US2012915A

US2012915A - Shoemaking method

Info

Publication number: US2012915A
Application number: US749526A
Authority: US
Inventors: Maccarone Fred
Original assignee: DELMAC SHOE PROCESS CORP
Current assignee: DELMAC SHOE PROCESS Corp
Priority date: 1933-05-15
Filing date: 1934-10-23
Publication date: 1935-08-27
Anticipated expiration: 1952-08-27

Description

A118? 7, 1935. F. MACCARONE 2,012,915

SHOEMAKING METHOD Original Filed May 15, 1933 3 Sheets-Sheet 1 cgmykxiwToR A'ITOR EYS Aug. 27, 1935. F. MACCARONE 2,012,915

' HOEMAKING METHOD Original Filed May 15, 1933 3 Sheets-Sheet 2 762 Ml/4 I 5;

56 VENTOR ATT ZNEYS Aug. 27, 1935. F. MACCARONE SHOE'MAKING METHOD Original Filed May 15, 1933 3 Sheets-Sheet 3 VENTOR ATTO NEYS Patented Au 21, 1935 UNlTEl) ISTATE PATENT OFFICE Fred Maccarone, Brooklyn, Y., assignor to Del,- Mac Shoe Process Corporation, New York, N. Y.

Original application May 15,1933, Serial No.

Divided and this application October 23, 1934, Serial No. 749,526. In'Canada April My present invention relates to shoe making and is a divisionof matter disclosed in my copendingapplication serial No. 671,109 filed May 15, 1933. T

v A principal object of my invention is to provide an improved and more economical method of pro-v ducingan outsole and a complementary insole therefor, whereby the insole and outsole portions of the shoe are patterned and sized at-the same time from a single piece of sole material to insure that the insole and outsole portions are of relatively proper shapes and sizes.

A further object isto provide an improved and simplified method of making shoes of the type originally taught in my United States Patent No. 1,569,823, wherein an insole, to which the upper is afilxed, includes an integral heel portion, a shank portion and a ball portion having a central opening therein defining a continuous marginal rand.

extending from the front of one side of the shank around the toe and to the front'of the opposite side of the shank to afford means for initially af-'- fixing the upper to'the insole, and an outsole is provided having a marginal depression conformf a piece of sole material clampedthereagainst and ing to the v rand for receiving the sanie with'the upper attached thereto, whereby the central por--' tion of the inner face. of the outsole is-disposed flush with the upper surface of the rand.

Referring to the drawings: Figure 1 is a planview of aacombinationpattern or template and cutting die for rounding an outsole and initially forming an insole for usev therewith.

Figure 2 is a cross sectional view on a larger scale of the pattern shown in Figure 1, having illustrates the sole rounding operation as well as the initial insole forming operation.

Figure 3 is a fragmental view similar to Figure 2, illustrating a modification of the combination pattern and die.

Figure 4 is a plan view of the roundedsole showing incisions therein cut ,by the pattern blades defining an insole. Figurefi is an enlarged section taken on line 55'of Figure 4.

11 Claims. (01. 12-146) sole portion.

' the sole during the splitting operation illustratwith the upper lasted and secured thereto. l

Figure 13 is a longitudinal section taken thru.

the insole and portions of the attached upper.

Figure 14 is a longitudinal section illustrating the ball tread portion of the shoe with the outsole assembled thereto, and

Figure 15 is a side elevation of a'completed shoe, shown partly in section to reveal the finished relationship of the sole portions.

In carrying out my present invention I prefer to first inclse the sole material todefine a'n'insole portion of suitable size, thickness and proportions, and then to round the outsoleir'om the same piece of material in-relation to-theinsole thiis defined.

To. accomplish this I may employ a pattern or a template, as shown in Figure 1, which comprises a-body portion 20 and side and end portions 2i 0 and 21, between which I removably securethin and flexible. cutting blades 2222 by'means of countersunkscrews '23' 23 etc. The blades 22 are positioned and arranged to extend outwardly Figure 6 is a plan-view of the female portion of a die employed to centrally depress the ballportionof the rounded and incised sole which is shown lying thereon. I Figure '7. is a cross sectional view taken on line "l-- 'l of Figure 6 and illustrates, on a larger scale,

thelball portion of the sole depressed between themale and female d ie portions.

