US1343146A - Envelop-machine - Google Patents

Description

H. LEVINE.

ENVELOP MACHINE.

APPLICATION FILED AUG-I7, 1917.

1,343, 1 46.. Patented June 8, 1920..

6 SHEETSSHEET I.

Fig.1-

INVENTOR WITN SSES H; LEVINE.

ENVELOP MACHINE. APPLICATION FILED AUGJI, 19H.

Patented June 8, 1920.

6 SHEETS-SHEET 2.

H. LEVINE.

ENVELOP MACHINE.

APPLICATION FILED AUG.I7, 1911.

WITNE ES Q L A-Ll H. LEVINE.

ENVELOP MACHINE.

APPLICATION mzo Auem. 1911.

Patented June 8, 1920.

6 SHEETSSHEET 4- H. LEVINE.

ENVELOP MACHINE.

APPLICATION FILED AUG.17, 1917.

1 343 14% Patented June 8 192%,

6 SHEETS-SHEET 5.

WITNE ES H. LEVINE.

ENVELOP MACHINE.

APPLICATION FILED AUG.I7. 1917.

Patented J 11116 8 19% 6 SHEETSSHEET 6.

IN VENTO R WITN ESSE Nrrso sr TEE UFFEQE.

ENVELOP-MAGHINE.

1 are, me.

To all whom it may concern.-

Be it known that I, HARRY LEVINE, re-

siding at Brooklyn, in the county of Kings and State of New York, have invented new and useful Improvements in Envelop-Machines, of which the following is a specification.

This invention relates to envelop machines and particularly to that class employed in the manufacture of what are known in the art as window envelops.

The invention is principally found in an improved method and mechanism for feeding the blank and regulating its movement through the machine whereby the window opening in the blank will be accurately and positively presented to the patch applying mechanism so as to uniformly insure an application of the patch over said opening. The invention also'consists in the provision of a patch applying mechanism which will positively obviate the necessity of penetrating the patch by a mechanical gripping means so as to set up greater accuracy in the delivery of the cut patch to the assembling means and at the same time warrant a positive delivery of said patch to said assembling means.

A still further object of the invention lies in the provision of patch applying mecha nism of a design which will cause patches of fixed and determined lengths to be severed from the supply roll and uniformly delivered in successive order to the assembling means, from which latter point, the patches are intended to be singly presented to the envelop blanks as they are correspondingly fed in successive order through the machine.

A still further object of the invention is to provide a machine of the class specified in which the performance or operation of applying transparent patches to window envelop blanks can be completed with rapidity, absolute accuracy and with the assistance of a minimum manual assistance.

Another feature of the invention resides in the combination between a specific blank collecting and feeding mechanism and an especially designed patch applying mechanism, care being exercised in the selection of such mechanisms which need not be associated with delicate and uncertain accessories for timing the movement of the blank relatively of the patch and at the same time always resulting in a true alinement of the patch with the opening of the blank.

Specification of Letters Patent.

Patented June 8, 1920.

Application filed August 17, 1917. Serial No. 186,795.

Another object of the invention resides in the arrangement of parts in which the machine as a whole will be extremely compact so as to take up comparatively little floor space.

Another important feature of the invention resides in the provision of means for elfecting an even distribution of the blanks to the delivering mechanism, devices being employed to cause the same to be conveyed from the blank collecting mechanism in true alinement with the patch assembling means at all times.

Another object of the invention is to provide an arrangement in which the blanks are fed lengthwise through the machine, associating such mechanism with patch ap plying means which will operate to gradually advance the front end of the patch over the window opening in the blank and successively cause the patch to be fully applied to the blank. In this manner, I find that remarkable uniformity in the application of the patch to the opening results and the employment of complicated adjusting mechanism for establishing such alinement of the patch with the opening can be entirely dispensed with.

Figure 1 is a plan view of the machine.

Fig. 2 is a side view thereof.

