US1474832A

US1474832A - Patch-applying mechanism for window envelopes

Info

Publication number: US1474832A
Application number: US519723A
Authority: US
Inventors: Carl O Ekvall
Original assignee: Individual
Current assignee: Individual
Priority date: 1921-12-03
Filing date: 1921-12-03
Publication date: 1923-11-20
Anticipated expiration: 1940-11-20

Description

4 Sheets-Sheet l INVENTOR 660! 49.2%;

BY Y4 ATTORNEY Nov. 20, 1923.

C. 0., EKVALL PATCH APPLYING MECHANISM FOR WINDOW ENVELOPES Filed Dec. 5, 1921 M T i Z w Z! w 1 5 1 W9 0 M m 5 6 .5 5

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Nov. 20 1923. 11,474,832

c. o. EKVALL PATCH APPLYING MECHANISM FOR WINDOW ENVELOPES Filed Dec. 5, 1921 4 Sheets-Sheet 2 g INVENTOR (82 8 @arl 01M W 9 ATTORNEY Nov. 20 1923. 11,474,832

v c. o. EKVALL PATCH APPLYING MECHANISM FOR WINDOW ENVELOPES Filed Dec. 5, 1921 4 Sheets-Sheet 5 INVENTOR Nov. 20,1923. 1,474,832

I c. 0 EKVALL.

PATCH APPLYING MECHANISM FOR WINDOW ENVELOPES F le 1921 4 Sheets-Sheet 4 INVENTOR Patented Nov, 2a 1923. intense CARL O. EKVALL, OF NEW YORK, N. Y.

PATCH-APPLYING MECHANISM FOR WINDOW ENVELOPES.

Application filed December 3, 1821. Serial No. 519,723. To (ZZZ whom it may concern: 5 of Figure d looking in the direction of Be it known that I, CARL (l. EKVALL, a the arrows and also showing the blankcitizen of the United States, and a resident creasing plate and the folding bed. of the city of New York, borough of Brook- Figure is a view of the under side of the 5 lyn, county of Kings, and State of New creasing plunger and the patch carrier.

York have invented a certain and useful Figure '7 is a plan view of an envelope Improvement in Patch-Applying Mecha-- blank, and nism tor Window Envelopes, of which the Figures 8, 9, l0 and 11 are diagrammatic following is a specification. views showing the method oi operation of This invention relates to a machine for the creasing plunger and patch-applying manufacturing the well known type of enmember. velope known as the outlook or window Throughout the various views of the envelope, wherein an opening is formed in drawing, similar reference characters desig the body of the envelope blank and a strip nate similar parts.

of thin, transparent paper or like material In the embodiment of my invention as I is secured over the opening so that the adhave shown it herein, 1 have not embodied dress, which isplaced on the enclosure in therein many features of construction pesuch a manner as to register with the openculiar to machines for making envelopes, ing, can readily be seen through the transthey are well understood and need no speparent strip placed over the opening. ciiic description here for the purpose of This machine relates to the means for apmaking my invention clear. plying the thin transparent strips to the A pile of blanks indicated at 1 in Figure ellVQlOpe blanks and over the opening there- 1 placed upon a suitable support 2. in and the object of this invention is to Above this is a trame 3 provided with bearsimplify the mechanism for applying said ings iin which a rod 5 is vertically restrips and to produce a patch-applying ciprocated. This rod 5 is vertically recipromechanismwhich will work with great cated by a series of levers, the inner lever speed and to eliminate various objection 6 being tulcrumed to an upright portion 7 able features found in present machines of the frame and the opposite end of said my this character. lever 6 is pivotally connected to a link 8 These and other objects are accomplished secured to the rod 5 by means of a clamp S). 5

by my invention, a more particular de- Mechanism is secured to the levers operscription of which will appear below. ated by a cam or other desired means (not Reference is to be had to the accompanyshown) for moving the levers so as to give ing drawing forming part hereof in whichthe rod 5 vertical reciprocation,

Figure 1 is a side elevation of the portion The rod 5 carries a head 10. To this head or my improved machine for gumming the are pendantly secured three gumming dies, envelope blanks, and also showing the ll, 12 and 13. These dies are each conplunger mechanism and patch carrier, por-- formed in shape to the line of gum which a ti 5 of the same being shown in section. is to be applied to the blank and the lower ure 2 is'a plan view of the machine, edges of each of these dies are provii'led g5 portions oi the same being shown in section. with rubber strips 14: so as to give an even 1 g, 3 is a view of the portions of the impression of the gum on the blank. The machine used for removing patches from the dies 11 and 1.3 are employed for the purposev 45 pile and transporting the same successively of applying the gum to the upper and lower to the patch carrier which applies them to flaps oi the envelope blanks and the die 12 the envelope blanks. is so shaped that it will apply the gum Figure 4 is a plan view of the blankaround the opening 15 previously formed in creasing plunger and the patch carrier, the blank such shown in Figure 7.

