US1602393A - Leveling machine - Google Patents

Description

- Oct. 12 ,1926. I Y 62,393

H. A. DAVENPORT LEVELING MACHINE Filed May 26, 1923 utilize for everysize ancl Patented Oct. 12, 1926.

HERMAN A. nav nitr'on'r "or nnooxafon,

amssaoraesngurs; AssrenoR mo UNITED 'sHd-EIM-AeHmEn-Y eonrotterrongois PAT ERSON; nnw asiasnyf LA ooneona'rmn on JEBSESEf s LEV MNG Application fil s. M ize,

last} in its; spindle hole; and; in i the relatiiie movement-s: ofthe leveling toolon roll and t eie :k: e g 1 s o h f'sho l pp ime 9; that. t nemi s: ves; the/755116 edges; ot-the sole Withits-axis at a's'ub'stantia l inclination to the. height of theQshoe, thus-applying:pressure th sho The. lte l liey, e r is the% roll, 3 as it operates: 'along' the opposlte sideedges of; the: sole under the hea'w spring pressu ge necessary for'shaping 'the sole-.-in .a satistactoiiy manner, to swing the shoe about the 'heel pin, first inione. direction and-then; in; the opposite direction;

To assist in supporting the shoe. against this-laterafhpressnre and against downward p erep erelin ma n a i mo' ly providedj with; atoerest hollowed out to receive thetoeend. of the shoe and faced with leather. Considerations of economy, bothvin IQSPQClZJlBO machine equipment and in respect; to the operatoiis time, have not rendered 't practicable: to provide anclfto' 'style. of shoe a toe rest exactly fitted; to the shapeof theQtoe of th shoe. Under most conditions; therefore, thereis opportunity for the toe to slip to some extent on the toe rest underwthe lateral; pressure 'o'l the leveling tool nor is thisvtendency entirelyovercome even Where the toe restis shaped to conform closely to the contouroi; the toe. This tendency of the toe to. slip on thejtoe rest has often resulted in-"dainage to shoes by reason of the rubbing action of the rest on the surface of the upper leather.

While therefore; the; object has been heretotore to prevent, as far as practicable, any lateral movement of the'shoe'in the leveling operation, there are other objectionable resultsthat are due in large-measure tofthe absence (if-provision for substantial relative movement; the shoe the; leveilii g tsol directed laterally of 1.

p is likely, tolocour' As leueling niachines are constructe' l, the support for the leveling l P rmitsthe ll? t infaccordance with e. as aevariatiohs' in; the contour o he bowe of h ho j, nly in d r iens height'wiseof the shoe," Such IQOVBIIIQIIl] of the roll',"when"the rolfl is inclined or tipped move or. e db ily,

