US1882031A - Fastener-inserting machine - Google Patents

Description

Oct. Il, 1932. M. D. PHELAN FSTENER INSERTING MACHINE Filed Jan. 30, 1931 2 Sheets-Sheet l Oct. 11, 1932. M, D, PHLAN 1,882,03 1' FASTENER INSERTING MACHINE Filed Jan. 50, 1931 2 Sheets-Sheet 2 Pafented; 0a. 11, 1982 :machines andjisherein disclosed as em'bodied in armachinetconstructed, andarranged to i Insert tubular fasteners of. ductile metal hav :1 cmnaron D. 151-IELA1\T,0FBEVERLY, MAssAoHusn'rrs, Assienonl To uniTEn, si-Ionf .-iim(1n11\inmzV conronArion, or rarnnson, NnwgrnnsEY, A -oonione'rion 'oni NEW JERSE 'rA'srENEn-msnnmme. MACHINE Application filed January 30, 1931, V'SeriaI'Narlfe.

' This invention Orelates tofatener-inserting ing fiang'es anderowns at one end. VFasten'ers 'of the type abovementioned aresimilar to l grommets in that they aref provided with flanges Vat one end and are adapte'dto be upset andclenched at-the other end, but in a strict i sense they are notgrommets since the crown at the 'flanged end closes the barrel .even

though the Crown, as hereinshown, is made of fo'raminous material. i Fasteners of this type of mattresses. lvlany mattressesare provided with loops or straps at theii` sides by which they may be lifted and carried. It has become common :are used,ifor example, in the manufacture .to' attach such straps to the mattress ticking With grommets that extendthrough the ticking as well asthrough'the straps. If gromniets ,are used for this p urpose,-they must be large to insure strong connection of the 'straps totjhe ticking.` Oonsequently, there is danger .that the stufling with which the mattresses are filled* will work out through the holes in the grommets. Fasteners of the type 'referred to above are especially suitable for closing grom;

mets, as well as for other purposes which need .not be explained'herein, since they are i are closed at the flanged end. i

For clenching Crown fasteners of the type substantially. like grommets veXcept that they ;referred to above, it has beenvcolnmon to use power-operated. machines similar to those `used for inserting eyelets and grommets, but

it has heretofore been necessary, whenjoperating on crown fasteners, to place them manual- `ly in the articles of work. The reason for this zmanual insertion ,ofcrown'fasteners is that no upsetting mechanism capable of op- `erating on such fasteners hasv been so organ-- vized as to be also capable of' cooperating with plying means.

lIn view ofthe conditions above set'forth,

any known type' of automatic fastener-sup- 4an objectof the 'present invention is to 'provide an' improved fastener-inserting lmachine capable'of inserting and clenching crownlfa's- `lower tool is 'provided wit teners`=presented to the inserting mechanism by automatic fastenersupplying means, to

the end that the voperator will not'be required to handle the fasteners; f w. f Aecordingly, afeature of the invention con,-

sists in a vfastener-insertingmachine comprisfv ing'a sptlndle, a racewayarranged to present th'ereO the `Open end of a tubularl vfastenerV having afiange' and'a'crown at'its other end,

:nechanism for relatively moving said race-` Way and the spindle to place the? fastener on a the spindle, and mechanism arranged to in- .a sert .and clench the' fastener thus lodged on o the spindle. I i 1 o v,

In the illustrated machine, the cooperative upsetting toolsare arranged one" above the other, the lower tool being stationary and the spindle being telescopicallyarrangedtherein an annul'ar upsetto the spindle by automatic'means comprising a raceway, the delivery end of which is movable to and from a positi'on'inregister with the spindle. "I

In former fastener-inserting machines provided with automatic means for supplying fasteners to a spindle projecting from one` of -the upsetting tools,;i t has,Vbeen'necessary` to set a machine in operation to insert the spindleinto a fastener. Moreover, 1f axmachine is provided with a driving clutch, itis ja'rr'ed when started suddenly in oonsequ-ence of i Vtrippng the clutch. Then, if the machine' is not rigilyfastened to a supporting'bench,`l or if the bench itself'is not quitetrigid, the jarf ring incidental to a Sudden start may shake' the machine and a fastener about to be picked by thespindle; i -V i Since, under conditions such 'as those men'- `tioned, thereis some likelihood that' the spindle would foul the fastener, another object of the present invention is to provide, in a fa'sttener-inserting 'machine operated by a driv-7 ing clutch,- for inserting a spindle into a fastener vwhile the' l'machine is at rest,/or other- Wise stated, while the driving clutch is disengaged. i

