US2768395A

US2768395A - Cement lasting machines

Info

Publication number: US2768395A
Application number: US421335A
Authority: US
Inventors: Pulford Kenneth Blanchard
Original assignee: United Shoe Machinery Corp
Current assignee: United Shoe Machinery Corp
Priority date: 1953-05-02
Filing date: 1954-04-06
Publication date: 1956-10-30
Anticipated expiration: 1973-10-30

Description

Oct. 30, 1956 K. B. PULFORD 2,768,395

CEMENT LASTING MACHINES Filed April 6, 1954 I 5 Sheets-Sheet 1 In van for Kenneth B Pu/fora Oct. 30, 1956 K. B. PULFORD CEMENT LASTING MACHINES 5 Sheets-Sheet 2 Filed April 6, 1954 Inventor Kenneth B BilfO/d Oct. 30, 1956 K. B. PULFORD CEMENT LASTING MACHINES 5 Shets-Sheet 5 Filed April 6,

Inventor Kenqezh B Pulfor'a Oct. 30, 1956 K. B. PULFORD CEMENT LASTING MACHINES 5 Sheets-Sheet 4 Filed April- 6, .1954

Inventor a Kenneth B Pulford Oct. 30, 1956 K. B. PULFORD v CEMENT LASTING MACHINES 5 Sheets-Sheet 5 Filed April 6, ,1954

flnnezh B Pu/ford United States Patent spasms EMENT .LA IIN MAQH NES Kenneth Blanchard iPulford, Leicester, :En'gland, assignor to United Shoe Machinery ,Corporation, elilernington, N-z a-aeorpnra on 9 N wt- 91$) Ap o Arri h, l t, efl Q- 4 ,1 3.57

:Claims priority, application'GreattBritain Mayel wsil .4 cl ims- (Griz-5 .8)

This invention relates to end'lasting machines, and is herein illustrated as embodied in an aiito'matic power =operated toe lasting machine constructed in some aspects as disclosed in United States Letters Patent 2,134,- 148, granted on October 25, 1938, upon an 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 2Q, 1938, upon an application "of said Roberts, andNo. 2,722,022, granted November 1, 1-955, uponan application of Lutyens et al. While the machine shown is especially .designed for fiat lasted work, i. e. for use [on shoes in which the margin of the upper throughout its width is to be lasted over the insole generally parallel relation to a last bottom, it 'is to be understood that the present invention, in several novel aspects, is not limited .to machines of the illustrated type nor to machines for operating on the toe ends of flat lasted footwear.

As explained in the Roberts Patent No. 2,140,652, improved end lasting is obtained ;by securing an overwiped lasting margin to an jinso'le on a last after a repeated inward, rather than a .retractive, wiper .operatin'g movement. Fastener inserting mechanism employed in the machine disclosed in that patent is accordingly operated after end-embracing wipers have wiped the lasting margin inwardly, been retracted, and then again moved Zinwardly ,to positions nearer the insole iedge than at the end ,of their first inward wiping rnove'rne'nt. The novel organization disclosed in the 'Lutyens et al. patent is also provided with end wipers operating in a similar manner but, in lieu of using fasteners, it is adapted to last at the end of 'a shoe an upper having a margin coated with adhesive. For this purpose a machine is .there described as being provided with power operatedmechanism Operating n ti e lat on in e wip r moveme for applying pressure to substantially all of that portion of the coated lasting margin extending inwardly beyond the wiping edges of the wipers after their repeat inward wiping movement.

Whether the ast margin to see ed to an insole y means j f ner e adhesive, .2 problem "of rather l Standing m t w th in operat ng t ese and other end lasting machines, especially at the toe portions of shoes having relatively thin or filim y insoles, is that of avoid ng inso displacement, ien amid or buckling due to th'e'upwarda'nd/or inward wiping'action 0f h Wipers s they m ve over th sides of th h e and marginal portions of the upper. It will be recognized that a solution to this problem is of particular importance to the success of cement toe lasting sin e. thin insoles are more frequently used in such work and pres sure of the wipers acting against undistorted insoles is frequently relied on to obtain well defined feather edges together with the desired bond with the uppers.

