US2411827A

US2411827A - Lasting machine

Info

Publication number: US2411827A
Application number: US560382A
Authority: US
Inventors: Fossa Joseph
Original assignee: United Shoe Machinery Corp
Current assignee: United Shoe Machinery Corp
Priority date: 1944-10-26
Filing date: 1944-10-26
Publication date: 1946-11-26
Anticipated expiration: 1963-11-26

Description

Nov. 26, 1946- J. FossA LASTING lMACHINE Filed Oct. 26, 1944 4 Sheets-Sheet 2 4 fnvenar Joseph Foscz Blf ZS ofney SQ m9 NS Nov. 26, 1946.. J. FossA y 2,411,827

. LASTING MACHINE Filed Oct. 26, 1944 4-SheetS-Sheet 5 Y 24e 3U ff L 294 [nu enlor ....v. a l Jose/Dh FOSS@ A QU Nov. 26,

OSSA

ILASTING MACHINE Filed ot. 26,' 1944 4 Sheets-Sheet 4 Patentedk Nov. 26, 1 946 lLAs'riNG MACHINE Joseph Fossa, Salem, Mass., assignor to United Shoe Machinery Corporation, Flemington, N. J., a corporation of New Jersey Y Application october 26, 1944,` seriaiNQ. 560,382

o 2 5 Claims. (Cl. 12-1) This invention relates to shoe machines and particularly to machines for lasting the uppers of shoes or periorming analogous operations on other shoe parts. f

In lasting, as this term is understood in the rade, the upper stock is tensioned heightwise of the last, its lasting margin is drawn over, or otherwise worked into. overlasted position, onto the bottom of the shoe, and the overlasted margin is secured in lasted position, as by cement or metallic fastenings, to a shoe-bottom member such, for example, as van insole. Recently there has been introduced to the trade'a type of shoe sometimes called a slip-in lasted shoe, the manufacture of which, whileit does notinvolve the conventional lasting operation, outlined above, does employ a procedure closely analogous thereto, namely, the operation of tensioninga plat,- form cover heightwise of the-shoe, working the margin of the cover stockover onto a platform which serves as a shoe bottom member, and securing, as bycement, this overdrawn margin to the platform.

It is an object of this invention to provide av novel and improved machine for performing either the conventional lasting operation or such an analogous operation as the one justmentioned.. Accordingly, in this specification, as well 2 which affords protection against displacement of the'lasted stock or distortion of the shoebcttom part during the lasting operation. i

With these and otherobjects in view,the herein illustrated machine is, in accordance with features of the invention, provided with a rapidly reciprocating,r gripper for seizing the lasting margin of the' stock to ,bel lasted, in diiierent o locations successively along the edge of the shoe bottom, and for tensioning it heightwise of the shoe by pulling itinwardly from the edge of the shoe bottom in a direction substantially parallel to the `shoe bottom and over a protective shield 'portion of a shoe bottom rest; a presser-feed asin theY claims, the term lasting is used in a somewhat broadened sense and is intended to include not only the conventional lasting operation but also other analogous operations, while the terms lasting Vmargin and overlasted margin are intended to include that portion of a platform cover, or other part, which corresponds to the likeportion ofthe upper stock of a conventional shoe.

More particularly, it is an object of this inven-` tion to` provide `an vimproved lasting machine thatis very' speedy in operation, .efficient in its action, and especially adapted vfor performing` lasting operations in which the securing of the? overlasted margin of the Vstock to the bottom of f the shoe is effected by means of an adhesive, and I where lthe lasting operation proceeds step bystep` Without interruption along the .peripheral `edge of the shoe bottom. It is, hOWever, to be understood that in certain aspects the invention is of broaderV scope and that features vthereof have 4utility in other types of lasting.

Lt is also an object of this invention to provide an improved lasting machine in the operation of which the lastiner operation progresses auto'- maticall-y along the peripheral ,edge of the shoe bottoni by small, but unite, increments, and

member, operating in time relationl to the gripper, for pressing and pounding the overdrawn lasting margin of the stock into adhering relation with the shoe-bottom part and also movable, thereafter, in a direction to feed the shoe; and a feed-,retaining member for preventing retrograde movement of the shoe `and forretaining previ.-

ously overlasted' stock from being displaced by thenext succeeding action of the gripper.

For preventing the adhesively coated lasting mergn of the stock from sticking ,to the gripper jaw which engagesit, the machine,--in accordance with a further feature of the invention, is provided with gripper-operating means arranged to eiectseparation of thegripper jaws by individual movements thereof in opposite directions away from kthe said margin. In, the illustrated machine the gripper mechanism comprises a" power-reciprocated rear gripper jaw, a front Ajaw associated therewith for movement relative thereto, resilient lmeans for' closing the jaws, and

means controlling the position of the front jaw so that the jaws close on the stock, move together forwardly lover the shoe bottom, 'and nally separate to release the stock, the controlling means being arranged to continue the forward movement of the front jaw, as the vrear jaw moves rearwardly, thus to eiect separation of the` jaws in the manner setforth. f v

As stated abovethe.stock is tensioned over the protectiveshield portion of a bottom rest, and

vto 4facilitate theintroduction of work to the ,ma-

chine ,this bottomk rest is, in accordance with a feature of the invention, movable by spring meansy to `an inoperative position, operator-controlledy means being provided *for returningthe bottom restfgto operative -position, against the action of thejspring means, in which its shield portion will engagethe bottom of ,a shoe heldthereagainst, by

the operator, closel to its marginal edge.Y This spring means is also adapted to hold the front 3 gripper jaw in its forward position and away from the reciprocating rear jaw, thus further facilitating the insertion of the lasting margin of the stock between the jaws.

