US1951372A - Method of making shoes - Google Patents

Description

March 20, 1934. c PYM 1,951,372

METHOD OF MAKING SHOES Filed Oct. 26. 1951 Figil.

4 Sheets-Sheet 1 @zav March 20, 1934.

c. F. PY M METHOD OF MAKING SHOES Filed Oct. 26. 1931 4 Sheets-Sheet 2 March 20, 1934. Q R PYM METHOD OF MAKING SHOES Filed 001:. 26. 1931 4 Sheets-Sheet 3 March 20, 1934. c PYM 1,951,372

METHOD OF MAKING SHOES Filed Oct. 26, 1931 4 Sheets-Sheet 4 Patented Mar. 20, 1934 UNITED STATES PATENT OFFICE- METHOD OF MAKING SHOES Application October 26, 1931, Serial No. 571,112

26 Claims.

This invention relates to methods of makin shoes, and more particularly to the manufacture of shoes in which the marginal portion of the upper materials (hereinafter referred to inclusively as the upper) is secured in lasted relation to an insole along a portion, at least, of the shoe bottom by an adhesive. The invention is herein illustrated by reference to operations performed at the opposite sides of the shoe between its toe and heel end portions, but it is to understood that it is not thus limited in its applicability.

An object of the invention, among others, is to produce a shoe in which, preparatory -to the sole-laying operation, the upper is smoothly and tightly conformed to the contour of the last and is firmly secured to the insole by adhesion, and in which the marginal portion of the upper lies in a firmly compacted and smooth condition upon the insole. To this and other ends, the invention provides an improved method including the shaping of the upper over the last and insole and the treatment of its marginal portion on the insole with pressure and heat. As herein illustrated, the upper is shaped to the contour of the last and its marginal portion laid inwardly over the insole substantially in lasted position without the application of heat to the upper, and thereafter its overlaid and cement-coated marginal portion is subjected to wiping pressure and heat to iron it smoothly upon the insole and insure its firm adherence to the insole. The wiping of the upper while heating it serves effectively to smooth it free from wrinkles and to press it closely and evenly upon the insole; and the heat, moreover, affects the cernent, as by accelerating the hardening or setting thereof, sothat the upper is securely held in the position assumed under the wiping pressure. In accordance, further,

with the procedure herein illustrated, the wiping pressure is directed inwardly from the edge of the shoe bottom, so that it tends to tighten the upper over the last and insole. An important advantage in applying the heat, as above suggested, only after the upper has been conformed to the last and its marginal portion laid over the insole is that there is no danger of damaging by heat any portion of the upper that is visible in the finished shoe or of affecting the cement in such manner as to tend to harden or set it prematurely and thus interfere with the proper shaping of the'upper materials.

While it is contemplated that, consistently with the objects of the present invention, the upper may be shaped to the contour of the last and its marginal portion laid over the insole in various ways, in one novel aspect of the invention these steps are performed, as herein illustrated, by the use of a flexible apron in engagement with the upper. More particularly, such an apron, preferably elastic, is used as herein shown to last the opposite sides of the shoe and to hold the marginal portion of the upper pressed upon the insole until the cement has set sufficiently to prevent displacement of the upper from lasted position, after which the margin of the upper is released from this pressure and is subjected to wiping pressure and heat as hereinbefore described. If the kind of cement in use renders it desirable, temporary fastenings may be inserted near the edge of the upper, as further illustrated, to assist in holding it in lasted position until the pressure and. heat are applied, and the use of such temporary fastenings is within the province of the invention regardless of the particular manner in which the upper is conformed to the last and insole.

While the steps of the novel method may be performed in various ways and by the aid of any suitable tools or devices, it is contemplated that the method may be very conveniently practiced by the use of machines shown and described in my copending applications, Serial No. 555,035, filed on August 4, 1931, and Serial No. 481,919, filed on September 15, 1930, and the invention is accordingly herein illustrated by reference to operations performed in the use of those machines.

