US1833229A - Machine for lasting shoes - Google Patents

Description

Nov 24, 1931. F, SAH 1,833,229

MACHINE FOR LAST ING- SHOES Filed Jan'. 29, 1930 2 Sheets-Sheet l NOV. 24, 1931. F, s 1,833,229

MACHINE FOR LASTING SHOES Filed Jan. 29. 1930 2 Sheets$heet 2 HI Ill) Patented Nov. 1931 i raAnxsAnn, oncommscs onrof ron 'Lesrme gThisinvention relates'to machines for last- 'ing shoes, and has particular reference to lasting machines of the type wherein a shoe upper is fitted to the last by the employment 5o-f wire connectors wherein a wire is connected with the welted edge of an upper and by the provision of the machine the wire is "drawn taut" so that the upper is secured "and stretched around the last toass'ume a'cleloisii'ed shape or contour. r

Itisa primary ob]ect of'the present 111- vention to provideda simple and'improved With these and other objects in view which will appear as the description proceeds, the inventionfconsists in the novel features of construction, combinations of" elements and arrangements of parts hereinafter to be fully described and pointed out in the appended,

claims. i r V In the accompanying drawings: i Fignrel'is a side elevation of a lasting machine constructed in accordance with the present invention, f i r I 'FigureQ is atop plan view thereof, Figure 3 is s a vertical transverse V sectional view on the plane indicated by the line'8"3 of Figure 1, V

Figure 4 is aired'ge elevation of the wire tightening arbor and its associated locking and rotating'mechanism,

40 taken on'the lines 5-5 of Figures 1 and 4. Figure 6 is a, detailedview in vertical section taken through a shoelasted in accordance with the presentinv'ention,

Figure 7 is a detailed bottom plan View of the shoe, V a

- Figure 8 is a detail'perspective view-showing the interlocking levers governing the retation'of the wire tightening arbor,

Figure Qis a detail perspective View of the shank of the wire twister, and.

the twistingtocl in an operative position-t In the lasting of certain styles 'of shoes an upper 1 is placed over a last 2, as shown in Figures 1, 2 and 6. An insole is desig-F'ifi nated 'by thenuineral '3 and ai -welt 4s is r se: v

cured to the edge of the lupper andthe linQ mg! by means of the'cross stitching 6. 5 The stitching also serves to connect securely' 'l with the nner edge 7' of r thelupperi a lastmg-wire '8 which, when :tautly'drawn and t twisted, as shown in Figure"2,"draws the up-' per around the last to produce a shoeiof'del sired shape, and this operation is accomplishedj without the employement of tacks and other devices which i tend to mutilate theilast and to-frender its period-"0f usefulness short. I

Moreoventhis lasting operationwith the use useof'the" wire8 in connection with thewelting'machme hereinafter described-indetail', v V

is capable of being quickly: and economically effected and a shoe of improved appearance produced. The outsole 9 may then be'c onnected in the usual manner withthefiwelt 4- and the space or pocket '10 formed be- 175 tween the outsole, the insole and bound by the wire 8 maybe filled with asuitablefiller 11.1 It will be noticed that the wire 8'is po- .sitioned'in the pocket 10jwhere1itdoes" not interfere with the construction of the shoe 580? nor will it provide any discomfort for the wearer. ;Moreover, passing the stitching 6' through both the welt and the upper 7 a double thicknessfofmaterial is provided f V which prevents'tearing' thereof at thetiin'ei the wire is being drawntautto shape the up'per'around thelast.

a v vf TThe .rese nt invention deals artic ularl "Figure 5 is a horizontal sectional view p p i y lockto retain the same in such condition. v To this end the machine consists of stationary basei12, suitably fastened to. a floor or.

other foundation 13. The upper portion of the base terminates in a horizontal table '14:

from wh'i ch arises a stationarypedestal15. 4

Theupper end "of' the pedestal terminates in a a laterally andhorizontally directed arm r i Figure 10 issimilar to Figure 2 and sh0ws', if

which has its outer end downwardly turned to produce a'stationary last rest 17. i

Carried by the table 14 is a vertical guide 18 in which is slidably mounted a bar 19.- The'upperendof this bar is threaded for the reception of a head 20' which is centrally' bored fontheizreception ,ofa-yieldable; jack post 21,:the saidfpost beingpreceiveiias,is

customary, within .an opening provided in thelast 2. The a ck post is resiliently .sup-