The presser-feed member` of the illustrated niachine, as above mentioned, acts as a presser, or hammer, to press, or pound, the overlasted margin of the stock into adhering relation to the bottoni of the shoe, and also as a feed-foot to move the shoe bodily in a feeding direction. To facilitate this feeding action this presser-feed-foot is, in accordance with another feature of the invention, constructed and arranged to move the shoe downwardly and away from the bottom rest, thus avoiding any tendency for the adhesively coated shoe bottom to stick to the bottom rest or to drag thereon. This presser-feed-foot descends substantially vertically onto the overlasted margin close to the point of action of the grip-per, and its feeding increment is so small that any fullness of the stock between the successive points of action of the presser-feed-foot is nicely folded into small and unobjectionable plaits, a feature of especial importance where the lasting operation proceeds around sharply curved portions of a shoe, as at the toe and heel ends, and adjacent to the ball. The effectiveness of the presser-feet-foot to effect adherence of the stock, and to feed the shoe, and that of the feed-retainer to prevent retrograde movement of the shoe, is enhanced by coniining their zones of operations to narrow areas and by providing them with sharpened teeth.

These and other features of the invention will become apparent in the following detailed description of the embodiment thereof shown in the accompanying drawings and will be pointed out in the claims.

In the drawings,

Fig. 1 is a view in side elevation of a machine embodying the features of the present invention, certain portions being broken away to show the interior construction;

Fig. la is a detailview of one of the operating elements of the machine;

Fig. 2 is a plan view of the machine shown in Fig. 1, the top portion of the head being removed to show the mechanism contained therein;

Fig. 3 is a view in front elevation of a part of the machine shown in Fig. l and showing the operating instrumentalities;

Fig. 4 is a view in side elevation of the operating instrumentalities shown in Fig. 3;

Figs. 5 and 6 are front and side elevation views, respectively, of the operating instrumentalities shown in Fig. 4 but with these instrumentalities in diierent operating positions;

Fig. 7 is a View in side elevation of the front part of the machine with the operating instrumentalities in position to receive a 'shoe and with certain parts omitted; and

Fig. 8 is a Timing Chart.

Referring to the drawings, the operating instrumentalities of the illustrated machine comprise a gripper, including a rear gripper jaw I0 and a front gripper jaw l2, for seizing the lasting margin of the stock and applying lasting stress thereto; a, shoe bottom rest and lasting shield i4 for engaging and positioning heightwise,the bottom of'a shoe and over which thev lasting margin is drawn by the stress applied thereto by theY gripper; a presser-feed member I6 for pressing the tensioned lasting margin down onto the bottom of the shoe and fo-r exerting a feeding force on theshoe; a feed-retaining member I8 for holding the shoe against retrograde movement 4 during the return, or back-feeding, movement of the presser-feed-foot; and an edge gage roll 2Q for positioning the shoe laterally. These instrumentalities are all mounted on, and operated by mechanism contained within, a hollow head construction 22 comprising a lower portion 24 and a removable top part 25 secured thereto by means of

cap screws

28, 28.

The rear gripper jaw l!) is attached, by means of a clamping bolt 39, to the forward end of a carrier 32 which is supported by two

rocker arms

34, 36 journaled respectively on fixed cross shafts 38 and 4] that extend across the lower portion 24 of the head 22. This carrier is pivotally secured to these rocker arms by means of

studs

42, 44 and is movable forwardly and rearwardly of the machine by means of a third rocker arm 46 that extends upwardly from a hub member 48 common to it and to the rocker arm S6. The

rocker arms

34 and 36, together with that part of the carrier 32 which extends between said arms, constitute a parallel motion linkage so that the carrier always remains horizontal during its forward and rearward movements.

For oscillating the rocker arm 46, to impart the aforementioned movements to the carrier 32, there is provided an eccentric 50 formed integrally with a main drive shaft 52V that extends across the lower portion 24 of the head and which is journaled in

anti-friction bearings

54, 56 mounted in said lower head portion. An end of this shaft projects beyond one side of the head, see Fig. 2, and on ythis end there is secured a drive pulley 58 which is connected by means of a belt, not shown, to any suitable source of power such as, for example, an electric motor. Surrounding the eccentric 5G there is an eccentric strap 69 from which extends an arm 62. This arm is connected by means of a ball joint, including a ball $4, to a link 56 and by a ball jointl including a ball G8, to a link 1G, a spring clip l2 serving to hold the

links

66 and 10 and the arm 62 in assembled position on the balls S4 and 68. The link 1B is connected by a ball joint, comprising a ball l'l and a spring clip 13, to the upper end of one arm 'i4 of a bell crank having a second arm 16, located on the outside of the head portion 24 and provided with an operating handle in which is positioned a springlocking plunger 82. This locking plunger is adapted to be positioned selectively in one of several recesses 84, formed in an arcuately shaped raised portion B on the head, see Fig. 2, thus to vary the length 0f the toggle formed by the link lil and the arm 14 for a purpose to be explained below. The link 66 is connected to the rocker arm 4E by means of a ball joint including a ball 88 and a spring clip 90. As the main shaft 52 and eccentric 5D are rotated the link 10 will be oscillated about the ball joint 'H and this oscillating movement of the link 19 will be transmitted to the arm 4B by the link 66, thus causing the carrier 32, together with the inner gripper jaw lo which is attached thereto, to be reciprocated forwardly and rearwardly of the machine. By varying the length of the toggle formed by the link 10 and the arm 14, in the manner pointed out above, the extent of the forward movement of the carrier and of the rear gripper jaw lil may be varied. v v