' parts of the same being shown in section, Summing rollers 16 which are moved back the section being taken on the line 66 of and forward below the gumming dies to ap i i' urc 5 looking in the direction of the ply gum thereto, are mounted on a shaft arrows. 17 located underneath the gumming dies 11 Figure 5 is a sectional view on the line '12 and 13, the shaft 17 being supported to rotate in bearings 18 which hearings are arranged to slide on the rods 19. The gumming rollers 16 are drawn back and forth below the dies by suitable cam mechanism, connected to the shaft 17 by the arms 98 and links 99.

Located below the gumming dies 11, 12 and 13 and also below the gumming rollers 16 is a stripper plate 21 shown in plan in Figure 2. This plate is provided with apertures 22 suitably formed and conforming to the shape of the gumming dies, The under surface of the stripper plate is pro vided, adj acentto the edges of the apertures, with the stripper flanges 23 which aid in the stripping or removal of the gummed blanks from the gumming dies 11, 12 and 13. These dies 11, 12 and 13 on their downward movement pass through the apertures 22 in the stripper plate 21 and place gum on the edges of the flaps 24: and 25 of the envelope blank and adjacent the edges of the opening 15 in the blank as shown in F igure 7.

The blank adheres to these

dies

11, 12 and 13 and is carried upward on the return or upward movement of said dies and on such upwardmovement the blank is brought into contact with the stripper plate 21 which arrests its further upward movement and frees it from the gumming dies. The flanges 23 act as knife edges to more effectively produce this separation. As the blank is stripped from the gumming dies, it drops down upon a carrier. This carrier consists of two arms 26 having at their ends gripping hooks 27. These arms which form the blank carrier for carrying the gummed blank, are adapted to slide or reciprocate in guide ways 28 formed in arms 29 on a plate 30 which latter plate constitutes the upper horizontal portion of the frame known as the blank-creasing frame. The arms 26 are connected to ether bv a rod 31 which b in turn carries a link 32 and the link 32 is connected by a lever 33 to suitable cam mechanism adapted to glve the arms 26 a re ciprocating movement to carry the gummedblank to a position to be creased and receive the application of the patch as will be hereinafter set forth.v

The horizontal plate 30 is provided with an aperture 34; through which blanks arc thrust by a creasing plunger, This aperture is bounded by front and rear cross plates and by two sides plates 36.

The frame 3 is provided with guides 37 which guides carry a rod 38. This rod 38 is given an up and down or reciprocating movement properly timed with. respect to the reciprocating movements of the rod 5 (Figure 1) and the movements of the car rier frame formed of the arms 26, to the end that the movement of the envelope blank from the completion of the gumming operation to the inception of the folding operation will be continuous and the application of the patch to the blank will )s had without any interruption of that movement.

The rod 38 carries a projection 39 to which is pivoted a link 40, said link being pivoted to a lever 41 leading'to an appropriate part of the machine which, through its operationv will raise and lower the rod 38 in synchronism with the other movements heretofore described.

Secured to the lower end of the rod 38 the creasing plunger 13. The plunger l -3, which forms part of the blank-creasing mechanism, shown in section in Figures 8 to 11 inclusive which figures show the various steps in the folding and patch-applyingoperation. l

A plan view of the plunger is shown in Figure at. The plunger consists of a fiat rectangular plate secured to the lower end of the rod 38 in boss at which is secured to the plunger by screws 45. The plunger is provided on its under face with shallow elongated recess 16 which extends longitudinally of the plunger. The plunger is also provid ;l with an opening 457 extending throughit, and through this opening the patch-applying member 48 is adapted to be moved after it has applied a patch as will be hereinafter set forth.

The patch-ap iilying' member i8 acts as a patch carrier for single successive patches and transports the same to the point where they are applied, as will be set forth herein.- after. The patch-applying member consists of a hollow plate having an interior chamber 50 and a plurality of ports 51 leading from said chamber to the under face of the patch-applying member. The patch applying member 18 corresponds in outline to the opening; 1 in the creasing plunger so that the patch-applying member can lie in said openingduringvthe application of the patch to the blank, and is movable therethrough after the application of the patch. it 52 is shown an integral lateral extension on the patch-applying member and on said extension a boss 53in which is secured tubular rod 5 1 which extends upwardly and is movable through the guides 37in the frame 3; In order to reciprocate the patchapplying member, the tubular rod 54 is connected to a link '35. which is pivotally con nected-to an arm 56 on a bell crank lever pivoted on a shaft 57 secured on the machine. The other arm 58 of thebell-cranlr lever is connected at its end to a rod 59 which extends to suitable cam mechanism which acts, through the medium of the mechanism just described, to vertically reciprocate the patch-applying member.

