US2722022A - Cement lasting machines - Google Patents

Description

Nov. 1, 1955 J. L. LUTYENS EIAL 2,722,022

CEMENT LASTING MACHINES Filed Jan. 6, 1953 5 Sheets -Shaet 1 [12 van t 0115 John L. Luzyens John W Pra it B neg Nov. 1, 1955 J. L. LUTYENS ETAL CEMENT LASTING MACHINES 5 Sheets-Sheet Filed Jan. 6, 1953 S rm MLP 02W n n h J w Nov. 1, 1955 J. L. LUTYENS ETAL CEMENT LASTING MACHINES 5 Sheets-Sheet 15 Filed Jan. 6, 1955 lnven tors John L. Luzfyens John W Pratt J. L. LUTYENS ET AL CEMENT LASTING MACHINES 5 Sheets-Sheet 4 Nov. 1, 1955 Filed Jan. 6, 1953 In men tors John L. Luzyens John WPr'azz Nov. 1, 1955 J. LUTYEVNS ETAL 2,722,022

CEMENT LASTING MACHINES F l n- 6. 1 I s Sheets-Sheet 5 In van torus John .L. luzyens John W Prazt United States Patent Ofiice 2,722,022 Patented Nov. 1, 1955 CEMENT LASTING MACHINES John Leslie Lutyens and John William Pratt, Leicester,

England, assignors to UnitedShoe Machinery Corporation, Flemington, N. J., a corporation of New Jersey Application January 6, 1953, Serial No. 329,842

Claims priority, application Great Britain January 23, 1952 2 Claims. (Cl. 12-8.8)

This invention relates to end-lasting machines, and is herein illustrated as embodied in a toe-lasting machine constructed in some respects as disclosed in United States Letters Patent No. 2,134,148, granted on October 25, 1938 upon application of W. T. B. Roberts, and as later modified by improved mechanism disclosed in United States Letters Patent No. 2,140,652 granted on December 20, 1938. The machines shown in these patents are especially designed for use on shoes in which the margin of the upper throughout its width is lasted over the insole in generally parallel relation to a last bottom. It will be understood that in many of its novel and useful aspects the present invention is not limited to machines of the illustrated type nor to machines for lasting the toe ends of shoes.

Machine organizations of the character described in the patents just cited employ power operated toe endembracing wipers for wiping the toe end of an upper first heightwise of the last by relative movement of the wipers and the last and then inwardly over an insole on the last, together with tacking mechanism operative to hold the lasting margin of the upper in over-wiped position. Whereas the machine disclosed in the earlier Roberts Patent No. 2,134,148, has tack nozzles arranged to be positioned for operation close to the inner edges of wipers that have been partially retracted (thereby exposing the portion of the over-wiped margin to be tacked), substantially improved results in lasting are attained, as explained in the subsequently issued patent above mentioned, by providing for the tacking to occur after a repeated inward rather than a retractive wiper movement. It is an object of the present invention to provide a further improved lasting machine retaining the advantages of machines having end-wipers operating substantially in the manner disclosed in this latter Roberts patent, and having, in addition, means capable after the repeat inward wiping movement of effectively end-lasting foot wear with an adhesive, instead of tacks, for fastening the lasting margin and insole.

For more permanent retention of the preliminary shape imparted to an upper by the action of wipers and/ or other lasting instrumentalities, and also for the purpose of faciltating subsequent outsole attaching, it has been found desirable to minimize the folds, pleats or bunching inevitably formed in a lasting margin, especially in its toe portion. Such treatment of the margin is likewise recognized as being particularly important in improving the bond between a precemented lasting margin and an insole. Accordingly, having the above object in mind, a feature of this invention comprises the combination with endembracing wipers movable inwardly over an insole on a last and means for causing the wipers, after wiping precoated upper materials inwardly, to retract and then again move inwardly to positions nearer the insole edge than at the end of their first inward wiping movement, of mechanism operating in time relation to the wiper movements for applying pressure to substantially all of that portion of the lasting margin of the upper extending inwardly beyond the wiping edges of the wipers after their repeat inward wiping movement. It is a further feature of the invention to provide, in a lasting machine of the character just described, means for delivering said pressure with an initial impact to overcome resilience in the rimpled margin of the upper, followed by a sustained compacting pressure and wiper dwell that flattens the arcuately extending marginal portion of the lasted upper material while obtaining the superior bond that is desired.

