US1033247A

US1033247A - Slitting and folding machine.

Info

Publication number: US1033247A
Application number: US47503009A
Authority: US
Inventors: Harry I Illingworth
Original assignee: Boston Machine Works Co
Current assignee: Boston Machine Works Co
Priority date: 1909-01-29
Filing date: 1909-01-29
Publication date: 1912-07-23
Anticipated expiration: 1929-07-23

Description

H; I. ILLINGWORTH. SLITTING AND FOLDING MAGHIN` APPLICATION HLBDJAN. 29, 1909.

1,033,247. Patented July 23, 1912.

SHEETS-SHEET 1.

H. I. ILLINGWORTH.. SLITTING AND FOLDING MAGHINE.-

v APPLICATION FILED JAN. 29, 1909r 1,033,247, f Patented July 23, 1912.

6 SHEETS-SHEET 2.

H. 1'. ILLINGWORTH.

SLITTING AND FOLDING MACHINE.

APPLIGATION FILED 11111.29, 1909.

1,033,247. Patented July 23, 1912.

6 SHEETS-SHEET 3.

H. I. ILLINGWORTH. v SLITTING AND FOLDING MACHINE. APPLIATION FILED JAN.29, 1909.

' 1,033,247. Patented July 23, 1912.

s SHEETS-SHEET 4.

7?...2- Aff-@M4 CDLL'MBIA PLANOQRAPH CO.. WASHINGTON, D. c.

E. I. ILLINGWORTH. SLITTING AND FOLDING MACHINE. A

APPLICATION IILBD JAN. 29, 1909. 1,033,247, Patented July 23, 1912.

illml l@ mw WM5-e6. A lwavon 4 l I 'ZWYWA UNITED STATES PATENT oEEioE.

HARRY I. ILLINGWORTH, OF SWAMPSCOTT, MASSACHUSETTS, ASSIGNOR-TO BOSTON MACHINE WORKS COMPANY, 0F LYNN, MASSACHUSETTS, A CORPORATIONk OF'MA'S- SACHUSETTS.

SLITTING AND FOLDING MACHINE.

To all whom t may concern Be it known that I, HARRY I. ILLING- WORTH, a citizen of the United States, residing at Swampscott, county of Essex, and State of Massachusetts, have invented an Improvement in Slitting and Folding Machines, of which the following description, in connection with the accompanying drawing, is a specification, like letters on the drawing representing like parts.

This invention relates to a folding and slitting machine adapted to slit the edge of a piece of work to be folded and thereafter to fold the slitted edge.

Among the objects of the invention is to provide a comparatively simple mechanism for operating the various parts necessary to perform the slitting and folding operation, and also to provide a novel way of mountingthe slitting knives so that they can be readily adjusted to act on different parts of the edge of the work.

Another object is to provide a novel construction whereby one or a plurality of slitting knives can be employed as desired, and also to provide means whereby the slitting knives are made interchangeable so that slitting knives having different shapes and contours can be readily applied to the machine. l

Another object of t-he invent-ion is to provide a novel machine of this type in which the presser element which operates to set the fold constitutes the bed for the slitting knife.

Other objects of the invention will more fully hereinafter appear, and the novel points of the invention will be set forth in the appended claims.

In the dr-awings wherein I have illustrated one form of the invention for the purpose of showing the principle thereof,

Figures 1-9 are diagram views showing thev various steps in the operation of the machine; Fig. 10 is a side view of a machine embodying my invention; Fig. 11 is a front view thereof; Fig. 12 isa top plan View; Fig. 13 is a section through the work-supporting table on the line afi-, Fig. 12; Fig. 14 is a detail View showing themechanism for operating the slitting knives; Fig. 15 is a detail view showing the mechanism for operating the presser; Fig. 16 is a detail view showing the mechanism for raising Specification of Letters Patent. Application filed January 29, 1909.

Patented July 23, 1912. serial No. 475,030.

and lowering the work-table; Fig. 17 is a section through the driving shaft showing the clutch' for ope-rating the mechanism; Fig. 18 is a detail view showing the mechanism for moving the work-table in and out; Fig. 19 is a detail view showing the mechanism for moving t-he former blade in and out; Fig. 20 is a detail of the clutch mechanism; Fig. 21 is a section on substantially the line jz/-y, Fig. 12; Fig. 22 is a plan view of the cam shaft showing the position of the cams there-on and the connections lleading to the Various parts; Fig. 23 is an enlarged sectionl through the work-table on the line ca -a, Fig. 12; Fig. 24 is a section on the line b-b, Fig. 22; Fig. 25 is a plan view of the slitting knife; Fig. 26 is a section on the line c-0, Fig. 25; Fig. 27 is a detail perspective view of the slotted portion of the presser.