Fig. 3 is a similar view looking at the opposite side of the machine.

Fig. 4 is a vertical longitudinal section therethrough.

Fig. 5 is a vertical section of the patch cutting and applying mechanism showing parts in full lines.

Fig. Sis a section through the operating cam for the oscillating arm of the patch applying and cutting mechanism.

Fig. 7 is a plan view of the gumming member.

Fig. 8 is a section therethrough showing the same associated with its co-acting cylinder.

co-acting roll and the operating gearing therefor.

Fig. 9 is a side View} Of the guard and No invention is claimed for the specific manner of mounting those elements or instrumentalities which constitute my 1mprovements and the specifying of such parts as the supporting frame will only be done in a general way. This is preferred for the reason that I do not Wish to limit myself to any particular form of frame as the design thereof is wholly immaterial for my purpose. Therefore, a suitable frame is indicated generally at 12, the same having a driven shaft 13, journaled in its respective side pieces 14 and 15, which is fixedly mounted on a blank collecting cylinder 16, the same carrying a conventional gripping mechanism 17, of any improved well known construction which will operate, first to positively grip the blank and then secondly release itself therefrom automatically after said blank is carried part way around the cylinder. This collecting cylinder is associated with blank guiding and alining plates 1818, which are arranged in spaced parallel relation so that the extreme edges of the bottom and top flap of the blank can be brought into sliding contact with the inner faces ofsaid plates and thereby prevent any tendency of the blank to shift laterally from its intended alinement in the machine. This feature of the invention is one of importance as I rely upon this arrangement to insure alinement of the Window opening in the blank with the patch as the latter is delivered from the patch applying mechanism as will be described in more detail hereinafter. These plates are of arcuate form and I extend part way around the cylinder, their front ends terminating in relatively close proximity to a pressing and feed roll 19,

which is also journaled to revolve in said frame 12. This roll co-acts with the cylinder 16, in order that the blank may be initially fed to first the gumming mechanism and then the assembling means.

Designed to co-act with the blank collecting cylinder is a rocker 20, having an effective lifting end 21, to which a suction tube 22, leads in order that suction may be induced at said lifting end to cause the blanks to be successively lifted from the stack and presented to the gripper 17 of said. cylinder 16. The cylinder is therefore recessed at 23, for the purpose of accommodating said end, 21, of the arm 20, whereb the forward edge of the patch may be freely grasped by the gripper 17, as the cylinder revolves.

The arrangement herein illustrated is such that the blanks are intended to be fed lengthwise through the machine with the longltudinal axis of the window opening parallel with the longitudinal axis of the machine. The gumming mechanism consists of a driven shaft 24, on which Wheels 25-25, are fixedly mounted and between which the gummer member 26, is secured. This member may also be of any well known design and is in tended to co-act with a roll 27, which is grooved at 28, in order that the gumming strip or surface 29, of said member 26, can be accommodated and the gum thereby held out of contact with the surface of the roll when the machine is running Without the feeding of blanks therethrough. Supported from the frame 12, is a gum tray 30, in which is mounted, a revolving roll 31, which is arranged in operative contact with a similar roll 32, whereby the gum which is taken on to the roll 31, will in turn, be taken up by the roll 32, where it will be finally delivered to the gumming member 26, through the fact that said roll 32, is arranged to contact therewith as it revolves.

Driven shafts 33 and 34, are fixedly supported from the frame 12, and each has mounted thereon, a suitable number of rolls 35. The rolls of the shaft 33, are arranged in co-acting contact with the rolls on the shaft 34, the point of contact being along a direct line with the passage of the envelop blank through the machine and said rolls therefor operate to advance the blank in the direction of the patch applying mechanism at the opposite end of the machine.

superposed guard strips 36 and 37, extend longitudinally through the machine and as illustrated in Fig. 4, said strips are spaced relatively to permit the envelop blank to freely pass therebetween. These strips are designed to hold the blank against vertical derangement during its period of movement from the blank collecting cylinder to the patch applying mechanism. The gumming member 26, is grooved at 38, to accommodate itself to the upper strip 37, as shown in Fig. 8. At a point directly above the roll 27, said strip 37, is provided with an arcuate reduced section 39, so that the groove 38, in the surface 29, need not entirely traverse said surface.