In the illustrative machine the means employed for applying compacting pressure to that portion of the overlasted margin extending inwardly beyond the wiping edges of the wipers comprises a pair of presser members that is articulated from an open to a closed position in a manner similar to the movements of the wipers. Each presser member is also movable lengthwise and heightwise of the shoe and carries an arcuate work-engaging portion which projects toward the shoe bottom from a fiat platelike portion. The arrangement is such that, the wipers having arrived in the closed position in which they firmly press the lasting margin nearer the insole edge, the presser members are advanced farther lengthwise of the shoe relatively to the closed wipers, the arcuate projecting portions thus being carried across the wiping edges of the wipers and closing to form one continuous rib for engaging substantially the entire inner portion of the overlasted margin. At this time in the cycle of operations a ram-like bar is caused to strike the plate-like portions of the pressure members with considerable impact, the marginal upper material ahead of the wiping edges of the wipers thereby being dealt a flattening blow by the abovementioned projecting portions which thereafter are urged to apply a sustained compacting pressure.

In order to enable concerted pressure to be applied, by means of the presser ribs and wipers, on the lasting margin for the desired or required period of time, the

illustrative machine is provided with operator-controlled clutch mechanism providing for three stopping positions during a complete operating cycle. The clutch mechanisms of the machines disclosed in the Roberts patents mentioned above enable an operator to trip the clutch to start a cycle and to trip it again after the first over-wipe of the wipers when he is satisfied that a shoe is being correctly lasted. These two stopping positions are retained, though relatively timed somewhat differently in the cycle of the illustrative machine, as are its other operating instrumentalities, and in addition, provision is made for a time dwell in which the wipers and presser members are permitted jointly to compress the entire overlasted margin. After the initial portion of this dwell during which the above mentioned hammer blow has been struck against the presser members, the ribs of the presser members are forced with sustained pressure against the inner portion of the toe-lasting margin, the operator tripping the clutch a third time to complete the cycle when the cement has had sufiicient time to secure the upper to the insole. It will be understood that a machine embodying the present invention may be driven through any suitable clutch and controlled by starting and stopping mechanism other than that herein disclosed. Moreover, though not herein so disclosed, it will be appreciated that a suitable timing device may be constructed and arranged to trip clutch mechanism automatically after a predetermined minimum time interval of pressure application thus causing the cement lasting machine itself to release the lasted shoe and be reset for the next operating cycle.

The above and other features of the invention, ineluding various novel details of construction and com- Fig. 1 is a view in right-hand side elevation of a machine in which the present invention is embodied; a portion being broken away to show a detail of internal conru t pna,

Big. 2; shows in right-hand'side elevation, on an en: larged'seale as compared with Eig. 1; thewip er'operating rnechanismofgthe machine, this view being in large measure like Big. 4 Off the. Patent No, 2,140,652 above enti ed;

Fig. 3; is a;- view mainly in right-hand side elevation g nx liary. n atesw ..n cj et ne s n 1 9 1 nism for controlling striking pressure to be exerted hereon,

i ji w tt rd t leyation fapprtionof the t l st l esh wnin Pie-.3;

Fig. 5; is an enlargL d detail, partly in section, of oer.- a a t s en lF Fjglfi'isa persp eetiveview, on an enlargedscale, of,

he perat nsmm f. hemach nea p i ione at the arts; yele.

Big] is a perspeetivepfjportions o f, the, clutch mechanisrn qfthe n ra chine, as seen from the rear, and shown Part ally n. F g. v

F ig. 8'-is a view in side,eleyation with portions being shownfin seetion of tlfl e,,cl1 1tch operating mechanism; and

Fjg, 9j is, a section showing onepresser member inoperative relationwiththewipers on the overlasted mar nnfiash e.