The front gripper jaw l2 is secured, by means of a clamp nut |03 and washer Iiil, on the outer end of an elongated rod |02 which is slidably mounted in bearing bores |04, |06 formed in bosses |08, H0 on the carrier 32. The jaw I2 l the lever |36 and its roll llltothe position'shown in Fig. 1 where it will again engagey the arcuate partli ofthecam |23 and now so position rod the topend of Ya-can'l lever I I which -is pivotally mounted, between its opposite ends, von a stud IIS that is carried in a'boss I2@ formed integrally on the upperside of a centrally located and'lonlgitudinally extending' web portion f' |22 of the lowerhead portion 2d. Therad |33 is heldin alinement with rod |02 by means of a guide bore |05 formed in an upstanding yiiange member |01 that is secured to the top of the web portion |22 by screws |99. The lower end of :the cam lever H6 is provided withY a cam surface |23 comprising an arcuate part |2liandan angulanvor` eccentric, part |26. This lever is* continuously urged to swing in a clockwisedirection to move the rod |23 rearwardly, to thev right,-'-Figr. 1,.by.means of a coil spring |28, connected between an eye inthelever and avpost v|32 mounted-'cn the head portion 24, to ra position determined by the engagement of a part of the cam surface |23- with afroller |34 carried on the cuter end of a lever |36l which has a hub`|3 'journaled on a shaft |33supported in ears Ii, llion the head portion 2e. The lever |33 is oscillated, to present the roll |34- tothe different parts |22 'and |26 of the cam surface |23 on lever I, by means of the eccentric 5S vwhich carries a-.second strap |44 having anarm |26 that is connectedto the lever |36 by means of a ball joint comprising a ball |41 and a spring clip |48.

The rod |62 is urged rearwardly of the machine by means of a coil spring |53 that extends'between the upper end of Vthe front gripper jaw I2 and an arm |52x`se`cured to ashaft'` |54 that is Ajournaled in the top part 2S of the head. Also secured to the shaft ist, on the outside of the'upper head part 23, is an'arrn'l having 'a spring'- lockingfpl'unger |553 which is adapted to be positioned infone of several recesses |33 formed in an` arcuate boss |52 thus to vary the tension of the spring |58. In the position of the parts as shownY in Fig. l, the rear gripper jaw l@ is inl its extremeV left as viewed in n g. l, by the eccentric 5) acting through arm e2, link 65 and rocker arm 56. At the same time lever ISIiwillbe swung inv a clockwise direction,'eccentricr 5! and arm yIll-6, thus moving the roll .I S up over the angular, or eccentric, part |25 of the Acam|23 and permitting spring |22 to's'wing lever I |55 in a clockwise direction, and tomove rod |533 to the right, andspring VI5!) to movethe rod |22, together with the front gripper jaw, 52,rearwardly of the machinato theright, Fig; l. These Ymovements of the two gripe per jaws continue during a quarter'turn-of the' shaft 52 and until the rearand front jaws meet,l whereupon the front vjaw, I2 will then be' moved forwardly, tothe left, Fig. l, against the action of springV |56, by the continued forward movement Vl to prevent rearward movement of the front gripper jaw as the carrier 32 and the rear jaw are returned'to their` positions as shown in Fig. l during the next half turn of the shaft 52 which completes the cycle. Duringr this'last lhalf turn the roller [35s travels on the arcuate surface |25 of the cam |23, which has its center about the axis of the shaft |38. The cam surface |26 is so shaped that the gripper jaws will come together, to closelon the lasting margin of the upper of a shoe being lasted, just a slight distanceinwardly from theedge of the shoe when` it is being held against the edge gage roll4 20, and asrthe rear jaw forces the front jaw forwardly'of the machine the upper stock thus grippedrlrmly between thefrods |32 and V|33 will separate slightly, thus avoiding any chance of the rod `If'pushng rod |02 to the left and relaXing'vthe grip of the jaws lil. and |12 on the stock. Preferably, and as shown,

, thecam part |22 is so constructed that the arm I3 is given a slight additionalangular movement `in a counterclockwise direction just as the rear gripper jaw starts its rearward movement and enough to move the front gripper jaw away from thezstock which has just been pulled. This additional forward movement'o'f the gripper jaw I2 assures that the adhesive coated'stock will not stick to the jaw.

v As the stock is thus pulled inwardly over,'and inA a direction substantially parallel to, the bottom of the shoe', it is drawn over the inner end of lthe bottom rest I4, and also over in contact with a portion |73 thereof which is positioned'directly below and inralinement with the line of action ofthe gripper so sas te constitute a lasting shield' or, abutment. Thus the horizontally directed stress applied by the gripper is transposed into a vertical 'pull for tensioning the lstock in a directionl perpendicular to the shoe bottom and, at the same time,distortion vof the shoe bottom member prevented.. The bottom rest and lasting shield It is mounted for movement outwardly away from t the edge gage roll 26, for the purpose of facilitating'thezxbeginning of a lasting o-peration,fin the following manner. The bottom rest andlasting shield' I4 issecured by means of'bolts |12 to an arm 1M. which entendsr downwardlyifromfahub f member H3 that is journaled on a shaft lili Vsupported in a forwardly'projecting part of the up# perl head portion 26. Also extending fromfthis same hub member is an arm '|89 havinga loi--v furcated end |82 embracing a sliding block |34 -infwhich is journaled an eccentric nportion IBIS of aishaft |88 that is "also journaled in' the head portion V23,',ligs- 1, 3 and '7. The shaft '|88 extends beyond-one sideof the head portion 26,

see Fig. 3; and on this projecting end of the shaftV there is secured a pinion |9awhich meshes with a gear quadrant |32 havingA a hub 'wdthat is journaled-on the shaft |54 which, a's'pointedout above, extends across vthe top part-of the upper head1 portion 2,6. Also extending from the yhub fall areftwof otherarms |98 and 2te.; Thearm of the carrier-32 and rear jaw-I9, for thenextI la is connected by means of a "rod 292' to a trea dle, not shown, while extending between the arm 289 'and alpin 2M; mounted in the head portion 26j, is a'tension spring 266 which tends to". hold ther armf200 against astop pin 208 with th'ebottom rest var'id'lasting shield M moved outwardly'and to the left from the position shown in Fig. 1when the treadle is released, to the position shown in Fig. '7. Depression of the treadle, however, swings the arm .200 in a clockwise direction and to the position shown in Fig. l, against a stop pin 2I0, thus moving the bottom rest and lasting shield I4 into the operative position shown in this figure.

