USRE19297E - Apparatus fok attaching heels to - Google Patents

Description

Aug. 28, 1934.

W. A. THUM APPARATUS FOR ATTACHING HEELS TO SHOES Original Filed Dec. 5, 1931 5 Sheets-Sheet l Aug. 28, 1934. w. A. THUM I APPARATUS FOR ATTACHING HEELS TO SHOES Original Filed Deo. 5. 1931 5 Sheets-Sheet 2 ,n f A w M w .TrOP/vrf Aug. 28, 1934. w. A. THUM l Re- 19,297

APPARATUS FOR ATTACHING HEELS TO SHOES Original Filed Deo. 5, 1931 5 Sheets-Sheet I5 @Trae/var Reissued Aug. 2s, 1934 UNITED STATES APPARATUS FOR ATTACHNG-HEELS SHOES' Walter A. Thum, St. Louis, Mo., assigner to United Shoe Machinery Corporation, Paterson, N. J., a corporation of New Jersey original iva-1,947,666, dated February 2o, 1934,

Serial No. 579,180, December 5, 1931. Applica- Y tion for reissue June y25, 1934, Serial No. 732,378

24 Claims.

This invention relates generally to shoe manufacture, and has more particular reference to novel apparatus for attaching heels to shoes.

Heretofore, so far as I am aware, heels have been applied to shoes in two steps or stages widely separated in the shoe-manufacture process, that is to say, an initial step during which the last is in the shoe, and a final step during which the last is removed from the shoe.

Such division of the heel-attaching process has been necessitated, firstly, by reason of the shoe-construction requirement that the last remain in the shoe vduring the several so-called heel-finishing operations and, secondly, by the heretofore practical impossibility of nailing the heel to the shoe Without rst removing the last therefrom, it being borne in mind that the heelsecuring nails are properly driven from the inside of the shoe outwardly into the heel.

The most immediate source of difficulty in the foregoing procedure resides in the hence unavoidable necessity of initially attaching the heel to the shoe, while the last is contained therein, thus, heretofore, limiting the heel-attaching meansl to 25 an adhesive applied between the heel and the heel-seat of the shoe.

Under such condition the shoe manufacturer is compelled to `suspend operations on the shoeassembly while the adhesive is drying, or, else,

employing such accessory devices, altogether for-A` paratus whereby there is established an efficient' and permanent metallic connection between the` 4 heel and the shoe which becomes a part of the use of extraneous temporary securing devices on the shoe-assembly during theY manufacture of the shoe. Although this invention is herein disclosed in connection with the preliminary attachment of heels, in preparation for a succeeding attaching operation, it will be obvious that novel features of my improved apparatus are equally applicable to attaching heels finally, and with the shoeV supported upon a jack instead of upon a last. l

' Andj with the above and other objects in view,

finished shoe structure, and entirely avoids the" my invention resides in the novel features of form, construction, arrangement and combination of parts hereinafter described and pointed out in the claims.

In the accompanying drawings (three sheets),

Fig. 1 is a side elevational view of a heel-attacnng apparatus of my invention, showing a shoe-assembly mounted therein in fastening receptive-position, the particular shoe-assembly shown including a so-called spike or Louis heel;

Fig. 2 is a fragmentary enlarged front view of the nail-setting operative mechanism of Fig. 1, other parts being removed;

Fig. 3 is a sectional view taken approximately along the line 3 3, Fig. 1;v

Fig. 4 is an enlarged fragmentary detail view of the self-adjusting presser-foot;

Fig. 5 is a fragmentary front view'of the clamphead carriage and its carried presser-footplunger, other parts being removed;

Fig. 6 is a rear view, partly broken away and in section, of the nail-setting mechanism of the machine, otherv parts thereof being removed;

Fig. 7 is a side elevational view, partly in sec-y tion, of Fig. 6;l

Fig. 8 is a bottom inverted plan view, partly in section, of the bed-plate and its carried apparatus;

Fig. 9 is an enlarged fragmentary side sectional view of a portion of Fig. 1, showing the selfequalizing clamping members of the machine in cto-operation with a shoe-assembly having a s'ocalled spike or Louis heel, the nail-setting mechanism being shown in final nail-driven position.

