US2259568A - Heel-attaching machine - Google Patents

Description

OCP 21, 1941- T. A. KEs'rL-:LL ETAL 2,259,568l

HEEL -ATTACHING MACHINE 'Filed Jan. a, 1940 YII 4 Sheets-Sheet 2 Oct'. 2l, 1941. T. A. KEsTELL ETAI.- 2,259,568.

HEELfATTAcHING MACHINE A Filed Jan. 8, 1940 A 4 Sheets-Sheet 5 Oct. `2l, 1941.

T. A. KESTELL ET AL HEEL-ATTACHING MACHINE Filed Jan. 8, 1940 4 Sheets-sheet 4 Patented Oct. 2l, 1941 ',HEEL-ATTACHING MACHEWE Thomas Aubrey Kestell and William Roderick Barclay, Leicester, England, assignors to United 'Shoe Machinery Corporation,

Flemington,

1N. '.I., a lcorporation'of New Jersey Appl-icationlanuary 8, 1940, Serial No. .312,866 lIn Great Britain February 3, 1939 '29 rOlaims.

4gpower-operation While .-such machines .have

proved Vable S.toperform their shoe-jpositioningfand ,heel-,attaching .operations satisfactorily, tit Ilias .been .noticed that, owing vto the treadle `being 1de- ,pended :upon to factuate the :shoe-positioning `.meansas well Y,as the :shoe-pressing means :and A,the .-clutch, the movement of said :tread'lehy `an operator -calls (for the expenditure of :appreciably .more energy than -when :the machine ,lacks such control of rthe .shoefpositioning means. :Consequently, due :to fatis-lleof :thefcmerator'1 Itheoutpnt of the machine is :likely to be lessened.

It is one of the Various objects ofrthepresent :ri-mention, in 1a machine of the above-mentioned type, to substantially lesseniheteffort required by fthe operator Vin actuating the shoe-positioning fmeans and -the ivork-pressingmeans `andi-in-s'tart- .ing the operation :of the :machine This may :be accomplished hyiproviding ,powermeans for actu- .ating'at least -t-he Yshoe'posi-tinning;means. Means -made 'effective 'undertthe power of :the machine iis therefore utilized, ,for causing the shoeepostion- :ing means ,to 4.become operative .during an early `4:portion of the depression of :a tread'le -orother :staittingmemher of the machine, which also .conitrols the 'work-pressing means. 'llheshoe-pcsitioning means 'of the'lillustrative embodiment of the rinvention `maycomprise .a band-clamphaving movable arms for engaging Ithebackland sides 'of `the-countenport'ion:of as'hoeupper. It -is armanged 'to he facted on -by a spring which tends :normally to cause Vthe arms 1of `the clamp to be #moved `towards each other -to engage va shoe. hmatching Vmeans 'is provided for holdin-g lthe arms open `against the lresistance of the spring, and there are-connections from the starting member ofthe machine which cause the latching means to ibe'moved-to vfree Vtheband-clamp to receive the action'ofthe'spring. Alurther means, including a and-'for'loading the spring 'for 'the succeeding opi eration. The necessary movement ofthe work- .pressing means and .thestartingof .the machine are .eifectedby continueddepressionof .the treadle v after the closing vof the band-clamp ,on the work.

In -addition .to .the attachment Vof `a Vheel .to a shoe, the .machine-of this invention may .be used to spank .a top-liften such an attached heel khefore the :shoe is removed from the machine. For this purpose, asecond power-cycle ofthe machine is needed without releasing the `shoe .from Vthe band-clamp. .The invention therefore has means, ,arranged for movement .by theoperator, Vforpreventing the latching means from releasing the shoeirom the band-clamp after `the first powercycle of lthe machine, during whichcyclefa heel ,'isa'ttaohed to .a shoe, ,and for allowing it .to be- `comeoperative after .the `top -lift hasfbeen spanked .onto the ,heel Vduring the .second .power-cycle .of lthe machine.

The .invention ,further has as an object nthe ,provision of means 'whereby ythe band-.clamp may .be .adjusted `with rela-tion -to `a shoe which it is to locate; .and :means -loy which `said band-clamp may `he retained .temporarily in anelevated position .to `facilitate the introduction=of `the workfand `conveniently released, either directly by -the operator or as .anfineident tomovement of Lthework- `supporting jack. Further, means .arepreferably .provided for variiahl-y limiting the 'descent fof the Areleased band-.clamp and for f cushioning itiin .its arrested l-treweL The invention will now be more fully described with reference to the accompanying drawings, in 'which .-Fig. 1 is a broken 'side :elevation :of the upper part of the illustrative machine, some elements being omitted;

Fig.2,.=an enlarged View, corresponding to Fig. 1, -.o'f Ycertainzparts more closely associated "with lthe jack-post;

Figf, Ja like yiewiof other parts iseenlin Fig. l for controlling the closing of -the-'band-clamp;

Eig.f4,iaplan view-of fthe band-actuating'mech- :anism Y Eig. .5, a :View similar ito Fig. 4, with parts in section;

Fig. J6, a frontv elevation l of 'said bandactuating mechanism;

Fig. `7, `a section along the line VII--VII of Figfli; --and 'Fig'. 8,-a broken side elevation of "the lower part of the machine.