.Also extending from the hub |16 is an arm 2 I2 which is connected by means of a link 2I4 to an arm 2I6 which extends downwardly from a hub 2I8 which, like hub |94, is freely rotatable upon the shaft |54. This arm has at its lower end an oifset boss 220 which, when the treadle is released, bears against a collar 222 on the rod |32 thus to hold the front gripper jaw I2 in its forward position. Accordingly, until the treadle is depressed and the bottom rest and lasting shield I4 moved into operative position, the rear gripper jaw I merely reciprocates idly without engaging the front gripper `j-aw or exerting any pulling action on the stock. As will be seen from Fig. 7, when the outer jaw is thus held in its outermost position by the boss 220 the rods |02 and |03 are separated a small amount.

The stock which has been tensioned and drawn .s

inwardly over the shoe bottom by the gripper in the manner above explained is pressed firmly against the bottom of the shoe, and into lasted position thereon, just as it is released by the gripper, by means of the presser-feed-member, or presser-feed-foot, I6, which thereafter, and while in engagement with the stock, is moved laterally to feed the shoe. This presser-feed-foot I6 is adjustably secured by a screw 240 to the outer end of a lever 242 which is pivotally mounted by means of a stud 24| on an upwardly extending arm 244 formed integrally with a shaft 246 that is journaled in an elongated bushing 248 mounted in a bore 25E! in the web portion |22. The lever 242 is oscillated, in time relation to the operation of the grippers, to move the presser-f feed-foot I6 against the stock, by means of an eccentric 252, carried by the shaft 52,v and the shaft 246 is oscillated, to move the presser-feedfoot back and forth in a direction extending lengthwise of the shoe, by means of an angle crank 254 also carried by the shaft 52, see Fig. la..` To augment its pressing action and to insure against slippage on the stock, the presserfeed-foot I6 is formed as a narrow blade-like element and is provided with a series of sharpened teeth 255, see Figs. l, 4, 6 and '1.

Surrounding the eccentric 252 is a strap 256 from which extends anarm 258 which is connected, by means of a ball joint comprising a ball of the housing portion 26, see Fig. 2. .Also extending from the hub 266 is an arm 210 and connected to the outer end of `this arm by a ball joint comprising a ball 212 and a spring clip 214 is a link 216 the opposite end of which is connected, by a ball joint comprising a ball 218 and a spring clip 280, to one end of the lever 242.

In the position of the parts as shown in Fig. 1, the presser-feed-foot I6 is in its lowermost position and has just completed a feed stro-ke. During the following half turn, which completes the cycle, the arm 210 will swing in a counterclockwise direction, considerably beyond the deadcenter position shown, and so as to swing the lever 242 in a clockwise direction, Fig. Land thus elevate the presser-feed-foot I6 away from the work. The action of the angle crank 254 is sorelated to that of the eccentric 252 that the shaft 246 is rotated in a direction to move the presser-feed-foot in a lengthwise direction and away from the lasting shield I4, to the left in Fig. 3, during the time that the presser-feed-foot is down against the work, and to return,.or back feed, the presserfeed-foot, movement to the right in Fig. 3, while the presser-feed-foot is elevated away from the work. The presser-feed-foot I6 is preferably so arranged that in moving downwardly against the shoe it tends, momentarily, to push the shoe slightly away from the bottom rest I4, or at least -appreciably to reduce the pressure of the shoe bottom against the bottom rest, Vthus reducing any tendency of the bottom rest to stick to the bottom of the shoe, see Figs. 3, 4, 5 and 6. The angle crank 254 operates in a block 253that is embraced by an

elongated yoke member

2,82, see Fig, la, which is secured to the shaft 246 by means of a set screw 284, see Fig, 2. The hub member 265 is held on the shaft 268 by means of an upstanding piece of flat stock 286 which is mounted on a reduced end of the shaft 48 and held against a boss 288 on the web portion |22 by means of a nut 290.

Theshoe is held against retrograde movement during the return, or back-feeding, movement of the presser-feed-foot I6, and lifting of the stock by the next succeeding pulling action of the gripper is prevented, by the feed-retaining member i8.' The member I8 is secured by means of a bolt 202 to the outer end of an arm 284 which is formed integrally with a hub 296, journaled `on a shaft 298 mounted in the head portion 24. Also extending from the hub 236 are two other arms 380 and 302, the former of which extends upwardly to receive a tension spring 304, stretched betweenit and an anchor pin 306 carried by the upper Vhead portion 26, see Fig. 1, while the latter arm extends downwardly and rearwardly and isY formed with a cam track 308, having an arcuate part 301 and an eccentric part 309, over which travels a cam roller 3I0. The cam roller 3|0 isrjournaled on a stud SI2 mounted in an arm 3|4 which extends radially from the hub member 266. IThe cam track 368 is so shaped that as the hub 266 is oscillated, by the eccentric 252, link 285 and arm 264, the feed-retaining member I8 will be successively urged toward the shoe bottom, by the spring 334, held in this position for a` half turn of the main shaft and while roller 3|0` rides on the arcuate part 381, and raised therefrom by the roll 3I0 acting against the eccentric part 309 of cam surface 308. These movements of the feed-retaining member are so timed that it comes down against the overlasted stock just as the presser-feed-foot I6 completes a feeding movement, remains down on the stock, to prevent retrograde movement of the shoe and lifting of the overlasted stock by the gripper, while the presser-feed-foot is back feeding and during the` next closing and pulling action of the gripper, and then is lifted away from the shoe bottom just as the -presser-feed-foot I6 begins its next succeeding feeding movement. To augment its holding and pressing action the feed-retaining member is formed as a narrow blade-like element and is provided with a series of sharpened teeth 3I5 that are exactly similar to the teeth 225 on the presser-feed-foot I6.

