US1774963A - Lasting apparatus - Google Patents

Description

` Sept. 2, 1930. H R COLLINS 1,774,963

LASTING APPARATUS Filed oct. 12, 192s C? USSGM i PatenteclgS-ept i i 11 ff/1,774,963* f fr oHARLEs HORACERussELLrfooLLINsj OEBNDLNEAB. SYDNEY, `nnwsouTHWALES;

. in close,contactftherewith' by 'those means' tinguis'hable from the prior art in which the the machine; and` f -is engage'able with a staple `pin-16 fixed on a i boltsor'studs 23.` The jack mould 22k may j According top-this invention;ybootsand;l v

'onfits under side 20A kto correspond with the contourfof theshoe insole'onthefwood or f metal last 26and toofierclearance for the vthe parts are set upgin the pneumatic ma-v 'tion'ofthe machine.-

thereon at 12 on a bracket `lfandextends Y *AUSTRALIA LAYs'rINGiAPlBRA'rUs f .applicationV mea ottenerne, '11928; "seriale im?,`

shoe uppers are-Vpulled-over. and lasted in ,a machine in which V theupper is'drafted and its skirt infolded, pleated', an'd'pressed` :down Y Vinfolding` v of the marginal part' "of thejdiafphra'gm. A irholes may `heprovided to allow fthe air to be displaced frornjthe said Amargin orl'space above the'sole when the diaphragm is placed under pressure. The marginal'part on the insole by; pneumatic means and held until attachment ,between the sole. and thef upper skirt hasbeen established'rlby an 'adhesive whichis applied to the surface'sbefore chine.V The invention is thus broadly disdrafting, pulling, over', and llasting' are performed eithermanually or byfmechanicaly devices co-operating with manual manipula# tion. v

l VApparatus embodying the-@invention l will be more fully described with reference to the accompanying drawings, in lwhich Y Fig. 1 is a verticalk sectional .elevation ofV Fig. 2 is a fragmentary. sectional view on enlarged scale villustrating part of the operai j is one 'ofthe end frames oftheniachine,

and 11 a yoke which is pivotally mounted` rearwardly over the' frame 10';the vertical end-of ythe yoke 11 is 'litted with a cam claw.l lever lllwhichissfulcrumed on a pin 15. and,v

lug 1( on the frame 10 to lock 'down theL yoke. 18 and 19 are adjusting .screws tapped through the yoke; they carry a follower block l20-whichv is shaped to set within ay marginv ring 21 which is secured down to the; rim of the .open'top jack mould 22vby means of .be fixed in the frame 10 or built integral with n it. It is shaped to contain a lasted upper stantially greater than thedepth of the .last

Vthis space being necessary to allow the diaphragm to fold in` over the shoe sole las seen aiaiseanafin Australiav o'ctber 2s, 192i?. C

einig-2. Ttegfoiiower vblock '72o is Shaped?,-

ofthe face of ,the .diar'ihragini which downfol'ds on the` skirt lof theuf'upper'. israpprofprifately corrugated in order to laythepleat eingjof the upper skirt symmetrically,' par;

ticularlyjaround the t'oe and heel. `'The yoke 411 is 'locked `down byinea'nsv ofthe cam .lock

leve'rlt. The margin' ofvr the insole and the inner face of the upper `skirt areiserved with rubber] solution or pastefor otherfsuitable..

.y .agglutin'ant before or alfterlithel shoe on the I ofthe Qjaclmould 22 hasa -cylinder'4Olitted yto it. A plunger works'through rastuflng last isset in the jack 'mouldl The lower part 'box 28Y in thisfcylinder, and the space between .'the'headofthejpiston 27 and the diaphragm "251 contains watelf'or other,y fluidLwhich will fnt'jinjure therubber.` Infpractice wateris;l '.preferably used. ,Thegbottom end offthe y `)plunger 27l is articulated through an extensi ble link29 with a rock lever 30 'which is fulvcruined' on theback partof theframefw. yThis rock lever30 is" actuated by an oifset roller pin 33 on apedal' lever 31 which .is ful#k crumedoirthe frame y10 at 32. 35 'isan` 'arfcuatebar pivoted to the'frame at 35 Vand havingastop 3e? at the upper en d engageable with'the'lever 31; the curve of this bar is sweptl from they centre of the pedal lever ful-A lcrumj32;1thegface of itslides over the face i 3,6 on vtheA back of pedal'37 the pedal is y yfulcrunied on the pedal lever 31 at 38. The 90' i within a. diaphragm or 'liner 245 of* shaped .disposition of the' centresis such thatwhen` `flexible rubber. The lip porti'on25of this diaphragm is'secured tothe cover ring 21 which is fixed by bolts`23 tothe rimportion ofthe jack mould 22, Aand its'depth .is subf vthey pedalf37. is tipped backward the arcuate .Y bar'35 is pinchedV between thepedal facev 36 yand 'the stopI 33*v 'and the pedal'leveris thus locked; theplun'ger 27"is thus held inraised position infthe cylinderKV maintaining pressure on thefdiaphragm during the` setting period .i

