US1341409A - Folding-machine - Google Patents

Description

W. J. BEATTIE.

FOLDING MACHINE.

APPLICATION FILED SEPT. 17, 1917.

1,341,409. Patented May 25, 1920.

5 SHEETS-SHEET l.

l 11* 113 j 10 L0 ditto/"n 31 1 w. J. BEATTI E.

FOLDING MACHINE.-

APPLICATION FILED SEPT. 17. 1917-" V 1,341,409. I. Patented May 25, 1920.,

6 SHEETS-SHEET 2.

C/t Zion: e 1

W. J. BEATTIE.

FOLDING MACHINE.

APELICATION HLED SEPT. n. 1917.

1,341,409. Patented y 25, 1920.

6 SHEETSSHEET 3.

rzventar I W. 1. BEATTIE.

FOLDING MACHINE. APPLICATIQN F.ILED SEPT. 11. 1917.

1,341,409. Patented May 25,1920.

6 SHEETSSHEET 4.

70 Irzunor 0 V ZMM elii'orney W. J. BEATTTE.

FOLDING MACHINE.

APPLICATION FILED SEPT. 17. 1917.

1,341,409., 7 Patented May 25, 1920.

6 SHEETS-SHEET 6.

In van 07 Jhorme Uhli'l'hll) PATENT FHQE.

WALTER J. BEAITIE, F COI-EOES, NEN YORK, ASSIGNOB TO THE IBEA'ITIE MANUFAC- TUBING (10., OF (ESE-IDES, NEYV YORK, COBPORATIGN OF NEW YORK.

FOLDING-MACHINE.

Specification 01 Letters Patent.

Patented May 25, 1920.

Application filed September 17, 1917. Serial No. 191,721.

To all whom it may concern Be it known that I, WALTER J. BEATTIE, a citizen of the United States, residing at Cohoes, county of Albany, and State of New York, have invented certain new and useful Improvements in Folding-Machines, of which the following is a specification.

Reference may be had to the accompanying drawings, and the reference characters marked thereon, which form a part of this specification. Similar characters refer to similar parts in the several figures therein.

This invention relates to machines of the general type shown in U. S. Letters Patent No. 1,167,329, granted to me January 4., 1916.

.lertain objects of the invention are to simplify the construction and manner of operation; to economize in the use of the electric current in the operation of the ma chine; and to facilitate Various adjustments for adapting the machine for various uses.

Other objects will appear in connection with the following description.

lligure l. of the drawings is a view in front elevation of a folding-machine embodying my invention.

Fig. 2 is a view in elevation of the right hand end of the machine as viewed in Fig. l.

is a view in rear elevation of the same.

Fig. 4% is a top plan view of the machine with the templet removed, and the templetcarrying arm, partly broken away.

Fig. 5 is a horizontal cross section of the 35 machine taken on the broken line 5-5 in Fig. 2.

Fig. 6 is a vertical longitudinal section of the machine taken on the broken line 66 in Fig. 4.

Fig. 7 is a horizontal cross section of the machine taken on the broken line-77 in Fig. 6.

Fig. 8 a view in perspective of one of the eccentric-siraps for connecting an eccen- 45 trio with a rear infolder.

Fig. 9 is a similar view of one of the eccentric-stra 'is for connecting an eccentric with the front corner-infolder.

Fig. 10 is a vertical cross section taken on 50 the broken line l0l.0 in Fig. l, through the clamping connection between an eccentric-strap and an infolder.

Fig. 11. is a view in vertical cross section on a larger scale of that part of the infolderoperating mechanism which is shown in vertical cross section in Fig. 1, including an eccentric and an eccentric-strap for operating one of the front corner-infolders; and a means whereby the intermediate front infolder is operated. I

Fig. 12 is a plan view of the rotatory shaft having arms adapted to be connected with the toothed-racks whereby the infolders are operated.

Fig. 13 is a vertical crosssection taken on the broken line 13-13 in Fig. 12, of the universal-joint-connection between one of said arms, and a link whereby said arm is connected by one of said racks.

Referring to the drawings wherein the in vention is shown in preferred form, 1 is the frame of the machine, and 2 is a bed upon which the blanks are placed to be folded, which bed is vertically movable in an opening in the top, 3, of the frame.