The shaft 13, on which the blank collecting cylinder is mounted is provided with a cam 40, which co-acts with a roller 41, on an oscillating arm 42. The said arm is bifurcated at 43, to accommodate the shaft 13, and on reference to Fig. 2, it will be seen that one of the branches of the bifurcated portion is connected with a retractile spring 44,.by means of which the roller 41, is actively held against said cam 40. A bell crank lever 45, is pivoted at 46, to a bracket 47, which extends from the frame 12. This bell crank lever has its arm 48, operatively connected at 49, with the oscillating arm 42. The arm 50, of said lever, supports a revolving pressing roll 51, which co-acts with the cylinder 16, to hold the blank in active contact with said cylinder when the gripper 17, is released from the blank. The association of the roll 51, with. the cylinder 16,

and guard plates 1818, is such that the blank is secured against possible derangement and as a consequence, the blank, when delivered to the feeding mechanism of the machine, will be arranged with its window opening in proper alinement with the severed patch as the latter is delivered from the vpatch applying mechanism. The cam 40, is so desi ned that as long as the gripper 17, is in con nement with the envelop blank, the roller 51, is out of contact with the cylinder 16, but as stated, as -soon as the gripper is released from the blank, the roller 51, is efiectively advanced against the cylinder 16, for the purpose set forth.

The patch applying and assembling mechanism, consists of feed rolls 52, and 53, between which the transparent paper 54, is adapted to pass from its reel 55. From the rolls 52 and 53, the transparent paper passes between the shear blades 56 and 57. The blade 57, is fixedly mounted upon a stand 58', which rises from the frame 12. The other blade 56, is movably mounted and is designed to co-act with the fixed blade to sever portions of the paper to form suitable patches for application over the openings in the envelop blanks. volubly supported from the stand 58, and is adapted to co-act with a similar superposed roller 60, which is mounted to slide on the frame 61, of the blade 56. A spring 62, on the frame 61, is arranged to bear against the mounting 63, from which the roller 60, is supported whereby the latter is adapted to yield relatively of the roller 59, when the two are in active co-acting contact. The rollers 59 and 60, are disposed immediately in advance of the shear blades and as they are supported from said blades, it follows that when the latter are separated for the passage of a predetermined length of transparent paper therethrough, the rolls are correspondingly separated, so as to not obstruct the free passage of the paper. Any suitable well known mechanism may be employed for moving the shear blade 56 and its roll 60 with relation to the co-acting blade 57 and its roll 59 and for properly timing such movement. Such mechanism is conveniently illustrated at A. However, when the shear blades are advanced relatively to sever the paper, the rolls 59 and 60, will be brought into pinching contact with the paper and the requisite length of the latter severed in a uniform and accurate manner at all times.

From the rolls 59 and 60, the transparent paper passes into a conduit 64, the latter being fixedly mounted between said rolls and rolls 65 and 66, the former constituting a part of what I have described, an assembling means. The roll 66, is supported to revolve in the arms 67, fixed to a shaft 68, which is adapted to oscillate. This shaft is A roller 59, is reprovided at one end with a fixed arm 69,

which is pivoted at 70, to an oscillating arm 71. This arm is provided with a bifurcated end 72, which is received by a driven shaft 73, the latter carrying the cam 74, which coacts with a roller 75, on the oscillating arm 71. A spring 76, is operatively connected with the arm 71,.whereby to hold the roller 75, in active contact with the cam. The said shaft 73, supports rolls 76-76', and an intermediate disk 77, the width of the latter being preferably greater than the width of the rolls 76-76', and as shown, its peripheral surface is arranged in coacting relation with the roller 65.' The said rolls 76'76, and 77, together with the roller 65, constitutes the assembling means which functionates to permit the blank and patch to be finally associated with each other.