The several operating elements which are contained within the hollow head construction 22 are Ylubricated by means of a splash feed system comprising a pair of paddles 480 which are secured to the hub |31 of the lever arm |36 and which'asr this hub is,` rapidly oscillated by thel eccentric 50, dip into -a body of oil contained' within the lower head portion 24 and throw oil upwardly and forwardly within the closed head construction. To prevent any oil from passing out through an aperture Mit, which is formed in a frontr cover plate M2, through which the several operating elements project, a baille plate :M4 :is positioned as shown inFig. vl and secured to the top head part 26. The edge gage rollio ismounted on a stud Iii carried by a bracket dISwhich is secured to the cover plate I 2.

-The individual functions of each of the se eral operating instrumentalities having been pointed out above, the manner in ivhich'these separate actions occur vand'how they are combined to tension theY lasting margin of the upper of a shoe, or equivalent shoe part, such as, for example, the lasting margin of the platform cover C of a slip-in-lasted shoe, comprising anupper U and sock lining S mounted'on Va last L and having a platform P; draw it in over andY press it down onto the vbottoni of the shoe; and `effect an automatic feeding of theV shoe, will now be explained. vThe Vshoe is presented to themachine while the treadle is released and with the bottom rest and lasting shield I4 in its inoperative position as shown in Fig. 7, the edge of the shoe being placed against the edge gage roll 2G, the bottom of the shoe brought up against the lower face of the shield EA', and the las-ting margin of the stock C introduced between the rear and front gripper' jaws il) and i2, the latter being readily accomplished, since at this time the front gripper jaw I2 is held in its forward position by the engagement of the boss 225!- with the collar 222 on the rodv IElZ which'carries this gripperjaw, and the shield Il! being out of the way. Depression of the treadle, not shown, will swing'ithe bottom rest and lasting shield lil into operative position, see Figs. 1, 3 and 6, and the arm rZIB in a counterclocltwise direction to move the boss 22! away from the lcollar '222, thusfr'eeing Vthe gripper jaw I2 for rearward movement by the spring 'HiB-under thecontrol ofthe rod .i533 and cam tracks |24 and Ifon Vthe lever II 5, and rendering the gripper operative -to .take holdv of the upper stock.

Referring to the timing ichart, Fig; 8, and beginning at station i thereon, in which position of the parts the presser-feed-foot It, now in its lowermost position and` against the shoe bottom, has justcompleted its feed stroke; Ythe front gripper jaw i2 is in Vits 'forward position; the rear gripper jaw Iii is in its extreme rearward posi` f tion; and the feed-retaining linger i3 is its lowermost position, see Figs. 1, 3 and 4; a' complete cycle of operations takes place in the following manner: During the rst quarter turn of the main shaft '52, station I to station 2 on Timing Chart, the rear gripper jaw I!! moves forwardly and the front gripper jaw I2 moves rearwardly, these twogripper jaws .eventually clos-Y ing on the cover stock C adjacent to and just a short distance inwardly over the shoe bottom from the edge of the platform P; the presser-feed-foot I6 moves upwardly and away from the shoe as. its return, or back-feeding, movement,- to the right, Fig. 3, begins, while the feed-retaining member I8 remains down against the bottomof the shoe. Now, and dur-ing the next quarter turn of the main shaft 52, station 2 to station 3, the, gripper jaws Iii. and, I2 move forwardly tou get-her to draw the lasting margin C of the platform cover inwardly, from the edge of theplatf,V

form P, over in contact lwith the inner end I'III of the bottom rest and shieldy Iii to tension the cover heightwise and toy draw it inwardly over the shoe bottom; the presser-feed-foot I6 completes its back-feeding movement and comes down on the tensioned and overdrawn cover stock adjacent to the gripper, see Figs. 5 and 6, and station 3 on the Timing Chartlig. 8. The gripper jaws I il andv I 2 now start to separate, thev rear jaw -I being moved 'rearwardly by they eccentric whilethe front jaw i2 is moved stillr further forward rand is held in this forward position by the camV track E24 on the lever IIS, thepresser-AV feed-foot 'I6 is held down, to press the tensioned and overdrawn upper stock C against the.v shoe bottom, and moved laterally, tothe left, Fig. 5, to feed the shoe, so that at the end of the next' quarterturn oi the main shaft 52, station 4 of the Timing Chart is reached. At this time'in the cycle, the gripper jaws have opened, presserfeed-foot I6 is down on the overlastedstock, and the feed-retaining member is still up and out of engagement with the cverlasted stock.Y During the next and final quarter turn of the shaft 52,

which completesthe cycle at station I onv the Timing Chart, the rear gripper jaw It?, finishes its rearward movement while the frontgripper jaw I2 is still held forward by cam part |24,

