US1752608A - Envelope machine - Google Patents

Description

April 1, 1930. A. OLGAY 1,752,608,

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A. OLGAY ENVELOPE MACHINE April 1, 1930.

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A. OLGAY ENVELOPE MACHINE April 1, 1930.

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Filed March 3, 1926 l5 Sheets-Sheet 12 fizz/6721277".- w Zlber' Ufyqy l l I I I I 4 Witness 1 7 April, 1930. A. OLGAY ENVELOPE MACHINE Filed March 3, 1926 15 Sheets-Sheet l4 Juan/Z671- v tfilerz Oggcgy ZUZi/zess W m W April 1, 1930. A. OLGAY ENVELOPE MACHINE Filed March 3. 1926 15 Sheets-Sheet I5 Patented Apr. 1, 1930 UNITED STATES PATENT OFFICE ALBERT OLGAY, GLEN ELLYN, ILLINOIS, ASSIGNOR TO GAW-OHARA ENVELOPE COMPANY, OF CHICAGO, ILLINOIS, A. CORPORATION OF ILLINOIS ENVELOPE MACHINE Application filed March 3, 1926. Serial No. 91,905.

This invention pertains to the manufacture of envelopes of the two-in-one or duplex character, such for instance as that shown in the patent to Sawdon #1,47 0,291 of October 9, 1923, and is more particularly directed to amachine adapted, among other uses, to their manufacture.

The manufacture of duplex envelopes involves a number of operations and with the slow and inaccurate hand methods in vogue before the present machine was devised, entailed an expense wholly out of proportion to the profits. Following the usual mode of procedure, the two blanks, termed herein major and minor or auxiliary blanks, after being cut to the proper shape and size, and after the major blank had been provided with a window and a slit to receive the auxiliary blank, weresuitably gummed, and then assembled by hand. The operator applied gum about the margin of the window opening in the major blank, that is, on the surface which would be interior when the envelope was folded, and applied a previously cut patch of substantially transparent paper over the opening and against the gum; thereafter the same or a second operator applied gum approximately to certain predetermined portions of the interior face of the major blank adjacent and below the ends of the slit, applied gum along a line approximately parallel and adjacent the edge of the flap of the auxiliary blank, ran his or her fingers through the slit to open it, inserted the edge of the flap of the auxiliary envelope blank through the opened slit with the gummed line of the auxiliary blank toward the lip of the slit farthest from the aforementioned 4O gummed portions of the major blank and thereafter engaged the gumined portion of the auxiliary blank with the adjacent lip of the major blank and the gummed portions of the major blank with the body ends of the auxiliary blank. The assembled and secured blanks were then stacked and fed to a folding machine or folded by hand.

The machine to be described herein has been designed to receive the out, windowed and slit major blanks and the cut auxiliary blanks, and to perform all of the manual manipulations mentioned above, including the folding, if required. One such machine has been built and operated with a production of as high as one hundred and twenty assemblies per minute, which would compare with the production of from ten to twenty skilled operators making duplex envelopes by hand.

One of the primary objects of my invention may therefore be said to reside in the provision of a. machine adapted to gum predetermined portions of continuous or substantially continuous streams of maj or and auxiliary envelope blanks, to apply a window patch over the window openings of the major blanks, to assemble each of the major or auxiliary blanks with one of the other blanks and to fold the major blanks about their assembled auxiliary blanks to provide duplex envelopes.

Another important object lies in the provision of a machine adapted to perform any one or any combination of the several operations hereinbefore set forth; for instance, a machine adapted to merely apply gum to redetermined portions of sheets of materia or to merely apply patches over perforations in sheets of blank material and the like, or again, to apply gum about the margins of the window openings of windowed envelope blanks, and a window patch over the opening and to thereafter fold the envelope blank to form a closure.

Another object includes the provision of ,a unique type of window patch applying mechanism adaptable for independent use as above noted. In this connection I have also devised a novel arrangement whereby the window patches, usually out from glassine,

a transparent paper ma be cut in a desired size and as needed y t e applying mechanism. This mechanism is escri ed and claimed in m copending application Serial No. 17 7,490, led March 23, 1927.

A further object includes the provision of a mechanism adapted to insert successive sheets of material or other articles within openings or slits provided in other successive sheets or' articles.

, A still further object is to rovide an easy and novel method by which one sheet of gummed material may be inserted through a slit formed in another gummed sheet of material or other article, whether the inserting be done by machine or by hand.