and the nail being set in the heel and the sole of the shoe; l

Fig. 10 is a fragmentary front elevational detail view of the presser-foot of Fig. 4; l

Fig. 11 is an enlarged fragmentary partly sectional view of the shiftable last-support of Fig. 2; Fig. 12 is an enlarged fragmentary side elevational `partly sectional view of the co-operating clamping mechanism of Fig. 1 in co--operation with a shoe-assembly inciuding a low or soi-called Cuban heel, other parts of the machine being removed;

ig. 13 is a fragmentary enlarged front view of the nail-setting mechanism with the. parts shown in final nail-driven position corresponding to Fig. 9, the upper portion of the shoe-assembly being broken away and other parts removed.

Referring now more in detail and by referencecharacters; to the drawings, which illustrate a preferred` embodiment ofthe invention, the main supporting frame A of the machine includes a, floor-plate 1 and upstanding standards 2 rigidly supporting, at a convenient elevation above the floor, a horizontal bed-plate 3. Fixed to and upstanding from the rear portion of the bed-plate 3 is a bracket 4 providing frontwise presented rearwardly inclined dove-tailed Ways 5, for reciprocably supporting a clamp-head B, presently to be more particularly described, the head B, however, including suitably formed members for slidingly engaging the ways'5, as best seen in Fig. 3.

Normally, the clamp-head B is yieldingly supported in elevated position on the bracket 4 by means of a suitable gravitationally acting member or weight 6 suitably co-operating with the clamp-head B by mea-ns of a cord 7 trained over a pulley 8 rotatably mounted at the top of the bracket 4, the ways 5 having suitable stops 5 for limiting the upward movement of the head B, as best seen in Fig. 1v.

For heel-mounting purposes, however, the head B is adjustably shifted on the bracket 4 for movement towards the bed-plate 3 by means of a pedaloperated shifting mechanism, which includes a plunger 9'firmly connected to the head B for depending therefrom slidingly in and through a split-housing 100 depending from the bed-plate 3, the housing 100 having co-operating ears engaged by the suitably threaded end of a clampshaft 101 extended suitably beyond the edge of the bed-plate 3 and provided with a handle 102, as best seen in Fig. 8.

The plunger is resiliently connected by means of a tensional member or spring l0, with a flooradjacent foot-lever or pedal 11, preferably pivotally supported from the rear end of the floorplate 1 for projecting forwardly through and from the frame A conveniently for foot-manipulation purposes by the operator of the machine.

The lever 11 may be releasably latched in depressed position by means of a spring-influenced :pawl- 12 latchingly engageable with a detent 13 upstanding from the floor-plate 1, the pawl 12 being operably connected for latch-releasing purposes with a toe-lever 14 pivotally supported on the lever 11.

Projecting forwardly from the head B rightangularly to the Ways 5, is a pair of transversely spaced arms 15, the inner faces thereof being suitably longitudinally channeled providing upper and lower opposing ways 16, 17, respectively, the

Ylower ways 17 being dovetailed in shape and provided with detachable bottom plates 18, 18.

` Including a body portion 19 suitably formed for sliding co-operation with the ways 16, 17, is a carriage C having intermediately threaded therein a side-projecting clamping-stud 20 working in and through a longitudinal slot 21 provided in one of the arms l5, the stud 20 carrying a handle 22 adapted for carriage-locking purposes'for hubwise impinging of the arm 15, as best seen in Fig. 5; f

Reciprocable in and through the forward end of the carriage C is a rack-plunger 23, the end of the body-member 19 having a split hub 24 upstanding therefrom for embracing the plunger 23 e and carrying co-operating lugs 25 in which is suitf end of the plunger 23 is a set-collar 27 impingeable with' the hub 24 for limiting the downward movement of the plunger, the latter being guided against rotation in the carriage bymeans of a key 28 suitably mounted in' the carriage for sliding co-operation with a way 29 longitudinally provided in the plunger 23.

