USRE14931E - Eyeleting-machine - Google Patents

Description

F. L, HARMON.

EYELEUNG MACHINE.

APPLICATIQN FILED UCT.1l,1919.

Reissued Aug. 17, 1920.

14:,93L 4 SHEETS-SHEET E.

WITNESSES: I M1374 I fl HMQ/ ATTORNEY .L. HARMON. EY'ELETlNG-MACHINE.

APPLICATION FILED OCT-11,1919.

- "1% ,5931 4 SHEETS-fiHIZEI 2; I

Reissued Aug. 17,1920.

INVENTOR AfibRNEY WITNESSES:

Reissued Aug. 17, 1920.

F L- HARMON.

EYELETING MACHINE.

APPUCATIQN HLED 0CT.1I,1919.

4 SHEETS-SHEET 3.

74 INVENTOR I wnmzssigs: Z4 fl%. BY

- ATTORNEY F. L. HARMON.

EYELETING MACHINE.

APPLICATION FILED OCT- H, I919.

Reissued Aug. 17, 1920, v 14,931.

4 SHEETS-SHEET 4.

lllmmm Illlllllll rr e WITNESSES: i 7 J INVENTOR z? Z. &%.

ATTORNEY UNITED STATES PATENT OFFICE.

FRANK L. HARMON, OF BEVERLY, MASSACHUSETTS, ASSIGNOR T0 SINGER MANUFAC- TURING COMPANY, OF

JERSEY.

ELIZABETH, NEW JERSEY; A CORPORATION OF NEW EYE-LE'IING-MACHINE. 1

specification of Reissued Letters Patent. Reissued Aug. 17, 1920.

Original No. 1,262,336, dated April 9, 1918, Serial No. 875,371, filed December 3, 1914. Application for reissue filed October 11, 1919. Serial No. 330,137.

To all whom it may concern:

Be it known that I, FRANK L. HARMON,

of Massachusetts, have invented an 1m,

provement in Eyeleting-Machines, of which the following description, in connection with the accompanying drawings,'is a specification, like characters on the drawingsreprescnting like parts in each of the several views. v r

This invention relates to eycleting machines for punching holes in material such as the uppers of boots and shoes and setting eyelets inthe punched holes by an automatic sequence of operations. One prime object of the invention is to provide an eyeleting machine wherein the operation of feeding the material to space the eyelets may be carried on at the same time. that the setting mechanism is acting to clench the eyelets in the material, thereby greatly expediting the sequence of operations and increasing the capacity of the machine. A further im-' portant object is to provide means whereby the eyelet is taken out of the race-way and inserted into the hole by the punch that punches thehole without requiring any movement of the race-wayitself 5 preferably in the carrying out of this feature of the in vention the eyelet is alined and brought into the hole when the hole is punched and is not thereafter removed or displaced until it ispressed forward for clenching. The invention in its preferred form is embodied in a telescopically combinedpunch and set mechanism, the punch beingp'ositively held projected and moved laterally and forward to take an eyelet from a race-way that may be stationary and punch a hole in the mate rial, at the same time positioning the eyelet so that it may be pressed inward by the set and clenched. According to the preferred embodiment of the invention the tele scopic punch and set are then moved laterally and the set at the same time pressed forward, while the punch is permitted to recede, for pressing down and clenching the eyelets. A still further feature of the invention has to do with an improved operating mechanism for effecting the lateral or spacing movement of the punch and set mechanism,.this consisting in a cam memher with a cooperative element adapted to be ad usted relative thereto so as to give predetermined variable strokes to the opersequence of operations, c. 6., punching and setting movements for eyeleting a material. Further I believe that I am the first to provide a machine for operating on material 4 first named cam member in producing the and. feeding the same, comprising means for producing a manufacturing result on material or articles? or both, w th a cam connected for actuation in timed relation-therewith, said cam being formed to present a serles of operating paths of varying contour and having means adjustable relatively thereto to engage a selective one of said operating paths, in combination with means for en gaging a materialto feed the same having'a connection with said cam engaging means, said operating paths of said being formed to feed the material with varying strokes according to the adjustment of said cam engaging means. -Afurther feature-of the invention consists in improved means for mounting an anvil which ,may bear a punch block and clenching surface in-c'o operative relation with the operating'tools with a capability of pliable self adaptation to said tools, this being a feature of special value in a duplex machine and preferably attained by havin the anvil member carn ried by a relatively soft pliable strip such as of soft copper. Afurther feature relates proved arrangement and aggroupment of, plural punching and setting mechan sms connected for operation by a common actuating mechanism constituting a duplex or a multiple eyeleter.v The foregoing and other objects and features of theinvention will be better understood from the following. detailed description taken in connection with the accompanying. drawings and will be thereafter pointed out in the appended claims.

