US 2185526 A
Description (OCR text may contain errors)
Jan. 2, 1940. B. .1. SILVER 2,185,526
SOLE MODIFYING INNER SOLE Original Filed May 21, 1934 2 Sheets-Sheet l INVENTOR BENJAMIN J. SILVER ATTORNEYS Jan. 2, 1940. B. J. SILVER 2,185,526
SOLE MODIFYING INNER SOLE Original Filed May 21, 1934 2 Sheets-Sheet 2 INVENTOR Z? ATTORNEYS BENJAMIN J. SILVER Patented Jan. 2, 194% that earner crust,
some Monrrvmo INNER SOLE Benjamin .l. Silver, New York, N. Y. Original application May 21, .1934, Serial No.
726,738. Divided and this application 1937; Serial No. 141,753
' 24 Claims.
The invention relates to a shoe and more particularly to the conformation of the foot engaging surface of the inner sole of a shoe and the disclosure herein constitutes an improvement and development of the invention disclosed v.
in my Patent No. 2,046,190 granted June 30, 1936, andthe present disclosure constitutes a division of my copending application Serial No; 726,738 filed May 21, 1934.
The present invention, aswas the case with the disclosure in the above identified patent, features the providing of a basic shoe which can be produced as a'factory proposition and supplying with the basic. shoe a plurality of sole modifying inserts having both cushioned and uncushioned areas by means of which inserts the store salesman can selectively adopt the basic shoe to fit more accurately than is now possible the peculiar conformation of the foot of the particular person for whom the basic shoe is being modified. v
In the prior patent, the basic sole contour was therein featured as having. low arch characteristics approaching a fiat footed condition, but in the device illustrated in this application while the sole may have low arch characteristics the basic sole is designed to more nearly approach arched contours not necessarily of maximum low arch characteristics. v
lhe primary object of the present disclosure, as was the primary object'of the disclosure in the above patent, is to provide what maybe called a store or factory produced shoe, in distinction from a custom made shoe, and which 7, basic shoe. canbe readily modified in its sole conformation to, more nearly fit the peculiar variationsof the maximum number of customers so as to give them a more accurate considered anatomically thanhas been, possible heretofore.
present disclosure is not particularly intended to function curative or corrective shoe, although obviously it may be used for such purposes at least toa limited extent.
Another object of the invention is to provide an improved form of inner sole contour which in its cooperativerelation to cushioned and un sole.
pressure areas within limited areas of the shoe May 10,
The presentcdisclosur'e features an improving of the cushioning area at the ball of the foot, distinguishing from the similar construction in the prior patent in that the cushioned area herein is formed of an integral insert rather than of the two separate inserts disclosed in the above identified patent. In this application the cushioning insert beneath the ball ofthe foot has its point of maximum elevation located I slightly in the rear of the heads of the three middle metatarsal bones, rather than beneath the head of the second bone as in the prior patent. There is also featured herein the extension of the cushion rearwardly from this point of maximum elevation so as to provide a,
' support for the anterior portion of the metatar- As this ball cushioning Much discomfort is noticed in known forms of shoes in that a ridge. or joint is formed between the sole forming the fiat portion of the heel pocket and the upstanding or counters forming the back of the heel portion of the shoe. Accordingly, another object of the invention is to provide a socket or heel saddle of a single integral piece of materiaLpreferably of a resilient 0r cushioning material such as rubher, which saddle is of a scoop-like form with the concaved upper heel receiving concavity free of joints and like breaks in the heel forming material, andwhich saddle is designed to distribute throughout the same pressures imposed thereon by the plantar inner tuberosity of the oscalcis heel bone and the soft tissue around the heel bone.