.the presser-feed-foot I 6 completes its feeding stroke, and the feed-retaining member -IS moves downwardly toward the bottom of the shoe and into engagement with the overlasted marginiof the stock C. f

rlihe bottom surface of the platform P adjacent,A

to its marginal edge and the lasting margin of the cover .C .are both coated with a suitable ad-V hesive so that the tensioned and overdrawn lasting margin of the coverC is caused to adhere to' the shoe bottom by the pressure applied ythereto by the presser-feed-foot It, This pressure is, as will be observed from the Timing Chart, Fig. .8.' maintained for a halfturn of the shaft 52,'stap tion 3 tostation I, and is supplemented for the next half cycle, station I to station 3, by pressure applied Vat a closely adjacent point by the feedretaining member i8. The pressureA applied A'by thefeed-retaining member also prevents-stock which has been previously overdrawn and stuckl down in lasted position by the pressure-feed-foot I6 from being lifted up or loosened by the rear,

, gripper. Due to the speed at whichthe machine is operated the presser-feedfoct i5 also has a l'iamnler` action since it strikes the overlasted upper ajsmart blow whenit descends vagainst it.'

This action facilitates the adherence of the overlasted stock, particularly when pressure-responsive cement is being used. By causing the gripper to draw the stock inwardly and over in contact with the yinner end lli] of the bottom rest and shield ld distortion of the edge of the relatively soft vplatform member P is avoided, While 'at the Sametime a strong heightwise pull, for tensioning thegcover on the side of the platform P, is

The slight additional forward movement of the front gripperjaw I2, effected by cam surface i2i,'separates this gripper jaw fromthe sticky inside surface of thecover and thus yfacill itates the lasting and feeding operations The amount of pull applied to the stock, i. e., the strength of pull, may be readily varied in order to `Suit different types of materialsA and lvarying operating conditions, by changing the tension ofthe spring [dii in the manner'explained above;

11 while the extent or duration of the pull may likewise be varied by manipulating the handle 8b,

Preferably the machine is operated at a high speed, with the main shaft 52 driven at approximately 1200 R.. P. M., so that about twenty complete lasting cycles are effected each second. A linear feeding increment of approximately oneeighth of an inch is obtained and this affords substantially 2% per second movement of the shoe. Accordingly, an average size shoe can be lasted all around its entire periphery in a matter of only a few seconds. While the herein illustrated machine has been shown as operating on the lasting margin of a platform cover C, it will be readily understood that the machine will operate on the lasting margin of the upper of a conventional type shoe in the same speedy and efficient manner.

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

1. A lasting machine having, in combination, means for engaging the bottom of a shoe adjacent to the marginal edge thereof, and means for seizing the lasting margin of the stock to be lasted and for pulling it over in contact with the shoe-bottom-engaging means and in a direction substantially parallel to the bottom of the shoe thereby to tension the stock in a direction normal to the bottom of the shoe and to draw the lasting margin inwardly over the shoe bottom.

2. A lasting machine having, in combination, a shoe-bottom rest having a shield portion adapted to be positioned on the shoe bottom and close to the marginal edge thereof, and gripper means for seizing the lasting margin of the stock to be lasted and for pulling it in a direction substantially parallel to the bottom of the shoe and over in contact with the shield portion of the bottom rest thereby to tension the stock in a direction normal to the bottom of the shoe and to draw the lasting margin thereof over the shoe bottom.

3. A lasting machine having, in combination, an edge gage for engaging the side of a shoe to position it in the machine, a shoe-bottom rest, said shoe-bottom rest being movable to an operative position in which it is positioned on and close to the marginal edge of the bottom of a shoe held against the edge gage, for supporting and positioning the shoe in a heightwise direction during the operation of the machine, and to an inoperative position in which it is withdrawn from the edge of the shoe, and means for moving said bottom rest to each of said positions.

4. A lasting machine having, in combination, an edge gage for engaging the side of a shoe to position it in the machine, a shoe-bottom rest having a shield portion, said shoe-bottom rest being movable to an operative position in which its shield portion is positioned on, and close to the marginal edge of, the bottom of a shoe held against the edge gage and to an inoperative position in which its shield portion is Withdrawn from the edge of the shoe, and means for moving said bottom rest to each of said positions.

5. A lasting machine having, in combination, an edge gage for engaging the side of a shoe to position it in themachine, a shoe-bottom rest having a shield portion over which the lasting margin of the stock to be lasted is drawn during the operation of the machine, said shoe-bottom rest being movable to an operative position in which its shield portion is positioned on, and close to the marginal edge of, the bottom of a shoe held against the edge gage-and to an inoperative 12 position in which its shield portion is withdrawn from the edge of the shoe, spring means for moving the bottom rest to said inoperative position, and operator-controlled means for moving the bottom rest to operative position.

6. A lasting machine having, in combination, means for engaging the bottom of a shoe adjacent to the marginal edge thereof, and gripper means for seizing the lasting margin of the stock to be lasted and for pulling said stock in a direction substantially parallel to the bottom of the shoe and over said shoe-bottom engaging means, said gripper means including a front jaw and a rear jaw constructed and arranged first to close on the lasting margin of the stock, then to move together inwardly over the shoe bottom while so closed on the stock, and finally to release the stock by individual movements of both of said jaws away from opposite sides of the lasting margin'of said stock.

'7. A lasting machinev having, in combination, means for engaging the bottom of a shoe adjacent to the marginal edge thereof, and gripper means for seizing the lasting margin of the stock to be lasted and for pulling said stock in a direction substantially parallel to the bottom of the Shoe and over the shoe-bottom engaging means, said gripper means comprising a movable rear gripper jaw, means for reciprocating said rear jaw back and forth over the bottom of the shoe, a front jaw associated with said rear jaw and* mounted for movement relative thereto, resilient means tending to move said front jaw toward said rear jaw thereby to close the jaws on the lasting margin of the stock to be lasted, and means for so controlling the action of said resilient means that the jaws first yieldingly close on the stock, next move together inwardly over the bottom of the shoe to tension the stock, and then separate to release the stock, said controlling means being so constructed and arranged that the inward movement of the front jaw is continued during the separating movement of said jaw.

