US971905A - Sheet-trimming and edge-folding machine. - Google Patents

Description

H. L'. LEILIGH' &.J. P. BURGER. SHEET TRIMMING AND EDGE FOLDING MACHINE.

APPLIUATION FILED DB0.1 3,'190 9. I 905. Patented op,4,1910.

4 SHEETSSHEET 1.

INMZNTURS 1 VWTNESSE'S.

H. L. LEILICH & J. P, BURGER. SHEET TRIMMING AND EDGE FOLDING MACHINE. APLIGATION mum D130. 13, 1909.

atentad Oct. 4, 1910.

Z- 4 sums-sum 2.

i i i VVYTNESSEZS. JNI/EN R 3,

' flaw *flZwa H. L. LEILICH & J. P. BURGER. SHEET TRIMMING ANDVAEDGE FOLDING MACHINE. APPLICATION FILED DEO.13,1909.

971,905, Patented 0013.4, 1910.

4 S HEETSSHEET 3.

WXTNESEESE JMNTURS; v I fimui,

H. L. L EILICH& J. P. BURGER. SHEET TRIMMING AND EDGE FOLDING MACHINE.

APPLIOATION TILED DBO. 13, 1909.

- Patented Oct. 4, 1910.

. asnsmsfsnm UNITED STATES PATENT OFFICE.

HENRY L. LEILICH AND JOHN P. BURGER, 0F DELPHOS, OHIO, ASSIGNORS TO THE DELPHOS MANUFACTURING COMPANY, OF DELPHOS,QOHIO, A CORPORATION OF OHIO.

SHEET-TRIMMING AND EbGE-FOLDING IlWZAC HIIQTE.

Patented Oct. 4, 1910.

Application filed December 13, 1909. Serial No. 582,759.

To all whom it may concern:

Be it known that we, HENRY L. LEILIGH and JOHN P. BURGER, citizens of the United ()ur invention relates to sheet metal work.

ing machines, and particularly to machines for trimming and folding the edges of sheet metal or the like to adapt the interlocking of the edge of one sheet to the correspond I ingl fol ed edge of another sheet. T e object of our invention is the provision of a machine of this class which is simple, eiiioient and rapidin its operation, and automatically operative to act on a strip of sheet metal or the like to trim and form successive folds in an edge thereof, whereby to minimize the expense incident to the trimming and folding of metal strips andenhance the practicabilityand commercial.

value of machines of this nature.

A further object of our invention is'the provision in a machine of this class of means for automatically stamping each sheet operated on with any desired matter or information, thus obviating the necessity of a separate operation for such pur ose.

The invention is fully described in the following specification, and while in its broader aspect such invention is capable of embodiment in. numerous forms, a preferred embodiment of the same is illustrated in the accompanying drawings, in which,-

.Figure 1 is aside elevation of the machine in its normal at rest position, with different internal parts shown in dotted lines. Figs. 2

.and'3 are rear andfront elevations, respeetively, of the same; .Fi'g. lis a top plan view of the same. Fig. 5 is a view of the cams showing their relative arrangement. Fig. 6 is a corner portion of a sheet of work after being trimmed. Figs. 7 and 8 are successive stages of the folding operation of the edge of a sheet, and Fig. 9 is a cross section .of portions of the work trimming, and clamping parts. Referring to the drawings, 1, 1 designate the two side standards of the machine frame,

folding which are braced by a frame part 2, and r1 idly connected near their I a' 'orizontal table plate or *part- 3 and forupper ends by wardly of such table plate by a knife-carrying table part 4. .Thl's latter table part has its upper surface in a commomplane with the table 3, and is shown in the present instance as resting for horizontal adjustment on ledges or shelves 5 formed on the inner sides of the standards, being held in adjusted position thereon by screws 6, which. Work thron h the t. le part. Ajknife 7 is adju stably fixed to the forward edge of the table part 4 by screws 8 and 9, the latter of which thread upwardly th'rou h a ledge 10 on the forward side of said tab e art and bear against the lower edge of the knife, see Fig. 3. f

The standards 1 at the ends of the table parts 3, 4 are continued above such parts and each is provided with vertical guide- -ways 11 and 12, in the former of which the ends of a cross-head13 are mounted for vertical reciprocatory movements. TA knife 14 is carried by this cross-head for coijperating with the lower fixed knife 7, on a .downstroke of the cross-head, to trim the interposed edge of a strip of work. Gagestops 15 for the work are carried by the cross-head 13 and project down in advance 7 of the table-part 4, as shownin Fig. 3. The

knife 14- is preferably set on an incline to have a more eiiioientaction. 16 designates a secondeross-head which'is disposed above theta-hie 3 and has its end mounted for vertical movements in the guide-ways 12'. This cross-head has its base transversely broadened to form a pressure foot adapted to cotiperate with the table 3 to clamp work thereto, and has a toe 17 whichtapers forwardly to a point, which when the foot isv lowered substantially registers with the forward edgeof' the table 3, as shown in Fig. 9. The cross-head0rclamping member 16 is normally held elevated by compression springs 18 and has its lowering or clamping movements actuated by mechanism hereinafter described. v