The novel method will now be more particularly described by reference to the accompanying drawings and thereafter pointed out in the claims.

In the drawings,

Fig. 1 is a view partly in .elevation and partly in section, showing a shoe positioned for the lasting of its opposite sides by a flexible elastic apron forming a part of the machine disclosed in the above-mentioned application, Serial No.

Fig. 2 is a sectional view illustrating how the upper is'stretched and conformed to the last by the flexible apron prior to the laying of its marginalportion over the insole;

Fig. 3 is a perspective view showing how the marginal portion of the upper is laid inwardly over the insole in position to adhere to the insole by the flexible apron;.

Fig. 4 is a view similar to Fig. 3, but illustrating how temporary fastenings may be used to assist in holding the upper in lasted position;

Fig. 5 is a view partly in elevation and partly in section, showing the side-lasted shoe positioned for the treatment of the marginal portion of the upper by wiping pressure and heat in the use of the machine disclosed in application Serial No. 481,919;

Fig. 6 shows how the marginal portion of the upper is wiped inwardly from the edge of the shoe bottom while heat is applied thereto;

Fig. '7 is a view partly in elevation and partly in section lengthwise of the shoe, illustrating more fully the relation of one of the wiping and heating tools to the bottom of the shoe;

Figs. 8 and 9 are views similar to portions of Figs. 5 and 6 respectively, illustrating the treatment of a shoe in which temporary upper-holding fastenings have been inserted as shown in Fig. 4; and

Fig. 10 shows the condition of the bottom of a shoe after it has been operated upon by the novel method.

Since the constructions of the above-mentioned machines are fully disclosed in the copending applications, only portions thereof that it is necessary to refer to for an understanding of the method of the present invention are herein shown in detail.

As herein illustrated, treatment in accordance with the novel method is applied to the opposite sides of a shoe the toe and heel end portions of which have been previously lasted, the heel-end portion of the shoe herein shown having been lasted by the use of tacks and the toe-end portion by the use of cement for holding the margin of the upper in lasted relation to the insole. It is to be understood, however, that one or both ends of the shoe may have been lasted in a different manner or may be in'unlasted condition at the time when the sides are lasted by the present method.

For stretching and shaping the opposite sides of the upper to the contour of the last and for laying its margin inwardly over.the insole there may be utilized, as more fully disclosed in application Serial No. 555,035, a'fiexible elastic apron 20 preferably consisting of a sheet of vulcanized rubber formed and arranged to present initially more or less of a hollow in which to receive and support a last and shoe presented bottom upward. The apron is thus arranged to extend across the top of the upper and last beneaththe same and, as illustrated, is of such length as to extend from the toe-end portion to the heel-end portion of the upper and to overlap more or less these different end portions. The apron is thus suspended in position to receive the shoe on overlaying devices comprising plates 22-to which the apron is fastened, and to assist in supporting the last and shoe the apron carries a block 24 on which is mounted a member 26 provided with a spindle 28 arranged to project into the spindle hole of the last.

To render the flexible apron 20 effective upon the upper, the last and shoe supported as above described are depressed within the apron by a member 30 which engages the insole substantially midway between the opposite side edges of the latter. As the shoe is forced downwardly by the member 30 the overlaying members 22 are moved inwardly toward it, thus carrying portions of the apron inwardly and pressing them against the sides of the shoe to render them more effective, by frictional contact with the upper, to. work the upper heightwise of the last as the shoe is depressed, the apron being stretched more or less by the downward movement Of 1 shoe to assist in stretching the upper over the last and in working it tightly into conformity to the contour of the last. The edges of the members 22 are curved widthwise of the last in substantial conformity to the curvatures of the side edges of the insole, and'the members are also curved heightwise of the last in substantial conformity to the lengthwise curvature of the bottom face of the last and of the edges of the insole on the last. Accordingly when the parts have arrived in the positions illustrated in Fig. 2 the opposite sides of the upper have been tightly conformed to the contour of the last and are held in close relation to the edge of the insole by the members 22 and the apron with the lasting margin of the upper materials, i. e., that portion of the materials that is to be laid over the bottom face of the insole,