est-h ve e b es lt n f ly f m variations in the, {contour 'o'r slope .ofgthe biotma face f he 9 6; ut {also ro var e- 7 time n. he W dth; Q po t ns f e hoe-3 It w li lm y e f- Jcle t' t n p s inetfqr ex mp e, Y rem l e han to. the a l; o a the shoe h F i ed r011 i ifte lgf b ibesieus gt ba f iu li i 0 is ighe t en.- li: think i alslofb ecause the ball is wis thera ies Such me bf i hg r 1 n-7 lance "uuth'variatione i n the cont ur oi shoe, caIlfSeS the r llz'to 'rub rnore or "less on the margin of'th'solej' In operating along the side edgesof thefs'ole the roll thus has .at-t me mb ned rollingandfm bin actio sandi t s treql ently r sul s. a i i- 'mi te' t jumpingh i ll fr m, n *P t wee wllic nrq u l es he e the tempered sole] an objectionable wrinkled orWaj/ycondition I 1 H I It 'iitillf be readily. unjde'rst rubbing action of the inclined roll on the margins otthe sole ineitsjupward or clownwa'r'dfmoi ement, viI1-. so far as such action oocurs is due to, the ta ct that there is no previisioh- (f r? sub n ial; C mpe at n 'inoyeinent oi eithertheshoe or'the roll in l directions 1 late'ralbi is true;- as. above stet i l, hat le toe s as V heretpijorej constructed frequently permitsl some; lateral, displacement: ot'fthe toe of fthelshoe this, cli s placeinentfisnot enough to' alleyi'ate substant'a'lly the objectionable rubbing. of. the roll on a y portion of the ,inarg in of: the. sole. s- '1*uith'r'in0'1:e, such displacement ofthe toe on leather toe rest 7 atonee, and thereafter in the. continued 1. action; of the roll) along the edgelot the sole the shoeis supported against further lateral yield andgthere'is consequently not-hing, then to l preyent' further rubbing o'f theirollf 'on the shoe. Moreover, afterthe slioejliasj-been shed" over "liar" exampleg by the "aetieeegjthe tell en oodgj that 7 this i 'lof thes'shoe. Nhileit CII the Wide ball portion of the sole, it remains in that position, and when the roll then passes to the narrower part of the sole near the. toe, it does not apply the pressure that it would if the toe were central. Similarly, when the roll tips to the other side or" the sole, it begins to act on that side with the toe in an abnormal position, until it suddenly effects a displacement of the shoe in the opposite direction to the limit permitted by the toe rest. It will thus be seenv that provision merely for lateral di placement of the shoe in response to pressure, as by slipping of the toe on a toe test, does not afford any material improve ment in the conditions under consideration since there is nothing which acts to return the shoe or to centralize it. Lateral movement of the shoe in one direction can compensate only for vertical movement of the inclined roll in one direction, for example when the roll moves upward, and in order properly to counteract the tendency for the roll'to rub on the sole when it moves down ward, a lateral movement of the shoe in the opposite direction is required. Even, therefore, if toe rests as heretofore constructed afforded provision for substantial lateral movement .of the shoe, conditions affecting the action of the roll on the edge of the sole would not be materially improved, and in some respects would be still more detrimental to good work.

The present invention accomplishes a very important improvement in leveling machines by provision for substantial relative movement of the leveling tool and the shoe laterally of the shoe under conditions that insure the proper action of the tool on the different portions of the shoe. In one important aspect, the invention provides for relative movement of the tool and the shoe laterally of the shoe in different directions at different times in the progressive action of the tool along the side of the shoe, thus avoiding objectionable rubbing of the margin of the sole where pronounced variations in the contour of the sole are encountered by the tool, and at the same time maintaining such a relation between the tool and the shoe as to insure proper leveling pressures on the different portions of the margin of the sole. In the construction herein shown as an illustrative em; bodiment of the invention'provision is made for relative yield of the shoe and the tool laterally of the shoe, in response to such increase of pressure as results, for example, when the tool encounters the wider and higher portions of the sole, under control of resilient means which acts, as permitted, to effect relative return movement of the shoe and the tool. For the purposes in view the machine herein shown comprises of the shoe on the toe rest.

in its organization a leveling roll which is yield-able heightwise of the shoe, and a shoe. support having shoe positioning and controlling means which is resiliently yieldable laterally of the shoe. More particularly, in the illustrative machine provision for such lateral yield of the shoe is afforded by the use of a toe supporting cushion or rest of soft rubber of such thickness as to be deformed or distorted to a substantial extent in response to the pressure of the leveling tool laterally of the shoe. While permitting sufficient displacement of the shoe to avoid objectionable consequences such as heretofore encountered due to the slipping of the roll on portions of the margin of the sole, for example in passing fromthe shank to the ball of the shoe, this toe rest also tends constantly to return the toe to a central position. This not only insures that the shoe will be properly cen tralized as the roll tips from one side of the sole to the other, but also serves to prevent the roll from rubbing on the sole as narrower portions of the sole are presented to it, while at the same time insuring a proper degree of pressure on the narrower parts of the sole as well as on the wider parts. A still further advantage in'the use of this toe rest is that when the roll is horizontal it permits the shoe to be depressed somewhat as the roll acts on the high portions of the sole, and presses the shoe up toward the roll as the latter passes to the lower portions, thus contributing to an even rolling action.