A templet, 4L, cooperates with the bed, 2, to hold the blank in position upon the bed, while the edges of the blank are inturned over the edges of the templet by means of infolders, 5, 5, and 5 movable inwardly and outwardly over the bed. lhe templet is mounted upon an arm, 6, pivoted at 7 upon a bracket, 8, projecting from the frame of the machine whereby the templet is adapted to be moved toward and from the bed. The templet may be of any known form.

For certain purposes I prefer to employ a templet which is automatically eXpansible and contractible by means of an eccentrically connected link 9, in substantially the manner shown. and described in U. S. Letters Patent No. 972,320, granted to me October 11, 191.0, for folding-machines. As this feature of the templet, however, forms no part of the present invention, a detailed description thereof will not be necessary.

I have shown two infolders, 5, arranged along the rear of the bed adapted to fold the rear edge and the neighboring corner portions or end portions of the blank.

Arranged along the front of the bed, I have shown two infolders, 5, adapted to fold the front corner portions of the blank, and an intermediate side infolder, 5 adapted to fold the remainder of the front edge of the blank.

llhe two infolders, 5, are movably inter connected by means of a bar, 10, preferably fixed to one of said infolders and slidably mounted in the companion infolder, each of said infolders being engaged by an eccentric, 11, operated by suitable mechanism whereby the infolders can be moved inwardly and outwardly, and toward and from each other in the manner set forth in U. S. Letters Patent No. 1,071,677, granted to John Maitland and myself August 26, 1913.

The front corner infolders, 5, are movably connectedtogether by means of a bar, 10, preferably fixed in'a slideway, 10 on one thereof, and. longitudinally movable in a similar slideway, 10 on the other thereof, each of said infolders, 5 being en gaged by an eccentric, 11, operating in a manner similar to the eccentrics, 11. The intermediate front side infolder, 5", is movable inwardly and outwardly over the bed along a slide-bar, 110, the front end of which is pivotally mounted at 111 upon the top of the machine, leaving said slide-bar free for lateral self-adjustment as the infolder, 5, moves inwardly and outwardly.

Coil-springs, 112, tend to yieldingly hold the infolder, 5 in its outermost position. and to restore it to said outermost position when released from other influences.

Inward movement is imparted to the infolder, 5 by means of a pair of levers, 113, pivoted respectively at 114, upon the top of the machine, theinner ends of said levers being connected by the respective links, 115, with said infolder, 5. The other ends of said levers, 113, are adapted to be engaged by respective cams, 116, in fixed relation to the respective eccentrics, 11, during the operation of the machine.

By properly locating or adjusting the position of the cams, 116, with relation to the respective eccentrics, 11, the movements of the infolder, 5", can be so timed and regulated with respect to the movements of the infolders, 5, as tosecure most effective re sults in folding certain styles of blanks.

For example z-Tn the style of blank for which infolders shown in Fig. t are p articularly adapted, the front or bottom edge of the blank is indented or concaved while the righthand end of the blank is sharply upturned or hook-shaped.

1n folding such a blank it is found difficult or impossible to provide for a sumoient inward movement of the infolder which folds the indented or incurved lower side edge of the blank by means of an infolding member which is integral with, or partakes of the same movement as, the infoldin'g member which infolds the neighboring corner portions of the blank.

By the means shown, however, it will be seen that the degree of inward movement of the infolder, 5", is not dependent upon the degree of inward movement'of either of the neighboring corner infolders, 5 because the degree of inward movement of the corner infolders, 5 is regulated by the throw of the respective eccentrics, 11, while the inward movement of the infolder, 5 is regulated by the throw of the cams, 116, which can be made as prominent as may be desired. 7

The templet is normally heldraised from the bed by means of a coil-spring, 12, connecting a rearward extension, 13, of the templet-arm, 6, with an eye, 1 1,.on a stationary part of the machine. 7

The templet-arm is adapted to be drawn downward to force the templet against the bed, or the interposed blank, by means of a rod, 15, pivoted at 16, upon the templetarm, and pivotally connected at 1,7, with the core, 18, of a solenoid, 19, whereby when an electric current is passed through the circuit of said solenoid, said. rod, 15, will partake of the downward movement of the core, 18, and thus move the templet down upon the bed.

As a preferred means for oltierating the infolders, 5, I rotatively mount upon the frame of the machine in fixed relation to the respective eccentrics, 11, pinions, 20, adapted to be engaged by the toothed rack, 21, ca: pable of longitudinal sliding movements through a pair of slideways, 22, on the frame of the machine.