Referring to the drawings: Figure 1 shows in side elevationfa machine constructed in accordance with my invention; 7 Fig. 2 is'a plan view thereof looking in the direction of the arrow at in Fig.1;

Fig. 3 is a fragmentary elevation with parts broken away showing certain of" the immediate operating parts, andthematerial Fig. 41s a front view looking in the direction of the arrow 5 in Fig. 1

Fig. 5 is a sectional view of'one of the operating heads taken on line 5'5 of Fig. 1;

Fig. 5 is a sectional view. similar to Fig.

5, showing the parts indifferent positions.

Fig. G is a transverse section on line 6 6 of Fig. 5;

Fig 7 shows in elevationthe face car'nfor imparting the spacing movements;

Fig. 8 a section of said cam on line 88'ofF1gJ7; L Fig. 9 is a fragmentary detail showing in "plan the delivery end of-a race-way;

Fig. 10 is apartial sectional view on line 10*10 of Fig. 4; and

. Figs. 11, 12, 13, 14 aresimilar fragmen- 40.

tary elevations of the working parts i. 6.,

the punch and set mechanisms, the anvil,-

and the eyelet'raceways, showing the moving elements in their "successive operative POSliZlQIlS. 5

The working mechanism of the machine is shown as mounted on a suitable base and .framesupport 1 which may be of a pedestal I type. In the topfportion of'this support a shaft 2isjournaled, shown as equipped withaidriving pulley 2? and constituting the driving means for the machine. On this shaft are fixed two oppositely disposed peripheral'cams 3, 4. arranged side by side i and a face cam 5', the particular contour and.

manner of operation of these cams being specifically explained hereinafter. The

peripheral cams 3, lhave engageable therewithrollers 6, 6, respectively, j ournaled on levers 7, 7, thesellevers being oppositely v disposed and fulcrumed to the frame work at 8, 8, with an'arrangement such. that when they are in workingjposition with 7 their rollers held against the respective cams they are obliquely disposed and in general parallelism. Means for holding the ,to be later described further.

rollers fi, 6, against their respective cams is shown as a stout coil spring 9 engaged at its respective ends to the outer ends of the levers at 10, 10 and tending to draw these ends together. The inner ends of the levers extend opposite the operating tools, 1'. 0.,

{the punch and set mechanisms and their slidably fitted therein and constitute backing pieces to engage the punch and set mechanism. The block 13 may be adjusted endwise in said recess by an adjusting screw 15 and the block 14 is likewise adjustable by a screw .16 both these screws being threaded in a plate 17 fixedto the head, and

these blocks may be rigidly and securely clamped against all looseness and movement by ther set-screws 18 shown as threaded in laterally through the head 11 at opposite sides thereof. Slidably fitted in the block 14 is another 1 relatively thin block v member 19 extending out from the back of the head where it is engaged by a leaf or plate spring 20 fixed to the back of the lever at 21. This member -19 is of a thickness equal to, or greaterthan the diameter of the rear end of the punch 49,- but less than the external diameter of the rear end of set 47 As seen in Figs. 5 and ;6 it is of substantial width, extending in alinement with the lateral travel of the punch as later explained and affording a yielding backing for the punch in a part of its travel. The spring 20 has fitted therein an adjusting screw 22 adapted to abut against the back of the lever and de termine the extent to which the block 19 is normally projected forward thereby, 6.,