To this end, and in accordance with another feature of therpresent invention, the illustrated machine embodies a novel organization comprising 'a manually Controlled clutch by which the fastener-supplying means and the fastener-inserting mechanism are operated,and aspring-projected spindle initially restr'ained in'a retracted positionz'by ahl'atching device so connecte'ditothe manually operative clutch-controlling means that when the latter is operatedv it'will'first trip i a .of a fastener-inserting machine embodying i secured by grommets; and

the present invention, omitting thepulley by which the Operating shaftris driven;

Fig. v2 is a perspective view including the fastener-inserting tools, the spindle and manually operated means by which the spindle is controlled; i i

Fig. 3 is a Vertical section including the fastener-inserting tools, the spindle and the delivery end of a raceway by which fasteners are supplied to the spindle; .V

Fig. 4 is a viewV similar to Fig.t 3 but representing the fastener-inserting tools 1n the 'act of clenching a fastener;

Figo is a front elevation of a portion of the raceway and the mechanism by which the raceway is operated;

Fig. 6 is a perspective view representing a typical example of work, such as a piece of mattress ticking, to which a lifting strap 1s Fig. 7 is a sectionalview on a larger scale of an example of work such as that included v111 Flg. 4:. i :I

z ReferringV first to Figs. 6 and 7 ,i an element 10 of sheet material, such as mattress ticking, isprovided with a lifting strap 12, the end portions of which are secured thereto by 'grommets14 and washers 16 of well- ,knownr construction applied 1n a well- V known manner, the barrels of the grommets extending throughethe strap 12 and through the sh'eet material 10, and being clenched against the washers 16 with what is known as a roll clench 18. The flange's'of the grommets lie on the strap 12 while/the washers, i 16 lie onf what will be, in a completed mat tress, the inner surface of the 'ticking lholes with crown fasteners.

Grommets 14 Vof asizesuitable forwork of this kind are so large that the stufiing of a mattress would be exposed by, and lmight o work out through, the holes therein. Gonsequently, it is thepractice to close these tener ofthe type commonly .used for this purposecis illustrated in Figs. 3,4 and 7. Such a fastener is made of ductile sheet metal and comprises V'a tubular barrelf'orV body portion `20, a double' or'ifolded'flange 22 at one end thereof, and. aV crown 24 at the fianged end. 'Asv shown'in'eFig; 7, the lower end of the barreljportion20 hasbeen upset and'clenched 'against the'roll "clench 18 of the grommet 14 wherebyithe crown fastener issecured to lthe rommet with itsfiange 22 :lying'y onthe.

ange of the grommet. The lower end of the barrel `20is initiallyformed without the fiar-`v ing portion 426 to provide for inserting 'it A crown fasthrough the barrelof the grommet14.A The i crownv24 is representedas a disk Vof woven' wire fabric of'fine meshV adapted to preven't thestuffing of a, 'mattressf'rom working'out and at the same Ztime'permitting air to .pass through the interstices 4betweenthe wires of which it is fabricatedw The inachin'eihereinafter descrbed'isor ganized to insert suchcrown fastenersrinto grommets previously applied' to articles Aof work. The general organization of the il'lusj trated machine is similar to that of the vmachine *illustrated `and' 'described in United States LettersiPatentfNo; 1,369,021, granted February`22`,"1' 921, oh application of; PJ R.

Glass7 although the machine illustrated herein c'om'prises certainfeatures 'and combinations'not embodied'in the patented machine. a

` Referring to'Fig 1, the 'main frame 30'of themachineis provided with a flat basel 32 by whi'cho'it may be'mounted on la bench'and is providedwith bearings (one' of which 'is indicated at 34) in 'whicha horizontal operatlng shaft 36 is journaled. 'A boss 38 formed 'on the frame is-provided with a socketto'v receive' the shank portion 40 of a stationary horizontalhorn. 42 which is secured to the frame by a dowel44and a set-screw 46. TheV upper part of'the frame 30 is formed to provide anarm 48 that overh'angsthe horn: 42 and provides a bearing for' a vertically movableplungerrO. This plunger carries at 'its 'lower end'a movable Vfastener-nsertingA tool V end of a crown fastener.V -A shank 54"formed `Von the tool 52 projects into a socket formed in Vthe plunger' 50 and is securedtherein bya set-screw 56, but the pressure required to upset and clench the barrel ofV a crown fastener is sustained by a nut 58 which engages a screw-threadrformed-onthe to0l 52 and also 52,-the lower end ofv whichV isfiat and horizont-al toengagetheffiange 22=at the upper' engages the lower end oftheplunger 50, thus relieving theset-screwffrom the Operating pressure' I i The p'lung'er is operatedeby a lever'60 to' which it is'connected by a pair of links, one of whichis represented at 62 and inasks the other when viewed from the side.` The lever is mounted on 'a'fulcrum pin 64 and is provided .with an arm 66 which projects to the rear of the machine, A crank pin 68 carried by the shaft36 operatesthe lever 60, 66V

