US1762702A - Method of making boxes and box-blank assemblies - Google Patents

Description

H. B. SMITH June 10, 1930.

METHOD OF MAKING BOXES AND BOX BLANK ASSEMBLIE Original Filed Jan. 12, 1923 4 Sheets-Sheet A TTORNE Y5,

June 10, 1930.

H. B. SMITH METHOD OF MAKING BOXES AND BOX BLANK ASSEMBLIES 4 SheetsSheet 2 Original Filed Jan. 12, 1925 A TTORNE YJ' June 10, 1930.

H B. SMITH METHOD OF MAKING BOXES AND BOX BLANK ASSEMBLIES Original Filed Jan. 12, 1925 4 Sheets-Sheet 3 A TTORNEY June 10, 1930. H. B. SMITH ,7 ,7

7 METHOD OF MAKING BOXES AND BOX BLANK ASSEMBLIES Original Filed Jan. 12, 1923 4 Sheets-Sheet 4 i v v 5M:

A TTORNE Y Patented June 10, 1936 UNITED STATES PATENT? OFFICE HARRY BRIDGMAN SMITH, 0F BROOKLYN, NEW YORK, ASSIGNOR, BY MESNE ASSIGN- MENTS, TO HOAGUE SPRAGUE CORPORATION, OF LYNN, MASSACHUSETTS, A (JOB- PORATION OF MASSACHUSETTS METHOD OF MAKING: BOXES AND BOX-BLANK ASSEMBLIES Application filed January 12, 1923, Serial No. 612,169. Renewed September 24, 1926.

This invention relates to. box and boxblank production methods in general conformity with my previous inventions disclosed in various patents and pending applications in which materials are continuously advanced and operated upon and parts are severed at regular intervals to produce individual box blanks, with important modifications and improvements.

The present methods are also in general conformity with a companion application,

Serial No. 612,168, filed January 12, 1923, executed on even date herewith, and reference should be made to said application for an understanding of characteristics of the methods which are common to the two cases, and a general description of the objects and characteristics of these methods. Variations in the methods peculiar to the present invention are suficiently explained in detail hereafter. The box blanks and box parts to be produced are fully shownand described, in order that the produption methods may be properly understood. They are not claimed in the present application, being disclosed and claimed in Application Serial No. 162,737, filed on January 22nd, 1927.

An important object of the present inven- ,tion is to provide for making box parts having suitable reinforcements, especially reinforcements at or about the wall edges,'and

along fold lines and in some cases with reinforcing material substantially all over the blank area.

While the invention is of course not limited to theproduction of boxes for any particular purpose an immense number of boxes are required by the shoe trade for packing shoes, one pair in each box, for shipment to retailers, and these boxes are placed on shelves and in most cases they are repeatedly handled before the shoes are sold, and such boxes are therefore subjected to especially rough treatment, and they are a good example of boxes requiring reinforcements, these requirements being met in an improved fashion by the present invention.

In certain preferred embodiments of the in vention as herein shown walledge reinforcements are provided by providing certain portions of the blanks such as the end wings or side wings or both, with marginal projections which are turned in and secured to provide wall edges of substantially double thickness and including of course the shell or body material of the blank as well as the finishing or cover material. This provides an especially strong anddurable structure well adapted to meet the needs of the shoe trade or other trades in which boxes are subject to rough treatment and as at present constructed are frequently broken before their useful life is ended.

Incidental to producing an especially strong reinforced box, the described formamethod steps and blank forms adopted 013.,

reasons previously stated. The end edges of the shell end wings which may be exposed in thecompleted box part are unobjectionable in many cases but they may be partially or substantially concealed when desired by pressing down the adjacent edges of the cover material whilethe adhesive is still moist in a manner more particularly referred to in a companion application.

The invention also provides for incorporating in the continuous blank or box forming web other reinforcements of suitable material in various ways as described in detail hereafter. The provision of reinforcements in the various ways described permits the production of boxes of light weight in proportion to their strength with corresponding economies in shipping costs and cost of materials. For example, by the provision of suitable reinforcements the shell material employed may be lighter than otherwise in a box of given strength; if, however, shell material of ordinary standard weight for a given purpose is employed the reinforceand I contemplate the employment of any methods which are properly within the scope of the appended claims.

