US3101480A

US3101480A - Heel attaching machines

Info

Publication number: US3101480A
Application number: US142170A
Authority: US
Inventors: Jr Chester E Rogers
Original assignee: United Shoe Machinery Corp
Current assignee: United Shoe Machinery Corp
Priority date: 1961-10-02
Filing date: 1961-10-02
Publication date: 1963-08-27
Anticipated expiration: 1980-08-27
Also published as: GB1016907A; DE1510025A1

Description

Aug.-27, 1963 c. E. RoGERs, JR

HEEL ATTACHING MACHINES 5 Sheets-Sheet `1 Filed OG.. 2, 1961 [n1/0n for Oh eserEHogerJ Jr BH hisAtzor'ney @om 77 961%/ a 1. -d+ ---l uw 701% x j Hwh.. lp.. M 1 N m M M w QW/M 6 6 @M M m ,1 1 m M M Aug. 27, 1963 C. E. ROGERS, JR 3,101,480

HEEL ATTACHING MACHINES Filed Oct. 2, 1961 5 Sheets-Sheet 2 ug 27, 1963 c. E. ROGERS, JR

HEEL ATTACHING MACHINES 5 Sheets-Sheet 3 Filed 0013. 2. 1961 Aug. 27, 1963 C. E. ROGERS, JR

HEEL ATTACHING MACHINES 5 Sheets-Sheei 4 Filed 001". 2, 1961 lvlllllllllllllllllllni Aug- 27, 1963 c. E. ROGERS, JR 3,1015480 HEEL ATTACHING MACHINES Filed OG. 2, 1961 5 Sheets-Sheet 5 Figi@ me 4J@ M6 le? lll H0 3,101,480 HEEL ATTACK-ruso MACHINES Chester E. Rogers, lir., Beverly, Mass., assignor to United Shoe Machinery Corporation, Boston, Mass., a corporation of New Jersey Filed st. 2, 1961, Ser. No. 142,170 19 Claims. (Cl. 1-335) y This invention relates to work supports for use in heel attaching machines -and more specifically t-o an improved jack of the type disclosed in United States Letters Patent "No, 2,428,047, granted September 30, 1947, on an application tiled in the name of John F. Standish,

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wall of the passage which is formed in the above-mentioned last and is positioned rearward of the thirnble hole and is'inclined downwardly and forwardly at' about 8 `to the lplanel of the rim of the heel plate of thev last.

As above explained, in vfthe other type of last above"y mentioned the ,pass-age which is formed in .the back cone of the last and is a continuation of the thimblehole of said last'h'as a diameter somewhat greater than thatv of the above mentioned inclined passage.

`In order to accommodate lasts of the two types above mentioned without requiring .that the spindle .and a mountj ing therefor shallbe changed -in changing over from one In the manufacture -of shoes it is customary to attach i a heel to a shoe by the use `of-ar single dri-ve screw or nail, which is `driven into .the heel seat of the shoe and the heel through a passage extending :generally heightwise of the back cone of a last bearingthe shoe, 'as disclosed for example in Patent No. 2,428,047'. The drive screw serves to hold the heel on the shoe while various iini-shing operations are being performed and until the last -upon which -spindle occupying a bore or passage which is positioned just rearwardly of the usual last pin receiving )thimble ofthe last and extends heightwise through the back cone of the last downwardly and forwardly at an tangle of about 8 to the general plane of the rim of the heel plate of the lastwhich rim is parallel to the crown of said back cone. The lfor-ming of the above mentioned bore in the last, which bore constitutes a passage for'recreiving the spindle, weakens therlast las well as increases its cost. Ac-

cordin-gly rit has also become common practice to extend the -hole of the usual last ipinfreceiving thimble of the last so that it progresses heightwise through the back cone of said last and thus yaccommodates a spindle in which reciprocat-es the `driver for the temporary attaching screw.

The `thimble hole of the last Vand the above-mentioned passage which is yan'ext-ension of this hole are `disposed at `substantially right `angles to the general plane of the ,rim

f :a-jackof'the illustrativemachine in a work receiving or p type Vof last to another, the illustrative machine in accordance with'another feature of they invention is provided with afsleeve which 'has la cylindrical periphery and is adapted to be mounted slidingly'on the hollow spindle for reception in ,a cylindrical passage which extends through the back'cone of the last-*tand has ka diameter somewhat greater than the diameter of the spindle, coacting means on the spindle and the sleeve for locating the sleeve in `its operating position lengthwise *of the spindle with `an lend of the sleeve in register with" the end of -the spindle 'and means Ifor securing the vsleeve in its operating position to the spindle.

