US2019459A - Shoemaking method - Google Patents

Description

Oct. 29, 1935. F. MACCARONE 2,

SHOEMAKING METHOD Filed March 15, 1934 2 Sheets-Sheet 1 INVENTOR Efid Maccarone BY W+W A TORNEYS 0 29, 1935. F. MACCARONE 2,019,459

SHOEMAKING METHOD Filed March 15, 1934 2 Sheets-Sheet 2 INVENTOR TTORNEYS Patented Oct. 29, 1935 SHOEMAKING METHOD Fred Maccarone, Brooklyn, N. Y., assignor to Del- I Mac Shoe Process Corporation, New York, N. Y.

Application March 15,

3 Claims.

My invention relates to shoes of the type known as cemented shoes in which an upper is lasted and secured to a light insole member by means of adhesive, and an outsole member is thereafter cemented to the insole.

Heretofore in making such shoes it has been the practice temporarily to secure the upper as it is pulled over the last by means of a large number of tacks extending thru the marginal portions of the upper and the insole and into the last for the purpose of holding the upper in proper lasted position until the adhesive cement sets ,to permanently bond the upper to the insole. This practice has several disadvantages, principal among which are that the large number of tacks used create perforations in the upper and insole which weaken the shoe structure, and that the extension of the tacks into the last cause the last to become pitted and soon worn out.

A principal object of my invention is to provide an improved method of making side lasted shoes in which the insole member is too frail to satisfactorily support an integral channel leaf or lip, and to obviate the necessity of channeling or otherwise mutilating the insole member of the shoe in order to prepare it for the side lasting operations.

Another principal object of my invention is to provide an improved method of making cemented shoes in which a temporary artificial lip. is employed to which the upper may be amxed and held in lasted position while the cement is congealing, thereby el minating the large plurality of obiectional tacks.

A further object is to confine and control the flow of the fluid cement deposited on the margins of the insole for permanently affixing the upper thereto. A further object 'is' to provide an improved method of making cemented shoes which will be more economical in practice and which will obtain a neater, cleaner and more finished shoe. Other and further objects will appear from the following specification.

My improved method has particular advantage when employed to make cemented shoes having insoles perforate over the central area of the ball portion, as taught in my Patent No. 1,569,823 of January 12, 1926 and as further illustrated in my copending applications Nos. 671,109 and 703,237 filed May 15, 1933 and December 20, 1933, respectively. I therefore have illustrated this type of construction in the accompanying drawings, in which:

Figure 1 is a plan view of an insole, perforate 1934, Serial No. 715,583

over the central area of the ball portion, and positioned on an appropriate last.

Figure 2 is a view similar to Figure 1, showing means for reinforcing the perforate insole and for forming an artificial lip and a channel adjacent the ball and shank margins of the insole.

Figure 3 is a partial section, taken on line 8-3 of Figure 2.

Figure 4 is a similar section showing the upper temporarily stapled to the lip. 10

Figure 5 is a similar view illustrating the manner in which the upper is trimmed away together with the lip to which it is secured.

Figure 6 illustrates the removal of the remainder of the reinforcing means.

Figure '7 illustrates the finished sole construction, and

Figure 8 is an elevational view of the finished shoe from which a portion has been broken away to disclose the neat finished relationship of the 20 assembled insole, upper and outsole.

In carrying out my invention, I position the insole Ill on an appropriate last H and attach the insole and a reinforcement l2 to the last by means of a few spaced tacks i3l3 etc. The reinforce- 25 ment is formed as shown inFigure 2, and comprises, preferably, a layer of strong fabric, such as canvas. If desired, the reinforcement may be temporarily pasted in position on the insole before the insole is positioned on the last. The 30 edges of the reinforcement are turned up substantially perpendicular to the insole to form a lip or flange It which extends inside of and in conformity with the side edges of the shank, ball and toe portions of the insole. When so pom-- tioned a feather I5 is formed between the lip It and the edge of the insole.

When employed in making shoes having perforate insoles, as illustrated, the piece I2 serves valuably to reinforce the insole and prevent 4 stretching thereof. in the lasting operation, and obviates the necessity of the patch usually pasted on the inner side of the insole for that purpose;

'An adhesive cement of the appropriate variety is next applied to the surface of the insole upon the feather l5. In the application of the adhesive, and thereafter, the lip It serves eflectual-- 1y to dam the cement from flowing over the surfaces of the insole where it is not desired and i an appreciable amount of the cement attaches to the surface of the lip. I

The edges of the upper l6 are then pulled over the last onto the feather l5 and are attached to the lip or flange M by means of a plurality of staples l'l-l'l etc., whereby the upper is held in I5 lasted relation to the insole during the time required for the cement to set. When the cement has congealed sufliciently to permanently bond the upper to the insole, the lip l4 and the attached edges of the upper are cut off below the staples l'l, thereby trimming the upper, as illustrated in Figure 5; whereupon the tacks I3 and the reinforcing layer l2 are removed, as illustrated in Figure 6.

I prefer to last the upper to the insole over the heel portion of the shoe by the usual bed lasting operations because of the counter construction of the shoe and, where the shoe is of box toe construction, I also prefer to follow conventional and well-known methods of lasting over the t e area.

When the upper is completely assembled upon the insole, an outsole I8 is positioned over the insole and the overlying trimmed edge portions of the upper and permanently aflixed by cement, stitching or other means, as illustrated in Figure 7, and the further operations necessary to complete the shoe may be performed in the usual manner.

Having thus described my invention, I claim:

1. In methods of making shoes in which an upper is cemented in lasted relation to an insole skeletonized at the ball portion thereof, that improvement which includes: temporarily aflixing a lasting device over the skeletonized area of the insole and intermediate the insole margins, said device comprising a layer of. reinforcing material; erecting marginal edges of the device to form an artificial lip and to define a marginal feather;

secured thereto. 5

2. In methods of making shoes in which an upper is cemented to an insole skeletonized at the ball portion thereof, that improvement which. includes: applying a reinforcement over the skeletonized area of the insole and only securing; m

it thereto inwardly of the margins of both the insole and the reinforcement, whereby the edges of the reinforcement are free; applying cement to the insole margins; securing an edge portion of the upper to the free edges of the reinforcement and against said cement; and, after the cement has congealed, removing the entire reinforcement and the portions of the upper secured thereto.

"3. In methods of making shoes in which an upper is cemented to an insole skeletonized at the ball portion thereof, that improvement which includes: applying a reinforcement over the skeletonized forepart of the insole and only securing it thereto inwardly of the margins of both the insole and the reinforcement, whereby the edges of the reinforcement are free; applying cement to the insole margins; securing an edge portion of the upper to the free edges of the reinforcement and against said cement; and, after the cement has set, removingthe entire reinforcement and the portions of the upper secured thereto.

FRED MACCARONE.

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