US2470942A - Shoe welt - Google Patents

Description

E. R. OUIMET May 24, 1949. 7

SHOE WELT Filed Oct. 23, 1946 Patented May 24. 1949 UNITED STATES PATENT OFFICE SHOE WELT Emil R. ouimehBroekton, Mass.

Application October 23, 1946, Serial No. 705,065

3 Claims.

This invention relates to double thick welting.

One object of the invention is to make a welt of this type in which the stock may be used with a minimum of waste and of manufacturing operations.

When the welt is to be made of leather, the strips of which it is made are cemented together with their flesh faces in contact. This permits secure attachment of these parts together without the necessity of roughing the surfaces, which not only requires an additional operation, but also results in loss of stock material.

For a complete understanding of this invention, reference may be had to the accompanying drawing in which Figure 1 is a perspective view of a blank from which the welt may be made, showing the cut by which it is divided into two strips which are superposed on each other to form the welt.

Figure 2 is a perspective view showing the two strips of Figure 1 cemented together.

Figure 3 is a transverse sectional view through the strips of Figure 2 showing the inner margin of the wider strip being bent down to complete the welt.

Figure 4 is a detail sectional view taken through the outer edge portion of a shoe showing the welt of Figure 3 employed therein.

Referring to Figure 1 of the drawings, a substantially rectangular blank I, which may well be of leather, is cut longitudinally along a diagonal at 2 to form a pair of strips 3 and 4. Either before or after this cutting of the blank into two strips, the grain face of the portion 4 is provided with a longitudinal groove 5. This may well extend substantially a third of the thickness of the blank and is intended to relieve this face of the material to facilitate bending in the further manufacture or attachment of the welt, as will later appear.

The strip 4 is substantially wider than the strip 3 and terminates in one beveled side edge 2. The narrower strip 3 also has a similarly beveled edge 6. The narrower strip 3 is reversed so as to present its wider flesh face 1 upwardly, and this flesh face I is then cemented to the flesh face 8, which is the narrower face of the wider strip 4.

The perpendicular edge faces 9 and ll) of the strips ll and 3 may well be arranged in alinement with each other, and this brings the beveled face 6 of the lower narrower strip substantially parallel to the beveled face 2 of the strip 4, being outwardly offset therefrom so as to bring the inner adjacent edge of the face I substantially beneath Figure 2.

Either as a preliminary operation, or when the welt is being incorporated in a shoe, the widthwise portion of the strip 4 from about the center of the groove 5 to the beveled edge is then bent downwardly so as to bring the beveled edge 5 substantially into the plane of the lower narrower face 15 of the narrower strip 3. In Figure 3 this bending operation is shown as preliminary and performed between the flat faced roll I I and the roll 12, which has a pair of tapered face portions I 3 and M for engagement with the portion of the strip 4 which extends beyond the beveled edge 6 of the narrower strip and a portion of the surface formed by the groove 5. The cutting of this groove 5 relieves the material of the welt strip locally so that it may be bent readily into the desired position shown in Figure 3. This brings the extended portion of the wider strip 4 substantially opposite to the beveled face 6 of the narrower strip, defining therewith a longitudinally extending notch or groove l1 within which may lie the inseam stitching l8 (see Figure 4), which is employed to secure the welt to the upper materials I!) and 20, and to the inseamreceiving rib 2| of a welt innersole 22. Not only does the formation of the groove 5 relieve the flesh face of that portion of the strip which is to be bent to final form, but it also tends to shape the surface of the welt which engages the upper member l9 to the general ogee contour of the upper opposite to the innersole so that tight engagement of the welt against the upper is insured.

It will be noted that the flesh faces of the two strips are cemented together, this avoiding the necessity of roughing the surfaces which would be required were one or more grain faces to be cemented. This not only avoids the roughing operation, but it avoids the waste of welt material which would be produced by the roughing operation. The only waste material formed in the production of this welt is the small amount removed in forming the groove 5.

In the finished shoe the grain face of the strip 4 is presented upwardly where it is exposed in the finished shoe, the grain face being capable of receiving a better finish than can the flesh face. The welt is secured to the outersole 25 by the usual outersole stitching 26.

It will also be noted that the welt may be made from a single blank strip of rectangular cross section so that it may be readily formed up from the leather stock.

2. A welt comprising a pair of superposed leather strips cemented together in face to face relation with their flesh faces in mutual contact,

the upper and wider of said strips extend-ingzinwardly and downwardly beyond the adjacentedge of the lower and narrower strip and defining with said adjacent edge an inseam-receiving groove,

said upper strip having a groove in the grain face of said inwardly and downwardly extending portion.

in its upper face.

3. A welt comprising a pair of superposed strips cemented together in face to face relation, each strip having its inner edge face beveled downwardly and outwardly, the upper and wider of said strips extending inwardly and downwardly beyond the edge of the lower narrower strip and with its beveled edge substantially in the plane of the lower face of said narrower strip, said inwardly and downwardly extending portion defining Wfth'the adjacent edgeof said narrower strip an inseam-receiving groove and having a groove Eli/[IL R. OUIMET.

REFERENCES CITED Thefollowing references are of record in the fileot this patent:

UNITED STATES PATENTS Number Name Date 1,632,768 Dvilnsky June 14, 1927 2,414,249. Vizardv,.. Jan. 14, 1947

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