I v w of the f re o ng it is an obiee o th invention to provide "an improved power-operated end lasting machine for operating on a shoe to be flat-lasted by means of adhesive and of the type having repeated in- Patented Oct. 30, 1956 ice Ward wiping movement of its end embracing wipers, said machine to comprise/marginal holddown means cooperative with the insole of the shoe to guard it against displacement or-bending during the upwiping and overwiping movements of the wipers, the marginal holddown means acting in time relation to the movements of the wipers and being at least partially interposed between them-and an insole to prevent premature adhesion of the lasting margin .and insole without interfering with effective inward wiping movements of the wipers. Tothe end just stated, and as a feature of this invention, the illustrative machine comprises in novel combination, means for supporting a last carrying an insole and an upper to be end lasted with adhesive, power-operated end embracing -wipers arranged, after first wiping the upper material inwardly, to retract and then again move inwardly to positions where their wiping edges are nearer the edge of the insole than at the end of their first wiping movement, a resilient U-shaped holddown adapted to engage the margin of the insole as the lasting margin of the upper is wiped thereover during initial inward wiping movement of the wipers, and mechanism for withdrawing the marginal holddown from beneath the overlasted upper as the wipers are being retracted.

Hitherto a common Way of sustaining an insole against upwipi-ng and/or overwiping action of wipers has been by means of a holddown member engageable with the insole and movable from the path of the wipers to clear them for operation. Such means is employed, for instance, in'the tack toe lasting machine of the above- :mentioned Roberts Patent No. 2,134,148 whereby an insole engaging plate (there designated by the reference character 217), D-shaped in plan, is movable to and from an operative position in which space is left between it and the end-0f the toe for the margin of the upper to begin to be laid over the insole. The present invention in one aspect affords further improved insole sustaining means to be distinguished from the prior art although partial resemblance to the Roberts insole engaging mechanism referred to will be noted in the structure herein disclosed. Thus, as illustrated, and in accordance with another feature of the invention, provision is made, in an automatic machine for end lasting shoes with adhes'ive, for the novel combination of a pair of wipers having repeat inward wiping movements in the manner above indicated, a resiliently flexible holddown adapted to engage the insole margin during an upwiping operation and thereafter be interposed between the insole margin and the lasting margin of the upper during the initial in ward wiping movement of the wipers, means for bracing the holddown against the insole during the upwiping and initial inward wiping of the wipers, and power means for retracting said holddown in one direction from the lasting margin as the wipers are retracted therefrom in the opposite direction.

As herein disclosed the insole sustaining means includes the marginal holddown and a presser member cyclically operative thereon. A further feature of the invention accordingly is to be recognized in the power means for actuating the presser member and the holddown in time relation to the operating movements of the wipers and with respecttoupper'spreading fingers, sometimes known as retarders, and operative as disclosed in the last-mentioned Roberts patent. The invention thus has in View such control of the margin of the upper as to prevent it from adhering prematurely to the insole and to render the wipers more effective in lasting the upper tightly over the non-displaced insole edge. A still further feature resides in the combination, as herein'described, of poweroperated insole sustaining means operative in time relation to the movements of wipers having repeat inward wiping movements, and pressure applying members engageable with the inner portion of the lasting margin after the repeat inward wiping movement of the wipers, the pressure applying members being operated with impact as disclosed in the Lutyens et al. patent above cited.