The rod 54: being tubular provides a con- 'tinuous air-passage 60 through which suction is exerted, said suction being caused by a pump or the like (not shown) which is connected to the rod 54 by a flexible tube. a portion or" which is disclosed at 61 in Figure 1 such connection in no we 7 interfering with the reciprocating movement of the patchapplying member.

The initial or raised position of the patchapplying member 48 and the creasing plunger is disclosed in Figure l which indicates the relation of the parts at their highest point of ascent wit-h the patclnapplying member extending below the creasing plunger and in position to receive and retain a patch on its under face by suction exerted through it.

. The means for supplying successive single patches to the patch-applying member will now be described.

At 62 is the p tch table or support which receives and holds a pile 63 of the thin, transparent patches within a cage 64 secured on the table. The cage 64 is provided with an upright 65 in which is pivoted a tubular picker rod 66 having a laterally bent end 67 provided with a pair of downwardly extending nipples 68 through which suction is exerted to lift successive patches from the pile 63. As shown in Figure 2 the laterally bent end of the picker 66 extends crosswise of the patches and is located adjacent one end of the same and near a patch gripper composed of

parts

73 and 74 which supply the successive patches to the patch-applying member 48.

The rear end of the picker 66 is supported on a grooved pulley 69 which is slidably mounted on a shaft 70. This shaft is secured to and extends from one end of a rocker arm =71, which rocker arm is pivoted in a bracket 72 secured to a part of the machine.

The outer end of the rocker arm is connected to suitable operating mechanism to the end that when said outer end of the rocker arm is moved, the lateral end 67 of the picker 66 will be tilted downward to rest the uppermost patch in the pile. Through suitable mechanism not shown suction is exerted through the tubular picker 66 to cause the uppermost patch to adhere the nipples 68 on its lateral end 67. The is-fleral end of the tubular picker 66 is then titted and it raises one end of the uppernicst patch 86 as disclosed in Figure 3. when said patch is grasped by a pair of gripping ringers "[3 and 74 and brought to the patchapply g member 48 for application to a blank.

flu its way to the patch-applying member $18 the patch is aligned by movement through pairs of aligning guides 75. The ippers are mounted on an arm 76 which secured on a sleeve 77 slidable on a rod The extending across the machine.

.meuns for sliding said sleeve backward and the forward on the rod 78 comprisesa link 9 connected at its end to a lever actuated by suitable cam mechanism not shown.

The opening and closing of the gri pers T3 and 74 is effected by means of a tripper member 81 having a roller 82 mounted on its free end, and a dog 83. At 84 is a stop secured on a bracket 85, and said stop is adapted to contact with the dog 83 to per mit the grippers to close on a lifted patch 86, such closing of the gripper-s being effected by spring 87 which brings the movable gripper 73 down on the stationary gripper '74 so that they grip the patch 86. between them. The grippers which are then holding the patch move across the machine until they reach a point with the patch held below the patch-applying member 48. Suction being exert-ed through, the patch-applying member causes the patch to adhere to the under surface of said member and the grippers open leaving the patch on the under surface of said patch applying member and ready for application to the blank. The opening of the grippers to release the patch at this point is effected by means of a projection 88 which strikes against the roller 82 and separates the grippers. The open grippers are then carried back to receive a new patch and the creasing plunger 43 and patch-applying member with its attached patch descend to apply the patch to the blank as will now be described.

ln the drawings Figures 8 to 11 indicate the various steps in the operation of applying the patch to the blank and the positions of the creasing plunger and patch-applying member. In Figure 8 a patch 86 is shown attached to the patch-applying member 48 by suction exerted through said patch-applying member. A gummed blank 89 is shown resting upon the creasing plate and the creasing plunger is descending.