Another object of the invention is to provide inserts for the basic shoe which will function modulants of the sole contour provided by the basic shoe particularly in its function of providing longitudinal arch supporting features selectively for the inner or outer longitudinal arch as may he required in any particular as well as the heel portion to help rotate the foot from heel to ball as a unit by the wedges herein featured. I
Still another object of the invention is to provide an improved form of sole and heel contour modifying inserts which can be fitted to standard makes of shoes not necessarily of the type herein featured as a basic shoe.
Various other objects and advantages of the" invention will be in part obvious from an inspection of the accompanying drawings and in part will be more fully set forth in the following particular description of one form of construction embodying the invention, and the invention also consists in certain new and novel features of construction and combination of parts hereinafter set forth and claimed.
In the accompanying drawings:
Fig. 1 is a vertical sectional view taken longitudinally through the basic shoe with two sole modifying inserts shown in position located with reference to the bone structure of the foot shown in side elevation in dotted outline, and illustrating a preferred embodiment of the invention;
Fig. 2 is a plan View loo-king down upon the inner sole of the basic shoe shown in Fig. l and with the replaceable inserts omitted;
Fig.3 is a similar view with the inserts in place and located relative to the bone structure shown in plan;
- Figs. 4 and 6 to 8 inclusive are transverse sectional views taken through the shoe of Fig. l and through the vertical planes therethrough in the several positions indicated by the similarly designated section lines in Figs. 2 and 3; Fig. 6 is a view similar to Fig. 4; Figs. 4 and 5 distinguishing from each other in that Fig. 4 shows a left flange upwardly extending insert and Fig. 5 is a similar. right flange type of insert; Fig. 9 is a longitudinal sectional view through the rear portion of the shoe and taken on the irregular line 99 of Fig. 3 facing outwardly as indicated by the arrows;
Fig. 10 is an explanatory figure in longitudinal section showing the construction of the inner and outer sole with the fixed ball pad shown in side elevation with a part broken away and located in position before the soles are pressed together;
Fig. 11 is an exploded View showing the inserts of Fig. l displaced from the heel saddle; and
Fig. 12 is a view in perspective of a single unitary insert for insertion in any standard make of shoe. and forming a modified showing of the invention.
In the drawings and referring first to the basic shoe construction illustrated in Fig. 1, there is shown a conventional form of womans shoe comprising an outer sole l9, an inner sole l l with the edge of the upper l2 secured at its forward portion between the soles as particularly shown in Figs. 4 and 8 and at its rear end secured between the upper sole and the top of the heel l 3 as shown in Figs. land 9. In one commercial form of the device herein disclosed, the inner and outer soles were split from a single layer of leather. The outersole l0 extends from end to end of the shoe and is provided above the heel IS with an opening l4 extending therethrough directly beneath the plantar inner tube-rosity a of the bone skeleton. In the region beneath the ball of the toes, the outer sole is provided with an upwardly extending integral projection 55, said projection may be either of leather or replaced by a resilient material, being somewhat elliptical in plan and 10- cated to intrude into the similarly shaped opening it in the inner sole H and from which open ing the projection it? was previously cut. The opposite long sides of the opening IE are split outwardly as indicated at l1, iii. A- ball or metaceive the ball of the foot.
tarsal area pad I9 is located in position with its forward endintruded into the opening [6 to reof highly flexible. material, such as soft rubber, has a fiat underside 20 and a flatly arched upper side 2!. When viewed in plan the pad is some-' wider end overlapping the portion of the inner sole adjacent the rear edge of the opening l6 as particularly shown in Fig. 2.