Sincethe illustrative cement lasting machine bothin.

positionedbottom upward. Their manner of operation.

relative1y,to .-the; last is fully. set forth in .the abovemen: tionedLettersPatent No. 2,140,652 andis such that-they are, ater,retraction, fora secondtimelowered to press firmly; onthelastingmargin andagain receive a closing movernent to complete the wip ing; operation with their wiping edges not .;so far, from the. edge of ;the insole as at the end of their fi rsnwiping movement Operativeon; the, overwiped lasting 1 margin in time relation. to the. wipers lflisa pair oi auxiliary,p resser members generally; designated 12, (Fig. 6.) hereinafter further de:

scribed, The machine ,also, .coinprises a, frame I 13. supporting a, jaekcarrying ;shaft 14.-(Fig. 1).0n which is mounged anfupwardly .extending casting slidably carry ing, a;,ja.ck post ,18, provided at its upper end with means for -supporting a shoe, The, jack. is ;.swungrearwardlys into a vertieal. position indicatedin Fig. 2- to present .the

shoe, with;it s,toe end in.,predeterminedrelation topthe: wipers 10, and a treadle 20,(lig. 1),is thendepressed:

to eleyate the. post, 18. andthus .carry the. bottom; of the forepart of, the shoe against. a, holddown, (not herein, shown) for determining the position-of the. shoe heightwise, the holddowndetermining a parallel relation be.- tween the, shoe bottom and the, wipers 10 andlater acting, to depress .the shoe. at a certain time inthelasting;

operation; For supporting the toe end OLthe-shoe. under.

the holddown adetachable toe rest 2 2 (Figs Land 9) is provided and a heel end support generally designated;

24 is arrangedto, support .theshoeon the post 18;so that the toe end facewill .contact ;or. be spaced a .predeter-. minedsmall amountfrom a depressible ,toe end gage.-26

ke-the ach ne mor u sd s dtin Le rs atem.. No. 2,140,652, the machine herein shown is provided with;

fingers 28 (Fig. 6) mounted for cooperative clamping action with the wipers 10' in spreading and tensioning the lasting margin of the upper. The movements of these fingers throughout a cycle are substantially as described in United States Letters Patents No. 2,138,308, granted on November 29, 1938, upon another application of W. T. B. Roberts. It willbe understood that in the present machine the fingers 28 are moved, upon withdrawal, from over the wipers, to a-lower position beyond the wipers to afford clearance for operation ofthepresser members 12 on the overwiped lasting margin.

The wipers 10 are respectively mounted onwiper carriers 30 (Fig.2) which aresupported, throughbrackets 32, on a pair of castings 34 movable vertically along rods 38, 38 (only one shown) and on other parallel fixed rods 40, the parts associated primarily-with only one of the wipers being visible in the drawings. For moving the wipers heightwiseof a last, as hitherto-disclosed, the-castings 34 have-their respective lower,ends.connected-.by atlinlc 42,. oneonly. shown) ,to a31eyer,44.-mounted-0n aired 46 and,- connectedyby. a linlc,48:to alevenSOcwhieh carries a roll 52;lying in a-cam track 5.4 formed in a .cam wheel mounted ona nain camshaft 56 -(Eigs. 1 and-2); To. advance, and .retractthe'wipers 10 lengthwise ,of tthelast, the brackets 32: are operated; by-means; of links; 58 through up;- wardly extending ,arms .of a ,lever; 60.. This lever; is. op;- erated, through-a link 62,3bya lever 64' (Fig; 2) having-fol:- lowerconnection; with; a cam (not shown) mounted on. the shaft 56. For; closing, the wipers laterallyof.the;shoe; each of the wiper carriers,30,;h as .connected, to, it;by a; ball joint at'66,,(l=ig. 2) the;forward end of,a rearwardly; extending rod itself connected by ball joint to upwardly,

