US549110A - crowell - Google Patents

Description

(No Model.) 14 Sheets-Sheet 1.

L. c. GROWELL. WRAPPING AND FOLDING MACHINE No. 549,110. I Patented Nov. 5, 1895.

(No Model.) 14 sh ets-3115a 2. L. C. GROWBLL. WRAPPING AND FOLDING MAGHINE. No; 549,110. Patented Nov. 5, 1895'.

14 Sheets-Sheet 3 L. c; GROWE-LL.

WRAPPING AND FOLDING MAGHINE.

Elm 549,110 Patented Nov. 5', 1895.

yzteedi 1711967307 (No Model.) 14 Sheets-Sheet 4.

L. o". GROWBLL. WRAPPING AND FOLDING MAGHINE.

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ANDREW BFRMMM.PHUTO-UHWWASHINGTONJYC I (No Model.) 14 shets-slmet 6.

' L U CROWELL WRAPPING AND FOLDING MACHINE- No. 549,110. PatentedNov. 5, 1895.

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L O CROWELL WRAPPING AND FOLDING MACHINE. N Patented N016, 1895.-

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L. O.- GROWELL. WRAPPING AND FOLDING MAGHINB.

No. 549,110. Patented Nov. 5, 1895 (Nq Model.)

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Patented Nov. 5, 1895.

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Nol 549,110. Patented Nov. 5, 1895.

ANDREW IGRANAM, FHUTO-LITHQWASNINGTON D C (No Model.) 14 sheets-sheep 11. I

L. c. GROWELL. WRAPPING AND FOLDING MACHINE.

No. 549,110. Patented Nov. 5; 1895.

m m m ANDREW EGRAHAMJHOTOUTHOWABHINGTO ",DZQ

14 Shets- Sheet 12.

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L 0 CROWELL WRAPPING AND FOLDING MAGHINB. No. 549,110.

Patented Nov. 5, 1895.

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No. 549,110. Patented Nov. 5,-1895 v fave/J17:

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L 0. GROWELL. WRAPPING AND FOLDING MACHINE.

Nd. 549,110. Paizented Nov. 5, 1895.

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- UNITED STATES PATE T- OFFICE.

LUTHER OROYVELL, OF BROOKLYN, ASSIGNOR, BY DIRECT AND MESNE ASSIGNMENTS, TO ROBERT HOE, THEODORE H. MEAD, AND CHARLES \V. CARPENTER, OF- NEW YORK, Y.

WRAPPING AND FOLDING MACHINE.

SPECIFICATION forming part of Letters Patent No. 549,110, dated November 5, 1895.

Application filed May 12, 1893. Serial No. 474,025. (lilo model.)

To all whom it may concern:

Be it known that I, LUTHER C. CRoWELL, a citizen of the United States, residing at Brooklyn, county of Kings, and State of New York, have invented certain new and useful Improvements in Trapping and Folding Machines, fully described and represented in the following specification and the accompanying drawings, forming a part of the same.

The object of the present invention is to provide an improved foldingonachine, and especially to provide an impoved machine for folding and wrapping newspapers and other publications. This object is attained by the use of a plurality of feeding devices and a plurality of carriers, one mounted between each two successive feeding devices, these carriers being arranged to receive the sheet and guide it into proper position to be folded, and, when the article has been fed partially past the folding-plate of the carrier, to move so as to carry the folding-plate from the feeding device from which the article has been received to the next feeding device over the surface of an abutment or wiper, and thus todouble or fold the sheet against the abutment or wiper and transfer the fold-line of the sheet to the next feeding device. The number of feeding devices and carriers may be varied in accordance with the number of operations upon the sheet desired, the last carrier in a wrap ping-machine being arranged to double or fold over the'wrapper just at the edge of the folded sheet, so that the pasted end of the wrapper is pressed down and secured by the last feeding device to which this carrier trans fers it. It is evident that the construction of machines operating on this principle may be varied widely, that the feeding devices, carriers, and-abutment may be of different forms and their arrangement and movement be varied within wide limits. It is preferable however, to use an abutment moving in the direction of movement of the carriers in folding the paper, and a simple and efficient machine is produced by arranging a series of feeding devices, preferably feeding-rolls, about the surface of a rotating cylinder which coacts with the rolls to advance the paper and at the same time forms the abutment against S which the sheet is folded as the carriers are moved over and with the cylinder. The carriers combined with this cylinder and feeding devices consist, preferably, of two parallel plates or sets of fingers mounted, respectively, between the successive rolls, and these carriers are preferably mounted to swing in opposite directions over the cylinders to fold the sheet and return to normal position,