Disposed at the roar of the table 3 is a horizontal reciprocatory work holding table slots in the ledges and thread into 1.9, which has its surface in a plane with the table 3 and its ends mounted'for sliding movements in guide-Ways 20, mounted on the rear top portions of thestandards 1. A. U-frame 21 has its loop portion or cross bar disposed above the forward end of the table 19 and its arms extending rearwardly and pivoted as at 22, to cars rising from the table ends adjacent the rear edge thereof, see Figs. 1, 2 and 4. The forward .end of the frame 21 is normally held elevated above the table by the action of compressionsprings 23 disposed therebetween. Yieldingly carried at the underside .of the for- Ward end of the frame 21 is a pressure-foot 24, which has guide-pins 25 projecting upwardly therefrom through registering apertures in the cross-bar of. the frame, the lowering movements of Whichpins relative to the cross-bar are limited by cotter-pins 26, see l igs. 1 and 4. The foot 24 is held yield} ingly spaced from said crossbar by compmssi'on-sprhigs 27, Fig. 1. A boss 28 rises fronreach arm of the frame 21 and has its "top formedwith a cam, surface 29, with which a roller .30 carried at the end of a superposed arm 31 coacts.

The arms 31 are carried bya rock-shaft 32, which is disposed above the-frame 21 and has itsends jourthe ends of the table 19. this shaft, as hereinafter described, in a dinal ed in bearing standards 33 rising from on a'rocking of rection to throw the arms 31' forward, the coaction ofthe rollers 30 with the cam-surfaces 29 causes a lowering of the forward end of the frame 21 to cause the pressurefcot 24 to yieldingly cooperate with the -tablel9 to grip an interposed strip of work.

34designatesan oscillatory folding mem ber, which is disposed in the space between the tables 3 and 4 andhas-its ends provided --witl 1 trunnions 35 journaled in the stand ards 1.; The member34 in the present instance is shown as comprising in cross-section, a quadrant'or quarter of a shaft, the

flat or raidal lines ofwhich radiate from the axis of thetrunnions 35. Thevmember 34 is so mounted that one of its flat or radial lines is normally vdisposed. in th e'plane of the tables 3, 4 and serves as the folding sur- .'face of such member, while its other radial in the frame standards above the shaft 36 line extends downwardly, as shown in F ig, 9. This shaft or folding member has its folding movements actuated by mechanism.

hereinafter described.

i .lvlounted transversely of the machinewi-th its BHdSJOHI'Im'lEd in the lower, po rtions. of

the frame standards 1 is a main drive-shaft 36, on one endof which without the frame is a belt-piilley-37. A shaft 38 is mounted parallel therewith and carries a loosepinion 39, which meshes with and is driven by, a

-smaller pinion 40 on. theshaft 36. Fixed to the shaft 38 at one side of the pinion 39 is a fixed collar 41 carrying a pin clutchmember 42, which is normally held out of I the headed end of the pin 42 to effect its release from the pinion hub at. they end of a completed revolutionof the shaft in a manner well known in the art. The shaft-38 also has a set of cams 43 and 44 on each end: thereof Without the standard 1, a cam 45 adjacent the inner side of each standard,

and a cam 46 intermediate said latter cams.-

The cams 43 are intended to. actuate the movements of the cross-head or work clam'ps ing' member'l6 and for this purpos'e'each acts on a roller 47 carried at the lower end of an associated. rod or pitman 48, which attaches at its upper end toast u'd- 49".pro-

'jecting from an end of the cross-head and has its lower end pivoted to the free end an arm 50, which pivotally projects from a stud 51 on the standard 1.

The cams 43 are adapted in the present instance to efl'ect a lowering of the member 16 to clamp the-work at substantially the end of a half rev'olutionof the shaft3$ and to maintain such member depresseduntil the remainder of the revolution ofthe shaft is nearly completed, except for a 1 slight raising movement during the period;

of jdep'iression due to the rollers-47 working into recessesor depressions a in the neutral or concentric surface 6 of the cams, for the purpose hereinafter described.

The camsv 44 are for the purpose of actu-fating the rocking movementsfof the rockshaft 32 to effect clampin and releasing" movements of the pressureoot 24; To this end said cams are-made pointed as shown and each acts" on a roller 52:. carried at an end of alever 53,'which is fulcrume'dlto. a

frame stud 54 and has its other-end-connected by a link or bar 55 to a crank-arm- 56 projecting from the rock sh-aft"32.-' It v is thus apparent that on a raising of the roller ends of the lever 53 by the coaction of'the cams 44 therewith, which is timed to take place at the beginnin' of a revolutioniof" .the shaft 38, therock-s aft 32 willbe' rocked to throw the rollers 30, carried by the emis: 31, into position toefiect a clampingI aetion'-'-"= of the U-frame 21, andhold theiwork to the tab e 19.

ressure-ifoot Toggle Jinks- :57, 57 connectthe framestuds 51 with-the rear end-portiohsof the: levers 53 at each'sideof the machineyand',

one ofeach set carries a roller 58 atits'inner end, which, on a clamping movement of'theassociated lever 53, is thrown forwardvinto' the path of movement of the pointed end of the cam 4.4 .inposition to be'enga'ged .by such cam when near'the' completion of, its:

revolution. This engagemei'it of the cams 14 with the rollers 58 of the to gle sets efi'ects a straightening movement ot the'toggles and a consequent positive releasing movement of the clamping parts, as is ap parent.