. extending,arms-.ofiailevery68 which is.connected, through a rod, 7 Onto, 33163181 72operated'; by a cam on the, shaft i 56,. After thC. 'WlP CI'S:h3.,l/C,,W1P, d1116 margin .of'the upper. inwardly, over, the, insole, haveretracted, and then again! advanced and ,closed. partially to wipe the margin inwardly; means-not herein shown, but operatively; connected .toither shaft,5.6;-as hithertozdisclosed jn-athePatent No.-2,l40,652, are actuated and. have connection with the ends of 1 a .fiex-. ible band ;7 Fig. 61) ;to. cause it to. clamp the, upper, to. the;- last around, the; toehexteriorly of 1 the shoe bottom.- As aboye=indicatedg the-.presser members; 12: (corresponding; in-r lativedocation and operation to. thebar of ,taCkCITIlOZ: zle- -,p osit ioning-,- plates designated 283 in. the Patents 2,134,148.) are ;spaced:.abo.ve the wipers 12; and aresadanc d and closed in pathstsimilari to the. paths of :rnove: meutt of the. wipers, .the'advancingrand. closing. movements. beingirnpartedzto-the members 12.1by-the: samemeansimparting corresponding movements; to; the wipers... The.v members ,125 are; respectively. secured -to. .carriers ,:.80 ;that= are supported inaireadily. detachable-manner :on ,a-itablet- 82,;(Figt 6-) whichiissupported ateach side.by. a-.pair.of depending parallel links 84; 85 .pivoted. at .theirnlower ends to. -,the ta,ble. For reasons later explained-the construction. being described differs from that of the last-mentioned. patent in ,that; as -.best: shown: in .Fig. 5; the. lowerendsof the. .forwarddinks, .84. are. respectively threaded to receive. a member.86:having a'slot ,88 extending heightwise.- Pins.

; affixed horizontallyto; thestable. 82irespect-ively extend 1 through the slots 188;and.:afiorda-.;lost motion connection:

between the table and the links 85.;. It will be understood that. ,the P esser members il2zare, opened on closed. laterally. of t the-;;sho.e; as ;.they arermovedvbodily ,lengthwise by thei table 82; The carriers 30: hayeconnected. toathem .byball ,joints, thehforwarduends ofiflink's 92.:which .are;.con

nected at theinrearwardends todependinglevers 94 (Figs: 2 {and- 3). The. levers -94-areimounted:to swingattheir. upper ends aboutav rod-96in a. head. castingof themachine and gare; arranged: .tO; .be connected; at. their lower .ends 1 to.- the,uPPer ends ofithe upwardlyextendingarms of the leveri 68 .WhiChx impart -.to. the wipers .their closing .rnovements.

Thetablc 82. which supportsthecarriers SO jscoupled'to:

the-,fonward-ends ofidinks 98;.w hichiare counectediatt their:

r w rdz n s .1 wondependingsl vers..100nmounted;.on:

the rod 96. For the purpose of moving the members 12 lengthwise of the shoe relatively to the wipers during the second inward wiping movement of the latter, so that arcuate depending ribs 102 respectively projecting from the members 12 are safely carried inwardly across the wiping edges of the wipers as they come to rest, each link 92 and 98 is made in two parts serving in toggle devices. This toggle arrangement is fully described in the Patent No. 2,134,148, it being sufficient for present purposes to note that the relative advance movement of the ribs 102 is accomplished by the straightening of the toggle devices when a lever 104 pivoted on a rod 106 is swung downwardly by a cam on a secondary cam shaft 108 (Figs. 1 and 3), the lever 104 having an arm carrying a roll 110 which lies in the track formed in said cam. The shaft 108 is driven through suitable gearing by the main cam shaft 56.

The respective presser members 12 comprise an arcuate, flat upper portion 112 with which the ribs 102 are integral. In their closed position the members 12 (Fig. 6) have their portions 112 and the ribs 102 in a substantially continuous U-shaped configuration, the ribs 102 having flat undersurfaces adapted to press downwardly on the overwiped inner margin of the upper and being shaped to correspond in curvature with the wiping edges of the adjacent wipers 10. The ribs 102 project downwardly from the plate-like portions 112 an amount only slightly greater than the thickness of the wipers 10. For the purpose of avoiding possible confusion due to similarity in appearance it is observed that Fig. 3 somewhat resembles Fig. 9 of the Patent No. 2,134,148 in that where the bottoms of the tacker arms 257 are shown in that Fig. 9 there is correspondingly shown in Fig. 3 herein the presser ribs designated 102.