In like manner I rotatively mount upon the frame of the machine in fixed relation to therespective eccentrics, 11, pinions,,20, adapted to be engaged by a toothed rack, 21, similar to the rack, 21, and similarly capable of longitudinal sliding movements through slideways on the frame of the machine.

The racks, 21 and 21, are preferably severally obliquely arranged with respect to a line extending from center to center of the two pinions engaged by the-rack, whereby the rack engages the outer side of one and the inner side of the other of said pair of pinions, by which arrangement similar converging, or similar diverging, movements can be imparted to both infolders operated by said rack, substantially as shown and described in U. S. Letters Patent No. 1,167,329, granted? to me January 4:, 1916.

The respective racks, 21 and 21 and the pinions engaged thereby, are mounted on a level below the plane of the top of the frame as shown in Figs. 1 and 3, while the eccentrics, 11 and 11 and the cams, 116, are mounted above the level thetop of the frame of the machine, as shown in said figures.

The manner in which this is accomplished is particularly shown: in Fig. 11, wherein a vertical shaft,'98 ,is shown rotatively mount ed in a: bearing in thetopv of themachine,

one of the pinions, 20, being fixed upon the lower end of said shaft below the top of the machine.

Adjacent to the upper side of the top of the machine, the eccentric, 11 is adjustably secured upon said shaft, 98, by means of a set-screw, 99, inserted through a shaftinclosing sleeve forming an upward extension of the eccentric; and immediately above said eccentric the cam, 116, is adjustably secured upon said shaft, by means of a set-screw, 100.

By means of the arran ement just described, the eccentrics and also the cams, 116, which determine the throw of the respective infolders are located above the top of the machine where they are readily accessible and can be easily adjusted to change the throw of the respective infolders from time to time as may be found necessary.

The respective racks, 21 and 21 are connected by links, 23, with arms, 26, projecting in opposite directions fromthe upper end of a shaft, 2", rotatively mounted within a hollow post, 28, forming part of the frame of the machine, and rigidly connected with the top of the machine by means ot vertical members, 29, through the space between which members the arms, 26, project and are free to play.

The arm, 26, at the front of the machine extended to form a handle, 30, whereby the in'l'oldcrs can be operated by hand when desired The links, 23, are connected with the respective arms, 26, each by a universal joint, 101, which is adjustably mounted upon the respective arm, 26, by means of a screw-bolt, 102, adjustably movable along a slot, 103, in said arm, 26, and secured in adjusted position by means of a nut, 103. By means of the adjustment thus provided, said universal joint, 101, can be mounted upon the respective arm, 26, at a greater or less distance from the axis of the shaft, 27, to vary the throw of the respective racks, 21 and 21, and the length of moven'ient of the eccentrics from time to time as may be desired or round necessary.

A pair of arms, 3,. and project in opposite directions from the lower end of the shaft, 27, the arm, 31, being connected by a link, with the core, 3%, of a solenoid, so arranged. that when an electric current is passed through the circuit of said solenoid, the movement of the core, 34, will he imparted through arm, 31, shaft, 27, and arms, 26, to the respective racks, 21 and 21 to operate the infolders in an inward direction.

A coil-spring, 97, which connects one of the arms, with the frame of the machine tends to yieldingly hold the infolders withdrawn to their outermost position.

The movable bed, 2, is supported upon a movable frame, 2st, by means of four adjusting screws, 25, each supporting one corner of the bed, and whereby the bed can be leveled or adjusted when necessary.

The bed-supporting frame, 2 1, when not in use for pressing the blanks, rests upon two posts, 36, projecting upward from a pair of arms, 37, which extend in opposite directions from the hollow post, 26, into which arms said posts, 36, are screwed whereby they are capable of vertical adjust ment when necessary. The posts, 36, thus support the frame, 24, near each end along the longitudinal middle of the frame.

By means of the supports and adjustments thus provided, the bed can be very accurately positioned for proper cooperation with the templet and the infolders during the folding operation.

The adjusting screws, 25, directly engage cross-bars, 38, upon which cross-bars the bed is supported by means of four lugs, 39, one at each corner of the bed. he bed itself may be of any desired form.

I have shown a hollow bed adapted to receive an electrical heating element, which element is not shown.

The bed-supporting frame, 24, is provided with a central aperture, 4-0, adapted to receive the upper end, 41, of shaft, 27, which is made of reduced. ciameter.