A further very important object a'ccomplished by the present invention is the elimination of objectionable results heretofore encountered due to the rubbing of the too The soft rubber toe rest clings to the'surface of the upper, even when the shoe is displaced laterally to a very considerable extent. In other words that portion of the rubber which is in contact with the shoe moves with the shoe, and there is thus no danger of damaging the surface of the upper.

These and other features of the invention comprising certain combinations and arrangements of partswill be understood from the following description of a pre ferred embodiment thereof selected for purposes of illustration and shown in the accompanying drawings, in which,

Fig, 1 is a fragmentary side elevation of the machine;

Fig. 2 is an enlarged perspective detail; and

Figs. 8 and 4 show modifications of the toe rest.

The illustrated machine is also shown and described in the joint application of E. Winkley and myself, Serial No. 642,

'tain shafts 16 wh' ch at their 678 filed May 31, 1923 tOyWlldOll reference may be made fora fuller descript on of features not hereiirfully described.

The main frame lOwof the machine has he leveling arms 12'pivotedin trunn-ions in its upper rear portio'n as shown at 14 These leveling arms are tubular and con- 7 7 forward ends carry the heads 18' in which the leveling mince are pivotally mounted. These shafts are ree able by mechanism not necessary to be described here as it is not a part of the present invention. Reference may be made to the application above mentioned fora of it, or to the patent No; 889,- l I une 2, 1908, on the application of E. E. inliley, which shows a similar meihauism. Its operation may, be briefly described by saying that a main cam pro duces a standard tipping cycle, and other adjustable cams modify'this "tipping cycle accord ng to their settings by the operator.

'lhe'shoe is held' on together at 60 to permit adjustment to accommodate, different lengths of shoes and 'mouuted on a. shaft 62 which is rocked by link and lever mechanism operated by 1,011,301 issued Dec. 12,1911 on the appli- 1,239,664, on the application of cation of E. Winkley, andissued. Sept. 11, 1917 VJ. C. Easter, and need not scribed here.

The leveling rolls are resiliently forced down upon the shoe by thepressure of springs 68 mounted in vertical channels in the main frame. These springs press at their bottom ends uponvlevers their rear ends on the main frame at 72 and at their front ends to vertically extending links 74 which are pivoted to the leveling arms 12. The upper ends of the springs are engaged by plungers 76 provi ded with lugs 82 with which the. arms be further de- St on the rock-shaft 86,-which is, mounted or. the frame; are in engagement.

The rock-shaft 86 is operated'by a link 90 pivoted to an arm 91 on the shaftand to the end of a ing a roll 96 contacting witha cam- 98 mounted on the mainshaft25. The lower arm of the link 94: has a slotted bearingon the main shaft to hold it in position. The

tion. The weight of the leveling at these times 18 carried by p 7 jack comprising. a heel post- 56 and a toe post 58 pivoted operation.

' dinary leveling pressure. 70 pivoted at.

"such as substantially equal, forexample, to 535 per v lever 92 upon which is adjustably mounted the end of a link 94: havand the low l once during a leveling cycle and its higli'. and low points determine the pressures an plied at different points on the shoeand at diiferent times during. this cycle.

In the present machine the cam 985is constructed'to relieve the impressed mechanical pressureentirely' at the instant that the roll is passing over the toe tip at the beginning and end. of the leveling opera arms 12 upwardly spring pressed 'plungers 100 arranged to carry this completely. In the joint application above referred to,-thi's structure is very'fully described and: claimed.