8. A lasting machine having, in combination, means for engaging the bottom of a shoe adjacent to the marginal edge thereof, and gripper means for seizing the lasting margin of the stock to be lasted and for pulling said stock in a direction substantially parallel to the bottom of the shoe and over said shoe-bottom engaging means, said gripper means comprising a movable rear gripper jaw, power means for reciprocating said rear gripper jaw back and forth over the bottom of the shoe, a front jaw associated with the rear jaw and mounted for movement relative thereto, spring means for urging the front jaw toward said rear jaw to close said jaws on the lasting margin of the stock to be lasted, cam means for so controlling the action of said spring means that the jaws first yieldingly close on the stock, next move together inwardly over the bottom of the shoe, and then separate to release the stock, said cam means being'so constructed and arranged that the inward movement of the front jaw is continued during the separating movement of said jaws. and operatorcontrolled means for holding the front jaw away from the reciprocating rear jaw.

9. A lasting machine having, in combination, means for engaging the bottom of a shoe adjacent to the marginal edge thereof, said means being movable between operative and inoperative positions, and gripper means for seizing the lasting margin ofthe stock to be lasted and for` pulling `said stockr in .a direction substantially parallel to the vbottom of the shoe and over said shoe-bottom engaging means, said gripper means comprising a movable rear gripper jaw, power means yfor reciprocating saidl rear gripper jaw back and forth over the'bottom of the shoe, a front jaw `associated with the rear jaw and mounted for movement relative thereto, spring means for urging vthe front jaw toward said rear jaw to-close said jaws on the lastingmargin-of the stock to be lasted, cam Ymeans `for so controlling the actionof said spring means that the jaws first yieldingly close on `the stock, next move together inwardly over the rbottom of the shoe, and then Vseparate'to release the stock, said cam means being so constructed and arranged that the inward movement of the front jaw is continued. during the separating movement of said jaws, and means for moving said shoe-bottom engaging means to its inoperative position and for holding the front jaw away from the reciprocating rear jaw.

10. A lasting machine having, in combination, means for engaging the'bottom of ya shoe adjacent tov the 'marginal edge thereof, means for seizing the lasting margin `of the stock to be lasted and for pulling it in a direction substantially parallel to the bottom of the shoe and over the shoe-bottom .engaging means thereby to tension the stock heightwise ,of the shoe and to draw its lasting margin inwardly over the shoe bottom, and means vmovable toward the bottom of the shoe for ypressing the overdrawn lasting marginagainst vthe shoe bottom. 1l.v A lastingmachinehaving, in combination,

means for engaging the bottom of a shoe adja cent to the marginal `edge thereof, means for seizing thelasting margin Yof the stock vtobe lasted and for Ypulling *itl in a direction substan-y tially. parallel to the bottom of the shoe andover ,'14 the shoe bottom and ina direction lengthwise of the shoe'tofeed the shoe.

14. A lasting 'machine having, in combination,

- means for engaging the bottom of ashoe adjacent to the marginal edge thereof, means for seizing .the lasting margin of the stock to be lasted and for pullingit in a `direction substantially parallel to `the bottom of the shoe and over the shoebottom engaging means thereby rto ltension y'the stock vheightwise of the shoe and to draw its lastingmargininwardly over the shoe bottom, and a) presser foot movable toward the bottom of the. i

l5. A lasting machine having, in combination, v

means for engaging the' bottom of a shoe adjacent to the marginal edge thereof, means for seizing the lasting margin of the stock to be in contact with the shoe-bottom engaging means in different locations'successively along the edge of the shoe bottom, andy `means operating in time relation to the action' of said pulling means for pressing the tensioned lasting `margin of the stock against ,the bottom of the-shoe in a location closely adjacent to, butispaced lengthwise of the' Shoefrom, the vpulling, means'. v f

l2. `A lasting machine having, in combination, means for engaging the bottom of a shoe adja cert. to the lrinargl-nal edge thereof, kmeans for seizing the lasting margin of' the stock to be lasted vand for pulling it in ka direction substan tially parallel to the bottom ofthe 'shoe-and over the shoe-bottom .engaging means in different lo-y cations-successively alongthe edge of the shoe bottom, and means operating in time relation to..

the action of said pulling mean-Safor pressing the tensioned lasting margin of the stock against the b-ottom of the shoe in a location closely adjacent to, but spaced lengthwise of the shoe from, the pulling means, said pressing means being movable, while in pressing engagement with the lasting margin of the stock, to feed theshoe.

13. A lasting machine having, in combination, means for engaging the bottom of a shoe adjacent to the marginal edge thereofnneans for seizing the lasting marginof thestock to be lasted and for pulling it in a direction substantially parallel to the bottom of theshoe and over the shoe-bottom engaging means thereby to tension the stock heightwise of the shoe and to draw its lasting margin inwardly over the shoe bottom, and means movable toward the bottom of the shoe for pressing the overdrawn lasting margin against lasted and for pulling it in a direction substantially parallel to the'bottom of the -shoe and over the shoe-bottomengaging means thereby to tension the stock heightwise of the shoe and to draw itslasting margin inwardly over the shoe bottom, means movable toward the bottom of the for pressing the overdrawn lasting margin against the yshoe bottom, said pressing means being also operable to move the shoe away from shoe-bottomengaging means.