set mechanisms which constitute the operating tools of the present'invention andindicated generally at 23 are carried in sleeve heads 24 in spaced apart relation and oppositely extending, by a yoke frame 25. The

yoke frame 25 is borne at the outer end of a lever 26 fulcrumed to the fixed frame sup port at a point some little-distanceback of the shaft 2 as seen at 27." .An intermediate portion of this lever is bowed out and formed with a straight part 28 extending at'right' angles to the shaft 2 and hence parallel with the base of the face cam 5. 'Along this straight part a block 29 is fitted for sliding adjustment by the" action of 'a' manually operable adjusting screw 30 journaled and held as seen at 31 in a lug 32 projecting from the lever. The block 29 affords journal bearings roll 33 adapted to engage the operative face of thefcam't) against which it' is held by a stoutcoil spring 34 having 1ts respective ends fixed to a forward-portion of the lever as seen at 35 and to the fixed frame work at 36. The roll33. is'adapted to engage different operativecircuits of the face cam '5 at different distances from the the leverissuitably graduated as seen at 37. The yoke frame 25 is formed'separate from, though rigidly attached to thelever 261; For securing the yoke frame to the lever it is provided with spaced apart extending lugs 38 adapted to receive between them the extremityof the lever 26 which is bent in from its intermediate bow'ved out portion. A stout bolt 39 is threaded through these ears and the intermediate lever*end,"

this bolt having a' smooth' enlarged lower ex tension 40 forming a shoulderadapted' to clamp a wear plate 41' againstthe lowerlug l 38 by coaction witha nut 42 threaded on the upper end of the bolt. The lower smooth extensioneoof said bolt operates-in a slot 43 of a fiiiedframesupport portion need at its bottom theheadfof theboltf is'equi'pped with a fl'ange or washer 45 adapted 'to have bearing against"the bottom of the frame portion 44. Thus as said bolt is fitted to place and "held byfitsnut, the wear plate 41 and the flange washerf45 pressing flush against the topand bottom respectively of the" frame portion 4A serve to guide and steadythe yoke frame carrying the tools, in its movement, it. being" of course understood that the frame portion 44: is made with smooth parallelpl'ane sides through the extentfiof leverthrow for this pur ose: Pins 4:6 are passed through the ears138 andjlever end at some little distance fromigaid bolt so. as toafl'ord rigidity and prevent/any angularinovement of the yoke frame-relative tothelever. f

The punch and s etmechanisms whichjare slid'ably fitted in j-the slee've heads "24 are each composed of a tubular sew-7 formed at' its inner or operative end with "an annularconcavity 48 adapted to operate against the flange end of the eyelet. Within this tubu lar set is slida'bly fittedthe'punchv element consisting of a hollow punch 49 the punch and Set having inter'engaging.shoulders" 50 adapted'to limit the outward-projection of the operative punch en d'51. The punch end 51 "is thus permittedto project far enough to permit an eyelet to be caught thereby from a race-way and threaded thereonwith the punch extremity "extending some little be yond the eyelet as the eyelet flange rests against the end. 48 of the set. The punch andset are of lengthsothatthcy. are both adapted to engage the b'ackingbloc'k '13 in the operating lever when in the lateral position shown in Fig; 5 and to receive operative movements as presently described by the actuation of said lever. whereby the pu nchand set mechanisms are heldyieldingly against the backing blocks 13,14: and for this purpose T'show coil springs 52 fixed at one endto the sleeve ieads 24 and at their other ends to a cross pin 53 carried-by the'set. :A mating punch ele-' ment comprising an anvil or backing mem-' ber against which the punch and set mechanisms from the-opposite sides operate is shown at 54 as a block-carried by a bracket strip 55'adjustably secured as seen at 56 to the yoke frame 25.-' The block 54: is simi-I larly formed at its opposite sides facing the respective punch and'set mechanisms with a Means is provided central punch block portion 57 which isshown as substantially flat and surrounded by an annular concavity 58 of a'form and dimension adapted to'engage the shanks 6f the eyelets as they are pressed thereagainstby the set to turn them out and clench them against thematerial. It is thusto be observed that both the punch blocks against which the punchesjoperate, and the clench ing surfaces 58 against which the sets operate partake of the lateral feed or spacing movement of the punch and set mechanisms and are always; in operative alinement there with; this is'an important feature of the combination whereby'it is possibleto feed the material and clench the'eyelets at the same-time aswill be presently made more clear. Edge guides for the material are also preferably carried by the swinging yoke frame 25. These are shown as rolls 5930111- naledto'bracket pieces 60 adjustably secured as seen at 61 to the yoke frame, there being preferably: guard pieces 62 fixed to the bracketsjust back of'these rolls. table or work holding plate is indicated 'at 63 suitably secured'v'a s by bolts passing through an angular extension 64 thereof, to the machine frame. This table or work'support is recessed asgseen at 65 to permit the operative movements of the punch I and set A fixed a mechanisms including the lateral spacing or face cani 5 which as eiiplained acts on the roll-33 to move thepunchf and set mechanisms laterally for the feeding or scends. A retaining spring 71 is fixed to the.