Man other novelties including the provision of a mechanism to prevent parts of the gumming mechanismfrom contacting with their cooperative parts should blanks fail to be fed to, or become jammed before reaching the ing mechanism, in combination with the several features noted above and the provision of numerous devices of an advantageous nature including the details of their construction, should be quickly appreciated from the description and claims and from the drawing, in which: a

Fig. 1 is a top plan view of a machine constructed in accordance with the invention.

Fig. 2 is a side elevation of the machine shown in Fig. 1 viewing the machine of Fig. 1 from the right looking lengthwise of the sheet.

Fig. 3 is a sectional view taken on the line 3-3 of Fig.1.

Fig. 4 is a side elevation of the machine looking in the opposite direction from that of the view of Fig. 2.

Fig. 5 is a sectional view taken on the line 55 of Fig. 1, parts being omitted for the sake of clearness.

Fig. 6is a front elevation, parts being in section on the line 66 of Fig. 2

Fig. 7 is 'a transverse sectional view of the machine taken on the line 7-7 of Fig. 2, parts being omitted for the sake of clearness.

Fig. 8 is an enlarged fragmentary section taken on the line 8-8 of Fig. 6.-

Fig. 9 is an enlarged fragmentary plan view of the auxiliary envelope or blank inserting mechanism and associated parts.

Fig. 10 is a fragmentary vertical sectional view taken longitudinally of the machine through the window cutting mechanism.

1 Fig. 11 is an enlarged sectional detail of the glassine feed rolls and knife.

Fig. '12 is an enlarged fragmentary section :tlkell substantially on the line 12-12 of Fig. 13 is a section taken along the line 13-13 of Fig. 12.

Fig. 14 is a detail view taken on the line 14-14 of Fig. 12, showing a belt carrier drive and arrangement.

Fig. 15 is a. vertical section of the patch applying mechanism taken on the line 1515 0 Fig. 17.

Fig. 16 is a detail view of the operating mechanism for thepatch applying mechanism looking at the right hand end of Fig. 17 viewing the sheet in the direction of its length.

Fig. 17 is a top plan view of the patch applyin mechanism and operating means there or, parts being broken away.

Fig. 18 is a plan view of a portion of the rear end of my machine coupled to the forward end of a folding mechanism adapted to fold the duplex envelopes.

Fig. 19 is a vertical section taken on the line 19-19 of Fig. 18. I

Fig. 20 is a diagrammatic illustration of the manner in which the major and minor and auxiliary envelopes are prepared and combined.

Fig. 21 is a view of a duplex envelope ready for folding and Fig. 22 is a perspective view, taken from the front, of a duplex envelope after being folded and ready for use. For further views of this envelope see the Sawdon patent to which reference has above been made.

The machine in general Generally speaking the machine'may be said to consist of a major blank operating mechanism including a conveyor, an auxiliary blank operating mechanism, mechanism for combining the auxiliary blanks with the major blanks and means for pressing and folding the assembled or combined blanks. The larger blank operating mechanism and conveyor may be said to include a magazine for supplying the blanks, a feed mechanism for delivering the blanks from the magazine onto the conveyor, a conveyor adapted to receive the blanks fed to it from the feed wheels and carrying pins for timing the forward feed of the blanks with the conveyor, gumming mechanism for applying gum to certain predetermined portions of the blanks carried by the conveyor, mechanism for drop ping a cooperative gumming roll or platen out of cooperative position with the gumming roll should envelopes or blanks for any reason cease to pass between the gumming rolls, means for cutting window patches and applying them over the window openings in the major blanks, mechanism for opening a preformed slit in each major blank, mechanism for inserting an auxiliary blank in the Silt of each ma or blank, a secondary 0011-.

veyor, mechanism for momentarily arresting the travel of the major blank during the auxil-iary blank inserting operation, a pressin device for pressing the assembled blanks together to secure their gummed portions and mechanism adapted to automatically receive the combined blanks and fold them successively into duplex envelopes. The auxiliary blank mechanism also includes a magazine, a conveyor, a feed mechanism adapted to feed the blanks from the magazine onto the conveyor, means in connection with the conveyor for predetermining or timing movement of the blanks with the conveyor, an envelope flap scorer or creaser mechanism adapted to turn the flap of each auxiliary blank, mechanism for applying gum along a predetermined line adjacent the flap of each auxiliary blank, a secondary conveyor with means for turning and tilting each auxiliary blank into a position where it may be inserted within the opened slit in its corresponding major blank, mechanism for temporarily retarding or holding one corner of each auxiliary blank to permit a diagonally opposite corner to swing into position for insertion in the slit of its corresponding major blank and mechanism for completely inserting each auxiliary within the open slit of its corresponding major blank.