The machine includes the usual ele-ments Awhich are found in folding and slitting machines, that is, it includes the work table on which the work is supported, the cutter or slitting-'knifeto slit the edge of the work' to be folded, a folder for folding the slit edge of the work,a former blade to determine the contour of the fold, and a presser element for bringing pressure on the fold to set it. I

In the embodiment herein shown, the folder is. fixed and stationary, the, presser is situated above the folder and has movement relative thereto to set the fold, the slitting knife is situated above the. presser so that the latter constitutes a bed on which the material is cut, and the work table and former blade are adapted for movementfrelative to t-he folder to bring the work into proper position to the folder to cause the fold to be made.

Before describing the constructional details of the machine herein illustrated, I will `refer to the diagram views shown in Figs.

1-9 which show the various steps in the `cycle of operations. In these views the folder is designated by 3, the presser by 4,

.the portion of the work-supporting table on which the work 9 is supported by 5, the former blade by 6, the cutter' ory slitting knife by 7, and the gage which acts to position the edge of the leather or work to be folded is designated by 8. The folder 3 is stationary .and the presser has a position above the folder, as shown in these figures. The presser carries on its upper face the gage S against which the edge of the work 9 to be folded is placed. The former blade 6 is situated beneath the portion 5 of the work table, and said former blade and work table are capable of movement relative to eacli other. The cutterl 7 is situated above the presser and has a movement toward and from it, said presser constituting a cutting bed for the cutter. The upper face of said presser may be slotted as at 171 to receive the cutting blade or blades when the cutter descends to cut the edge of the work. The cutter is normally elevated and all the parts are shown in Fig. 1 in their normal position ready to receive the work, in which position the edge of the former blade G is on subst-antially the level of the top of the presser, so

that the edge of the presser Awill not present any shoulder to interfere with pushing the work over the work table into engagementwith the gage. The work is to be held in position by the fingers of the operator, as shown in Fig. 1, and it is convenient for the operator to place his thumb beneath the work so that the edge of the work opposite to that being folded will be confined between the thumb and fingers of the operator. The edge of the portion 5 of the work table is situated somewhat back from the edge of the former blade. Vhen the work 9 is placed on the work table, the edge `to be folded is supported on the upper face of the presser and is properly positioned by the gage 8, as seen in Fig. 1. As soon as the machine is started, the cutter 7 descends, as shown in Fig. 2, thus cutting through the edge of the work and at the same time the work table may be lowered slightly if desired. The work table is then withdrawn, as shown in Fig. 3, thereby withdrawing the slit edge of the work from the top of the presser, and during this operation the former blade will preferably (although not necessarily) remain stationary. rlhe work table and the former blade then descend below the level of the folder, as shown in Fig. 4, after which the work table is advanced toward the folder thereby projecting the slit edge of the work beneath the folder, as shown in Fig. 5. rlhe work table and the former blade are then elevated into the position shown in Fig. 6 and during such operation the slit edge of the work is bent downwardly by being brought in contact with the folder. rlhe work table and former blade are then projected forwardly, as shown in Fig. 7, thus carrying the edge of the former blade into the space between the presser and the folder, and during this movement of the former blade the folder operates to fold the slit edge of the work around the edge of the former blade, which operates to determine the contour of the fold, and the presser, by engagement with the upper face of the work, prevents it from bulging up from the work table. The forward movement of the work table is not sufficient to carry it into the space between the presser and folder. The presser then descends nearly into contact with the former blade, as shown in Fig. 8, and the former blade is then withdrawn and thereafter the presser completes its pressing movement, thus setting the fold by pressing it against the folder, as shown in Fig. 9.

During the time that the fold is being set the work table and former blade descend slightly, as shown in Fi 9 so as to carry the edge of the former blade below the level of the upper face of the folder and out of the way of the folded edge when the latter is withdrawn from between the presser and folder whereby there will be no danger that said folded edge will be opened by being caught against the edge of the former blade. Since the operator is holding one edge of the work in his hands, the descending movement of the work table 5 will carry it away from the work, as seen in F 9, and while the fold is being set the work will be supported partly by the folder and partly by the operator, but not by the work table. After the folder has been set and the work has been removed, the work table and former blade are returned to their initial positions shown in Fig. l. i

Referring to the constructional details of the machine and the manner in which the various parts are operated, I would say that in the present embodiment of my invention, the work-supporting table comprises the main body 12 which sustains the face plate 5 or that portion of the work-supporting table on which the work is supported. This face plate 5 is made detachable from the main body 12 S0 that face plates having different contours can be used on the machine according to the shape of the work to be folded. rlhe particular construction by which the face plate is made removable from the body of the work will be more fully hereinafter described.