spacin movement, has different sector POI'-? tions't erect about its circumference of dif ferent degrees of elevation so as to impart to the punch and set mechanisms the alter.-. nate lateral movements and dwells to be ex plained and 'the extent of elevations of these eral or spacing movementimpartedto the punch and set mechanisms according to the adjustment of the roller 33, they will always return to the same-initial position'when the roller. 33 descends on to this low flat portion 5,5. It W llbe understood that since the roll 33-operates on the, side of the faeeca'm near est the fulcrum 27,41. 6., between thesha'ftB and said fulcrum, the adjustment of said rolltoward the higher peripheral part of" the cam causes an increase'in the length of feedthrow not only for this reason butl also beause h l e a e is cr ase It aynow be understood that at'the beginning of a cycle of operation and astwopieces of material to beeyeleted areinserted underneath the presser feet 68 at oppositesides of the stationary Work support .63, the punch and set mechanisms are positioned laterally in alinement with the backing blocks 13' and also with thepunches in alinement with the discharge end of race-ways 69, 69'. These race-ways are each adapted to deliver a line of eyelets 6 with theirfianges extending outward or toward the sets. 'Each race-way is formed with a laterally delivering discharge end adapted to present the foremost eyelet in alinement with the punch-asj'it d race-way and in position to permit thefore most eyelet to be moved out by'the punch when it is threaded thereon while retaining the rest of the eyelet line.

It may now be understood that in opera tion the punch and. set mechanisms'are at the beginning of acycle of operation in the position shown inrFi'g. 11, i. 6., alined with an'eyelet e in the end of the respective raceways 69, 69. Thereupon the initial rise in the peripheral cams 3, 4 moves the punches downward to thread the eyelets thereon. Since the action of the two peripheral cams 4 on the. w mech i ms is the e, e.

operation of the cam 3 will be described in detail for both. Referring to Fig. 7 it will be noted that this initial rise 3* of the 3 3 is active at the same timeas the lowermost flat portion 5* of the lateral feed cam 5.. This willtherefore result'in the direct downward movement 01 the punch to thread th eyelet the eon bef re y te al m ement takes place. 'lhen the initial rise 5" of the side cam'becomes active'alongwith a concentric portion 3 Lofthe peripheral cam. This reults n mqving. p nch it e yelet threaded thereon laterally to the dotted line position of Fig. 11 Nexta further rise, 3 f .-the peripheral cam. moves the punch downward to punch the hole in the material m, this occurr ng while a flat portion 5": of

