US1393688A - Sole - Google Patents

Description

M. E. JOHNSON.

' SOLE.

APPLICAHON FILED OCT-30, 1919.

1,393,688. I Patented Oct. 11, 1921.

NKTE STATES PATENT .Fflli.

IIIERTON E. JOHNSON, OF BEVERLY, MASSACHUSETTS, ASSIGNOR TD UNITED SHOE MACHINERY CORPORATION, OF PATERSGN, NEW JEE$EY, A CORPORATION OF NEW JERSEY.

SOLE.

T 0 all whom it may concern:

a citizen of the United States, residing at Beverly, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Soles; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to soles and more particularly to soles ofthe peaked toe type employed in the manufacture of the prevailing styles of pointed toe shoes.

The narrow space at the apex of the channel on a'peaked toe insole, or turn sole, makes it diflicult for the operator of the inseaming machine to force the sole around the channel guide when swinging the sole at the toe. Relief from this condition has been obtained by slitting the channel flap transversely at the point of thetoe, thus permitting it to lift and afiord a freer movement for the channel guide. A machine for producing this slit is disclosed in Letters Patent of the United States to John B. Hadaway No. 1,087 ,57 8, dated February 17, 1914:. lit has been found, however, that the channel guide has a tendency to pass through such a slitinstead of passing beneath it andso beneath the channel flap at the other side of the sole. I

One object of the present invention is to overcome this disadvantage in the sole produced by the toe snipping machine described in said Hadaway patent. To this end, the character of the cut through the channel flap is materially changed and is so shaped and located as to provide for the free swinging of the sole and yet prevent the channel guide from slipping out from beneath the flap.

The machine of said Hadaway patent, for welt insole work, produces a- Vshaped notch in the lip, this notch being centrally located at the tip of the toe. In the later operation of turning and setting the lip, by a machine, for example, of the type disclosed in Letters Patent of the United States to Albert E.

Johnson No. 1,252,848, dated January 1,

1918, the lip at the toe of an insole produced by the machine of the Hadaway patent is badly distorted and misplaced because of the fact that he opposed c n f the tools Specification 01' Letters Patent.

Patented Oct. 11, 1921.

Application filed October 30, 1919. Serial No. 334,399.

engaging the lip and the feeding mechanism engaging the sole exert a continuous forward drag on the lip causing it, being the weaker element, to creep toward the toe at one side and toward the heel at the other.

Another object of the present invention is to provlde an insole fitting which will over come defects in the lip at the point of the toe thus eliminating cripples from the cause referred to. Accordingly it is proposed to so shape and locate the lip cut at the tip of the toe as to compensate for the advance or creeping of the lip during the lip setting operation and thus obtain a properly set lip about the toe.

To the accomplishmentof these objects the invention comprises a sole having the features and characteristics hereinafter described and the method of making it, as particularly pointed out in the appended claims.

The accompanying drawings illustrate the preferred fitting to be used, Figure 1 illutrating the shape and location of the new lip and flap knives which may be incorporated in the machine of said Hadaway pa ent; Fig. 2 illustrating the forepart of a sole blank after having been operated on by the knives shown in Fig. 1; and Fig. 3 illustrating an insole fitted as in Fig. 2 with the lip and channel formed and the lip set.

In the embodiment of the invention. illustrated in the drawings the sole blank. is fitted with two incisions 4: and 6, the former extending through the lip material and the beneath the knives by gages forthat purpose, v

that the knife 8 makes its incision off-center, at the extreme point of the toe, while the knife 10 makes its incision at the rear thereof with the base of its U directed toward the toe. heel toward the toe, the blade 7' of the knife 8 incises the blank substantially onthe median line of the forepart, preferably although not necessarily slightly to the right thereof, and the blade 9 incises to the edge Viewing the sole blank from the of the blank at the left thereof. The heel of the knife 8 shaves the outer edge of the between-substance material. The knife 1Q produces a U-shaped incision 6 centrally of the blank symmetrically placed with relafor the combined channeling and lip setting operation. The result of this operation is illustrated in Fig. 8 wherein it is observed that the channel knife in passing through the U-shaped incision 6 removes the portion of the channel flap which lieswithin the U and forward of the inner boundary 12 of the channel cut at the apex of the channel. This opens up the channel at the narrowest por tion and permits the channel guide of the inseaming machine to pass freely. from one side of the sole to the other. At the same time, because the base of the U-shaped incision 6 does not reach forward to the between-substance, a portion of the channel 7 flap at the apex thereof remains intact and forms a continuous ledge beneath which the channel uide is guided and prevented from leaving t e channel.