The pad is accurately formed with relation to the bone structure of the fore part of the foot,
This pad is formed it being noted that it underlies the second, third 1 j and fourth metatarsals, designated respectively 2m, 3m, 4112, leaving the first and--fifth metaof the second, third and fourth toes, leaving all the phalanges of the first and fifth toes as well as the second and third phalanges, designated respectively p and p of the second,-third and fourth toes uncushioned. In other words, there is no intent herein to cushion the toes but on the contrary to provide for the toes the conventional form of leather support. Considered rearwardly 35 the pad l9 underlaps the anterior half of each ofthe shanks of the second-third and fourth metatarsals It is a feature of this pad that it has its point of highest elevation indicated at 23 just back of the head h of the second metatarsal bone 2m and decreasesin all radial directions from this point of highest elevation to its outlying feathered edge 2d. This provides a portion of greatest thickness disposed at the inner side of the central line or medial longitudinal section line of the shoe, indicated by the dash line ab of Fig. 2. The pad I9 is substantially symmetrical relative to its axis indicated by the dot and dash line c-cl of Fig. 2 which extends at a slight angle from the line ab in the direction towards the outer side of the shoe. The high point 23 is located on the side of the; line a-b opposite the side containing the pad axis cal and adjacent the portion of the outlining edge 26, which'overlaps the outwardly curved portion of the inner sole. The inner margin of the pad l9 as well as its equivalent 49 overlies the shoe upper l2 adjacent the narrowest portion of the inner sole H and forwardly and adjacent to the outwardly forwardly curved inner edge thereof. It is the intent of this construction to provide a cushioned support for the forward central portion or crown of the metatarsal dome just in rear of the heads of the metatarsals and also to provide a transversely curved support of slightly less heighth for the transverse arch formed by the heads of the metatarsal bones and to provide a curved support for the region just in advance of the heads of the metatarsal bones.
The present disclosure particularly features the in all directions in elevation from this point of maximum elevation but to provide an uncush ioned area surrounding the cushioned area'and underlying the bones of the first and fifth toes;
The rear edge of the inner sole H terminates at'transverse line at the forward edge of the heel is, it being understood that the plantar arch p at the shank of the shoe may be reinis understood that both the pad 59 and-the saddle with a; protuberance 2i which extends through the opening id and inay'even be of a depth to intrude into a cavity scooped out of thetop of the heel it. It is suggested that the protuberance 27! be less. resilient than the balance of the tion in the heel saddle.
heel saddle so that strains on the saddle'frorn the heel bone will be more or less distributed uniformly across the entire bottom area of the saddle, While the upper heel engaging surface of the saddle of smooth rounded contour from er go to edge it is suggested that a shallow de-. pressiondii beforined in the upper surface di rectly heel bone and specifically beneath its plantar inner tuberosity a. This has the effect of pocketing the plantar inner tuberosity of the ,os calcis and thus tends to prevent forward slipping of the heel out of its fixedposi- The inner sole including the saddle is provided with two lines of sockets arranged on opposite sides of the medial line of the shoe' Two sockets so are located on the left side of the saddle and-two sockets are similarly located. on the right side ofthe saddle. The inner sole is provided at its shank portion with a pair of sockets 32 along the left or inner side of the sole and with a pair or sockets (not shown but corresponding to 32) along the right or outer edge of the sole, said sockets being adapted for use as elements of readily detachable snap fastem ing means for securing in place the inserts here inafter described.
A sock lining hereinafter sometimes referred to as a top layer or sole engaging member 97;"
tends along the entire length of the inner sole as is usual andconceals the eyelets or sockets when the shoe fleaves the factory. The thusfar described is complete in itself referred to herein as the basic shoe.- inner sole with the heel saddle and metatarsal area pad in place, either with or without the sock lining, will be referred to hereinafter as the basic sole.
