US1163600A - Shoe-lasting machine. - Google Patents

Description

J. CAV'ANAGH.

SHOE LASTING MACHINE.

APPLIcATIoII FILED MAR. 5. 19m.

Patented Dec.7,1915.

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I. CAVANAGH.

SHOE LASTING MACHINE.

APPLICATION FILED MAR. 5. |914.

Patented Dec. 7, 1915.

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IMM/55555 l. (JWWAGH.` SHQE LASTING MACHINE. APPLICATION FILED MAR. 5. |914.

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JAMES CAVANAGH', ory BOSTON, MASSACHUSETTS, AssieNon To UNI-TED SHOE MACHINERY COMPANY, OF-rATEmsON, NEWJERSEY, A CORPORATION or NEW JERSEY.

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To au whom t )may Once/rn Be it known-that LJAMES CAVANAGH, a

citizen of the United- States, residing at Boston, in the county of Suffolk and State of Massachusetts, have-invented certain Im provements in Shoe-Lasting Machines, of whichthe following description, in connection with the accompanying drawings, is a4 specificatiomlike reference characters on the drawings indicating like parts in the several figures.

This invention relates to machines for use in the manufacture of boots and shoes, and

in particular to machines for forming staple-` like fastenings of wire and for driving them through the Iupper and innersole to secure these parts together.

The invention is herein illustrated as eln-` sition and are driven by devices which are against an abutment.

The present` invention has for one objects to apply automatic mechanism which is caused to operate similarly to ,those4 mechcaused to operate by pressure of the shoe anisms disclosed in the above patents, vby

pressure of the shoe against an abutment,

for forming staples of fine wire and for. driving -themthrough like parts of the shoe.

These staples may either by employed as the temporary fastenings for holding the lasted.' upperto the-innersole, or .they may be eI'kI'f-- ployed as the 'permanent fastenings for usev in securing the upper of va. turn shoe to they rib of its sole.

With the above ob]ect in View, an im- .portant feature of the invention consists in the combination with mechanism for forming staples of fine wire or similar stock and for driving such staples, of means which is movable by pressure of the shoe thereagainst for causing said mechanism to operate, it being within the contemplation'of the invention to form and 'drive one, or any other del sirednumber of staples, at each cycle of the maohines operation.'

Another feature of importance is `comprised in a device for clenching the ends of .SHOE-plasma MACHINE.

-.::.-vv K .Specification of Letters Patent Application med March 5, 1914. serial No. 822,663.

the staples againstthe inner side of the rib,

and which is automatically moved into clenchlng positionwhenthe pressure 0f the shoe 1s applied to the nozzlethrough which the staples are driven, and is carried out of such position when such pressure is released' by the act of removing the shoe from engagement with the nozzle.

Other important features,such as the details of construction and combinations of parts comprised in the machine which is herein illustrated as the preferred embodi 'ment of the invention, will be more fully set forth in the following description and claims.

In the drawings: Figure 1 illustrates the machine in side elevation; Fig. 2 is an enlarged, perspective view, showing diagrammatically, some of lthe principal operating parts of the machine, and the fore part of a shoe in position to control the staple-formingand driving devices; Fig. 3 is a detail view showing the nozzle and staple clencher in the positions that they occupy relatively to the parts of the vshoe through which staples are driven,l just prior to the driving of a staple; Fig.- 4 is a detail, perspective view of the staple-forming devices; and Fig.v 5 ,is a front elevation of the machine.l

The` machine fram'e includes a suitable base from which extends a'standard A, supporting a head B. A driving shaft l is rotatably sustained in bearings carried by the head B and supports a loose pulley 3 which may receive power through abelt from any suitablesource. Theshaft 1 also'has fast thereon the cams 2 and 4 by means of which the wire feeding, and staple-formingmechanisms are operated,and said shaft also carries a disk 22 having a crank pin 22a which .is connected with a driver bar 24 through a y crosshead24a. The driver bar is guided lfor vertical movements in suitable guides carried by th machine frame, and carries a staple driver 26 which slides inv a groove formed partly in al staple-forming block 10, and partly in the nozzle 13 through which the staples are driven, as will be hereinafter more fully explained. The wire for 'forming the lstaples is supplied by a reel w which is supported from a rigid bracket extending raeentednee. 7,1915.