projecting beyond the edge of the insole. The

operator may then apply wet cement to the lasting margin of the upper materials, as permitted by a pause in the operation of the machine, the portions of the materials to which the cement should be applied being accurately determined so that insurance is afforded that the cement will be applied where, and only where, it is needed. If, on the other hand, there has been previously applied, as may be the practice, a cement which is dry and is adapted to be softened by a solvent, the operator may at this time apply the solvent to render the cement wet or tacky. Obviously the cement may, if desired, be applied to the insole, as is sometimes the practice.

As the operation continues, the shoe is further depressed until its bottom face is somewhat below the level of the overlaying members 22, and these members are moved farther inwardly toward each other to force portions of the apron 20 over the insole while further stretching the apron. The upper is thus drawn tightly inward over the edge of the insole and is laidupon the bottom face of the insole in position to adhere thereto, the member 30 being preferably raised to permit the bottom of the shoe to be pressed more firmly against the apron. This stage of the operation is illustrated in Fig. 3. The shoe is then permitted to remain under pressure of the apron until the cement has set sufiiciently to hold the upper against displacement from lasted position, whereupon it is released from pressure and removed from the apron.

In accordance with the method of the present invention, carried out in the manner herein illustrated, the marginal portion of the upper overlying the insole is next subjected to wiping pressure and heat; and it is contemplated that for the purposes in view the cement will not at this stage have completely hardened or set, especially if it is of such a character as not to be softened by the application of heat. This treatment, as illustrated, is applied by use of the machine shown in the previously mentioned application Serial No. 481,919. As shown in Figs. 5 and '7, the lasted shoe is placed bottom downward upon wiping and pressing members 32 supported on blocks 34 in which are mounted electrical heating units 36 whereby the blocks and the members 32 are maintained in a heated condition. The members 32, as shown in Fig. 7, are shaped in substantial conformity to the lengthwise contour of the bottom of the shoe and are so constructed as to engage the marginal portion of the upper continuously along the forepart and shank portions of the shoe bottom and also to overlap portions of the upper at the sides of its toe and heel ends.

These members are also preferably shaped in approximate confoi ihitygto the edge contour of.

the shoe bottom to assist in limiting them substantially to engagement with the marginal portion of the upper. The shoe is controlled from above by supporting means including a member 38 arranged to engage it at the top of the forepart to support it against the pressure applied on its bottom face. The pressing means is operated in the manner fully disclosed in the last-mentioned application, the members 32 being forced inwardly toward each other in wiping engagement with the upper while pressing it with increasing force upon the bottom face of the insole and applying heat thereto, asillustrated in Fig. 6. In this way the marginal portion of the upper is pressed firmly and compactly upon the insole and is ironed free from wrinkles,

" the inwardly directed wiping action serving additionally not only to prevent the upper from being squeezed outwardly at the edge of the insole by the pressure applied but also, it may be, to

draw it still more tightly inward over the insole. The application of heat to the upper not, only assists in the elimination of any surface irregularities in its margin, but also accelerates the drying or setting of the cement, so that when the shoe is released from pressure there will be no displacement of the margin of the upper from the position assumed under the pressure. If the cement used has, for example, a rubber base, it may be first softened by the heat and thereafter vulcanized so as to hold the parts firmly united.

. In any case, moreover, the pressing of the parts firmly together increases the effectiveness of the cement. Furthermore, if the shoe is one of that type in which the outsole is secured by cement to the margin of the upper, the heavy pressure applied asdescribed serves to bring out clearly on the upper line of the edge of the insole and thus to indicate definitely the limit of that portion of the upper which should be roughened before the outsole is placed on the shoe bottom. The use of the wiping pressure and heat also prepares the margin of the upper well for the roughening operation, so that comparatively little roughening is required. The condition of the bottom of the shoe after the wiping and heating treatment described is illustrated in Fig. 10, where the line of the edge of the insole is indicated at a; Not only are the different layers of upper materials overlying the insole securely cemented to each other and to the insole, but they are also smoothly and firmly compacted upon the shoe bottom so that when the outsole is applied it will lie close to the insole and to that portion of the upper which is adjacent to the edge of the insole. If the outsole is to be cemented on the shoe bottom, the treatment described contributes materially to the security with which it will be held by the cement as well as to fine appearance of the shoe.