The machine generally is mounted upon a suitable frame 2 which is provided with brackets, bearing bosses, bearings etc. wherever needed and as such fall well within the skill to be expected of the ordinary mechanic they will be but generally described herein. The machine and the several mechanisms forming part of it are for the most part driven in synehronism and from any suitable source or sources of power, although in the present instance I prefer to utilize a single electric motor 3,'geared down through a gear 4 and a pulley 6 to drive the main power shaft 7 through the intermediary of a belt- 8. The power shaft 7 is provided with an idling pulley 9 and a splined pulley 10 in order that the belt 8 may drive the machine or not, as desired, by shifting the belt with the beltv shifter 11, while the opposite end of the shaft is equipped with a hand Wheel 12 in order that the machine may be operated by hand if at any time such be desirable;

Referring to Figs. 1, 2, 4, 5 and 6, it will be I noted that the belt shifter 11 is arranged to be operated by means of a lever 13 if the operator is at the front or magazine end of the machine and by means of several levers 13 which are connected to a rock arm 14 running down one side of the machine and suitably supported therealongand connected to a lever 15, a pivoted link 15' and connection 16 to the shift bar 11 if the operator is out of reach of the lever 13. One lever 13 is shown arranged on the side of the machine opposite that along which the rock arm 14 is supported but is connected across the machine to the rock arm, as shown inFigs. 1, 4 and 6. This mechanism is also well within the skill of the ordinary .mechanic to construct and for this reason further description is deemed unnecessary.

From the shaft 7 power is delivered to the various mechanisms as will more clearly apear hereinafter, but it should be understood that ,if it be desired to drive the several mechanisms independently or dependently upon one another through several different sources of power or power transmitting mechanisms, this may be readily arranged. I do not, therefore, desire to be limited to the use of a single countershaft or of a single electric motor or other power device.

The wuvjor bZcm-k magazine, feed, conveyor and operate/Lg meehamsm The front or forward end of the machine carries brackets 17 upon which a plate 18 carrying bearing brackets 19 is mounted and in partoftheauxiliaryblankfeed anddrivemechanisms, a magazine 20 is pivotally mounted, as shown at 21, in order that the magazine, which is adapted to receive a stack of uniformly'aligned major blanks (designated A in Figs. 5 and 20) may be adjusted to various angles to suit the angle at which the feed wheel 22 will contact or is to contact with the blanks. Bars 23 pivoted to the magazine at 24 (one on each side) are arranged for adjustment in clamp blocks 26 which are pivoted on a rod 27 forming a portion of the frame 2 of the machine. By unclamping the bars 23 they may be slid through the blocks 26 to any desired position and secured, as will be understood, to vary the inclination of the magazine. Each side of the magazine 20 is provided with a guide strip 28 which is adjustable toward and from its opposed guide strip by means of clamps 29 engaged in slots 31 formed transversely of the magazine. In

' the bearing brackets 19. which also support j this manner the magazine may be accommodated to various sizes of major blanks.

The feed wheel 22 is mounted on a shaft 33 driven by means of a sprocket 34 and chain 35 from a sprocket 30 keyed to the power shaft 7. The construction and operation of the feed wheel are old and well known and do not form, except in combination, a portion ofv the invention hereof, although for a thorough understanding of a feeding mechanism suitable for my present purpose reference is made to my prior Patent No. 1,443,430, dated January 30, 1923 and assigned to the assignee of the present application. It 'willsufiice for my purposes here to say that the feed wheel is preferably driven in timed relation to the conveyor mechanism and supplies the blanks from the magazine 20 one at a time but 111 close succession.