Figure 1 is a side elevation of box forming materials, and representative mechanisms for performing a series of operations upon the materials in accordance with the invention process in one form, up to the point of separation of a complete individual blank assembly.

Figure 2 is a top plan of the same.

Figure 3 is a bottom plan.

Figure 4; is aperspective view.

Figure 5 is a perspective view, enlarged, of an individual blank assembly.

Figure 6 shows the blank partly folded into box form. l

Figure 7 is a perspective view of the completed box part produced by the method exemplified in the previous figures.

Figure 8 is a section at 8-8, Fig. 7. Figure 9 is a plan view of continuous box forming materials in recess of assembly formation, showing a sllghtly modified manner of applying reinforcing material.

Figure 10 is a section at 10-10, Fig. 9.

Figure 11 is a similar view showing a method of providing a different or all-over reinforcement.

Figure 12 is a section, enlarged, at 12-12, Fig. 11.

Figure 13 is a top plan view of box forming materials in process of assembly and formation to produce a different form of individual blank. 1

Figure 14 is a bottom plan of the same.

Figure 15 is a perspective view of the same.

Figure 16 is a perspective view, enlarged, of a completed individual blank assembly produced by the method as exemplified in Figures 13 to 15.

Figure 17 shows the blank side wings folded over and creased or pressed.

Figure 18 shows the side wings turned up to normal position and the corner laps turned 1n.

' Figure 19 is a perspective view of the completed box part produced in accordance with this variation of the method, a portion at one corner being broken away and-sectioned.

Figure 20 is a section at 20-20, Fig. 19.

Figure 21 is a detail view in plan, showing continuous materials in process of assembly to produce another modified form of continuous blank assembly.

Figure 22 is a section at 22-22, Fig. 21. The process is carried out in one form in a manner sufliciently illustrated in Figures 1 to 8. inclusive. A continuous strip or web of suitable box body of shell material is advanced from a roll 2. A continuous web of reduce the weight or wall thickness of a box of a certain weight by providing reinforce- -ments, strips of reinforcing material 5 and 6 are advanced from spools or rolls 7 and 8' respectively, passed over glue rolls 9 and brought into adhesive contact with the shell strip between pressing rolls 10. J

The reinforcing strips may be of any suitable material such as textile fabric of a proper quality, or they may be of paper of a suitable grade or toughness such as kraft paper or other paper having the desired strength and folding qualities. The reinforcing strips may vary in number and arrangement. In the present instance the outer strips are applied so that margins '11 project beyond the longitudinal edges of the shell web and the inner strips 6 are a plied so that they overlie longitudinal fol lines produced on the shellweb referred to below.

The cover web passes over a glue roll 12 and is brought in contact with the shell web and the reinforcin strips between pressing rolls 13. The rein orcing strip or strips may in some cases be omitted and the process will in that case be understood as comprising up to the present point merely the advancing of the shell strip, the advancing of the cover strip and its application to the shell strip with in-' terposed adhesive.

Desirably in the present instance the cover web has margins 14 projecting beyond the longitudinal ed es ofthe shell web, and these margins also esirably project beyond the margins 11 of the reinforcing strips 5 when the latter are provided. From a point where the cover web is applied to the shell web and I secured there is produced a continuous blank assembly having a finished surface which consists in the presentspecific example of the adhesively applied cover paper; the assembly is in a broader aspect of the invention only one exampleof a suitable continuous box blank forming strip or web havin a finished" surface suitable for production 0 covered or finished boxes or boxes having a desiredresemblance to covered boxes which are demanded for many purposes.

When the cover web has projecting mar-f forcement margins as clearly shown in Fig.

At a suitable point in the advance of the materials, longitudinal folding lines 18 are produced in some or all of the materials. The character of these fold lines may vary. They may be scores or creases but more desirably and especially when the shell material is a relatively cheap grade of the class some times known as chip-board in which special treatment is necessary to provide the proper longitudinal fold formations, these fold lines are produced by cutting away the material to form channels and this removal of material is desirably effected by grinding wheels 19 carried by a shaft 20 and driven at a suitable speed, usually in a direction counter to the movement of the shell web, and suitable provision is made for removing the particles of material ground away. This methodof producing fold channels is conveniently described as routing The grinding wheels 19 are most desirably located so that they operate upon the shell web at a point prior to its contact with other box forming material as shown in full lines in Figures 1, 3 and 4:,

I and an abutment roll 21 is provided to hold the shell in contact with the grinders or, grinding wheels 19 and abutment rolls 21 may be provided and located as shown and may be used alternatively with the wheels 19 and 21 or in conjunction with them to deepen the groove. In the one case therefore the longitudinal fold lines are produced prior to assembly contact and in the other case after assembly contact, or they can be produced upon the continuous blank or blank-assembly after its formation in any suitable manner, not necessarily as a part of the present method or invention.