A rocking shaft '78, on the frame 12, is provided with a bracket 79, in which a pressing roll 80, is journaled to revolve. This roller is arranged in yielding contact with the roller 65, so that as the severed patch is discharged from the conduit 64, and beneath the roll 66, it will be fed first between said roll 65, and the adjacent roll 80, and then between the said roll 65, and the intermediate disk 77, the latter thus serying as a bed against which the blank is firmly supported as the severed patch is in course of point approximately between the rolls 65, and 66, so as to receive the patch there-' under as the same leaves the conduit 64. A similar lower extension 85, is provided on said guide and the same terminates between the said roll 65, and the intermediate disk 7 7, whereby the structure continues to guide the patch accurately in the presence of the blank as the latter is fed through the machine.

Having described the essential structural features of the invention, the operation thereof is described as follows :l3lanks are arranged in stack form beneath the oscillating member 20, the latter, it being understood, may be of any suitable well known construction which will operate to pneumatically lift one blank at a time and present the same to the gripper 17. As stated, the blanks are intended to be fed lengthwise through the machine and is thus intended to take hold of one of the end flaps of the blank. As the cylinder 16, revolves, the blank is carried between the straightening or alining plates 18-18,

the gripper 17,

where the extreme ends of the bottom and sealing fiaps of the blank are intended to freely glide over the inner surfaces of said plates. The gripper 17, releases its hold upon the blank as soon as it passes the pressing roll 51.- The pressing roll is then automatically advanced into pressing contact with the blank and the latter continues to feed, first upward over the c linder 16, and then under the front end of t e upper guard strip 37, and thence between the cylinder 16, and said roll 19. As previously stated, the gumming mechanism is of any suitable well known design which will ermit of the introduction successively of lanks thereto in order that the marginal surfaces of the window openings therein, can be supplied with gum ready for the receipt of the transparent patches thereto. From the gumming mecha nism, the blanks continue to move through the instrumentalities elsewhere described, where they are singly brought between the roll 65, and the mating rolls 7676 and 77. At this point, it will be observed that as the blank passes between said roll 65, and the disks 7 67 6, and 7 7 a previously severed patch will have been fed through the applying mechanism and presented to the blank whereby what is termed the front end of the patch in this instance, will be uniformly brought over the front end of the window opening. As the blank continues, it is seen that the patch as it is fed from the applying mechanism, will also continue to move until it is wholly arranged in firm contact with the marginal gummed surface around the window opening. The rolling contact of the roll 65, against the patch and blank and the association of the roll 65, with the intermediate disk 77, are features of importance which I desire to particularly emphasize, as through the arrangement, it is found that the patch is more evenly applied to the said gummed surface around the win- -dow opening.

The construction of the patch severing and applying mechanism is such that any obvious and well known means can be employed for actuating the shear blade 56, according to the length of the patch desired, it being understood that the arrangement herein provided is such that patches are cut in predetermined lengths according to the sizes of the window openings. Therefore, as the transparent material passes between the rolls 52 and 53, it is fed for a fixed length through the shear blades 56 and 57, until the front end of the patch is brought over the roll 65. At this instant, the arm 71, will have been actuated to cause the roller 66, to be advanced yieldingly against the patch and simultaneously with this operation, the shear blades will have been adjusted to cutting positions. Also at this instant, the impinging rolls 59 and 60, will be brought into impinging contact with the transparent paper of the advanced length which constitutes the patch so as to hold the same momentarily during the cutting operation. In this way, the patches can be cut accurately, in rapid successive order and uniformly delivered to the assembling means to be presented to the blanks as they are fed through the machine. After the blanks, with theirapplied patches are delivered from between the roll 65, and the said rolls 76--76', and 77, they are taken between delivery rolls 83'-83, and finally discharged at the adjacent end of the machine.