Yin which thel skirt upper becomesxed to the insole.` hen the pedal'37 is tilted forward# 1y and'permitte'd to rise by easing foot pressov4 i sure on it, its grip ofthe bar 35 is released and the lever 3l maytlien rise and the plungrerj27 descendrto'release the pressure on the diaphragm.

When the pedal lever Slis depressed,upward thrust is applied to the plunger 27. The

yWater or other fluid below the diaphragm being thus placed under compression pressesl upward andfinward over the whole area lof v the last so that ak good shaping is assured and the fullness is brought down to the fslrirt.

.The pressurev acting on Vthe diaphragm Qllalso folds it inward (see Fig. '2), over 'the insole ,forcingfdown the upstanding skirt portion fof the lupperv on the insole; ln this pulling Y over` ofthe upper, the diaphragm operates to pleat thefskirt symmetrically down over the insole on the bottom of the .last so that the crimps yare flattened as if theyV had been hammeredfdown. VA period of rest of a few seconds `toallow forthe-'setting of the agglutinant under pressure is allowedg'then the pressurel is'released by tilting the pedal to allow the 'lever 31 Vt'orise and the plunger 27 to descend. The latch 14' Ais then released and the-yokell thereby lifted out the folment is obtained. The pressure is maintained as before until the agglutinant is suiiiciently set. The follower. 20 may be steam heated or electrically heated to eect Vulcanizationof the wear sole piece onto the boot body. l VVhatl `claim as my invention and desire to secure by Letters Patent is A shoe lasting machine comprising an open top jack mould, an open top inflatable diaphragm fitting closely within said mould withy its edges xed to the rim of the mould, a sol-e shape follower block adapted to pass into the open top of the diaphragm and to bear uiponthe sole of a shoe contained there in, means/for introducing fluid into the interstitial space between the jack mould and the diaphragm, said meansincluding a ycylinder, a plunger operativ-e in said cylinder to Vapply pressure -upon said fluid to distend the diaphragm inthe mould, a pedal leve-r opera- "ti-vely connected to said plunger, and means for locking said lever'in position to maintaii pressure Von the diaphragm.

lnv testimony whereof l aliix my signature. CHARLESHORACE YRUSSELL COLLNS.

lowerV lblock 20,".k lf;y so desired, Vthe skirt of thenp ,er may Vbe tackeddown to the insole `after lt iefollower has been lifted.- The last, carrying the Supper and theV insole, may the be lifted out of thevmould jack. i

In operatingthe machine, 'the upper 50 ijs stretched over the. last 26 withy its skirt por- "tions upstanding as shownin Fig. l, the thus I' ycovered last is set in the ack mould, andthe insole is setover thersole y.part ofthe last. The marginal lportions of theV insole and :the

npper skirt are; servedv with a [quick dryingy Vrubber solution or anA adhesive paste. The follower lblock k20 isjnow set vdown to bea-r .on the'insoleQ/The marginal part [of 'the insole on whichthe skirt of the upper is to set is not :covered Vby the block 20, Correct adjustment of the snetof the followerblock f If, however, it is required to attach the `-upper upon it is lretained onthe jack mould and a surfacing of adhesive is applied over ythe insole and the pulled over skirt of the upper, and a sole pieceis set in position over them after first spreading agglutinant upon it.4 The follower 20 is then brought down upon the insole and thepleated-in skirt, the

agglutinatinfrmaterial is spread between the wear sole and the insole and; the lasted-in skirt of the v upper,y and a clean strong attachfon the insole is obtained by means of the screw v Y ystuds 18H-19. Y

`Wearing soleto the shoe by rubber kgum or ,like adhesive, the last with .the insole :and

Images