strip and a metal binding strip, means to fold under a forward corner of said paper strip, a turning member for the paper, and means thereon to hold the paper thereto, means to cut the paper and metal strip, means to rotate said turning member to register the lengtha wise edges of the paper blank, and means to secure the metal strip about said edges.

11. In apparatus of the character described: means to feed a paper strip and a metal binding strip, means to fold under a forward corner of said paper strip, a turning member and suitable pins projecting upwardly therefrom to engage the paper, means to cut the paper and metal strip, meansto rotate said turning member to register the lengthwise edges of the paper blank, and means to secure the metal strip about said edges.

12. In apparatus of the character 'described: means to feed a paper strip and a metal binding strip, means to fold under the met a forward corner of said paper strip, a turning member and suitable pins projecting upwardly therefrom to engage the paper,

means to lift said turning member to cause the pins to engage the paper, means to cut the paper and metal strip, means to rotate said turning member to register the lengthwise edges of the paper blank, and means to secure the metal strip about said edges.

13. In apparatus of the. character described: means to feed a paper strip and a metal binding strip, means to fold under a forward corner of said paper strip, a turning member and suitable pins projecting upwardly therefrom to engage the paper, means to lift said turning member to cause the pins to engage the paper, means to cut the paper and metal strip, a pivoted abutment designed to receive the pins, a member positioning same and controlled by the movement of the cutting member, means to rotate said turning member to register the lengthwise edges of the paper blank, and means to secure the metal strip about said edges- 14. 'In apparatus of the character described: means to feed a paper strip and a metal binding strip, means to fold under a forward corner of said paper strip, a

turning member for the paper and means thereon to hold the paper thereto, means to cut the paper and metal strip, means to guide the paper along one edge and means to cooperate therewith to hold the paper along said edge,means torotate said turning member to register the lengthwise edges of the aper blank, and means to secure 25 strip about said edges,

' 15. In apparatus of the character described: means to feed a paper strip and a metal binding strip, means to fold under a forward corner of said paper strip, a turning member for the paper and means thereon to hold the paper thereto, means to cut the paper and metal strip, means to guide the paper along one edge, a jaw member vertically movable and adapted to hold said paper along said edge, means to rotate said turning member to register the lengthwise edges of the paper blank, and means to secure the metal strip about said edges.

16. In apparatus of the character described: means to feed a paper strip and a metal binding strip, a guide forone edge of the paper, means to fold under a for- .ward corner of said paper strip, a turning member for the paper, and means thereon to hold the paper thereto, means to cut the paper and metal strip, a spring-drawn jaw member vertically movable to hold said paper against said guide and means controlled by the cutting means to release the tatesaid turning member and comprising a segmental gearattached thereto, a rack engaging said gear, a cam on said cam shaft to control said rack, and means to secure the metal strip about the edges of the paper.

18. In apparatus of the character described: means to feed a paper strip and a metal binding strip, means to fold under a forward corner of said paper strip, a turning member for the paper and means thereon to hold the paper thereto, means to out the paper and metal strip, means to rotate said turning member to register the lengthwise edges ofthe paper blank, and means to secure the metal strip about said edges and comprising jaw members, a reciprocable blade adapted to descend between said jaw members to first form the paper and strip therein and then cause said jaws to close to secure the paper and metal together.

19. In apparatus of the character described: means to feed a paper strip and a wise edges of the paper blank, and means to secure the metal strip about said edges and comprising jaws, said jaws being provided with lateral guides for the strip of metal, a reciprocable blade adapted to descend be tween said jaws to first form the paper and strip therein and then cause said jaws to close to secure the paper and metal together.

20. In apparatus of the character described: means to feed a paper strip and a metal binding strip, means to fold under a forward corner of said paper strip, a turning member for the paper and means thereon to hold the paper thereto, means to cut the paper and metal strip, means to rotate said turning member to register the lengthwise edges of the paper blank, and means to secure the metal strip about said edges and comprising jaws, a reciprocable blade adapted to descend between said jaws, said jaws being recessed to accommodate the teeth of the. blade to permit closing of the jaws around the latter and the said blade first forming the paper and strip therein and then causing said jaws to close to secure the paper and metal together.