The lillustrative kmachine is s'imilarin many re- ^spects to `that described in LettersPa'ten't of the United States No. 1,195,134, Gouldbourn, August 15, 1916, but. modified as in Letters Patent of the United States No. 2,085,851, Gouldbourn et al., and No. 2,085,852, Gouldbourn, July 6, 1937. As shown in the accompanying drawings, there is provided upon a frame F a support I, in which operates fastening-inserting means or drivers 2, and means consisting of a swing-plate 209 for positioning a heel and top-lift in relation to the driving means. Preliminary pressure may be applied to the work and clutch mechanism tripped to initiate power-operation of the machine, through a treadle 4 depressed by the operator. Movement of a lever 6, under lthepower of. the machine, throws out the clutch mechanism to stop the operation upon the completion of a cycle. engage the back and sides of the counter-portion of the upper of a shoe and to enter the crease.' This band-clamp is similar to that described in Letters Patent of the United States No. 2,162,824,

LPratt et al., June 20, 1939, and comprises a thin flexible metal U-shaped band 5 having secured to the free ends of its opposite arms plates 1. Rising from the plates are pins 9 which pass through slots formed in the outer ends of bandclamp-actuating arms II. To the rear of the band, near its lower edge, a block I3 is attached (Fig. 1), this having a pin I5 extending rearwardly from it. The pin is held by a springpressed plunger 2| on a bracket I1, secured to a slide I9, arranged as described below.

For mounting the band-clamp so that it may be variously adjusted, there is secured to the machine-column a xture 25, and guided for vertical movement upon this Xture is a slidable bracket 21. Ball-bearings 29 (Figs. 4 and 5) may lbe interposed between the fixture and the bracket to permit easy movement of the latter. The

bracket 21 has extending forwardlyfrom it a ,u

There is also a band-clamp 3 arranged to shelf (Fig. 7) with rack-teeth formed on its Meshing with these rack-teeth is a pinion 3| rotatably mounted on a supporting member 33 for the band-clamp-slide I9, which ysupporting member is dovetailed on the shelf 39.

lThe pinion 3| is mounted on a transversely-extending shaft journaled in the supporting member 33, and keyed on the outer end of this shaft is a handle 31. By rotating the handle the pinion is' caused to travel along the rack-teeth on the shelf 30, so that the supporting member 33 will be caused to move forwardly and rearwardly of the machine. Means is provided for holding the supporting member 33 locked in adjusted position; this means comprises a small -block 39 (Fig. 6) positioned in a recess in the vmember 33 and having an inclined faceV lying close to a complementally inclined face of the shelf A3|). Threaded into the block 39 is the lower end of a spindle 4I rotatable in an upwardly projecting boss 43 on the memberv 33. The spindle 'has a shoulder 45, which is arranged to engage 4the, upper face of the recess in which the b1ock`139 is positioned. By rotation of the spindle by a handle 41 secured on it and resting upon the top of the boss, the block can be raised or lowered. When the block is thus lowered, its inclined edge is forced against that of the shelf 30, and prevents movement of the supporting member 33 upon said shelf. The supporting member has a transversely extending guideway 49 (Fig. '1), and movably mounted in this guideway is the sli-de I9. Passing upwardly through a vertical bore in the slide is a sleeve 5 I integral with one of the band-clamp-operating arms II and in the sleeve is mounted a stud 53 formed integrally with the other of the band-clamp-operating arms II. By moving the supporting member 33 forwardly or rearwardly of the machine, as just described, the slide I9, and therefore the ban-d-clamp, will be correspondingly moved so that shoes of different sizes may be accommodated in the machine.

For adjusting the band-clamp laterally of the machine, there is provided a lever 55 pivoted on the sleeve 5I. The lever has a rearwardly extending lug 51 (Figs. 4 and 7), to which is attached one end of a link 59 secured at its other end to the supporting member 33. By swinging the lever 55 about the sleeve, since its lug is prevented from transverse movement by reason of its connection to the member 33, the sleeve 5I,

. and hence the band-clamp, will be moved along the ways 49, transversely of the machine. For maintaining the transverse adjustment of the band-clamp, the lever 55 is provided with a pair of stop-screws 6I, 6I threaded through the lever at opposite sides of the sleeve and arranged to abut against stops 63 (Figs. l and 1) on the supporting member 33. The stop-screws may be so adjusted that no transverse movement of the lever, and hence of the band-clamp, can take place.v Consequently, they may be made use of to hold the band-clamp in the desired position relatively to the heel-presenting device. On the other hand, it may be desired that a heel be attached to a shoe in such a manner that it is not located centrally with respect to the heel-end of said shoe, but has its longitudinal center-line offset from the longitudinal center-line of the heel-end of the shoe-bottom toward the outer side. In this case, the stop-screws may be so adjusted that the band-clamp may be moved into either of two positions determined by engagement of said stop-screws with their corresponding stops 63. By this means, the band-clamp may be adjusted quickly to adapt the machine for use on right or left shoes by manipulation of the lever 55.

