US1109760A - Insole. - Google Patents

Description

A. E. JOHNSON.

INSOLE.

APPLICATION FILED JAI4 .3,1912.

Patented Sept, 8, 1914 erounaisr.rns

ALBERT E. JOHNSON, F BEVERLY. MASSAPHUSETTS.

rarnnrrnrr .SSIGNOR TO UNITED H0 MACHINERY COMPANY, OF PATERSON, Iii-3W" JERSEY, A CORPGIRATIOII OF NEW JERSEY.

INSOLE.

Specification of Letters Patent.

Application filed January 3, 1912. Serial No. 669,9125.

f5 of llrinssachusetts, havejinventerl certain new ancl useful Improvements in Insoles; and i herebydeclare thefollon ng to be a. full, clear, and exact descriptioiiof the invention, such as will enable othensskillcd in 10 the art to Which-it appertains to nuikeancl use the same. a This nvent on relates to an improvement in insoles for use intl e manufacture of welt shoes, and more particularly to that class .of reinforced insoles known as Economy. insoles the single lippecl type of which is illustrated and. described in the present inrentors United States Letters Patent 190.656342, dated August 28, 1960, and the double lipperl type of which is illus inlthc present inven- Lctters Patent No. 2, 1907. @Thesingle tratecl and described tors United States 84-92%, elated April lippcrl type is prepared for reinfo'rcing, that is, the operation of applying the reinforce to the insole, tronra sole shaped blank, by cutting one face of the blank withinits erl'ge to'form a flap parallel to the erige. 'The flap is turned up atright angles to the cut face of the blank to form an upright r'ib along the shank and forepart of the insole. As thus prepared, a sheet of reinforcing material is stuck roughly on the blanleand the blank and sheet are then passed through a reintorcm z machine.

It i'asjfouncl, however, that a flap turned to the position shown in Letters Patent No. 656,8{l2, has a tendency to (lroop toward its original position over the channel, espe- 40 eiailly when Working the poorer grades of stool; used for reinforced insoles. When this happened in preliminarily applying the sticky sheet of material to the sole. it adjhered to the outer surface of the fiap. Un-

5&5 cler such "conditionsv the tools of the rein- "forcing machine are prevented from working the reinforce down into ts, proper pose tion in the angle between the channel and the inner surface of the flap, as will readily'be recognized by thoseslrilled in the. art.

The double lippecl type overcame the objection first referred to as the uniting of the flap'to a marginal Elipcut parallel thereto held it securely in its upright position,

preventing an exposure of its outer "stir pressure, or stitches.

face to the sticky surface of the reinforce, and permitting a proper action or the reinforcing machine on the sole. In this type after the fiap and lip have been turnectu' at right angles to the lippecl face of the blank they are united either by cement we Substantially four steps aretaken in preparing for 'rinierc 'ing the double lipperl type. of

scrihecl in said Letters Patent No. Sal-9,245, narnely; the step of edge slitting fli'fli channehng, the step of lipjanfci flap turning. the step of cement applying. and the step of? pressure applyin Theme of cement acids materially to the cost of the insole and he operation of cement applying ini olves use of special apparatus which must he fully employcrlto prevent the rm 1 the insole. in certain grades usecl, such as splits cement he founrl to be inciiectireto prevent ing or partial return of the flap to its:

tion against the sole and for this reasons: row of stitching is now generally us-tl. to

involves the use ot special machinery.

The object oithe present inventionie to produce a novel Economy insole. oi cit the single lippetl or double Zipped type. which may .be properly prepared for rein forcing in aifeccumuicv manner. it will be obvious to those skilled in the art, however, that the invention is not limited in the scope of its application to the so-cellc l Econ-- oiny insole. but is eqiiall useful in connectionv with any sole lilaulr ha ing a niarziual lip or rio which shoulrl be permanently set in substantially upright position.

With this object in View a feature oi the present invention coutea tiiates the manufacture ct an insole consisting of a body portion havingha flap. formed by cutting: a channel in one face of the sole downwardly :uul outwarilly toward its margin. iv iich turner.

up anci permanently set by inolfling pressure reinforce to the flap anrl insures a sucvessioi operation of the reinforcing machine on prepared sole. Broadly consirlererl the .iap

may he set by molrling; {.Y'CFYSHFEK into any suitable form touncl clesirable or expedient.