If desired, because, for example, of the use of comparatively slow-setting cement, a few temporary fastenings such as tacks t may be inserted near the edge of the upper to assist in holding it in lasted position, in which case the overlaying members 22 and the apron 20 will be forced inwardly over the shoe bottom only so far as to eration the tacks may be bent more or less inwardly, as shown in'F'ig. 9. -Under these conditions the effect of the heat in accelerating the setting of the cement will, in addition to other advantages, eifect an important saving of time in the manufacture of the shoe. It will be understood that after the wiping and pressing treatment the tacks will be removed.

As hereinbefore suggested, treatment in accordance with the method of this invention is not limited in utility to the side portions of the shoe, but may be applied at one or both end portions. It is also to be understood that the invention is not limited to the manufacture of shoes in which the marginal portion of the upper is lasted over the insole in parallel relation to the bottom of the last as herein shown.

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

1. That improvement in methods of makin shoes in which the marginal portion of the upper is secured in lasted relation to an insole by an adhesive, which consists in shaping the upper to the contour of a last and laying its marginal portion inwardly over an insole on the last substantially in lasted relation to the insole and in generally parallel relation to the bottom of the last without the application of heat to the upper and with a wet adhesive adapted to be set by heat between the upper and the insole, and thereafter bringing the overlaid marginal portion of the upper and a previously heated ironing device into contact with each other and by adhesive, which consists in shaping the upper.

to the contour of a last and laying its marginal portion inwardly over an insole on the last in substantially parallel relation to the bottom of the last with an adhesive between the upperand the insole, and thereafter bringing the overlaid marginal portion of the upper and a previously heated ironing device into contact with each other and by use of said device subjecting the marginal portion of the upper to wiping pressure directed inwardly from the edge of the shoe bottom while applying heat thereto to tighten the upper over the last, iron it smoothly upon the insole and insure its firm adherence to the insole by the action of the adhesive.

3. That improvement in methods of making shoes in which the marginal portion of the upper is secured in lasted relation to an insole by an adhesive, which consists in shaping the upper to the contour of a last and, without the application of heat to the upper, laying its marginal portion inwardly over an insole on the last in generally parallel relation to the bottom of the last in locations extending from the toe portion at least substantially as far rearwardly as the shank portion of the shoe with an adhesive between the upper and the insole, and thereafter engaging the marginal portion of the upper thus acted upon at each side of the shoe bottom with a previously heated ironing device and by use of said device wiping the upper inwardly from the edge of the shoe bottom while applying heat to the upper.

4. That improvement in methods of making shoes in which the marginal portion of the upper is secured in lasted relation to an insole by an adhesive, which consists in shaping the upper to the contour of a last and laying its marginal portion inwardly over an insole on the last in position to adhere to the insole, pressing the marginal portion of the upper upon the insole until the adhesive has partially set, then releasing the pressure and applying to the marginal portion of the upper a heated ironing tool, and by use of said tool wiping the upper inwardly from the edge of the shoe bottom'to iron it smoothly upon the insole and tohasten the setting of the adhesive.

5. That improvement in methods of making shoes in which the marginal portion of the upper is secured in lasted relation to an insole by an adhesive, which consists in shaping the upper to the contour of a last and laying its marginal portion inwardly over an insole on the last with a wet adhesive adapted to. be set by heat between the upper and the insole, inserting temporary fastenings near the edge of the upper to assist in holding it in lasted position, and thereafter subjecting the marginal portion of the up per held by the fastenings to pressure and heat to press the upper smoothly upon the insole and hasten the setting-of the adhesive and removing the fastenings.