Means for applying pressure to the members 12 to cause the ribs 102 to flatten, compact, and secure the inner precemented margin of the upper lying beyond the closed wipers 10 is herein shown as supported by a head casting 114 (Fig. 1) bolted on the upper face of the machine frame 13. The casting 114 has formed in its front face a vertical guideway for a tubular slide 116 which is connected by a pair of links 118 (Figs. 1, 3 and 4) to a forwardly extending bifurcated portion of a lever 120 movable about a transverse shaft 122 by a cam mounted on the shaft 108. The links 84 are pivotally connected at their upper ends to the lower ends of the links 118, and the links 85 are pivotally connected at their upper ends to the slide 116. Thus the table 82 and the members 12 move upwardly and downwardly as well as lengthwise of the shoe. A driver bar 124 (corresponding to, but longer than, the bar designated 267 in the Patent No. 2,134,148) is mounted for vertical sliding movement in the tubular slide 116 and has at its lower end a U-shaped head 126. Springs 128 (Fig. 4) mounted within the tubular slide 116 are arranged at a certain time to impart rapid downward movement to the bar 124 to cause the head 126 to strike the members 12 simultaneously a hammer blow. The driver bar 124 is operatively coupled normally at its upper end to a crosshead 130 which is connected by a pair of links 132 to a bifurcated portion of a forwardly extending lever 134 mounted on a shaft 136 (Figs. 1 and 4) in the head casting and provided with a cam roll arranged to be operated by a cam on the shaft 108. Accordingly, by movement of the lever 134 the crosshead 130 and the bar 124 connected therewith are raised against the resistance of the springs 128 to compress them preparatory to application of downward pressure on the members 12.

By mechanism now to be described, upon upward movement of the crosshead 130 to raise the bar 124, the latter is held with the springs 128 under compression until that time in the machine cycle when the members 12 and the wipers 10 have closed and occupy the relative positions shown in Fig. 9. The coupling between the bar 124 and the crosshead (Figs. 3 and 4) comprises a member 140 movable forwardly and rearwardly on guide rolls 142 on the crosshead. A spring 144 nor mally urges the member 140 forwardly and causes a beveled face 146 thereon to engage an undersurface of a roll 148 on the bar 124. A spring pressed latch 150 pivoted on the member 140 has a hooked forward end which normally engages a plate 152 fastened on the bar 124 and thereby prevents rearward movement of the member 140. The bar 124 is accordingly raised by the upward movement of the crosshead and it is held in raised position with the springs 128 compressed until, during downward movement of the slide 116, the latch 150 is engaged and operated by a latch tripping member 154 so that the member 140 is released to permit it to be moved rearwardly by the roll 148 as the bar 124 is impelled downwardly by the springs 128. The member 154 is threaded to receive a clamping bolt 156 extending through a slot formed in an arm 158 fixedly mounted on gibs 160 (Figs. 1 and 4) which assist in guiding the slide 116. For adjusting the time of release of the bar 124 to downward movement the member 154 is adjusted heightwise by a screw 162 threaded into the arm 158, the head of the screw being partially fitted into a slot in the member 154.

As above indicated, the illustrated machine is started and stopped by clutch mechanism which, in addition to starting a cycle and providing for stopping the machine after the first overwipe of the wipers 10, causes the driver bar 124 to come to rest after a fiat undersurface 164 of the head 126 has engaged the portion 112 with impact and thereafter continues to force the ribs 102 against the inner portion of the lasting margin with pressure. Referring to Fig. 1 the main cam shaft 56 has mounted thereon a clutch operating cam 166 having a peripheral track the underside of which is engaged by a cam roll 168 carried by the forward arm of a lever 170 (Figs. 1 and 7). The latter is pivotally mounted on a pin 172 supported by the frame 13 and has a rearward arm pivotally carrying a trip 174 (Fig. 8) that is urged forwardly by a spring plunger 176. A spring 178 maintains the roll 168 in contact with the cam 166. When in its normal forward position the trip 174 engages a notch formed in the lower end of a slide 180 (Figs. 7 and 8) mounted for vertical movement in a bracket 182 affixed to the frame 13. The slide 180 is urged downwardly by a spring 184 and is retained in the bracket 182 by covers 186, 188 bolted thereon. Rocking of the lever 170 as effected by the cam 166 is accordingly effective, through the trip 174, to move the slide 180 against resistance of the spring 184 and thereby rock a three-armed lever 190 pivotally supported by the frame 13, the lever carrying a block 191 accommodated by a horizontal slideway formed in the slide 180. Pivotal movement of the lever 190 controls operation of the machine by means comprising conventional clutch and brake mechanism mounted on a power shaft 192 (Fig. 1). By suitable inter- -mediate gearing (not shown) the shaft 192 is arranged to drive the main cam shaft 56.

