US1513804A

US1513804A - Method of and machine for shaping heels

Info

Publication number: US1513804A
Application number: US563900A
Authority: US
Inventors: Eich Frank Anton
Original assignee: United Shoe Machinery Corp
Current assignee: United Shoe Machinery Corp
Priority date: 1922-05-26
Filing date: 1922-05-26
Publication date: 1924-11-04
Anticipated expiration: 1941-11-04

Description

New 4 1924. 1,513,804

- F. A. ElCH METHOD OF AND MACHINE FOR SHAPING HEELS Filed May 26, 1922 4 Sheets-Sheet 1 4 /NVENTUR- @K M Nov. 4 19% F. A. EICH METHOD OF AND MACHINE FOR SHAPING HEELS 4 Sheets-Sheet 2 Filed May ,26, 1922 Nov. 4 192% F. A. ERCH METHOD OF AND MACHINE FOR SHAPING HEELS Filed May 26, 1922 4 sheets-sheet 5 WEDGE FACTOR R m m .F E G D E W 7 Wm .m.

R m f w M Nova 4 1924:

F. A. EiCH METHOD OF AND MACHINE FOR SHAPING HEELS Filed may 26, 1922 4 Sheets-Sheet 4 Illlll: nnnn Patented Nov. 4, 1924:.

PATENT OFF-,ICE.

FRANK ANTON EIGH, OF ROCHESTER, NEW YQRK, ASSEG-NOB IO UNITED SHQE MA- CHINERY CORPORATION, OF Iik-ZEESO'N, NEW A CORPORATION OF NEW JERSEY.

Application filed May 28,

To all whom it may concern:

Be it linownthat I, FRANK A. E1011, a citizen of the United States, residing at Rochester, in the county of Monroe and State of New York, have invented certain Improvements in Methods of and lifllttGlllIlQS for-Shaping Heels, o1. ivl1ich the following .description', in connection with the accompanying drawings, is a specification, like referencecharacters on the drawings indicating like parts in the several figures.

invention relates to heel-shapingand more particularly to shaping the periphery as distinguished from the breast of a heel. For the purposeof considering certain problems With which the invention is concerned heels may be said to be divided into tWo classespviz. those having a Wedge formation and those having no such formation, or, if any, only a negl gible degree. The reason forthus classifying heels Will appear in due course.

its a general rule mens and boys heels, alsosome low heels for Womens sport shoes, have no edge formation, or, if any, only a negligible degree thereof. A so-called Wedge heelhas greater height at the back than at the breast, in consequence of which the heel-seat l ne is inclined relatively to the tread or toplift. Louis heels, military heelsandCuban heels are Well-known examples of heels having pronounced Wedge formation and are diflicult styles to trim by methods heretofore practiced.

In shaping Wedge heels by machinery the Wedge formation has heretofore made it necessary to perform two separate shaping operations, by the first of Which only that portionlof the heel eigclusive of the Wedge porltie eeh e haPQd-a e by con which the wedge portionhas been shaped si- Qninltaneously With ivliatjis terlned a randing operation. In 'otherwords, inshaping by machinery a heel having a Wedgeforma- I tio n it"has always heretofore been necessary tofrestrict the first shaping to a range no greater than the lowest part of the heel and to shape the Wedge or base portion by a subsequent operation. lVithout reciting all the disadvantages of such two-step shaping two major disadvantages may be mentioned.

pletely and satisfactorilyshaped, in p eration. In this respect affeatu re; invention consists f in certain novel features "dra atist-i611 and organ'zaaent" METHOD OF AND MACHINE FOR SHAPING HEELS.

1922. $eria1 No. 563,900.

une is that the total time required for shaping a heel is about double, and the other and more serious one is that it; is practically impossible to merge the second cut Withthe first-so smoothly as to avoid forininga ridge, angle or other irregularity that requires so much scouring that it cannot be eliminated without sacrificing the true shapeand With- ;outdevoting too'muchtime to scouring.