6. That improvement in'methods of making shoes in which the marginal portion of the upper is secured in lasted relation to an insole by an adhesive, which consists in shaping the upper to the contour of a last and laying-its marginal portion inwardly over an insole on the last in position to adhere to the insole, inserting temporary fastenings near the edge of the upper to assist in holding it in lasted position, thereafter wiping the marginal portion of the upper held by the fastenings inwardly from the edge of the shoe bottom while applying heat thereto to iron it smoothly upon the insole and hasten the setting of the adhesive, and after thus wiping and heating the upper removing the fastenings.

7. That improvement in methods of making shoes in which the marginal portion of the upper is secured in lasted relation to an insole by an adhesive, which consists in shaping the upper to the contour of a last and laying its marginal portion inwardly over an insole on the last without the application of heat to the upper and with a wet adhesive adapted to be set by heat between the upper and the insole, inserting temporary fastenings near the edge of the upper to assist in holding it in lasted position, and thereafter subjecting the marginal. portion of the upper held by the fastenings to wiping pressure and heat to iron it smoothly upon the insole and hasten the setting of the adhesive and removing the fastenings. 7

8. That improvement in methods of making shoes in which the marginal portion of the upper is secured in lasted relation to an insole by an adhesive, which consists in lasting the upper over the opposite sides of a last and laying its marginal portion inwardly over an'insole on the last substantially in lasted position along the forepart and shank portions of the insole with a Wet adhesive adapted to be set by heat between the upper and the insole, and thereafter subjecting the marginal portion of the upper along said forepart and shank portions of the insole to wiping pressure and heat to iron it smoothly upon the insole and insure its firm adherence to the insole by the action of the adhesive.

9. That improvement in methods of making shoes in which the marginal portion of the upper is secured in lasted relation to an insole by the marginal portion of the upper inwardly from the edge of the shoe bottom along said forepart and shank portions of the insole while applying heat thereto to tighten the upper over the last, iron it smoothly upon the insole and hasten the setting of the adhesive.

10. That improvement in methods of making shoes in which the marginal portion of the upper is secured in lasted relation to an insole by cement, which consists in shaping the upper in lasted relation to the opposite sides of a last and to an insole on the last, and thereafter subjecting the cement-coated marginal portion of the upper over the forepart and shank portions of the insole to wiping pressure directed inwardly from the edge of the shoe bottom while applying heat thereto. 7 t

11. That improvement in methods of making shoes in which the marginal portion of the upper is secured in lasted relation to an insole by cement, which consists in lasting the upper over the opposite sides of a last and laying its marginal portion inwardly over an insole on the last along the forepart and shank portions of the insole, and thereafter applying to-the cementcoated marginal portion of the upper along said forepart and shank portions of the insole heated ironing tools shaped to conform to the lengthwise .contour of the shoe bottom and by use of said tools wiping the upper inwardly from the edge of the shoe bottom.

12. That improvement in methods of making shoes in which the marginal portion of the upper is secured in lasted relation to an insole by an adhesive, which consists in lasting the upper over the opposite sides of a last and laying its marginal portion inwardly over an insole on the last in position to adhere to the insole along its forepart and shank portions with a wet adhesive adapted to be set by heat between the upper and the insole, inserting temporary fastenings near the edge of the upper at the opposite sides of the shoe bottom to assist in holding it in lasted position, and thereafter subjecting the marginal portion of the upper along the forepart and shank portions of the shoe bottom to pressure and heat and removing the fastenings.