The leveling roll 20 itself" is mounted: in a cariage having are or segment-shaped lateral extremities at112uhereby it may be rotated about a vertical axis in thehead and held in adjustable position by a screw and slot arrangement at ll lf This enables the roll to be adgusted to surtcertain kinds and conditions of work. A pad 116 rests upon the top of the rollto. wipe oil dirt A 118 'is mounted in the head 110 to extend outwardly over the front-of the roll and serve as a guide for the jacking of the toe "tip Ofitl16-Sl1OQ-SO that it maybe placed atthe'proper height prior to the beg nning of. they leveling The toe post 58 has at its: upper end a socket 120 arrangedto hold a toe rest .122 provided for purposes of the present invention. This fee rest is made of resilient material of such thickness as/to permit a very substantial deformation under By this is meant that it can bereadily or inchwunder this pressure cent of the height and width dimensions of the toe ofa shoe. 1 have found soft'rubher to be excellently adapt-ed for the purposes of this rest.

This rubber in the form shown in Fig. 2, is substantially flat on top,not beinghoh lowed out in any effort tofit shoe. The ordinary jacking pressure exerted through the mechanism at 12% which is 'well known and need not be further describedhere, will cause: the toe to sink appreciably into the rubber before the leveling operation begins, as shown'at 126. a

Figs. 3 and i show two modified forms of rubber block which have certain advantages. The block shown in Fig. 3 has a slight depression 128 to serve as a gage for the longitudinal positioning of the shoe. in the jacking operation. It is not contemslate at that this depression I shall necessarily it the toe; it simply serves as a mark that load, but not sul'istantially more. As soon as the strong springs 68 come intoac- 'tion, the, effect of the plungers is masked deformed by amounts the toe of-the the operator can see. Fig. 4 shows a rubber block with a raised rib 130 for the same purpose.

In order to understand the advantages of this invention it is necessary to consider the nature of the pressures and reactions in the leveling machine. The trunnions at 1% are horizontal, so that the levelingarms 12 can move only in a vertical plane. The axis at 62, on which the jacks rock. is parallel to the axis at 1%, so that the relative movement of the shoe and leveling roll in a direction lengthwise of the shoe is also in the same vertical plane. \Vith the parts in this relation and with the leveling roll inclined to the horizontal as it frequently is in operating along the margin of the sole at the side of a shoe, the pressure of the roll tends to swing the shoe laterally about the heel pin, and this tendency is considerably increased as the roll encounters the wider and higher portions of the sole, as in passing from the shank to the ball of the shoe, and is thus forcedto swing upwardly. If it were not for provision for substantial relative movement of the roll and the shoe laterally of the shoe at such times, the roll by its upward movement in a direction in clined to its axis would rub on the margin of the sole with danger of objectionable re sults such as hereinbefore set forth. The soft rubber cushion or toe rest 122, however, yields with the shoe. In response to the pressure of the roll, to such an extent as to counteract the tendency of the inclined roll to rub on the sole. In other words, the result of the lateral yield of the shoe and the vertical yield of the roll is, in effect, a relative yield substantially perpendicular to the surface on which the inclined roll is operating, so that the roll has simply a rolling action without substantial rubbing action. Moreover, where the contour of the shoe results in a downward 'movement of the roll, the resilient toe rest acts to effect a return movement of the shoe laterally as permitted by the lessened resistance of the roll. and thereby counteracts the tendency of the roll to rub on the sole at that time also, while assisting in maintaining proper leveling pressure on the margin of the sole. Similarly, when the roll tips from one side of the shoe to 'the other, the shoe is ai'itomatically centralized, so that it is presented in proper relation I for the roll to begin its operation on the opposite side of the sole. An important factor in these desirable results is the fact that the soft rubber toe rest clings to the surface of the upper so that the shoe as it yields carries the top of the resilient toe rest with it, and a further very important advantage in thisis that no rubbing takes place between. the and the. toe rest, so

that dangerof damage to the surface of the upper is avoided.