The shaft, 27, is mounted in the post, 28, with provision for vertical. movement, and the bed-supporting frame is adapted to be engaged and raised by the body portion of the shaft, 27, to accomplish the pressing of the folded blanks.

Sufficient lost motion is provided in connecting the links, 23, with the respective racks, 21, and arms, 26, and in connecting the link, 33, with the arm, 31, and core, 34:, of the solenoid, 35, to permit such vertical movement of the shaft, 27.

A. rod, 42, extends from the lower end of theshaft, 27, to a pressing lever, 83, fulcrumed at one end at 84- upon the frame of the machine, the other end of said lever being engageable with the core, 43, of a. solenoid, 44!, and so arranged that when said solenoid is energized the lever, 83, forced u nvard, imparting upward movement to the rod, 42, shaft, 27, bed-supporting frame, 24-, and bed, 2. i

A coil-spring, 15, connects the pressing lever, S3, with the frame of the machine, and serves to counterbalance a substantial part of the weight of the lever, 83 and the parts supported therefrom.

It will be seen that by energizing the solenoids, 19, 35 and 4a, successively in the order named, the templet will be forced down upon the bed, the infolders moved inwardly over the templet to inturn the edges of a blank held upon the bed by the templet, and the bed will be forced upward to press the folded blanks so held between the bed and'the infolders.

Electric current for energizing the solenoids is furnished by means of wires,- 47 and 18, connected with a generator or other source of supply not shown.

The supply of electric current to the solenoid, 19, is controlled by an electric switch, a6, shown in the form of a receptacle containing a body of mercury in which is immersed one end of an electrode, 4:9, connected with wire, 47. The other electrode, 50, is movable into and out of contact with said body of mercury by means of a lever, 51, fulcrumed at 52 upon the frame of the machine with one end of which lever the electrode, 50, is pivotally connected.

A wire, 53, connects said electrode, 50, with one end of the coil of solenoid, 19, the other end of said solenoid being connected by wire, 5 1, with the main supply wire, 48.

A coil-spring, 55, connecting the lever, 51, with the frame of the machine tends to yieldingly support the lever with the electrode, 50, withdrawn from contact with said body of mercury in which position the circuit through solenoid, 19, is opened.

A yielding dog, 95, is pivotally mounted upon the other end of said lever, 51, andis yieldingly held by spring, 56, in position to be engaged by a rod, 57, vertically reciprocatory in a bearing on the frame of the machine.

The lower end of the rod, 57, is operatively connected with an L-shaped offset, 58, which projects rearwardly from a foot-operated lever, 59, having a foot-rest, 60, which lever is fulcr'umed at 61 upon the frame of the machine.

Downward pressure upon the foot-rest, 60, will thus raise the end of lever, 51, which carries the dog, 95, causing the other end of the lever to force the electrode, 50, down into contact with the body of mercury in the switch, 16, to close the circuit through solenoid, 19, thus causing the templet to be forced downward upon the bed or an interposed blank.

The supply of electric current to the solenoid, 35,.is controlled by means of a pair of switch'contacts, 62 and 68.

The contact, 63, is mounted upon the frame of the machine, and is connected by wire, 6a, with the wire, 53, to which electric current is supplied through the electrode, 50, of the switch, 46.

The other contact, 62, is mounted upon the templet actuating-rod, 15, in position to engage the contact, 63, as the templet is lowered upon the bed.

The contact, 62, is connected by wire, 65, with one end of the coil of solenoid, 35, the other end of said coil bein, connected by Wire, 66, with the main supp y wire, 48.

The solenoid, 35, can thusbe energized only after the solenoid, 19, has been energized and has caused the templet to be forced down upon the bed, and the energizing electric circuits through both solenoids, l9 and 35, will be simultaneously broken by the elevation of the electrode, 50, of switch, 16.

The solenoid, 85, when energized as above described forces the infolders inwardly over the edges of the templet to infold the edges of the blank. i

The supply of electric current to the sole noid, 1 1-, is supplied by an electric switch, 67, similar to the switch, 46, and having a fixed electrode, 68, connected by wire, 69, with the main supply wire, 17, and a movable electrode, 70, connected by wire, 71, with one end of the coil of solenoid, 44, the other end of said solenoid being connected by wire, 72, with the wire, 66, and thus with the main supply wire, 48.

The movable electrode, 70, is moved into and out of contact with the body of mercury within switch, 67, by means of a lever, 73, connected with the frame of the machine by a coil-spring, 74, which tends tofor-ce the electrode, 70, down into contact with said body of mercury in switch, 67.