The conveyor mechanism for the major blank may be best understood by reference to Figs. 1, 5, 6, 7 and 8, wherein it will be observed that angle guideways 36 are arranged longitudinally of the machine and on either side of the magazine; and in order to engaged over bars 38 extending transversely of the machine (only one forked member 37 being shown in Figs. 5 and 10, for the sake of clearness). When it is desired to adjust these guide-ways to new positions thumb screws 39 (see Fig. 10) are loosened and the guides shifted toward or from one another, as the need may be, along the transverse bars 38. At intervals lengthwise of the machine transverse bars 41 are arranged to serve as supports for a number of hold-down or presser guides 42 for the blanks, and also extend longitudinally of the machine and preferably from some point to the rear of the feed wheel, two preferably cooperating with the angle guides 36 to hold the edges of the blanks down in proper position and those in the center serving to keep the paper from warping or bulging as it passes along the conveyor. These guides also are supported by forked members 43 secured to the bars 41 by thumb screws 44 in order that they may be adjusted transversely of the machine to any desired position.

cooperatively engaging the feed wheel 22 for feeding the major blanks onto the conveyor is a wheel 45 which is secured on a shaft 46 carried in brackets 46 in turn pivotally carried by a bar 46"- forming a transverse member of the machine. Through the medium of adjusting screws 47 and set screws 47 the cooperative feed wheel is adjusted with respect to the feed wheel 22. Sprockets 47" carrying the conveyor chains 48 are also mounted for transverse adjustment on the shaft 46 which is driven by a gear 49 meshing with a gear 51 secured on the shaft on which the feed wheel is mounted. The conveyor chains 48 pass over sprockets 52 splined for transverse adjustment along the shaft 53 and over transversely adjustable idlers 54 which are supported by depending brackets 55 secured to the bearing bosses of sprockets 52, while channel guides 56 slidably supported on the transverse bars 38 an suitably connected to the bearing bosses of sprockets 45 and 52 serve to guide the conveyor chains 48 during their travel longitudinally of the machine.

The convey r chains 48 are arranged with their associated mechanism to be adjusted transversely of the machine toward and from one another as before intimated and so that either may be adjusted independently of the other. To this end the channel guide-ways 56 are provided with depending portions 56 (see Figs. 5, 7 and 8) which are drilled and threaded internally to receive threaded shafts 57 and 58. The shaft 57 is a hollow shaft 'journalled for rotation about and independently of shaft 59 a continuation of shaft 58 which is j ournalled in a bearing boss 61 at one side of the machine and held against displacement therefrom by a collar 62, although free to rotate in the boss. Collars 63 and 64 secure the hollow shaft 57 against longitudinal dis lacement and this shaft is provided with a earing 65 at one side of the machine and a hand wheel 66 is secured to its outer end where it projects from the side of the machine. A similar but smaller hand wheel 67 is secured to the shaft 59 and b turning the hand wheel 67 the threaded shaft 58 may be rotated to adjust the right hand (viewing Fig. 7) channel guide 56 toward or from the right hand side of the machine, whereas by rotation of the hand wheel 66 the shaft 57 may be rotated to adjust the left hand channel guide 56 toward or from the left hand side of the machine. It will be apparent therefore that either or both of the channel guides may be adjusted.

As the major blanks are fed onto the conveyor chains 48 by the feed wheel 22 and cooperative wheel 45 they are momentaril held between a spring presser finger 69 similar to the spring presser finger for the auxiliary blanks and shown at 68 in Fig. 12, and is suitably supported by one of the frame members 41 of the machine and a center longitudinal guide and blank support 69 which may be fixedly secured to the frame of the machine substantially centrally thereof as is shown in Fig. 7. The blank is thus momentarily retarded until pins 71 secured to the conveyor chains and, for the present type of envelo e, indexed with one another, contact with t e rear edges of the blank when the latter will be carried forward by the movement of the conveyor chains.

Major blank yawn/ming mechanism In the present instance, my machine is shown adjusted and arranged for the manufacture of duplex envelope major blanks, such as those illustrated as at A in Fig. 20. Each of the blanks is cut in substantially the shape shown and provided with a slit S and a window opemng 0 prior to their placement in the magazine 20. In order to secure a window strip W over the window, gum is preferably applied around the margin of the opening, as indicated in dotted lines at G, and in order that the body of the auxiliary blank may be secured to the inner face of the major blank and through the slit S therein, gum is applied to the interior face of the major blank, preferably at places-indicated at G and suitable mechanism operates to turn the lip L formed by the slit S upwardly to open 1t. The mechanism for applying gum to the major blank at the-portions G and G will now be described.

Suitably mounted in brackets 72"secured to the frame of the machine is a shaft 73 carrying a gumming roll 74 on which gumming pads or dies 75, 76 and 77 are preferably adjustably mounted; the pad or die 76 being formed to apply gum about the window opening 0 and the pads or dies 75 and 77 being formed and arranged to apply as indicated at G. The gumming ro is driven through the intermediary of a sprocket 78 secured to the shaft 73 and over.

which chain is arranged, while gum is supplied to the dies or pads 75, 76 and 77 by a positively driven roll 79 mounted on a shaft 80 and geared through a gear 81 meshing with a gear 82 secured to the shaft 83.