The power shaft 192' is housed by a portion of the frame 13 as indicated in Fig. 7 and carries at one end a brake drum 194. When rocked in a clockwise direction (as viewed in Fig. 7) by any one of three high points designated A, B and C on the cam 166 (Fig. 1), the lever 190 acts through a rod 196 to apply a brake strap 198 to the drum 194 and hence a brake to the drive shaft 192. The lever 190 also acts at this time axially to shift a link 200 to release a pulley 202 from frictional driving relation with a clutch 204 mounted on the other end of the power shaft 192 and operation of the machine is thus quickly stopped. The pulley 202 is belt driven and largely covered by a guard 206, and the shaft 192 may be turned over by a hand wheel 208 (Fig. 1) if desired. In order to release the brake mechanism and restore the pulley and clutch to driving relation, the trip 174 is moved rearwardly (i. e. moved clockwise as seen in Fig. 8) against the resistance of the plunger 176 by means of pressure exerted on a knee pad 210 (Fig. 1) carried on the toward end of a rod 212. The latter is connected to one end of a lever 214 aflixed to a shaft 216 mounted in bearing brackets secured to the frame 13 and the bracket 182. The other end of the shaft 216 carries a lever 218 (Fig. 8) which pivotally supports an arm 220 engageable endwise with the trip 174. Thus, in starting the machine the operator moves the pad 210 so that the trip 174 is displaced from the notch in the slide 180 by the arm 220 and the slide is thereupon moved downwardly under the influence of the spring 184, the lever 190 consequently being effective to release the brake strap 198 from the drum 194 and finally shift the clutch 204 into driving relation with the pulley 202. A spring plunger 222 mounted in the lever 218 bears on the arm 220 allowing it to yield upon being engaged by the slide 180. Upon releasing the pad 210 a return spring 224 (Fig. 1) mounted on the rod 212 is effective to retract it and the arm 220. The power shaft 192 drives the main cam shaft 56 until the next low portion of the peripheral track of the cam 166 allows the roll 168 to rise under the influence of the spring 178. When the roll 168 is thus raised, the trip 174, due to the plunger 176, is again positioned for engagement with the notch on the slide 180 and will raise this slide to stop the machine when the next high point of the cam 166 depresses the roll 168. Repeat operation of the pad 210 restarts the machine after each high point A, B or C has brought the machine to a stop. in the illustrative arrangement the point A (at approximately 184") on the cam 166 is eflective automatically to stop the machine when the wipers 10 have fully closed to complete their first inward wiping movement over the lasting margin; the point B (at approximately 260) is effective to stop the machine with the wipers 10 again partially advanced and closed and now pressing on the outer portion of the lasting margin while the driver bar 124 continues to exert downward pressure on the ribs 102 as they bear on the more inward portions of the lasting margin; the point C (at or 360) stops the machine at the end of the cycle, the shoe then being released from the wipers and presser members 12 which have returned to their starting positions along with the other operating instrumentalities.

