US2193198A - Apparatus for facilitating the embossing of perforated shoe parts - Google Patents

Description

March 12, 1940- ca. c. LOUCKS El AL 93,

APPARATUS FOR FACILITATING THE EMBOSSING 0F PERFORATED SHOE PARTS Original Filed Nov. 29, 1937 lnventuri. and EEuTqE' lllL uur: s

Jnhn R.H.W

Fltturnegs.

Patented Mar. 12, 1940 UNITED STATES I APPARATUS FOR FACILITATING THE EM- BOSSING or PERFORATED SHOE PARTS George C. Loucks and John R. H. Ward,

Milwaukee, Wis.

Original, application November 29, 1937, Serial No. 177,046. Divided and this application April 11, 1938, Serial No. 201,465

1- Claim.

This invention appertains to shoes and shoe manufacture, and more particularly to a novel device for facilitating the proper centering of shoe blanks relative to an embossing die, incident to the forming of a ventilated shoe having the appearance of platted leather strips, the application being a division of our original application Serial No.177,0,46, filed November 29, 1937 and which matured into Patent No. 2,118,255 on May 24, 1938.

In the forming of shoe blanks which simulate the appearance of platted leather strips, it is highly essential that the perforated upper blank is positively located relative to the embossing die, and that the embossing die is accurately uided down over the shoe blank.

It is, therefore, one of the salient objects of the present invention to provide a platen or base having upstanding locating pins for extending through certain of the openings in the perforated shoe upper part, so that the .upper part will be held against movement and to further provide guide openings in the embossing die for receiving said pins during the lowering of the die, whereby the die will be accurately guided down over the shoe part, and, thus, correctly emboss the leather relative to the performations in said upper part.

With these and other objects in view, the invention consists in the novel construction, arrangement, and formation of parts, as will be hereinafter more specifically described, claimed, and illustrated in the accompanying drawing, in which drawing: I

Figure 1 is a top plan View of an upper blank after the perforating or hole-cutting operation, with the upper blank positively held relative to the embossing die by locating pins.

Figure 2 is an enlarged, fragmentary sectional 'view taken substantially on the line 22 of Figure 1, looking in the direction of the arrows, showing the locating or guide pins passing through certain of the openings for holding the upper and guiding the embossing die in place.

Figure 3 is a fragmentary, top plan view of the upper blank after the perforating and embossing operations.

Figure 4 is an enlarged, fragmentary, detail sectional view illustrating the upper after the perforations have been made therein and before the embossing operation, with the upper leather reinforced by a fabric lining.

Figure 5 is an enlarged, fragmentary, transverse sectional view through the upper blank after the perforating and embossing operations,

Referring to the drawing in detail, wherein similar reference characters designate corresponding parts throughout the several views, the letter U generally indicates an upper blank, and this blank is cut out of the hide in accordance with ordinary shoe-making practice. 1

The leather upper U can be reinforced, if so desired, by a fabric lining Ill, as clearly shown in Figures 4 and 5, and where this lining is used, the leather and the lining areum'ted together by a suitable adhesive.

After the upper U has been blanked from the hide, the same is perforated with a plurality of square-shaped openings 16. Hollow, square perforating knives (not shown) are utilized for this purpose, and it is to be noted that the squareshaped openings are arranged in equally spaced parallel intersecting rows.

The perforated upper blanks U are now placed on a table or platen l of an embossing device. The table or platen has formed thereon or secured thereto relatively long upstanding guide pins l2. These guide pins are square-shaped in cross-section, so as to snugly fit in certain of 1 the openings l6 and to extend above the upper blank. As illustrated in Figure 1, pairs of spaced guide pins are used at the front, back, and intermediate portions of theupper blank. The embossing die 9 is now brought down over the upper blank U. The die embosses on the outer surface of the upper blank a design II, which takes the form of platted leather strips.

It is essential to the invention to accurately locate the die 8 relative to the intersecting rows of square-shaped openings I6, so that the simulated platted strips will be correctly disposed relative to the openings. Hence, the die 8 has formed therein guide openings 9 for receiving the guide pins l2. Thus, as the die 8 is guided down over the upper blank, the same is positively positioned relative to the openings 12, and lateral shifting movement of the embossing die 8 and the upper blank U is prevented.

By referring toFigures 3 and 5, it can be seen that the embossing provides alternate raised portions l3 and depressed portions l4, and the strap simulations are arranged between the intersecting rows of openings IS, with the openings l6 located at the corners where the stra through certain of the perforations in the leather and beyond the upper face of the leather for positively locating the leather on the platen, and an embossing die having guide openings for receiving the locating and guiding pins and movable toward and away from the platen, the pins and guide openings holding the die in predetermined relation to the perforated design in the leather when the die engages the leather.

GEORGE C. LOUCKS. JOHN R. H. WARD.

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