To provide clearance for the presentation of a heel to the machine and to enable easy positioning of the counter-portion of a shoe in the band-clamp, means is provided for raising said band-clamp, so it is spaced well above the support I, and for holding it in such position until just before the machine is started into poweroperation. For this purpose, there is on the vertically slidable bracket 21 a cam-piece S5, this being so positioned upon the bracket that it will be engaged by a roll carried by the well-known loscillatory nail-loading device, which I have not illustrated. When this device, with its load of nails, is swung into position over the support I, the roll engages the cam-piece 65 and lifts the bracket 21 and the band-clamp.

For holding the band-clamp in its raised relation while a heel and a shoe are being positioned in the machine, there is pivotally mounted on the bracket 21 a catch B1 (Figs. 1, 2 and 4) in the form of a bell-crank-lever, and co-operating with this catch is a latch 69. The latch is pivoted on the fixture 25 `and a spring 1I (Fig. 2) tends to move a projection on its lower end into contact with the catch. When the latch 69 is released, as hereinafter described, the slidable bracket 21 will descend. In order to determine the extent of downward movement, so that the band-clamp will be positioned correctly, there is threaded through a block 13 trunnioned at the top of the bracket the lower end of a link 15. The upper end *or 'the link `is .threaded 1in .a `second block "I6 '.trunni'oned in the end of one farm 'of fa bell- Trank-lever "I1 fulcrumed on `a plate T129. This `:plate terminates the pressure-plunger '91 of the nfachlnefandhasTmovablelupon it, `fo`re and aft fof *the machine., la slide AT95 Mon whic'h'is pivoted -at 9`3 a :jack-post '-91 '-(FgJZ). yThe otherfarm of the rbell-crank-lever @constitutes movement-limit- :fing means for'the fbr'aoket, l it -being arranged Ito 'istrike'a'ganist aib'os's 35:1 A:on'thefpla'te '19 upon-discenga'gement -of irthe ila'teh Jt9. To 'prevent the braeifel'.fromi'movi'ng down too quickly and causig an'undileshock -by'the s'trkingfof the Stoprarmofthe lever 'H againstthe boss 581, there is .fprovlided a, light torsion-spring L83, surrounding `thefulcrum of the levenffor 'counterbalancing the Weight df Ythe bracket and the vsupported parts. 'Ilhe'link '15 has riglht and leftfscrew-threads lon 'its'opposite ends, softhatby v'rotating the link the slidable bracket, 'an with it the band-clamp, Vmay -be`adjustediup or down relatively tothe support l Dto'nc'aiise it 'to occupy the 'desired position `for :supporting a shoein the "machine For releasfing the V"catch 761i Sfrom the llatch e9 to Iallow the bracket 21 to move down, fthe catch hasfsecured "tolit'one nd of a 1in-85 (Figs. 4 and 6). Attl'le .ppsite fend, tl'iie links 'lco'up'l'ed to 'Ta lhandle '581 ipiv'otedf'on 'the lever 55. By depression o the :handle u'l'the fcatc'h 267i is caused 'to move about dt's pivot y"out o'f 'eng-agement with the latching- =n1eniber69.

