US1351691A - Resilient heel or lift for boots and shoes - Google Patents

Description

H. C. RIDOUT.A

RESlLlENT HEEL 0H LIFT FOR BOOTS AND SHOES, A'PPLxcATloN f-ILED `1AN.7,1920.

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stares HARRY CHARLES RIDOUT, OF BOURNEMOUTH, ENGLAND.

RESLIENT HEEL OR LIFT FOR BOOTS AND SHOES.

Specification of Letters Patent.

Patented Ang. 31, 1920.

Application led January 7, 1920. Serial No. 4349,915.

To all 7,071,011@ t may concern.'

Be itknown that l', HARRY CHARLES Rinonr, a subject of the King of Great Britain, and residing at Bournemouth, Ilanipshire, England, have invented new and useful Improvements in Resilient Heels or Lifts for Boots and Shoes, of which the following is a specification.

This invention consists of improvements in and relating to resilient heels, or lifts, for boots and shoes; made from rubber, composition, or any other suitable material that can be used for the purpose and according to which in order to enable the resilient heel, or lift, (hereinafter referred to as a lift) to be attached to a boot or shoe (hereinafter referred to as a boot) in such an improved manner' that a more perfect attachment and closeness of fit than has hitherto been possible is obtained and maintained between it and the boot, both before and after considerable wear ofthe lift has taken place.

One of the objects of the present inven` tion is to provide a lift so formed and in which suitable metal washers or their equivalent is incorporated whereby when the afiixing devices for holding the lift are placed securely in position in the boot, the cha-nge brought about thereby to the original molded configuration of the'lift is such that acting in conjunction with the resilient material from which it is made, insures that portion fprming its center, and also its marginal edge or flange, permanently to exercisc (particularly from such marginall edge and the centrally placed domed-part) an abnormal resilient pressure or effort on the un lersurfacc 'of a boot to which it is attached, said resilient effort being 4in addi# tion to, but quite independent of, the more intense closeness of attachment derived from vacuum chambers provided as auXiliary devices.

In order that the invention may be clearly understood it will hereinafter be described with reference to the accompanying drawings, in which Figure 1 is an upper-face plan of one form of the improved lift.

Fig. 2.is a sectional view taken on the line 2-2 of Fig. 1.

Fig. 3 is an end View showing the breast end of the lift shown in F ig. l, but with tiers on itsunder face.

Fig. 4 is an under-face plan of one form of the improved lift.

Fig. 5 is an end View showing the breast end of the lift shown in Fig. t.

Fig. 6 is an edge View to an enlarged scale, of a perforated curled and'v dished washer of the kind used in this invention.

Fig. 7 is a' sectional view taken on the line 7-7 of Fig. 8, shown in edge View in Fig. G also, of the washer. A

Fig. 8 is a planview of the washer shown in Fig. 6.

Fig. 9 is a view of a lift of the kind shown in Figs. 1 to 5, after application and aiiixing to a boot heel.

Figs. 10 and 11 show, to an enlarged scale, two different forms of nails of the kind. used according to this invention 'for securing'such lifts to a boot.

Fig. 12 is an upper face plan of a round form of the improved lift.

Fig. 13 is a sectional View taken on the line 13-13 of Fig. 12.

Fig. 14 is a View of a lift of the kind shown in Fig. 12 after application and afxing to a boot heel; the same lift of an enlarged or reduced size may be applied as pads to a .boot sole.

Fig. 15 is a plan view-of a perforated, curled and dished washer of the kind used in the form of lift shown in 12.-

Fig. 16 is a sectional view taken on the line l6-16 of Fig. l5.

Fig. 17 is an under face plan of a lift of the kind used in one form of this in-v vention 1n which a complete covering for the sole of a boot after application and af- I'ixing thereto is shown.

I Fig. 18 is an under face plan of three toe orvheel pads or lifts, accordin to this invention7 after application and a Xing in Like letters of reference indicate like parts throughout the drawings, in which According to the present invention the lift (a) (measured from its undere marginal edge and Jfor a distance therefrom toward its center on its under face) is formed so as to have a convex or curvedfiange or part blending into a concavity (g) vcentrally placed therein; and (measured from its upper marginal edge and` for a distance therefrom toward its center on its upper or attaching face) said lift (a) is l formed so as to have a concave or curvedl'lange or part (b) terminating where one row of a number of tiers or steps (c) are provided and placed approximately concentric or parallel to said upper marginal edge of the lift (a) in which tiers or steps (cvre located centrally thereto in a convex or domed-part (cl2), or in either or both to increase and intensity the vacuum area essential during application and be'tore any securing devices are employed), there are )rovided a number ot auxiliary concavities (d1) and (c1) whereby when the resilient lift (a) is pressed against the flat or under surface ot a boot, air is expelled and a partial vacuum results in all the auxiliary concavities ((ll) and (c1), in addition to that vacuum operating in the larger hollowed form (sce Figs. 2 and 13) consisting ot' the con'aved v{lange-part (7)) and the further depression, formed by the placement of the tiers or steps hereinbetore referred to.

