US1019310A - Shoe-forming machine. - Google Patents

Description

A. W. DUNN.

SHOE FORMING MACHINE.

APPLIOATION FILED APR.26, 1909.

LQSS, Patented Mar.5,1912. l

3 SHEETS-SHEET 1.

A. W. DUNN.

v SHOE PORMINC- MACHINE.

APPLICATION FILED APR.26.19L)9. fifi @j gf; AL @u Patented Mar. 1912.

3 SHBETSf-SHEET 2.

A. W. DUNN.

SHOE FORMING MACHINE. APPLICATION P11121) APR.26,1909.

Patented Mar. 5, 1912.

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vwanro ma UMTED lsrarns PATENT OFFICE.

ALFRED W. DUNN, OF -ROCHESTER., NEW YORK, ASSIGNOZR, TO WILLIAM EASTWOOD- & `SON COMPANY, OF ROCHESTER, NEW YORK, A CORPORATION F NEW YORK.

SHOE-FORMING MACHINE.

To all whom it may concern:

Be it known that I, ALI-man 7. DUNN, of Rochester, in the county of Monroe and State of New York, have invented certain new and useful Improvements in Shoe- Forming Machines; and l' do hereby declare thefollowing to be a full. clear, and 'exact description ol t'r same, reference being had tothe aecolnl )airvingdrawings, forming a part of the specification, and to the reference-numerals .marked thereon.

The present invention relates to the manufacture of shoes` and it has for an object to provide a machine for uniting uppers of shoes to soles in such a'manner that it is possible to dispense with the tackingof the `uppers to lastsl and with several operations requiring the handling of the upper on the last.

Another object of the invention is to provide a machine for shaping shoe uppers on lasts in an expeditious manner.

To these and other ends the invention consists in certain improvements and combinations of parts all as will be hereinafter more fully described, the novel features being pointed out ,in the claims at the end of the specilication.

ln thedrawings: -Figure 'l is a Vertical section of a machine constructed in accorciance with the present invention and showing a sandal in section after the sole and the upper have been united. Fig. 2 is an end view of t-he same machine. Fig. 3 is wa planview partially broken away. Figf 4 is a. detail sectional view illustrating the method of applyingr the shoe parts to the machine; Fig. 5 is a detail sectional view showing the manner in which the vamp is stretched over the form or last.- Fig. 1s a detail view showing the manner in which the ,back part -of the upper is presented to the form or last, and Fig. 7 is a perspective view of a sandal after the latter has been removed from the machine, the last being shown in position therein.

In the manufacture of shoes, such as sandals, in which the uppers have outwardly tur.y -d [langes united to the soles, a great number ofv operationsghas been necessary and these operations have required that the uppers be tacked orotherwise fastened during the shaping, thus producing holes which disfigure the shoe and destroy its eiiciency. Further, the stretching o' the upper has lSpecilcacon of Letters Patent.

Application filed April 26, 1909. Serial No. 492,105.

Patented Mar. 5, 191,2'.

heretofore varied, that iS, the -leather has Y been stretched more in some shoes than' in others. In this invention an upper is united to a sole by the same operation which sha es it, thus rendering it unnecessary to emp oy tacks to hold the upper while the sole is be! ing applied.

The invention in the resent instance will be described in eonnectlon with the manufact-ure of sandals, such as shown inFig. 7,

in which the upper is composed of a Vamp 1 and a separa te back piece v2, the latter overlapping the formerat 3 and both having outwardly turned flanges 4 at their lower edges united to the sole 5. In making the sandal vamp 1, the back piece 2 and the sole 8 -are cut in the forms shown and the back piece has a buckle or other fastening device 6 secured thereto for engagement with a strap 7 which, when the sandal is completed, 75

is passed through slits in a tongue 8 on the vamp.

In carrying outthe present invention, the sole 5 is laid upon a sole support 10 that may be detachably supported in a receptacle 11 on main frame 12 and have a depression 13 in its upper surface shaped to receive the sole '5, the support being made detachable in order that other supports for shoes of different sizes may be employed. It is also preferred to coat the edge ot' the-sole wit-h an adhesive 14, such as a rubber cement, in order thatl the upper may be secured .thereto during the shaping. A lastor ,other form 15 beariunr a known relation in size to 90.

the sole and having' its external surface corresponding to the desired shape of the up-A per, is then placed upon the sole and'the upper is then shaped on the last b a shaping mechanism comprising pre erably a vamp die 16 and a back piece de-17, the former having an internal wall corresponding in shape to the external vamp portion j of the last. 15, while the latter has a wall corresponding'in shape to. the external heel 100 or back portion ot' the last. The vamp and the back piece die may be located at opposite sides of the sole support and movable toward and fromeach other on the shaping operation, this movement heilig preferably 105 etfectediby pivoting the dies at 18 on opposite sides of the receptacle 11 and providing them with a common operating means so that the dies move simultaneously toward the last and coperate`with the same simultaneously,th-iis causing .the last. to be properly positioned or centered on the sole.