The lever, 73, which is pivoted at 75 upon the frame of the machine is at certain times raised and held in raised position against the force of the spring, 74, by means of a cam, 76, on one end of a slide-bar, 77, which reciprocates longitudinally through a slideway, 78, fixed upon the frame of the machine, said cam being engageable with a pin or roller, 86, projecting laterally from said lever.

A dog, 7 9, is pivoted at 80 upon the other end of said slide-bar, 77, said dog being pro vided with a notch, 81, adapted to engage a pin, 82, fixed upon the arm, 32.

A coil-spring, 85, connects the dog, 79, with the frame of the machine, tending to yieldingly force said dog into engagement with said pin, 82, and also to yieldingly force the slide-bar, 77, in a direction to cause its cam, 76, to engage the pin or roller,

86, on the lever, 73.

A lever, 87, is pivoted at 88 upon the frame of the machine in position for one of its ends to engage the dog, 79, its other end being connected by a link, 89, in an arm, 90, in fixed relation to the foot-lever, 59, which foot-lever is yieldingly held raised by a coilreleased by movement of the lever, 87, accompanying a downward movement of the foot-rest, 60: and. when said pin, 82, is engaged by the notch, bl, the parts are so interlocked that the movement imparted to the arms, 32, accompanying the inward movement of the infolders causes the slidebar, 77, to be moved in opposition to the force of the spring, as, to withdraw the can], 76, from beneath the pin or roller, 86, permitting the spring, 7 1, to force downward the lever, 73, and movable electrode, 70, to close the circuit through solenoid, a l, and thus cause the bed, 2, to be forced upward to press the folded blank between the bed and the infolders, as above described.

The upward movement of the shaft, 27, which is thus caused in raising the bed, 2, causes the arm, 31, on said shaft to engage a trip-lever, 92, fulcrumed at 93 upon the frame of the machine, causing said lever to engage the dog, 95, and force the same out of engagement with the rod, 57, thus releasing the lever, 51, to the action of sprin 55, which immediately causes the electrode, 50, to be withdrawn to open the switch, 46, and thus to deenergize both solenoid, 19, and solenoid, 35.

The operation of the machine is as follows:

A blank having been placed. upon the bed the operator presses downward with the foot upon the foot-rest, 60, which operation forces upwardly the rod, 57, and'forces the lever, 87, out of engagement with the dog, 79, the notched portion of the dog thereupon immediately engaging the pin, 82.

The upward movement of the rod, 57, by engagement with the dog, 95, actuates the lever, 51., to close switch, 46, thus energizing solenoid, 1.9, and thereby causing the templet to be forced down upon the blank on the bed as above described.

The downward. movement of the templet is accompanied by a downward movement of the rod, 15, which forces the contact, 62, against the contact, 63, thus closing the circuit through solenoid, 35, energizing said solenoid to cause the inward movement of the infolders, as above described, the infolders thus inturning the edges of the blank over the edge portions of the templet.

The notched portion of the dog, 79, having been drawn into engagement with the pin. 82, by the initial downward pressure of the foot-rest, 60, the movement of the arm, 32, which is caused by the movement of shaft, 27, in accomplishing the inward movement of the infolders, operates the slide-bar, 77, to withdraw the cam, 76, from beneath the pin or roller, 86, thus permitting switch, 67, to be closed by the springinduced downward movement of lever, 7 3, and electrode, 70. The solenoid, 1 i, being thus energized forces the pressing lever, 83, upward to raise the bed, 2, to press the folded blank between the bed and the infolders in the manner above described.

The upward movement of the shaft, 27, which accompanies the upward movement of the bed causes the trip-lever, 92, to dis-,

engage the dog, 95, from the rod, 57, whereupon the switch, 46, is automatically opened, as above described thus deenergizing the solenoids, 19 and 35, as soon as the operation of pressing the blank begins.

The pressing of the blank can be continued as long as the foot-rest, 60, is held depressed enabling the operator to press the blank as long as he deems advisable, and this without waste of electrical energy which would occur if the solenoids, 19 and 35, were permitted to remain in circuit during the pressing operation.

The pressure of the bed upwardly against the infolders is resisted by blocks, 96, fastened to the top of the machine overhanging the respective infolders.

It will be understood that the infolders are thus pressed against the blocks, 96, with suflicient force to prevent their withdrawal under the influence of the spring, 97, until the bed pressure is released. The infolders will, in turn, by overlapping the templet prevent the templet from being raised by the spring, 12, until the infolders are withdrawn.