16. A lasting machine having, `in combination, means for engaging thebottom of a shoe adjacent to the marginal edge thereof, means for seizing the lasting margin ofthe stock to be lasted and for pullingit in a direction substantially parallel to the bottom' of the-shoeand over the shoebottom engaging means thereby to tension the ystockheighti'vise, of the; shoe and to draw its lasting margin inwardly overthe shoe bottom, and a presser foot movable toward the bottom ofthey shoe to press the-overdrawn lasting margin against the shoe bottom, said presser foot eing movable in a direction lengthwise of the shoe while in pressing engagement with said lasting margin of the stockto feed the shoe, said presser foot being also operable to move the Ashoe away from the shoeebottom engaging means. 17. A, lasting machine having, in combination, means ior'tensioning the stock' to be lasted and for drawing its lastingmargininwardly over the bottom of a shoe, and .means operable in time relation to'said tensioning means for pressing the overdrawn lasting margin against the bottom of ,the shoe, said pressing means comprising a membermovab-le successively toward the shoe bottom into pressing vengagement with the voverdrawn lasting margin, in a direction lengthwise of the shoe to feed the shoe, heightwise of the shoe awa-y from the shoe bottom, and in the opposite direction lengthwise of the shoe.

18. A lastingmachine having, in combination, means for engaging the Ibottom of a shoe, means for tensioning the stockv to be lasted and for drawing its vlastingmargin inwardly over the bottom `of the shoe, and means operable in time relation to said tensioning means for pressing the over- 'drawn lasting margin against the bottom Vof the means being also operable, while in pressing engagement with the overdrawn lasting margin, to move the shoeiaway from the Shoe-bottom engaging means.

19. A lasting machine having, in combination, means for engaging the bottom of a shoe, means for tensioning the stock to be lasted and for drawing its lasting margin inwardly over the bottom of the shoe, and means operable in time relation to said tensioning means for pressing the cverdrawh lasting margin against the bottom of the shoe, said pressing means comprising a member movable successively toward the shoe bottom and into pressing engagement with the overdrawn lasting margin, in a direction lengthwise of the shoe, heightwse of the shoe away from the shoe bottom, and in the opposite direction lengthwise of the shoe, said pressing means being also operable, while in pressing engagement with the overdrawn lasting margin, to move the shoe away from the shoe-bottom engaging means.

20. A lasting machine having, in combination, means for engaging the bottom of a shoe, means for seizing the lasting margin of the stock to be lasted and'or pulling it in a 'direction substantially parallel to thebottom of the shoe and inwardly fromfthe edge thereof in diierent locations successively alongthe edge of the shoe bottom, means operating in time relation to the action of said pulling means for pressing the tensioned margin of the stock against the bottom of the shoe in a location closely adjacent to, but spaced lengthwise of the shoe, from the pulling means, said pressing means, while in pressing engagement with the lasting margin, being movable in a direction lengthwise of the shoe and operable to move the shoe away from the shoebottom engaging means.

2l. A lasting machine having, in combination, means for engaging the bottom of a shoe adjacent to the marginal edge thereof, means for seizing the lasting margin of the stock to be lasted and for pulling it in a direction substantially parallel to the bottom of the shoe and over the shoe-bottom engaging means in'diierent location-s successively along the edge of the shoe bottom, means operating in time relation to the action of said pulling means for pressing the tensioned lasting margin of the stock against the bottom of the shoe in a location closely adjacent to, but spaced lengthwise of the shoe from, the pulling means, said pressing means being movable, while in pressing engagement with the lasting margin, to feed the shoe, and a member for applying additional pressure to the lasting margin while said pressing means is out of engagement with said lasting margin.

2'2. A lasting machine having, in combination,

means for tensioning the stock to be lasted and for drawing its lasting margin inwardly over the bottom of a shoe, means operable in time relation to said tensioning means for pressing theoverdrawn lasting margin against the bottom of the shoe, said pressing means comprising a member movable into and out of pressing engagement with the lasting margin, in a shoe-feeding direction while in pressing engagement with the lasting margin and in the reverse direction while ont of pressing engagement with said lasting margin, and a second pressing means movable into engagement with said lasting margin for applying continued pressure thereto and to prevent retrograde movement of the shoe.

23. A lasting machine having, in combination, means for drawing the lasting margin of the stock to be lasted inwardly over the bottom of a shoe, a nrst pressing means movable successivey into pressing engagement with the lasting margin, in a shoe-feeding direction7 out of pressing engagement and finally in a feed-return direction, and a second pressing means movable into pressing engagement with the lasting margin to apply continued pressure thereto after the first pressing means has moved out of vpressing engagement therewith and to prevent retrograde movement of the shoe.

24. A lasting machine having, in combination, means for drawing the lasting margin of the stock to be lasted inwardly over the bottom of a shoe, a first pressing means movable successively into pressing engagement with the overlasted margin, in a shoe-feeding direction, out of pressing engagement and finally in a feed-return direction, and a second pressing means movable into pressing engagement with the lasting margin to apply continued pressure thereto after the rst pressing means has moved out of pressing engagement therewith and to prevent retrograde movement of the shoe, the said pressing means each comprising a narrow blade-like member.

25. A lasting machine having, in combination, means for drawing the lasting margin of the stock to be lasted inwardly over the bottom 0f a shoe, a, i'lrst pressing means movable successively into pressing engagement with the overlasted margin, in a 'feeding direction, out of pressing engagement and nally in a feed-return direction, andv a second pressing means movable into pressing engagement with the lasting margin to apply continued pressure thereto after the first pressing means has moved out of pressing engagement therewith and to prevent retrograde movementof theshoe, the said pressing means each comprising a narrow blade-like member provided with a series of sharp teeth for engaging the lasted margin.

' JOSEPH FOSSA.