,through the medium of a link or pitinan 70.'

The fastener-inserting tool 52 is'arranged togcooperate with a stationary lower'tool '72 affixed to the horn 42 by a set-screw 74. T he stantially concentric relation to the t00l-72` andthereafterV servin'g' to take acrown fastener from the. fastener-supplyin;)` means and tov guide the crown fastener into the grommet to whiohit is to be secured.i The spindle is provided with a vshank which extends below the tool 72 and below thehorn 42, the lower end of the shank being provided i with a collar 82 by which'its operation may be controlled and'by which its upward move-' ment is limited. 'i

The'spindleis normally projected upward- `ly by a compression spring'j84 enclosed in the tool 72 but is initially restrained inl its lower position als represented in Figs. 1, 2 `and 4, inlwhich position its upper end projects above thetool 'Z2only far enough to occupy a hole. in an article of work'to which a crown thehorn` 42 is provided-with a latch or tripping member 86 arranged toV overlieV-and engage the npperrface of the collar 82. V,The

latch 86 is provided With a lhorizontal stem or rock-shaft 88 whichis journaled in a=boss formed onthe horn 42, the Stein being provided with a head or collar 90 at its rear end. A torsion spring 92 encircles the stem 88 and actsA normally to swinp; the latch 86 toV its operative position as shown in' Figs. 2 and 4.

l For this purpose, one end of the spring 92 is f inserted into a socket in the'collar90 and the other` end bears against a side, surface of. the horn42. The relation of the parts 1s such thatfwhen the'spindle is depressed by the.,

upper tool 52 the collar 82 at the lower end of the'spindle is carried slightlybelow the lower extremity of the latch 86,. whereupon the vlatch is moved to its operative position by the spring 92 and thus restrains the spindlef 'in its depressed position' until the latch` is retraoted` by manually operative means hereinafter described. w. l .i 'i

A lugfor finger 94 formed on the latchingl device projects laterally vand overhangs'theU forward'end of a tiripping lever 96 mounted on 'a fulcrumstu'd'98 p1`-ojectingfron1 the` horn 42.- Thus, as shown .in Figs; 1 and 2, the assemblage comprising the horn42, the

lower ltool 72, the spindle 78, the' latching' i projecting from the fra1ne30. A compres- 1 sion spring 1.04 surrounds the rod'f100and'-` i exerts its pressure upwardly againsta collar 106 afiixed to the rod. rl`he lowerend of the vrod is connected to` a Vtreadle ('not shown) by a wire linl: 108. Therod is provided with another collar 11,0 which overlies the rear end of' the tri ino' lever l96 in suchinanner that when therod 100 isdepressed 'by the treadle the collar 110V will operate the lever 96 to trip or releasethefspindle ;78-v`` (see Fig. 3) The spring` 84 isthuspernnttal tom" project theV spindle upwardlyvinto the barlrel of a crown fastener presented' VVthereto a.

95 over, as'hereinafter expl'ained, the-,Operating i' flan'g'e Vupperinost as Vshown in Figf. More:

movement of the lever-96 is utilized for, the

additional purpose of'tripping a cl'utch'th'at operates the fastener-inserting mechanism I' and the fastener-supplying ineans.