The cams/t5 are intended to control the rearward reciprocatory movements of the work-holding table 19 through the medium of the vertical rock-arms 59, carried loosely at opposite end portions of a shaft 60, connecting the frame standards, and the links or bars (31, which wnnect the upper ends of said arms with lugs 2 projecting from the under side of the table 19, as shown in Figs. 1 and 2. A roller 63 is carried at the forward side of each arm 59 and c'oacts with the associated cam. Each cam L5 is formed with the cam surfaces 0, d and the two intermediate neutral surfaces 6, 7', which arein' concentric planes, with the former more remote fromthe cam axis, whereby movements are imparted to the table 19 as jao hereinafter fully described. Theforward unovements of the table 19 are caused by verticallydisposed arm 68, mounted loosely on the shaft 60 ,whereby to rock said arm at predetermined intervals to impart rocking movements to a rocksshaft 69 through the medium of a linlr or bar 70,-attached to the free end of-said arm, and a rock-arm 71 on the shaft 69, as shown in Figs. 1, 2 and 3. The shaft 6.9 is journaled in the frame standards and above the plane of the. shaft 38 andcarries an arm 72; at each end'without said 'standards. The arms. 72 extend upwardly from the shaft and ea'chterminates at its upper end in a toothed segment 73 which meshes with a pinion. 74: carried at the outer.

' end of the adjacent trunnion 35 of the folding member 34. The cam L6 is formed on 'one si de.thereof with the two radial projectlons g and h, which, on a revolution of [such cam, acton the rock-arm ()8 to impart successive rocking movements to the folding' member 34 to first form the initial fold int the edge of a strip of work A and then to form the second or successive fold j therein, as shown'in Figs. 7 and 8. As the first fold i is pressed more closely to the plane of the work-strip than the subsequent fold j lone toefi'e'ct'a and consequent greater degree of rocking of as shown, the projection g is slightly longer than the projection h of the cam to adapt greater throw of the arm 68,

.lhe folding member 34:, than the other. The

arm 68 has its forward movements caused by a contraction-spring which attaches at its rear end to such arm and at its forward and isral'sed at each revo end to the table 3, thus tending to normally maintain the folding member 34 with its folding surface in a plane with the top surfaces of the tables, 3, 4 and 19.

Projecting downwardly from'the ends of the cross-head 13 at the sides of the machine frame are rods 76, which carry straps 77 at their lower ends for encirclin eccentries 78 on the ends of a snbjacent's aft 79. This shaft is journaled in the frame standards and carries a loose pinion 80 in mesh with the pinion 39 on the shaft 38, and also carries a single-revolution type of clutch mechanism -'81 of similar construction to the clutch 4142 on the shaft 38 whereby on a release of the clutch member thereof the revolution to t e shaft 7 9 ends consequent down and up-strokeof the cross-head .13. The release member 42, which controls the actions of the clutchpin 42, is of T-form with one arm coacting with the clutch 41- pinion 80 is en aged to communicate a single 42, as previously described, and its other arm coacting in a similar manner with the pin 82 of the clutch mechanism 81,,whereby'a raising of such release member efiects a simultaneous release of both clutches to engage their respective pinions.

' The member 42 is attached to the upper end of a'rod 83 ,-'which is guided for vertical movements'by'a standard 84, see Figs.

2 and 3, and is normally. held in lowered position by a compression-spring 85, which encircles saidrod and has its ends thrust against a shoulder 86' on such rod and a.

part of the guide standard 84, Thelo'wer end of the rod 83 bears on an arm 87 pro jecting horizontally from a rock-shaft 88,

which is journaled in the lower portion of one of the standards 1 and a bearing-block 89, and has a fo'ot treadle 9O pro3ecting therefrom in opposition to the arm'87.

91 designates a brake-strap which con- 'nects and encircles brake-disks (not shown) mounted on the shafts 88 and'79, thus tending to stop the rotation of such shafts on a release of the clutch mechanisms 4=1.42 and 81 from the respective pinions' 37 and 80, I

Mounted beneath the table 3 in one. frame standard 1 and a" pedestal bearing 92 .is a shaft 93, whichjcarries a pinion 94 in mesh with a smaller Figs. 2 and 3., The shaft 93 also carries a cam 96 on which a roller 97 carried at the lower end of a die-block 98 rides. The die.

block 98 worksathrough an opening in the table 3 beneath? the clam ing member 16, iiition of the cam 96 to cause it ,to act in opposition to such clamping member to impress or stamp any desired information on the work. In the use of ou'r machine, the operator feeds a sheet (if-metal. or other work to be operated on forward between the table 19 and pressure-foot 24 and. the jt-a'bl-e 3 and pinion 95 on the shaft 38, see

i so.