In the modified form of the invention shown in Figs. 11 to 13, inclusive of the drawings, I have substituted a revolving segment 86, for the oscillating roll 66, else where described herein. This segment is fixedly mounted on a revolving shaft 87, having a fixed gear wheel 88, arranged in mesh with a gear wheel 89, on the shaft 90. This shaft carries a roll 91, which is the same as the roll 65, in the first described form of the invention and over which the patch is adapted to be fed as it is discharged from the severing mechanism. The revolving of the segment 86, in the presence of the roll 91, functionates in the same manner as the oscillatory roll 66. The dotted line illustration of the segment shown in Fig. 11, is intended to illustrate its relation to the patch conduit 92, when the patch is about to pass on to the roll 91. The full line position represents the relation of parts necessary for the active introduction of the severed patch between the roll 91, and the co-acting disk 93. This disk is the same as the disk 77, described in the first embodiment of the invention and is associated with a patch guiding frame 94, whereby the severed patch will be operatively conveyed between said roll 91, and the mentioned disk 93, to catch up with the patch as the latter enters between said parts. The frame 94, is also associated with a pressing roll 95, which operates to yieldingly advance .the patch in active feeding contact against the roll 91. The said roll 95, is supported from a rocking shaft 96, which is normally actuated under the tension of a spring 97 to hold the roll 95, against said roll 91. The

shaft 90, has its gear 89, in mesh with a larger gear 98, on the shaft 99, of the disk 93.

This modified arrangement of the device is associated with cutting shears 100, and 101, which are identical with those described in said first embodiment of the invention. These shears also include impinging rolls 102 and 103, which are associated therewith so as to be applied in pinching contact with the transparent paper immediately at the time of the severing opera tion.

What I claim is:

1. In patch feeding mechanism for winhaving a reei'procatorymovementwith re lation to the first.

2. In patch feeding mechanism for window envelop machines, means for supporting a roll of patch material, means for unreeling the patch material, severing mechanism for cutting the material, and means for yieldingly gripping the material during the severing operation, the severing mechanism comprising a pair of relatively movable knives, the gripping means including co-acting rollers carried by said knives.

3. In patch feeding mechanism for window envelop machines, means for supporting a roll of patch material, means for unreeling the patch material, severing mechanism for cutting the material, and means for yieldingly gripping the material during the severing operation, the severing mechanism comprising a pair of relatively mov able knives, the gripping means including co-acting rollers carried by said knives and arranged in parallel relation to the cutting edges of said knives.

4. In patch feeding mechanism for window envelop machines, means for support ing a roll of patch material, means for unreeling the patch material, severing mechanism for cutting the material, and means for yieldingly gripping the material during the severing operation, said gripping means including a pair of co-acting elastic rolls normally separated out of gripping relation to each other and adapted to be brought into gripping relation with each other.

5. In patch feeding mechanism for window envelop machines, means for supportw ing a roll of patch material, means for unreeliiig the patch material, severing mechanism tor cutting the material, and means for yieldingly gripping the niaterial luring the severing operation, said mechanism iii- "cliidiiigwpair OfiltlittbVQlY movable knives,

the gripping means including a pair of coactiiig elastic rolls carried by the knives of said severing mechanism.

6. In a machine of the class described, the combination of means for severing patches from a roll of patch material, intermittent means for grasping the free end of a patch prior to operation of said severing means, and intermittent means between said severing means and the first said intermittent means and operable for gripping said patch .near the line of severance during operation of said severing means.

7. In a machine of the class described, the combination of means for severing patches from a roll of patch material, intermittent means for grasping the free end of a patch prior to operation of said severing means and for feeding severed patches to position for application to envelop blanks, and intermittent means between said severing means and the first said intermittent means and operable for gripping said patch near the line of severance during operation of said severing means.

In testimony whereof I ailix mysignature.

HARRY LEVINE.

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