As will be seen from Figs. 14), the worksupporting table has a movement up and down and also a movement horizontally. Its movement horizontally is provided for by making the body 12 capable of sliding horizontally in ways 13 formed in two frames 15', and its rising and falling movement is secured by giving the frames 14 a vertical mm'en'ient. Fach frame 14 is shown as having depending therefrom a guiding pin or stud 15 which plays up and down in a boss Each cam 1S acts on a roll or projection 2O carried by a lever 21, said levers being situated one each side of the frame 17 and being pivoted thereto at 22, as clearly seen in Figs. 12 and 16. The ends of the levers 21 carry adjusting screws 24 which act against ears or projections 25 extending from the frames 14. .The cams 18 have such a shape that during the rotation of the cam shaft 19, the levers 21 are raised and lowered in unison, thereby raising and lowering the frames 14 and the work-supporting table 5, 12. The weight of the work-supporting table suffices to keep the rolls 20 in contact 'with the cams 1S during the rotation of the latter.

For giving the work-supporting table 12 its movement horizontally in the ways 13, the body of the table is provided with two depending projections 26, to the lower end of each of which is connected a reciprocating member 27 (see Figs. 1S and 22), said members 27 being slidably mounted in guides in the frame 17. Each member 27 has at its inner end a roll or projection 23 which is received in a cani groove 29 formed in a cam member 30 fast on the cam shaft 19. Said cam grooves 29 have the proper contour to give the wor i-supporting table its horizontal movements at the proper times.

The former blade 6 is situated beneath the face plate 5 of the work-supporting table and is capable of moving horizontally be` neath said face plate and relative thereto. Said former blade is preferably sustained so that it can be readily removed from the frame, and T prefer to so arrange said former bl ade in connection with the face plate 5 that these two parts can be removed together whenever it is desired to substitute for the parts similar parts of another shape. To permit of this ready removal of the face plate and former blade, I propose to support both of them on a holder 300 which is removably sustained by the main body 12 of the work-supporting table. This holder 300 is shown best in Figs. 13 and 19, and it comprises a plate adapted to rest on the top of the body 12 and provided with perforated lugs or ears 299 which extend down through openings 301 formed in the body 12. The apertures 302 in said lugs are adapted to receive the eccentric ends of clamping members 303 which are received in the main body 12 of the work-supporting table and are provided with handles 304 by which they may be turned. One of the clamping members is shown in clamping position in Fig. 19, but

b 1 turning said clam )inor members through.

a partial revolution, the pressure of the eccentric portion thereof on the lugs 299 is relieved and said clamping members may then be withdrawn longitudinally from the lugs, after which the holder 300 wit-h the face plate 5 and the former blade 6 canbe removed from the machine. The face plate 5 trated in Figs. 1-9 is carried out. For giving the former blade this movement relative to the holder 300 and vface plate 5, I employ a cam 31, see Figs. 19 and 22, mounted on the cam shaft 19, which cam is adapted to engage the end of the thrust rod 32 that plays back and forth in suitable guides formed in the frame 17. This thrust rodis secured at its outer end to one arm 33 of a yoke 34 which is provided with twodivergf'k ing upwardly-extending arms 35, see Fig. 11; Each arm 35 is forked at its upper end, and the forked end thereof is received in a groove 350 formed in a nut 37 screw-threaded to a pin 36. Each pin 36 is vslidably mounted in the holder 300 and is provided with one or more collars or flanges 38 that extend into slots formed in the former blade 6, as plainly seen in Figs. 19 and 23.` By giving the pins 36 a movement relative to the holder 300, said former blade 6 will be moved back and forth between the face plate 5 and said holder. The cam 31 is designed to give the thrust-rod 32 its movement outwardly thereby to withdraw the former blade from the position shown in Fig. 8 to that shown in Fig. 9.