Shiftably supported for oscillation on and from a depending rounded nose-piece 30 projecting from the end of the plunger 23 is a swingable self-adjusting presser-foot 31 having a suitably scored bottom face for heel-engaging purposes vand a toothed or serrated arcuate upper face 31 may, if desired, be locked in predeterminedV position by means of nuts 32 threaded on bolt 32.

Pivotally mounted in a suitably downwardly opening chamber provided in the rear portion of the carriage-body 19 is a half-pinion 35 having meshing co-operation with a series of rack-teeth 36 provided on the rrear-face ofthe plunger 23. Preferably integrally depending from the pinion 35 is an arm 37 yieldingly urged for rearward oscillation in the vertical plane of reciprocation of the plunger 23 by means of a tensing memberv or spring 38 extended between the arm and the head B, as best seen in Fig. 1.

Adjustably shiftable on thearm 37 is a heelsaddle 39 provided with an arm-engaging-wingnut 40 for locking the saddle 39 in adjusted position on the arm 37. The saddle 39 is provided with a forwardly presented face concave horizontally and convex vertically, and provided for heel-engaging purposes with a suitably resilient or felt-like lining 41, as best seen in Fig. 9.

Disposed in the vertical plane of reciprocation of the plunger 23 and approximately, as presently appearing, in vertical alinement therewith, is a nail-setting mechanism D, including a guideblock 42 extending through, and suitably secured to, the bed-plate 3. The top of the guideblock 42 is suitably enlarged providing an upwardly opening chamber 43 in which is slidingly mounted a vertically shiftable last-support 44 having an inclined rearwardly projecting or,

end a rollery 50 operably engaged with a retracted p j or neutral portion of heart-cam 51 normally inoperative but adapted when actuated for rocking the lever 49 for upwardly shifting the slide 47 in its way 46, for a purpose presently appearing.

The cam 51 comprises a neutral portion b, a nail-driving or rising portion c, a pressure-releasing or valley portion d, and a recompressing or rising portion e merging into the neutral portion b, for purposes presently appearing.

The lever 49 is mounted on a shaft 52 fulcrumed in an inverted resiliently supported yoke 53, depending from the bed-plate 3, the shaft 52 lill? projecting end of the iingers 73.v

rol1er.50 on the ycam '571. y

" Thedepsadmgen. s .of the' nous '56 arri .verf Strong CQmpfeSS-QD members r Springs 57 engaged betweenvthe `.lugs and suitably adjustable bolt-'carried members 5 5', thesprings 57i being normally uncompressedo1jfreelyextended position and the lugs 55 beingmoreor less spaced from *the plate 3, as bestgseen in Fig.2..'r y

Iihe upper plate-projectingends ofi the bolts 56 have engagement with. a, .transyerse-.equalizer-- bar 5 8 bearing o n an upwardly presented arcuate seat provided on; the end 590i a `presently de-. scribed rockable lever 60,' the lever end 59 furnishing a floating Asupport for thebolts 56 lift-V able from but normally resting upongthe plate 3 for suspending the bolts 56 therefrom for supporting the yoke 53 in its described relation with theplate 3. The ylever 60 is pivotally, as at 6l, supported in and through the adjacent wall of the chamber 43 for projectingits other end into a recess 62 provided in, for pivotal connection of the lever 60 with, theheel-support 4.4, as best seen in Fig. 11.

Detachably covering the rear of both the chamber 43 and the way 46 is a retainer-plate 64, having in its'lower way-covering portion a pair of transversely spaced parallel vertical and downwardly opening slots'65, in whichreciprocate respective brackets 66rearward1y presented from and shiftable with the slide 47.

The horizontal upper vfaces of the brackets 66 are provided with respectively parallel"grooves or paWl-seats 67 complementaryto 'for rotatably supporting, the cylindrical hubs of opposingly swingable pawls or.` dogs 68, the latter being tensionally engaged by-suitable'ilat springs orother tensing members 69, for normally urging the pawls 68 in co-operativepresently-appearing clasping movement swingably one .toward the other. The

pawls 68 are retained in their seats'by means of studs .or other suitable members 70 lthreadedly projecting from the adjacent slide-block 47.