The above and other features of the invention, together with novel details of construction, will now be more particularly described in connection with an illustrative embodiment and with reference to the accompanying drawings thereof, in which Fig. 1 is a view in side elevation of the upper portion of a toe lasting machine, portions being broken away, and showing power means for driving the lasting instrumentalities, the parts being indicated in their positions at the start of a cycle of operations;

Fig. 2 is a view in side elevation, some parts being in section, and showing a shoe and shoe engaging elements of the exemplary machine shown in Fig. l in their relative positions at an early stage in the operating cycle;

Fig. 3 is a view on a smaller scale and in rear elevation of the mechanism shown in Fig. 2 for operating insole engaging members;

Fig. 4 is a plan view of the mechanism shown in Fig. 3;

Fig. 5 is a plan view showing the marginal holddown seen in Fig. 4 in operative relation to an insole prior to inward wiping action on an upper;

Fig. 6 is a side elevation showing parts seen in Fig. 2 but during the initial inward wiping movement of the wipers; and

Fig. 7 is a side elevation of that portion of the machine seen in Figs. 2 and 6 and showing the parts at the end of a cycle, the actuating mechanism also being indicated.

The illustrative machine, as indicated above, is a power operated toe lasting machine of the general construction fully disclosed in the Roberts Patent No. 2,134,148,

above cited, and embodies certain modifications thereof as described in the above-mentioned Roberts Patent No. 2,140,652, further improved by the mechanism set forth in said Lutyens et al. patent. For purposes of the present invention, therefore, only parts of the machine relating specifically thereto, together with those portions of the common mechanism hitherto disclosed and necessary to an understanding thereof, will be here described in detail.

The operating instrumentalities comprise a toe rest 10 (Fig. 2) having a rubber pad 12 on which the toe of a shoe to be lasted is supported, a pair of toe embracing wipers 14, a toe band 16, upper spreading fingers or retarders, only one of which is shown at 18, presser plates respectively having ribs 22, and a U-shaped hammer 24. The shoe is presented to the machine on its last, toe first and in bottom up position, an upper U to be toe lasted being presumed to have its lasting margin precemented and/or the margin of an insole I on the last being thus treated. For cooperating with the toe rest 10 in holding the shoe in the operative position shown in Figs. 2 and 6 and against vertical movement due to stresses exerted on the shoe during the course of a cycle of power operations of the machine, holddown means about to be described are provided.

Near the front of the machine and at opposite sides thereof, as shown in said Roberts Patent No. 2,134,148, is a pair of vertical slides 30 (Figs. 1, 2 and 3) respectively mounted on vertical rods (not shown). A transversely extending crosshead 32 for carrying the holddown means just referred to is supported by arms 34 mounted on pivot pins 36 (one shown) carried by the slides 30, respectively. The arms 34 are normally latched in upright position to the slides 30 by means of spring hacked plungers 38 (one indicated in Fig. 3) (as shown in Fig. 5 of the last-mentioned Roberts patent), but when unlatched the holddown means may be swung forwardly to an out-of-the-way position to permit access for changing wipers or making other adjustments.

One portion of the holddown means includes a narrow insole engaging foot 40 and a pair of abutments 42, 42 (Fig. 2) arranged to engage the insole near the opposite sides of its ball portion. The foot 40 is formed on the rearward lower end of a plate 44 and is arranged to engage the insole substantially midway between its opposite side edges and about an inch, for example, from the toe end extremity. The upper end of the plate 44 is secured to the crosshead 32 about midway of its width by a screw 46 (Fig. 3). The

abutments

42, 42 are adjustable heightwise relatively to the foot 40 by means of an adjusting screw 48 (Fig. 2) in order to position the toe ends in the best relation to the plane of the wipers 14.

Another portion of the holddown means, provided more especially for the purpose of holding the insole on the last bottom and preventing buckling and distortion of the insole I as a result of the operation of the toe wipers 14, comprises a thin marginal holddown plate 50, preferably of spring steel and U-shaped as shown in Fig. 5. Front ends of this. holddown 50 are upturned and detachably secured by screws 52 threaded into the rear ends of oppositely disposed

carriers

54, 54, respectively. The latter are triangular in form as shown in Fig. 2 and are actuated in unison, as will be described, to move the plate 50 toward and from engagement with the toe margin of the insole. An upper portion of each

carrier

54, 54 is bifurcated to receive the lower end of an actuating arm 56, a pin 58 carried by each carrier 54 extending through a slot 60 disposed lengthwise in each arm 56. For guiding each carrier it is also provided with two other pins 62, 64 which project into cam slots formed in a member 66, the members 66 being secured to the crosshead 32 by

screws

68, 70, respectively. The pins 62 extend into horizontal front portions of the cam slots, while the pins 64 may extend either into rearward portions 74 that extend horizontally at a slightly higher level and then somewhat downwardly at the toeward end or into arcuate cam slots 76 which open into the portions 74, respectively.