rearwardly from the frame ofthe machine,

the wire passing fromy ythe lreel forward through a guide 28 and'thence passing be#- tween-the adjacent groovd'peripheries of ,1110y a feed wheel 8 and an idler wheel .9, the

ter being ,journaled' intermediate the ends; of a lever 11 which is pivoted at one the frame and at its opposite end is'ctefd upon by the spring 32 which presses the idler 9 yieldingly against the feedwheel 8.

' The wire is fed forward bythe feed wheel through a curved guideway 18, and thencer between the cutter blades 14 and 16 and in position t be formedY into staples by the anvil 12 and the rear edge portion of the staple-formingA block 10, as shown in Figs.

2 and 4.

The stapleforming block 10 reciprocates in suitable'guideways carried by the frame,

andis constructed with separated wire-enformer of which is supported by the frame of the machine, while the latter is carried by the block 10. The block carries a rack 30 which is engagedzby a segmental rack 34 carried at onev end of a roclrfshaft 6, supported in bearings on the frame. The opposite end of this shaft carries a pinion 38, which is in mesh with a segmental rack 40 on one arm vof a bell-'crank 41 `which is fulcrumed tothe-frame and carries at the end of its other arm a'cam roll which runs in the cam groove `of the face cam 2, fast on the driveshaft '1. These parts are preferably so designedr that a' single reciprocation will be imparted tothe block 10 for each complete rotation of the cam 2. .The anvil 1 2. is provided* with' rack teeth engaging ea pinion 42-on a rock-shaft 44 'which is supported -in'jbearings carried by the frame.

"groovein cam 4'. 4Thelever 67 supports av The upper end' portion of the shaft 44 susend of itsjotherarm a cam roll that runsl tainsa lrigid-crank '46 whose outer end is slotted toreceive a slidable block 46% pivoted to .one arm of' a bell-crank 48, which is' fulcrumed. tothe frame and carrles at the in the groove of the cam 4, fast on the shaft 1.-

Thewire feed wheel 8 is fast 'to one end of a shaft 50,- mounted in bearings carried by i' the frame. 'A ratchet 52 isfast to the other Aend of the shaft 50, and a pawl-carrier 54,

' turning looselyv on the shaft, carries spring- "=ward. Thefpa'wl'carrier. is provided with "teeth thatv meshwith the teeth of a segmental rackijS formed at the end of a crank ing motion-' -fromg the `rock-shaftv 44. Thee parte described. fare so constructed, ar'- r"ranged andrelatedn" their'movements, that i such relation. yAn extension from the nozizle 1 3 carries-a bell-crank1174, which is yieldfea-ch timethe vshaft 44 is turned to advance l the anvil12 in position for forming a staple thefeedwheel 8 will be rotated the required,

distance-to feed forward a length of wire sufficlent for the staple. In the illustrated machine,` a full cycle of operation, which includes the feeding forward of al length of wire, .the formation of a staple therefrom, the driving of the staple into'the Work and the return of the several parts to position to repeat these several functions when the machine'comes torest, is caused to take place eaohytime the shoe is pressed against the nozzle 13. To this end, mechanism which may, and preferably will be, substantially like that shown in either of the Batters Patent above referred to, is provided for tripping a one-revolution clutch by pressure applied to the unozzle through the shoe, which clutches the loose pulley tothe shaft l and,

thereafter, upon a completion of the cycle, the pulley is automatically unclutche'd and' the machine is brought to a stop.'