At a suitable point in the further advance of the materials transverse fold lines 22 are produced by suitable instrumentalities such as rolls 23 and 2 1, Fig. 1. The character of these transverse fold lines may also vary. They may be scores or channels but in a preferred instance they are in the form of deep or gathered creases which may be formed by devices carried by the rolls which gather and breakdown to a certain extent the shell material and form the deep or convex creases which enable the combined materials to be properly folded in the formation of the box part. At a subsequent point additional transverse fold lines 25 which may be of similar character, but which extend only across the central portion of the combined blank between the longitudinal fold lines, are provided by any suitable instrumentalities suchas rolls 26 and 27. Thereafter longitudinal slots 28, which are usually directly in line and co-extensive with the width of the longitudinal fold channels 18, are produced by 7 cutting out narrow strips of the combined blank material, co-operatmg cutting or shearing rolls 29 and 30 being indicated in Fig. 1 for this purpose. At a subsequent point in the advance of the continuous blank it is cut transversely at regular intervals along the severing line 31 and for certain forms or dimensions of boxesother cutting or excising operations may be performed at or adjacent to this point, such operations in the present specific instance consisting in excising rectangular portions of the blank extending from the longitudinal fold lines to the outer margins, these excised portions being represented by the spaces 32, Figures 2 and 3.

There is thus produced a complete individual box formingblank B shown in enlarged perspective in Fig. 5, which comprises a central or body portion a, side wings b, with corner laps 0 extending from their ends, end wings (Z and end wing margins e defined by the transverse fold lines 25. All of these blank portions are composed of shell material with overlying cover material. The longitudinal edges of the shell, that is, the edges of the side wings, are covered and concealed by the overturned cover margins 1 1, and these edges are further reinforced and strengthened by the reinforcing strips 5 and the longitudinal fold lines 18 are overlaid and strengthened by reinforcing strips 6, portions of which extend inward considerably along margins of the central blank section a to reinforce the top or bottom of the completed box part as the case may be. When 1 the reinforcing strips 6 are applied in the described position they are of course partly severed by the longitudinal slots 28 produced in the previously described manner from the transverse fold lines 22 to the end of the 11: blank.

The individual blanks are now folded into box form in a suitable series,.or one or more stages, of operations, comprising turning up the side wings, turning in the corner laps and turning up the end wings, the intermediate stages of the process comprising these operations being sufficiently indicated in Fig. 6. Finally the inner faces of the end wings d are brought in contact with the outer faces of the 1 corner laps, and then the end wing margins e are turned in against inner end margins of the corner laps and secured in position.

To secure the end wings and end wing margins adhesive is properly supplied at a conhighest type. covered by-marginalportions of the cover many cases.

venient or suitable point to mner surfaces-of the end Wings (1, and endwing margins e, or in some cases it may be applie to outer faces of the corner laps and inner margins of the corner laps to correspond with the location of the end wing margins e when folded. The application of adheslve is sufficiently 1nd1cated in Fig. 5 where it is applied to the end wings and end wing margins, and this adhesive application may be performed at any suitable time, while the materials are still in continuous assembly form or after the individualblanks are severed.

The completed box part as shown in. Fig. 7 is a very strong and durable structure in proportion to its weight. The shell material is folded evenly and smoothly along the longitudinal fold lines 18 due to the removal of the box part is especially strong and durable,-

consisting of the corner laps reinforced by the reinforcing stripsand the cover material, the end wings al also reinforced by strlps o and the cover paper and especially the end edges are reinforced by the overturned and adhesively secured end wing margins e consisting of shell and cover material, and also portions of the reinforcing strips when those are provided- The box is therefore especially strong at the ends and well able to resist strains which are frequently put on boxes of this class at the ends, for instance, in pulling them from shelves. The box closelysimulates the appearance of covered boxes of the Inner wall margins are all paper, these comprising cover margins 14 along the side wall margins and portions of v the cover material e overlying the inturned.

shell margins e. In other words the box has a complete inner marginal edgin of cover paper. In this particularform 0 box, produced as described, side edges d of the shell end win sol are more or less ex osed and this shell e ge exposure is unob ectionable in These shell edges can moreover be more or less covered or concealed when desired by drawing or pressing adjacent edges of the cover paper more or lessover the shell edges while the adhesive is still moist in ways more particularly described in my companion application, Semal No. 612,168 filed Jan. 12, 1923.

v In thebroa-der aspect of the invention a great amount of variationis permissible in the order in which 0 erations are performed.

