US1363199A - Lasting device - Google Patents

Description

S. STRAUSS.

LAST [N6 DEVICE.

APPLICATION FILED FEB.21.1917- RENEWED MAY 29.1920.

Patented Dec. 21, 1920.

UNITED PATENT OFFICE.

SAMUEL STRAUSS, OF LOS ANGELES, CALIFORNIA.

LASTIN G DEVICE.

21, 1917, Serial No. 150,029.

To all whom it may concern.

Be it known that I, SAMUEL STRAUSS, a citizen oi the United States, residing at Los Angeles, in the county of Los Angeles and State oi? California, have invented a new and useful Lasting Device, of which the following a specification. Y

This present invention is divided out of my prior application for patent for shoe and method oi making the same, filed July 12, 1915, SEYltll N0. 39ers.

An object of this invention is to eifect a saving in the number of dies and lasts required to manufacture a line of shoes of different styles and sizes.

Another object is to maximize the ease of sewing the sole and upper together.

Another object is to effect the sewing in a way that will insure that the stitches are made in a path conforming to the shape of the last.

Other objects and advantages will appear in the subjoincd detail description.

The accompanying drawings illustrate the invention.

Figure 1 is a longitudinal mid section of a shoe upper, sole and last illustrating the basting operation, the basting ring and the newly invented lasting collar also being shown.

Fig. 2 is a longitudinal mid section of the upper, sole and. last with the lasting collar in place and the basting ring removed, the upper and sole being stitched together.

Fig. is a longitudinal mid section of the completed shoe.

Fig. 1 is a plan view of the shaper or lasting collar shown in Figs. 1 and 2.

A shoe upper indicated at 1 will be formed by a suitable method such, for instance, as that disclosed in my application for patent tor shoe and method o'l making the same, tiled July 12, 1915, Serial No. 39,248.

A piece of sole leather 2 will be fastened by nails 3, or the equivalent, to a last 1 of wood or other suitable material, and said last will be inserted in the upper 1 with the sole resting in contact or substantially in contact with the outturned Flange 5 ofthe upper as in Fig. 1.

Then a shaper or lasting collar 6 of hard fiber or any other suitable material will be placed around the upper 1 and in contact with the upper surface of the flange 5, and basting ring 7, which may be of metal or Renewed May 29, 1920.

Specification of Letters Patent. Patented Dec, 21, 1920, Original application filed July 12, 1915, Serial No. 39,248.

Divided and this application filed February Serial No. 385,385.

other suitable material, will be placed around the upper and against the lasting collar as in Fig. 1.

The pressure ring 7 is connected by any suitable means to any suitable source of power and in the instance shown in Fig. 1 said means comprises links 8 hinged at 9 to the ring and provided with straps 10 which may be pulled upon by the operator to produce the desired amount of pressure of the ring 7 against the lasting collar.

The lasting collar 6 .gives the exact size to the shoe, and several such collars of different sizes are used with a single size of last, the last only giving the approximate size to the shoe.

Pressure is applied to the ring 7 to force the collar (3 toward the sole 2 so as to draw the lower part of the upper toward the last to give said upper the exact shape and size determined by the size of said collar and to securely hold the sole and flange 5 in close contact with one another, and said sole, flange and collar then be basted together by nails 11 or equivalent driven through holes 12 extending through the ring 7, as in Fig. 1, said holes being of larger diameter than the nails.

Then the basting ring 7 will be removed, the nails 11 securely holding the sole and upper together. Then the upper 1 with the last 4 therein and the lasting collar 6 fastened in place will be sewed either by hand or by machine so as to form stitches 13 entirely around the lower part of: the upper through the flange 5 and the sole 2 between the lasting collar 6 and the portion of the upper that is adjacent the flange so as to fasten the sole 2 and upper firmly together as in Fig. 2.

Then the top portion 14: of the upper will be cut away to form the opening 15 as in Fig. 3 and said upper will be slit at 16 from said opening toward the toe, and then the lasting collar 6 will be ripped oil and the flange 5 and sole 2 will be trimmed in the usual way by any suitable means, suiiicient of the flange being allowed to remain on the upper to securely hold the stitches 13 to form a tight joint between the upper and the sole and to form the so-termed extension. The last 41 is then removed through the opening 15 and slit 16. If desired a heel 17 may be added. This completes the shoe shown at a, Fig. 3.

From the foregoing it is seen that several uppers of, for instance, sizes Nos. Three, Four and Five, can be formed by dies and a last of No. Four size and lasting collars of Nos. Three, Four and Five sizes, thus, for instance, saving the expense of two dies and two lasts. Also any shape of shoe can be produced irrespective of the style of die used, for the shoe can be made to conform to the desired style of last by employment of the lasting collar 26. It is noted that the soling, sewing and trimming operations may be effected while the upper is still wet, the lasting collar 16 and flange 5 holding the upper in shape while said operations are being made, thereby minimizing the number of lasts necessary to use in the manufacture of a given number of shoes, at least fifty per cent. being saved in the number of lasts required as it is not necessary to wait until the uppers are dry before releasing the lasts therefrom. It is obvious from this thatby the employment of the novel lasting collar shoes .may be produced in much less time than heretofore.

The lasting collar 16 may be used over and overagain and is reversible so as to be adapted for right and left shoes and said collar, in the operation of sewing the sole 2 to the upper, guides the sewing needle so as to maximize the ease of sewing and greatly facilitate forming the stitches in a path conforming to the shape of the last.

I claim:

1. The combination with a shoe last, of a relatively thin perforated collar of some What larger size than the last to hold the upper of the shoe in shape while the shoe is being soled, the opening in the collar being sufficiently large to surround the shoe on the last in a plane near the bottom of the last and the plane of the collar being substantially parallel with the bottom of the last.

2. The lasting device described comprising a relatively thin fiat perforated collar of stiff material adapted to surround the upper of the shoe near the bottom of the last and form a guide for stitching the sole and upper together, the plane of the collar being substantially parallel with the plane of the last bottom.

3. The combination with a shoe last, of a relatively thin perforated collar, and means to produce relative movement between the last and collar so that the material to be lasted will be made to substantially conform with the last.

l In combination, a relatively thin collar, a perforated basting ring of substantially the same size as the collar, and means to force the basting ring toward the collar, the perforations in the ring being sufficiently large to admit of the driving therethrough of basting nails.

Signed at Los Angeles, California, this 24th day of January, 1917.

SAMUEL STRAUSS.

Witnesses GEORGE H. HlLns, Trros. L. CAMPBELL.

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