i Thefjack-.pos'tfll 1 isprdvided with a member 89 iforengaginig thefc'rownor top of a last, it 3being mounted for movement laterally :of ythe lpost and Falso for tipping movement about 'anaxis extend- :ing laterally lof the machine. The post Ais Vprolvided with a rearwardly extending arm '99 carry- :ing "ait it's'zrear'end a'roll 51191 (Fig. `2) entering an 'iL-shapedslotifil?, in the plate T39. Fhes'lofthas a straight Vho-rizonta'l -por'tionland at its -front end la portioncurveddownwardly about the axisof the pivot 93. Normally, the rOlIisatthelrear'end 'of the horizontal portion of the slot, so that the ip'ost 91 exten'dsvertically. "Whenfa shoe, as contrasted with a`boot,i's heingopera'ted on,-'the post is always maintainedrin 'tliis vertical position, ibecause-suicient'clearance eX's't's for the 'presentati'on lof a shoe to the band-clamp. Tf, "however, afbo'ot is to beapplled to the fpost, fit will benecessary to lmove 'the'sli'de 95, fwith the postand the Lroll forward, r'and `th'ento swing lthe post -forward las the 'roll enters "the curved portion 'o`f 'the slot. To relieve 'the operator 'of the 'necessity or actuatingthe handle'l to vrelease the Iloraclre't 'i7 from the latch 519,.'so it 'may mo'v'e downtocarry 'the bandecl'amp into operating position when va 'boot is being jacked, 'means is provided `for automatlcally releasing 4the bracket 'for 'downward movement when `the fpost`91 is swung fback into position to carry the 'boot into'the "band-clamp. The latching-member 59 'has fan upwardly 'projeoting arm to which is pivoted a link 195 (Fig. y2). The forwardend of the `lin-k 1151pass'e's through a studglll'! yprojecting from an iarrn 1199 pivoted on the plate "19. threaded =o'n Ythe `link v'in -front 'of the farm '199. Pivoted on the arm is a vpawl 1'13 backed by a spring-plunger 115, which Urges 'the pawl 'in 'a clockwise 'direction until -a Stop-face "116 Yonthe pawl contacts with the arm 199. The `pavvl is arranged to lie over a ha'rden'ed's'te'el strip `lll' on the yarm 99 of the '.post 191, 'so that when th'e ypost is'iswung-rea'rwardlyintothe machine to carry a boot Vinto `position to have a heel attached, the Vstrip lflflpacting through thelpawl,` wil1fswing fthe fafrm i199 inafdireotion tocauseforwardmovement df the link 195. l"Ih'is Will'actuate the latchingmeinber 69 to lfree the bracket 2-1,so it will lbe unnecessary orthcoperator to actuate the handle 81. As the roll 111931 -onthe arm 99 reaches the top of'the-curvedportionfofthe slot 193, the pawl 1 I3 iainclf'the-s'trip 1li" willbe separated. The arm Y|119 Awill then be again carried `into -a position such 'tl'i'atwhen'the'postBI is moved to its boot-receivin-'gpositim the'pawl and strip will-'contact with 'one-another in `-readiness for tripping the latch "upon preser'itation of the next boot in operating 'DSL Fo'r closing theband-clanipabout a shoe-upper 'applied theretofthere are two cams 11'9 and 12| (Fg.f5) `r'una'vertical cam-shaft v|23 journaled in the lsnpp'orting -mernber `3/3. The cams are Yarian ed to 'contact 'with rolls 'F25 and -1 21, respectively, monili-ted on the `right operating arm 1-1 and on an exten-sion |29 o'f the left arm 31|. aspri-ng I131 inter-connecting the arms serves to nfiainltain the rolls in engagement with their cams. For rotating the cam-'shaft to cause the bandfclanlp tofclosesaid shaft has a 'transversely extending-a'rm '-Isecnredthereon. A'link 135 connect's ftliisfarin to 'afse'c'ond arm 131 fast upon a 'ifll'rtatabl'e upon thesupporting member 33. falso secured to Vthe pin `|39 `is a 'forwardly extending member 'M1 having a lvertical pin |43 a'tafble lupo'n fits '-forward end. Threaded 1th-roiiglfi-il'ie pin 143 is a horizontal rod 145 which has :a nger-piec'e 'F47 by which it emay be rotated. The rod 1335 is also j`threaded through a vertical pin 149 rotatable upon a forwardly eX- 't'e'nding Iarmpilalbell'-crank-lever V|51 pivot'edby ta (pin 4"-1153 retatable in the brachet'Zl. The other al lnfof the bellecra'nk-lever-is `-aittaclied to a Vreariw rdlyetending rod 155 (Fig. il) which normall-'y holds :said "f'leve'r =against rotation about 'its pivot, 'The screw-'threads which pass through the 'pins W9 'fand FC5-9 vvare 'right and left, so that 'b'y 'r-taftlohof 5therod11555, While the lever 15| is lrel'l 'stationary-'the member |41 will be moved. Thisjthfrough the arms 133 and 13T and link 135, K`will causethertationof 'the'c'arns |19 and 121 to linove t'hearrn's v12|, i|"I of vthe band-clamp away .from eachother or Ipermit them to approach.

The rod i155,-xirhi'ch is connected to the lever 1151,fis "joinedatits rear 'end vto the'upper end of th'e i"upwardly extending Varm of a bell-crank-lever '1:51'1 Ipivoted on a stud |59 'on the frame of the machine (Fig. 3). The lever |51 has a forwardly eit'e'ndin'g a-rmto Lwhich is pivotally connected 'theilp'perfen'd of a `rod11, which at 'its lower end rpass'es ftliroiifgh the pivot-pin 193 of a lever |65, safid -`pin being rotatable 4in the machine-frame. Afspring 181, surrounding thero'cl 16| and confnedbetweenthe lever 155 and a collar |99 fast i'nthelrod, -normaullyurges the `lever |51 in such 'direction r'as to Vcause the rod 155 to move the fbahiieclam'p-:arms '111, 1| toward each other. In Vorder to h'ol'd the band-clamp latched open, when Athe.'inacliine is idle'and the spring 161 in conditionready lto move the band-clamp into shoenpper-clamp'ing position, the forward end of the flever )165 has pivtedto it an upwardly extend- Vi-n'g bar f1 FH. "To the upper end of the bar is sefcuredalatch-plate 51'13 (Figs. 1 and 3) ,this latchplate bei-ng adapted tocontact with a lwear-plate rearwardly of the machine, and with the parts in their normal positions, the latch-plate 13 1s held in Contact with the Wear-plate |15 on the lever |51, so the spring |61 is maintained under compression with the band-clamp open.