There is still another important advantage in the use of a toe supporting cushion or rest such as herein described.

According to the former practice, as hereinbefore explained, it has been the custom to provide toe rests which were shaped, as well as might be, to the shape of the toe of the shoe, for of supporting the shoe against the lateral pressure, and avoiding the scratching and rubbing consequent on any yielding to such pressure. It being practically impossible to provide and use a toe rest exactly fitted to each shoe, this only partially met the rub bing difficulty, and moreover, when small toes were put into rests too large for them, the shoe had a tendency to settle down and bacl: into the rest so far that the rest instead of the shoe tool; the pressure of the roll as it tipped around the toe. Inasmuch as a tipping of the roll around on the toe end of the soleis necessary in order to shape the shoe properly at this point, the machine failed to do good work in this regard under the described circumstances. Vi ith the machine of the present invention all shoes are aclred to the same height on the soft rubber toe rest and proper and uniform treatment of all shoes results.

Having described my invention, what I claim new and desire to secure by Letters Patent of the United States is 1. In a leveling machine, the combination with a leveling tool arranged to apply pressure to the margin of the bottom of a shoe in a direction inclined to the height ofthe the purpose, among others,

shoe and to act progressively on different portions of said margin along the side of the shoe, of means for relatively positioningthe shoe and the tool constructed and arranged to provide for relative movement of the shoe and the tool laterally of the shoe'in different directions successively in accordance with variations in the contour of the shoe in the progressive action of the tool along the side of the shoe.

2. In a leveling machine, a leveling tool arranged to apply pressure to the margin of the bottom of a shoe in a direction inclined to the height of the shoe and to act progressively on different portions of said margin along the side of the shoe, controlling means for the shoe to position it relatively to the tool, and controlling means for the tool to press it upon the shoe, said controlling means being constructed and organized to effect relative movement of the shoe and the tool laterally of the shoe in different directions successively in accordance with variations in the contour of the shoe in the pro ressive action of the tool along the side I tile shoe.

. movements of the shoe and if i') controlling means affording f the shoe and ,tions of the margin of the sole meat-es l 3. In a leveling machine, the combination with a leveling roll arranged to act along the margin of the bottomo't' a shoe with its axis inclined to the height of the shoe, and

provision for relative movement of the roll and the shoe heightwise of the shoe in directions inclined to the axis of the roll, 'oiadditional controlling means constructed and arranged to rovide for relative movement of the shoe-- and the roll laterally oi" the shoe in oppositedirections to counteract the tendency. for the roll to rub on the" shoe in the relative the roll heightwise of the' shoe. 7

4L. In a leveling machine, the combination with aleveling tool arranged to apply pressure to the margin of the bottom'ot a shoe in 'a' direction inclined to the height oi the shoe and to act progressively on'difterent portions the shoe, of means for relatively positioning thejshoe 'andthe tool constructed and ar ranged to. provide for relative movement of the'ltool laterally of the shoe in responseto resistance to the leveling pressure and" to eiiect relative return movement of the shoe and the tool in accordance with variations in the 'contour oi the shoe in the progressive action 'otthe tool along the side ot'l the shoe.

In a leveling machine, a levelingftool arranged to apply pressure to the margin of the bottom of a shoe in a direction inclined tot-he height jotthe' shoe and to act. progressively on different portions of said margin alongfthe side of j the shoe, a support for said leveling tool,and a support for the shoe, one of said supports being yieldablein a" direction heightwise of the shoe, and the other support being ,yieldable laterally of the shoe in accordance with variations in the contour oi the shoe in theprogressive action to the tool alongzthe side. oti'the shoe.

6. In a leveling machine, the combination with a leveling tool arranged to apply pressure tothe margin of the sole of a shoe in a directioninclined to the height of the shoe and to .act progressively .on different ,por-

' along the side for relatively of the ,shoe of resilient. means positioningtheshoe and the tool constructed and arranged to provide for relative movement of the jshoe and the tool laterally of the shoe as the tool encounters the widerpoi tions of the. sole and to eliect a relative return movement thereof as narrower portions of the sole are" presented to the tool.

