US1917558A

US1917558A - Method of and means for the manufacture of containers of paper or like material, andlids or covers therefor

Info

Publication number: US1917558A
Application number: US350396A
Authority: US
Inventors: Taylor Cyrus; Taylor Elmer Zebley
Original assignee: Individual
Current assignee: Individual
Priority date: 1929-03-27
Filing date: 1929-03-27
Publication date: 1933-07-11
Anticipated expiration: 1950-07-11

Description

July 1l, 1933e c. TAYLOR ET AL 1,917,558

METHOD 0F AND MEANS FOR THE MANUFACTURE oF `CONTAINERS 0F PAPER 0R LIKE MATERIAL, AND LIDS 0R COVERS THEREFOR A Filed March 27, 1929 4 Sheets-Sheet l July ll, 1933I c. TAYLOR ET AL 1,917,558

METHOD OF AND MEANS FOR THE MANUFCTURE OF CONTAINERS OF PAPER OR LIKE MATERIAL, AND LIDS OR COVERS THEREFOR Filed March 27, 1929 4 Sheets-Sheet 2 Ju1y11, 1933. c. TAYLOR Er AL 1,917, 55s

METHOD OF AND MEANS FOR THE MANUFACTURE OF CONTAINERS OF PAPER OR LIKE MATERIAL, AND LIDS OR COVERS THEREFOR Filed March 27, 1929 4 Sheets-Sheet 3 July l1, 1933. c. TAYLOR Er AL 1,917,558

METHOD OF AND MEANS FOR THE MANUFACTURE OF CONTAINERS OF PAPER OR LIKE MATERIAL, AND LIDS OR COVERS THEREFOR 4 Sheet S-Sheet 4 Filed March 27, 1929 A y Jnnentors @g3/jazzy@ i i Gttorneg Patented .fuly 11, 1933 UNITED STATES.. PATENT OFFICE CYRUS TAYLOR, OF HARTFORD, CONNECTICUT, AND ELMERZEBLEY TAYLOR, OF

NEWARK, NEW JERSEY METHOD OF AND MEANS FORTHE MANUFACTURE OF CONTAINERS OF PAPER OR LIKE MATERIAL, AND LIDS OR COVERS THEREFOR.

Applicaton -led March 27, 1929. Serial No. 350,396.

The object of this invention is to provide an improved method of and means for making containers of paper or like material with straight as distinguished from tapering or conical side-walls, and lids or covers therefor. It is well known that containers with straight side-walls have hitherto been made by continuously winding a tube of material in a spiral form onto a mandrel, but according to the present invention it is proposed to wind such side-walls convolutely instead of spirally, and the method is such that the finished article may be of cylindrical, square or other section, while the operation is practically continuo-us, that is to say there is scarcely any interruption in the feed of the material from a reel to the mechanism employed.

In the accompanying drawings Fig. 1 is'an enlarged sectional view of part of a container and lid or cover made in accordance with the present invention, and Fig. 2 a plan view of the web forming the blank therefor after it has passed the pasting device; Fig. 3 is a view of the pasting device to which the web passes from the reel; Fig. 4 is an enlarged plan view showing the result obtained by the addition of the device hereinafter described for taper-v ing off the ends of the blanks; Fig. 5 is a viewv similar to Fig. 3 but with parts added to obtain the result shown in Fig. 4; Fig. 6 is an enlarged View of such additional parts,'and

Fig. 7 a greatly enlarged section of the web illustrating the tapering thereof at the ends of the blanks; Fig. 8 is aY view of the part of 3 the machine to which the web of material passes from that part shown on a smaller scale in Figs. 3 and 5, and Fig. 9 is a vertical section of part thereof. Fig. 10 is a sectional view taken on the line 10-10 of Fig. 8. Fig.

ll is a section partly in elevation of the same,

taken on the line 11-11 of Fig. 8. Fig. 12

is a section taken on the line 12-12 of Fig. 8.