Upon the completion of the pressing operation, the operator by raising his foot releases the foot-lever, 59, permitting the bed to drop until the bed supporting frame, 24-, rests upon the posts, 36. The bed pressure being thus released, the infolders are automatically moved outwardly by the spring, 97, permitting the templet to be raised by means of the spring, 12.

Releasing the foot-lever, 59, also causes the immediate operation of the lever, 87, which forces the dog, 79, out of engagement with the pin, 82, thus releasing the slide-bar, 77, to the action of the spring, 85, which causes the cam, 76, to engage the pin or roller, 86, thereby raising the lever, 7 3, and elect-rode, 70, to open the switch, 67.

The eccentrics, 11, are connected with the respective infolders by means of eccentricstraps, 104i, and the eccentrics, 11 are similarly connected with the respective infolders, by means of eccentric-straps, 105.

Each of these eccentric-straps has a member, 106, overhanging the respective infolders and provided with an opening, 107,

through which a screw-bolt, 108, freelypasses, said screw-bolt fitting a similarly threaded opening in the infolder. Said screw-bolt also passes through a clampplate, 109, which overhangs the eccentricstrap member, 106, and thereby serves to securely clamp the eccentric-strap to the infolder. This manner of connection affords a ready means for adjustment of the infolders relatively to the respective eccentrics, as. by loosening the screw-bolt, 108, the position of the infolder can be adjustably changed with relation to the eccentric-strap and the parts then securely clamped in the adjusted position by tightening said screwbolt.

The slideways, 10 and 10 for the rod. 10, are preferably formed integral with the respective eccentric straps, 105, as shown.

What I claim as new and desire to secure by Letters Patent is 1. In a machine of the class described and in combination, a frame having a top; an infolder movable inwardly and outwardly over said top; aneccentricfistrap connected with said infolder; a rotatory shaft extending vertically throughisaid top projecting above the plane of said eccentric-strap; means located beneath said top for imparting rotative movement to said-shaft; an eccentric within said eccentric-strap having a sleeve surrounding said shaft; above the eccentric-strap; and means whereby said sleeve can be fixed to said shaft in different positions of rotative adjustment.

2. In a machine of the class described and in combination, a. frame having a top; a pair of infolders movable inwardly and outwardly over said top; eccentrics for operating said infolders; eccentric-straps connecting the infolders with the respective eccentrics; means for rotatively moving said eccentrics; and a slide-connection between said eccentric-straps in longitudinally slidable relation to one of said straps.

3, In a machine of theclass described and in combination, a bed; a templet; a pair of corner-infolders and an intermediate in folder cooperative with the same side of the templet; eccentrics for moving said corner-infolders inwardly and outwardly through arcuate paths; and means for movsaid intermediate infolder inwardly and outwardly independently of said corner-in-. folders, said means including cams in fixed relation to the respective eccentrics.

4:. In a machine of the class described and in combination, a bed; a templet; a. pair of corner-infolders and an intermediate in folder cooperativewith the same side of the templet; a pair of rotatively mounted shafts; eccentrics carried by the respective shafts for moving the corner-infolders inwardly and outwardly in arcuate paths; and means for movin said intermediate infolder inwardly and outwardly independently of said corner-infolders, said means including cams carried bythe respective shafts, said cams and said eccentrics being adjustably mounted with relation to the respective shafts and to each other.

5. In a machine of the class described and in combination, a bed; a templet; apair of corner-infolders and an intermediate infolder cooperative with the same side of the templet; a pair of rotatively mounted shafts; eccentrics carried by the respective shafts for moving the cornerinfolders inwardly and outwardly in arcuate paths; a pair of levers connected with said intermediate infolder for moving the same inwardly independently of the corner-infolders; and cams on the respective shafts engageable with said levers respectively,

6. In a machine of the class described and in combination, a bed; a templet; a pair of corner-infolders and an intermediate infolder cooperative with the same side of the templet;,means for operating said cornerinfolders; means for operating said intermediate infolder independently of the corner-infolders; and an automatically adjustable guide for said intermediate infolder.