For moving the latch-plate 13 to free the lever |51, so it may receive the action of the compressed spring |61, the bar |1| has pivoted thereon a pawl ISI. A spring |19 connects a forwardly extending tail of the pawl to the frame of the machine, so that it tends' to swing said pawl counterclockwise, as seen in Fig. 1, into contact with an angled face of a block |83 attached to a substantially horizontal rod |85. At the rear extremity the rod is guided upon the frame, while the forward end is pivoted to a member |81 secured to a Vrock-shaft |89, which is turned by a link |90 raised upon depression of the treadle 4. At this time, the rock-shaft is moved in a clockwise direction and the rod |85 is moved forward. The

rod carries in the same direction the block |83, which by engagement with the pawl |8| will swing the bar |1| to free the lever |51 from the latchplate |13 for actuation by the compressed spring |61. The shaft |89 is rocked during the initial part of the downward movement of the treadle and consequently early control of a shoe by the band-clamp is assured. Since its actual movement into shoe-engaging position is brought about under the action of the spring, the operator is relieved of the necessity of moving, through the treadle, the band-clamp itself. Therefore, the amount of energy expended by the operator is lessened.

It may occasionally happen that, due for example to the operator not presenting a shoe correctly to the machine, it is desirable to release the shoe after it has been gripped by the band-clamp land before the power-operation of the kmachine is started. For this purpose, the stud |53 by which the lever is pivoted has also pivoted thereon a handle ISI. The handle has a downwardly extending web |93 (Fig. 5) arranged to lie against an abutment-screw |95 threaded in anv arm of the lever, so that upon rocking the handle |9| counterclockwise said lever may be moved to open the band-clamp. Simultaneously, the rod |55 will be moved forward to swing the lever |51 and compress the spring |51 once more.

The latch-plate |13 is also caused to contact with the .wear-,plate |15 to hold the spring so compressed.

As described in the previously mentioned Patent No. 2,085,851, the machine may be used for spanking a top-lift on a heel after said heel has kbeen attached to a shoe by the machine. It will be appreciated that if a heel only is to be attached, it is desirable to re-load the spring |51 before the end ofthe machine-operation and to open the band. But if the machine is to be used for spanking a top-lift onto a heel, the band-clamp should be prevented from opening to release the shoe upon the stopping of the machine between the heel-attaching and the top-lift-spanking eycles. Means has therefore been provided which may be caused to act, under the control of the operator, either to open the band-clamp and compress the spring |81 at the end of but one cycle of operation of the machine, when heelattaching only is to be effected, or to cause opening of the band-clamp only after a second cycle of operation when a top-lift is to be spanked on an attached heel. This means comprises a bellcrank-lever |91 (Figs. 1 and 3) pivoted on the stud|59 and. carrying a pin |99 on the forward Vendfof its forwardly extending arm. A block 20| is supported by the vpin |99 and may be held in one of two positions relatively to the lever by'a spring-plunger 203 on the lever engaging either of two depressions on the block. In one of these positions, a roll 205 on the bar |1| lies against a downwardly and rearwardly sloping cam-face 201 on the block 29|. In the other position, the camface 201 on the block is held away from the roll 295. As is common in heelers of the character of that now under consideration, the illustrative machine is provided with the swing-plate 209 (Fig. 1) carrying a heel-positioning device and a top-lift-positioning device. This swing-plate is arranged, first to occupy such a position that a heel is presented over the support Then, after the heel has been attached to the shoe, the swingplate is shifted to such a position that a top-lift is presented underneath the already attached heel. For use in heel-attaching without top-liftspanking, it is not necessary to cause the oscillation of the swing-plate, and, as above stated, after the heel-attaching operation, it is desirable to release the shoe from the band-clamp and to recompress the spring |61. In the latter case, the block 20| is moved to the left (Fig. 3), so that its cam face 201 is held away from the roll 205. Then, when near the end of the power-operation of the machine, the clutch-throw-out lever 6 is moved to cause the machine to be stopped, the rod |11 is rst moved down and then up to its original position, in readiness for the next cycle of the machine. The downward movement of the rod |11 will cause the latch-plate |13 on the bar 1| to be moved up, so the spring |19 will carry the latch-plate over the wear-plate |15 on the lever |51. Thereafter, the upward movement of the rod |11 will cause the latch-plate 13 to move downwardly, moving the bell-crank-lever |51 with it, opening the band-clamp and re-compressing the spring |61, in readiness for the next cycle of the machine.