Disposed on the lowerend of the'medially de-Y pending portion or tongue 71 of the platey 64, for rearward presentationv Vtherefrom between the slide-brackets 66, is a lug k72 carrying a. pair of spaced parallel upstanding pawl-trip-ngers or track-bars 73, disposed in 'the path of movement of the swingable ends of the pawls 68,thelatter normally, that is, when theslide 47 is in depressed position, residing on the outsideof and below the Disposed normally in elevated. position between the ngers 73 is a reciprocablerack-bar 77 provided with a longitudinal way 74 closed atits lower end, which'way 74 is slidingly engaged: by a key or pin 75 supported jfrom a guidefplater76 transversely in turn supported by-and j between the upper rear-presented ,ends-of the brackets 66 for impingement by the key 75 otv the lower Wall of the way r74 for limiting the movementof-- the bar 77'depends a plunger 78 guidingly reciprocable 'alsoin' and through the lug 72, the plunger 78 carrying a coil spring79 or like tensional member', having its lower `Aend resting in a suitable recess provided in the lug 72 and adapted with its upper .end Vfor normally'fimpinging and resiliently supportingthe 'rack-bar 77 for depressible actuation thereof more or less between the pawl-tripfingers 473'." v z AOrritsY opposite paWl-presented faces the rackbar, "fl,7 cafriesrespective series of teeth 80 normally" by s'aid'ingers.73 but adapted vto be'claspingly engaged bythe pawls 68 as thelatter over-ride the suitably curved ends of the fingers 73 on .upward shifting actuation of the slideblack 47.'.-

The upper end of the rack-bar 77 is suitably bifurcated or yoked for pivotally supporting the lower end of an inclinably upstanding elongated n ail-pin'or plunger 81, suitably reciprocably andv swingably mounted in and through anaperture or'slo't 82 vprovided in the superimposed last-supporting shelf 45 aforesaid.

1.Preferablythe.nail-plunger 8l is possessed of magnetic-qualities, for reasons soon to appear.

At this time I may briefly describe the cam 51 and its actuating mechanism best seen in Figs. 5,- 8 and 13. The cam 5l isv of conventional so-called heart-shape, and is mounted on, for` rotation with, a 'shaft 83, journaled in brackets 84 suitably depending from the bed-plate 3. The shaft 83 is adapted to be intermittently actuated, one revolution at a time, through a suitable conventional formof so-called fpunchvpress clutch mechanism generally designated at 85, and actu.-` able for lsuch purposes at the will of the operator, by meansof asuitably supported foot-pedal 86 having .operative connection with the clutch by means' of a clutch-rod 87,.as best seen in Fig. ll, the s haft 83 being normally restrained against rotation by a suitable friction-brake 83 yieldable, however, to clutch-actuation of the shaft.

For actuation of'such-mechanism, I prefer `to proyide a'motor 88 or other prime-mover means having operative connection as at 89 with a countershaft 9D journaled in a bearing 91 depending from the bed-plate 3 and carrying a pinion 92,V meshing with a gear 93 rotatably mounted on the discontinuously rotating shaft 83 of the clutch 85 (Figs. 1 and 8). v

One form of shoe-assembly, adapted to be ernployed in connection with myinvention, is fragmentally shown in detail in Fig. 9, and I may here state that the method of attaching a heel to a shoeyvhich my instant invention is designed to accomplish, is more f ully set forth in my copend- `ing application for Letters Patent for Method of attaching heels to shoes, led'March 20, 1930,

Serial No; 437,548, to which reference is here.-l

by made. Y lThe shoe-assembly includes a shoeupper E already made and ready for the attachment of the heel F thereto, the upper Eybeing of any ma-` teriaLfsize, or "shape, and including the usual insole 94 `and outsole 49 5. yThe heel portions of the insole are'usually reinforced by a berpiece 94 and disposed between' this and the outsole is a filler 96 usually of cork or like' readily compressible material, the edges 9 6" of the shoe-upper being pulled into marginal overlapping engagement with the yliber-piece 94"', the outsole 9 5par 111.1115 in llr'rfl gif/@flapping the upper-edges 96.