As indicated by dotted lines in Fig. 1-, a tapering clutch member 62, which slides on the driving shaft but is constrained to rotate-therewith through a feather, or other like connection, isshaped tofit a recess in vthe loose pulley, and when these parts are in engagement the pulley is clutched to the shaft. The member 62 has connection' through an annular groove -with two diametrically arranged pins carried by a yoke 63 whichis supported by alever 64, fulcrumed at its lower end to the machine frame. A spring 66v extendsl from the lever 64toa/-bracket carried by the frame, and tends vto move the clutch member62 into engagement with the loose pulley. A lever,67, i

pivoted tothe frame, is provided at its upper end with a cam roll 68 that runs the I trip-lever 17 0, having at one Iend a shoulder l to. engage the lever 64 and hold the clutch f' ,out ofv engagement with the. loose pulley,

and' a spring 172 Fig. -5 extends from the lever j 170 to'a fixed part ofthe frame and in:v

-normalljxT tends to maintain the parts in` ingly held against a stop bya spring 175, and is'arrangedinmiediately below an offsetport'ion ofthe forward end 'ofthe leverl 170, all as substantially disclosed in the prior A Letters Patenty No. 246,437. A movable 'L -i brake shoe77 carried by thefyoke 63, has a conical recess to engage a coperat-ing conical brake memberv 78 which is-xed to and rotates with the shaft 1,l and when the member. 62 is moved out of engagement'with the loose pulleythe brakey members are caused to engage limmediately'-thereafter, thus against a curved clenching anvil 70, which is carried by a shaft 71, ivotally supported from a bracket 72 extendlng from the frame. The pivot shaft 71 has an eccentric bearing 71, Fig. 3, which, through a ring 71", Fig.

2 secured thereto may be turned to adjust the anvil 70 relatively to the end of the nozzle 13-'so as to Aproperly position these'parts for variations in thickness of sole lips, or

l@ other shoe parts through which the staples are to be driven, and then clenched. An

arm74 having an inclined slot` 75 is carried l rigidly by the shaft 71, and a lever 76 fulcrumed at an end 77 to a fixed part of the l fframe, is pivotally joined at 78 to the no-zzle 13, and at its free end carries a pin 79 I that works in the' slot 75. By this construction, the pressure against the nozzle which is exerted by a shoe will eiect, through the lever 76 and connections, a combined inward and upward movement of the anvil 70 to position its clenching end against the inner side of the rib on a sole ata point immediately opposite the end of the nozzle from which the staples are driven, so as to be in position. to clench the staples, as shown in Fig. 3. A

The shoes maybe presentedl to the machine by hand, if desired, but preferably a jack will be employed of the construction illustrated in Fig. 1, in orderl to aiford a rm and reliable support for the shoeand to relieve the operator of unnecessary strain.

A lever 80, fulcrumed at 81 tothe base ofv the machine, supports a standard 82 to which is connected by a transverse pivot 83 an angular jack arm 84. A rigid extension 82a of the standard has a segmental slot 85 to receive a clamping bolt 87 which passes through the arm 84 and serves to'clamp the jack in the different positions otadjustment to which it maybe moved about the pivot 83, but when Shanks as well as foreparts of shoes are to be lasted and stapled the bolt 87 will be left loose so that' the 'shoe can be moved toward and from the machine about the pivot 83. Theshoe-supporting plate 88 is connected with the arm 84 by a pivot pin 90 which lies substantially at right angles to the pivot 83, and the plate is turned about the pin 90 as an axis as the-shoe is moved around to present different portions of the upper to the staple-driving mechanism. A block92 is supported, with capacity for lon-v gltudma] adjustment, on the plate 88, and a toe rest 94, pivoted to the block, engages the upper portion of the vshoe near the toe end. A pivotally supported spring-pressed heel pin 96 is connected to the o posite end of eo the plate 88, and coperates wlth the toe rest 1n supporting a shoe in position to present the edge of the upper to the lower end'of the nozzle 13, as shown in Fig. 1.