The forward movement of the former blade from the position shown in Fig. 6 to that shown in Fig. 7 is accomplished by means of a spring 42 which encircles a pin 39 that is secured to the yoke 34 and is guided in suitable guides 40 sustained by the body 12 of the work-supporting table. This pin 39 has fast thereon a collar 41 against which one end of the spring 42 abuts, the other end of said spring abutting against the outer bearing 40. The collar 41 is preferably provided with a fiat upper surface which plays against the under surface of a positioning lug 410 formed on the body 12 o-f the table, see Figs. 13 and 19. The outward movement of the pin 39 and yoke 34 will obviously compress the spring'42, and said spring will operate to carry the yoke and the former blade forwardly whenever such movement is permitted by the cam 31.

The thrust-rod 32 has fast thereon a collar sustained on the frame 17. The front edge of the folder may have any suitable shape or contour, depending on the contour of the fold to be given to the work, and said folder is preferably made removable from the frame so that folders of differentshapes can be used.

Referring to F l0, 12 and 21, it will be seen that the folder is held in its position by means of clamping studs 50 which extend down through open slots 49 formed in the rear edge of the folder and screw into the frame 17. By simply loosening these clampinfh studs, the folder can be readily withdrawn from beneath tl e presser and another folder inserted in its place. The presser 4 is also made removable from the machine so that pressers of different contours may be used. As herein shovv'n, the presser is removably sustained by a holder 48 which in turn is supported by a shaft 51 that is carried by the ends of two arms 52 that are pivotally sustained on a rod 58 carried by the frame 17. rthe presser holder 48 is provided with two lugs or ears 54 through which the shaft 51 extends, and the rear sides of the holder 48 are provided with rearwardly-extending slotted arms 55 which embrace studs 57 depending from the arms 52, see Figs. 10, 12 and 21. The studs 57 have thereon adjusting nuts 56 by which the vertical position of the slotted arms 55 may be determined. rllhese adjusting nuts 56 constitute a means by which the holder can be turned about the shaft 51 thereby to bring the presser into parallelism with the folder 8, or into any angular position desired. I have also provided means whereby the presser may be adjusted vertically relative to the folder 3, and this is accomplished in the present embodiment by making the portions 510 of the shaft 51 which are embraced by the ears eccentric, so that by turning the shaft 51 in the ends of the arms 52, the lugs or ears will be raised or lowered. rl`he shaft 51 is held in its adjusted position by means of a spring pressed locking pin 61 which plays back and forth in a rib 63 formed on the holder 48 and which engages any one of a plurality of apertures 60 in a collar that is formed on the shaft. 51.

The presser 4 is removably sustained by the holder 48 so that said presser may be readily removed and another presser substituted therefor. ln the present embodiment, I have provided for this by headed clamping studs 71 'which are sustained by the holder 48 and which extend through slots formed in the rear edge of the presser, the heads 72 of said studs engaging the under side of the presser. Each stud may be provided with a web or fin 723 which is received in the slot 70 and which prevents the stud from turning. A nut 74 on the upper end of the stud serves to clamp the head 72 against the under side olf the presser. By loosening the nuts 74, the presser may be readily removed by merely withdrawing it from beneath the holder, the open slot 70 permitting this to be done wit-hout entirely removing the clamping studs 71. r1`his construction provides for the adjustment of the presser both angularly and vertically. The vertical movement of the presser is secured by cams mounted on the camsha-ft 19, and in the present embodiment of my invention, 1 employ the cam grooves 75 for this purpose. These cam grooves are formed in the sides of cam members 76, see Figs. 15 and 24, which are fast on the shaft, and to simplify the construction, the cam members 7 6 are shown as integral with the cam members 18. This is only one way in which these cams may be arranged, however, and it is not essential to the invention. Each cam groove 75 receives a roll or projection 77 extending from a frame 78 that is provided with an opening which embraces the cam-shaft 19 and which has connected thereto a bearing 79 in which the end of the shaft 51 is received. The frames 78 are herein shown as received between the cam members 76 and the side of the main frame 17, and each frame is provided with a rectangular aperture 81 in which is received a flat-sided collar loosely mounted on the cam shaft 19. As the cams 76 rotate, the cam grooves 75 cause the frames 78 to rise and fall, thereby giving the necessary vertical movement to the presser 4, as will be obvious. A turnbuckle connection 82 between each bearing 79 and frame 78 serves to permit of the necessary adjustment between these parts.