w The heel-portion .of the ,outer sole is cut We? .0r -trimmed for proyiding a heel-seat con-` roo "nsf

forming as nearly as possible to the contour Yof theheel Fjhowever, as this step is usually `per formed byy hand, its shape varies and is seldom perfect. The heel F, generally of wood or of some other Suitable material or composition, is hollowed out upon itsnormally upper surface so as tor form a cup'97 preferably concave in shape, adapted for co-operative disposition to fit the heel-seat of the outsole for rim-wise engaging the adjacent pulled-over margins 96 of the upper E;` this fit should be as snug as possible for enhancing'the appearance of the shoe, 'for increasing the strength fof the attachment of the-heel" on the shoe, and in order that'the adhesive therebetween, if used, shall most eiiiciently perform its intended function. j

For the purposes of my invention, the shoe-last G is provided with a way or channel 98extending through the top and at the rear of the last cone 99, vfor reception of the nail-'plunger 81, and being directed for' nail-driving purposes suitably through the bottom of the last approximately at the medial portion of the heel-cup 97'of the shoemounted heel F as shortly appearing.

In describing the use and operation of 'my invention, it will be borne in mind that the machine is preferably employed at an intermediate stage Y of' shoe-manufacture, the upper E 'having been formed` on and containing the last G land the heel-seat also formed on the sole of the upper. I have found the operation now to be described may be accomplished with most facility and dispatch if the shoe-assembly be held'by the operator in inverted position, hencefto avoid unnecessary manipulations of the shoe-assembly, and, further, to provide for easiest visual inspection of the position of the heel on the shoe during vthe nailing operation, I provide vfor mounting the shoe-assembly in the machine in suchf inverted position, that is, with the sole of the shoe in the vision of the operator. 'l

The operator holdslthe previously prepared upperand last-assembly, E-G, upright with one hand, while, with the other hand, he drops a nail, as H, point foremost into the last-channel 98, and then, inverting the assembly E-G over the plunger 81, deftly inserts the latter into the last channel 98 for magnetically holding the nail H upstandingly therein.

The operator then brings the front edge ofthe last-cone 99 into rockingengagement with and forwardly inclines the assembly E-G on, the last support 44. A suitable adhesive being applied to the cup 97 of the-fheel-or to the heel-seat ofthe shoe, or both if desired, the operator places'the heelF neatly and precisely on, with the heel-cup- 9'7 opposing, the heel-seat of the shoe, and rocks the shoe-assembly E--F'G rearwardly on' the last-support 44 until the plunger 8l, swinging in shoe-guiding-manner rearwardly in the slot'82, impinges the rear'wall of the latterfor disposing the plunger in aproximatelyvertical position, the plunger 8l penetrating the .lastchann el 98 until the plunger-impelled nail H point-wise resides against the inner-sole 94 of the `s hoe, as best seen in Fig. 1. Y The extent to which the plunger 81 will penetrate the last depends upon the length of the nail H and the depth of the last-cone 99, which latter varies, of course, with different sizes and'makes' of shoes. *For initially conforming its nail-setting position to such variations in the last, the plunger 81, afterimpinging `its carried-nail H with the insoleof the shoe, is depressed from its normally `poses presently appearing.

elevated position, yieldingly upon the spring 79, the rack-bar 77 vbeing correspondingly downwardly shifted between the fingers 73. At this time the operative, still holding the heel F iny place on the shoe-assembly, steps on the pedal-lever 11.for causing the clamp-head B to descend obliquely, that is to say, both downwardly and at the'same time forwardly, towards the shoe-assembly.

` I Vmay here briefly state that-the carriage C is adjustably mounted on the arm 15 of the clamphead B Yfor initially setting or adjusting themachinefor the'severalvarious vstyles and types of heels F, the carriage C being normally clamped in such 'predeterminedor adjusted position on the clamp-head B, the plunger 23, however, being un- Vclampedl or loosened in thecarriage C `for pur- Y Suclidescentv of the clamp-head Bbrings the presser-foot 31 oscillatably into yielding engagement with the end or lift of the heel `F, whereby the foot 31 is self-adjustingly tilted to the angle of the heel-end, the plunger 23 thereafter compressing the spring 34, Vfor impinging the plungertoothed-end' lockingly with the cooperating toothed-face of the -sotilted` foot 31.