7. In a machine of the class described and in combination, a bed; a templet; a pair of COI-IIQI'r-IIIIEOICIBI'S and an intermediate in folder cooperative with the same side ofthe templet;.eccentric mechanism whereby the corner-infolders are moved inwardly and outwardly in arcuate paths; means whereby said intermediate infolder is moved inwardly and outwardly independently of said corner-infolders, said intermediate infolde! being provided with a slideway extending in the direction of its inward and outward movement; and a slide-bar engageable with said slideway and pivotally mounted at its are fixed to the respective shafts'with capability of rotative adjustment thereupon; cams adjustably fixed upon the respective shafts above said. eccentric-sleeves; and means whereby said, cams are caused to move said intermediate infolder inwardly independently of the corner-infolders 9. In a machine of the class described and in combination, a corner-infolder; eccentric mechanism for actuating said corner-infolder; an operating member; a rotatory member; link-connections between said rotatory member,1 and said eccentric mechanism and said operating member respectively; and means whereby one of said link connections can be connected with said ro tatory member at different distances from its axis of movement whereby the length of movement of the eccentric mechanism can be varied' ill). .ln a machine oi? the class described and in combination, a bed; a ten plet' means tor inovin the templet toward and from the bed; an it lder movable inwardly and out wardly over the bed; means tor moving said inlolder inwardly and outwardly; means including a solenoid for causing a relative pressing movement between the bed and the infielder; a switch controlling the circuit whereby said solenoid is energized; and means whereby said switch is automatically closed by the inward movement of the infolder.

11. in a machine oi the class described and in combination, folding and pressing elements comprising a vertically movable bed, a templet movable toward and -from the bed, and an infolder movable inwardly and outwardly over the bed, one of said elements con'iprising the bed and infolder being capable of a pressing movement toward the other; means, including a solenoid, for actuating each of said elements in the operation of folding and pressing a blank; a 2.0 actuating member unoer the control the operator of the machine; and means whereby operation of said prime actuating member automatically causes the means for actuat said elements to successively move the tcmglet toward the bed, move the infolrler inware over the edge of the templet, and cause a relative pressing movement between the bed. and the intolder.

1 ln a machine of the class described and in combination, a bed; a templet movable toward and from the bed; an inf-older mo able inwardly and outwardly over the bed; a prime actuating member under the control of the operator of the machine; means whereby operation of .aid prime actuating member causes the templet to be moved toward the bed; means whereby the movement oi? the templet toward the bed ca the infolder to be mov d inwardly over the edge of the templet; and means whereby the inward nmvement ot the in- Tl'older automatically causes a 3" I pressing movement between the folder.

.325. Ina machine of the class described and in combination, a bed; a templet movable toward and from the bed; an intolder movable inwardly and. outwardly over the bed; a prime actuatin member under the control of: the operator of the machine; means whereby operation of said prime actuating member causes the templet to be moved tor-card the bed; means whereby the movement oi the templet toward the bed causes the infolder to be moved inwardly over the edge of the templet; means, iir eluding a solenoid, for causing a relative pressing movement between the bed and the intolder; a switch controlling the circuit whereby said solenoid is energized; and means wl'iereby said switch is automatically closed by the inward movement oi the infolder.

H. In a machine of the class described and in combination, a bed; a temglet move toward and from the bed an infolder movable inwardly and outwardly over the bed; means, including solenoid, for moving the templet toward the bed; separate means, incliuling a solenoid, for moving the int'older inwardly; separate means, including solenoid, for causing a relative pressing movement between the oed and t infielder; a switch controlling the circuit whereby said first-mentioned solenoid is energized; means under the control of the operator of the machine for closing said switch; a switch controlling the circuit whereby said second-mentioned solenoid is -iergized; means whereby said last-mentioned switch is automati ally closed by the movement of the templet toward the bed; a switch controlling the circuit whereby said third-mentioned solenoid is energized; and means whereby said last-mentioned switch is automatically closed by the inward movement of the infolder.

15. In a machine of the class described and in combination, a bed; a templet movable toward and from the bed; an infolder movable inwardly and outwardly over the bed; means, including a solenoid, for moving the templet toward the bed; separate means, including a solenoid, for moving he infolder inwardly; separate means, including a solenoid, for causing a relative pressing movement between the bed and the iniolder; a switch controlling the circuit whereby said first-mentioned solenoid is energized; means under the control of the operator of the machine for closing said switch; a switch controlling the circuit whereby said second-mentioned solenoid is energized; means whereby said last-mentioned switch 1's automatically closed by the movement of the templet toward the bed; a switch controlling the circuit whereby said thirdmentioned solenoid is energized; means whereby said last-mentioned switch is automatically closed by the inward move ment of the iniolder; and means whereby aid first-mentioned and second-mentioned solenoids are automatically deenergized by said pressing movement.