`The present invention'consists in the foregoing features and in novel tfeatures'hereinafter. described in connection with the accompanying drawings which illustrate one embodiment of the sa-me selected for purposes of illustration, said invention'being fully disclosed in the following descriptionand claims. lnthe drawings, Y f FIG. l is a central vertical` longitudinal section through loading position, a last, which bears a shoe and has a spindle receiving passage continuous with a thimble hole of the last, being shown upon-a mount of the jaclcand as depressing saidmount luntil 'a heelplate of the last engages l thenpper end of a jack spindle which at this' time is fixed against depressioni;- Y I FIG; 2 is a view similar to FIG. 1 but showing the jack i-n an operating or heel attaching position' and as havingr'nounted on it a last provided with 'la separate i spindle zreceiving passagewhich` arranged rearward off modify the incl-ined separate spindle receiving passage :as well .as .v

accommodate a last having a spindle receiving passage which is a continuation with Ithe, thimble hole of the last.

the thimble hole ofthe laan*v g FIG.v 3 isa front view off ia' portion of the jack partly in section on the line III-#III of FIG. 1; Y

FIG.` 4 isa `secfo'nfon the 'line 'IV-IV, of FIG.- l; f

FIG. 5 is a 4perspective view tot control' means for al valve governing theoperationof vrthe mount; 't

APIG. 6 is fa perspective view f means travel ofv the jack; v f

FIG. 7lshowstn-perspective means rfor controlling movement of the spindle ofthe jack; 4

with which a 'last bearing a shoe is moved and comprising l two last supporting members which' are moved by the last and one of which has the general Lform of a hollow spindle for example provided with a passage, a 1driver movable in the passage of said one member, means for retaining one of the members against movement relative lto the other during movement of the other, means for freeing the retained member for movement and for restrainingduring side diameter of the proper size to receiver'slidinglyfthe A` FIG. 8 is an enlarged section of a portion ofthe spindle and 'asleeve Imounted on the spindle;

`FIGaQ is a perspective view of :a

y bied piece of the mount of the illustrative machine;

FIG. `1() is -a rfront view-of a rnodiiied holddown clamp for accommodating high style heels which are to be at-v tacihed to shoes; and FIG. 11 is :a side elevation ot a portion of the holddown clampshownin FIG. 10.

The illustrative machine is described with Vreference c has been pulled Iby the use tof nails (not shown) aiu-mss for limiting 26, 26a provided respectively with spindle receiving passages 28 (FIG. 1) 28a (FIG. 2), the passage '28a being arranged rearward of the usual thi-trible 1li-ole 3G of the -las't and having an axis thereof disposed at an angle of approximately 8 to ra line(not shown) nonmal to the 2" general plane of. the rim ci a heel plate 3,1 (FIG. A2) of the last 26(1,vand the passage 2S being continuous with al ole 32 (FIG. 1) of the thirnble 36l and having its axis arranged at right angles to the plane of the rim of ia heel plate 33 of the last 26 and `coincident Iwith the axisotf the tbimble hole. i

The illustrative machine is substantially identical with the machine .disclosed in Platent No. 2,428,047 'and comprises a plunger 34 reciprolcable under power in ya mai-n trame 36 of the machine to raise a driver 33t, which :forms part of a jack 40 and llas `a magnet-ized upper end, whereby tofinsert the drive screw or nail 24 through 'the heel seat of the shoe 22 and into the heel 2G which is forced under power by la hclddown device or clamp 42 against che heel seat of the shoe. It will he noted that the heel plate 31 of the last26a has a shoulder 31a (FIG. 2)l which overlies the end :of the passage 28a in the last 26a and that the plate 33 of the last 26 has a shoulder 33a (FiG. 1) overlying the end of the passage 28 yin the last 216, said shoulders 31a, 33a being hereinariter described as shoulders liorrrred in and extending transversely of said passages 23a, 28. n

Attached to the top of a column of the main frame 36 is a frame cap 44 provided with ways 46 inclined downwardly and `rearwardly land slidable along said lways is a carrier or base 48. of the jack 4i). The work receiving position (FIG. 1) `ot the carrier '48 of the jack 40l is determined by the contact of a stud t) (FIGS. 3 and 6) secured to the carrier with a stop plate 52 screwed to the frame cap 44, rearward movementof the carrier being lirnited by: its engagement with va cross bar rt adjustably secured to the main vtrarne 36.'

An upstanding housing portion 56 of the carrier or spindle by a screw 34 and has transverse anges 86 (FIGS. 4 and 7) provided with |angularly disposed planar lower faces 86a, 86h. Upward movement of the spindle 78 in thev block 6@ is limited by the engagement of the upper 3 tace ci the foot 82 with a lower lface of the block. Ad-

justment of the `foot 82mm the spindle 7d permits theupper extremity of the spindle to belocated at the proper height to `support the yshoe ion the last in a definite relation to the driver 33.

