US2595895A - Method of making insoles having attached tape ribs - Google Patents

Description

y 1952 v. A. SHERBROOK 2,595,895

METHOD OF MAKING INSOLES HAVING ATTACHED TAPE BIBS Filed Oct. 4, 1950 3 Sheets-Sheet l INVENTOR. We 7?? A. \S /EIFBJOO/F MKz L,

y 6, 952 v. A. SHERBROOK 2,595,895

METHOD OF MAKING INSOLES HAVING ATTACHED TAPE RIBS Filed Oct. 4, 1950 5 Sheets-Sheet 2 IN V EN TOR. V/cmfl A. Jame/Poof M y 952 v. A. SHERBROOK 2,595,895

METHOD OF MAKING INSOLES HAVING ATTACHED TAPE RIBS Filed Oct. 4, 1950 s Sheets-Sheet. s

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V/ aP/Q 67/659 500 Patented May 6, 1952 UNITED STATES PATENT OFFICE.

METHOD OF MAKING INSOLES HAVING ATTACHED TAPE RIBS I Victor A. Sherbrook, Upton, Mass.

Application October 4, 1950, Serial No. 188,446

3 Claims. (01. 12 -146) This invention relates to new and improved featherless insoles of maximum flexibility and strength for longer wear and greater wearing comfort even when the shoe incorporating the new insole is new.

The principal object of the invention resides in the provision of a flexible insole having no feather even in the blank and being less in size at the 'forepart than the sole of the shoe or of the bottom of the last to be used and being provided with heel and forepart marks defining the shank, the forepart being reduced and there being a tape secured to the insole from the heel mark, along the shank inset from an edge thereof, around the forepart at the extreme edge, and back along the tioned, the tapes being lip set and cemented to form a strong rib, with no channeling at all in the insole,

Other objects include a reduced forepart either split off or made in two parts, a heel and shank superposed on a thin member of insole form; a cover aiding the erection of the forepart rib, and gem duck strengthening the rib and insole generally.

Other objects and advantages of the invention will appear hereinafter.

Reference is to be had to accompanying drawings in which Fig. 1 is a plan view of an insole blank showing the relation thereof to the last bottom;

Fig. 2 is a view showing the blank reduced in thickness at the forepart;

Fig. 3 is an edge view of Fig. 2;

Fig. 4 is a view showing the addition of the forepart and shank tape;

Fig. 5 is an enlarged section on line 5--5 of Fig.4;

Fig. 6 is a view showing the addition of the separate shank tapes; 1 r

Fig. 7 is an enlarged section on line L-l of "Fig. 6;

addition of the gem duck;

Fig. 12 is an enlarged section on line l2l2 of Fig. 8;

Fig. 13 is an enlarged section on line l3--l3 of Fig.

Fig. 14 is an enlarged section on line I l-M of Fig. 11; a

Fig. 15 is an enlarged view of the toe of the insole showing parts broken away and part in section;

Fig. 16 is an enlarged section on line I6-IB of Fig. 15;

Fig. 17 is a section through a wood last with the new insole construction thereon;

Fig. 18 is a plan view of a modified form havin a two part insole flank, and

Fig. 19 is a section on line l9-I9 of Fig. 18.

Fig. 1 shows an insole blank H] rounded or shaped on the solid line to a size smaller than the insole of a prior art shoe of exactly the same size as shown in dotted lines at ii. The dotted lines also of course show the outline of the last bottom for both the new shoe and the prior art shoe.

The new insole is next scored at the heel as at line 14 which indicates in general the heel breast line of the sole; also a mark I5 is made across the forepart. The marks l4 and IS include the shank of the blank which is preferably beveled at the edges I8 and 20, between the two lines for neater fit of the cover and better insole appearance, as will be explained.

The mark It acts also as a guide by which the length of iorepart reduction is gauged, the next step being to reduce the entire forepart as at 22.

vThe reduction of the iorepart lends flexibility to the insole without loss of strength or wear, but it would not be possible to so reduce the forepart if the old prior art channeling for obtaining the secured rib were to be carried out. This invention completely avoids all channeling and at the same time provides a stronger and more flexible insole.

Next, a long tape 24 is secured flatly to the lank by either lamination or stitching online 26 at the edge of the forepart and on into the shank but inset from the edges therein. This tape starts at mark I4 and runs around the toe and back to the mark, see Fig. 4, the mark indicating to the operator where to start and stop.

The tape itself is folded over lengthwise and cemented to start with, see Fig. 5, and the line 26 runs through the fold 28 or near the fold, so that the threads cannot pull due to fraying of the fabric of which the tape is preferably made in the event line 26 represents stitching.

The next step includes the securing of two separate short fiat lengths of tape as at 30 between the marks. and It and to one side of the tape 24, in the shank area. The fold 32 lies next to fold 28 and in substantially contiguous relation thereto; see Fig. 7. The tapes are cemented and lip set (moved up and toward each other) to flatly conjoin them into a relatively thick, multiple secured rib such as is required at the shank, see Fig. 8, wherein the major part of the tape 24 about the forepart has not been raised up and is still fiat on the blank, but the shank rib has now been made. In this operation the tapes are raised up and firmly pressed together resulting in the conformation shown in Fig. 12.