The jack-supporting lever 80 has a laterally-projecting stud 98 which is engaged by an edge portion of a treadle lever 20, ful-l crumed at 102 to a iixed bracket. The rear end of the lever 80 supports a rod 103, which is guided vertically in a hole through a lug 101, rigid with the frame, and a spring 104 Iextends from the frame base to an adjustable nut on the rod 103. Pressure of the operators foot upon vthe treadle carried by the lever 20 serves to raise the jack from lowered, to raised position, and to press a shoe carried by the jack against the nozzle 13 ;d and the wei ht of the jack and its associated parts is sufhcient to return the jack to lowered position again when the operator removes his foot from the treadle. If the operator should allow the jack to fall suddenly j the descent of the jack will be' cushioned by the spring 104, and unnecessary shock, with possible injury to the parts of the machine, thereby prevented. This spring also acts\to pail'tially counterbalancethe weight of the Jac In the use of the machine,a last with a sole, upper, and lining properly assembled thereon is placed on the jack, with the upper face of the forepart engaging the toe v vrest 94, and the jack pin 96 within the jack yclutch-retaining lever 170. The spring 66 will then eiect engagement of the clutch member with the loose pulley, and the mechanism of themachine will feed forward and cut otf a length of wire, form it into a staple, and drive the staple through 'the upper,

lining and rib of the shoe, vand clench its ends against thev anvil 70. The described machine parts will then be returned to position for repeating' these several operations, and the ca'm 4 will cause the lever 67 to reversely move the lever 64, thereby unclutching the shaft, applying the brake, and bringing the machine to rest. After each vfastening is driven the operator lowers the shoe to a slight extent, turns it about the axisv 90 to present another portion of the work to the driving mechanism, and raises the shoe to againactuate the staple-forming and driving mechanism, a complete cycle of the machines operation being performed for each successive fastening that is inserted in the work.

The right is reserved to make such changes in the form, proportions or relativev arrangement of the several parts herein shown as illustrative of a preferred em-A fore the power mechanism is connected with the forming and driving mechanism.

2. In a machine of the class described, the combinationwith mechanism for forming and driving staples, and power oper-v ating mechanism therefor, of means actuated by pressure applied through the work for causing said first-mentioned mechanism to be operated by the last-mentioned mechanism, and a staple clenching anvil arranged for movement toward and also along the plane of the face of the work into clenching position by the pressure applied through the work. i

3. In a machine of the class described, the

combination with mechanism for forming and driving staples, `of a movable abutment v through which the staples are driven, means actuated by pressure of the work against the abutment to cause said mechanism to operate, and an anvil to clench the staples movable into operative position when pressure is applied to said abutment.

4. In a machine of the classdescribed, the combination with mechanism for driving fastenings, of a nozzle for engaging the work and through which the fastenings are driven, a clenching anvil, land meanslactuated by pressure of the workagainst said nozzle to cause said mechanism to operate and tol move said anvil into position for clenching the fastenings.

5. In a machine of. the class described,

the combination with mechanism for driving fastenings, and power operating mechanism therefor, of a'nozzle for engaging the work and-through which the fastenings are driven,I a clenching anvil, and means actuated by pressure of the work against said nozzle first to movev said anvilinto position for clenching the fastenings and then to start the power mechanism for operating -the driving mechanism.

6. In a machine of the class described, the combination withl mechanism adapted for driving fastenings through a shoe upper and the rib., of the sole, of a movable nozzle arranged to force the upper against the rib and having an aperture through which the fastenings are driven, a. clenching anvil,

means. vactuated by pressure of the shoe n .against said nozzle to effect the operation of said mechanism, and means also actuated by sald pressure to move sald anvll mto 'clenching position against the opposite side of the rib.

7. In a machine of the class described,

the combination with fastening-driving anvil movable into and out of position to clench fastenings, and connections between said nozzle and anvil constructed to cause the anvil to move into clenching position when pressure is applied to the nozzle.

8. In a machine of the class described, the combination with fastening-driving mechanism, of a movable nozzle through which the fastenings are driven and connections to effect the actuation of said mechanism when the nozzle is moved by pressure applied through a shoe, a clenching anvil, and connections between said nozzle and anvil constructed to cause the anvil to move into po' -sition to clench fastenings when pressure is applied to the nozzle and to move out of such position when the nozzle is relieved of pressure.