Thebar 19 is adjustable v'er:

co'nnected at its lowerlend with-a foot pedal 2l-pivoted on the base 12 as -at 25.- By press 'ingdownwardlyon vtheioperating end of the pedal 24 the'bar' 19 is elevated so that the f last 2 will be forced upwardly into engageme'ntwith' the rest 17. This position is rehfltained by providing the bar 19 with ratchet teeth 26 with which engages a pawl 27 which 7 is pivoted as at 28in connection with'the 'gguide- 18 and .is pressed by a spring 29 nor-' 'mally into contact with the teeth 26'. The

lowerend of the pawl 27'is connected with V a slidinghandopera ted rod 80 which projects towards ;the operatorsside of the machine land isslidably mounted in connection'withthe base 12. By pulling on the rod 30jtheipawl "maybeswung to a position clear'ofthe teeth '26 so that the jack post may be raised or loweredwith relation to the stationary rest 17 When the pawl 27 is released a spring 31'connectedfwith the pedal' 24: operates to 'positively movelthe j ack post ina' downward direction; However, this movement is usually re ulated by :tootpressure by the operator which are positioned within slots .',in a" tightening arbor 345 o This'arbor-is rotatablymounted in stationtothe pedal 24.

.Todraw the w1re 8' to a taut condition so that the upper will be stretched about the I outer surfaces of the last, the said wire :is" crossed, after passing around the inner-pe-' riphery of the sole, as indicated at 32, and terminates in diverging extension, the ends of 33 provided ary bearings 35 projecting from the pedestal 15, and its rotation is effected by means of a :counter shatt-36Lwhich isisupported in connection with bearings mounted on the table j 1 4. 1 l Oneend oft-he shaft 36 is equipped vwith 'a :hand Wheel 37 -and the other end thereof carriesa gear 38, which meshes with a similargear 39 fixedlto therarbor 84. It will be seen that byrotating the hand wheel 37cmresponding rotary motion may be imparted to the arbor, and this motion is utilized for j the p'urpo'sefof placing the wire 8 under ten- ,sion'so as tostretch the upper around an associated-last." I

'7 To lock the arboro'in a fixed positionofro t ation', the arbor is provided, adjacent to the gear 39 with a ratchet wheel 40 with which hits taut'condition. i V 5 v I In thespecificform ofthe machine illus- V tr'ated, the arbor 34 is spaced from the last 1, ,After the wire 8 has 7 1,ss3,22e

engages a spring'pressed pawl 41. o Thispawl is pivotally mounted as at 42 on a bracket a spring 44 carried by the bracket engages with the operatingend45 of the pa-wlfll in i order to normally maintain the detent end of i said pawl in; engagement; with the teeth of 13 carried in conjunction with the table 14,

thefratclietgetll, lwhereb'ythe arbor is automatically locked in any of its rotated positions and likewisethe wire 8 is'retai ned in 2.and therefore IV-provideadjustable roller "guidesti between said last and the ends of the arbor, which function to direct the wire j riedibythepedestal 15. I I iv been, drawn to a desired taut condition and placed under a prop er degree of tension necessaryfor drawing the upper aroundthe last, I'then retain that during the time it isbeingitightened by the arbor, and to controlthe operatingypositions thereof. [The rollerstti are carriedby V011 tically adjustable brackets 9&7 which are monnted in;conjunction with bearings48 carportion of the'wire in engagement with the i upper permanently in its taut or stretched condition-by twisting the wire'as'indicated at 49 where the crossed strandsof thewire meet, as indicatediat 32,: in the stretching operatio'n: Thetwisting of the. wireas at 49 per manently retains the wire-in its tlghtened condition whereby';the-.upper is stretched 1 aroundthe lasts so that upon the subsequent'removal ofthelast from the shoethe L "desired form of theshoe will'lbe retained,