in Figure 9 the creasing plunger 43 is shown contacting with the blank 89 and beginning to force the same through the opening 34 in the creasing plate to crease the blank. At this point it will be seen that patch-applying member is located ithin the opening 47 in the creasing plunger and said patch-applying member and creasing plunger are moving downward at the same speed. The patch-applying membcr holds: its attached patch 86 within the recess 46 in said plunger and away from the surface of the blank. The creasing plunger 4 and the patch-applying member 48 continue to move downward together at a uniform rate of speed, the creasing plunger forcing the blank 89 down towards the folding bed 90 with the patch-applying member at no time coming into contact with the blank and holding its attached patch 86 away from the same. As the blank nears the folding bed" 90 and reaches the dis closed position in Figure 10, the current of air in the patch-applying member -i8 is reversed and forms a blast of air which blows the patch 86 off from the under face of the patch-applying member and onto the blank. This constitutes the lowest point of descent of the patch-applying member 8 and it then begins its upward movement vhilethe creasing plunger ib continues downward forcing the blank with its attached patch down on the folding bed 90. Thereafter the creasing plunger moves upward causing the patch-applying member to pass through its opening-e7 so that the creasing plunger 43 removes to the initial position of the device disclosed in Figures 1 and 8 with the patch-applying member 4.8 in position to receive a new patch. The patchedblank remains on the folding bed where it is acted upon by a mechanism which} folds down its flaps and produces the con'ipleted envelope. This cycle of operation is repeated as long as the machine is in operation.

It will be noted that the patch applying member at no time contacts with the blank and consequently does not press the patch 86 upon the blank as is done in many of the present forms of machine but rather blows the same thereon by an air blast. This form of machine is speedy in operation, prevents the patches from sticking to the patch-applying member and as the patchipplyin'g member is at no time brought into contact with the blank, the possibility of gum reaching the under face of the patch-applying member is avoided.

From the foregoing it is obvious that my invention is not to be restricted to the exact embodiment shown but is broad enough to cover all structures coming within the scope of the annexed claims.

That I claim is:

1. in a machine of the class described, a blankcreasing plate,'a folding bed, an apertured creasing plunger adapted to move a blank through said creasing plate down to the folding bed, a patch-applying member adapted to receive a.- patch below the creasing plunger when said plunger is in its raised position, means for moving said patch-applying member downward while the same is located in the aperture in the creasing plunger, means for causing a patch to be applied to a blank while the same is beingmoved by the creasing plunger and means for terminating the movement of the patch applying'member at a distance from the folding bed, while saidclreasing plunger thereafter continues its movement of the patch blank to the folding bed.

2. In amachine of the class described, a blank creasing plate, a folding bed, an apertured creasing plunger, an independently lama movable patch-applying member adapted to receive a patch at a point below the creasing plunger when said plunger is in its raised position, means for moving said plun ger and patch applying member towards the Iolding bed with the patch-applying mem I the patched blank down to the fo'ldingbed.

3. In a machine of the class described, a reciprocating plungerhaving' an opening, a creasing plate through which a blank forced by said plunger, a bed plate below said creasing plunger, means for reciprocating said plunger to cause the same to force a blank through the creasingplate and down to the bed plate and a patch-applying member adapted to receive a patch at, a point below the creasing plunger and adapted to lie within the opening; the creasing plunger and apply a patch to the blank at a point intermediate of the creasing plate andthe bed plate. 7 V j 41:. In a machine of the class described, a reci 'irocating blank-creasing plunger, a base to which a blank is forced by the plunger said plunger having an opening extending through it, a. reciprocating patch-applying member adapted to receive a patch below the plunger and lie'within V said opening during downward movement of said'plunger and the patch-applying member and adapted to apply a patch to a blank during such downward movement and before the blank reaches the base.

5. In a machine of the class described, a creasing plate, a movable plunger having a recess, an opening passing through that portion of the plunger in which the recess located and a patch applying member adapted to receive successive 3t1llChS at a point below the plungerand fit within said opening and hold a patch within said recess.

6. In machine of the class described,

the patch-applying member to apply apatch V to a blank at a point of termination of downward movement of the patch-applying mem her while said blank is being moved downwardly towards the bed-plate.

7 In a. machine of the class described a creasing plate and a bed plate, a creasing plunger for forcing a blank" through the creasing plate and towards the bed-glate, said creasing plunger having an opening,

and a patch-applying member movable through said opening and adapted to lie with the opening during movement of the blank towards the bed-plate and adapted. to apply a patch during such movement, said patirh-zqiplying member terminating its movement toward the bed plate at a distance from said bed plate.

8. In a machine of the class described an apertured plunger adapted to force an envelope blanl: down to folding means and an independently movable patch-applying member having its limit of downward movement terminating at a point above and away from said folding means and adapted to lie within said plunger and apply a patch to the blank during its movement towards the folding means.

Signed at the city, county and State of New York this 1st day of December, 1921.

CARL O. EKVALL.