.clampin member 16 until stopped by contact with the gages carried by the crosshead' 13. The operator then depresses the treadle 90 to raise the clutch controlling member 42- to effect a simultaneous release of the clutch-pins of both clutches 41-42 and S182 to permit such pins to move into engagement with therespective pinions 39 land 80 whereby to rotate the shafts 38 and .79 with such pinions. As the pinio'ns 39 and Y80 are in proportion of two to one and the pinion 39 serves as the drive, it is apparent that the pinion 80 will have acomplete revolution imparted thereto, 1 whereby to-lower and raise the c'rosTs-head'l3 to trim the'forward edge of the work, while the pinion 39 is making a half turn. diatelynpon the commencement of a single rotation of the shaft 38, or substantially so,

and prior to the trimming operation, thecams 44 at the ends thereof. act on the rollers 52 carried at the ends of'the levers 53 to effect movements of such levers in the proper direction to lower the bars or links 55 and rock .the shaft '32 to impart a lowering or clamping movement to the forward end of the U-fram'e 21 and pressure-foot 24 carried thereby, whereby to cooperate with the table 19 to firmly grip the work. Upon a trimming of the edge of the work which takes place at approximately the" completion of a quarter revolution of the shaft 38", thecam surfaces "0 of the two cams 45move into contact with the rollers '63 of the arms and effect a movement of the-\vork-holding table -19 to the limit .of its rearward movement through the medium of the links or bars 61, which position the" table maintains for a predetermined length of'time by reason of said rollers operating-on theneut ra-l surfaces of the cams 45. The-rearward movement of the table 19,'which is'thus efi'ected, is sufii cient to Withdraw'the work A from'the' trimming parts until its trimmed edge projects a desired distance'be'yon'd' thenose 17 of the" clamping member 16 for the formation of the fold .2 therein. Atthispoint the'cycl'e' of operations'the'cams'43 act on thej'rollers .47 to lower the "rods '48. and attached clamping" member--16 to clamp thework to the" table? immediatelytothe'rear'qf thef old' ring member-"34. As soon asthe"work has been clamped by "the member 1-6 {thetfoldingmember'34iS estimatedtoio i l d edge 'of the-*workover thetoe "1 of sai clampi'nggmember' due to the arm g of the cam eca tingion the arm 68 to im part a forward rocking movement to the segment arms 72 through 'the'' medium "of the rock-shaft G9, link'70and rock arnr'i 1. As-the roller on the; rock-arm- 68 passes: over the arm 9 of the cam '46 it drops into a. depression 7' of such cam to permit the return of the E(-ld iugmiember 34- to its'noriual position under the influence .of the springs 75.

Immeneous'with such action the claniping meniber 16 instantaneously released from the work and again lowered into clamping engagement therewith due to the r0 lers' 47 at the ends of the rods 48 working. to the re ccsses a in the neutral surfaces 7) the cams 4-3. the clamping member 16 from the work, the rollers 68, carried by the arms "59 of the mechanism controlling the movements of the table 19, drop to the neutral surfaces 7 of the cams 45 thus permitting the forward move-- ment of the table; 19 under the influence of the springs 5 and effecting a forward move.-

m'ent of the work relative to the folding parts. This movement is so regulated that a sufficient length of the work is projected beyond the toe of the clamping member 16 to provide for the subsequent orsecond fold j therein. The folding member 34 is now oscillated to form the fold j in the work due to the second arm it of the cam 46 coacting with the roller carried by the arm 68 of the mechanism .for operating the folding men'iber. The degree of movement, however,

of the member 34 in the forming of this latter fold is not so great as themoveinent thereof during the forming of the first fold, due -to the arm 71- being shorter than the arm 9, thereby imparting a fold to the work; as shown in Fig. 8 Upon thecompletion of this fold, the cams 43 have moved to a point to permit afireleaseof the clamping member 16, the cams 45 then release the mechanism actuating the rearward movements of the table 19 to permit such t-able,

-under,. theinfluence of the springs 65, to moveto theiendofits forward st-roke,'and

the cam 44 then strikes the rollers 58 carried by the toggle 'links'57 to effect a partial straightening of such'links and a consequent positive releasing movement of the rollers movement of such frame under the influence '.of the springs 23 is i permitted. This coml During this instantaneous-,;release' of 3. 0"on the cam surface 2 9 of theU clamping frame 21 wherebyan upward orreleasing plet es the cycle of operations of the machine, I

the parts being in the position in which they. were before 'theftrea'dle 90 was depressed and permit-tinge withdrawal of the folded .work