, y,10g i The.fastener-supplying*means(of the lma-y` chine illustrated iherein .is ofthe same type,l`

'of'the machine illustrated and -described in said Letters Patent No. 1,369,021. ReferringVV teners are supplied to the spindle 78 by a raceway 112 inounted on a horizontal pivot pin 114 and provided at .its upperend. (see Fig., 1) with a hopper 116 from whichthefasten- Vers are fed by la rotary brush (not shown).

v i and is operated in the same manner, as that fastener is to .be applied. For this'purpose `The lowerend of the raceway is movablelaterally to and from a position between the o movable inserting tool 52 and the stationary clenching tool 72 and' is provided with a; sprng-pressed detent 1'18bywhich the lowermost'fastener is arre'sted at a position in register with the spindle. 'Rotation for operating the lbrush in the hopper 116istrans-'14 mitted from the shaft 36 by a belt 120 which runs over idle pulleys 122 vand around a driven pulley 124 secured to'the shaft of the V hopper brush.A

As shown inFig., arranged between two spaced supportinglV 1, the raceway 112 isv` i v brackets 1261 formed on the overhanging arm I Viza 48 of the frame, thepivot pin 114 extendig i through the brackets 126 andthroughthe interposed portion of the raceway.1 i., Q The meChan'Sm for vOperating the racewayj 10,5v to Fig. 5 of the presentvcase, thecrownfascompriseV a cam 128 carried by the shaft 36', a l'ever 130 operated by the cam, a horizonta'l rock-shaft 132 to the rear end of which the lever130 is afiixed, a lever 134 affixed'to the :'rock-shaft near its forward'end, and link' 136 connecting the lever-134and the race- Way. The cam 128` is effective only to re'- tract the delivery end of the raceway from its. fastener-presenting position, .the movefrom a compression spring 138 (Fig. 5') surrounding a rod'f140 pivotally connected to' 'on application of R. B. Smith. This clutch comprises a continuously rotating driving member (not shown), such as a pulley, looselymounted on: the shaft 36 and provided with Hone or more'driving lugs, any one of whichV ggfimaybe engaged by an vaXially movable clutch-pin 1:46 carried bv the-,driven member- 148 of the clutch. The clutch-pin 146 is normallyt'p'rojected to its clutching position by a compression. spring V150 embedde'd in'V al Asocket in the driven member 148. One end ofV the clutch-pin 146 carries Va segmental head 152 that embodies a wedge formation,

'the inclined surface of the headlbeing ar-` Wranged to cooperate with the upper end of 40 the Vertical rod 100 to disengage the -driven i member 148 of the clutch from the driving member by retracting the pin 146. When the manually operative rod 100 is in its-noro mal position represented in Fig. 1, its upper -end`stands in the path of rotation ofv the wedge-shapedhead 152 and in this position it -is effectivevto diseng'age the clutch' andi arrestthe rotation of the shaft 36; On the Wother hand, when the'rod`100 is depressed by 'the treadle it first trip's: the spindle 78 as hereinbefore described and thereafter 'trips w the clutch, thereby initiating the automatic oper'ationof the fastener-inserting mechanism andfthe fastener-supplying means.: h Inusing the illustrated machine for inserting crown' fasteners, the operator willi first place an'article of work on the'lower -tool 72, as shown in Fig. 3, the spindle 78 -`being initially restrained orilatched in its lower position as represented in Figs; 1 and 2.`` The delivery endof the raceway initially occupies the position represented inFig. 3,

in which position it supports a crown fastener, fiange end uppermost, inregister with ffthe 'spindle.`l W'hen all is: in readiness for-the 772 ment in the-opposite direction being derived f Ving tool 52.V

insertionof a' crown fastener, the operator depresses the treadle, thereby projectingthe' spindle 7 8V upwardly intofthe cro-wn fastener and. subsequently tripping the 'Operating clutch. 'i i 'i i i The two horizontal' broken lines a' and 0 at the right of Fig. 3 represent respectively the lowest position and the highest position of the upper surface of the forward end of the tripping lever 96, while the intermediate broken line b represents the level at-which' the lever trips the4 spindle. ,The distance from a'to'c corresponds to the downward movement of the controlling rod required" totrip thevoperating clutch, but before the clutch is tripped the spindle enters the crown fastener'inV the raceway as shown in Figi-3.