As thel clamp-head B continues its downward movement, the carriage C is shifted likewise on the heel-pressing plunger 23, the carriage-supported pinion 35 having rolling meshing cooperation with the plunger-rack 36 for forwardly swinging the pinion-carried arm 37 for actuating the previously suitably set or positioned saddle 39 ina curvilinear path intersecting the path of movement of the plunger 23, until the saddlecarried felt portion 41 impinges the rear face of the heel F. Y

. On further movement ofthe clamp-head B the co-operably connected pressure-foot 31 and saddle 39 have'pressure-equalizingV engagement with the heel F on respective sides of `a preferred line Vof clamping-pressure action, as indicated at a in Fig. 1,'which'passes through the forward half of the heel-seat of the shoe approximately'right-angularly to the latter in preferably parallel relationwith the direction of movement of the clamp-.head B, for holding the heel in the-position previously determined by the the operative in assembling the heel on the shoe.

As the clamp-head B thus engages the shoeassembly` the last-support 44 shifts downwardly ingits chamber 43 for rocking the lever 60 until its bolt-carrying end 59:.is spaced from the top face of the bed-plate 3 for impinging the bolt--` suspended yoke-lugs 55v against the bottom face` of the plate 3, thellever 60 being thus disposed 6l, as best seen in Fig. 11.

Thereafter, the pedal-spring 10 yields to nal movement of' the pedalv levery 11 to latched position, as best seen in Fig..1.' The. operator, by suitably manipulating the shaft 101 clamps theplunger 9 in the housing 100 for locking the clamp-head B in shoe-assembly abutment position, andalso manipulates the clamp-bolt 25 for locking the plunger 23 in the carriage C, whereby the presser-foot 31v and saddle 39 become rigidly xed for restraining the heel against movement in the machine.

VThe operator 'then' steps on theI pedal 86 for actuatingithe clutch 85tfor effecting a single revolution of the cam-shaft 83,'the cam 51 correspondingly oscillating thelever 49 for' reciprothe slide 47, the pawls 68 each slidingly engagel the respectively adjacent fingerY '73 in widely spaced apart* position, but on upward shifting actuation of the slide 47 responsively to co-action of the roller 50 with the nail-driving portion b of the cam 51, the slide-carried pawls 68 override the end of the fingers 73 for swingable actuation of said pawls 68, under urging of the springs 69,l into mutually approaching gripping co-operatin with the toothed faces of the rack-bar 77.

The pawls 68 being now inY actuative engagement withV the rack-bar 77, further" upward movement of the slide-i7 causes the rack-bar carried plungerfSl toV drive the nail H succestively through the shoe innersole 94, fiber-piece 94', filler 96, and outersole 95 into the heel F, with Y'a nail-driving line of pressure action obliquely disposed to the' clamping-pressure line of action'of the abutment-opposed clamp-head B until the head of the nail H isr in contact with I the innersole 94a. I l

At this time may be particularly pointed out that, temporarily, and while in the machine, the last G provides al foundation for theshoeassembly which efliciently and effectively cooperates with the several parts of thev machine forvnail-setting purposes, particularly for"Y supporting the upper in form-retaining position for stretching the heel-seat into the cup of the heel and firmly seating the heel thereon. l w

In such respect, the length of the nail H is so selected relatively to the stroke of the slide 47 and the throw' of the cam 51, that, as the nail H is driven in the heel, the driving-resistance of the nail H, reacting through the lever 49, exerts on the lever-carrying yoke 53 a pull yieldingly resisted by the springs 57, the latter contracting their length responsively to downward swinging movement of the lever 49 about its slide-engaging end as a pivot forl depressingY the lyoke 53 upon the springs 5'?,l as best vseen in Fig. 13.`

Such spring-tensing pull or force is, through the bolts 56, the lever 60, applied with lifting effect on the last-support 44, for actuation thereof concordantly with the plunger 81, and with a line of pressure action disposed for equalizing the oblique nail-driving line of pressure action, for preventing shifting of the heel on the shoe during the nail-driving operation.