the lateral cam leaves the parts stationary as tolateral movement, this operation being indicated in Fig. 12 where the parts move from full line to dotted line position. Thereupon astillfurther riseB" of the peripheral cam forces the set forward for clenchingtheeye1et,and at the same time a further rise 5 of the face cammovesthe punch and set laterally for'feeding the material one step to space the eyelets; this being indicated by the movement from full line to dgtteddine position in Fig. 13. During these lateral movements of the punch and set the punch is moved first from the position showni -l ig. 5 toth'at in alinement with* small recess 130 less in cross section than V the external diameter of the punch but permitting the 'punchings to pass thereinto. On the second or majorlateral movement for feedin the M1011 comesfinto alinement with t eyield ng block lfllso that it is per- 'mitted to yield backward as the set operates. The block 19is'of a .width to affor a. yielding backing. for the p l lnch throughout this second-or major lateral movement for feeding. As shown in Figs. 5 and 6, this block is of a thickness somewhat less than the external diameter of the punch and set mechanism 23, z'. a, so that the rim'of the hollow set member-.617 will, find. a rigid backing against the block 13' during the lateral feeding movement, while the punch 49 during this feedingmovement is alined with theyelding block19 and being of a diameter not greatenthan thatof said-block will be permitted to re cede or telescope within the set. i The block 19. is of a'width' Substan-j tially corresponding tothe extent of this feeding movement and is' positioned later ally was to be alinement with the punch 49. during the extent thereof; ,It Twill be understood that in this lateral feed movement of the punch and set mechanisms, the anvil 54 being carried also by the swinging yoke 25 is kept in alinement therewith. The strip 55 which supports the anvil 54 is preferably of rel'ativel'ysoft pliable materialwhich may be soft copper permitting a self adaptation and adjustment of. the anvil to the punch and set mechanisms which operate against it from opposite sides. Next a descending portion 3 of the peripheral cam permits withdrawal of the punch and set mechanism while a fiat portion 5 of the face cam holds the parts against lateral movement,

and nal a fart e dew- 14 g PQ '3' of the peripheral cam completes the withdrawal of the punch and set mechanisms while a descending portion 5 of the face campermit's the return of the punch and set mechanisms laterally to initialposition as indicatedin Fig. 14, this completing the cycle ofoperation. It isto be noted that the low fiatportion 5 of the face cam is of the same elevation all theway from its periphery to its center, 210., throughout its operative radial extent and hence irrespective of the adjustment ofthe roll 33' as described to vary the extent of throw, or feed 1 movement, the operated parts i. e., thepunch and set mechanisms will always return to the same initial position, thus always being in alinement with the eyelets in the delivery end of the race-ways regardless of the extent of feed movement. It is to be noted that a marked economy of time and operation is effected and a very substantial speeding up'of the machine -made possible by the present construction whereby the lateral or feed movement may take place. at the same time that the clenching operation is being performed. The anti friction edge guides constituted by the rolls 59 which are preferably concave as shown to best engage and guide the edges of the material, con-- tribute to smoothness and reliabilityofaction. It will be understood thatthe material is held yieldingly pressed between the presser feet 66 and the work support 63 so that it is not disturbed by the returnmovement of the punch and set mechanisms, but

is fed forward only by the engagement of v the punchtherethrough and the clenching engagement. of the set therewith. It will be the operation of the present case or any understood that the described mechanism illustratively shown .as embodied in thespecial form of face cam 5 and peripheral cams 3, 4, is adapted for performing any automaticwork where material or articles are to be fed step by step, with an intermittent actuation of an operating tool or tools in timed relation to ,suchfeed for. producing any sort of manufacturing result and I therefore desire this feature of the invention to be considered in this broader aspect, as well as in its more specific form'herein shown where the operating tools" are returned to the same initial position after feeding regardless of the length of the feed stroke, and regardlessalso of'anyfparticular tools that may be used for performing either other operation. It is to be noted that a characterizing feature of this mechanism is that the means for producing the operating movements, 2'. the peripheralcams 3, 4:

l and the face cam 5 are operated in synments of each other for producing the feedchronism and timed .to wait on the movemg and operating strokes in proper sequence. I consider the construction wherebythe punchis operated initially to take the eyelet out of a stationary raceway, to

' be valuable and important, since thereby the additional mechanism heretofore necessary :for moving the race-ways is entirely dispensed with. I also conslder the feature of construction whereby the edge guide mem- 2'5, and entirely independent of the anvil 54: or its immediate support, to bevaluable and important since this leaves the anvil free for the self-adaptation and adjustment relative to the punch and set mechanisms as described and also provides a more convenient mounting forthe edge guides.