The cover 34 is cemented to the side of the in so e opposite the tapes. The edges of the cover are folded over and cemented to the tape 24, Figs. 9 and 10, by a device which raises the tape up to conjoin with the cover which helps hold the now made forepart rib upright, see Figs. 13 and 16..

A layer of gem duck 36 is then applied and cemented to the tape 24 throughout and in the forepart and shank, thus strengthening the rib further.

, Figs. 18 and 19 show a modified blank made of two parts 38 and 40 superposed, avoiding the reduction step at 22 but otherwise presenting the same invention as that described.

This invention can be made without any reduction in the forepart at all; and the cover is not a necessity in all of the new insoles, being capable of omission if desired.

In any event the new insole is featherless, and the feather is not removed, it never existed at all in this invention. The invention has the advantages of extreme flexibility of the sole without any loss of strength in any part, the forepart is thin and devoid of channels and will always stay fiat and not gutter or curl at the edges; the absence of feather lends wearing comfort from the very start even when the shoe is new; and the shoe is better made throughout due to close inseaming at the last bottom, better and smoother pulling over on the last bottom edges, which are exposed, see Fig. 1'7; and less bottom filler is needed, adding to flexibility.

This construction is an improvement over the channeled in shank method because a cheaper and lighter leather or like material which is not suited for channeling can be used. This method of making upstanding ribs in the shank is Stronger than channels which are dependent on the leather fibers for strength.

Some of the constructional and functional advantages are apparent from an inspection of Fig. 17 wherein the last is shown at 42, the outer sole at 44, and the welt at 46. The insole edge terminates at 48, but the edge of the last bottom extends well beyond the insole edge as at 50. Hence the upper 52 clearly can and does conform exactly to the last edge and outline; the missing feather cannot curl up; the welt, outersole, and other parts are sewed exactly as always before without the need of new machines; the pulling over operation is simpler to accomplish and is smoother and in exact conformance to the last edge; and the other objects and advantages of the invention are seen to be carried out in a practical manner easy for any shoemaker to understand and follow, once the inventiv concept is presented as above.

Furthermore, this invention has shoe making advantages including the fact that it is much better for and makes easier the automatic toeover wipe. More uniform margins may be maintained because the human skill of channeling is done away with, the edge of the new insole itself guiding the securing of the tapes. There is no guttering so that again the insole and also the outsole will always stay flat; there is a better cushion eifect and more flexibility due to the thin forepart and there is longer wear of the outsole due to more even distribution of weight and pressure over a greater wearing area.

Having thus described my invention and the advantages thereof, I do not wish to be limited to the details herein disclosed otherwise than as set forth in the claims, but what I claim is:

1. Method of making insoles comprising the steps of making a blank smaller in area at the forepart than the sole area of the corresponding last, securing a tape to the blank from approximately the heel breast location in the shank, about the forepart at the edge thereof, and back through the shank area to the heel breast line,

securing a short length of tape at each edge at the shank adjacent the first tape, and securi'rig' the tapes together in upstanding condition to formian inseaming rib heavier at the shank than in the forepart.

2. Method of making insoles comprising the steps of making a blank smaller in area at the forepart than the sole area of the corresponding last, making the forepart thinner than the shank and heel areas of the insole, securing a relatively long tape to the blank from the heel breast location in the shank, along the latter, about the thinner portion of the blank at the forepart, along the edge of the latter, back through the shank area to the heel breast line, securing 'a short length of tape at each edge at the shank adjacent the first tape, and securing the short tapes to the ends of the longer tape in upstanding condition forming an inseaming rib heavier at the shank than at th thinner portion of the blank in the forepart.

3. Method of making insoles comprising the steps of 'making a blank smaller in area at.the forepartthan the sole area of the corresponding ast, securing a tape to the blank from approximately the heel breast location in the shank, about the forepart at the edge thereof, and back through the shank area to the heel breast line, securing a short length of tape at each edge at the shank adjacent the firstltape, securing the tapes together in upstanding condition to form an inseaming rib heavier at the shank than in the forepart, and securing a cover to the blank at the opposite side thereof from the tapes, bending up the edges of the cover into juxtaposition with the tapes, and securing the cover edges to the tapes.

VICTOR. A. SHERBRO OK.

REFERENCES CITED UNITED STATES PATENTS Date Number Name 861,390 Eaton July 30, 1907 1,106,811 Hoar Aug. 11,1914 1,198,101 Brackett Sept. 12, 1916 1,324,390 Fernald et a1 Dec. 9,1919 1,456,695 Jonas May 29, 1923 1,726,019 Frye Aug. 27, 1929 2,070,314 Poole 'Feb. 9, 1937 7 2,368,439 Ayers Jan. 30, 1945 2,465,506 Ayers Mar. 29, 1949 2,571,299 Sherbrook Oct. 16, 1951

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