The acting or upper tiers (f) are constructed',- during molding ot the litt (e) parallel to the single plane of the upper marginal continuous free edge of said lift (a) but after depression of the lift (f1) which arises during its allxing, saidk tiers assume slight angularity thereto, and their edges present and offer (due to the displacement ot the material) extreme resilient effort when placed and pressed on a flattened surface thereby insuring for eachv edge on each row of steps or tiers (c) a perfcct vacuum sealing..

A condition of' partial vacuum is necessary to temporarily hold the resilient lit't (a) in a iattened state and firmly in the desired position, the object being to allow the aflixing'nails, screws, or the like, to be truly and correctly inserted in the boot, and to accomplish this effectually, the auxiliary concavities (ci) in the tiers (c) and (all) in the domed part (d2) are provided for insuring better adhesion of the lift (a) during alxing; especially if the surface of the hoot is irregular, as each auxiliary concavity acts as a separate suction area quite independently of the-large suction arca formed by (and ' tion, it gives the faces ol the steps o1" the hollowed construction of the upper face of the lift (a), surrounded by the beveled, concave, or curved-flange (b).

In practice it is found that the center of a lift has the greatest tendency to break con'- tact with the surface of a boot both during and after application thereto, and to overcome this detect the lift (a) is provided with the convex domed-part (d2) containing auxiliary concavities (d1.) therein, said part (d2) being surrounded by a flat bottom-part (cl)- adjacent to the inner row of tiers (c). This construction produces what may be described as a waved or corrugated form when viewed in cross-section, (see Figs. 2 and 13). To obtain this corrugated form in crosssection, which is necessary for successfully maintainingthe litt (a) flat on a boot heel (H), or a sole (K), said lift (a) is formed on its under face with a convex or curved-lange (e), which mayvhave a-smooth surface, or, be provided with shallow or beveled tiers, or steps (f), (see Fig. 3) g in either case said flange (e) blends into a centrally placed concavity (g) provided and located on the opposite faceto that occupied by the convex or domed-part and the flat part (d).

By producing a resilient heel, or lift (a) with an arrangement of steps or tiers (c) and of a corrugated-like form in cross-sec closest approximation to an equal thickness of the lift at any part when it is flattened out.

ln order that a resilient litt (a) may be properly attached 4to a boot heel '(H), or boot sole (K), it is necessary when nails are employed, that these should be hammered down straight and truly through the lift (a) into the heel (H), or sole (K) of the boot, but due to the shortness of the nails suitable for attaching a lift (a) to a bootbefore it is struckby the hammer, it is,

knocked sidewise, and penetrates crookedly, or maynot even penetrate at all.

In the present invention the lift (a) is constructed with small openings. (h) ot' less diameter than the body of the alixing device employed, these openings (h) are provided ior locating the afixing devices in a position so that they enter the countersunk center and hole ofthe curled-edged Washers incorporated in the lift (a). Said washers are constructed with a dished or saucered body (52)'.and are provided with said curled edge (lf3) so'as to prevent their edges cutting the resilient material from which the litt (rl.) is formed; said washers (i) are further provided with come municating periorations (i4) vtherethrough for allowing jointure to be made through saidl perforations by the resilient material composing the lift (a).