therefrom and the insertion of either the opposite end of such Work sheet orthe end of another sheetto be acted At a predeterminedp'ointin of operations orwhen the member 16 is lowered in .c -.lampin position, the cam 96 carried by the shaft 93 acts on fthe' roller 97 at the lower end of the die block 98 to effect at raising of such die to stamp the'name' ofthebomp'any putting out the work, or any other "desired information, on the Worksheet, such die acting in opposition to the clamping memher 16 in such stamping operation. In the present instance, the cam 96 is adapted to Simultatact on the die at each second cycle of opera pintions of the machine due to the driving .rlven ion 95 being one-half the size of the pinion 94 on the shaft 93. This is done to back to folding position, clamp the same insuch position, form the initial fold therein, then release the sheet and move it forward in position for the next fold, after which the final fold is made and the parts then returned to their normal positions, leaving the folded work in condition to be removed from the machine and replaced by another piece of work to be operated on. These different operations being entirely automatic and following one another in rapid succession )rovides a machine, which, with the .attenc ance of a single operator performs the .work for which it has heretofore been necessary to employ several workmen and very materially increases the output due to the rapid operation of the same.

We wish it understood that our invent-ion is not limited toany specific construction or arrangement of the parts of the same except in so far as such limitations are specified 1n the claims.

Having thus described. our invention, what we claim as new, and desire to secure by Letters Patent, is,

l. Ina machine of the class described, the combination with edge folding means, of mechanism for automatically gripping the gWOIk and moving it for successive folds.

2. In a machine of the class described, the combination with edge folding means, of mechanism automatically operative to grip the work, move it for successive folds and then release it.

3. In a machine of vthe class described, the combination with edge folding means, of a reciprocatory work gripping part at one a side of such means, and mechanism opera.-

tive to cause said part to grip work fed thereto, move the same to receive successive folds and then to release the work.

' 4. In a machine of the class described, the combination with a frame, and edge folding means carried by the frame, of a reciproczt tory part mounted atone side of the folding means, means movable with suchpart for. gripping Work fed to the folding means, and inechanisin operative to actuate said gripping means to grip and hold the work during the folding operations, and to move said part and gripping means to place the Work in position to receive successive folds.

5. I n a machine of the class described, the

combination with, work trimming means,

edge folding means spaced from said trimming means, and means associated with the folding means to clamp the work during the folding operations, of reciprocatory means for grlpping the work, and mechanism operative to actuate said reciprocatory means to grip and hold the work during the successive trimming and folding operations, and to move the work from trimming to folding position.

6. In a machine of the class described, the

combination of a frame having a table portion, edge trimming means and edge folding means arranged one in advance of the other along the table top, means adjacent the folding means movable to cooperate with the table to clamp the 'work thereto during the folding operations, movable work holding means, and mechanism operative to actuate the trimming means to trim the Work, the folding means to fold the trimmed edge, the clamping means to cooperate with the table to clamp the work during the folding operation and the holding means to grip and hold the work and to move the work from -cut ting to folding position. 4

7. In a machine of the class described, the combination of a frame having a table'part, work trimming means and work folding means arranged one in advance of the other along such table, a clamping member for cooperating with the table to clamp the work during folding operations, reciprocally movable work holding means, and mechanism operative to actuate the trimming means to trim the work,the folding means to fold the work, the clamping means to cooperate with the table to clamp the work, and the holding means to grip the work and move the same from cutting to folding position and for successive folds.

8. In a machine of the class described, the combination of a frame having a table part, work trimming means and oscillatory edge folding means associated with such table part and arranged'one in advance of the other, a clamping member movable to cooperate with the table part to clamp the work during the folding operations, work gripping and controlling means, and mech anism opcrativein a single cycle of operations to actuate the trimming means to trim.

the work, to oscillate the folding means to form folds in the work, to move the clamping member to cooperate with the table part to grip the work during the folding operation and to actuate the work gripping and controlling means to grip the work and move the from trimming to folding position and for successive folds.

9. In .a'machine of the class described, the

combination of a-frame-having a work sup porting art, trimming means, and an oscillatorv e e folding member associated with such part one-in advance of. the other, a

-member arranged above and movable to clamp Work to such part, a table reciprocally carried by the frame in the plane of such -part to permit the feeding of work over such table, means for clamping the work to such table, and mechanism operative to sequentially actuate the table gripping means to grip the work, the trimming means and folding member to trim and fold an edge of the work, the clamping member to clamp Work to the frame part during the folding operation, and the table and gripping means to move the work for successive operations and then move the gripping means to release the Work.

10. In a machine of the class described, an oscillatory folding. member, means for clamping the work and cooperating with the folding member to form folds therein, and mechanism for intermittently oscillating said member, intermittently moving the clamping means to grip and release the.

work, and to hold the work dui'ing and move the same for successive folds.

11. In a machine of the class described',xa

' revoluble folding member, and cam actuated mechanism for intermittently moving said member to make successive folds and to grip the work while being operated on and automatically move the same to receive such folds. 1

12. In amachine of the class described,

; edge folding means, work clamping means,

and cam controlled mechanism for operating the folding means to make successive folds, .the clamping means to intermittently grip and release the Work and to hold the Work from the beginning to the end of such operations and change the position of the same for the successive folds.