The passage 23 forming the extension or me thimble hoie A32 of the last 26 commonly has `a slightly geater f diameter than that of the passage 28a of the lastr26a. In operating upon a shoe mounted upon the'last 26, the diameterpof the passage 28 of which is greater than that of the conventional passage 28a, a sleeve Si (FIGS. l, 4l

and 8) is mounted on the upper cylindrical portion 78a of the spindle 78 and has a hanged `lower end 83. When theA flanged lower end .83 of the sleeve 81 engages the upperfendof the bevel portion 78C of the spindle 78 the upper end of the sleeve is flush with the upper end of the spindle, the outside diameter of the sleeve being such that it ts -slidingly in the passage 28 of the last 26 and also in the hole 32 of the thimble 30 of the last.

In vorder to insure that the sleeve 8l shall be held in head of the drive screw 24 to the proper depth into the insole of the shoe 26. Downward displacement of the vdrivertl in a passage S8 of the spindle is limited by a -key- 90 (FIG. 2) extending through a slot 92 in lthe wall Y of the spindle and lying ina keyway dextending longitubase 48 has projecting rearwardly from it a pair of spaced 1 il'anges 5S forming `abutments for a guide block 6W (FIGS.

` 1, 2 and 4) which is jonrnaled `on a pair of bearing pins 6-2 pinned toa bracket 64 secured by bolts 65 to the carrier 48 and which has extending longitudinally and heightwise through it yafcylindrical bore or guideway 66. F[the guide block 60 thas Ia pair of recesses 68 (FIG. 4), 68a (FIG. 1) adapted ittingly to receive lan y.end of aplunger l7'0' which is ,slidingly mounted in a 1guideway '72 (FIG. 4) 4of one of the flanges 58 'of the carrie-r 4S and is constantly urged tothe right (FIG. 4) by a spring 74. The lan Ilar setting of the guide block 60 upon the carrier48 about the common of the bearing pins 62 may be quickly ieiected by the engagement .of the plunger 70 with one lor the other of the recesses 68, 68a. A hand knob 7 6-is secured to the plunger 7 0 `for use in manually retracting it from the recess 68 or 68a. When the plunger 7i) engages in the recess 6% the axis of the cylindrical guideway 66 of the block Gills arranged vertically and when the plunger engages in the recess 68a the `axis of the guideway is inclined at an angle of about 8 to the vertical.

Slidable in the guideway v66oi the block 60 is a hollow spindle 78 in which the driver 38I is mounted for 'reci-prokcation. The spindle '78 comprises upper and lower cylin-l dinally along the lower portion of the driver. The key 9? lies in a recess 96 which is formed in t-he guide block 'and has formed in it a vertical slot 191 through which passscrews 93 which `are threadedrinto the guide block and have heads normally forcing the key lagainst the bottom of the recess96 to secure said key in Van initially adjusted position tothe guide block 6i). The screws 93 may be initially loosened preparatory to securing the key 90 in a desired heightwise 'position upon the guide block 60. Initial `adjustment of the key 9G is eiected to vary the starting position of the driver 38 forv the accommodation of drive screws or nails of diierent lengths.

When the jack 4th is in its |forward or work receiving or v loading position the spindle 78 is fixed `against depression by contact of one or the other of the lower' planar faces 86a, 86h of the anges $6 of the foot plate 82 with tracks 9S. which `are -inclined downwardly yand rearwardly at the same angle as `are the `ways 46 and are adjustably secured to the frame cap 44 by screws 10d. After a predetermined amount of rearward movement of the carrier 48y toward its operating or 'heel yattaching position, the foot 82 yof the spindle 78'rnoves above lower portions 192 yoi the tracks 98, thus allowing slight depression yof the spindle, the last 26 or 26a `at this timereceiving the support of another" member as will be hereinafter described.

Formed in the'upstanding housing portion 56 of the carrier or jack base 4S is a vertical cylinder 164 in which operates a tubular piston 166 having at its upper end an enlargement provided with a spherical depression 198 shaped to receive a complemental lower surface of a bed piece or mount lli) having a planar upper taceradapted to support the last by contact with the crown or upper surface of the back cone of the last. The bed piece 11d, the cylinder 104 Vand-the piston'lt6 may l e consideredpart of the carrier 48 oi the jack 40. Depression of the .holddown 'clamp k42 initially causesthe bed piece il@ to tilt to the proper `angular position and then after clamping acted upon by the springs 114 is limited by contactof nuts threaded onto 'the 4rods 116 with the under side ofthe carrier 48. Y