It will be understood that the shoe as so far described and without sole modifying inserts may be used by apersc-n having a normal foot but with lower than average arch conformation. The
"large majority of persona particularly those in adult life, have developed anatomical abnorinalis' ties,
tion whatsoever to other correlative parts of the shoe. To supply the necessity in such cases for providing support to the dome of the longitudinal arches and even perhaps to contribute some curative effect in the case of fallen arches, the sales man is provided at the time he fits the shoe with one or more sole modifying inserts, hereinafter referred to as sole modularits each comprising-a bottom portion and which may also be provided along one longitudinal edge with upturned or 'basic insert.( The showing in Figs. 4 and 6 discloses a left flange modulant ii and the showing in Fig. 5 discloses a right flange modulant 33. In each case the insert is provided/with a curvedflange 3i rounding downwardly and then sharply into a bottom or undersole portion 38. In the showlngin Fig. 11 the modulant is provided with flanges on both longitudinal edges. The flat bottom portion is provided with coasting fastening elements 3% in the instant case shown to be of thesnap fastener type disposed to fit either in the left hand line of elements 36 as shown in Fig.4 or into the hand line of elements M as shown in. Fig. 5 depending upon whether a left or righ. flange modulant is used.
4- and 5 themodulants are of greatest thickness adjacent the round angle between the flat bottom portion and the upstanding flange, reducing in thicliness'to a feathered edge ill at the top of the flange and a feathered edge ll just beyond the medial line of the sole.
The modulants each include a heel socket 52 which is designed to fit snugly into the heel saddle 25 and in this way accurately locate the flanges 31 in proper position considered both longitudinally and transversely of the shoe to provide the support to the longitudinal arches of the foot. The modulants all underlie the inner longitudinal arch of the foot at the junction of the soaphoid so and the entocuneiform C1, the mesocuneiform C2 and the ectocuneiform C3, the two latter forming the internal cuneiform bones. It is also suggested that the bottom portion 33 be extended forwardly beyond the shank to provide additional elevation to the portion of the sole supporting the metatarsal dome for this,
purpose a pad 63 is included in the forward portion of modulant and disposed to give additional elevation to the high point and to corn tinue the support of the arch further rearwardly than is provided, by the pad l9 alone. As shown in Fig. 1 the pad l? extends rearwardlyto the juncture of the metatarsal m and the scaphoid so. It will be understood that these inodulants are not of any material thickness, even at their places of maximum thickness and. the showings in the drawings have been purposely exaggerated so as to show clearly the relation of the detail parts.
It will be understood in cut disclosure features a ement in the 1nodiflcation of the basic sole tructure out there is no intent to provide for the gross variations imposed on standard shoes by the use of the arch elevators and lifts new found the market. The diiference between the sole of a properly fitte shoe and one that seems to fit is a matter of refined dimensions of the. order of hundredths of an inch. In the instant case the basic shoe is presumed to fit the wearer in the usual sense ofgeneral that the pres- 1 the term and the use of the inserts herein disclosed is simply to add that small increment of sole Variation properly located to give a nicety of fit to minimize foot fatigue over what would be provided simply by what is designated as a properly fitting shoe in the commercial trade.
It so happens, of course, that with a relatively small number of persons something more than this refined variation provided by the large or basic insert or modulant hereinbefore discussed is necessary to insure the desired perfection of fit and this necessary building up most frequently occurs somewhat high on the longitudinal arch, particularly the inner longitudinal arch. In. order to meet this condition, there is disclosed herein an additional or supplemental arch pad 44 hereinafter referred to as a supplemental variant. This variant has its underside conforming to the portion of the flange which is to be built up and the upper side as of which variant engaged by the foot is contoured to meet the particular foot condition which it is intended to remedy. Both the bottom portion 38 as well as the pad M underlie the inner longitudinal arch at the junction of the scaphoid'sc' and the internal cuneiform bones C C and C Fastening means it, such as the snap fasteners previously described, are used to secure the variant in place, it being understood that the variants have previously been fitted to the modulants as a factory operation.