13. In a machine of the class described, a folding member, work clamping means associated therewith, movable work holding means, and cam controlled mechanism for operating the folding member to make successive folds, the clamping means to intermittently grip and release the work and the work holding means to grip and change the position of the work for successive folds.

14. In a machine of the class described, an

oscillatory folding member, 'means for clamping the work and cooperating with the folding member to form folds therein, work holding means, and cam controlled mechanism for intermittently oscillating the folding member, intermittently moving the clamping means to grip and release the work, and acting on the workholding means to grip and change the position of the work for successive folds. y

15. In a machine of the class described, a folding member, means adjacentsuch meml-icr for clamping the .work, reciprocatory work holding means. and mechanism operative to actuate the folding member to table, meanscarried by the table for gripping the work, andmechanism operative tooscillate the said ntember to form successive folds, and to actuate the clamping means to intermittently grip and release the work, the;-

table gripping means to hold the work tionary to the table, and the table to change the position ofthe work for successive folds.

17. In a machine of the class described,

Work cutting means, revoluble folding means, and mechanism for actuating the work cutting means, imparting successive operations to the folding means, and moving the work-from cutting to folding 'posi-- tion and then changing its position for suc- CQSSIVGIOlCiS.

18. In amachine of the class described,

work cuttingmeans, oscillatory worli-iold ing means, work clamping means associated with the folding means, work holding means, and mechanism operative to actuate the cutting means to sever the 'WOl'.l,.i3ilE- folding means to form successive folds therein, the clamping means to intermit tently clamp and release the work,a11d the work holding means to grip and control the movements of the work for the successive cutting and folding operations.

19. In a machine of the class described, work cutting means, wort folding means, work clamping means associated with the folding means, movable work holding means, and cam controlled mechan' in for actuating the cutting means to cut the work, the folding means'to form successiv folds therein, the clamping means to intermittently grip and release the work, and the holding means to grip and control the move ments of the work for the successive cu ting and folding operations.

20. In a machine of the class described, work trimmingmeans, an oscillatory folding member parallel with such means, a table part associated with said member, a clamping member movable to cooperate with said table part to hold the work during a folding operation, a reciprocatory Work gripping part, and mechanism for operating the cutting means to sever the, Work, the folding member to form successive folds therein, the-clamping means to; intermittently grip and release the work, and the gripping means to first grip the work and then to move the: work from cutting to successive folding positions. I

ii. In a. machine of the class described, fixed and movable cutting parts. an oscillatory folding member, clamping means assoice ciated with such member, Work gripping and in the work, to move the clamping means to intermittently grip and release the work,

and the controllingmeansto first grip the Work, then to move the work for successive folding operations, and then to release the same.

22. In a machine of the class described, edge trimming means, edge folding means, clamping means associated with said folding means, movable work holding means, a shaft, clutch controlled means for imparting intermittent single revolutions tosuch shaft, and mechanism operative by a rotation of said shaft to actuate the trimming meansto trim the work, the folding means to form successive folds therein, the clamping means to intermittently grip and release the work, and the holding means to rip and move the work from cutting to folding position and, for successive folds.

23., In a machine of the class described, cutting means, work folding means, a normally released clamping member associated with the folding means, movable work ho1ding means, and cam actuated mechanism adapted in a single cycle of operations to actuate thecutting means to trim the work, the folding means to fold the trimmed edge of the work, the clamping member to clamp the work during the folding operation and then to permit areleasing movement there" of, and the work holding means to gripand control the movements of the work for; the successive operat1ons and then to release the work.

24. In a machine of the class described, a folding men'lher, means associated with saidmemher for clamping the work during the folding operations, movable work holding means, and mechanism operative to impart successive folding movements of different degree to said folding mdmber, and to actuate the clamping, means to intermittently grip and release the workandthe work holding jlllPtlllS to grip and more the \vorl for successive folding operations and then release the same.

In a machineof the class described, an oscillatory folding member, work gripping means associated. with such lnoml'ier,"

'movable work holding means, and. 1nechanism operative to impart successive folding movements of diiferentdegree to said folding member, to actuate the clan'iping means to intermittently clamp "amlaelease the work, and to actuate the, mvhnk; holding means to grip the work and: move the same sis for successive folding. operations and then to release the same. Y

fixed and movable cooperating cutting parts, a folding member disposed adjacent thereto, a clamping member associated with the folding member, slidable work holding means, a shaft, clutch controlled driving means therefor, and mechanism operative by the shaft to actuate the movable cutter part to trim the work, the folding member to successively impart folds of different degree of inclination to the work, the clamping means to intermittently grip and release the work, and the work holding means to grip and move the work into positions for suecessive operations and then to release the same.

27. In a machine of the class described, the combination of Work trimming means, work holding means, and mechanism operative to actuate the cutting means to sever the work and the holding means to grip and retract the Work from the cutting means after the cutting operation.