Fig. 18 is a section taken .on the line 13-13 of Fig. 8. Fig. 14 is a fragmentary detail 4" partly in elevation .and partly in section of mechanism for ejecting the finished container.

Referring to Fig. 1 of these drawings it will be seen that the containers it is desired to manufacture by the method and means hereinafter described have side-walls consisting of two convolutions 1, 2, of the material employed, and that the bottom lthereof consists of two discs 8, 4, between which latter the lower end` 5 of the side-walls yis g secured. The lid or cover 6 of the container .is of exactly similar construction, the side-walls being of course rolled slightly larger in diameter so that the cover will lit onto the outside of the container body. The main object of the present invention is to en able containers of this class to be made continuously from a roll of paper, in such v`a manner that the iow of material from such roll is continuous until the whole of the material thereof has been utilized.

In the specification of an application for patent of even date herewith Serial No. 350,394

filed by Cyrus Taylor, one ofthe present applicants, a method of and means for rolling tubes of paper or like material is described, which is applicable to the continuous manufacture of containers of this class. The mechanism employed is shown diagrammatically in Figs. 3 and 8, where it'will be seen that the web of material passes from the roll 7 to a pasting apparatus consisting of a pasting roller .8 revolving in contact with another roller 9 which dips into the paste or other adhesive contained in the paste reservoir or fountain 10, a squeegee roller 11 being preferably pro"- vided by which the amount of adhesive supplied by roller 9 to the actual pasting roller 8 can be regulated by means of screw 12. The surface of the pasting roller 8 is mutilated in such a way that the adhesive will only be su plied to the portions of the paper-web A indiicated by cross lines in Fig. 2, that is to say the portion'13 which forms the interior wall of the completed container will not receive any adhesive, while the narrow strip 14 will be pasted for the reason that it is to constitute thepart turned into Contact with the inner disc 3 of the bottom. The remaining portion 15 of this section of material will form the outer ply of the completed container, and is therefore covered with adhesive. A roller 8a is preferably provided in such relation to yt-he pasting roller 8 as to keep the web of material in proper contact therewith.

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In order to avoid any unevenness in the sur-4 face of the finished article which would arise through the natura-l thickness of the paper, at the ends of the inner and outer laps of the blanks, it is desirable to employ the method described and claimed in the specification of an application for patent of even date herewith Serial No. 350,395 iled by Elmer Zebley Taylor, one of the present applicants, and in which this object is attained by applying considerable crushing pressure tonthe ortions of theweb which will form the en s O the blanks in such a manner that the material thereof is tapered ofi to comparative thinness, without being actually severed thereby. F ig. 6 of the drawings shows one method by which this result can be obtained, which it will be seen consists in the employment of a pair of

rollers

40, 41, disposed as shown in Fig. 5 at a suitable point between the reel 7 from -which the web of paper or other material is unwound and the pasting roller 8 by which the necessary adhesive is applied thereto. The

rollers

40, 41 are. rigidly mounted in respect to each other, and are driven in such relation with the other parts of the complete machine as to make a complete revolution as the proper length for the desired blank passes. Such rollers do not act to pull or' feed the paper forward, but` as shown in Fig/6, theyare provided with hard steel in-v serts or projections 42 which, as the paper web passes the centre line between the

rollers

40, 41, indent the materialwith such pressure that it assumes the section shown greatly enlarged) in Fig. 7, the sloping surfaces 43 on each side tapering down to the point 44 without actually severing the material.

A modiiication of this arrangement may be employed in which one only of the

rollers A

40, 41, is provided with a steel insert or projecting part/42, the eifect of which will b e that the web of material will be impressed on one side only, the desired effect being however still attained. It will of course be uny derstood that the crushing operation must not be such as to lactually break the material, as this would interfere with the subsequent l operation of the machine, but onlysuicient to obtain the desired e'ect of a blank with tapered ends, enough material being left at the thinnest point to give the web suicient strength to be carried along into the machine. In Fig. 4 of the drawings a rolled-up blank for a container or lid, and which has been treated as above described, is shown, and the improved result attained by the use of the' arrangement just described will be apparent, there being a practically smooth surfaceon both the inner and outer sides of the article, insteadk of the ledges which would otherwise be presented by the natural edges of the ma'- terlal.

