US1236528A

US1236528A - Insole structure

Info

Publication number: US1236528A
Application number: US10739916A
Authority: US
Inventors: Henry Alberts
Original assignee: Individual
Current assignee: Individual
Priority date: 1916-07-03
Filing date: 1916-07-03
Publication date: 1917-08-14
Anticipated expiration: 1934-08-14

Description

H. ALBERTS.

INSOLE STRUCTURE. APPLICATION FILED JULY 3, 1916,

Patented Aug. 14, 1917.

HENRY .ALBERTS, or rxmn, nassacnusn'rrs.

msoLE STRUCTURE.

To all whom it may concern:

Be it known that I, HENRY ALBERTS, a citizen of the United States, and resident of Lynn, in the county of Essex and State of Massachusetts, have invented a new and useful Improvement in Insole Structures, of which the following description, in connection with the accompanying sheet of drawing, is a specification.

This invention has for its object the production of a reinforced semi-flexible insole for shoes, and is specially provided with a reinforcing element in the forepart thereof which permits the same to be flexible lengthwise at the ball of the foot where flexibility is required, and at the same time stifi'ens that portion of the insole against bein flexible crosswise ;it being a known fact in the trade, that the ordinary types of flexible insoles, which are flexible crosswise as well as lengthwise at the ball portion thereof, are very troublesome to handle and manipulate in the manufacture of shoes containing same, especially in the so-called McKay shoes, Where the upper is pulled over the edge of the ins ole and secured thereto by temporary means (as by tacks for example). The pulling over of the edge of the upper on the flexible ball part of the ordinary flexible insole, causes the same to pufl u'p, wrinkle, and to become otherwise distorted,-because of the fact that the same is made up without stiffening crosswise, to resist the pressure applied thereto in the pulling over of the upper thereon. Again, more or less trouble is encountered'in using the ordinary types of flexible insoles because the edges thereof are too delicate and weak te hold and. clench the tacks used for holding the upper edges secured thereto in the McKay shoes.

To provide an insolewhich has body thereto to overcome the aforesaid objectionable features found common in the ordinary, t pes of flexible insoles, which will permit exibility lengthwise and resist flexibihty crosswise, and which may be manufactured at the lowest cost, is the object of my invention. 3 s To these as wellas other ends, my invention consists of'the novel features of eonstruction, combination and arrangement of parts described in the following specification, and particularly pointed out in the sub-' joined clauns.

I I Specification of Letters Patent.

Application filed July 3, 1916. Serial No. 107,399.

Patented Aug. Mi, 1917..

Referring to the drawing Figure 1 represents a plan view of the 1nso le embodying my invention.

Fig. 2 represents a sectional view taken on line 2-2 in Fig.1.

Fig. 3 represents a section taken on line 33 in Fig. 1.

Fig. lrepresentsa plan view of the slitted reinforcing and stiffenin member, having a toe part made integral t erewith.

Fig. represents the same view as Fig. 4, but indicates the use of a separate toe partand an intermediate slitted reinforcing and stiffening member.

Fig. 6 represents a perspective view of a flexible insole of my type, showing the same supplied with the toe-type of reinforcing and stiffening member.

Fig. 7 represents the same view as Fig. 6, but shows an intermediate type of reinforcing and stiffening member, similar to that shown in Fig. 5.

Fig.- 8 represents a modified view of: a part of the forepart of an insole, showing the same made up of but two layersthe upper layer being an ordinary layer of flexible material, and the lower layer being a slitted layer of stiffening material.

' Like numerals refer to like parts throughout the several views of the drawing.

The numeral 1 represents a stiffening shank-piece which may leather of anydesired degree of stiffness, or other suitable material, forming the heel 2 and preferably the arch 3 which terminates at 4 toward the ball of the foot. 5 in its entirety, represents the ball portion or forepart of the insole, having the toe-portion 6 and the engaging end 7 which is glued, stitched, or otherwise suitably secured to the end 4: of the shank-piece 1,the joining ends of the shank-piece 1 and the ball portion or forepart 5 of the insole being preferably skived and glued, stitched, or otherwise suitably secured and united together to form a complete unit sole. p