' I am aware that individual features of the invention may be embodied inother relations without departing therefrom and I therefore desire "the present embodiment to be considered in all respects as illustrative and not restrictive, reference being had to the appended claims rather than to'the foregoing description to indicate the scope of the invention.

Having describedmy invention, what I claim as new and desire to secure by Letters Patent isz' M 1. An eyeleting machine, comprising mechanism for punching holes in material, and inserting and clenching eyelets in 'said holes, and means for feeding the material to space the, eyelets connected and arranged to operate-while the clenching of-the eyelets isfb'eing performed.

An eyeleting machine, comprising mechanism for punching. holes in material, inserting eyelets "in said holes, and clenching said eyelets, combined with means for for movin said unch and set mechanism laterally while the set is being advanced for clenching.

r 4. An eyeleting machine, comprising a punch and set telescopically combined, means for impartingpunching and setting movements to the punch and set respectively,

and means for intermittently moving the. much and set laterally to feed the material and space the eyelets, said means being connected and arrangedto operate during that part offthe. cycle of operation in which the set is moved forwardfto clench the eyelet.

5. An eyeleting machine, comprising a punch, a race-way adapted to present an eyelet in alinement with said punch at an initial position thereof, means for moving bers 59, are supported from the yoke frame mounted to cooperate therewith,'and means said I punch forward to thread 'an eyelet I punch forward to engage the eyelet, then laterally to remove the eyelet, and then far- .ther forward to punch a hole in materlal thereon, thenlate'rally to remove the eyelet from theVrace-Way, and then farther for- Ward to punch a hole in the material and position the eyelet relative thereto, a backingfagainstivhich said punch is adapted to operate, means for clenching the eyelet so positioned, and means for imparting a further lateral movement to the punch to feed 10 the material and space the eyelets.

6. An eyeleting machine, comprismg an eyelet raceeway having a stationary deliveriIig eiid adapted to deliver eyelets yieldmgly therefrom, a punch'mounted to aline Wlth' the foremost eyelet in said race-Way in its initial position, means for moving said punch and set telescopically combined,-

means for imparting operative movements thereto, an anvil backing cooperative there- With,and aneyelet race-way having a stationary delivery end, said means for imparting operative movements to the punch being arranged to first move the punch forward to thread an eyelet in said race-Way thereon, then move the punch laterally to remove the eyelet, then position the eyelet on the material, and then move the punch again latemuy" to feed the material and space the eyelets.

' 8. Anl eyeleting machine, comprising an operativelyrcombined punch and set, means for imparting operative movements thereto,

and an anvil backing having a pliable 'mounting adapted to permit self adaptation and adjustment of the anvil relative to the punch and set in the -operation thereof, and means to support said anvil backing against the, operative movements of the punch and set mechanism. I Y

9. An eyeleting machine, comprising a pair of telescopicallycombined punch and set mechanisms oppositely mounted and facing each other, mechanism for imparting operative movements thereto, and an anvil backing interposed between saidpunch and i set mechanisms having a pliable mounting adaptedtopermit self adaptation and ad-- j ustment relative to the punch and set mechanisms in the operation thereof.

punch and a set cooperatively mounted to operate on a material, mechanism for imparting operatlve movements thereto, means presenting a backing for the operation of said punch and set having a pliable mount pair of f 'one of said 0 erative paths at will. 10'. An eyeleting machine, comprising a 'ing adapted to permit self-adjustment (if said backing relative to the punch and set,-

and an edge guide for the'materi'al mounted adjacent to, but clear of, and having its support relatively remote from said backing means.