Operation of the machine will now be briefly summarized. The shoe being in the operating position shown in Fig. 2 and assuming the operator is satisfied with the lasting condition after the wipers have initially .advanced and fully closed to wipe the lasting margin of the upper inwardly over the to portionof the insole I (Fig. 9) he momentarily presses the pad 210 .a :second time to cause the power :shaft 192 to be driven through the clutch 204 and .thereby revolves the .cam shaft 56 for that portion of the cycle in which the periphery of the cam 166 from A to B contacts the roll .168. vIn this portion of the cycle the wipers 10 complete theirretractive movement and then again advance to positions in which the wiping edges of the wipers are nearer the edge of the insole than at the termination of their first inward wiping .movement. This .repeatinward Wiping and closing movement of the wipers 10 is-effected when they have been lowered to cause them again to apply :firm pressure on the ,precemented margin of the upper. Thepresser members 12, selected to complement the curvature of the pair of wipers being employed, aremoved lengthwise of the shoe and relatively to the wipers 10 by the toggle devices comprising the two-part links 92, 98and the rigs 102accorclingly slide over the wipers toinward positions for engagement with that portion of .the margin lying beyond the wiper edges as seen in Fig. 9. The slots 88 (Fig. 5) permit the table 82 and hence the carriers and presser members 12 to move vertically somewhat relatively to the links 84. Thus the links 84 will descend slightly after the ribs 102 have engaged the wipers 10, and the slots 88 will allow the members 12 to be depressed relatively to the links 84 so that the ribs 102 may thereafter compress the inner portion of the margin against the insole I. Before the roll 168 is depressed at B to stop the machine the cam shaft 108 has acted via the lever and the links 118 to lower the slide 116 and thus the presser members 12 onto the insole. As the slide 116 is moved downwardly the latch tripping member 154 operates on the latch to release the compressed springs 128. The driving bar 124 is consequently forcibly impelled downward, its head 126 striking the portions 112 just above the ribs 102 and causing the latter to press the precemented inner marginal portions of the upper against the insole. The ribs 102 thus act to flatten those inner marginal portions likely to have been more rumpled and pleated during the lasting operation and will, as the machine is automatically stopped by the point B of the cam 16.6, continue under the influence of the springs 128 to press and compact such marginal portions thereby permitting the wipers 10 independently to dwell with more effective pressure on the lasting margin nearer the insole edge.

The action of the two independently acting pressing means, i. e., of the ribs and the wipers, succeeds during the dwell in holding the entire precemented and overlasted margin flatter and in closer relation to the insole while the cement is setting than if wipers alone were to be suddenly forced against an entire overwiped margin at the toe end. While it is true that that portion of the lasting margin of the upper operated von by the ribs may later be trimmed away as surplus, nevertheless on those critical marginal portions of the upper which are to remain in the finished shoe near the edge of the shoe bottom, the wipers can, because of the compacting effected .by the ribs, concentrate their pressure and obtain a smoothly lasted toe. As soon as the shoe has remained under pressure of the wipers 10 .and the ribs 102 for the time required properly to secure the lasting margin .to the insole l, the pad 210 will again be moved to start the machine and cause the cam 16.6 to revolve from point B to point C relatively to the roll 168. In this final portion of the operating cycle the lasted shoe is released from the machine .and the operating instrumentalities are returned to theirrespective starting positions.

Having thus described our invention, what we claim as .new and desire ,to secure by Letters Patent of the United States is:

1. In a lasting machine having wipers for embracing the upper of a shoe about ,an end ,of a last and for WI P ing, retracting, and then partially .rewiping the cemented marginal portion of the .upper inwardly over an insole on the last while applying substantial pressure to :the upper against the insole, presser members constructed and arranged to be moved heightwise and lengthwise .of the shoe, power means for articulating the wipers and presser members widthwise and lengthwise ;of the shoe bottom to position said members in contiguous relation to the wiping ,edges'of the wipers when the latter assume positions at the end of their pressural rewiping movement, and a spring-impelled hammer for forcing the presser members when .so positioned .into compacting engagement with that portion of the margin of the upper lying inwardly beyond the wiping .edges of the wipers.

2. In a lasting machine of the type having wipers for embracing the upper of .a shoe .about the .toe end .of a last and for .wiping .and then partially rewiping the cemented marginal portion .of the upper inwardly over an insole on the last, power means for so moving the wipers, means for causing said wipers to dwell after their rewiping movement in compacting engagement with that portion of the cemented margin of the upper adjacent to the insole edge, and pressing means for independently compacting that portion of the cemented lasting margin extending inwardly beyond the wiper edges, said pressing means being arranged for movement toward operative position by said power means while the latter is eifecting the rewiping movement of said wipers.

References Cited in the file of this patent UNITED STATES PATENTS Jorgensen July 25, 1922 Jorgensen July 5, 1927 Le Rette Dec. 17, 1935 Roberts Dec. 20, 1938 FOREIGN PATENTS France Aug. 22, 1936

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