In order -to insure that the portion of the crown of the back icone of the last 26 or 26a overlying the slotf112 of the bed piece shall be effectively supported there is provided a slide plate 111 (FIGS. l, 2 -and 9) which is movable along a' `forwardly 'and Irearwardly undercut guideway 113 in the planar upper face of the `bed piece and which has formed in it a hole 115 throughfwhich the spindle 73 passes freely. In accommodating the last 26a l the bed piece 110 may bel initially oriented slightly on the tubular piston 106, the upper face of the bed piecefduring such orientation being inclined slightly downwardly and rearwardly from the horizontal. v p l It has been found that when the shoe to which the heel has been attached is removed from the machine disclosed in Patent No. 2,428,047 there is a tendency on the part of the operator to tilt the toe end of the shoe audaccordinglythe front end of the bed piece 110* downwardly with the result that when the work has beenA removed from the machine the bed piece is normally dipped forwardly and sometimes sidewardly. When this occurs more time is required in presenting the next shoe to be operated upon to the machine than where the upper face of the bed piece X110# is horizontal. Accordingly the bed piece 110y is provided at its forward lateral portions with anges L17 which are normally in engagement with the iianged upper face of the tubular piston 106, the upper face of the bed piece at this time being horizontal. It will thus be apparent that the presence of the anges -117 will allow the bed piece 110 to tilt slightly backward from its horizontal position to accommodate slight variations in the angles of the last passages `20a and/or irregularities in the crowns of the back cones of worn lasts. The presence of the flanges 117 insures against the operator tipping the forward end of the bed piece downward as above described when the work is removed from the jack 40.

`It has been found that kthe thimble hole 3,2 and the passage 28` are consistently accurate, the common axis of the hole and the passage at alltimes being disposed at right angles to the planar crown of the back cone of the last.

ya valve y122 is movable. An expansion spring 124 tends to close the valve y1,22 and thus the passage through the piston 106. When this occurs the piston is locked against depression by oil in thefcylinder 104.

, When the jack 4 0 is in its work receiving position shown in BIG. 1 the valve .122 is held open by a multipart bell crank lever `'1"26 (FIGS. 3 and 5) fulcr'umed on the enlargement of the piston 106, a bifurcated arm of this lever extending between an enlargement and a flange on a stem of the'lvalve 122. The bell crank lever L26 has a depending arm which during' travel of the carrier 48 of the jack 40 along itsf'ways 46 moves along the periphery of a cam l128 rotatably mounted on a bracket 130 secured ,to the frame cap 44. When thejack 40` is in its'work receiving or loading position the depending arm of the bell crank lever 126 engages the high portion vof the cam 128 causing the valve 122 to be lowered from its seat. 'y

Accordingly in operating upon shoes mounted upon lasts j v 26 it is not necessary to provide' an initially tiltable bed piece and accordingly said bed piece may be rigidly secured in its horizontal position to the tubular piston i106 or may be formed integral with said piston. "In the illus- The nuts on the lower ends of the rods -11'6` are so positi`oned that they permit the springs 4114 so yto elevate the piston i106 and the bed piece 110 that when the

heel plate

33, 31 of the last 26, 26a respectivelyv having the lowest cone, contacts the end of the spindle 78, the engagement of `the crown of the last with the bed piece y110 lowers the unlocked' piston slightly. When the jack 40 is shifted rearwardly to lits heel attaching position the depending arm of the bell crank lever 126 rides of the cam roll '12S and lies out of Contact with an opposed portion 130 (IFIG. 5) which supports the roll and accordingly the Valve 122 is closed by the spring 124 and the piston 106 and the bed piece '1.10 are locked againsfmovement in preparation for theL heel attaching operation. l

The holddown clamp 42 is similar torthat disclosed in United States Letters Patent No. 1,545,575, granted July r14, 1925, on an application tiled inthe name of lohn F. Standish and comprises a tread abutment v132 and a back fork 1.34 operatively connected for equal and opposite movements and mounted on a carrier slide .136, 'which is initiallyadj-ustable along ways 13S l(FIG. 2) extending forwardly and rearwardly of an operating head 139 of the machine, by the use of a screw 140.. Modiedholddown ,clamps such as illustrated in UnitedStates Letters Patent ment 132 and the back for'kl y,134 of the holddown clamp j l 42 are initially adjusted with relation to the carrier slide 13610 accommodatel the particular style of heel on hand i' land the holddown clamp as an entirety is moved forward trative construction it will be noted that when the spindle t v78 is in its vertical position shown in FIG. l for accommodating thimble hole work, the vertical axis of the the lmachine is adjusted for thimble hole workthe slide plate 111 rests upon the upper surface of the block, the iianges i117 of the bed'piece 1:10 at this time resting on the upper face of the tubular piston 106. Accordingly when operating upon thimble hole work the bed piece 110 is fixed against tilting on the tubularpiston 106.