although the carriers may rotate and be returned to position on a full rotation. It is desirable that the folding-plate of the car- It is desirable, also, that the carrier should have, in addition to the movement along the surface of the cylinder, a movement toward the feeding-roll to which the sheet is transferred, so as to carry the fold-line of the doubled sheet positively into position to be gripped by the cylinder and said feedingroll, and on its return should be moved toward the feeding-roll from which the sheet is received, so as to assure the proper reception of the sheet by the positioningof the carrier close to the roll. These results are secured, preferably, by mounting the carriers pivotally in swinging arms, so that the carriers have a movement on their own axis, by which the folding-plates are swung over the cylinder and are carried by the arms to and from the surface of the cylinder, so as to be carried outward from the cylinder sufficiently to permit the sheet to be folded between the carrier and cylinder, and are then :carried inward and forward again, so as to deliver the fold-line of the sheet positively into the grip of the cylinder and roll to which it is transferred.

The rolls may be mounted rigidly if the maelevation.

relativelyto the cylinder being adjusted in accordance with the number of plies of the sheet as it is advanced by each roll; but I prefer to use spring-pressed rolls, thus enabling the machine to be used with sheets of different thickness.

In order to secure certainty in the reception and delivery of the sheet by the carrier the feeding-rolls and cylinder are preferably formed of disks or provided with circumferential grooves, and the carrier formed to enter between the disks or into the grooves of the rolls in receiving and delivering a sheet, and the guidingportion of the carrier is preferably made to enter the cylinder in receiving a sheet, so that the sheet is fed into the carrier without risk of abutting against the edges of the carrier, and'the fold-line is carried farther within the grip of the cylinder and the next feeding-roll than would otherwise be possible. This folding and wrapping mechanism may be fed by hand, or any suitable feeding devices for automatically advanein g papers and wrappers to the wrapping mechanism in proper time, together or independently of each other, may be combined therewith. The wrapper may previously be cut to the desired size and fed to the folding and wrapping mechanism as sheets or fed from the web and severed in the machine. This folding and wrapping mechanism may be combined with a printing-press, so that the papers may be printed, folded, and wrapped by a single machine, suitable wrapper, feeding, and. pasting devices being added, the wrapping mechanism herein shown being of suflicient capacity to be applicable to rapid web-printing presses.

In the accompanying drawings, forming a part of this specification, there is shown a complete folding and wrapping machine of the general construction above described, which will be found an efficient and convenient embodiment of the present invention, and certain modifications thereof and a detailed description of the same will be given, and the features forming the invention specifically pointed out in the claims.

In the drawings, Figure 1 is a side elevation of the gear side of the machine. 2 is a sectional elevation taken inside the frame on the same side of the machine. Fig. 3 is a side elevation of the opposite side of the machine. Fig. 4 is a plan view. Fig. 5

is a rear end elevation with the pasting de- Figs. 6, 7, and 8 are dia vices removed. grammatic sectional elevations taken inside the frame on the same side of the machine 1 as Fig. 3, showing the parts in different positions during the operation of folding and wrapping a sheet. Figs. 9 to 12 show a modified form of machine. Fig. 9 is a partial side Fig. 10 is a vertical section on the line 10 of Fig. 11. Fig. 11 is a plan view, and Fig. 12 a rear end elevation with the pasting devices removed. Figs. 13 to 16 show a11- other modification. Fig. 13 is a partial side Fig. j

elevation. Fig. 14 is a planview. Fig. 15 is a cross-section on the line 15 of Fig. 14. Fig. 16 is a central longitudinal section of the cylinder.

Referring to said drawings, the frame of the machine may be of any suitable construction for supporting the operating parts. As shown, it consists simply of the vertical side frames A B. In these frames is mounted centrally of the machine the main shaft 0, which carries a large cylinder D, this cylinder being preferably formed, as shown, of a series of disks mounted upon the shaft 0 at suitable distances apart to form grooves of the required width between the disks, although it will be understood that a grooved continuous cylinder may be used,if preferred.