Figure 8 is a longitudinal sectional view illus-J ,flOlXl the face of the patterna distance corresponding. to the thickness of the insole to be provided and ar'e'contouredin conformity with the sole portion of the last on which the shoe is to be assembled. 1.

As indicated in the drawings, it is usually not necessary that thelfull outline of the insole be incised in the sole material or that the blades 22 extend to accomplish that purpose inasmuch as the insole ordinarily conforms in size and shape tothe outsole. over the shank and forward portions of the li'eel and may be formed with the outsole in the sole rounding operation hereafter tobe described.

In all; other respects the pattern is of the usual type heretoforeemployed and is provided with holes therethru at 24 and 24 to receive the positioning pins 25-25 of a conventional sole rounding machine, fragmental supporting'parts of which are indicated at. 26 in Figures 2 and 3. When the pattern has been positioned on the ing divisions will comprise two sole portions of result.

sole rounding machine, a piece of sole material 21, of uniform thickness, is laid over the pattern and rests upon the cutting edges of the blades 22, whereupon the clamp 28 of the rounding machine is forced down upon the material, causing the blades 22 to cut into the material and firmly holding the. material against the face of the pattern during the rounding operation performed by the knife 29, as indicated in Figures Land 2. The rounded sole 30 is then taken from, the machine and appears with incisions therein as indicated at 32-32 in Figures 4 and 5.

As illustrated in Figure 3, the blades 22 may be made to extend from both faces of the pattern so that alternate faces thereof may be employed to form the sole portions of a mated pair of shoes. e

Although I have found the foregoing method of producing the rounded and incised sole 30 economical and otherwise of advantage, it will be understood that the sole as it appears in Figures 4 and 5 may be provided in other ways than that above described for the purposes of carrying out the further operations of my improved method, and that the sole may first be rounded and'subsequently incised to define the insole portion if desired.

From the description thus far, it will be apparent that if the sole 30 were now to be split within the depth of the incisions 32, the resultdifferent sizes and proportions suitable for use as insole and outsole portions, respectively, pf a shoe, and that waste marginal portions corresponding to the material lying outside of the incisions and within the depth thereof will also Before performing such splitting operation,

however, I prefer to infiex or depress the ceri- 'opposite side of the shank.

tral ball tread portion of'the rounded and incised sole30 a distance somewhat greater than the depth of the incisions 32. This I accomplish by pressing the sole between the male and female elements, 33 and 34 respectively, of a swage or pressing die, as illustrated in Figure 7.

After removal from the pressing die, the sole is reenforced by'a perforate backing strip 36 (see Figure ll), which is formed to complement thei depressed portion of the sole and is preferably made of a durable and somewhat flexible composition material. The sole thus backed up, is, then passed between the rollers 31-31 of a conventionalleather splitting machine, the splitting blade 38 of which is positioned to out within the depth of the incisions32 and above the bot tom of the depressed area 35, so that when the sole has been split its full-length, an insole portion 39, perforate centrally of its ball tread portion, and ah outsole portion 40, is provided. Waste marginal portions 4| also result from this operation, as will be readily understood.

The insole 39, formed as above, comprises an integral heel portion, a shank portion and a ball portion, the said ball portion having'a central opening therein defining a continuous marginal rand 39'- extending from the front of oneside of the shank around the toe and to the front of the The insole 39 is next lasted to the upper 42 of the shoe to which itis secured by any of such special adhesives as are }well-known in this art, or by other suitable means, preliminary to which a patch 43 may be removably pasted to cover the perforate portion of the insole.

The outsole 40 is then placed in position over the lasted insole and the depressed portion 35 thereof is forced back into its original normal condition, as illustrated in Figure 14. In this manner a marginal depression 40' is defined on the inner side of the outsole which conforms to the rand 39' and receives the same with the upper attached thereto, whereby the central portion 35 of the inner face of the outsole is disposed flush with the upper surface of the rand.

The remaining steps necessary to complete the shoe are the usual ones consisting in removing the patch 43, assembling the sole lining 50 and affixing a heel 5|.