The shafts 80 and 83 are journalled in the side members of a receptacle 85 and the shaft 83 carries a gum supply roll 84 revolving in the receptacle 85 which is filled with glue. The receptacle is supported by the transverse frame members or transverse bars 41. The gum roll 84 is positively driven and for this purpose the shaft 83 is extended to the side of the frame 2, journalled therein as shown at 86 and connected through a gear- 87 with a gear 88 secured to the shaft 73 carrying gumming roll 74. It will here be noted that the feed, conveyor and gumming roll are driven in timed relation one with the other. The gumming roll 74, in order to properly perform its function of gumming each 'maj or blank as it passes along the conveyor, is provided with a cooperative platen roll 89- mounted on a shaft 91 to provide a support for the blanks as they are gummed, but as it would occasion series trouble were the gumming roll to contact with the surface of the platen which might happen should blanks fail to be fed for any reason, I provide suitable mechanism such as. that described and claimed in my application Serial No. 14,658, entitled Machines for manufacturing book, .covers and the like, filed March 11, 1925 and assigned to the assignee of the present application, or similar mechanism, such as that now to be described to prevent such possibility.

Platen drop mechanism roll the face of the platen roll 89 which is preferably rubber covered, by dropping the platen below the line of contact or tangency between the gumming dies 75, 76 and 77 and the surface of the platen. The platen roll 89, as

In the present instance the has been stated before, is mounted on a shaft.

91 to which a gear 92, adapted to mesh at all times with gear 88, is secured and is carried in bearings formed in the ends of arms 93 pivoted at their opposite ends on stub shafts .94 secured to brackets 95 attached to the frame 2 of the machine. The platen roll,

its shaft and the gear 92 may swing about the pivots or trunmons 94 to a slight extent when lockvbars 96 (one 0.1 each side of the machine) are swung in an anti-clockwise direction (viewing Fig. 3) about their pivots 97 and thereby released from engagement with ends of bars 98 secured to the arms 93.

Normally, that is,when major blanks are being fed successively-and in their. desired 4 order-through the machine along the conveyor they ride over the tops of rods 99, which are preferably laced between the conveyor chains 48, hol in them down in the positions indicated in figs. 3 and 8. As these rods are rigidly secured to adjustable link bars 101, (one on each side of the machine) which also serve as a weight and as both the rods 99 and link bars 101 are pivoted on a transverse bar 102 extending across the machine and the rods in their lowermost positions lie against the tops of the adjacent frame member 38, the rods and link bars are held against counterclockwise rotation.

' The adjustable link bars 101 are in turn connected by rods 103 pivoted to the bars 96 and consequently should the machine for any reason fail to feed the major blanks continuously along the conveyor,'the rods 99 will be swung in a clockwise direction (viewing Fig. 3) about the pivots 102 under the influence of the weight of the adjustable links 101 and thereby release the lock bars 96, which for their purpose are provided with a shoulder, from engagement with the bars 98 and the platen roll will drop until limited by the platen returning mechanism.

The platen return mechanism includes vertically movable arms 104 (one on each side of the machine) pivotally secured at 105 to the bearings formed in'the ends of arms 93 for reception of the shaft 91, and provided with longitudinal slots 106 through which the shaft 73 of the gumming rolls extends. A cam follower 107 is pivotally secured to the upper end of each arm 104 and is adapted to follow the movements of a cam 108 fixedly secured to the shaft 78 to rotate as the shaft and gumming roll rotate.

When the major blanks are passin throu h the machine properly the'platen ro is hel in its uppermost position and cooperates with the gumming roll and in this position the high point 109 of the cam 108 s arranged to ust clear the cam follower 107, but when the platen roll has dropped because of failure of feed of the major blanks the cam follower being attached to the arm 104 drops with the arm and the roll and, because of the slot 106, engages at all times throughout the surface of the cam 108. As the high point 109 of the cam lies between the same radii and in the subtended arc of the gumming diesor pads 75, 76 and 77, the dles or ads will'be cam cooperates with thecam follower 107 to raise the arm 104 and thus the platen roll to their normal positions upon each revolution of the gumming roll. If at the time the disposed diametrically away rom the platen when the high point of the

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