About the cylinder D are arranged a plurality of feeding-rolls E, these rolls being arranged at considerable distances apart, according to the length of the paper to be doubled or folded between them, and preferably being formed of disks set at suitable distances apart, as shown, or provided with grooves in some other manner. The cylinder D maybe of any suitable size and any number of these feeding-rolls E be used in accordance with the number of folds of the sheet desired,

There are shown, however, five of these rolls making a construction by which a sheet may be thrice folded or twice folded and wrapped. These rolls E may be mounted rigidly if the machine is to be used only with sheets of the same thickness; but it is preferable to make the rolls spring-pressed, in order to accommodate sheets of diiferent thicknesses, and moreover this construction is preferable even with sheets of the same thickness. Any suitable construction may be used for this purpose; but there is shown a common arrangement in which the shafts 10 of the rolls E are mounted in bearings 11., having stems 12, supported in hollow studs 1-3 on the frame, the bearings being spring-pressed to force the rolls toward the cylinder by coiled springs 14 within said studs.

Between the rolls E are mounted carriers to Z) c, a carrier between each two feedingrolls, except that space is left between two of the rolls previous to the last fold for applying paste to the wrapper. If the pasting mechanism be omitted or other pasting devices employed, it will be understood that one of the rolls E may be omitted. These carriers consist in the form shown of plates 15 16, preferably of thin sheet metal, mounted parallel with each other and supported by rods, these rods 17 being pivotally mounted in swinging arms 18, was to rock in said arms while being carried by the arms to and from the cylinder. For actuating these carriers the following means are preferably used: As shown in these figures, the rod 17 at one end of the carrier has an arm 19, pivotally connected to a crank-arm 20, carried by a rock- Shaft 21 mounted in the frame of the ma chine. This rock-shaft 21 carries also a sec ITO ond crank-arm consisting of a segmental gear 22, which meshes with a segmental gear 23, carried by a sleeve 24: mounted on a stud in the frame. This sleeve 24 carries a crankarm 25 having a bowl. The construction of these parts is the same for each of the carriers a b c, and the bowls on their respective operating crank-arms 25 run in cam-grooves d e f, formed in two cam-disks F G, carried by the shaft C at opposite sides of the machine, the two cam-grooves e f being shown as formed in the cam-disk G, so that carrier a is operated from one side of the machine and carriers 1) c from the other side; but it will be understood that this arrangement is only for convenience. These cams may be mounted in fixed positions relatively to the shaft C, if it be desired to operate on but one length of sheet and to make the folds always on the same line; but it is preferable to make the cams adjustable on the shafts, as it will be seen that by simply shifting the position of any cam the line of the sheet upon which the fold will be formed may be varied, so that a single machine may be used for folding sheets of widely-different lengths and for folding sheets on different lines, so as to produce av variety of products. In the construction shown, the cams F G are carried by sleeves loose on shaft 0 and are secured in their adjusted positions thereon by means of setscrews 26.

The carrier a is shown as extended above the rods 17, by which it is carried so as to support the leading edge of the sheet while it is fed into the carrier, and such support is desirable when the sheet consists of only one or two plies; but with sheets of considerable thickness and rigidity this may be found unnecessary, and this carrier may be formed in the same way as carriers 1) c in the construction shown, terminating at or just above the rods 17. If the carriers are formed of continuous plates 15 16, as shown in the construction now being described, they are both cut away at their inner edges, so as to enter the grooves in rolls E in receiving and delivering the sheet, and the plate 16 is preferably cut away so as to form fingers 1, entering the cylinder D in receiving a sheet, thus securing greater certainty of operation and rendering a high speed possible.

The plate 15, which forms the folding plate by which the sheet is folded against the surface of the cylinder, should be of considerable extent, so as to secure proper folding by engaging the fold-line through a considerable portion of the width of the sheet, and this plate, of course, should not project within the surface of cylinder D. The plate 16, however, which forms the guide for the sheet, may be formed of a series of narrow fingers, but little strength being required, and, as stated above, they preferably project slightly inside the surface of the cylinder in receiving the sheet. It may be found preferable to make guide 10 of such a series of fingers, as

this leaves no edge outside the cylinder to be engaged by the sheet as it is fed forward into the carrier.