From the ,pasting mechanism above described the web of material A p v:-

of a gear wheel 19 operated by driving pinion 20 on shaft 2,1, such gear wheel 19 also having external teeth with which such pinion 20 engages. Each of the mandrels 16 has formed in it a series of holes 22, these` being placed in approximately the position in which the leading end of the web of material A makes Contact with the mandrel. Suitable vmeans are provided for creating a vacuum in the mandrel so that the web will be acted cn thereby and so held in contact with such mandrel. rlhe arrangement is such that after the web has thus been gripped by the mandrel the latter will make about one and a half turns, wrapping the material around it' to this extent, and then the spacing mechanism hereinbcfore referred to comes into action and this particular mandrel is thereby carried from position B to position C. At about this time a mechanism for breaking or severing the web between positions- B and C, and consisting of an arm 23 operated by any suitable means, breaks or severs such web at a point th at will leave suiiicient to complete the winding ofthe container on the first mandrel. The outer extremity of the breaker arm 28 is pref erably of suchshapeas to force and hold the severed end of the web in contact with the next mandrel 16. which has now arrived at osition B, thus giving full opportunity for t e vacuum in thls mandrel to act on such severed end of the web while` itin turn is being wound thereon,

VIn applying this arrangement in connection vwith that hereinbefore described for tapering oil' the ends of the blanks, the breaker arm 23 is caused to operate at such a time that its operating end will come in contact with the web of material A at its thinnest point, that is to say at the point 44 produced by the action'of the steel inserts carried by one or both of the

rollers

40, 41. The crushing operation to .which the web has been subjected will facilitate the operation of breaking it at the desired point. In the drawing it will be seen that a roller 24 is shown between which and the mandrel in position B the web of material A ispassed. Such roller 24 may be acted on by a spring-or springs and has for its object to prevent the web from being drawn forward' or being retarded, and it thus co-operates with the mandrel 16 at the' `the object hereinbefore referred to` vizthe continuous manufacture of this class of convolutely wound containers, to be attained,

as there is a slightly intermittent continuous feed of the material from the reel until the Whole of such material has been utilized.

To supply the inner one, 3, of the two discs which constitute the end of ,the container, suitable means may be provided at the point G for cutting such disc from a web of suitable material and for applying it to the end of the mandrel 16 then in that position, Where it Will be held by suction through holes 22a in such end. Cut and feeding means for the disc 3 may include feeding rollers 5() intimately driven in proper timed relation with other parts of the machine to feed a strip of material 51 to a punch and die 52 and 53 respectively, the same being located adjacent the' end of the cylinder at position G. A crank 54 is properly driven and timed to cut the disc and presented to the cylinder 16 to be gripped thereto by suction created in the cylinder. it will be retained there While such mandrel moves from position G to position B and then on -to position C, suction having been established and maintained throughout this movement through a port 55 formed in the member 17, one for each cylinder, said port communicating with the interior of the cylinder at one end and with the segmental groove 56 formed in a header 57. the groove extending, as shown, from the position of station G to that of station C. The groove 56 is connected to a vacuum pump through the pipeV 58 threaded into the header. At position C the winding of the side-walls 1, 2, on the mandrel will be completed, such side-Walls be'- ing so disposed in relation to the mandrel that a suiiicient length thereof, about corresponding to the Width of the narrow pasted portion 1/-i- (Fig. 2) will project beyond the end of the mandrel and the disc 3 carried thereby. This projecting end of the side-Walls l, 2, is turned over into rContact vvith the disc 3 on the end of the mandrel when the latter, in the intermittent movement imparted to the holder 17,