The lower end of the piston 106 has secured to it a valve seat -120 in an axial extension of which a stem of or rearward to its'proper position by the use of the screw 1140 so that the tread abutment 132 and the back fork 134 will effectively engage the tread end and the 'rear face 'of the heel when said .clampy is `depressed vertically in response to operator controlled movement of atreadle .(not

shown); t' s When attaching heels 201m shoes 2K2 which are mounted on lasts'26, 26a the guide block 60 is in its upright and inclined positions respectively as shown in FIGS, '1 and 2Y upon the carrier or base 43 of the jack 40. .Initially the carrier 48 is forward in the ways 46, the stud 50 (FIG. 6) being invengagement with the -stop` plate `52 and the transverse flanges 86 of the foot 82 ofthe tubular spindle 78 resting on the tracks 98 and accordingly the spindle being locked against depression. Y

The operator drops a drive screwfor nail 214, head down, into the passagefvSS 'of the spindle 78, placesover the spindle or yover the sleeve 3'1 on the spindle, the passage 28av or 28 of the last 26a or 26 bearing the shoe 22 and places the heel 20 on the heel seatof the shoe. Since the depending arm lof the bell crank ilever 126 is in engage- V7 i mentwith the cam 128 the valve 12,2 is open, the piston 106 and the bed piece 11th` being raised to their maximum extent by the springs 111i. The last 26 lor 26a onthe bed piece 11G is depressed by the operator against the action of the springs 114 until stopped by Contact of the shoulder 33a or 31a of the last plates 33 :or 31 with the end of the locked spindle 73 and the sleeve 31 or with the end i with which a last bearing a shoe is moved and comprisofthe locked spindle 73. When this occurs the distance of the insole of the shoe from the end of the driver 33. which has a constant throw, has thus been determined and the height of the back cone of thelast has been measured.

The operator now slides the jack 4b rearward until the carrier or base 4S of the jack engages the cross bar 54 thus locating the work in 'the proper operating position. Before the transverse flanges 86 of the spindle foot S2 leave the tracks 9d' the depending arm of the bell crank lever 126 passes ofi the cam 12S and accordingly the valve 122 is closed by the spring 124 thereby trapping oil beneath the piston 106 and locking said piston against depression. The passing of the ilange 86 of the spindle foot 82 from the tracks 98 to positions over lowered portions 102 of these tracks frees the spindle 7S, and the bed piece 110l now provides a rigid support for the work eX- cept for any initial angular accommodation as allowed by the universal locking movement :of the lbed piece 1l@ in the depression 10S. v

The power operation of the machine is now started by depression of the treadle (not shown), the holddown clamp 42 vdescending to clamp the work against the bed piece 1105 and the driver 33 thereafter rising under the inuence of the plunger 34 to insert the drive screw 24 through the heel seat and into the heel. At this vtime the spindle 78 is held up only by the spring Sti' and is therefore not subject to clamping pressure. During the completion of the operating cycle the drive 38 descends to a starting position by gravity as the plunger 34 is moved to its lowered retracted position, the holddown clamp 42 is raisedto free the work` and the operator draws forward the jack 40 and removes the shoe and its attached heel from the machine.

In the attachment of high style Louis heels Zita (HG. l0) to shoes it is customary to replace the holddown clamp 42 by a clamp 142. The clamp 142 includes a presser member 1144 which is U-shaped in horizontal cross section and comprises a pad 146 which is made of leather or similar material and is wrapped about and secured to the lower U- shaped edge of the presser member and isl adapted to engage the rear land side faces of the heel 2in1 to force it against the heel seat 'of the shoe 22..

The presser member 144 is secured interchangeably by the use of screws 157 to a holder plate 148 which has an upper dovetail portion adapted to fit slidingly in a dovetail gu-idewaylStl formed in a carrier block 152 provided with an upstanding arcuate portion initially adjustablein an arcuate guideway 153 formed in a header 154 secured to a carrier slide 156 corresponding to the carrier slide 136.`

The carrier slide 156 may be initially adjustedgforwardly and rearwardly in a vertically movable operating head 159 by the use of a screw 158 which is rotatably mounted in said operating head and is threaded into the header 154. Angular adjustment of the presser member 1144 with relation to the header 154 is effected by rotating a worm .160 which is rotatably mounted in the header |154 and meshes with a rack 164 at theV upper end of fthe carrier block 152.

When the clamp 142 is lowered overthe heel 20a manually positioned upon the heel seat of the shoe 2v2 it is pressed against the side and rear faces of the heel to force the heel against the heel seat of the shoe. As the presser member 144 is ylowered it shifts laterally or lengthwise of the dovetail guideway 150 of the carrier block 152 to accommodate the left and right work.