13. That improvement in methods of making shoes in which the marginal portion of the upper is secured in lasted relation to an insole by an adhesive, which consists in lasting the upper over the opposite sides of a last and laying its marginal portion inwardly over an insole on the last in position to adhere to the insole along its forepart and shank portions, inserting temporary fastenings near the edge of the upper at the opposite sides of the shoe bottom to assist in holding it in lasted position, thereafter wiping the marginal portion of the upper inwardly from the edge of the shoe bottom along said forepart and shank portions while applying heat thereto, and after thus wiping and heating the upper removing the fastenings.

cation of heat to the upper, and thereafter wiping 14. That improvement in methods of making shoes in which the marginal portion of the upper is secured in lasted relation to an insole by an adhesive, which consists in working the upper into conformity to the contour of a last and laying its marginal portion inwardly over an insole on the last substantially in lasted relation to the insole by the use of a flexible apron in engagement with the upper, and thereafter subjecting the marginal portion of the upper to wiping pressure and heat to iron it'smoothly upon the insole and insure its firm adherence to the insole by the action of the adhesive.

15. That improvement in methods of making shoes in which the marginal portion of the upper is secured in lasted relation to an insole by an adhesive, which consists in working the upper into conform ty to the contour of the opposite sides of a last between its toe and heel-end portions and laying its marginal portion at the opposite sides inwardly over an insole on the last in position to adhere to the insole by the use of a flexible apron in engagement with the upper, and thereafter wiping the overlaid marginal portion of the upper inwardly from the edge of the shoe bottom wh le applying heat thereto to iron it smoothly upon the insole, tighten the upper over the last and hasten the setting of the adhesive.

16. That improvement in methods of making shoes in which the marginal portion of the upper is secured in lasted relation to an insole by an adhesive, wh ch consists in working the upper into conformity to the contour of the opposite sides of a last and laying its marginal portion inwardly over an insole on the last in position to adhere to the insole along its forepart and shank portions by the use, of a flexible elastic apron in engagement with the upper, leaving the apron on the shoe until the adhesive has partially set, and thereafter removing the apron and subjecting the marginal portion of the upper to wiping pressure and heat to iron it smoothly upon the insole and hasten the setting of the adhesive.

1'7. That improvement in methods of making shoes in which the marginal portion of the upper is secured in lasted relation to an insole by an adhesive, which consists in working the upper into conformity to the contour of the opposite sides of a last between its toe and heel-end portions and laying its marginal portion at the opposite sides inwardly over an insole on the last in position to adhere to the insole by the, use of a flexible apron in engagement with'the upper,

- inserting temporary fastenings near the edge of the upper at the opposite sides of the shoe bottom to assist in holding it in lasted position, and thereafter subjecting the marginal portion of the upper along the opposite sides of the shoe bottom to pressure and heat and removing the fastenings.

18. That improvement in methods of makin shoes in which the marginal portion of the upper is secured in lasted relation to an insole by an adhesive, which consists in working the'upper into conformity to the contour'of the opposite sides of a last and laying its marginal portion inwardly over an insole on the last in position to adhere to .the insole along its forepart and shank portions by the use of a flexible elastic apron in engagement with the upper, inserting temporaryfastenings near the edge ing it in lasted position, thereafter wiping the marginal portion of the upper inwardly from the edge of the shoe bottom along said forepart and shank portions while applying heat thereto, and

to the bottom of .shoe subjecting the upper of the upper to assist in holdafter thus wiping and heating the upper removing the fastenings.

19. That improvement in methods of making shoes in which an outsole is secured by cement to the margin of an upper lying over an insole on a last, which consists in shaping the upper to the contour of the last and laying its marginal portion inwardly over the insole substantially in lasted relation to the insole in locations between the toe and heel end portions of the shoe without the application of heat to the upper, and. thereafter subjecting the marginal portion of the upper in said locations to wiping pressure directed inwardly from the edge of the insole while applying heat thereto, thereby ironing it substantially free from wrinkles preparatory to the roughening of its surface to receive cement for securing the outsole.