The invention as thus described is predicated upon forming the basic shoe with its metatarsal pad i9 and heel saddle 26 incorporated in the shoe as a factory operation so that these cushioning elements are fixedly located relative to each other in the finished shoe. There is dis closed in Fig. 12 an insert designed to be fitted in a standard make form of shoe which when installed in such a shoe will make of it a shoe approximating the basic shoe in its sole conforming outline with the heel saddle and metatarsal pad properly located. This insert 4,! is shown to comprise a heel saddle 43 which corresponds to the heel saddle 26, except that it has a flat curve on its underside with the protuberance 2! omitted and with the cavity 29 retained and which cavity is necessarily made shallow in those cases where lack of clearance necessitates the thinning out of the under portion of the saddle. Properly located in forwardly spaced relation to the saddle is a metatarsal pad id corresponding to the pad is and like the pad I 9 formed of highly resilient material and a material having greater resiliency than the material of which the heel saddle is composed. Positioned between the saddle and the pad is a spacer 5d of non-resilient material. such as leather, and which may have no material thickness in those cases where there is no intent to modify the shank portion of the conventional shoe. The spacer 5B extends anteriorly from the heel saddle at and medially along the longitudinal medial plane of the shoe. In those cases where it is desired to modify this portion of the sole, the spacer'btl may have the form of one of the modulants 35 or 36, or as shown may have both flanges corresponding to 3? of Figs. 4 and 5 and in this case designated 5! and 52. The spacer 5d overlaps at its rear end and is secured to the advance portion of the heel saddle and overlaps at its forward end and is secured to the rear portion of the pad 49. Even though the rear edge of the spacer 55 be bevelled in order to avoid the presentation of pronounced ridges to the underside of the foot, still it functions at least to a limited degree in preventing forward movement of the heel from the heel saddle S8 and in this way supplements the similar function of the depression 29. "Ifhe entire construction shown in Fig. 12 resembles the basic 7 shoe of Fig. 1 with itsinserts and likewise is provided with a feathered edge 53 which assists in avoiding sharp breaks, ridges or joints between the insert and the inner face of the shoe in which be more permanently located as by gluing, ce-
menting or vulcanizing. 7
While there have been shown, described and pointed out in the annexed claims, certain novel features of the invention, it will be understood that various omissions, substitutions and changes in the form and details of the device illustrated and in its operation may be made by those skilled in the art without departing from the spiritof the invention.
1. In a shoe, a cushioning pad forming a segment of an egg shape form with its flat side downward and its arch. side upward having its point of maximum elevation under the shaft of the second metatarsal bone thereby to fit under. and tend to support the metatarsal dome, said thickness reducing from its point of maximum thickness in all directions to a feathered edge. said pad having its major axis extending longitudinally of the shoe, terminating at itsrear-end beneath the middle metatarsal bonesterminating at its forward end beneath the middle phalanges and having a width to underlap the heads of the three middle metatarsal bones leaving the Y heads of the first and fifth metatarsal bones uncushioned, or substantially so and a supplemental pad having its forward edge located rear-1 wardly of the forward edge of the firstnamed pad, overlapping its portion of maximum elevation and thus modifying the contour of the upper side of the first named pad in the region adjacent said point of maximum thickness and the] j rear edge of said supplemental pad terminating adjacent the bases of the three middle meta+ tarsal bones.
2. In a shoe, means providing a basic sole in-,
cluding a cushioning pad substantially elliptical in plan and having a convex upper surface with its point of maximum elevation beneath the metatarsal area and inrear of the-head of the second metatarsal bone, said pad projecting forward beyond said head, and a replaceable insert for modifying the contour of the basic sole, said insert extending from the heel portion and having its forward end overlappingth'e rear portion of said pad and adding to themaximum releva tion at the pad forming part of the basic sole.