When atop-lift is to be spanked on to an attached heel, however, the block 20| is moved to the right, so that the cam-face 201 thereon will contact with the roll 205 on the bar |1|. Upon actuation of the machine-treadle 4 of the lever |51 is released, through the movement of the block |83 to the right, to receive the action of the spring |61 and cause the band-clamp to close about the shoe upper. When near the end of the machine-cycle the bar |1| with its latch-plate 13 is carried first up and then down, as a consequence of the movement of the rod |11 oy the stop-lever 8, the roll 205 on the bar |1| will travel along the cam-face 201. Owing to the shape of the cam-face, the latch-plate will be prevented from engaging the wear-plate |15 on the lever |51. Therefore, when the power-cycle of the machine is ended, the band-clamp will remain in engagement with the shoe-upper.

For the top-lift-spanking cycle of operations, the swing-plate 2'99 will be moved to carry a toplift under the already attached heel, and, as seen `in Fig. 1, there is connected to the swing-plate a thelever will carry the cam-face. 201 on. the blockv 210|V away from the roll 205' on the bar |1|. Therefore, when the bar receives its longitudinal movement near the end of the machine-cycle, the latch-plate |13 will be able, once more, to engage the Wear-plate on the lever |51 and move that lever to open the band-clamp and compress the spring` |61.

Y In using our improved machine for attaching a heel tov a shoe and for spanking a top-lift on the attac-'hed heel, the post 9| will be in its vertical` position and the nail-loading device will have been supplied with a load of nails. A heel and a top-lift will be placed in their respective positioning devices on the swing-plate 209. The p,- eratcr will then cause movement of the nail-loading device over the support to deliver a load of4 nails thereto, and, as the loading device is thus actuated, the cam-roll thereon will engage the cam-piece 65 and lift the band-clamp vertically away from the support The catch 61 will engage the latch 69, thereby holding the bandclamp raised. The swing-plate Will be moved so that a heel thereon Will be position over the support and the counter-portion of a shoe-upper will be introduced into the band-clamp. While still holding a shoe-upper in place with one hand, the operator will depress the handle 81 with his other hand to release the band-clamp mechanism for downward movement. After the band-clamp has reached its operating position, determined by engagement of the free end of an arm of the bellcrank-lever 11 with the boss 8| on the plate 19, the operator will depress the treadle 4. The first part of the depression of the treadle will cause rocking of the shaft I S9. This lowers the lastplate 89 to press the shoe against the heel with preliminary pressure by rotation of the member |81, an upwardly extending rod 2 l5 connected to the member effecting this. At the same time, the rod |85 will be moved forwardly to disengage the latch-plate V53 from the wear-plate |15, thereby allowing the compressed spring |61 to move the lever |51 in a counterclockwise direction as seen in Figs. l and 3. This movement of the lever will cause the band-clamp to close about the counterportion of the shoe-upper. Further depression of the treadle will trip the clutch of the machine and initiate its power-operation. The plunger 91 will thereupon be lowered to cause the post 9| -to press the shoe and heel more firmly together, and then the heel-attaching nails will be driven from the support through the heel and into the shoe. The end portions of the nails are left projecting slightly vfrom the bottom of the heel in preparation for the spanking of the top-lift on the heel. When near the end of the power-operation of the machine, the Clutch-throw-out lever 6 moves the rod |11 first down and then up, and the latchplate |13 will be moved by the bar |1|, but owing to the cam-face 201 on the block 20| engaged by the roll 205 on the bar, the latch-plate will be prevented from contacting with the wear-plate |15 and opening the band-clamp. As the machine comes to rest, the post 9| will `be moved up to relieve the pressure on the shoe. The swingplate 209 will then be shifted to carry a top-lift underneath the attached heel, and this movement will cause the lever |91 to be swung in such a direction that the cam-face 2&1 will be carried away from` the roll 2'05 on the bar |1|. The bandclamp therefore remains closed. The operator Will then depress the treadle a second time, and pressure will be applied by the plunger 9 1 to cau-se the top-lift to be impaled onthe projecting endsoisthe nails. the power=operation of the, machine nears Iitscompletion, thelatch-plate |.13u will not be prevented from; engaging the wear-V plate II15 owing.tolthe.disp.ositionotthe,block 20|'. Iilngagementv on the. latch-plate. .with the. wear.- plate. will; move ther leven |151; in a cloci'gwise,v direc-tion, asseen. in Eigs. 1 and:3:to causel opening ofc the bandfclampxand re-compressionA of the. spring. IH: in: readinessV f.oroperation on the next shoe.