The cutter or slitting knife, as has been before stated, is so arranged that it can be adjusted into different positions along the folding edge of the folder, and the arrangement is also such that a plurality of cutters can be used at the same time. 1n the present embodiment of my invention, the cutter or cutters are connected with a rod 84 carried by the ends of two levers 85 which are pivotally mounted on the shaft or pin 53. Each cutter is shown as comprising one or more knife blades 7 which are connected to a head 86, see Figs. 14, 25 and 26. rlhe head is provided with slots to receive the shanks of the cutters, and the cutters are held in their position by a retaining strap 87 which extends around the front of the head 86 and lis held thereto in some suitable way, as by screws 88. The shank of each knife blade is preferably provided with a notch 89 of a size to partially receive the retaining strap 87, whereby said strap serves not only to hold the knives from movement radially, but also from movement vertically with reference to the head 86. The head 86 is provided with a stem 90 which extends up through and slides freely in a guiding boss 91 that is secured to and sustained by the presser 4, said boss being shown as having legs 92 extending therefrom which are secured to said presser. The stem 90 has fast thereon a grooved collar 93 which is received between the arms of a forked member 94 that is clamped to the shaft 84 by means of a clamping screw 95. The collar 93 can move back and forth freely between the arms of the forked member 94, but is held from vertical movement by reason of the fact that said arms are received in the groove of the collar. The boss 91 serves to guide the cutter during its vertical movement, and the vertical movement is given to the cutter by the vertical movement of the arms 85 and the forked members 94. The forked members 94 necessarily move in the arc of a circle, but since the collars 93 can slide freely in said forked members, there is no cramping of the parts during the slight movement of the cutter. The members 94 which are clamped to the rod 84 are capable of being adjusted longitudinally of the rod thereby providing the means above referred to for shifting the cutters into different positions along the folding edge of the folder. The cutter, it will be seen, is permanently connected with the presser and whenever the presser is removed7 said cutter is removed therewith. This is permitted, however, by reason of the fact that the forked members 94 have open slots, so that whenever the presser is withdrawn from its holder 48, the collars 93 will merely draw out from between the arms of the forked, members 94.

In the drawings I have shown two cutters, but the number of cutters is not essential to the invention and may be varied according to the character of the material to be cut and folded. The arrangement shown in the drawings is one which could be used for cutting and folding the edge of an upper, and as shown in Fig. 12, the folder, former blade and presser are arranged to operate on two pieces at once, that is, rights and lefts. The gage 8 is rigidly but removably and adjustably secured to the presser 4, and this gage will, of course, have the proper contour to properly position the edge of the piece to be folded.

The vertical movement of the cutters is secured by the cam members 7 6 which, as stated above, may be integral with the cam members 18 if desired. The arms 85 have pivotally secured thereto slotted struts 105 which carry at their lower ends rolls or projections 106 to engage the periphery of the cam member 7 6. These struts are guided in their vertical movement by guiding studs or screws 107 which extend through the slots 108 formed in the struts and into the frame 17. The cam members 7 6 operate to elevate the cutters and hold them elevated, and at the proper time, said cam members permit these cutters to drop by their own weight, thereby performing the cutting operation.

The camshaft 19 is operated from a driving shaft 110 which is suitably journaled in the frame, and which is herein shown as having a driving pulley 111 thereon by which it may be driven. This driving shaft 110 has loose thereon a pinion 112 which meshes with and drives a gear 113 fast on the cam-shaft 19, see Figs. 18 and 20. vThe cam-shaft is not. continuously driven but is merely rotated whenever it is desired to perform the cutting andv folding operation, and I have provided a clutch mechanism for controlling the operation of the cam-shaft 19, which clutch mechanism will start said cam-shaft in operation when t-he clutch is engaged and will continue to keep said shaft in operation until one complete rotation of the shaft has been accomplished, and will then automatically disengage itself thereby permitting the cam shaft to stop. The clutch herein shown comprises the two friction

clutch members

114, 115, the clutch member 114 being integral or rigid with the pinion 112, and the clutch member 115 being fast on the driving shaft 110. These clutch members are normally held separated from each other by a clutch-.disengaging spring 116 which surrounds the shaft 110 and bears at one end against the clutch mem- 114, a thrust ball bearing 118 being preferably placed between the collar 117 and the clutch member 114.