65 They do not have to e performed necessarily in the exact order above stated. For instance, the longitudinal routing may be performed atdifierent points in the process as above explained; the transverse fold lines 22 andr25 may be produced ina different order or at different points, and in general there is no limitation as to the order of operations except when a certain operation is necessaril performed after another or others. I

Figure 11 sufliciently illustrates a variation in the method in which instead of one or more relatively narrow reinforcing strips, such as and 6, a single wide reinforcing sheet or web 35 is applied to the shell web under the cover web, and this reinforcing web has projecting margins 86 which are folded over about the longitudinal edges of the shell in the process ofturning over and securing the cover margins 14. The box blank and box produced in accordance with this variation of the method will therefore consist of portions or sections as described in connection with Fig. 5, but with portions of the reinforc-- ing sheet located between the shell and the cover paper at every point. Fig. 12 is a section at 1212 of Fi 11 showing the continuous assembly inclucfing the all-over reinforcing sheet after the margins have been turned and pressed in position.

Fig. 12 also illustrates a variation in the longitudinal fold lines. These folds 18 instead of being routed are produced by creasing after the general fashion explained in connection with theproduction of the transverse fold lines 22 and 25 in previous figures. Thisform of longitudinal fold lines may be provided in some cases where the character of the body or shell material permits; for

instance, when high grade board, such as folding board, is used. Otherwise the longitudinal fold'lines inFig. 12 may be routed l nes or channels as described in connection with the previous figures.

A variation of the process is indicated in Figures 13 to 20 inclusive, withthe general ob ec t of producing a box having side wall marginal reinforcements produced by turning in and securing marginal portions of the finished or covered side wall after'the general fashion of the end margin turn-ins described in connection with Figures 1 to 8.

The process is-in general substantially the same as in the previous example, with the exception that the cover web 3? need not have pro ecting margins, and therefore is in this particular instance the same width as the shell strip 1, and similarly the full width reinforcing web which may or may not b'efemployed, dependingon the strength requiredin the completed box, or other considerations, is of the same width as the shell and cover webs, without the projecting margins. The longitudinal and transverse fold hnesmay be produced substantially as in the previous examples.

Additional longitudinal fold lines 39, are however, produced, commencing at any desirable point in the advance of the materials, and particularly in the present instance these additional longitudinal fold lines are channels produced by routing, and this may be performed at the same point that the channels 18 are routed, by the provision of additional grinding wheels 19 in line with the wheels '19 as described in connection with Figures 1 to 4, and the grinding wheels may be located in the position shown in Figures 13 and 14 so that they operate upon the shell the side wing portions of the combined ma-' terials, these cut-out portions being indicated by the rectangular spaces 40, Figures 13 and 14, the width of these cut-out portions being commensurate with the width of the side wing margins.

The box to be produced by this particular embodiment of the process is of a type or of such dimensions that the corner laps are of the same length in the longitudinal direction of the blank assembly as the combined end wings and end wing margins e, and therefore the end formation of the individual blanks, except for the side cuts 40, is produced by a single transverse out along the line 31. Otherwise where the corner laps are longer or shorter than the combined end .wings and end wing margins, the proper end formation may be produced by excising portions of the materials between the fold lines 18 and 39 or between fold lines 18.

The individual blanks b so produced are folded into box form, and Figure 17 shows a variation in the folding method which is desirable in some cases. In accordance with this variation the side wing members I) are folded and creased down firmly along the fold lines 18 to initially establish the proper longitudinal folds of these wing portions while the wing portions are substantially flat, in order to eliminate strains in the materials and prevent bulging of the side walls in the completed box, and in order therefore to avoid special pressing or bending operations to eliminate such bulges. The side wings are subsequently straightened up as shown in- Fig. 18, and the corner laps are turned in, and by operations similar to those performed in the first example given, including the proper application of adhesive, the bcfi: formation is completed with, however, the additional step of folding in and securing the side wing margins f to upper inner margins of the side Wings, and for this purpose adhesive is supplied at any convenient point in the process, either while the material is still in continuous form or after the blanks are severed, to inner surfaces of the wing extensions or outer margins of the wing proper.