Hav-ing.- descri-bed. thel invention, what We. claim as.V new/and.. desire to. secure` by l Iiiettersy Patent of. the United States is:

1. In a heel-.attaching machine, iastening-.inserting mechanism, means, for. engaging the. counter-.portion of a shoe to. locate it for. the insertion. onthe fastenings, said engaging means` being movable. to. receive 'and release, a` shoe or` to. clamp it for.` the inserting operation, and means made .eiective under the. power of the. rnach-i-nefor moving. the shoes-engaging means.

2-. In av heelfattaching machine, fastening-in-` serting mechanism, means for engagingV the counter-portion of. a shoe to locate it for. the insertion`- of the. fastenings, said.. engaging` means being movable into open or closed relation, means for` closing: the, engaging means, and means movable under.` the pcfrwerA of'v the machine for opening the engaging Vmeans andrendering the closing means. efiective. Y

3. In a heel-.attaching machine, fastening-in-` serting mechanism, means fon engaging the counter-.portion ofl a shoe to locatefit for. the insertionfof theffastenings, said engaging means being movable into ope-n or closed relation, means for closing lthe engaging means, means movable uncler the power' of the machine. for opening the engaging means and rendering the closing means effective, means for: temporarily retaining. the engaging means in its open position, andr means movable by the operator .to releasethe engaging -means for closure.

l 4. In a heel-attaching machine, fastening-inserting mechanism, means for 'engaging the counter-portion of a shoe tol locate itfor` the insertion of the fastenings, said engaging means being movable to receive and releasef a shoe or to clamp it for the inserting cperationa member movable upon starting the operation of the machine, a member movable upon stopping the operation of the machine, means controlled .by the starting member for moving the engaging means to clamp the shoe, and means controlled by the stopping member for moving the engaging means to release the shoe and to prepare for the clamping of another.`

5. In a heel-attaching machine, fastening-inserting mechanism and pressing mechanism acting in successive cycles to perform a pluralityof operations upon a shoe, means for engagingthe counter-portion of a shoe to locate it for such operations, means made eective under the power of the machine for moving the shoe-engaging means, and means for preventing the movement of the shoe-engaging means between the successive cycles.

V6. In a heelattaching machine, fastening-inserting mechanism and pressing mechanism acting in successive cycles to perform a plurality o f operations upon a shoe, means for engaging the counter-portion of a s hoe to locate it for such operations, a Ymember vmovable upon startingA an operating vcycle of the machine, a member movable -upon stopping such operation, means controlled yby the starting ymember-to move the en- .7.1In a heel-attaching machine, a band-clamp` provided with movable arms, and, means made eife'ctivefunder the power. which produces an operating cycle oi the machine to move the arms.

8. In a heel-attaching machine, a band-clamp provided with movable arms, and means made effective under the power which produces an operatingcycle of the machine to move the arms relatively to each other.

9. In a heel-attaching machine, a band-clamp provided with movablearms, means made eiective under the power of the machine to move the arms, and means arranged to be set by the operator for preventing such .movement of the arms.

` 10. `In a heel-attaching machine, a band-clamp providedwith movable arms, means acting under the powerpf thev machine forseparating the arms, and means prepared for operation under the power Vofthe' machine for olosingthe arms totclamp the work.

.11. In a heel-attaching machine, a band-clamp provided with movable arms a spring acting to close the arms, a member, movable under the power of the machine toload the spring, ,and meansarranged to move the member to release the spring ior its action upon .thepband-clamp.

. 12.., In aheel-attaching machine, a band-clamp provided with movable arms, aAspring acting to close the arms, a member movable under the f i power of the, machine to load the spring, and a plurality., of :independently Y, operable means arranged-.to move the member to release the spring for, its action upon ther band-clamp.

13. In a heel-attaching machine, a band-clamp provided with movable arms, a lever movable to open and close the arms, alspring acting upon the lever to close the arms, a movable latching member engaging the lever to hold the arms open against, the force of the spring, means for moving the member toload the spring, and means for moving said member to ,release the lever Y, and permit the spring to act. t t

14. In a heel-attaching machine Yhaving a starting member and astopping member, a bandclamp provided with movable arms, a lever mov.- able to open `and close the arms, a springY acting upon the lever toclose theA arms, a movable latch-` ing memberengaging the lever to hold the arms open against the force of the spring, means connected to the stopping member forA moving the latching member'to load the spring, and means connected to the Vstarting member for ,moving said latching member to release the lever and permit-the spring to act. e

15. InK aA theel-attaching `machine having a starting member and a stopping member, abandclamp provided withrmovable arms, a lever movable to open and close the arms, a spring acting upon the lever tovclose the arms, a movable latching member engaging the lever to hold the arms open againstthe force ofthe spring, means connected tothe s topping member fory moving the latching membergandthereby the lever Vto open the. arms and load the spring; vIneens connected to the `,starting member yfor rmoving the latching member Vto `release the lever and permit the springto act, and means arranged vfor movement by the operator to eitherpermit or prevent the movement o1?Y the Vlever bythe latching member.