, 9. In a machine of the class described, the combination with a movable nozzle through which fastenings are driven, of a pivotallysupported clenching anvil, an arm connected with said anvil and.having an inclined slot, and a lever fulcrumedl atone end and at its other end carrying a pin engaging said slot, sfiiidlever being connected with said nozz e. v

10. In a machine of the class described, the combination with av movable nozzle through which fastenings are driven, of a clenching anvil, a pivotl supporting said l anvll, an ad]ustable eccentricv bearing forsaid pivot, and connections between said nozzle and anvil constructed to effect moveto permit the anvil to move out of such p0- sition when the -nozzle is relieved of pressure.

11. Ina machine of the class described, the combination with mechanism forsform- `ing and driving fastenings, of a clenching anvil, a. pivot supporting said anvil, an adjustable eccentric bearing for said pvot, and means constructed to effect movement of the anvil into clenching position in response to pressure of the work.

12. In a machine of the classfdescribed,y the'combination with a movable nozzle to engage the work and through which fastenings are driven, of fastening-inserting mecha- .ment of the`anvil into clenching position when pressure is applied to the nozzle, and

nism controllable by said nozzle, a clench.

ing anvil arranged for engaging an opposite side of the work, a pivotal support for the anvil laterally removed from said nozzle, and connections between said nozzle and anvil to effect, through the nozzle, movements of the anvil into and out of clenching position.

13. In a machine of the class described,

the combination with a movable abutment,"

of fastening-inserting mechanism controllable by pressure on said abutment applied through a shoe, and a jack constructed to present a shoe with its so-le substantially parallel with the direction in which the fastenings are driven and to permit the shoe to be turned about an axis substantially perpendicular to the plane of the shoe bottom.

14. In a. machine of the class described, the combination with mechanism constructed and arranged to drive fastenings through a shoe upper and the rib of a sole, of a jack constructed to present a 'shoe with its sole substantially parallel with the direction in which the fastenings are driven and to permit the shoe to be turned about an aXis substantially perpendicular to the plane of the shoe bottom.

15. In a machine of the'class described, the combination with a movable abutment, of fastening-inserting mechanism controllable by pressure on said abutment applied through a shoe, a jack constructed to permit a shoe to be turned about an axis substantially perpendicular to the shoe bottomy for presenting different portions of the shoe edge'to said mechanism, and treadle means to raise the jack and press the shoe against said abutment.

16. In a machine of the class described,

the combination with a movable abutment,

of fastening-inserting mechanism controllable by pressure on said abutment applied through a shoe, a jack constructed to present a shoe with its sole substantially parallel with the direction in which fastenings are driven, treadle means to raise the jack and press the shoe against said abutment, and means to cushion the reverse movement of said jack.

17. In a machine of the class described, the combination with fastening-inserting mechanism and means to cause said mechanism to operate by pressure applied through till the jack, and means actuated by the pressure of the shoe when the jack is raised for initiating the operation of said mechanism.

19. In a machine of the class described, the combination with fastening-inserting mechanism the operation of which is controlled by'pressure of the work, of a jack comprising an arm, a plate supported from the arm and carrying means to engage the fore-part and theheel-part4 of a last having shoe materials assembled thereon,means co-nnecting said plate and arm for permitting the shoe to be turned about an axis substantially perpendicular to the plane of the shoe bottom forpresenting dierent portions of the shoe edge in position to receive fastenings, and means for raising the jack to initiate the operation of the fastening-inserting mechanism.

20. In a machine of the class described, the combination with means for driving fastenings, of a movable nozzle through which the fastenings are driven, a clenching anvil, and means to cause said anvil to move into operative position when pressure is-.ap-plied to said nozzle.

21; In amachine of the class described,

v(the combination with means for driving fastenings, of a movable nozzle through which the fastenings are driven, an anvil movable into and out of position to clench fastenings, and connections between said nozzle and anvil constructed to cause the anvil to move into clenching position when pressure is applied to the nozzle.

22. In a machine of the class described,

the combination with a movable nozzle to engage the work and through which fastenings are driven, of a clenching anvil arranged for engaging the opposite side of the work, a pivotal support for the anvil laterally removed from said nozzle, and connections between said nozzle and anvil to effect, throughthe nozzle, movements of the anvil into and out of clenching position.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

' J AMES CAVANAGH. Witnesses:

JENNIE P. ANDERSON, MARTHA O.`BooTHBY.

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