The longitudinal movement of the clutch member 114 necessary to throw the clutch into engagement is secured by the following means. 119 designates a stationary member having extending therefrom a plurality of thrust pins 120, each having its end surface inclined, as plainly seen in'Figs, 17 and 20. One end ofthis stationary member embraces the shaft 110 while the other end embraces the shaft 19, as shown in Figs. 18 and 20. Loosely mounted on the shaft 110 is a collar 121 carrying thrust pins 122 which have inclined ends, as shown in Figs. 17 and 20,*and which engage the thrust pins 120. This collar 121 has extending therefrom an arm 123 to which is connected a 4link 124 leading to a treadle. When the link is depressed, the collar 121 is turnedabout the shaft 110 and the inclined ends of the thrust pins 122 and 120 cause said collarV and the stationary member to become separated from each other. byV a thrust bearing 126 and therefore it cannot move longitudinally. The separation of the member 119 from the collar 121, therefore, `moves the member 119 toward the pinion 112, thus carrying the latter and the The collar 121 is backedH clutch member 114 toward the clutch member 115 4and throwing the clutch into engagement. A thrust ball bearing 127 is preferably located between the pinion 112 and the stationary member 119. The parts are so arranged' t-hat after the clutch has been thrown into engagement, and the camshaft 19 has begun to rotate, said clutch will be positively held in engagement until the cam-shaft has completed its movement even though the treadle be released. This is provided for herein by forming the periphery of one of the cam members with a recess 130, see Fig. 18, which is situated to receive the end of the arm 123 when the parts are in their normal position. When the treadle is depressed the end ofthe arm 123 is carried out from the recess 130 and as soon as thecam-shaft begins to rotate, the high portion of the periphery of said member 30 comes opposite the arm 123 and prevents the arm from returning to its normal position until the cam-shaft has made one complete rotation.

The operation of the device will be readily understood from the foregoing, but may be briefly summarized as follows: The operator places the work 9 on the face plate 5 of the work table with the edge against the gage 8 and overlying the upper face of the presser, the work being held in proper posit-ion by the fingers of the operator, as seen in Fig. 1. The treadle is then depressed to throw the clutch into engagement and the cam-shaft 19 begins its rotation. The various cams on the camshaft are so timed that as soon as the cam-shaft begins its rotation, the low portion of the cams 7 6 comes under the rolls 106 and the arms 85 with the cutters descend by gravity thereby cutting the edge of the work. The cams 76 immediately raise the cutters into their normal position as soon as they have completed their work. During this time the cams 18 permit the work table to drop slightly into the position shown in Fig. 2. As soon as the cams have brought the cutters back to their normal position, the cams 30 come into play to withdraw the work-supporting t-able, thereby withdrawing the work from the presser, as shown in Fig. 3. During this movement of the worksupporting table, the former blade remains stationary. The cams 1S are by this time rotated sufliciently so that the work-supporting table is permitted to drop into the position shown in Fig. 4:, and the cams 30 then come into play to move said work-sup porting table forwardly into the position shown in Fig. 5. The cams 18 then partially elevate the work-supporting table, thus bringing it into the position shown in Fig. G, in which position the slit edge of the work 9 is bent downwardly around the edge of the former, and then the

cams

31 and 30 cause the former and work-supporting table t move forwardly into the position shown in Fig. 7 thus carrying the cut edge of the .work between the presser and the folder and forming the fold in the work. Said

cams

31 and 30 then operate to withdraw the work-supporting table and the former blade, and the cams 18 permit the work-supporting table to descend slightly, as shown in Fig. 9, and the cams 76 give proper movement to the presser to cause it to set the fold. After the fold has been set, the presser is elevated slightly to permit t-he operator to withdraw the work and then the work table and former blade are returned to their initial positions. lilhile the fold is being set the work is sustained by the operator and the folder and does not necessarily rest on the table 5. During the rotation of the cam-shaft, the clutch is positively held in engagement by the periphery of the cam member 30 acting on the end of the arm 123.

The folder, the presser, the former blade,

work-supporting table, the gage and the cutters are all made interchangeable so that any one of these parts can be readily removed from the machine and a new part substituted therefor.

I have not attempted to describe herein all embodiments of my invention, but have simply illustrated one embodiment which is sutlicient to show the principle of the invention.

Having described my invention, what I claim as new and desire to secure by Letters Patent is 1. In a slit-ting and folding machine, the combination with a stationary folder, of means cooperating with the folder to fold the edge of the work, a presser, means to move the presser toward and from the folder to set the fold, a cutter, and means to move the cutter and the presser relative to each other to cut the edge of the work prior to the folding operation.

2. In a slitting and folding machine, the combination with means including a folder for forming a fold in the edge of the work, of a presser, means to move the presser and folder relative to each other to set the fold, a slitting knife cooperating with the presser to cut the edge of the work before the fold is made, and means to give the slitting knife and the presser a movement relative to each other to eifect the cutting operation.

3. In a slitting and folding machine, the combination with a folder and means cooperating therewith to fold the edge of the work, of a presser, means to move the presser toward the folder to set the fold, a cutter, and means to move the cutter toward the presser to cut the edge of the work prior vto the folding operation.