8 represents an upper layer of the ball portionor forepart'of the insole, which may be made up of felt, fabric,

any other suitable flexible material (preferably the latter) 9 represents the lower layer of the ball portion or forepart of the insole which is similar in shape to that of the upper layer 8 and which J be made of solo upper leather, or

may also be made of fabric, canvass,

. upon buckram, felt, or other which may upper leather, felt, or other suitable flexible material (preferably fabric). Between the layers 8 and 9 of the insole is inserted the slitted-stiffening-member 10 which is provided with a series of crosswise slits 11, which are preferably out completely through, with the ends 12 thereof terminating at an appreciable distance from the edge of the stiffening-member 10, as indicated in Fig. 5. The slitted-stifleningmember 10 (Figs. 5 and 7 may terminate at 13, instead of reaching to the tip of the toe of the insole for including the integral toe-piece 14, as shown in Fig. 1,said slitted-stifiz'ening-member 10 being made of buckram, or other fabric, leather, felt, or any other suitable stiffening material. 15 represents a separate stiffening-toepiece which may be used with the toeless type of slitted-stiffening-member 10, shown in-Figs. 5 and 7, and may be made of any suitable stiffening material, such as buckram, leather, fiber, etc., said stiffening toe-piece 15 beingalso preferably used in connection with the integral toe type of slitted stiffening-member 10, shown in Figs. 4 and 6, as indicated by 15,stiflened leather being the most practicable, however, since the steaming process employed in shaping and setting the toe-cap of the upper of the shoe, when the same is first stretched over the last, usually aifects the toe-portion of the insole and softens the same, especially when relying such material for too stiffening purposes. The steaming process is often found to weaken the toeportion of the insole of flexible insoles, and even damages the same to a degree where it becomes useless. For that reason, I propose to preferably use a stiffening-toe-member which will not readily be afiected by said steaming process; and suggest, when using the integral toe type of reinforcing and slitted-stifi'ening-member 10 shown in Figs. 4 and 6, (when the same is made of buckram, felt, or the like) to employ along with the same an auxiliary stiflening-toe-piece as 15,

be made of stiff leather for overcoming the effect produced by the steaming process, when relying upon buckram, fabric, or the like,-it being understood, however, that the slitted stiffening-member 10 may be made of leather with an appreciable degree of stifiness, which, by virtue of the slits 11 cut therein, produces the lengthwise flexibility for the forepart that is necessary, in which event, no extra stiffening-toe-piece 15 will be required to be incorporated in the 1nsole.

The slitted-stiffening-member'10 with the toe-stifl'ening-

piece

15 or 15 are sandwiched inbetween the upper layer 8 and the lower layer 9 of the forepart, and are secured in place therewith by any suitable means, as by stitching or by the use of adhesives (preftion with the two-ply erably the latter) the adjacent surfaces it being understood that of the upper and lower layers of the forepart may be gummed or cemented, or otherwise suitably treated, if desired, for securing the reinforcing element in working position therewith.

It may be observed that while I have shown the ball portion or forepart of the insole using the reinforcing slitted-member sandwiched between an upper and lower flexible forepart layer, I do not wishto be limited against using a ball portion orforepart for the insole in which ball portion of the insole and is covered by and secured to a flexible layer which makes up the upper ply of the ball portion, as,

shown in Fig. 8; thus furnishing a two-ply ball portion for the insole instead of the three-ply shown in Figs. 6 and 7.

It may further be observed, in connectype of ball portion, indicated in Fig. 8, that if desired, the slitted layer may be made of buckram, or other suitable stiffening material, and reinforced at the toe-portion thereof with a stiffened toe-piece between same and the upper layer in a similar manner to that indicated in Fig. 6.

It may also be observed that according .to

the slitted-stiifening-element makes up the lower-ply of the the degree of stiffness of the stiifening-member 10, the slits 11 may be spaced to suit conditions; and also that, depending upon the degree of stiffness of said stiffening-member, the slits 11 may becut and made of any desired width necessary (from the width of a knife cut up) to provide ample flexibility for the same.

While the preferred embodiments of my invention have been described in detail, it will be understood that I do not wish to be limited to the particular construction set forth, since various changes in the form, material, proportions, and arrangement of parts and in the details of construction may be resorted to without departing from the spirit and scope of the invention, or destroying any of the advanta es contained in the same,-heretofore descri ed and defined in the subjoined claims.

What I. claim is:

1. An insole comprising a relatively stiff heel and shank section terminating in the rear'of the ball line; a forepart of material inherently more flexible than that of the heel and shank section, and secured to the forward end thereof; and a layer of reinforcing material under the forepart, transversely slitted adj acentthe ball line and unslitted at the toe portion, the slits terminating short of the sides of the insole, and the reinforcing layer being secured throughout its area to the forepart.

2. An insole comprising a relatively stifi heel and shank section terminating in the rear of the ball line, a forepart of material part, adapted to sandwich said reinforcing inherently more flexible than that of the heel layer with said forepart, being adhesively and shank section and secured to the forsecured to said reinforcing layer throughout Ward end thereof, a layer of reinforcing maits area and joined to the under side of said terial under the forepart, transversely slitheel and shank sections at theforward end ted adjacent the ball line and unslitted at thereof. a

the toe portion, the slits terminating short of the sides of the insole, and the reinforcing HENRY ALBERTS' layer being secured throughout its area to Witnesses: the forepart, and a covering layer of flexi- B. H. OHESTOK, ble material similar in shape to said fore- R. LICHTENSTEIN.