' The formation of the'twist 49is effectedby' the provisionjofya twisting device 50. :In' the particular, form of the invention 1llus 'trated this device consistsio-ta tool shank 51 which is positioned within enlarged guide openings 52 formed-in the pedestal 15 and inthe rest 17, the'openings, 52 beingof such? size as to. permit of some manipulation on the part of the tool shank 51. The outerend of the tool shank is equipped with a handle 53- permitting the implement *tobe readily j manipulated-.1 The inner end-of the shank' 51 is provided with ahead 54 formedvw'ith dove tail slots56. ,These slots are so formed Y 7 that ,they may be engaged with ,thediverg- 1 ing strands of wire immediately to the rear of their crossed pointof juncture 32. While the wire'is maintained in a stretohed or taut condition throughuthe operation of thearbor L 84, the twisting implement is inserted into the openings 52 and, engaged with the crossed strands of the wire, against theresistance of a spring 51a; Then by partially rotating the shank 51 around "its longitudinal axis through approximately 180 of movementa slight initial twist: is imparted to the'wire at the point 32 to'hold thewire against'slipping and loss of its tautness where it en 'inssaaee gages with the upper 1 Following this initial twist ofthe wire the pawl 41 which normally locks the ratchet wheel 40 in the arbor is rocked manually to release thearbor, and

this operation serves to relieve the tension of the wire strands which are positioned between the partially twisted crossed point 32 to the ends of the arbor. The pawl 41 is-held in this arbor releasing position by a detent 56 which, when the pawl 41 occupies anarbor-releasing position, engages with a'recess 57 formed in one of the side walls of the pawl .41, thus positively holding the pawl 41' from locking engagement with the arbor. Dueto the slack which this latter operation introduces into the divergingstrands of the wire 8 leading to the arbor, it is now possible to manually rotate thetwisting device ,50 toprovide the series of twists 49 in thewire 8 which retains that portion ofthe wire surrounding the edges of the upper l in its desired taut condition with the upper stretched aroundthe last 2. The wire may then be severed immediately to, the rear of the twisted portion 49 in order to free the ;an elevated position by the employment of a coil spring 59. To the lever 58 there is pivotally connected apair of Jaws 60 which have their lower ends formed with cam surfaces 61, which surfaces arenormally in en gagement with collars 62 slidably mounted on the ends of the arbor shaft and which are maintained in contact with the-cam surfaces 61 by the employment of springs 63. a By. rocking the lever 58 downwardly the jaws 60 move the collars 62 longitudinally and outwardly of the arbor shaft, against the resistance of the spring 63, until the collars force the wire strands from engagement with the ends of the arbor. The operator may then release the jack bar '19 by operating the rod 30 to permit the last and the upper associated therewith to be withdrawn from the machine, which completes the operating cycle of the machine. The detent 56 ismoved then from engagement with the pawl 42 to allow the latter to return to its normal posi tion'of engagement with the ratchet wheel40. The operations described are capable of being very quickly effected by the machine attend ant and a shoe of desired appearance pro duced. i 7

What is claimed is: v T

1. In a lasting machine, a frame, means for detachably securing a last to said frame wherein the last is provided with an upper having an attaching wire secured thereto, an arbor rotatably mounted in connection with 1 said frame andto which the ties of trlwim are attached, manually operated means' for rotatingsaidarbor to place said wire under lite'hsion throughoutthe entire length thereof j'means forlockmg the arbor 1n a position l e-e7 taming the wire undertensioma manually t operated twistingdevice carried by said frame and engageable with the wire between its point of connection with the upperand with said arborfo'rtwisting'said wire, and means:a'dmittingiof the release of said arbor topermit ofithe completion of, thewiretw-isti said arbor; 7'

for detachably securing a last to said frame 'wl'ierein the last" is provided with an'upper ('2. In a-lastin g machine, a frame, means ingoperationby releasing :the' tension on said wire between the point of twisting and a 'havinganattaching wire securedthereto, an a arbor rotatablvmounted in connection-with? said frame and to which'theends of the wire are attached, manually'opera-ted meansfor rotating said'arhor to place said wire under tension throughout the entire length thereof,

means for locking thearbor in a position 're-f Q:

taining the wire under tension a,

, manually "operated twisting device carried by said "frame and engageablewlth the w1re between its point of connection with theupper and with said arbor for, twisting said wire, means admitting of the release ofsaid arbor to permit of the completion of the wire twisting operation by releasing the tension on said wire between the point of; twisting andsaid arbor, and means for removing from said 'ar-= bor the endszof the wire attached thereto fol- I lowing said twisting operation.