l'n'thc preferred form of the invention. to

manner of molding the flap so ,as to perpassed through the reinforcing machine it is manently "set it forms an important feature obvious that the tools with which the maof the present invention and is equally adchine is provided will not be able to draw vantageous with either type of insole, In the reinforcing material down into the angle applying this featurenf the invention to the between the channel and inner surface of the double lipped type of insole the crimps, or 'fia-p. -Her etofore in order to prevent the corrugations, in the flap and lip cooperate drooping of the flap it has been necessary to with each other to unite these parts and thus unite the flap and lip by either cement and produce from the two a single substantially pressure, or by stitches. upright rib to which the upper and welt may In the illustrated embodiment of the inbe secured. ventionthe marginal portion or the blank This novel insole when provided with a} which includes the liap and lip produced flap and a lip, is prepared for reinforcing by the edge slitting and channeling operaby channeling and edge slitting the blank in. 'tions is tempered. The tempered marginal the usual way, then tempering the flap and poytion of the blank is then passed through lip thus produced, and then permanently a holding machine provided with suitable setting the tempered parts in substantially tools, preferably rolls having corrugations upright position by molding cooperating formed upon their peripheries which mold crimps or corrugations in the fla and lip. the marginal portion of the blank and per- In making shoes with pointe toes, esmanently set the flap and lip into substanpecially in womens work using all leather tiallythe form illustrated at the left in insoles known as solids, it is advanta- Figs. 1 and 2. These rolls form transverse geous to rem both the flap and the lip crimps or corrugations in the flap 4: which insteadofleavingthe fla lying in. the chanstiifen the flap so that the drooping tendnel asus usuai te assist in feeding the shoe ency of the flap is counteracted. The set at the toe during the inseaming operation. imparted to ,the flap is such that there is The present invention is, therefore, useful in no liability of the sheet of sticky reinforce making solids as well as reinforced inadhering'to the outer surface of the flap. By soles, and while its preferred use is as a simultaneously turning, molding, and crimpblank for reinforced insoles, as herein speing the lip and flap these parts are unite cificially described it should be understood to form a single substantially uprightrib. that the invention is not limited to such use. The union thus obtained is equally as cf- 1 In the accompan ing drawings illustrating fective as ,though either'cement or stitches the improved doub elippedEconomyinsole were used while .all the disadvantages atin the best form nowknown to the inventor, tendant upon the use of either of these unit- Figure 1 is a plan of the insole, the reining means are obviated. forcing-material being omitted and the rib As is well known to those skilled in the molding operation being only partially comart, practical experience has shown that, in ,pleted; Fig. 2 is a transverse section on the order to permanently set the rib, something line 22 Fig. 1; Fig. 3 is a detail in right more than a mere pressure on the rib is "sideelevation of the molded compound rib; required. It has been" the practice hereto and 4 illustrates the detrimental effect fore, after channeling the insole blanks, to when the setting operation on the flap is turn up the lip or ips forming the rib, ineffectively performed permitting the outer by hammers, rotary hp-turning tools, or surface of the flap to become exposed. other means, using pressure alone. .This Referring now to the form of the invenoperation does not effectually counteract the tion illustrated, in the drawings, a sole tendency of the lip, or'lips, to droop or fall 4 shaped blank 1 is first passed through a back toward the face of the insole, resultchanneling machine in which the edge of the ing in crippled insoles as herein-before do blank is split along its shank and forepart scribed. I to produce a lip 2 and a feather 3, and a I have discovered that the permanent set, channel is cut in one face of the blank downhereinbefore referred to, of the flap is obw'ardly and outwardly within the edge cut tainedby a stretching of the fibers of the to produce a flap 4. If at this step in the leather at its upper rip-turned margin. In manufacture of the insole the flap and lip accordance with my invention, the fibers are are turned up and so left without uniting so stretched that the length of the up-turned them in some manner, it is found that the edge of the flap is greater than the length flap will droop toward its original position at its base, which, as will ,be recognized by over the channel. When the sheet of; reinthose skilled in the art, causes a stiffening forcing material is applied roughly to the of the flap, as hereinbefore described, and

blank, preliminary to sheet through a reinforcing machine, the exposed outer surface of the flap adheres to the sticky surface of the sheet as shown in Fig. 41. If the blank and sheet are then counteractthe tendency of the flap to droop toward its original pos tion over the channel, the flap is sti 'ened and held in its upturned position by transverse crimps or corruga' tions formed by the molding pressure. This passing the blank and.

' than" the length permanently set it, substantially as described.

nap-arts a permanent set to it in its turned position. Thus the tendency of the flap to droop toward the face of the insole is eii'ectually oi 'ercoine.

The nature and scope of the present invention having been, indicated and one form having been specifically described, what is claimed as new is:

1. As an article of manufacture, a leather blank for insoles, having a flap which is formed by cutting downwardly and outwardly in one face of the blank and which is turned up with the fibers of the leather stretched at its upper margin to produce a length at this portion of the flap greater of the flap at its base to 2. As an article of manufacture, a leather blank for insoles, having a flap which is formed by cutting downwardly and outwardly in one face of the blank' and which is turned up and permanently set in its up I upturned position by a series of transverse 'crln'ips or corrugations throughout its length, substantially as described.

As an article of manufacture, .a leather blank for insoles, having a flap and a par-,

allel lip cut from one face of the blank and which are turned up and united in their upturned position to form a single substantially upright by a series of cooperating transverse cri in'ps' or corrugations throughout its length, substantially as described. 1 v

4.. As an article of manufacture, a leather insole blank having a marginal-lip or rib provided with a series of transversecrimps or corrugations to stiffen it and permaucnt-ly set it in substantially upright posi o tion, substantially as described. I

ALBERT-E. JOHNSON. \Vitnesscs EMILY M. NUNN, Varmint G. ()ennN.

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