20. That improvement in methods of making shoes in which an outsole is secured by cement to the margin of an upper lying over an insole on a last, which consists in lasting the upper over the opposite sides of the last and laying its marginal portion inwardly over an insole on the last in position to adhere to the insole by the action of cement along the forepart and shank portions of the shoe bottom, and thereafter subjecting the marginal portion of the upper along said forepart and shank portions to wiping pressure directed inwardly from the edge of the insole while applying heat thereto, thereby tightening the upper over the last and insole and accelerating the setting of the cement while also ironing the surface of the upper substantially free from wrinkles preparatory to the roughening of its surface to receive cement for securing the outsole.

21. That improvement in methods of making shoes in which the marginal portion of the upper is secured in lasted relation to an insole by an adhesive, which consists in shaping the upper to the contour 'of a last and laying its marginal portion inwardly over and pressing it upon an insole on the last in substantially parallel relation the last with a wet adhesive adapted to be set by heat between the upper and the insole, completely releasing the marginal portion of the upper from the pressure thus applied after the adhesive has partially set, and thereafter engaging and pressing said marginal portion of the upper with a heated ironing device and by relative movement of said device and the to a wiping action while applying heat thereto to smooth the upper and complete the setting of the adhesive.

22. That improvement in methods of making shoes in which the marginal portion of the upper is secured in lasted relation to an insole by an adhesive, which consists in shaping the upper to the contour of a last and laying its marginal portion inwardly over an insole on the last and pressing it into position to adhere to the insole along the sides of the forepart at the rear of the toe portion, releasing the upper from the pressure thus applied, and thereafter engaging the marginal portion of the upper thus acted upon at each side of the shoe bottom with a heated ironing device and by use of said device wiping the upper inwardly from the edge of the shoe bottom while applying heat thereto. I I

23. That improvement in methods of making shoes in which the marginal portion of the upper is secured in lasted relation to an insole by an adhesive, which consists in lasting the upper over the opposite sides of a last and laying its marginal portion inwardly over an insole on the last in position to adhere to the insole in locations along the sides of the forepart from the toe portion at least substantially as far rearwardly as the ball line without the application of heat to the upper, and thereafter subjecting the marginal portion of the upper in said locations to a wiping action directed inwardly from the edge of the insole while applying heat thereto.

24. That improvement in methods of making shoes in which the marginal portion of the upper is secured in lasted relation to an insole by an adhesive, which consists in working an upper over a last and laying its marginal portion inwardly over an insole on the last in position to adhere to the insole by the use of a flexible elastic apron in engagement with the upper, disengaging said apron from the overlaid margin of the upper, and thereafter subjecting said overlaid-margin to a wiping action directed inwardly fromthe edge of the insole while applying heat thereto.

25. That improvement in methods of making v shoes in which the marginal portion of theupper is secured in lasted relation to an insole by an adhesive, which consists in working an upper over CERTIFICATE Patent No. l, 951, 372.

a last and laying its marginal portion inwardly over an insole on the last in position to adhere to the insole at each side of the forepart by the use of a flexible elastic apron in engagement with the upper, and thereafter engaging the overlaid marginal portion of theupper at each 'side of the forepart with a heated ironing device and by use of said device wiping the upper inwardly from the edge of the insole while applying heat thereto.

26. That improvement in methods of making shoes in which the marginal portion of the upper is secured in lasted relation to an insole by an adhesive, which consists in working an upper over a last and laying its marginal portion inwardly over an insole on the last in position to adhere to the insole by the use of a flexible elastic apron in engagement with the upper, inserting temporary fastenings to assist in holding the upper in lasted position, subjecting the marginal portion of the upper held by said fastenings to pressure and heat, and thereafter removing the fastenings.

CHARLES F. PYM.

OF CORRECTION.

March 20, 1934.

CHARLES F. PYM;

above numbered patent "to" insert be; page 3, line 39, after printed specification of, the

requiring correction as follows:' Page 1, line 10, after "upper" insert the; and line 60, after "to" insert the; and that the said Letters Patent should be read with these correctlons therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 29th day of May, A. o. 1934.

(Sea!) I Bryan M. Battey Acting Commissioner of Patents.

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