Upper ends of the

arms

56, 56 are fixedly mounted on a shaft 80 (Figs. 2, 3, 4 and 7) operatively connected to a main cam shaft 82 (Figs. 1 and 7) of the machine by means now to be described. The shaft 80 has its left end (as viewed in Figs. 3 and 4) journaled in a boss 84 formed on the crosshead 32 and has its midportion extending through an operating sleeve 86 to which further reference will subsequently be made, it sufiicing now only to note that this sleeve is journaled in bearings formed in a boss 88 and a web 90 that are integral with the crosshead 32, and that peripheral slots in the sleeve 86 accommodate the arms 56. To the right-hand end of the shaft 80 (as seen in Figs. 3 and 4) is secured a lever 92 which is connected, by means of a link 94, with one arm 96 of a lever 98 having a second arm 100. The lever 98 is pivotally mounted on a stub shaft 102 which is journaled in one of the arms 34 and in a bracket 104 (Fig. 3) secured thereto. The arm is connected. via a link 106, with a cam lever 108 (Fig. 7) actuated by a closed cam 110 mounted on the shaft 82. (The latter corresponds with the main cam shaft designated 101 in the Roberts Patent No. 2,134,148.) The throw of the cam 110 is arranged to move the marginal holddown 50 heightwise of a shoe in appropriate time relation to the actuation of the other operating instrumentalities.

In order to sustain the thin holddown 50 in operating position against the insole I and effectively brace it by pressural contact therewith against upwiping stresses exerted about the toe end of the shoe by the wipers, means are provided in the form of a stiff plate 114 that is generally U-shaped as shown in Fig. 4 and is operated in time relation to the actuation of the holddown 50. The plate 114 is also detachably mounted to permit a replacement thereof to correspond sutficiently with a holddown 50 for appropriate overlapping contact therewith. Thus, theplate 114 is carried by a pair of parallel arms 116, mounted as will later be explained, the rearward ends of the arms. extending closely to embrace an upstanding central rib on the plate 114 beneath its flat horizontal head-118. Forwardly extending portions 120 (Figs. 2 and 4) of the plate 114 are arranged to straddle the foot 411. An upstanding "lug 122 on one of the portions 1211 is arranged to prevent the plate from moving rearwardly off the arms 116. Pivotally mounted on each of the arms 116 at 124 is a block 126 housing aspring plunger 128 arranged to bear against the forward ed'geofthe head 118 thereby yieldingly urging the plate 114 rearwardly until the lug .122 engages the forward end face of the block 126.

As best seen in Fig. 4, the

members

66, 66 are U-shaped when viewed from above, their rearward ends respectively having inwardly directed lugs 130 ,(Fig. 4) for carrying apin 132 (Fig. 3) on which the arms 116 are pivotally mounted for operating the plate 114. Incidentally, the pin 132 also affords support for the plate 44. In order to actuate the arms 116, as required, in a cycle, they are respectively provided with cam slots 134 (Fig. 7) for receiving pins 136 respectively carried by

arms

138, 138 secured to the above-mentioned sleeve 86, and this sleeve is rotated by driving connection with the main cam shaft ofthe machine. Thus, affixed to an end portion of the sleeve :86 is a lever140 connected by a link 142 to one arm .144 of a lever 1146 having a second arm 148. (The link 142 corresponds with the link designated 225 in the Roberts Patent No. 2,134,148.) The lever 146 is pivotally mounted on the stub shaft 102 and the arm 148 is connected, via a link 150, with a, cam lever 152 (Fig. 7) actuated by a closed earn 154 mounted on the shaft 8 2.