16. In a heel-attaching machine, abandclamp` provid-ed with movable arms, a lever movable to open and close the arms, a spring acting upon the lever to close the arms, a movable latching member engaging the lever to hold the arms open against the force of the spring, means for moving the member to load the spring, means for moving said member to release the lever and permit the spring to act, and means for preventing the return of the member from its releasing to its spring-loading position.

17. In a heel-attaching machine, a bandclamp provided with movable arms, a lever movable to open and close the arms, a spring acting upon the lever to close the arms, a movable latchtransverse guideway, a slide movable along the guideway, a shoe-engaging band carried by the slide, a lever fulcrumed upon the slide, and a link joining the lever to the support.

19. In a band-clamp, a support having a transverse guideway, a slid-e movable along the guide- Way, a shoe-engaging band carried by the slide, a lever fulcrumed upon the slide, a link joining the lever to the support, and means for variably limiting the extent of movement of the lever.

20. In a band-clamp, a support having a transverse guideway, a slide movable along the guideway, a shoe-engaging band carried by the slide, a lever fulcrumed upon the slide, a link joining the lever to the support, and stop-screws threaded through the lever arranged for engagement with the support.

1 21. In a band-clamp, a bracket provided with a forwardly extending guideway having longitudinally extending rack-teeth, a support movable along the bracket-guideway and having a transverse guideway, a pinion rotatable upon the support and meshing with the rack-teeth, a slide movable along the support-guideway, a shoeengaging band carried by the slide, a lever fulcrumed upon the slide, and a link joining the lever to the support.

22.` In a band-clamp, a bracket provided with a forwardly extending guideway having longitudinally extending rack-teeth, a support movable along the bracket-guideway and having a transverse guideway, a pinion rotatable upon the support and meshing with the rack-teeth, a slide movable along the support-guideway, means arranged to lock the support in its guideway, means arranged to lock the slide in its guideway, a shoeengaging band carried by the slide, a lever fulcrumed upon the slide, and a link joining the lever to the support.

23. In a band-clamp, a fixture, a bracket movable vertically upon the xture, means through which the bracket may be elevated upon the flxture, a shoe-engaging band carried by the bracket, a catch pivoted upon the bracket, a latch mounted upon the xture for engagement with the catch when the bracket is elevated, and a member connected to the catch and movable by the operator to release the bracket.

24. In a band-clamp, a fixture, a bracket mov.

ablevertically upon the xture, means through which the bracket may be elevated-uponY the fixture, a shoe-engaging band carried by the bracket, a catch pivoted upon the bracket, a latch mounted upon the fixture for engagement with the catch when the bracket is elevated, a member connected to the catch and movable by the operator to release the bracket, and means arranged to limit variably the descent of the bracket.

25. In a band-clamp, a fixture, a bracket movable vertically upon the fixture, a cam mounted upon the bracket and through which it may be elevated upon the fixture, a shoe-engaging band carried by the bracket, means for temporarily retaining the bracket in its elevated relation, means movable by the operator to release the bracket from the retaining means, means arranged to limit the descent of the bracket, and means acting upon the movement-limiting means for cushioning the descent of the bracket.

26. In a heel-attaching machine, a frame, a pressure-plunger movable thereon, a bracket movable vertically upon the frame, a shoe-engaging band carried by the bracket, means for temporarily retaining the bracket in a raised position, a jack movable upon the plunger, and means connecting the jack to the retaining means whereby said retaining means is moved to release the bracket upon movement of the jack.

27. In a heel-attaching machine, a frame, a pressure-plunger movable thereon, a bracket movable vertically upon the frame, a shoe-engaging band carried by the bracket, means for temporarily retaining the bracket in a raised position, a stop-lever fulcrumed upon the pressure-plunger, and means connecting the stoplever and bracket wherebyr said stop-lever limits the descent of the bracket.

28. In a heel-attaching machine, a frame, a perssure-plunger movable thereon, a bracket movable vertically upon the frame, a shoe-engaging band carried by the bracket, means for temporarily retaining the bracket in a raised position, a stop-lever fulcrumed upon the pressure-plunger, and a link variable in length and connecting the stop-lever and bracket.

29. In a heel-attaching machine, a frame, a pressure-plunger movable thereon, a bracket movable vertically upon the frame, a shoe-engaging band carried by the bracket, means for temporarily retaining the bracket in a raised position, a stop-lever fulcrumed upon the pressureplunger, and a spring acting upon the stop-lever to cushion the descent of the bracket.

THOMAS AUBREY KESTELL. WILLIAM RODERICK BARCLAY.

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