'7 a leveling 1nachine, the combination with a leveling tool arranged to apply pressure tothemargin ot'the sole of a shoe in a direction inclined tothe height of the shoe and to act progressively on diiierent per-- tions of the margin of the sole along the side of said margin along the side of are presented to the tool.

8; In a leveling machine,- "the combination with a. leveling: tool arranged to i apply pres sure to the margin of the sole ot a shoe in a direction inclined tothe height of the shoe and-to act progressively on different pen tiions of themargin or the sole alon'g' -the side ot theshoe, of device l'or' relatively positioningth-s'hoe and "the tool comprising resilient m'eansafiording provision for-sub s'tantial relative yieldot the shoe and the tool laterally of the shoe .in response tothe leveling pressure and tending to eliect relative return movement oi the shoe. and: the tool laterally of the shoe tomaintain constantly proper leveling'pressure on the shoe.

'9. Ina leveling machine, the co'mbination with a leveling tool arranged to :applyp'ressure to the margin of the sole of ashoe in a direction inclined toythe height ottheshoe andto act progressively:ondifierent portions of the margin of the sole along the side :01"

the shoe, of means for positioning the shoe constructed and arranged to provide for lat eral-movement of theshoe relatively to" the tool'and to eiiectreturn movement of the shoerelatively to the tool. I

10.- In a leveling machine having f shoe supportingmeans and a leveling tool arranged toapply pressure to the margin'of the bottom 'ofthelshoe in' a directi'oninclined to the height otthe shoe,

mechanism for relatively positioningthe shoe andthe'tool come,

prising resilient lme'a ns constructed and 'ar rangedto, permit substantial relative yield between the shoe and tool in a"directi'on inclined to the. height-sot the'shoe: and substantially normal'to'jthat, portion of the suritace jot heshoe upon whichthe tool is operating. r

11. ',In a leveling machine havingshoe supporting. means and a leveling etoolgarrang'ed to apply pressure 'to'the margin of -the bottom ofthe shoe in a directioninelined to the height of :the .shoe, the combination with controlling means arranged to permit the tool toyieldhei htwise of the shoe only in responseto variations-in the contour of-the shoebottom, of additional controlling means comprising. a resilientdevice affording provision for substantial yield of the shoe laterally. ingthe operationof the tool on the shoe.

In levelingrmachine, the combina= 1 tion with a leveling roll arranged to operate along the margin of the bottom of a shoe with its axis inclined to the height of the shoe, of a shoe support comprising a resilient response tothe pressure of the roll and tending constantly to return the shoe to a central position.

13. In a leveling machine, the combination with a leveling roll arranged to operate along the margin of thesole of a shoe with its axis inclined to the height of the shoe, and resilient means permitting the roll to yield heightwise of the shoe in response to variations in the contour of the shoe, of a shoe supporting toe rest comprising resilient means arranged to permit substantial lateral swinging movement of the shoe about an axis at its heel end under the pressure of the roll and acting to return the shoe to a central position when permitted by the roll.

14. in a leveling machine, a shoe supporting jack, a leveling arm carrying a tool and pivoted to move normally in a plane extending heightwise of the shoe, means for rela tively oscillatin the arm and jack in said plane, and means for eiiecting relative tippin movements between the tool and the shoe about an axis generally parallel to the longitudinal axis of the shoe as the tool passes over the shoe, said jack comprising a device contacting with and supporting the toe of the shoe and resiliently permitting substantial lateral displacement of the shoe under lateral stress without relative moveient between thes hoe and the shoe engaging surface or said device during the leveling operation. p