4. In a slitting and folding machine, the combination with a stationary folder and meansV coperating therewith to fold the edge of the work, of a presser normally separated from the folder, means to move the presser toward the folder to set the fold, a cutter, and means to move the cutter toward the presser for cutting the edge of the work prior to the folding operation.

5. In a slitting and folding machine, the combination with a folder and means cooperating therewith to fold the edge of the work, of a presser, means to move t-he presser and the folder relative to each other to set the fold between them, a cutter, and means to move the cutter toward the presser to slit the edge of the work prior to the folding operation and then away from the presser.

6. In a slitting and folding machine, the combination with a folder, of a presser, a slitting knife, means to move the knife toward the presser for cutting the work, and then away from t-he presser, and means to give the work and folder a movement relative to each other in a direction at right angles to the direction of movement of the slitting knife for folding the work, and means to operate the presser to set the fold.

7. In a slitting and folding machine, the combination with a folder, of a presser, a slitting knife arranged to be moved toward the presser to cut the work and then to be moved away from the work, means for giving the work and the folder a relative movement first in the direction of movement of the slitting knife and then laterally to said direction for folding the work, and means to operate the presser to set the fold.

8. In a slitting and folding machine, the combination with a folder and a work-supporting table, of a combined presser'and cutting bed, a cutter which coperates with said combined presser and cutting bed to cutthe work cutter-act-uating devices, and means to actuate the parts to fold the cut portion of the work.

9. In a slitting and folding machine, the combination with a work-supporting table, of a folder, a cutter, a presser provided with an upper face to support the work during the cutting operation, and means to actuate said parts to cut the edge of the work and then to fold said cut edge along a line sit-uated in the plane of the body of the work.

10. In a slitting and folding machine, the combination with a folder, of `a pressersituated above the folder, a cutter situated above the presser, the upper face of the presser' constituting a cutting bed for the cutter, a-

work table, and means to actuate the parts.

11. In a slitting and folding machine, the combination with a stationary folder, of a work table, means to move the work table relative to the folder to cause a fold to be made in the work, a presser situated above the folder, means to move the presser toward the folder to set the fold, a cutter situated above the presser, and means to move the cutter toward the presser to cut the edge of the work.

12. In a slitting and folding vmachine, the combination with a folder, of a presser situated above the folder, a cutter situated above thepresser, the upper face of said presser constituting a cutting bed for the cutter, means carried by the presser to guide the cutter in its cutting movement, and means to actuate the parts.

13. In a slitting and folding machine, the combination with a work table, of a folder, a cutter, a presser provided with an upper lface to support t-he work during the cut-ting operation, means sustained by the presser for guiding the cutter in its cutting movement, kand means to actuate the parts to cut the edge of the work'and then to fold said cut edge.

14. In a slitting and folding machine, the combination with a work table, of a folder, a cutter, a presser, means sustained by the presser to guide the cut-ter in its operating movement, and means to actuat-e t-he parts to cut the edge of the work and then to fold the cut edge.

15. In a slitting and folding machine, the combination with a stationary folder, of a work-supporting table, means to move the work-supporting table relative to the folder to make a fold in the work, a presser situated above the folder, and means to move the presser toward the folder to set the fold, a. cutter situated above the presser, and means to move the cutter toward the presser .to cut the edge of the work.

16. In a slitting and folding machine, the combination with a stationary folder, of a work-supporting table, means to move the work-supporting table relative to the folder to make a fold in the work, a presser situated above the folder, means to move the presser toward the folder to set the fold, a

`cutter situated above the presser, means tov move the cutter toward the presser to cut` the edge of the work, and means sustained bythe presser to guide they cutter in its movement.

17. In a slitting and folding machine, the combination with means to make a fold in the edge of the work, of a cutter for cutting the edge of the work, and means to sustain the cutter in different positions longitudinally of the edge of the work.

18. In a slitting and folding machine, the combination with means to make a fold in the edge of the work, of a cutter capable of being situated at different positions along the edge to be folded, and means to operate the cut-ter in any one of said positions.

19. In a slitting and folding machine, the combination with means to make a fold in 4the edge of the work, of a plurality of sepa-- rate cutters each comprising a set of cutting blades, and means to operate the cutters simultaneously.

20. In a slitting and folding machine, the combination with means to make a fold in the edge of the work, of a pair of pivo-ted arms, a rod extending between said arms at the front ends thereof, and a cutter sustained by said rod.