To be used as a combination with such resilient lifts, heels, or soles as hereinbefore referred to, openings (h) are formed with a conoidal enlargement (h1), these are provided to accommodate the heads of the affixing nails or the liken The nail is either' formed with an oval-countersunk head (jl) or a countersunk head and is constructed to have emanating from either form of 'head inaxial alincrnent With the body of Vthe nail an extension-piece (js), provided to facilitate the holding the nail for driving it in truly. On the extensionpiece (js) and close to the head of said nail a reduced part is provided, which enables the said extension-piece to be easily broken ofi' from the nail head, after it has served the purpose of guiding the said nail during its insertion, and of further allowing the countersunk headpart to be driven firmly down into the countersunk center of the washer As the location of the washer (i) and nail head (jl) or (je) is l considerably in from the under surface of the lift (a), it makes it necessary that a large amount of wear must occur to the under face of said lift (a) before the nail heads or or the washer could make wearing contact with anything; this condition would not obtain were the beforementioned extension-piece not broken off. 'V

It is obvious that when apunch is ernployed for driving a nail into flexible niaterial, even should there be a guiding hole therein, lsaid punch cannot control the direction of the nail, in fact, iu practiceI a punch'usually causes the 'nail to enter crookedly, and to obviate this defect in aiiivN ing lifts to boots the detachable extensionpiece provided on the nail (j) hereinbefore described, has been designed to be used in combination with the lift and washers Owing to the snug fit of the nails and the location of the openings (it)` in the lift (a), and to the auxiliarysuction areas or concavities (al) and ((Z), the partial vacuum established during attachment and the. closeness of lit between the lift (a) aud the boot willnot be impaired to any appreciable extent, more especially so when acting in conjunction with the important resilient condition resulting troni the endeavor of the material to return to the waved or corrugated forni of the lift (u) as originally molded and as shown in Figs. 2 and i3 in cross section. l

When in their linal ,position the securing nails or the like and the ushers are wherever `possible located in such a manner as to draw the ridge portion (e) ofthe lift (a) perfectly flat.

n win be Obvious that has forum heels -V of boots as shown in Figs. 1 to 5 or lifts for the heels of boots or circular pads for the soles of boots, but of diiferentsizes, as illustratedl in Figs. 12 to 14, or lifts for completely covering the soles of boots, as shown in Fig. 17, or lifts used as toe, sole, or heel pads, as shown inFig. 18 may be constructed with various marginal forms and in the improved manner described hereinbefore without departing from the spirit of the invention.

What I claim is 1. n a resilient lift for boots, the cona-v bination of a plurality of surfaces arranged in tiers on the upper part of the lift so as .to provide a plurality of recesses one Within another in the upper face of the said lift.

2. In a resilient lift for boots, the combination of a plurality of surfaces arranged in tiers on the upper part of the lift so as to provide a plurality of recesses one Within another in the upper face of the saidlift the marginal edges of which are arranged in a single plane. I A

3. in a resilient lift for boots, the combination of a plurality of surfaces arranged in tiers on the upper part of the lift so as to prvide a plurality of recesses with parallel upper surfaces arranged one Within another in the upper face of the said lift the marginal edges of which are arranged in a single plane parallel. to the upper faces of the several tiers.

4. In a resilient lift for boots, the-combi' nation of a plurality of surfaces arranged -in tiers on the upper part of the lift so as to provide a plurality of recesses one Within another in the upper face of the said lift and V to provide a `plurality of recesses one Within los another in the upper face of the said lift,

and a domed pait extending upwardly Within the innermost recess.

6. ln a resilient lift for boots, lthe conm' bination of a plurality of surfaces arranged in tiers on the, up )er part of the lift so as to provide a plurality of recesses one within another in the upper face of the said lift, and areas of depressed surface on the surfaces forming the vsaid recesses. p

7. ln a resilient lift for boots, the combination of a' plurality of surfaces arranged in tiers on the upper part of the lift so as to provide a plurality of recesses one Within another iii-the upper face of the said lift, a domed part extending upwardly within the innermost recess, and areas of depressed surface on the surface of said domed part.

8. In a resilient lift for boots, the co1nbination of a pluralityof surfaces arranged in tiers on the upper part of the vlift so as to provide a plurality of recesses one Within another in the upper face of the said lift, and a convex surface forniing the under face of the lift..A y

9. In a resilient lift for boots, the combinationof a plurality of surfaces arranged in tiers on the upper part of the lift so as to provide a pluralityvof recesses one Within another in the upper face of the said lift, a 15 convex surface forming the under face of the lift, and a concave surface Within the said convex surface. 10. The combination with a resilient lift for boots, of a Washer, a nail passing through the said lift and washer to serve as 20 means for fastening the lift to a boot, and an extension of the said nail arranged so that it is readily removable by breakage.

Dated this seventeenth day 0f December, 1919. i

HARRY CHARLES ninoUT.

Witnesses .ERNEST FAPPERT,

FRANK HUMrHRms.

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