The mechanism by which the wipers 14 and the hammer 24 are power operated to effect their actuation in correct time relation to each other, as well as in proper time relation to the operating movements of both the marginal holddown plate '50 and of its bracing plate 114, isessentially as disclosed in the aforementioned Lutyens et al. patent and will therefore now be but'briefly described. Referring especially to Fig. 1, the wipers 14 are respectively mounted on carriers supported, through brackets 162, on a pair of castings 164 movable verti- I cally along rods 166 (only one shown) and on other parallel fixed rods 168, the parts seen in the drawings being thus primarily associated with only one of the wipers. For moving .the wipers heightwise of a shoe positioned in the machine the castings 164 have their lower ends respectively connected by a link 170 to a lever 172 mounted on a rod 174 and connected by a link 176 to a lever 178 which carries a roll 180. The latter lies in a cam track 132 formed in a cam wheel mounted on the main cam shaft 82. To advance or retract the wipers lengthwise of the last the brackets 162 are operated by a chain of linkage consisting of links 184, a lever 186, and a link 188 operated by a lever 190 having a follower connection with a cam (not shown) mounted on the shaft 82. For closing the wipers laterally of a shoe in the machine each of the wiper .carriers has connected to itby a ball joint (not shown) .the forward end of a rearwardly extending rod itself connected to upwardly extending arms of a lever 192 which is connected through a rod 194 to a lever 196 ,operated by a cam on the shaft 82. Means not herein W6 detaehablysupports carriers on whieht-he plates 20 are mounted. The table 2Q0is pivotally supported at each side for movement heightwisejas well as lengthwise by the 'lowerends of dependinglinks 01 204 the forward 1 4x202 ha in a rin-a -s q o n c which p m t the forward end of the table to pivot downwardly. The advancing andclosing movements are imparted to the presser-plates 2-by the same means imparting corresponding movementsto the wipers 14. Thus, the carriers for the plates 20 are-connected by links 206 -to depending lcvers 219.8 swingable abouttheir upper ends, the ievers 208 being aetuatable by the wiper operating lever 1952, as m ore fully explained in the Patent No. 2,134,148. For the -purpose of moving the presser plates 20 lengthwise ofthe shoe relatively to the wipers '14 during the second inward wiping movement of thelatter so as to carry the ribs 22 across the wiping edges of the wipers, links 210 connect the table '200 with depending levers 212 (Fig. 1') swingable about their upper ends by the fore mentioned wiper-advancing lever 186 as described in the last-mentioned patent; the

links

206, 210 are each in two parts in serving a toggle arrangement straightenable to .eifect the relative ,advanee of the plates by action of a roll 2 4 lying in a traek of a cam on a secondary cam shaft 216 g. 1) and carried by a lever 218 pivotally mounted at 220. The shaft 216 is driven through suitable gearing by the main camshaft 8 2.

Eereperating the hammer 24 so as to cause the ribs22 to'fiatten and compact theginner precemented margin of the upper lyi-ng inwardly of'the closed Wipers 14, appropriate rnechanism as disclosed insaid copending application-is prmzided and supported by a head casting 222 bolted onthe nrain frame. The hammer 24 is mounted on the'lower end of a vertically movable driver bar 224 slidableina tubular slide 226t-hat .isguided in vertical waysformedin the casting 222. The links 202 are pivotally connected at their upperv ends to links228 connecting the slide 226-with anoperatinglever 230, while the links 204 1311 3 pivotally connected at their upper ends to .the slide itself. The lever 230 is movable about a trans- ,yerse it 23 2 byac am'mounted on the shaft 216 and, accer n-gly, lowers the slide 226 and hence the presser plates 21ionto theinsole at the appropriate time in a cycle.

Springs-not herein shownbut mounted within the slide are arranged to ;-be compressed by means including a lever 134 pivoted at 236 andoperated by a cam on the shaft 216. The forsvardends of the-lever 234 are connected by apair of links 2f33 to a crosshead 240 having operative connection with the driver bar 224. The construction is such that-the driver bar is raised by the crosshead and held in raised position with said springs compressed until, at the proper instant in the cycle, a latch (not shown) is operated during the downward movement of the slide226 to cause the bar and its hammer to be impelleddownward'ly by said springs.