21. In a slitting and folding machine, t-he combination with means to make a fold in the edge of the Work, .of a presser to set said fold, a pair of pivoted arms, a. rod carried thereby, a cutter sustained by said rod,

' and means sustained by the presser` to guide the cutter.

22. In a slitting and folding machine, the combination with means to make a fold in the edge of the Work, of a pair of pivoted arms, a rod carried thereby, and a cutter' sustained by and adjustable longitudinally of the rod.

23. In a slitting and folding machine, the combination with means to make a fold in the edge of the Work, of a pair of pivoted combination With means to make a fold in the Work, of a presser to set the fold removable from the machine, a cutter having a grooved stem, a guiding hub sustained by the presser through which the stem plays, a pair of pivoted arms, and aforked arm sustained thereby and received in the groove in the stem of the cutter.

26. In a machine of the class described, the combination with a stationary folder,l of Work table having a face plate on which the Work is sustained, a former blade sit-uated beneath the face plate and movable relative thereto, and means to move the Work table and former blade thereby to make a fold in the edge of the Work.

27. In a folding machine, the combination with a folder, of a Work table comprising a body and a holder removably sustained thereby, a face plate for receiving the wor t rigidly carried by the holder, a former blade also sustained by the holder and situated beneath the face plate, means to move the Work table relative to the folder to make a feld, and means to move the former blade relative to said Work table.

28. In a folding machine, the combination with a folder', of a Work table comprising a body and a holder removably sustained thereby, a face plate rigidly carried by the holder, a former blade sustained by the holder and removable therewith, said former blade being situated beneath the face plate, means to aetuate the Work table, and means to move the former blade relative to the Work table.

29. In a folding' machine, the combination with means to make a fold in the edge of the material, of tivo pivotally-mounted arms, a rod sustained by the arms, a holder carried by the rod, a presser removably sustained by the holder' and means to move the arms thereby to cause the presser to set the fold.

30. In a folding machine, the combination with means to make a fold in material, of two pivoted arms, a rod sustained by said arms, a presser removably carried by the rod, means to adjust the presser vertically and means to move the arms thereby to cause the presser to set the fold.

3l. In a folding machine, the combination With a folder, of a Work table, means to move the Work table, a pair of pivoted arms, a rod sustained thereby, a presser carried by said rod, means to actuate said arms to move the presser relative to the folder to set the fold, and means to adjust the presser angularly with relation to the folder.

32. In a slitting and folding machine, the combination with means to make a fold in the Work, of a cutter comprising a grooved head, cutting blades having notched shanks Vreceived in the grooves of the head, a retaining strap secured to the head and rei ceived in the notches of the blades for holding the latter in position.

33. In a slitting and folding machine, the combination With means to make a fold in the edge of the Work, of a cutter, cutteroperating devices separate from the folding means, and a guide for the cutter' separate from the cutter-operating devices.

3a. In a slitting and folding machine, the combination with means to make a fold in the edge of the Work, of a cutter. cutter-ep erating devices separate from the folding means, and a guide for the cutter arranged to give the latter a right line movement.

35. In a slitting and folding machine, the combination With means to make a fold in the edge of the Work, of a cutter, a member separate from the folding means for actuating the cutter which member operates in the arc of a circle, and a guide for the cutter arranged to give the latter a right line movement.

36. In a slitting and folding machine, the combination with means to make a fold in the edge of the Work, of a presser to set the fold, a cutter to cut the edge of the Work, means for actuating the cutter, and a guide for the cutter sustained by the presser.

87. In a slitting and folding machine, the combination With means to make a fold in the edge of the Work, of a cutter-operating member separate from said means, a cutter loosely sustained thereby, and a guide for the cutter separate from the cutter operating member.

` 3S. In a slitting and folding machine, the combination With means to make a fold in the edge of the Work, of a pivoted member having a rod or bar extending parallel to its pivotal axis, and a cutter sustained by said rod or bar and adjustable longitudinally thereof. v

39. In a slitting and folding machine, the combination with means to make a fold in the edge of the Work, of a pivoted cutteractuating member, and a cutter carried thereby and adjustable thereon in a direction parallel to its pivotal aXis.

In testimony whereof, I have signed my name to this speciiication, in the presence of two subscribing Witnesses.

HARRY I.` ILLINGWORTH. Witnesses: K

LOUIS C. SMITH, THOMAS J. DRUMMOND.

Copies of this patent may be obtained for i`ve cents each, by addressing the Commissioner of Patents,

Washington, D. C.