The completed box so produced, as shown in Figures 19 and 20, may have any or all of the characteristics of the box part previously described, with the addition of the inturned assembly margins f, each including combined shell and cover materials, which additionally support and reinforce the box side wall margins and at the same time produce the interior finish appearance desirable in boxes of this class, including covering of the side wall edges by portions of the cover sheet.

Figures 21 and 22 sufiiciently illustrate a variation in the last described example of the process consisting in the provision of separate reinforcing strips 50 and 51 in general similar to the reinforcing strips 5 and 6 described in the first example of the process. In this case the reinforcing strips 51 overlie the longitudinal fold lines 39 and extend substantially to the outer edges of the shell strip with the projecting margins, and the inner reinforcing strips 50 overlie longitudinal fold lines 18 and extend a considerable distance on each side to reinforce the side walls and bottom or central box section.

I claim:

1. A method of producing boxes comprising advancing a continuous web of shell material and a continuous web of cover material and securlng them in facial contact, cutting the materials longitudinally to separate corner lap and end wing members, severing the.

combined materials transversely at regular intervals and folding an individual blank "so produced into box form with side and end wing portions turned at right angles to the central or body portion, with corner laps inturned, with end wings turned up outside the corner laps and with marginal portions of certain of the wings including'combined shell and cover material turned in and secured against adjacent inner faces of the box walls.

2. A method of producing box blanks comprising advancing a continuous web of shell material and a continuous web of cover material and securing them in facial contact, producing longitudinal fold lines, producing parallel transverse fold lines corresponding to end formations of contiguous individual tudinally along longitudinal fold lines to separate corner lap and end wing members, and severing the continuous assembly at regular intervals on transverse lines intermediate blanks, cutting the combined materials longiportions with integral side wings, corner laps extending from the ends of the side wings, end wings between the corner laps and wing margins extending from certain of the wings and defined by certain of the fold lines, each of said blank portions including portions of the shell and-cover materials.

3, A method of producing boxes comprising advancing a continuous web of shell material and a continuous web of cover material and bringing them in facial contact with interposed adhesive, cutting the materials longitudinally to separate corner lap and end wing members, severing the combined materials transversely at re ular intervals and folding the individual lanks so produced into box form with side and end wing portions turned at right angles to the central or body portion, with corner laps inturned, with end wingsturned up outside the corner laps and withmarginal portions of the end wings including combined shell and coverv material turned in against inner,

faces of the corner laps and adhesively. secured.

4. A method of producing box blanks comprising advancing a continuous web of shell material and a continuous web of cover material and bringing them in facial contact with interposed. adhesive, producing longitudinal fold-lines, producing parallel transverse fold lines extending entirely across the continuous blank, producing intermediate parallel fold lines extending between the longitudinal fold lines, cutting the combined materials by excising narrow strips extending.

between the long transverse fold lines to separate corner lap and'end wing members, and

severing the continuougi assembly at regularintervals on transverse nes intermediate the short transyerse fold lines, thus producing individual box blanks having central or body portions with integral side wings, corner laps extending from the ends of the side wings,

end wings between the corner laps and end,

wing margins at the outer ends of the end wings defined by the short transverse fold lines, eachof saidblank portions including portions of the shell and cover materials.

5. A method of producing boxes, comprising advancing a continuous web of shell material and a continuous webof cover ma? terial and bringing them in fac' 1 contact with interposed adhesive, cutting thematerials longitudinally to separate corner lap and end wing members, severing the combined materials'transversely at regular intervals and folding the individual blank so producedinto box form with side and end wing portions turned at right angles to the central or body portion, with corner la s inturned, with end wings turned up outsi e the corner laps and wit marginal portions of the side wings including combined shell and of said wings and adhesively secured.