15. In a leveling machine, a shoe supporting jack, a leveling arm carrying a tool and pivoted to move normally in a plane eXtending heightwise of the shoe, means for relatively oscillating the arm'and jack in said plane, and means for effecting relative ti ping movements betweenthe tool and the shoe about an axis generally parallel to the longitudinal axis of the shoe as the tool passes over the shoe, said jack comprising a soft rubber toe rest of substantial thickness for resiliently supporting the toe of the shoe and permitting it to yield under lateral stress While clinging to the surface of the upper and for restoring the shoe to normal position when the lateral stress is relieved.

l6. Ina leveling machine, a shoe holding means comprising a'heel post, and a toe post having a toe rest formed of a substance so resilient as to be distorted .heightwise and widthwise to an exten'tainounting respec tively to substantially 25% ofthe height and Width dimensions of the toe of a shoe under the stresses of the leveling operation.

17. In a leveling machine, a shoe holding jack, and a leveling tool arranged for movement generally perpendicular to the sole of a shoe on the jack, the ash being provided with a toe rest for the shoe formed of soft rubber of such thickness as to pernit a substantial yielding of the shoe when the pressure of the leveling tool is applied to the shoe and acting when deformed to force the shoe toward the leveling too. p

18. In a leveling machine, a shoe holding jack, a leveling arm arranged for pivotal movement in a single plane general'y perpendicular to the sole of a shoe on the jack, means for relatively oscillating the arm and jack, and a soft rubber toe reston the jack arranged to support the toe of the shoe and to yield heightwise and widthwise to an eX- tent amounting respectively to substantially 25 it of the height and Width'dimensions of the toe oi" the shoe when the leveling arm is transferring its pressure up the shank of a shoe toward the ball.

19. In a leveling machine, shoe-positio11 ing means comprising a toe-supporting cushion of soft rubber of such thickness as to yield substantially under leveling pres sure directed later lly of the shoe and adapted to cling to the upper of the shoe during said yield to avoid scarring the upper.

20. In a leveling machine, a shoe'holding means comprising a toe rest formed of resilient material and constructed to yield substantially under pressure directed laterally of the shoe and to cling to the contacting portion of the shoe upper during said yield,

whereby scarring the upper is avoided and the shoe is returned to normal position when the pressure is removed, in combination With V a leveling roll and means; for tipping it aroune on the end of the shoe toe' during the leveling operation. 7

21. In a leveling machine, a shoe holding jack, a leveling arm carrying a roll, means for relatively oscillating the arm and the jack, means for tipping the roll as it passes over the shoe to adapt its position to the contour of the sole ofa shoe on the jack, and a soft rubber toe rest on the jack ar ranged to support the toe cit the shoe and of such thickness as to yield substantially in directions laterally of the shoe in response to pressure of the inclined roll onrthe shoe.

22. A toe rest for a leveling machine hav ing a generally fiat upper surface but having also portions of elevation different from that of the remainder to serve as a gage in jacking a shoe.

In testimony whereof 1 name to this specification.

HERMAN A. DAVENPORT.

have si ned m i D CERTIFICATE OF CGRREGTWN.

Patent No. 1,602,393. Granted ()etober 12, 1926, to

HERMAN A. DAVENPORT.

It is hereby certified that error appears iii the printed speeifieetioe ef the above numbered patent requiring correction as feiiews: Page-3, time 85, fer the misspelled word "eai'iage" read "cesriage"; iiiie 114, aitei" the were "ruebef' insert the werd and cemma "bleek,"; page 4, time 33, aiter the were "sine" strike out the period and insert a comma and fer the WOEd "in" read "iii"; page 6, line 68, claim 17, fer the were "tee" read "tool"; line 71, claim 13, for the misspelled word "geeeraiy" read "geiieraiiy"; and that the said Letters Patent should be read with these cerreetiene therein that the same may eenierm to the record ef the ease in the ?atent Gfiice.

Signed and sealed this 28th day of June, A. D. 1927.

v M. J. MGQRE. Seal. Acting Commissienes et Patents.

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