In view of the foregoing and other conditions an object of the present invention is to providelfor shaping the periphery of a heel entirely in one operation. i

A feature of the invention consists in an organization including a cutter-head, a movable counter guard, and a movable toplift guard, such that both guards may be moved relatively to the cutter-head and relatively to each other While a trimming operation is 1n progress, and mechamsmfor controlling the movements of the guards however it may be necessary to do so to produce any desired shape. So far as I am aware no prior heel-shaping machine has been organized as above stated. In most cases the toplift guard has been fixed and the counter guard "has been displaceable by the' vork and urged toward it by alightspring, although for trimmingspring heels, itvhas been proposed to fix the counter guard and to provide alight spring to urge the toplift guard toward it so that the toplift guard may be displaced by the Work Another object of the invention is to provide a heel-shaping machine that Will be adaptable, in consequence of certain adjustments, in some cases With, and mother cases ithout, a change of cutters, toineetftlm requirements of all styles of heels so i any 1heel, of Whatever'style, .may comif l haili e ile shimmy i i ii ulated to meet'the requ rements o'fany': recognized style of heel. For examplein the use of the illustrated machine, thetoplift guard and the counter guard may both be fixed, or either one may be fixed and the other one moved to va 'rd and ,frtom' t, or

either one may be controlled in such a way that it will have a relatively slight movement while the other may have a greater range of movement. Also, either or both guards may be adjusted and fixed or movably controlled to utilize any desired part of the cutter and to cover those parts that are not suited to the particular requirements in any case. In this way certain parts of the cutter may be covered and uncovered by one guard or the other or by both, as the case may be, while a trimming operation is in progress. This feature not only renders the machine universal for all styles of heels but affords a considerable variety of shapes from a single set of cutters and provides for taking care of all recognized styles with only three or four sets of cutters.

Another object of the invention is to provide an improved construction by which the entire thickness of the toplift may be trimmed while the body of the heel is being trimmed. The usual practice is to use the toplift as a templet to determine a course of trimming, but heretofore a considerable portion of the thickness of the toplift has been maintained out of contact with the trimming cutter by the guard with which it cooperates. In consequence of such practice it has been necessary subsequently to complete .the trimming of the toplift by scouring, and for some styles also to reduce the body of the heel considerably by scourin This is objectionable not only because of the time required for the scouring operation but also because it is practically impossible then to preserve the desired profile and contour imparted by the shaping cutter.

In the latter aspect the invention provides an improved organization including a novel toplift guard by virtue of which the entire thickness of the toplift may be subjected to the trimming action of the cutters while the other parts of the heel are subjected to such action, without sacrificing in any degree the utilization of the topliftas a templet for determining the course of trimming. An advantage of this feature is that the degree of scouring necessary to finish the surface is so slight that the shape imparted by the shaving operation may be substantially preserved. The finished work may therefore be substantially identical in contour as well as in profile with predetermined standards, and uniformity is assured.

Other objects of the invention are hereinafter described and other features are hereinafter described and claimed and are illustrated by the accompanying drawings.

Referring to the drawings,

Fig. 1 is a top plan view of a machine organization embodying one form. of the present invention;

Fig. 2 is a diagrammatic view similar to Fig. 1 showing some of the principal elements in successive positions that would be appropriate in the course of. shaping one style of heel;

Fig. 3 is a digrammatic view showing one style of Louis heel in various positions in operative relation to a rotary shaving cutter by which its could be completely shaped in one operation, and indicates various eX- tents to which the profile of the cutter would be utilized at the various stages-of shaping;

Fig. 4 is a perspective view including the shaving cutter, the toplift guard and the mechanism by which the latter may be shifted and controlled as occasion may require;

Fig. 5 is an elevation partly in section of the mechanism at the right of line 55 of Fig. 1; .7

Fig. 6 is a front elevation of the mechanism included in Fig. 1;

Figs. 7 and 8 are diagrammatic views including side elevations of typical examples of heels having wedge factors. A

The elements included in Fig. 1 occupy their normal or initialpositions although-no attempt has been made in this figure to represent adjustments for any particular operation or style of heel. The purpose of this figure is to illustrate a suitable form of mech anism without specialregard to any particular adjustment of the adjustable ele ments for any predetermined conditions. For example, the counter guard hereinafter described is'not adjusted so closely to the shaving cutter as it would ordinarily be under operative conditions but the mechanism includes adjusting means by which its desired relation to the cutter may be readily established. A rotary cutter head including detach-ably clamped cutters 10 is carried by a shaft 11 mounted in suitable stationary bearings one of which is indicated at 12. No