16. In a machine of the class described and in combination, a bed; a te'mplet movtioned switch is automatically closed by the inward movement of the infolder; and means whereby said first-mentioned switch is automatically opened by said pressing movement. 7

17. In a machine of the class described and incombination, a bed; a templet movable toward and from the bed; anini'older movable inwardly and outwardly over the bed; means, including a solenoid, for moving the templet toward the bed; separate means, including a solenoid, for moving the iniolder inwardly; separate means, includ ing a solenoid, for causing a relative'press ing movement between the bed and the infolder; a switch controlling the circuits by which said first-mentioned and said second mentioned solenoids are energized; a normally open switch in the circuit between said first-mentioned switch and said secondmentioned solenoid; means under the control of the operator of the machine for closing said first mentioned switch; means whereby said secondmentioned switch is automatically closed by the movement of the templet toward the bed; a switch controlling the circuit whereby said third-men tioned solenoid is energized; means whereby said last-mentioned switch is automatically closed by the inward movement of the infolder; and means whereby said first-mentioned switch is automatically opened by said pressing movement.

18. In a machine of the class described and in combination, a bed; a templet moi able toward and from the bed; an infolder movable inwardly and outwardly over the bed; means for moving the templet toward the bed; meansincluding a solenoid, for moving'the infolder inwardly; a switch controlling the circuit whereby said solenoid is energized; means for closing said switch; means for causing a relative pressing movement between said infolder and said bed; and means whereby said switch is automatically opened by said pressing move: ment.

19. In a machine of the class described and in combination, a bed; a templet movable toward and from the bed; an infolder movable inwardly and outwardly over the bed; means, including a solenoid, for moving the templet toward the bed; means, including a solenoid, for moving the infolder inwardly; a switch controlling the circuit whereby said first mentioned solenoid is energized; means under the control of the operator of the machine for closing said switch; a switch controlling the circuit whereby said second-mentioned solenoid is energized; means whereby said last-mentioned switch is automatically closed by the movement of the templet toward the bed; means for causing a relative pressing movement between the bed and the infolder; and means whereby both of said solenoids are deenergized by said pressing movement.

20. In a machine of the class described and in combination, a bed; a templet movable toward and from the bed; an infolder movable inwardly and outwardly over the bed; means for moving the templet toward the bed; means for moving the infolder inwardly; means, including a solenoid, for causing a relative pressing movement be tween the bed and the infolder; a switch controlling the circuit whereby said solenoid is energized; means, including an actuating memberunder the control of the operator of the machine, whereby said switch is closed; and means whereby said switch is automatically opened by the release of said actuating member.-

21. In a machine of the class described and in combination, a bed; a templet movable toward and from the bed; an infolder movable inwardly and outwardly over the bed; means for moving the templet toward the bed; means, including a solenoid, for moving the infolder inwardly; a switch controlling the circuit whereby said solenoid is energized; means, including an actuating member under the control of the operator of the machine, for closing said switch; means, including a solenoid, for causing a relative pressing movement between the bed and the infolder; a switch controlling the circuit whereby said last mentioned solenoid is energized; means whereby said lastmentioned switch is automatically closed by the inward. movement of the infolder; means whereby said first-mentioned switch is automatically opened by said pressing movement; and means whereby said secondmentioned switch is automatically, opened by the release of said actuating member.

22. In a machine of the class described and in combination, a bed; a templet movable toward and from the bed; an infolder movable inwardly and outwardly over, the bed; means, including a solenoid, for mov ing the templet toward the bed; separate means, including a solenoid, for moving, the infolder inwardly; separate means, including a solenoid, for causing a relative pressing movement between the bed and the infolder; a switch controlling the circuit whereby said first-mentioned solenoid is energized; means, including an actuating member under the control ofthe operator of the machine, for closing said switch; a switch controlling the circuit whereby said second mentioned solenoid is energized; means whereby said last-mentioned switch is automatically closed by the movement of the templet toward the bed; a switch controlling the circuit whereby said third-mentioned solenoid is energized; means whereby said last-mentioned switch is automatically 10 closed by the inward movement of the inmentioned switch is automatically opened 1 by the release of said actuating member.

In testimony whereof I have hereunto set my hand this l lth day of September, 1917.

WALTER J. BEATTIE.

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