Thewipers 14 of the illustrative machine, as indicated above and explained in the Roberts Patent No. 2,140,652, are adapted to wipe the toe end of the upper, first heightwise of the last by relative movement of the wipers and the-last, and next to wipeit inwardly over insole I, and lastly-to effect a repeat inward wiping movement to positions where their wiping edges are not so far from the edge of the insole ;as-at the end of their first inward wiping movement. The cycle of the machine of that patent is somewhat modified by revised clutch mechanism (including a control cam on the main cam shaft) as disclosed in the Lutyens et a1. patent above cited (but not herein shown) in order to provide an improved timing for the operation of the novel instrumentalities described therein and having their counterparts in the present organization. Thus, it will be understood that an operator of the present machine is also enabled to trip the clutch to start the machine in operation and to trip itagain after the machine has been brought automatically to a stop at the end of the first overwipe when he is satisfied that a shoe is being correctly lasted. Accordingly, in the initial portion of the ensuing dwell of the wipers, during which the wipers 14 and the

presser member ribs

22, 22 jointly compress substantially the entire overlasted margin, the hammer 24 will strike the presser plates a flattening blow, and after appropriate wiper dwell the operator will trip the clutch a third time to complete the cycle by returning the instrumentalities to their respecive staring positions shown in Fig. 7. In view of the number of operating instrumentalities and their limited working area available on the bottom of the toe portion of many of the narrower widths of shoes to be lasted, it is essential that the marginal holddown 50 and its cooperative bracing plate 114 be deftly moved into and out of operative positions during the early part of the cycle without fouling or interfering with the other parts. Prior to reviewing the operation of the machine for purposes of this invention it should be noted that the construction and operation of the upper spreading and controlling means, generally designated 160 (and including the fingers 18) and partially shown in Figs. 2 and 7, are generally similar to those disclosed in the Roberts Patent No. 2,140,652.

Ordinarily, a shoe to be presented to the machine will have been side lasted and the usual pulling over tack at the toe end will have been removed. Having made any necessary adjustments to the operating instrumentalities of the machine to suit it for operation on the particular style and size of shoe to be lasted, an operator will mount the shoe on the jack for presentation as above described, the bottom of its forepart being brought rearwardly into engagement with the foot 40 and the

abutments

42, 42, and the bottom of the toe end of the insole lying in substantially parallel relation to the operating plane of the wipers 14. As shown in Fig. 7, the wipers initially occupy a lowered position adjacent to the toe band 16. Upon initially tripping the clutch to start the power cycle of the machine, the upper spreading and retarding fingers 18 descend to engage the insole I and then move rearwardly and swing apart sufficiently to ride off the toe end of the insole and snap downwardly between the toe end of the last and the inner layer of the upper materials to spread the upper outwardly over the lowered wipers. As the fingers approach their opened positions, the holddown plate 50 and the plate 114 are swung downwardly from their inoperative positions indicated in Fig. 7 to their relative operating positions shown in Fig. 2, the plate 114 centrally bearing down on the plate 50 to hold it against the margin of the toe of the insole.

The downward movement of the plate 50 is effected by counterclockwise rotation of the cam 110 (as seen in Fig. 7) to shift the link 106 to the right. Thus motion is transmitted through the lever 98 to lower the link 94 and rotate the shaft 80 counterclockwise. Resultant counterclockwise swinging of the arms 56 acts on the pins 58 to pivot the

carriers

54, 54 clockwise about the pins 62. The pins 64 consequently descend in the slots 72, respectively, until they reach the slots 74, whereupon continued counterclockwise movement of the arms 56, acting through the pins 58, urges the

carriers

54, 54 rearwardly as guided by the slots 72, 74. The holddown is urged downwardly on the margin of the toe of the insole by the slightly inclined rearward end portions of the slots 74 guiding the pins 64 downwardly.