Having thus described my invention, what I claim as ing two last supporting members which are moved by the last and one of which has a passage, a driver movable in the passage of said one member, means for retaining one of the members against movement relative to the other during movement of the other, means for freeing the retained member for movement and ior retaining during this time the other member'against movement, and means for securing the last Isupporting member which has a passage in either of two diferent angular operating positions with relation to the other supporting member.

2.. In a heel attaching machine, a frame having ways, a jack base slidable in said ways between work receiving and operating positions, a last bed piece movable on said base, a guide block pivotally mounted on the base, means for securing said block in either of two different angularly arranged positions Ion the base, a last spindle movable in the guide block, and means adapted to control movements of the spindle and the bed piece with relation to the base in accordance with the position of the jack base in the ways.

3.' In a heel attaching machine, a jack comprising a base movable between last receiving and operating positions, a guide block, means 'for securing the lguide block initially in either of two diiierent angularly arranged operating positions on said base, la last `supporting spindle Vmovable in said block, means dor locking the spindle means for locking the mount to the base in response to movement of the base to its operating position, and means for releasing the spindle from its locking means upon movement `or" the base toward its operating Iposition.

4. In a heel vattaching machine, a jack comprising a portion adapted to 'be engaged by the crown yof `the back cone `oi a last, a guide lbloclr` which is mounted for pivotal adjustment on said jack and has a bore, means for securing said guide block in any one of a plurality of predetermined angularly adjusted positions on the jack, a hollow spindle which is mounted for movement in said bore and is adapted to be engaged by a shoulder in 1a passage extending heightwise through the back cone of the last, means for clamping a heel against ia heel lseat of a shoe on the last mounted upon the jack; a driver slidable in said hollow spindle, land means for causing said driver to drive 'a screw through the'heel seat portion of the shoe and into the heel.

5. In a heel attaching machine, a mount having a face adapted to #be engaged by the crown of Ia back cone of a last bearing fa shoe, a spindle projecting from said face of the mount and adapted to be received in -a passage extending through the back cone of the last, means for securing 'the spindle in either vof two different operating positions in which an axis thereof is `disposed at different angles to said -face whereby to accommodate last passages which extend at different angles to the crowns of the lasts, and a driver movable in -the spindle for driving a ifastener through lehe heel seat of the shoe and into the heel.

6. In a heel attaching machine, la jack comprising a base movable between work receiving and operating positions, a mountwhich is movable in said base and is adapted to be engaged by the crown of the back cone of a last, means responsive to movement of the base to and from its work receiving position respectively fior yieldingly supporting the mount on said base and for securing the mount against movement to the base; a block having a bore, means for securing the bore initially to the base in either of two angularlyl `disposed positions, a hollow spindle which is mounted in the ibore of the block and is adapted to be received in la passage extending heightwise through the back cone of the last and which is engaged by a last shoulder extending into said bore, means responsive lto movement of the ibase to and linom its work receiving position respectively for securing the `spindle to the block and -for yielding supporting the spindle tfor movement in said block, means for retaining a 'heel aga-inst the heel seat of a shoe mounted on the 'last and the last against the mount and the spindle, and a driver slidable in the spindle and adapted to drive a screw through the heel seat of the shoe and into the heel.

7. In a heel attaching machine, a jack comprising a base and two supporting members adapted to be engaged respectively by the crown or the back cone of a last and a shoulder in a bore extending heightwise through said back cone, said base Iand accordingly said supporting members being movable together lgenerally lengthwise of the last between loading and operating positions, said supporting members being movable independently of each other lon said base and generally heightwise of the last, means for restraining, when said base is in its loading position, the shoulder engaging member against movement on said base and for allowing rnovement of said crown engaging member on said base, means responsive to movement of the base from its loading position to its operating position for `freeing the shoulder engaging member for movement relatively to the base and for restraining the crown engaging member against movement on the base and means for securing said shoulder engaging member in any one of a plurality of operating positions.

8. In a heel attaching machine, a jack comprising a base movable between a :last receiving position and a heel attaching position, a mount which is slida-bile on said Ibase and is adapted to be engaged by the crown of a back cone of a last, means for :causing the mount ,to slide yieldingly on said base in response to pressure of the :last when said base is in its last receiving position, a guide block having a bore, means =for securing the 'block in either of two different operating positions to the base, la hollow spindle which lits in the Ibore of the guide block 'and is adapted to be engaged by -a shoulder in a passage extending iheightwise through the back cone of the last means for looking the spindle for movement in the bore of the block when the #base of the jack is in its last receiving position, means ffor releasing the spindle from the block for yielding movement in the rbore under the action of the shoulder of the last in response to movement of said base to its heel attaching position, and means for locking the mount tothe base in response to movement of the base to its Iheel 'attaching position.