driving mechanism for the cutter shaft is illustrated sine any suitable or well-known driving mechanism may be used. The illustrated cutters have a profile suitable for trimming a Louis heel and other styles, depending upon the extent to which and the manner in which the counter guard and toplift guard are'positioned and controlled as hereinafter described. In accordance with well-known practice the cutters 10 may be replaced by cutters of other profile so that the machine may be used to shape all recog nized styles of heels. For example, instead of using the illustrated cutters which have a profile characterized byan ogee curve, cutters having a simple curve or cutters having a straight profile may be substituted. Three sets of cutters having the characteristics above mentioned would be sufficient, according to the possibilities of this invention, to shape nearly if not quite all the recognized styles of heel, although some manufacturers might prefer to supplement such equipment tters by another not :having a similar I egree of curvature. J p tzgu'ai'd, whichiis shown best by and iwxembodies novel :features of ,6 construction-.aiidfis c .ontrolled 'as to i position i-byi nouellmeehanism, each of which novel ft ibptes ianovel result to the 37 ngf.o-f.asheell There are three princi- .pal',parts to theqtoplift guard, including a :1 gt'igeaclsengagingl member. shown 1 in the form OffiipblQGklid, (and two cooperative abutment gm'embiers 11A, 14 spaced apart. one from the .iother and arrangedto engage the periphery Lofjthetop-liftl' "The members is; are so position'ed relatively :toith e shaving cutter that ,th'e:latterim'ayyshave,the entire thickness of thatliportionotfthe topliii'tthat bridges the between ;them. QThc members 11 iare preife'rably mounted soasto be adjustable ward and zifroi'n each other to vary-the (1th 0 16h gap and-therefore to regulate e extentitoiwhiclr theperiphery of the top d ift may proiectibetween:them to be oper- -;at ed;1up ont}by the cutter. ,For c this purpose :the tread-blocklm. is provided with dovetail formaftionsLotto receive correspending format tionswonflthemembers v14, the latter icing :thfus rendered capable of vertical adjustlm'ent. @The drawings include a convenient form of, adj ustingI means comprising a SCl'C w imember'fl5 having a right-hand screwthreadat its lowerendto adjust the lower 7 member 14,,a11d having a left hand screwthread at itsupper eriid'--for .adjustingthe upper member-114C. :Endwise .moveme'nt oi fthepi scre w member is prevented-by a pin 16 ,set gin -the member 513 in tangential relation .1150 .a ,bfoncentric groove ,17 fforined in the gshank gof thescrew member. eT-he screw member is .--sh0wn. having a knurled head at its ,uppe rzendso 'thatgit m'ay be turned with;thefingers. Under some conditions it ,might be' desirable to adjust themembers 14L .s.o closelylonefto another asto maintain the gperipher-y 10f the toplift out of the-field oi operation of the shaving cutterbut when ,;tI'iI nm iiig a heel having an inclined profile 'calling for a-ibeveled ,toplift the members :14 Jmay=be separatedfa-r enough to permit Zth;topliftto extend through, the gap so as to partake oftheeshaving operationwhile z-i h j he i ieet e s s api g th y Of the of on th feeier s h ter if Tam i-i e men-1bers-l3 4 14c maybe adjustntirety -towai d and from; the axis o even ter. 1101 this plurpose :the member 13 is provided With a dovetail torinatioirlS to slide .in a correspondingly portiongof a bracket 19. Adjustment i a -ih mb -iscrew ithe screw-threaded por- ';:-t1o n -of .vvhich engages a portionfzoi the gaske l The bracket 19 is mqvably-supportedby :For this purpose the in vided' with 'tter ki nd-emay; be made: by turning tion being adapted to shape the path of movement of the toplift guard to conform to the proi'iie of the shaving cutter, whatever forin saidprofile may have within the limits. ofthe range traversed by said. guard; As shown thelbracket 19 is fastened-to a link 21 by a clan'iping bolt preferably supplementedby suitable tongue-and-groove formations on the

members

19 and 21 respectively to prevent then1en'iber1l9 from turning .aboutvthe bolt. The clamping bolt extends through a slot in the bracket, which slot aiiords a considerable range of horizontal adjustment oi'the topli-tt guard .relativelyto the link 21. For the purpose of effecting horizontal. adjustments or the bracketv the latter is provided. with a rack. 31 and the link 21 is provided Jith ,a nianually operable pinion 252 engaging said rack; u'lhe link 2i,is'supportedby links 23 and 24.110 which itis connected by