The construction thus far described may be used as a folding-machine, or papers and wrappers may be fed thereto by hand and the machine used as a hand-fed folding and wrapping machine, the paste being applied by hand or by any suitable devices. The machine shown, however, is adapted for use as a high-speed automatic folding and wrapping machine, the sheets or papers being repre sented as taken from a pair of feed-belts, which may be the delivery of a printing-press or to which the sheets or papers may be fed as sheets from a pile. It will be understood, however, that the invention does not depend upon any special form of paper or wrapperfeeding devices, but that these may be varied as desired. 3

Any suitable form of pasting devices may i be used, and the paste applied at any desired point and either to the loose flap of the wrapper or to the layer of wrapper upon the paper. It is desirable, however, that the paste should be applied as late as possible, and there are shown devices for applying the paste to the wrapper just prior to the operation of the last carrier by which the flap of the wrapper is turned over for pasting. the construction shown the sheets or papers are fed in by the belts g, extended around belt-pulleys 27, placed adjacent to the first feeding-roll E, the sheet being fed in by said belts over guides 28.

To secure the proper timing of the feed of the sheet relatively to the operation of the carrier a any suitable means may be provided; but there are shown stops 2, carried by arockshaft 3, mounted below said belts and actuated by a crank-arm 29, carrying a bowl, which runs upon cam-plates h, carried by the cylinder D at one end, so as to throw the stops outward into the path of the paper as it is advanced by the belts g and hold it until the proper time when one of the cams it passes the bowl on arm 29 and releases the rockshaft, which is then rocked by spring 30 on the shaft to carry the stops below the belts and release the sheet. It will be understood than the cams h are so timed relatively to the cam (l, by which the carrier 0 is operated, that the sheet is released by the stops 2 just at the proper time to reach the carrier a when it is in the position shown in Figs. 6 and 8. These cams h are preferably made adjustable by means of slots and set-nuts 4, so as to secure the accurate timing of the sheet, and by this adjustment, also, the machine may be capacitated to act on sheets of different lengths and to fold on different lines without adjustment of the cams d e f, as it is apparent that the fold-line of the sheet will depend upon the distance to which it is fed within the carrier a, and this depends upon IIO release the sheet by the cam a.

The wrapper is fed from a wrapper-roll by a pair of feed-rolls and received from said rolls bya pair of perforating-rolls 31, by which the web is perforated on the line at which the wrapper is to be severed, the perforated wrapper then being advanced between guides 32 by feed-belts 0?, carried by pulleys 34, the pulleys 34 being placed closely adjacent to the cylinder D. The leading end of the wrapper-web is thus advanced between the cylinder D and a roll 35, preferably spring-pressed, and shown as mounted for this purpose in the same manner as the rolls E, previously described. This roll 35 retates and the cylinder advances the wrapper at a speed accelerated over that of the tapes 2, and a wrapper is thus snapped off on the line of perforations and advanced forward about the cylinder to the first roll E and carrier a, where it is associated with the paper.

The pasting devices are placed atthe opposite side of the cylinder D from the point at which the wrapper and paper are fed in and just behind the last carrier. As shown, two of the rolls E are separated a sufficient distance to accommodate the pasting devices, and the paper, which at this time has been folded down to the size of the final product, is advanced between the rolls E by tapes 7a, extending between said rolls and coacting with the cylinder D. The paste is applied by means of a rotating paster I constructed to apply paste at the desired point and carried by arms 36 on a shaft 37, mounted in the frame of the machine, the paster being shown as cut away so as to accommodate the tapes 7;. The paste is supplied to the paster I by a fountain roll 38 rotating in the usual fountain 39.