The last-support 44 becomes in turn resiliently supported for effecting a relatively sustained compressive distortion of the last, the heel, and the heel-seat material between the last-support 44 and the abutment clamp-head I3` by reason of which structural distortion of the shoe-assembly, the' nail H, being undistorted, is caused to penetrate correspondingly into the compressed fibers of the heel in such manner that, on release of the compressive strain in, and ensuing expansionof, the heel-material, the nail resides therein in a highly tensed state, the rim of the heel-cup 97 being forced or grooved into the lastsupported shoe-body E around the heel-seat thereof, and the head of the nail compressing the heel-seat material into the cup 9'7 of the heel until the nail-head is set flush-wise into the insole 94; I

As the cam 51 revolves, the roller 50 drops into the valley-cam-portion d for momentarily more or less partially relaxing the pressure onanism and the several parts are returned to no'rmal position. The operator loosens the-plungers 9 and 2k3, and steps on the pedal-release 14 for retracting the clamp-head B from the shoe-assembly E-F-G, whereupon the latter with its contained permanent fastening element H may be removed from the machine. f

Fig. 1 illustrates the application of a so-called Louis heel to the shoe-assembly, while Fig. 12 illustrates the application of a so-called Cuban heel thereto, from which it will be seen that the saddle 39 is merely slightly shiftedeon the arml .37 from its position in Fig. 1, for efficient and effective co-operation of the equalizing members of the machine with such low or Cuban-heeled shoes, substantially in the Ymanner 'and forV the purposes hereinbefore set forth. Hence a further description thereof is omitted. l

My invention is further particularlyI efficient in its intended purpose by reason of the fact that, in the so-permanently attached heel-andshoe-a'ssembly, the nail H being located in the center of the heel, and the last being in the shoe,

the cooperation of the nail, the last, and the shoe,

is highly effective for preventingrocking movement of the heel on the lshoe after removal of the shoe-assembly from the machine.

' It will be seen that my invention accomplishes its objects, and it will be understood that changes and modifications in thel form, construction, arrangement and combination of parts maybe made and substituted for those herein described and shown without departing from the nature and principle of my invention.' f

Having thus described my' invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. In apparatus Vfor attaching a heel to a shoe, the combination comprising means for setting a n'ail through the.V sole of the shoe into theheel, and means responsive to nail-setting operation for compressing the heel and the sole together.

2`. In apparatus for attaching a heel to a lasted shoe-upper, the combination with a last-support of last-guided means for setting a nail throughY engagement of the nail with the insole of the upper.

`4. In apparatus for setting a last-guided nail in the heel of a lasted shoe, in combination, a nail-driving member supported for longitudinally shiftable movement responsively to engagement of the nail with the insole of the upper, and

means engageable with said member in vshifted position for nail-driving actuation thereof 5. In apparatus for setting a last-guided nail in theheel of a lasted shoe, in combination, a nail-driving member supported for shiftable movement responsively to engagement of the nailwith the insole of the upper, and means including clamping members actuable for engaging said nail-driving member in shifted position for naildriving-actuation thereof.

6. In apparatus for setting a nail -in a shoe, in combination, nail-carrying means including rack shiftable responsively to engagement of the nail with the Work, and means including normally spaced pawls operable for actuative engagement with said rack in nail-shifted position for driving the nail in the Work.

7. In apparatus for attaching a heel to a lasted shoe, in combination, nail-setting means including a lever and a member actuable thereby for setting a nail through the sole of the shoe into the heel thereof, and means including a shiftable lastsupport having resilient connection with the lever for compressing the heel, the last, and the sole of the shoe together.

8. In apparatus for attaching a heel to a shoe, in combination, nail-setting means including a member actuable for setting a nail through the sole of the shoe into the heel thereof, and means including a shoe-support shiftable responsively to nail-driving resistance of the nail-setting memberv for compressing the heel and the sole of the shoe together during the nail-setting operation.