The downward movement of the bracing plate 114 to engage and sustain the holddown 50 in insole engaging position follows immediately after the lowering of the latter. Thus, the cam 154 early in the cycle shifts the lever 152 and the link 159 to the right (as viewed in Fig. 7) to lower the link 152 and hence rotates the lever 140 and the sleeve 86 counterclockwise. Resultant movement of the arms 138 to carry the pins 136 upwardly in the slots 134 from the positions shown in Fig. 7 to those shown in Fig. 2, causes the arms 116 to pivot clockwise on the pin 132 and thereby depresses the plate 114 against the marginal holddown 50. (This mechanism 8 resembles that shown in step views of Figs. l3, l5 and 17 of the Roberts Patent No. 2,134,148.)

After the wipers have completed their upwiping action on the upper and have started their forward and closing movements over the edges of the insole and of the holddown 50 as indicated in Fig. 6, the plate 114 under control of the earn 154 is swung upwardly out of the way of the advancing wipers. It is important to note that the holddown 5t) continues in its operative position, the wipers wiping the lasting margin over the holddown. The insole is thus sustained against buckling and is separated from marginal portions of the upper to prevent premature adhesion therewith. If the operator is satisfied with the progress of the operation after the machine comes to rest with the wipers fully advanced and closed, he trips the clutch to cause the wipers 14 to retract to positions near the insole edge. During such rearward retraction of the wipers, the holddown 50 is moved forwardly under the control of the cam 108 to be retracted from beneath the overwiped lasting margin. As the wipers again advance, the arms 56 continue their clockwise movement (as viewed in Figs. 2 and 7), the pins 64 moving upwardly in their slots 76 to raise the holddown 50 to its inoperative position and out of the path of the hammer 24 which, as disclosed in said Lutyens et al. patent, is about to be driven downward against the plates 20 to cause the ribs 22 to compress the inner portion of the overlasted margin of the upper against the insole.

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

1. In an end-lasting machine, the combination with end-embracing wipers and power means for causing said wipers to repeat inward wiping of the marginal portion of an upper over an insole on a last, of a poweroperated holddown member simultaneously engageable with the margin of the insole and the under side of the overwiped margin of the upper during initial inward wiping movement thereover of the wipers.

2. In a lasting machine, toe embracing wipers, power means for sequentially causing said wipers to wipe the marginal portion of an upper inwardly above the toe of an insole on a last, retract, and then wipe said upper portion inwardly with compacting pressure, a flat, resilient power-operted holddown movable into engagement with the margin of the toe portion of the insole, said holddown being operative in time relation to the wipers and adapted to be interposed beneath the margin of the upper when the latter is first overwiped, and means operative during the first inward movement of the wipers in wiping the upper portion over said holddown to sustain said holddown in engagement with said marginal portion of the toe of the insole.

3. In a cement toe lasting machine of the type having wipers for embracing the upper of a shoe about the toe end of a last and for wiping the marginal portion of the upper inwardly over an insole on the last, a resilient holddown having a portion corresponding in outline with that of the toe of the insole and marginally engageable therewith during said inward wiping movement of the wipers, a member engageable with an inner portion of the holddown to press it into operative position and against the insole, power means for operating said member in time relation to the wipers, means for removing the holddown from beneath the overwiped lasting margin to clear the wipers for partially re-wiping said margin inwardly, and means operative on that portion of the lasting margin not re-wiped for pressing it against the insole.

4. In a lasting machine, the combination with wipers and means for moving them lengthwise and laterally of a shoe to wipe the margin of the upper around an end of the shoe inwardly over an insole into lasted position, of a resilient holddown movable lengthwise of the insole to overlie an end thereof prior to and during initial inward wiping movement of the wipers, and means movable heightwise of the shoe and into engagement with said holddown adjacent to its end portion further to urge the holddown into contact with the insole and brace it during the wiping movement of said wipers thereover.

References Cited in the file of this patent UNITED STATES PATENTS FOREIGN PATENTS Great Britain July 26, 1939