` 9. In a Iheel attaching machine, a jack comprising a mount which has a substantially plan-ar rface adapted to be engaged by the crown of the back cone of a last, said mount having a slot terminating at said tace, 'Ia hollow spindle extending through said slot in the mount and '\beyond said ace of the mount and adapted slidingly to receive a passage which extends heightwise through the back cone of the last and which has extending into it a shoulder adapted to be engaged by 1an end of the spindle,

' and means for securing the spindle in ldilerent operating positions with relation to said lface of the mount to laccornmodate lasts having passages axes lof which are disposed at different angles to the crown of the last.

10. In a heel attaching machine, a jack comprising a movable mount and a movable spindle adapted to be engaged respectively by the back cone of a last and a transverse shoulder in a passage which extends heightwise through said cone and slidingly receives the spindle, means for effecting movement of the jack between last receiving and heel attaching positions, means for causing, when the jack is in its last receiving position, Ithe mount to be movable under pressure exerted ,against it and the spindle to be held stationary whereby to measure the -cone of the last heightwise, means for causing, when the jack is in its heel attaching position, the spindle -to be movable under y pressure of said -shoulder and the mount to be held stationary, and means for securing the spindle in angular relation to the mount in accordance with the position of the passage in the last.

1l. In a heel attaching machine, a jack comprising a mount having a planar =face adapted to be engaged by the crown of the back cone of a last, a hollow -spindle extending beyond said face of the mount and adapted slidingly to be received in a passage which extends heightwise through the back cone of the last and into which extends a last shoulder, until an end of the spindle engages said shoulder, means or securing the spindle in different angular operating positions upon the mount whereby to accommodate lasts having passages which are disposed at dilerent angles to the crown of the last, a sleeve which is adapted to be mounted on and removed lfrom said spindle, means for positioning the sleeve on the spindle with an end of the sleeve substantially in register with an end of the spindle, and means -fo-r securing the sleeve positioned on the spindle to said spindle.

12. In a heel attaching machine, a jack comprising a cylindrical spindle adapted Islidingly to be received in a passage, which extends heightwise through a 'back cone of a last and into which a shoulder of the last extends, until an end of the spindle engages said shoulder, means for securing the spindle in any one of a plurality of operating'positions, a sleeve adapted to tit slidingly on said spindle, and means for securing the sleeve in a predetermined relation -to the spindle with an end thereof substantially in register with lan end of the spindle.

13. In a heel attaching machine, a jack comprising a spindle which has -a cylindrical periphery and is adapted slidingly to receive a cylindrical passage of one diameter and extending heightwise through a back cone of the last bearing a shoe, until an end of the spindle is engaged by a last shoulder extending into said passage, means for securing the spindle in any one of a plurality of operating positions, and a sleeve which has a cylindrical periphery and is adapted interchangeably to be mounted slidingly on the spindle for reception in a cylindrical passage which extends through the back cone of said last and has a diameter greater than said one diameter, coacta ing means on the spindle and the sleeve for locating the sleeve in its operating position lengthwise of the spindle with an end of the sleeve in register with said end of the spindle, and means for securing the sleeve in its operating position to the spindle.

14. In a heel attaching machine, a jack comprising a movable mount and a movable spindle adapted to be engaged -respectively by the back cone of a last and a transverse shoulder in a passage which extends heightwise through said cone and slidingly receives the spindle, means [for effecting movementof the jack between last receiving and heel attaching positions, means for causing, when the jack is in its last receiving position, the mount to be movable under pressure exerted against it and the spindle to be held stationary whereby to measure the cone of the last heightwise, means for causing when the jack is in its heel attaching position the spindle to be movable under pressure of said shoulder and the mount to be held stationary, means for securing the spindle in any one of a plurality of operating positions, a sleeve adapted to be received slidingly on the spindle to increase the diameter of said spindle, said sleeve and spindle having intereugaging portions for positioning -the -sleeve on the spindle, and means yfor locking the positioned sleeve on said spindle.

15. In a heel attaching machine, a jack comprising a base movable between last receiving and operating positions, a guide block, means for securing the guide block initially in anyone of a number of different angularly arranged operating positions on said base, a spindle movable in the block, means for locking ,the spindle against movement in the block when the base is in its last receiving position, a mount adapted to support a last `and movable generally heightwise of the last upon the base when ing the mount to the base in response to movement of the anon-iso base to its operating position, means for releasing the spindle from its locking means upon movement of the base to its operating position, and a plate which is slidingly supported by said mount and is adapted to be engaged by the back cone of the last and which has a hole in which the spindle fits loosely, said plate being movable into different operative positions on the mount in response to initial adjustment of the guide block to its different angularly arranged positions on the base.