3. In a lasting machine, a frames last 4 a support carried byfsaid frame-for the rje'cep tion of a last provided with an upperhaving a wire 4 attached thereto, an arbor rotatablymounted 1ncon unct1on with said frame and to which thefcrossed strands of said wire are a connected, manually operated means for'rotating said varbor whereby to place said wire under tension sufficient to draw the associateduppertautlyaround said last,manuallypartially twisting thewire at the point of intersection of. its crossedfstrands while the?- operated' means carried by .saidvframe for tension; and meansforreleasing'saidlarbor following saidinitial twisting operation to remove the tension onithe wire strandsbee;

tween'the pointqof twist and said arbor whereby to permit of the completion ofthe twisting operation; 4

In a lasting machine, a'frame, supports carried by-saidframe for the reception of a 7 'lis entire length of the wire is maintained under p 1 nentlyunder tension,

I the point of intersection of its crossed strands tovretain .thatportion oftheleng'th of said 'Wire in engagement with theiupper permaf5. Ina lasting machine, a "trame'structure, :a support carried by Sald-flan'l structure 7 v adapted forthereception ota last which carries an upper with a wire stitched to the" sole engaging edges of the upper, means carried the frame structure for placing the entire, length tithe attaching wire under ten V asionjof sutficient magnitude-toretain the up ;per in a stretched condition around said last,

i means for; twisting said wire while under tension to'maintainthat'portion of the wire connected with the upper'permanently under tension to permit-of the severing of the wire strands disposed beyond. said twisted portion, andmeans for dischargingsaid severed strands from the tension applyingmeans. I r 6. In a machine forlast ng shoes with an upper; having a wire attached thereto, a

frame structure including a pedestal having a ,downrturned last rest, a verticallyjadjustable jack carried by said frame structure behind said rest andadapted for the reception of'a last-,means for moving-said ack vertically' to clamp the last between therest. and said ae]; a manuallyaoperated arbor rotatably mounted ln'jconn-ection wlthsaid.

frame structure means forv securin the ends 7 V 7 v 7 L2 :ofthe crossec strandsofthe attach ng w re to-said arbor to permit the entire length of 40 said i-wire} to be placed under a tension of su fiiolent force tofirmly stretch the upper around said last; means carried by said frame structure for twisting. said wirel at the intersection of its crossed strandstoperma- Q nentl yretainthatportion of the wire in engagement wlth theupper under tension, and I means for releasing said arhorfollowingthe initial twisting of said WHQ tO urellevethe tension on said strands behind the ,last to frame structure including a pedestal? hav- 1 -*'1ng' a down'turned last rest, a vertically adjust-able ack carried 'by said'frame structure initial. twisting permit of thecompletion of the twisting op- 7 machine for lasting 'ShOGS with .a'n 'upperihaving a-wireattachedthereto, a a

suiiicientforceu to firmlystretclItheupper I around said last; means carried by said frame. structure for Itwistmg. sa1'd'-.w1re ;at

the intersection of its crossed strandst'o per- "engagement-with, the upper under itens on manently retain that up o-rtion' of the; wire in means for releasing said arbor foliowing'th-e of aid wire. to relieve the S tension on said rands behind ;the last to eration, and means for positively removing I i I the wire strands .from said-arbor 'following the severing of said strands of thetwisted port on o lf the attaching wire;

' 8. In a lasting machine, a frame structure, 1

iast su'pport formed withsaid'frame struc- -ture and adapted for the reception of ashoe 7 last provided with an upper-and having an attaching' wire securedto the sole engaging l edges thereof, an arbor ournaled transverse 1y in said frame structure for rotation and formed with slottedends, said attaching wire 7 being crossed adjacent to said last and havingthe diverging strands which project be yondthe last connected With theslots in said arbor, EIClJUSt-EtblgllldQ-S carried'by said frame structure between. said-arbor and'said last for the guidance of said strands; manually said arborto-apply tension to said wire at- "operated means for effecting the rotation of taching' member, pawl andrateh'et mecha 1 1116111 co-ope'rat'ive' with said arbor to 'maiiitain the latter in a positionf applying tension {to said wire, means carried by'f'saidffr'ame 1 structure for; twisting said wire at the point 1 of crossing-of its arborengagingstrands, and means 'tor" posltlvely ma ntaining the,

pawl and ratchet. 'mechanis n' in. an arborreleasing position during'thetwisting of the wire attaching member; 1' i In testimony whereof my signature. 7

u FRA K 'SAI-IR. I

behind said rest andadapted fortherecepv tion of:a-1last',,1neansfor moving said jack c vertically to clamp the last between the rest vand said jaclnania nually operatedfarbor rotatably mounted n connectioirwith .said

framestructure, means for securing the. ends ofthe crossed strands of the attaching wire c to said arbortopermit the entire length of 95 said wire to .he placed under a tension of

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