Having tripped the clutch,`the operator immediately releases-the trea'dle ithereby permltting the springv104 (Fig. 1)' to raise the controlling rod 100 before -the vspindle V78' is again fully depressed by the fastener-insert- The first result retraction of the delivery end of the raceway from the path of the inserting tool' 52,

the presented fastener being thus stripped from the vraceway and remaining on the' up-i` per end of the spindle 7,8 as, shown in Figfl; The lnsertlng'tool 52, now descending, i-nserts the barrel of the crown fastener into the article of work and clenches the lower end of the barrel against the annular clenching surface 76of the lower tool. As the crown fastener is forced downwardly by'the inserting tooll 52 its crownportion 24 depresses the splndle 7 8 to theposition' shown in Fig. 4-, whereupon the latch V86, now released by Vthe trippi'ng lever 9,6, is moved automatically to'its latching position shown in that figure.v

The inserting tool 52 now rise's to its' initial positionV represented in Figs. 1, 2 and 3, the delivery end of the raceway returns to its initial. position 'shown' in Fig. 3, vand the wedgie member 152, now riding on the cono trollmg rod'lOO, disengages the clutch and i arrests the rotation of the'shaft 36.` o

Having thus described my invention, what I claim as newfand desireito secure by Letters Patent of the Unitedl States is: i

1. A'fastener-inserting machine comprisinga-spindle, a raceway arranged'to present thereto the open end of a tubular Vfastener of tripping` the clutch is` having a fiangeeand la crown at its other end, o

mechanismV for relatively moving said raceway and the spindle to place the fastener onv the; spindle, and mechanism arranged'j to inw sert and clench the fastener thus lodgedon the lspindle.

' 2. A "fastener-inserting machine compri's- 1ng an 1nd1v1dually'movable spindle, means.:

arrangedftopresent thereto the open' end of a tubular fastener" having a flangeat itsA other end, manually `'operative ,means arranged to insert the 'spindle into a'fastener' iza iso

presented thereto said presenting means, i and mechanism arranged to insert and clench a-fastener lodged on atheispindle 3.1A fastener-inserting machine comprisingf'an aupstanding. spindle, 'a v`raceway jarranged to nresentto the npp'er end thereof a'tubul'ar fastener-having a fiange and' a crown at' its upper end, mechanism for relai tively'moving said raceway and Jthe spindle to place the fastener on Vthe spindle, Vand mechanism arranged to insert and clench'the fastener lodged on the splndle.

4. Afastener-rnserting machine comprlsing cooperative setting tools'formed to operate ion the ends'of a'tubular fastener havin 'a' flan'e at one end as indle telesco Vical-v ing a spindle, means arranged 'to present thereto the open end 'of a tubular fastener having a flangeat its other end, manually operative means arranged to insert the spini dletinto the barrel of the fastener, and automatic mechanism controlled by said mannally operativeV means for inserting and clenehing the 'fastener thus lodged ,on thev spindle.

'76. 'A fastener-inserting machine comprising cooperative setting tools constructed and arranged to upset and clench the unflanged end of a tubular fastener having a fiange at its other end, a spindle telescopically arranged in the one of 'said tools that engages the unflanged end of the fastener, means arranged to present theunflanged end of a fastenerto said spindlemechanism for relatively moving said means and the spindle to place a fastener on the spindle, and mechanism for Operating the other one of said tools to insert and elench the fastener thus lodged on the spindle.

7. A fastener-inserting machine comprising a stationary upsetting tool provided withV aV spring-projected spindle' and with an annular surface formed to upset and clench one end of thebarrel of a tubular fastener having a flange at its other end, meansarranged to supply a fastener to said spindle, a. movable upsetting toolL arranged to engage the flanged ing an upper tool and a lower tool formed and end of a fastener lodged Von said spindle, and

means for Operating said movable tool to insert the fastener and clench it against` said stationary tool. t'

S. A fastener-inserting machine comprisarranged to insert and clench a tubular` fastener having a flange at its upper end, a

spring-projeeted spindleZ telescopically ar-`:

tools to insert saidA spindle. o i i `9. A fastener-inserting-l machine compris-v` ingtwo cooperative'setting tools'one of which is providedwith an annular clenchingi' surface foroperating onV an unfianged end of a tubularfastenena spindle telescopicallyari and clench a fastener lodgedon l i ranged in saidone of' said tools, a raceway `arranged to present the unflanged end of such a fastener to saidv spindle,` Vmechani'sm for relatively moving said rac'efway and the spinmechanism Vfor causing said tools to' insert and clench the fastener vthus lodged on the spindle. i I

10. A fastener-lnsertlng machine comprlsranged in .said lower tool, means' arranged to supply a fastener flange uppermost to said spindle, and means for relatively moving said i ing twocooperative setting tools one of which 'arrangedto presentthe unflanged end of such a fastener tosaid spindle,-manua1ly. operative means arranged to projectfsaid spindle into a fastener ingsaid .raceway and mechanism for Operating said' raceway and'one of said settingtools.

o 12. A fasten'er-inserting machine eomprising cooperative setting tools` one of which is provided with a spring-projectedspindle, a latchbyfwhich said spindle is restrained in'a retractedposition, means arranged to present a tubularzefastener to said spindle, manually operative means by which said latch is operated'to trip' said spindle, and automatic' mechanism controlled by said manulally operati've means for Operating said fastener-presenting means and for causing saidV tools to insert'andclench the fastener lodged on said spindle. j.