6. A method of producing box blanks comprising advancing a continuous web of shell material and a continuous web of cover material and bringing them in facial contact with interposed adhesive, producing two pairs of longitudinal fold lines, producing parallel transverse fold lines, cutting the combined materials longitudinally by excising narrow strips along certain longitudinal fold lines to separate corner lap and end wing members, and severing the continuous assembly at regular intervals on transverse lines thus producing individual box blanks having central or body portions with integral side wings, corner laps extending from the ends of the side wings, end wings between the corner laps and side wing. margins at the outer edges of the side wings defined by certain of the longitudinal fold lines, each of said blank portions including portions of the shell and cover materials.

7. A method of producing boxes comprising advancing continuous webs of shell and cover material and securing them in facial contact with interposed adhesive, producing longitudinal and transverse fold lines in the continuous assembly, certain of the fold lines definingwing extensions of the combined ma- Y terials, cutting the materials transversely at regular intervals to sever individual box blanks or assemblies, producing longitudinal cuts at a suitable point in the operations to separate end wing and corner lap members, and folding the blanks into box form with said Win extensions including portions of the comblned shell and cover materials inturned and adhesively secured to inner surfaces of the box wall structure.

8. A method of producing boxes comprising advancing continuous webs of shell and cover material and securing them in facial contact with interposed adhesive, producing longitudinal and transverse fold lines in the continuous assembly, certain of the transverse lines defining 'endwing extensions of the combined materials, cutting the materials transversely at regular intervals to sever individual box blanks or assemblies, producing. longitudinal cuts at an appropriate point in the operations to separate end wing and corner lap members, and folding the blanks i-nto boxform with end win extensions including portions of the com ined shell and cover materials inturned and adhesively secured at inner surfaces of the box end wall structure.

9. A method. of producing boxes comprising advancing continuous webs of shell and cover material and securing them in facial contact with interposed adhesive, producing longitudinal and transverse fold lines in the continuous assembly, :certain of the longi-.

tudinal lines defining side wing extensions of the combined materials, cutting the materials transversely at regular intervals to sever individual box blanks or assemblies, excising portionsof said side wing extensions alongside corner-lap portions of the individual blanks, producing longitudinal cuts at an appropriate point in the operations to separate end wing and corner lap members, and folding the blanks into box form with the side wing extensions including portions of the combined shell and cover materials inturned and adhesively secured at inner surfaces of the box side wall structure.

10. A method of producing covered box blanks consisting of a body or shell with superposed and adhesively secured cover paper, and including a central or body portion,

side wings with integral corner laps, end wings, and integral wing extensions consisting of combined shell and cover materials, said method comprising advancing and associating continuous webs of shell and cover material in facial contact with interposed adhesive, pressing and cutting the combined materials to define the side wing, corner lap, end wing and wing extension portions of the individual blanks, and cutting off successive portions of the combined materials of uniform length to produce individual box blanks of the character described.

11. A method of producing covered box blanks consisting of a body or shell substantially every part of which is covered by superposed and adhesively secured cover paper, and including a central or body portion, side wings with integral corner laps, end wings with integral extensions consisting of combined shell and cover materials, said method comprising advancing and associating continuous webs of shell and cover material in facial contact with interposed adhesive, pressing and cutting the combined materials to define the side wing, corner lap, end wing and end wing extension portions of the individual blanks by crease or fold lines, and cutting off successive portions of the combined materials of uniform length to produce individual box blanks of the character described.

12. A method of producing covered box blanks consisting of a body or shell and super.- posed and adhesively secured cover paper, and including a central or body portion, end wings, side wings with integral corner laps and marginal extensions consisting of combined shell and cover materials, said method comprising advancing and associating continuous Webs of shell and cover material in facial contact with interposed adhesive, pressing and cutting the combined materials to define the side wing, corner lap, side wing extension. and end wing portions of the individual blanks by crease or fold lines, and cutting ofi successive portions of the combined materials of uniform length to produce individual box blanks of the character described.

13. A method of producing covered box blanks comprising producing a continuous assembly in which a web of cover material is adhesively secured in facial contact with the web or shell material, producing parallel longitudinal fold lines to define side wings and side wing extensions, producing parallel transverse fold lines to define corner laps, end wings and end wing extensions, cutting the materials longitudinally to produce a corner lap and end wing separation, and severing the assembly at regular intervals to produce individual blanks.