f arrives at the `position C. i roller 59 having a flange 60 is mounted for free rotation on an arm 61, which arm in turn is pivoted at 62 to the frame of the machine. The flange 60 engages the projecting end of the side Wall of the container and forces it into engagement -with a disc 3 as shown in F ig. 11. Any other suitable means may be employed -for this purpose, it being of course understood that the object of this 'turning over is to bring the narrow pasted portion 1a of the side-Walls into intimate contact -`with the disc 3 and ca use it to adhere thereto. rl`he paste or other adhesive employed should be of a quick drying character, so as to overcome any tendency of the turned-over side-Wall to leave the disc after it has been brought into contact therewith.

rEher intermittent movement of holder 17 next brings the mandrel 16 in question to the position E, Where mechanism is provided for cutting the other or outer disc 4 from a web of material, said material having applied thereto a suitable adhesive, and then bringing the latter with considerable pressure into Contact with the disc 3 and the turned-in portion of the side-Walls 1, 2, such turned-in porthe former mechanism will suffice for this,

Vthe feeding rollers of both devices being s1- multaneously operated by suitable gearing 64. If desired the mechanism f or bringing the disc 4 to position and causing it to adhere may also form a bead or other configuration thereon, to improve the appearance of the inished article and assist in retaining the disc in position. It will be readily understood that although the machine may as above described include means for cutting the discs 3, e, from webs of material, such cutting may if found desirable be effected separately, the remaining operations as described being then conducted .vith discs supplied in any suitable manner.

Subsequent movement of the holder 17 brings the mandrel 16 with the now finished container to the position F, Where a delivery mechanism will act on such container to eject it from the mandrel. This operation may be performed by a ring 65 caused to slide along the latter, and it will be found advisable to assist the operation of this ring by causing a pressure of air through the perforations in the mandrel, as otherwise a vacuum would be formed therein which Would operate to prevent the removal of the container. A yoke 66 pivoted at 67 and connected to the ring 65 through a pin and slot connection 68 has an 'arm 69. rlhe pivotal connection 67 is located in a lug projecting outwardly from a ring 70 secured to'and rotating Withthe member 17. A spring 71 returns the ring to its normal position after ejection of the finished article.

it will be understood that each cylinder is provided with an ejecting device as above described. A plunger 72 is located adjacent the position F and as a cylinder cornes to rest at this station, said plunger overrides the end of the arm 69. A cam 73 is operated at the proper time and the yoke 66 swung on its pivot 67, the ring 65 thereby expelling the finished receptacle. Coincident With the movement of the lever 69 under the plunger 72 the port 55 is brought into registration with an opening 74E in the header 57. Air under pressure is introduced from a pipe line 75 to assist in the removal of the article as hereinbefore described. After thev container has been thus removed the intermittent movement of holder 17 brings the particular manyoa drel the operation of which has been followed back to the position Gr, where another disc will be applied thereto and the operation continued. The intermittent movement described may be imparted to the holder '17 in any suitable manner, the means shown in the drawing consisting in a series of slots 25 formed in such holder and with each of which in turn engages a roller 26 carried on a continuously rotating disc 27, receiving its motion by

suitable gearing

28, 29, from the main shaft. The dise 27 also carries a cam 30 which operates a locking arm 31 having a tooth 32 adapted when the holder 17 is stationary to enter one of a series of notches 33 for the purpose of preventing any movement of such holder While the various operations are being performed on the container.