In lifting and setting the lip by the machine of the Johnson patent, the lip on the first side of the sole operated on is drawn or crowded toward the toe, this action being indicated at 13 (Fig. 3)'and as a result the straight edge formed on the lip by the blade 9 is thrown somewhat forward (illustrated by dotted line 1%) so that when it has been set it lies substantially on the center of the toe. On the other hand, the second side of the sole operated on has its lip drawn or crowded toward the heel, this action being indicated at 15 (Fig. 3), and consequently the straight edge formed on the lip by the blade 7 is thrown backward somewhat (indicated by dotted line 16), so that when it has been set it also lies substantially on the center of the toe. The action is such that the two edges meet and abut in the center at 17 (Fig. 3) causing the lip to lie smoothly about the toe and thus retaining the desired shape of the lip and maintaining the outline of the toe portion of the shoe when the upper and welt are secured thereto. 1

It is particularly pointed out that the U- shaped cut is a valuable feature in soles whlch are not provided with a lip, for ex ample turn soles or insoles for womens work, hence this feature of the invention is not d e-- pendent on the presence of the V-shaped lip incision. Similarly the lip incision may be employed with other forms of knives for making the channel flap incision. Furthermore, those skilled in the art will understand that in making the sole, in so far as the channel flap incision is concerned, it is immaterial whether the sole is incised before or after the channel is formed.

The particular shape of the flap knife is a matter to be determined by the style of the sole to be operated upon. The flap knife illustrated in Fig. 1 is capable of general use but is especially adapted to medium pointed toes. For extreme peaked toes it is often desirable to employ a flap knife of V- shape, and for turn soles excellent results have been obtained witha flap knife having two parallel blades joined by a blunt V, instead of a semi-circular connection, at their forward ends. It will be observed that all the flap knives for the special types of soles referred to. embody two legs which are joined at one end and, therefore, they all may be defined by the expression of general U form. When this expression occurs in the appended claims it will be understood as inclusive of any type of incision in the channel flap material which produces a rearwardly opening notch in the flap, irrespective of the particular shape of the notch.

The nature and scope ofthe present invention having been indicated and the preferred embodiment of the invention having been specifically described, what is claimed as new, 1s:--

1. A, sole having an incision of general U form through the channel flap material the legs of which intersect the inner edge. of said material, located centrally within the margin at the toe.

2. A sole having an incision of general U form located centrally within the margin at the toe with its heel spaced to the rear of the between-substance material a distance less than the width .ofthe channel flap.

3. Asole having an incision of general U form through, the channel flap material at the apex of the channel, the base of the U belng directed toward the toe of the sole.

4:. A sole provided with a channel flap having a portion of general U form removed from the apex thereof.

-5. A sole provided with a channel flap having a rearwardly opening notch at the apex thereof extending only part way through the width of the flap.

6. An insole having an incision of general V form through the lip material at the tip 'of the toe, one leg thereof substantially coinciding with'the median line of the forepart of the insole and the other leg thereof lylng substantially at right angles to said median line.

7 An insole having an incision of general V form through the lip material at the tip of the toe, its apex abutting the outer edge of the between-substance material, and the lip material between its legs lying to the left, viewing the insole from heel to toe, of the median line of the forepart of the insole.

8. The method of making soles which includes the steps of incising the channel flap material at its apex by a cut of general U- form symmetrically arranged with relation to the median line of the forepart of the sole with its heel directed toward the toe, and producing a channel out, said two outs intersecting to provide a rearwardly opening notch in the channel flap.

9. The method of making insoles comprising incising a sole blank at the tip of the toe by a V-shaped cut having one leg sub stantially on the median line of the forepart of the insole and its other leg extending to the left thereof, viewing the blank from heel to toe, and then edge slitting the blank through said incision and setting the lip thus produced by tools which displace the edges formed by the V-shaped cut in a manner to cause them to abut, after the setting operation, substantially on the center of the toe.

10. The method of making insoles comprising incising a sole blank at the tip of the toe by a right angular out having its heel at the outer edge ofthe between-substance material, one leg substantially on the median line of the forepart of the insole and its other leg extending to the edge of the sole at the left thereof, viewing the blank from heel to toe, then edge slitting the blank through said incision and, while simultaneously setting the lip, drawing or crowding the lip thus produced forward on the first side of the insole thus slit and rearward on the other side of the insole.

lWERTON E. JOHNSON.

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