The operative parts of the machine are all actuated from the main shaft 0, as follows: The shaft C carries outside the frame A a gear 40 of the same size as the cylinder, which meshes directly with gears 41 on the shafts 10 of the rolls Eand 011 the shaft of the wrapper feeding and breakingroll 35, so that these rolls are driven by a direct gear connection with the shaft 0 and at the same surface speed as the cylinder D. The teeth of the gears 40 41 are made of sufficient length, so as to inter-mesh and drive the rolls E, although they may yield against the tension of the springs 14 to accommodate the folded paper. The tapes g are driven from the tape-rolls or pulleys 27, which are driven from the gear 40 by an intermediate 42, meshing with one of the gears 43, by which the shafts of said rolls are geared together. The wrapper-feeding mechanism is driven from the gear 40 at a lower rate of speed than the cylinder and rolls by a large intermediate 44, meshing wit-h the gear 40 and small gear 45 on the same shaft and intermediates 4!], connecting with small gear with gears 47, by which the perforating-rolls 31 are geared together. The feeding-rolls 30 are geared together by gears 48 and driven from one of the gears 47 by an intermediate 49, and the rolls 33 are likewise geared together by gears 50 and driven from the same gear 47 by intermediate 51. The shaft 37, carrying paster I, is driven directly from the gear 40 by a gear 52 on said shaft, and this gear 52 meshes with a gear 53 on the shaft of the fountain-roll 38. hile this system of gearing forms a very simple and efficient construction, it will be understood, however, that any other suitable means for driving the parts of the machine may be used.

The operation of the construction will be understood from the following brief description in connection with the drawings, referring especially to Figs. 2, 3, and 6 to 8.

In the position shown in Figs. 2, 3, and 6 a sheet has been advanced by the tapes g, the stops 2 having been lowered by the spring 30 on the release of the arm 29 by the cam 7L on the cylinderD, and the sheet has been fed into the carrier (1, which is just about to be actuated by the cam 61 to double the sheet against the surface of cylinder D and transfer the fold-line of the doubled sheet to the next roll E, the machine being illustrated as operating to fold a sheet twice on the middle linethat is, to form four plies of the original sheet and apply a wrapper thereto. The wrapper 1 has been broken from the perforated wrapperweb by the cylinder and roll 35 and advanced thereby to the roll E and within the carrier a on the under side of the sheet sufficiently to insure the wrapper being folded with and outside the paper. The cam (Z now acts upon the bowl on arm 25, so as to rock the segmental gear 23 and through the segmental gear 22 the shaft 21, so as to carry the crank-arm 20 on the axis of the carrier a forward in the direction of movement of the cylinder D, thus swinging the carrier a on its axis and in the same direction. At the same time the straightening out of the joint formed by the arms 20 19 carries the arms 18, on which the carrier a is mounted, away from the cylinder D, so as to withdraw the fingers 1 of the car rier out of the grooves in the cylinder D and raise the carrier from the cylinder sufliciently to enable the sheet to be doubled between the fingers and cylinder, while at the same time positively holding plate 16 of the carrier so close to the surface of the cylinder as to insure the accurate doubling or folding of the sheet. As the carrier is swung past the center of its path of oscillation and over the highest point of the cylinder-curve between the two rolls E, the continued movement of the arms 20 1.) past the. dead-center tends to shorten the length of the connection between the arms 18 and the fixed shaft 21, and thus the carrier is drawn downward. again toward the surface of the cylinder and at the same time, by the compound movement of swinging on its axis and moving bodily toward the cylinder, is carried forward positively and close to the surface of the cylinder, so as to advance the fold-line of the doubled sheet positively into the grip of the cylinder D and next roll E, the plate 15 entering the grooves in the roll, so as to carry the sheet as far as possible between them. The second carrier 1) is now in position to receive the sheet thus folded with the wrapper from the cylinder and roll E, to which the carrier at has delivered it, and the once-folded sheet is now fed into the carrier 1) with the wrapper overlapping the leading end and projecting behind the rear end. At the same time the rotation of the cylinder D has carried one of the cams h' into position to engage the bowl on the arm 29 and has thus raised the stops 2 into position to engage the head of the next sheet, so as to hold it until the proper moment to secure the desired feed of the sheet into the carrier a. This position of the parts is shown in Fig. 7. The carrier at is now returned to position by the action of the cam (1 upon the bowl on arm 25, reversing the movement of the carrier previously described. The stops 2 are lowered by the passage of the cam h beyond the bowl on arm 29 and another sheet and wrapper are fed forward to the carrier a for repeating the operation just described. The carrier b, which has received the sheet and wrapper from the roll E, to which it was delivered by the carrier (1, is now operated by the cam e in exactly the same manner as described in connection with the carrier 0. and the sheet doubled against the surface of cylinder D, and the fold-line of the sheet,- doubled or folded twice on the middle line, is transferred into the grip of cylinder D ,and the next roll E.