28; In a machine of the class described,

the combination of Work cutting means, slidable work holding means, and mechanism operative to actuate the cutting movements of said cutting means and to cause said Work holding means to grip the work and retract the same from cutting position after the cutting operation and then to release the work. V

29. In a machine of the class described, the combination of Work trimming means, a slidable table, work grip ing means associ ated with such table, an mechanism operative to actuate the cutting movements of the cutting means, to move said gripping means to cooperate with the table to grip the work, to move the table and gripping means to retract the work from cutting po-' sition after the cutting operation, and to then release the gripping means from the 'Work.

30. In a machine of the class described,

the combination with work trimmingmeans,

work folding means, and work clamping .r'neans associated with the folding means,

reciprocatory work-holding means, and

mechanism operative to act on the work 3i. In a machine of the class described,

the omnbination of Work trinnning means, Work foldingmeans, rec:procatory, orkholding means influenced to nori'nally stand at one position of its movement. and mechanism operative to actuate the trimming means to trim the work, the folding means to fold the trimmededge of the work. and lathe work-holding means to grip the work and to'recede-it fron'iits normal position. to

:retraet the work from (rimming to folding 26. In a machine of'thc class described,

- position.

32. In a machine of the class described, the combination of cutting means, edge folding means, clamping means associated with said folding means, reciprocatory work holding means influenced to normally stand in one position of its movement, and mechanism operative to actuate the cutting means to trim an edge of the work, the folding niea'nsto form successive folds in an edge of the Work, the clamping means to intermittently grip and release the work, and the work holding means to grip the work and to moveit from its ,normal position to retract the work from trimming to folding position and then to permit a predetermined move- I -ment' of said holding means to move the -cams to impart trimming movements, to said trimming means, folding movements to said folding Lmeans, clamplng and releasing movements to sa1d clamping means, and to cause said holding means to grip the work,

retract the saine'from trimming to folding position and then release the work during a single revolution of said shaft.

34. In a machine of the class described. a movable work controlling means adapted to grip the work, an intermittently revoluble shaft, and mechanism actuated by a revolution of the shaft to cause said controlling means to grip the work and impart predetermined movements thereto.

35. In a machine of the class described, the combination ofa reciprocatory work holding p'apt, work clamping means associa'ted'withsuch part, an intermittently revoluble'sha'ft, and mechanism actuated by a revolution of said shaft to operate the gripping means to' cooperate with the workholding means to hold the Work and then to move the work-holding and gripping means to impart predetermined movements to thew,ork'.' v 1 36. In a'machine of the class'described, the combination of reciprocatory work gripping means, an intermittently revoluble shaft, a cam carried by such shaft, and mechanism connecting said cam and means and operative by a movement of the cam to impart predetermined reciprocatory -movements to said means to move the Work.

37. In a machine of the class described, the; combination of a reciprocatory Work holding table, work gripping means carried thereby, an intermittently revoluble shaft,

a cam carried by said shaft, mechanism actuated'by said cam and connecting said cam and work gripping means to impart gripping movements to said means on a revolution of the shaft and then to effect a release of such gripping means, vand mechanism connecting said shaft and table for imparting predetermined reciprocato movements to the table on a revolution of t e shaft.

38. In a machine of the class described,

the combination of a frame, a reciprocatory work cont-rolling part, means associated with such pgrt for gri ping work thereto, a shaft,

two cams onsuci shaft, means cooperating with one of such cams for causin gripping and releasing movements of said gripping means during a revolution of such shaft, means cooperating with the other of such cams for imparting movements to said part p in one direction, and means acting to impart movements to said part in the opposite direction.

39. In a machine of the class described,

the combination of a frame, work holdin means movable in said frame to contro' movements of work being acted 011, means acting on such means to influence such movements in one direction, a, shaft, cams carried by such shaft, means actuatedby one of such cams during a revolution of the shaft to effect a gripping of the Work to such means and a re ease-of the same, and means actuated by another of such cams for imparting'predete'rmined movements to said means in the opposite direction,

" -10; In a machine of the class described, thecombination of a frame, work folding means associated therewith, work grippin and controlling; -means movable in sai frame, a'plurahty of revoluble cams, means actuated by one of said cams at predetermined points in a revolution thereof to effect gripping and releasing movements to to said trimming and folding means, means,

for moving said part in onedirection of its movements, a plurality of cams, means coacting with one of said cams to impart predetermined work gripping and releasing movements to said art, and vmeans coact-' ing with another ofsaid cams to impart Work controlling movements to said part.

42. In a machine of the class described,

the combination of a frame, work folding means and Work clamping means associated]:

with such frame, a work gripping part molymeans, a plurality. of rcvoluble cams,,means Work thereto during the foldingoperations,

mg means, means actuated by one of said the combination with Work trimming means ill'llJi'l rt successive folding movements to said able relative to said folding and clamping for cooperating with one .ofsaid calms to,

impart predetermined folding movements to the folding means, means actuated by-one of said cams to impart predetermined clamping and releasing movements to saidclainp,

cams to cause said part to grip and release Work at predetermined intervals, means coacting With one of said cams to impart predetrn'mined movements in one directionto said part, and meansactiug on said part to more it in the opposite direction.