14. A method of producing covered boxes comprising producing a continuous assembly in which a web of cover material is adhesively secured in facial contact with the web or shell material, producing parallel longitudinal fold lines to define side wings and side wing extensions, producing parallel transverse fold lines to define corner laps, end wings andend wing extensions, cutting the materials longitudinally to produce a corner lap and end wing separation, severing the assembly at regular intervals to produce individual blanks and folding the blanks into box form with the side Wings upturned, the corner laps inturned, the end wings upturned against outer faces of the corner laps, the side wing extensions inturned, and adhesively secured to inner faces of the side wings, and the end wing extensions inturned and adhesively secured to inner faces of the corner laps.

15. A method of producing boxes, comprising advancing a continuous web of shell material, advancing a continuous web of cover material, advancing a plurality of strips of sheet reinforcing material to a point of association between the shell and cover webs and pressing all the stated materials together with adhesive supplied to form a continuous reinforced assembly, pressing and cutting the continuous assembly to produce individual blank formations therein, severing individual reinforced blanks from the assembly, and folding the blanks into box form with sidewing extensions including portions of the combined shell and cover materials turned in and adhesively secured to inner faces of the corresponding box walls.

16. A method of producing boxes, comprising advancing a continuous web of shell material, advancing a continuous web of cover material, advancing a plurality of strips of sheet reinforcing material to a point of association between the shell and cover webs and pressing all the stated materials together with adhesive supplied to form a continuous reinforced assembly. pressing and cutting the continuous assembly to produce individual blank formations therein, severing individual reinforced blanks from the assembly, producing longitudinal fold lines or channels in the shell material, producing transverse fold lines, cutting the combined materials longitudinally to separate the corner blank and end wing portions, severing the continuous assembly at regular intervals to (produce individual box blank assemblies, an folding the assembliesinto box form with side wing extensions defined by certain of the fold lines and including portions of the coni-v bined she'll and cover materials turned in and adhesively secured to inner faces of the corresponding box walls.

17 A continuous box production method comprising advancing a continuous web of shell material and a continuous web of cover material and pressing them in facial contact with interposed adhesive, producing longitulv dinal and transverse fold lines defining side wing, corner lap and end wing portions of individual blanks to be produced, severing the continuous assembly at regular intervals to produce individual blanks, cutting the materials longitudinally to separate end wing and corner lap members, and folding over and firmly creasing down side wing portions of the blanks to establish the fold lines as a preliminary to the final box formation operations. 4

18. A continuous box production method comprising advancing a continuous web of shell material and a continuous web of cover material and pressing them in facial contact with interposed adhesive, producing longitudi. "11 and transverse fold lmes defining side.

wing, corner la and end wing portions of individual blan s to be produced, severing the continuous assembly at regular intervals to produce individual blanks, cutting the materials longitudinally to' separate end win and corner lap members, folding over an firmly creasing down side win portions of body portion, turning in'the corner laps, turning up blank end wings against outer facesof the corner laps, and turning in and adhesively securing marginal wing portions consisting of combined shell and body ma terial to inner faces of the corresponding box wall structure. v e

20. A method of producing box blanks comprising advancing a continuous web of shell material, producing longitudinal fold lines thereon, applying and adhesively securing a plurality of distinct reinforcing strips, certain strips overlying the fold lines and others bein located near the shell edges and with margins of the reinforcing strips projecting beyond said edges, applying and adhesively securing sheet cover material, turning and adhesively securing the projecting remforcing strip margins to o posite margins of the shell web and severmg the combined materials transverselyto produce individual blanks.

Signed at New York city in the county of New York and State of New York this 20th day of December A. D: 1922.

HARRY BRIDGMAN SMITH.'

the blanks to establish the fold mes as a preliminary to the final box formation operations, relocating the blank side wings substantially at right angles to the central or a body portion, turning in the corner laps, and turning up blank end wings against outer w faces of the corner laps.

19. A continuous box production method com rising advancing a continuous web of shelf material and pressing them in facial contact with interposed adhesive, producing longitudinal and transverse fold lines defining side I win-g, corner lap and end wing portions of individual blanks to be produced, severing the continuous assembly at regular intervals to produce individual blanks, cutting the materials longitudinally to separate end win and corner lap members, folding over an firmly creasing down side wing portions of the blanks to establish the fold lines as a preliminary to the final box formation operations, relocating the blank side wings substantially at right angles to the central or material and a continuous web of cover

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