3. In a shoe, means providing a basic sole in-f cluding a cushioning pad having a convex upper surface with its point of maximum elevation beneath the metatarsal area and in the rear of the head of the second metatarsal bone, said pad projecting forward beyond said head, and a replaceable insert for modifying the contour of the,
basic sole, said insert extending from the heel portion and having its forward end overlapping the rear portion of said pad and adding to the maximum elevation at the pad forming part of the basic sole, and said insert including an elevated padded area located, when the insert is in place, in position centered approximately beg x g 2,185,526-
heath the midlength of. the shankof the middle metatarsal bone. i
In a shoe, means providing a basic soleincludinga cushioning padhaving a convex upper surface with its pointof maximum elevation be.-
neath .the metatarsal area andin the rear of the head of the second metatarsal bone, said pad projecting forward beyond said. head,'and a re plac'eable main insert forfmodifying the contour of;the basic, sole, said insert extending from the heel portion and having its forward end overlap pingthe rear portion of saidpadand adding to themaxir'num elevation'atthe pad forming part' of, the basic soleQand a second insert constituting. a supplemental variant for modifying a portion, ,of the sole engaging contour of the. main insert and means detaohably securingthe second insert to the main insert.
5. An inner sole-fora shoe having two cushioned areas and the balance of the-solesurfaoe engaging the foot beinguncu'shioned, one of said areas-located to receive the entire heel or the wearer andthe other area extending longitudinally' of the shoe in advance ofthe shank and in the rear of the third phalanges of the second,
third and fourth toe, said-othercushioned area' being confined to theanterior half of the metatarsaldome, to the'heads' of the second, third and fourth metatarsal bones and extending forward of said heads and a removable insert having a substantially uncushioned area overlapping the cushioned heel and, a cushioning area over- 7 lapping the rear portion ofsaid other cushioned area of the shoe.
6. An inner sole for a shoe having two cush- 'ioned areas and" the balance of the sole surface engaging the foot being uncushioned, one of said areas located to receive the entire heel of the wearer and the other ,area extending longitudinally of the shoe in advance of the shank and in the rear of the third phalanges of the second,
third and fourth too, said other cushioned area being confined to the anterior half of the meta tarsal dome, to the heads of the second, third andfourth metatarsal bon-esiand extending forward of said heada'and a replaceable insert constituting an inner sole modulant forthe shoe, said insert having a convexed underside at one end "fitting in the cushioned heel area and having a concaved heel receiving socket and said modulant 'having its forward end substantially fiat and containing in the flatarca, a slightly elevated I cushioning area located beneath the central portion of the metatarsal. dome and having its anterior end overlapping theposterior portion of the first mentioned cushion.
7. An inner sole for a shoe having two cush- I ioned areas andthe balance of the sole surface engaging the foot being uncushioned,'one of said areas being located to receive. the entire heel of the wearer and the other area extendinglongitudinally of the shoe in advance of the shank and the rear of the third phalangesof the second,
third. and fourth toes, said other cushioned area being confined to. the anterior half'of the meta-- tarsal dome, to .the heads of the second, third and fourth metatarsal, bones and extending slightly forward ofsaid head and a replaceable insert having at its midlength upwardly curved side flanges rounding attheir lower edges into "the substantially flat portion of the insert at the shank of the shoe.
' 8. An inner sole iora shoe having. two cushioned areas andthe balance of the sole surface engaging thefoot being uncushioned, one of said conformed to receive the heel of the wearer areas located to receive the entire heel of the wearer and the-other area extending-longitudinally of the shoe in advance of the shankandin the rear of the third phalanges ofthe second,
third and fourth toes, said other cushioned area being confined to the anterior half of the metatarsal dome, to the heads of the second, third and fourth metatarsal bones slightly forward of said heads,a replaceable in having at its midlength'upwardiy curved side. flanges rounding at their lower edges into the substantially fiat portion of the insert at the shank of the shoe, and a second relatively small slightly curved ins rt located onone of the said.
muting a supplemental variant flanges-an eon the sole contour of the for modif g s11 shank portion of t e shoe sole as formed b ythe main replaceable insert;
A replaceable. one-piece insert for modifyingtheinner sole conformation of a shoe, said insert comprising a concaved heel receiving scckand extending v et at one end including an upwardly curvedrirn,
upturned side flanges into which merge the ends of said rim, a shank fitting extension projecting forwardly of the'fianges and having a length to terminate'in the rear of the heads of the meta tarsal bones, said extension being provided adjacentits forward end and centrally thereof with a cushioning: pad located beneath the. anterior half of the three middle metatarsal bones.