punch and a set mounted in cooperative reiation foracting on a material, mechanism 'for imp'artmg "operat ve movements thereto,

an anvil backing'for said punch and set adjustable the direction ofv movement thereof, and an edge guide for the material mounted adjacent said anvil but clear there of and with its support relatively remote therefrom whereby the anvil may be adju'sted Without interfering With said guide. I

H 12. An eyeleting machine, comprising a punch and a set cooperatively arranged for acting on a material, mechanism for impairting operative movements thereto, fan anvil backing presenting a punch-blockand a clenching surface cooperative With the punch and set respectively having a pliable mount-' I ing adapted tof pern'ii't self-adjustment of said bacln'ng relative to the punch and set, and an anti-friction edge guide for the inaterial formed as a roll mounted adjacent to I said anvil, but clear thereof and with its support relatively remote therefrom. '13. Aneyele'tin machine, comprising a telescopical combinedlpii nch and set mechanisms oppositely mounted fivith an interposed anvil backing, means for imparting operative movements to said-mechanisms, a yoke, frame in Wlllch "said mechanisms are 'slid'a'bly fitted, and means consisting in a face cam connected to move in synchronism with the operation of 't'h e punch and setfmecha- 'nisms for moving said okeframe intermit' tentlyto impart latera feeding movements 7 of said punch and set mechanisms.

14. A machine'of the kind described, comprising a tool for performing a manufac- Y turin'g result one material 'With mes-near operating'the same, and means for feeding the material consisting in a camconnected to movein timed relation to said toolopferating means and an element cooperative there- With for effecting said feed movement, said cam presenting a plurality of operative paths adapted to produce different operating strokes for feeding and having a neutral portion common to all of said paths whereby said feeding element is returned to the same point when actuated by. anyone of the paths of said cam, and said element engageable therewith being a'djustable to engage any v 15. Amac ineofthe kind described, comfprisingtool mechanism adapted to perform terial and said tool mechanism, said means timed relation with said tool operating mechanism, said cam presenting a plurality of operative paths each adapted to produce a' different feeding result and having a new tral portion common to all of said paths whereby said feeding element is returned to the same point when actuated by any one of the paths of said cam, and an element con nected to effect said feed movement and adjusiliable to engage any one of said paths at W1 16. A machine of the kind described, comprising tool mechanism for producing a manufacturingresult on a material, means for operating said mechanism, and means for effecting a relative feed between said tool mechanism and the material, said means consisting in a cam connected to move in timed relation with said tool operating mechanism, said cam presenting a series of operating paths adapted to produce different feeding strokes, and a member adjustable to engage any one of said paths at will and connected to effect said feed, said cam being formed to return the parts operated by said element engageable therewith to the same initial position regardless of the operating path engaged thereby.

17 In a fastener setting machine, a telescopic punch and set, and a hammer for operating the same, said hammer having independently adjustable elements acting respectively to. operate'the punch and set.

18. A hammer for use in a fastener setting machine employing a punch and set, said hammer comprising a lever-arm bifurcated at its extremity to provide opposed, spaced arms, a vertically adjustable punch operating element, and a vertically adjustable set operating element located between said arms.

19. In a fastener setting machine, a telescopic punch element and set, a punch operating hammer, and an adjustable element carried by said hammer and adapted to contact with said punch.

20. In a fastener setting mechanism, a telesco ic punch element and set, a set operating ammer, and an adjustable element carried by said hammer and adapted to contact with said set.

21. In a fastener setting machine, a telescopic punch and set, and a hammer for operating the same, said hammer having independently adjustable elements acting respectively, to operate the punch and set, said elements having screw ad ustmg means and devices for locking the same in adjusted position.

22. A hammer. for use in a fastener setting machine employing a punch and set, said hammer comprising a lever arm bifurcated at its extremity to rovide opposed, spaced arms, a vertically adjustable punch operating element and a vertically adjustable set operating element located between said arms.

In testimony whereof, I have signed my name to this specification.

FRANK L. HARMON.

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