In Fig. 8 the parts are shown with the cylinder D and the roll E just receiving the twice folded sheet from the carrier 1). The wrapper now extends entirely about the sheet, with its leading end held between two layers of the same and its rear end projecting behind the sheet sufficiently to form the pasting-flap by which the wrapper is secured. The sheet in this form is now advanced by the tapes 1:; and cylinder D, and as it advances the paster 36 lays a line of paste upon the pasting-flap between the tapes It, just in the rear of the next roll E and the sheet, with the flap thus pasted, passes into the grip of the cylinder D and roll E and is advanced thereby to the third carrier c, as shown in connection with the second sheet in Fig. 6. The cam f, by which the carrier c is actuated, is timed so as to permit the sheet to be fed entirely within the carrier 0, so that, as the carrier is operated by the cam, as previously described in connection with the carrier a, the sheet is not doubled against the cylinder d, but only the flap of the wrapper y, the folding-plate 15 of the carrier 0 engaging the wrapper just behind the sheet. As this carrier is operated, therefore, the folded sheet is turned so as to lap the pasted wrapper-flap down upon the previous layer of wrapper upon the paper, and the sheet with the flap of the wrapper lapped over upon it is transferred between the cylinder D and the last roll E, so as to be advanced thereby carrier.

and the flap of the Wrapper pressed down and secured, the twice folded and wrapped paper thus being delivered from between the cylinder D and the last roll E, as shown in connection with the second paper in Fig. 7, the carrier 0 then being returned by the cam f into position to receive another sheet and wrapper, as shown in Fig. 8.

While the machine has been illustrated and described as folding a sheet midway of its length, it will be apparent from an inspection of the drawings that the sheet may readily be folded upon any other line, it being necessary only to time the carrier and sheet-feeding devices, so that the carrier is actuated at the proper time to fold the sheet on the desired line.

In folding and wrapping comparatively thick newspapers and pamphlets it is frequently desirable to fold at one-third of the length, so as to form a product consisting of three plies of the original sheet. It is difficult to form the second fold in such case with the common folding-blade and roll constructions of folding mechanism or with others acting in the same way, as there is nothing to hold the free edge of the first fold as the second fold is made; but it will be seen that the present invention provides a construction excellently adapted for this method of folding, as the two plies of the sheet formed by the first fold are positively held within the In fact, this method of folding may be found preferable with the machine shown, as it is necessary then to double or fold only a single ply of the original sheet at each folding operation. It will be seen, also, that the machine is very simple, and it will be found efficient, durable, and of very high capacity, so that the machine is of great utility not only as a folding and wrapping or wrapping :machine, but also as a folding-machine only, this utility being increased largely by the ease with which the machine may be adjusted,

so as to fold sheets of different lengths or to' fold sheets upon difierent lines. It will be seen, also, that this machine may readily be arranged so as to fold and wrap or to fold to different sizes, as desired. For instance, in the construction shown, the machine may readily be used as a folding-machine, folding three times, solely by throwing out the paster and timing the carrier 0, so as to form a third fold, or the carrier 0 may be thrown out of operation and the twice-folded sheet delivered finally by the tapes k, or the carrier 19 thrown out of operation and the once-folded sheet delivered by any suitable means.