11. In a shoe construction, a single fabricated and easily removable insert comprising a heel saddle of resilient material and including a flange outlining the side and rear edge of the samaa metatarsal pad of resilient and a connector of relatively non-flexible material forming the shank portion of the insert and fixedly conmeeting the heel saddle and metatarsalpad in prefixed relative position, said non-fie b portion being provided with an upturned flange lapping one side of the heel saddle flange and ccactingtherewith to form an upstanding side providing a support for one of the longitudinal arches of the wearers foot. I a 1.2. A preiormed'insert for a shoe compri ing in order a. heel saddle having its upper su.
formed integrally of resilient material, a longi-, tudinal arch support. of non-resilient material and ajnietatarsal pad of greater resiliency than thesaddle, the arch support includinga bottomportion'and a side flange rounding downwardlyand inwardly about a curve of short radius into the bottom portion, andsaid insert reducing'inthickness towards a feathered outlining edge.
13.. In a foot controller, a heel portion, a curved upturned arch thrust portion extending anterior ly from theheel portioinsaid heel porti m ing gradually from an interior. portion towards its outer longitudinal edge, the arch thrustpon tiori provided with a pad of approximate elliptical'formadapted tounderlie the inner longitudinal arch at the junction of the scaphoid and the internal cuneiform bones, and rneans for securpost pad adapted to support the forward end of v "the metatarsal arch of the foot and filling the space normally occurring between the foot and 'theshoe sole at the region-posterior of the distal ends of the metatarsal bones at thejuncture of the shank and the forepart of the shoe, which space occurs due to the increased heel height, the longitudinal cross section of the pad being varied in thickness so as to form an uninterrupted continuation of the curvature of the shoe sole and the transverse section being such as to provide a portion of greatestthickness disposed at the inner side of the central line of the shoe, and the inner margin of the pad overlying the shoe upper adjacent the narrowest portion of the insole and forwardly and adjacent to substantially the entire outwardly forwardly curved inner edge thereof.
l5.-In a shoe, a sole construction embodying an insole having a portion of narrowest width and curving outwardly along the inner edge, a pad adapted to support the forward end of the metatarsal arch of the foot and filling the space normally occurring between the foot and the shoe sole at the region posterior of the distal ends of the metatarsal bones at the juncture of the shank and the forepart of the shoe, the longitudinal cross section of the pad being varied in thickness so as to form an uninterrupted con tinuation of the curvature of the shoe sole and the transverse section being such as to provide a portion of greatest thickness disposed at the inner side of the central line of the shoe, and the inner margin of the pad overlying the shoe upper adjacent the, narrowest portion of the insole and adjacent to a portion of the outwardly forwardly curved inner edge thereof.
16. In a shoe, a sole construction embodying an insole having a portion of narrowest width at the junction of the shank and thefore part of the shoe and curving outwardly forwardly .of this point along both the inner and outer edge, a pad adapted to support the forward end of the metatarsal arch of the foot and filling the space normally occurring between the foot and the shoe sole at the region posterior of the distal ends of the metatarsal bones at the juncture of the shank and the forepart of the shoe, the longitudinal,
cross section of the pad being varied in thick ness so as to form an uninterrupted continuation of the curvature of the shoe sole and the trans verse section being such as to provide a portion of greatest thickness disposed at the inner side of the central line of the shoe and overlapping and extending entirely across the shoe upper adjacent the narrowest portion of the insole and forwardly and adjacent a portion of the outwardly forwardly curved edge thereof.