43. In a machine of theclass described, the combination of a frame, Work trimming means and Work folding means associated with such frame, a part movable relative to said trimming and folding means, an oscillatory Work clainping"member carried by said part, and mechanism operative to impart predetermined movements to said part and member to move 'worlr for successive operations and to clamp and release the Work at predetermined intervals.

44. In a machine of the class described,

and work folding means, of a Work-holding part movable to control the movements of the Work While being acted on by said trimming and foldingmeans, and, mechanism for actuating said part to grip and release Work fed thereto and to move such part to control the movements of the Work for successive operations.

4-5. In a machine of the class described, the combinationof a frame having a Work supporting part, an oscillatory edge folding'member associated With such part, means for cooperating With said part to clamp the means at one side of such part for gripping the Work and moving the same for successive folding operations, and mechanism for imparting successive folding movements to said oscillatory member, moving the clamping member to intermittently clamp the Work to the frame part and release the same for successive folding operations, and to actuate the gripping means to grip the Work during the folding operations and tomove the work to receive successive folds.

elb. In a machine of the class described, a frame having a work supporting part, edge folding means associated with such part, a clamping member movable to. cooperate with said. part to cia mp work diu'ing the folding operation, means for gripping me work and controlling the movements of the same while being acted on, and mechanism operative to foldin means. to intcrnlittentl 1 more the clamping member to clamp the work to the table for each folding operation and then to release the same and to actuate theIiv'vor-lr g, means to grip theworl; WVhllQjlJBli'lg 1-7. In a machine of the class described, the combination of a'frame having ork supporting part, an oscillatory folding member associated with such part, means foi cooperating With said part to clamp thehyorlr during a folding operation, a tablereciprm vcally movable at one side of said part, a

part carried by such table for cotiperating therewith to grip the Work, and mechanism operative to intermittently oscillate said folding member, intermittently move the clamping means to clamp. and release the Work for successive folds and to actuate said table part to cooperate with the table to gripthe Work and move said table and gripping part'to control the movements of the Work 'to receive successive folds. 1

48.111 a machine of the class described, the combination of a frame having a Work supporting part, an oscillatory folding member associated with such part, yieldingly movable clamping means movable to intermittcntly clamp the work to said part and release the same for successive folds, a reciprocatory table movable in the plane of such part, means carried by such table for clam ing Work, and cam controlled mechanism operative in a single cycle of operations to intermittently oscillate the folding member for successive folds, to actuate the clamping means to intermittently grip and release the .Work during the folding operations and toactuate said gripping means to grip the work to said table and to actuate, the table to move the-work to receive successive folds.

a9. In a machine of the class described, a frame having a Work supporting part, edge trimming means and edge folding means associated with such part and arranged one in advance of the other, a member; yieldingly movable to clamp Work to such part, wort gripping means disposed adjacent the edge of said part which is opposed to the trier lning lneans and movable toward and away from said part, means acting on said grip-- ping means "0 yieldingly hold it in one po sition of its movement, and i'ncchanism operative to actuate said gripping means to grip Work and to cooperate with said yielding means to move the work to receive the folds. I l

50. In a machine of the class described, a frame having a work supporting part, means operative Lo'trim an edge of sheet-metal Work, the work trimming and folding parts of said i-Wo means being associated with said table part. and arranged one in advance of ihe other, ncaus operative to FEH(,SSlVQl. V clamp work to said part during the folding operation and release the same, a table re ciprocally movable at a side of the frame part, a c-lan'ip-ing member for cooperating with suehtable to grip Work thereto, means g y acting on the table to normally in one position of its movement, and mechanism operative to actuate said clamping member to clamp the work and to cooperate with said yielding means to move the table to move the Work from cutting to folding position and for successive folds.

51. In a machine of the class described, the combination of a frame having a work supporting part, Work trimming members and an oscillatory Work folding member associated with such part, an element movable to clam-p Work to such part during folding operations, a Work holding and controlling part .movable in such frame, oscillatory means associated With such holding part for clamping work thereto, a revoluble shaft, means for-communicating trimming movements to said trimming members at a predetermined point in a revolution of the shaft,

means actuated by said shaft for in'iparting folding movements to said folding member at predetermined points in a revolution of the shaft, means actuated by such shaft for actuating said clamping elementto intermittently clamp and release the Work, means actuated by said shaft to impart predetermined Work controlling movements to said work holding part during a revolution of the shaft, means actuated by said shaft to in1- part work gripping and releasing movements to said oscillatory means at predetermined points in a revolution of the shaft, and means influencing a movement of said work holding part in one direction.

In testimony whereof, We have hereunto signed our names to this specification in the presence. of two subscribing witnesses.

HENRY L. LEILICH. JOHN P. BURGER. \Vitnesses CARL LIMBRECHT,

JOHN F. LINDEMANN.

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