Many modifications in the method andmeans here taught will become apparent from this disclosure to those skilled in the art to which this invention relates and Idesire, therefore, to have the foregoing considered merely illustrative of my invention as defined in the here appended claims:'

1. In shoe making, the method of forming an outsole and a complementary insole from a single piece of material by incising the materialwith cuts defining margins of an insole, said cuts extending to a depth corresponding to the thickness of the insole desired, rounding an outsole from said material in relation to the insole thus defined, then depressing the-sole over a central area of the ball portion thereof, then splitting the sole above the depressed area and within the depth of saidcuts to obtain an insole therefrom, and then restoring the sole to its normal undepressed condition; the sole thus provided having a ball portion centrally elevated in thickness and the insole thus formed having an opening in the ball portion thereof to receive the elevated portions of said sole.

7 2. In shoe making methods, that improvement which includes incising a piece of sole material with cuts defining margins of an insole, said cuts extending to a depth corresponding to the thickness of the insole desired, then rounding an outsole from said material in relation to the insole thus defined, depressing the sole over a central area of the ball portion thereof, splitting the sole above the depressed area and within the depth of said cuts to provide a perforate insole and an outsole, lasting a shoe upper to the insole in secured relation, restoring the outsole to its normal undepressed condition and replacing it in its original relation to the insole and securing it thereto and to the secured portions of the upper, and attaching a heel to the outsole.

3'. In shoe making, the method of forming an outsole and a complementary insole therefor by first forming a rounded sole with incisions cut therein to define outer margins of an insole, said incisions extending. to a depth corresponding to the thickness of the insole desired, and then splitting the sole within the, depth of said incisions to obtain an insole therefrom.

4. In shoe making, the method of forming an 5. In shoe making, the method of providing an outsole and a complementary insole therefor which consists in first forming a rounded sole with incisions cut therein to define margins of an insole, depressing the sole material over a central area of the ball portion thereof, then 75 splitting the sole above the depressed area and within the depth of said incisions to obtain a perforate insole therefrom, and then restoring the sole material to its normal undepressed condition.

6. In shoe making, the method of providing an outsole and a complementary insole therefor which consists in forming a full rounded sole with incisions cut therein to define margins of an insole, temporarily depressing the sole material over a central area of the ball portion thereof, then, while the sole is thus depressed, splitting the sole above the depressed area and within the depth of said incisions toobtain a perforate insole therefrom.

'7.'A method of manufacturing an insole and outsole from a single piece of sole leather which includes providing a sole leather unit, forming a cut depthwise of said unit and in the face thereof opposite the grain side and parallel with and spaced inwardly from the edge line of the outsole when rounded, and thereafter splitting such unit to provide insole and outsole portions,

with said out defining the edge of the insole portion.

8. A method of manufacturing an insole and outsole from a single piece of sole leather which includes providing a sole leather unit having the combined thickness of an insole and outsole, forming a cut depthwise of said unit toward the gram side for a depth substantially equal to said insole thickness and parallelwith and spaced inwardly from the edge line of the outsole when rounded, and thereafter splitting such unit to provide insole and outsole portions, with said cut defining the edge of the insole portion.

9. A method of forming insoles and outsoles whichjncludes utilizing a sole leather unit having the combined thickness of an insole and outsole, forming in one'face thereof a slit of a depth substantially equal to the insole thickness and defining the finished edge of the latter and thereafter splitting said sole unit along the bottom of said slit to provide insole and outsole portions and to detach from said unit those portions of the inner sole located outwardly from said slit.

10. A method of manufacturing an insole and outsole from a single piece of sole leather which includes providing a sole leather unit, forming a cut depthwise of said unit and in the face there- I of opposite the grain side and parallel with and spaced inwardly from the edge line of the outsole when rounded, rounding said unit to the shape of the outsole, and splitting such unit to provide insole and outsole portions, with said out defining the edge of the insole portion.

11. An apparatus of the character described including in combination an outsole pattern, a trimming means cooperating therewith adapted to be actuated to round an outsole from a sole leather blank, a clamp for retaining said blank in association with such pattern, and cutting means forming a part of said apparatus and acting upon movement of said clamp to hold the sole blank with respect to said pattern to form a cut in such blank defining an insole edge.

FRED MACCARONE.