17. In a shoe, the combination of an outer sole, a metatarsal pad of approximate elliptical form located on top of sole in the region supporting the metatarsal arch and located with its part of the outer edge of the pad'overlapping and 7 extending beyond the adjacent edge of's'aid sole and an additional pad overlapping the, rear portion of the elliptical ipad and means for scour-' ing the pad to the "sole;-
. a i 7 18. In a shoe, the combination of a top layer shaped to conform in'one part thereof to the I shank portion of the shoe, an arched member underlapping" theunderface of said top-layer 1D and conforming in shape, to-one of the longitudinal arches of a humanfoot, said arched member'having one of its side edges extended beyond the adjacent side edge of the top layer and a supporting pad secured toone'of the surfaces of said archedmember, the" outer edge'of said supporting pad extending beyond the adjacent edge of the top layer 'and'terminating short of the outer edge of the arched member. I
19. An ,arch support for shoes comprising a sole engaging member adapted to be positioned in a shoe, said' member being shaped to conform to the shank portion ofthe-shoe, an arched me ber overlapped bythe engaging member and ex tending throughout the width thereof, said arched member conforming in shape to the inner longitudinal arch of a human foot and havingo ne of its side edges extendedbeyond the adjacent side edge of the sole engaging member, an arch supporting pad having athick portionand a thin porion, and means for securing said arch supporting pad to one of the faces of the arched member with its thick portion positioned beneath the outer edge portion of the arched member.
20. In a shoe, a sole construction embodying an insole having a portion between the narrowshoe and having an edge curving outwardly and forwardly from said narrowest part, a padsubf stantially elliptical in plan overlapping said part of the insole and adapted to support the forward end of the metatarsal bones of the foot, an edge portion of the pad overlapping a portion of said 1 forwardly curving edge of the insole, the longi Y tudinal "cross section of the pad being varied ir'r thickness so as toform an interruptedcontintransverse section being such as to provide a poruation of thelcurvature of the shoe sole and the tion of greatest thickness disposed atone side a a of the medial line of the shoe and a sole engaging member at least-partially overlapping the pad and extending rearwardly of the pad'a-nd thus overlapping the portion of the insole which stantially elliptical in plan' overlapping said part I I of the insole and adapted to support the forward forwardly curving edge of theinsole, the longitudinal cross section of the pad beingvaried in thickness soas to form an interrupted continua portion of greatest thickness disposed at one side of the medial line of the shoe.
22. In a shoe, the combination of an inner sole, a pad substantially elliptical in plan and with ff one end wider than the other end and having a slightly curved top surface, said pad disposed to support the forward end of the metatarsal arch of the foot, the longitudinal axis of thepad ex-,
est part of the shank and thefore part of the i e6; end of the metatarsal bones of the foot, an edge 5 portion of the pad overlapping a portion of said:
, 65 v tion of the curvature of the shoe' sole and the transverse section being such" as to provide a tending at'a slight angle to the longitudinal'medial plane of the insole, said pad having a point of maximum thickness located on the side of the medial plane opposite the axis of the pad and nearer. the inner thanthe outer edge of the insole and said top surface gradually curving from said point of maximum thickness in all directions towards its outlining edge and a sole engaging member overlapping and projecting in all directions beyond the outlines of the pad.
23. In a shoe, the combination of an inner sole, a pad substantially elliptical in plan and l with one end wider than the other end and hav- 20 the side of the medial plane opposite the axis of the pad'and nearer the inner than the outer edge of the insole and said top surface gradually curving from said point of maximum thickness in all directions towards its outlining edge.
24. In a shoe, the combination of an inner sole, a rubber pad forming a continuation of the inner sole at the heel portion of the-shoe, a resilient layer of soft material covering the ball portion of said inner sole, apiece of thin upper leather covering said resilient layer whereby an inner sole hard at the toebut soft at the ball portion is formed and a metatarsal support having its forward portion overlapping the rear portion of the soft layer and adapted to support the second, third and fourth metatarsal bones, the first and fifth metatarsal bones resting at least partially on the soft layer exterior-1y of the metatarsal support.
BENJAMIN J. SILVER.