It is obvious that many other arrangements of devices for securing the proper movement of the carriers may readily be devised, and while the construction previously described shows the preferred construction, efficient machines may be made with other arrangements. Thus in Figs. 9 to 12 I have shown'a modified construction in which the carriers are actuated to transferv the paper and returned to position for receiving the next paper by two sets of actuating devices moving cont1nuously in opposite directions. In this machine the general construction and arrangement is substantially the same as that previously described, and the same letters of reference will be applied to corresponding parts in the two constructions, the machine being described only so far as is necessary to explain the differences of construction. 111 this construction each one of the shafts 17, by which the carriers a Z) c are mounted in the swinging arms 18, is provided with an actuating crank -arm for swinging the carriers to transfer the sheets, these crankarms being lettered, respectively, a l) c, with corresponding crank-arms for returning the carriers to position, lettered, respectively, a Z1 0 and corresponding stop-arms lettered, respectively, a Z2 0 these arms consisting, in the form shown, of narrow plates of metal forked at their outer ends, so as to properly engage pins by which they are actuated or stopped in proper position. The actuating-arms a b c are engaged at the proper time to actuate the carriers to transfer the sheet by pins a b 0 corresponding to the respective carriers actuated thereby. The arms a Z1 0 are engaged at the proper time to return the carriers to position for receivin g the sheet by pins ac? 1), corresponding to the respective carriers actuated thereby, the pins ac actuating both the carriers a and c and the pin b actuating only the carrier 1?, and for each carrier are provided two stops corresponding to the two positions of the carrier and engaging the stop-arms (L3 b c in their two positions, so as to hold the carriers accurately in position while the sheet is being fed in and out of the same and insuring the proper position of the carriers for the action of the actuating and return arms and pins, these pairs of stop-pins being lettered respectively, a Z) 0, corresponding to the different carriers with which they eoact. Each of the shafts 17 of the carriers a b c is provided with a spring 53, coiled thereon and secured to the frame and shaft, so that the rotation of the shaft 17 in folding and trans ferring the sheet puts the spring under ten- S1011.

It will be seen that there are two sets of both the actuating and return pins placed at exactly opposite sides of the machine. These two sets are used only because the machine is adapted to fold and wrap two papers at each revolution of the cylinder D. If but one paper were to be wrapped at each rotation, of course one set of each of these pins could be omitted, and it is apparent that the construction might readily be modified so as to handle more papers at each rotation of the cylinder.

It is necessary to move the actuating and return pins above described in opposite directions and time them properly, so as to secure the proper movement of the carriers.

The means by which this result is attained are as follows: A disk ll is secured on the shaft C so as to move with the cylinder D, and from the inner'side of this disk the projecting pins af 1)" 0 project, these pins being of different lengths, and each, except the shorter one, being bent, as shown, or other wise constructed so as to engage none of the actuating-arms except the one it is adapted to operate, these actuating-arms a I) a being offset or arranged at different distances from the disk H to secure thisresult. The stoparms a b c are at the same ends of the shafts 17 as the actuating-arms a b c and outside the latter and the disk II, and the stops rt 1) a project inwardly from the frame 13, or, as shown, from fixed brackets 51, carried by the frame 13. A disk K is mounted loosely on shaft C just inside the frame A at the opposite side of the machine from the disk II, and the return-pins ac 1') project inwardly from the disk, the pins if being bent, as shown, or otherwise constructed to pass the arms (I (.1 without engaging them.

The cylinder D and disks H K are actuated so as to secure the movement of the disk K in the opposite direction from the cylinder D and disk H by the following means: A stud 55, mounted in the frame A, carries two gears 56 57, respectively outside and inside the frame A, the gear 56 engaging gear 4:0 on shaft 0, thus driving the stud 55 in the same direction as the shaft 0. The disk K is provided with a gear 58 of the same size as gear 40, and this gear and the disk K are driven from gear 57 on stud 55 through an intermediate 59, so that the movement of the disk K is reversed from the shaft C; but the speed of the disks 11 K and cylinder D is the same. In this construction the rolls E may be driven directly from the gear 4:0,as in the construction previously described; but in connection with the gear 58 it is possible without complicated construction to provide for a greater move ment of the rolls E from the surface of the cylinder D without interfering with the driving of the rolls E by driving these rolls from gear 58 through intermediates 60 and gears 61 on the shafts of the rolls, the intermediates and shafts being so mounted that as the spring-pressed rolls E move away from the cylinder D the movement is in such a line as to retain the gears (50 61 in mesh.

The operation of the construction will be understood from a brief description in connection with the description of the operation previously given in connection with Figs. 1 to 8. The position shown is the same as that shown in Figs. 2, 3, and 6, in which a paper and wrapper have been fed into carrier a and this carrier is just about to be actuated to double the sheet against the surface of cylinder D and transfer the fold-line of the doubled paper to the next roll E, the carriers b 0 also being in position to receive a paper. In this position each one of the stoparms a b c is in engagement with its respect-

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