The common'operating means for the dies 'may com rise ra lever-19' pivoted at 2.0 to the frameo the. machine and connected by al link 21 with a slide .22 which carries a cross head 23, the-op os'ite ends of the cross head f being connecte to the dies by links Qta'r- V ranged in pairs .at each end and having eachmember of the-pair connected to a die.' .A

.depression of the treadle or'- operating lever 19 'will move the dies toward'the last and -Will expand coill spring l2:? that is secured. to

' has Beenplaced upon. sole` 5, the vamp blankc 1, which'previously has been coatedA :with 'an .adhesive along its Alower and Vits overlapped portion 3 a'ndthen moistened, is

laiddoosely ln-proper position on the last or fom, while the back piece blank 11m-Coated 25 with an' adhesive along its lower 'edge and overlapping portion 3 and then inoistened, is

' fitted Within die 17g-inthe manner shown in Fig. 5, with its strap 71held by the buckle 6. The lower forward edges ofthe back-piece "are now turned outwardlyjbyfhand and held in this position ',w hile. the dies are being moved. toward theu last. In moving toward thelast, the edge 27' on ,the vamp vdie first frictionally but loosely engages 4the vamp blank in an unbrokenline about t-hedast and away from the lower' edge of the blank, thus causing a slight stretching of the'vamp'o'ver the last,'-'the .Stretching being immediately;

followed by a clamping y lower'edge of the-*vamp agamstthe sole 4by the outwardly presented flange `28.v During the stretching of the vamp, the backk pie c e.2 is applied `to the last`and'shaped, thuscausing the forward ends ofthe back piece to overlap therear ends of the vamp and itsedge to be pressed against.. the sole by the outwardly presented iange' 29 simultaneouslykwith the pressing of the edge of the vamp against the sole.- 4After a sufficient pressure on the outwardly turned portion 'of the upper has been applied the dies may` be raised and the shoe with the last .therein removed from the machine for stitching and or pressing of the other operations For making' shoes of other sizes other dies and sole supports are *substituted for .those herein shown, the sole support 10 merely rest-ing in the receptacle 11 so that it may be quickly removed and the dies being detached by removing bolts or pivots 18 and the pivots 30 that connect the operating'means to the dies. If it is desired only to shape the upper, t-he sole may be replaced by another similarly shaped surface which will project beyond the edges of the last so that the lower edge of the upper may be deflected outwardly 'to be pressedby the pQrt-ions 2S and 29.

lith thisinvcnlimiit is possible to manufacture shoes at'a great deal Vless expense, as the'opcration of nailing` the upper while itis-being shaped is dispensed with and the from each other and into and-out of 'co' Operation with a lastsupported on a 4sole on the support to shape the upper and having lateral'portions adapted to engage theedges of thenp'pcr to press said edges flat-wise into engagement with the sole.

2. In a shoe machine, the combination with a sole support, of vamp and back piece .shaping dies operating toward and from a last supported on a sole on th'e support, and

common operating means orsaid dies.

3.-'In` a shoe machine, the combination witha support having a depression therein formed 'to rcceiveua sole, of upper shaping 'mechanism vcooperating with a last supported on a sole in the depression to shape an upper over the last and' having lateral portionsadapted to engage the edges of the upper .to press said edges tlatwise into engagement with the sole in the depression.

4, In a shoe machine, the combination.

with a support for a shoe sole, ofa lpair of .upper shaping die members movable'toward and -fromthe toe and the heel of a last' arranged on a sole on the support to press the edges ofthe upper against the sole.

In a shoe machine, the combination with a support for a sole, of a pair of pivotally mounted upper lshaping dies movable towardfand. from the toe and the heel of a last arranged on a solo on the sole support.

6,111' a shoe' machine, the combination with asolesupport, of pivotally mounted vamp and back piece dies operating toward and'from each other at opposite sides of the support,and a commonA operating means for said dies.

7l lfnea shoe machine, the combination 'with' 4a sole support, of pivotally mounted vamp and back piece dies `)perating toward and from each other at opposite sides of the support, and a common operating means for said dies embodying a treadle, a cross head and two pairs of links, cach pair connecting one end of the cross head to one side ofeach die.

8. In a shoe machine, the combination with a support. and a relatively stationary form having a portion shaped to correspond io the Vamp 0f an upper, of a die i'nomhcr l pivotally mounted on the Support' to mici side of the forni and having an inlornal wall correspmidinglo the axtvrimwall ni the form, and nio fable into coiipcrativcrc*- lation therewith in a downward diimlinn oward the Sole oil the forni,

9. ln a Shoe inarhine, the rmnhinaliun` with a Support and a rlatixf'clyi stationary forni haring a por'rion shapcd vxlurnally to correspond to the nach of an upper. nl a 1 die member having an 'inferior wall corr(xsponding to the rxternal wall of thi` lfirnr said members being` niovahhi nn thil support x into and ont of operative relation lo lla forni in a downward and longilndinal dirucion relafivsly t0 the latter. l

l0. In a shoe machine, the conibinalinnl i having an inferior shape corruspmnlngr wil'h a support and a relalively Sl'al'ionary form having' a portion Shaped externally i0 cfnrrcspond lo the har-l; oi an nppm. of a di@I lo the rxtornal shape of the 'forni' and pivnlcd lo the support beyond on(x vnd 0F the Form to inmr in thel plane ol ihr longitndinai 0K- lcni nl' the latlor.

1l. The mnhinal'inn willi a snitalily sul pnrml last. nl a pair of dii lnrlnlarS inni'- ahhx inward and from lhi last l'rnni oppiilrf sldrs lhircof. and moan# for sinnill'axwonsly nim-ing Said die nwnihirs toward lhr last.

,UPRICD W. DUNN. ll'ilnosses:

{rsa1-:LL B. Giura-1TH. Hamam H. Sums.

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