A fastener-insertingV machine comprising a stationary setting tool provided with a movable spindle and with an annular surface formed to 'clench an endfof a tubular fastener, a movable fastener-inserting tool arranged to cooperate with saidstationary tool, a movable raceway arrangedto present to said spindle the unflanged end of a tubular fastener having a. flange at'its other end, manually controlled means arranged to project the spindleinto thefastener sopresented, and automatic mechanism under control of said 80 e dle to Place afastener on`the Spndle'and manually Controlled means fr Operating said raceway and causing said: movable toolV to insert the fastener and vclench it against said stationary tool; f

i 'i 14:.*A fastene-r-inserting machineicomprising,` fastener-inserting mechanism` provided with an individually movable sp'indle arrangied to pick a tubularfastener to be ini serted, means arranged Vto present a tub-ular fastener to said spindle, a clutch for operating'said fastener-inserting mechanism and said `Vfastener-prfesenting means, and 'mainually operative meansV arranged-to "project said 'spindle into4 a presented fastener and thereafter cause drving engagement of said clutch;

15. A fast-'ener-insertingv machine comp'rising fastener-inserting mechanism provided with va spring-projected spindle for vpicking a tubular fastener 'to be inserted,V a latch 'rarranged" to restrain said spindlein a reby which clntch-tripping movement of said Vtracted position, means 'arranged to present and arranged to insert and clench a Vtubular i fastener, a spring-projected 'spindle' telescopicallv arranged in said'lower tool`,a latch arra-nged to restrain saidspindle in a retracted position,` means iarranged to present a' fastener to 'said spindle, an automatic clutch varrangred to'- operate said' fastener-presenting means andl one'of said setting'tools,

and a manuallvoperative 'means arranged to i trip said spindle and said cltutch'. r r i.

17. A fastener-insertingmachine comprlsinzfmechanism lfor inserting 'and 'clenching' a t'ubular fastener said .mechanlsm [being provided with a sprmg-projected spindle for cpiickin'g 'al fastener toV be inserted, means 'arranged to present a fastener to said spindle,

vanautomatic clutch which said mechanism and said means areoperated; manuallv operative Vmeans bv which) said `clutch is tripped, a latch bv which'said, sp'indle .is restrained in a retractedposltion, and means manuallv operative means-is communicated to. said latch ,to trip said spindle. i

18. A fastener-insertine: machine comprising. upper and lower setting' tools formed to operate respectivelv Vonthe upper end and the lower end of a tubular fastener having a flange at its upper end` a spindle telescopicallv arranged in said lower tool, a racewav arranged to present such a fastener flanpe uppermost to said spindle, manuallv Controlled means arranged to projectthe spindleinto the fastener so `presented and automatic mechz nism under control of said manually controlled means for :operatingsaid Leszna:

raceway and `cau sin'g saidtools to: inserttiand clench 'the fasten'er lodged on said spindle. 19.- A fastener-inserting machine com:- prising' an automatic'` Operating clutch, a

vmanuallv'. movable member for controllingv said r 'clutch, o ifastener-inse'rting mechanism' and fastener-supplying means both arrang'ed to be operated by said clutch, a frame in which all the aforesaid elements are arranged in cooperative relation, and a unitary assemblage constructed and arranged to be attached to said frame: fand-detached intact therefrom, said assemblage including .a fastener-clenching tool, a spring-projected fasv tener-'engaging spindle; a trip-latch for con- 'trolling said spindle, fa member for operating said. trip-latch, Vand a snpporting member to whichthe aforesaid elements ofsaid assemblage are connected, said' Operating member being arrange'd to receive Operating moveme'nt from' said manually movable clutch-controlling member when said assemi blage is attached to said frame in cooperative niem. r w r In testimony whereof-I have signed my' name to thisspecification. z i MERTON D; PHELAN. f:

relationV to said fastener-inserting mecha-``

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