As above described the side-walls of the articles would consist of two convolutions or plies of material, but it will be readily understood that by suitably modifying the relation of the spacing mechanism to the driving mechanism for the mandrels, articles having side-Walls of three or more convolutions or plies of material can be produced by the method described. If desired mechanism may be provided between the reel 7 from which the web of material A passes, and the pasting mechanism, for the purpose of printing such web in one or more colours. The above description applies particularly to the body of the container, but reference .to Fig. 1 will show that the lid 6 therefor is of precisely similar construction, such lid being, as will be understood, made of slightly larger diameter so that it will fit tightly onto the body. It will also be readily understood that although the invention has been described and illustrated in connection with the manufacture of cylindrical containers, by suitably modifying the shape of the mandrels or formers on which the web of material is-Wound. it is possible to manufacture square, rectangular or other shaped containers by this improved method, the shape of the discs or lanks forming the ends of the container or lid being in this case of course correspondin ly modified.

hat We claim and. desire to secure by Letters Patent is 1. The combination in a container-making machine`of a pasting device adapted to apply adhesive to a web of material, series of man- ,drels mounted on an intermittently rotated holder, means for rotating such mandrels and thus winding the Web convolutely thereon', means active prior to the Winding for crushing the web at suitable points to cause the ends of the blanks to be tapered off to a comparatively thin edge, means for severing the web at such points after it has been partially Wound on one ofthe mandrels, means for creating a vacuum within the mandrels whereby the severed end of the web will be drawn to and held by the mandrel during the winding operation, and means for cutting atated holder, means for rotating such manl drels and thus Winding the web convolutely thereon, means active prior to the Winding for crushing the Web at suitable points to cause the ends of the blanks tobe tapered oit to a comparatively thin edge, means for severing the web at such points after it has been partially Wound on one of the mandrels, means for creating a vacuum Within the mandrels whereby the severed end of the web will be drawn to and held by the mandrel during the winding operation, means for applying a disc of material to the end of the mandrel and causing it to be held there by the vacuum, and means for turning in the end of the side- Walls of the article into contact with the outer side of such disc.

\ 3. llhe combination in a container-making machine of a pasting device adapted to apply adhesive to a web of material, a series of mandrels mounted on an intermittently rotated holder, means for rotating such mandrels and thus winding the web convolutely thereon, means active prior to the Winding for crushing the web at suitable points to cause the ends of the blanks to be tapered off to a comparatively thin edge, means for severing the web at such points after it has been partially Wound on one of the mandrels, means for creating a vacuum Within the mandrels whereby the severed end of the web will be drawn to and held by the mandrel during the winding operation, means for applying an inner disc of material to the endy of the mandrel and causing it to be held there by the vacuum, means for turning in the end of the side-Walls of the article into Contact with the outer side of the said inner disc, and means for cutting an outer disc of material and applying it over the inner disc and the turnedin part of the side-walls.

4. The combination in a container-making machine of a pasting device adapted to apply adhesive to a web of material, a series of mandrels mounted on an intermittently rotated holder, means for rotating such mandrels and thus winding the web convolutely thereon, means'aotive prior to the winding for crushing the web at suitable points to cause the ends of the blanks to be tapered otl to a comparatively thin edge, means for severing t e Web at these points after it has been partially wound on one of the mandrels, means for creating a vacuum Within the mandrels whereby the severed end of the web llO llol

will be drawn to and held by the mandrel i,e17,sss

during the Winding operation, means for applying an inner disc of material'to the end of the mandrel and causing it to be held there by the vacuum, means for turning in the end of the side-Walls of the article into contact with the outer sideof said inner disc, means for applying an outer disc over the inner disc and the turned-in part of the side-walls? and means for ejecting the nished article from the mandrel.

5. The combination in a container-making machine of a pasting device adapted to apply adhesive to a web of material, a series ot mandrels' mounted on an intermittently rotated, holder, means for rotating such mandrels and thus winding the web convolutely thereon, means active prior to the winding Jfor crushing the web at suitable points to cause the ends of the blanks to be tapered 0H 'to a comparatively thin edge, means for subsequently severing/the web at such points after it has been partlally wound on one of the walls, means for ejecting the finished article from the mandrel, and means for assisting such ejection by air pressure produced in the mandrel. y

In Witness whereof We have signed this specification.

CYRUS TAYLGRu ELMER ZEBLEY TAYLOR.

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