21. In apparatus of the character described: means to feed a paper strip and a metal binding strip, a cam shift operating in conjunction therewith, means to fold under a forward corner of said paper strip,

a turning member for the paper and means thereon to hold the paper thereto, means to cut the paper and metal strip, means to rotate said turning member to register the lengthwise edges of the paper blank, and means to secure the metal strip about said edges and comprising jaws, a reciprocable blade adapted to descend between said jaws to first form the paper and strip therein and then cause said jawsv to close to secure the paper and metal together, means to engage said blade to depress same, and a cam on said cam shaft to control said means.

.22. In apparatus of the character described:v means to feed a paper strip and a metal binding strip, a cam shaft operating in conjunction therewith, means to fold under a forward corner of said paper strip, a turning member for the paper and means thereon to hold the paper thereto, means to cut the paper and metal strip, means to rotate said turning member to register the lengthwise edges of the paper blank, and means to secure the metal strip about said edges and comprising jaws, a reciprocable blade adapted to descend between said jaws to first form the paper and strip therein and then cause said jaws to close to secure the paper and metal together, means to engage said blade to depress same, a cam on said cam shaft to control said means, and

guiding means for said blade. 23. In apparatus of the character described: means to feed a paper strip and a the paper and metal strip, means to rotate metal binding strip, a cam shaft operating in conjunction therewith, means to fold under a forward corner of said paper strip, a turning member for the paper and means thereon'to hold the paper thereto, means to cut the paper and metal strip, means to rotate said turning member to register the lengthwise edges of the paper blank, and means to secure the metal strip about said edges and comprising jaws, a reciprocable blade adapted to descend between said jaws to first form the paper and strip therein and then cause said jaws to close to secure the paper and metal together, means to engage said blade to depress same, a cam on said cam shaft to control said means, guiding. means for saidv blade, and resilient means to return said blade.

24. In apparatus of the character described: means to feed a paper strip and a metal binding strip, means to fold under a forward corner of said paper strip, a turn-. ing member for the paper and means thereon to hold the paper thereto, means to cut 9 said turning member to register the lengthwise edges of the aper blank, means to secure the metal strip about said edges, and resilient means to return the turning member.

25. In apparatus of the character described: means to feed a paper strip and a metal binding strip, means to fold under a forward corner of said paper strip, a turning member for the paper and means there- 10.

on to hold the paper thereto, means to cut the paper and metal strip, means to rotate said turning member to register the lengthwise edges of the paper blank, and means to secure the metal strip about said edges and 108 comprising jaws, a reciprocable blade adapted to descend between said jaws, and abut-- ment meansto temporarily hold said jaws against descent during the downward movement of the blade. I 11.

26. In apparatus of the character described: means to feed a paper strip and a metal binding strip, means to fold under a forward corner of said paper strip, a turning member for the paper and means there- 11. on to hold the paper thereto, means to cut a the paper and metal strip, means to rotate said turning member to register the length-' wise edges of the paper blank, and means to secure the metal strip about said edges and 1!. comprising jaws, a reciprocable blade adapted to descend between said jaws, abutment means to temporarily hold said jaws against descent during the downward movement of the blade, and a cam to control the abutment.

27. In apparatus of the character described: means to feed a paper'strip and a metal binding strip, means to fold under a forward corner of said paper strip, a turning member for the paper and means there- 0 on to hold the paper thereto, means to out the paper and metal strip, means to rotate said turning member to'register the lengthwise ed es of the paper blank, and means to secure the metal strip about said edges and comprising jaws, a reciprocable blade adapted to descend between said jaws, to first form the paper and strip therein and then cause said jaws to close to secure the paper and metal together, and means con- 10 trolled by the cutting member to open the aws. J Signed at New York, in the county of New York and State of New York, this 16th day of May, A. D. 1919.

JOSEPH V. WECKBAUGH,

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