9. In apparatus for attaching a heel to a shoe, clamping means including a head having a freely tiltable member supported thereon for shiftable movement of said Vmember responsively to engagement thereof with the work, and meansv on the head engageable by said member when in work-shifted position for retaining the same in 'tilted co-,operation with the Work;

10. In apparatus for attaching a heel to a lasted shoe, clamping means including a support and a member carried thereby for engaging the cone of the last, a clamp-head shiftable on the support relatively to said last-engaging member rightangularly to the heel-seat of the shoe, and means for lockingy the head in shifted position on the support.

11. In apparatus for attaching a heel to a lasted shoe, in combination, clamping means operable alongl a line of clamping pressure intersecting the forward half of the heel-seat for retaining the heel on the shoe, nail-setting means operable along a line of nail-driving pressure obliquely disposed tothe clamping pressure line for driving a nail through the sole of the shoe into the heel thereof, and last-lifting means operable along a line of pressure-action disposed for equalizing said nail-driving line of pressure for preventing shifting of theheel during the nail driving operation.

12. Inapparatus for attaching a heel to a lasted shoe, in combination, nail-setting means including a member shiftable for driving a nail through the sole of the shoe into the heel thereof, clamping means including a last-supporting member shiftable for compressing the last, the heel and the sole of the shoe together during the nail-setting operation, and means including a power-operable member co-operably connecting the nail-settingmember and the last-supporting member for effecting concordant actuation thereof.

13. In apparatus for attaching a heel to a lasted shoe, in combination, a last-support including a last-lifting member, and nail-driving means cooperablewith the last-lifting member for setting a nail through the sole ofthe shoe into the heel thereof.

14. Apparatus for attaching a heel to a shoe comprising, in combination, means for setting a nail through the sole of the shoe into the heel, and mechanism operable by and with the nailsetting means for vcompressing the heel and the shoe together.

15. Apparatus for attaching a heel to a lasted shoe comprising, in combination, means including a member actuable for setting a nail through the 16. Apparatus for attaching a heel to a lasted shoe comprising, in combination, means for setting a nail through the sole of the shoe into the heel, and mechanism including a member shiftablyresponsive to actuation of the nail-setting means for compressing the heel and the lasted shoe together.

17. Apparatus for attaching a heel to a shoe comprising, in combination, means for setting a nail through the sole of the shoe into the heel, clamping means, and mechanism including a shiftable member co-operating with the clamping means and actuable responsively to operation of the nail-setting means for compressing the heel and the shoe together.

18. Apparatus for attaching a heel to a lasted shoe comprising, in combination, means for setting a nail through the sole of the shoe into the heel, clamping means including a resiliently supported member, and mechanism having connection with said member for yieldingly engaging the same responsively to operation of the nail-setting means for compressing the heel and the lasted shoe together.

19. Apparatus for attaching a heel to afshoe comprising in combination, a nail-setting plunger, clamping means, and lifting means resiliently connecting the clamping means with the plunger for setting a nail through the sole of the shoe into the heel. v

2O.v In an apparatus for attaching a heel to a shoe, in combination, nail-driving means, clamping means, and means including a yieldable support co-operable both with the clamping means and the nail-driving means for compressing the heel and the shoe-sole together responsively to actuation of the nail-driving means.

' 21. In an apparatus for attaching a heel to a shoe, in combination, `clamping means including a plunger for engaging the lift of the heel, a swingable .arm for engaging the back-face of the heel, and means co-operably connecting the plunger with the arm for swinging movement of the latter responsively to engagement of the plunger with the lift of the heel.

22. In a machine for operating upon the heelportions of shoes, a Work-support, movable fastening-inserting mechanism and movable Workpressing mechanism co-operating with the support, operating means for moving one of the mechanisms, and means for moving theY other mechanismby a force dependent upon the resistance encountered by vthe mechanism first moved.

' 23. In a machine for operating upon the heelportions of shoes, aWork-support, movable fasactive force of `the operated mechanism to the yassociated mechanism to effect its movement.

24. In a heel-attaching machine, a support, a

driver movable through the support, a heel-abutment co-operating with the support, and means made effectiveV by the movement of the driver for forcing the support and abutment into heelclamping relation.-

' WALTER A. THUM.

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