16. In a heel attaching machine, a jack comprising a base movable between last receiving and operating positions, la lguide block, means for securing the guide block initially in any one of a number of different angularly arranged operating positions on the base, a spindle mov- -able in the block, means for locking the spindle against movement in the 'block when the 'base is in its last receiving position, a mount which comprises a bed piece arranged for lorientation on the mount and is adapted to support a last and which is movable heightwise of the last when the base is in its last receiving'position, means for looking the mount to the base in response to movement of the base to its operating position, means for releasing the spindle from its locking means upon movement of the base toward its operating position, and Ia plate which is slidingly supported upon the bed piece and is adapted to be engaged by the back cone of the last and which has a hole in which the spind-le fits loosely, s-aid plate being movable into different operating positions on the bed piece in response to initial adjustment of the block to its different angularly arranged positions on the base.

v'17. In a heel attaching machine, a jack comprising a lbase movable between last receiving and operating positions, a `guide block, means for securing the yguide block initially in any one of a number of different angularly arranged operating positions on the base, a spindle movable in the block, means for locking the spindle against movement in the block when the base is in its last receiving position, a mount which comprises a bed piece arranged for orientation on the rnount and is adapted to support a last and which is movable heightwise of the last ywhen the base `is .in its last receiving position, means for locking the mount to the base in response to movement of the base to its operating position, means for releasing the spindle from its locking means upon movement of the base toward its operating position, a plate which is slidingly supported upon the bed piece and is adapted to be engaged by the back cone of the last 4and which has a hole in which the spindle fits loosely, said plate being movable into different operating positions on the bed piece in response to initial yadjustment of the block to its different angularly arranged positions on the base, and means for locking the bed piece in a predetermined position against movement on the mount when the block is arranged in one of its angularly arranged operating positions.

18. in a heel attaching machine, a jackI for supporting a last bearing a shoe and comprising two last supporting members which are moved bythe last and one of which has Ia pmsage, a driver movable in the passage of said one member, means for restraining one of the members against movement during movement of the other, means for freeing the retained member for movement and for retaining during this time the other member against movemen-t, means for securing the last supporting member which has a passage 4in any one of a plurality of operating posit-ions, a powered head ymovable heightwise of the last supported by the jaclt, a clamp lwhich is carried by the head, said clamp having ya presser member `adapted to engage opposite sides of a heel positioned upon a heel seat of the shoe on the jack and "which is mounted for free shifting movement transversely of the shoe whereby to allow the presser member to shift laterally of the `shoe as it applies pressure against `the heel in 'order to accommodate itself to the heel irrespective of whether the heel is a right or a left.

19. ln a heel attaching machine, a jack `for supporting a last bearing a shoe and comprising two last supporting members 'which are moved by the last and one of which has a passage, a driver movable in the passage of said one member, means for restraining vone lof the members against movement during movement of the other, means for freeing the retained member for movement and for retaining during this time the other member against movement, means for securing the last supporting member which has a passage in any one of la plurality of operating positions, a powered head `movable heightwise of the last supported by `the jack, a clamp which is carried by the head, said clam-p having a presser lmember adapted to engage opposite sides of a heel lpositioned upon a heel seat of the shoe von the jack and which is mounted yfor free shifting ymovement. transversely of the shoe whereby to allow the presser member to shift lateral-ly of the shoe as it `applies pressure against the heel in order to accommodate itself to the heel irrespective of whether the heel is a right or ya left, and means mounting said clamp on said head for movement longitudinally `of said shoe.

References Cited in the le of this patent UNITED STATES PATENTS 2,332,024 Standish oct. 19, 1943 2,428,047 Standish sept. 30, 1947 2,822,643 Metzger Feb. 11, 195s

Claims

1. IN A HEEL ATTACHING MACHINE, A JACK INTO COOPERATION WITH WHICH A LAST BEARING A SHOE IS MOVED AND COMPRISING TWO LAST SUPPORTING MEMBERS WHICH ARE MOVED BY THE LAST AND ONE OF WHICH HAS A PASSAGE, A DRIVER MOVABLE IN THE PASSAGE OF SAID ONE MEMBER, MEANS FOR RETAINING ONE OF THE MEMBERS AGAINST MOVEMENT RELATIVE TO THE OTHER DURING MOVEMENT OF THE OTHER, MEANS FOR FREEING THE RETAINED MEMBER FOR MOVEMENT AND FOR RETAINING DURING THIS TIME THE OTHER MEMBER AGAINST MOVEMENT, AND MEANS FOR SECURING THE LAST SUPPORTING MEMBER WHICH HAS A PAS-