pivot studs

25 and 26 respectively. The link 23 is connectedby an anchoring pivot 27 a fixtureQS, said jtixtuirehaving a segmentalslot 29through vaduistable sections by which its effective radius may be increased and decreased to n'iodii the shape, of the path tra'versedby the topli'l t guard in addition to th'emodifications afforded by the aforesaid adjusta bility oithe anchoring pivot 27. As shown by Fig. the pivot member 26 is carried by a dovetailed. member 33 arranged in a corresponding dovetailed portion of the member .24. E lie anchoring pivot Set, of the member Fi lds fixed to the fixture 28, and the mem flier-33 is adjustableiin such away as to shift .the p-ivot26 toward and from the axis of vthe anchoring pivot dies of the linlrQd: is therefore capable of being varied by adjusting the pivot. mem- The effective raber-26 toward and. from the anchoring pivot beridis proscrc and the an a jus is .prot' edvwith a groove member 38 llo maintain .the'niember -33 in rarirousipositions ad ustnient the l11fnlbQ1-24:: .S sphtto iorin two cooperative clamping portions and as prov dedwith a bolt-38 to draw said poritions toward each otherlin sucha wa -xas to S CI 6,WS 39 and ve0, the screw 39 tservirig as to receive aiflange or collar .3"? ongthe screw.

7 an abutment for a portion 41 of the member 24, and the screw 40 serving as an abutment for an ear 42 formed on the connecting link 21. A torsion spring 43 encircling the anchoring pivot 34 normally urges the toplift guard toward the left and thereby maintains the portion 41 initially against the stop screw 39. ldechanism hereinafter described is provided for actuating the member 24 to shift the toplift guard to the right and alsoto control its return movement to its initial position. Saidmechanism includes a gear segment 44 formed on the member24 and arranged in meshed relation to a gear segment 45 formed on an arm 46. The description of the mechanism for actuating the arm 46 is postponed relatively to a description of the counter guard because, according to the illustrated organization, both guards receive motion from one source.

The counter guard 47 herein illustrated is cup-shaped and adapted to surround and enclose more or less of the shaving cutters 10. It is supported by a carrier 48 and is rotatable relatively to the carrier so that it may have rolling contact with the counter portion of a shoe or with any alternative templet with which the heel may be provided to govern the shaving at the base end. For example, so far as certain aspects of the invention are concerned it wouldbe within the scope of the invention to trim an unattached heel with the illustrated mechanism. The rotatability of the counter guard not only minimizes the wearing effect of the base templet but distributes such wearing effect around the periphery of the guard so that one portion will not be worn more than others. The carrier 48 is supported by a pair of links 49 and 50 to which it is connected by pivot members 51 and 52. The link 49 is con nected to a stationary but adjustable bracket 53 by an anchoring pivot 54, while the link 50 is connected to said bracket by an anchoring pivot 55. The pivot 54 extends through a segmental slot 56 in the bracket which affords a range of adjustment for the purpose of shaping the path of movement of the counter guard to conform to the profile of the cutters. The counter guard may be adjusted transversely of its axis by advancing or retracting the bracket 53, and since the wall of the counter guard is very thin its periphery may be adjusted very closely to the periphery of the cutters without interference. Although Fig. 1 shows a counter guard in substantially concentric relation to the cutter-head actual working conditions would require a closer relation between the work'engaging portion of the guard and the cutters. The desired relation would be established by turning the adjusting screw 57 which has screw engagement with a clamping portion 58 of the bracket. This clamping portion has tongue-and-groove engagescrew 64 is arranged to adjust the carriage relatively to said fixture" along lines at right angles to the lines of adjustment effected by the screw 57. These adjusting devices are sufiicient to establish any desired normal or initial position of the counter guard according to the style of cutter and according to the style of heel to be shaped.

An arm 65 is rigidly connected to the link 50 so that these two elements constitute a two-arm lever, the connection being formed by the anchoring pivot 55 to which the link 50 is pinned or otherwise permanently fixed and to which the arm 65 is clamped by a'bolt 66. Motion istransmitted to the arm'65 by a link 67, lever 68 and link 69 from an operat ing lever 70. The link 67 is provided with a slot 71 and the connection between this link and the arm 65 is formed by a bolt 74 and collar 73 which, undercertain condi tions, may be tightened to clamp the link against a swiveled piece 72 (Fig. 6), and under other conditions may be loosened to permit lost motion of the link. When lost motion is desired its amplitude may be reg ulated by a stopscrew 94 carried by the link. This screw is arranged to abut against the piece 7 2 for the purpose of transmitting motion of the link to the arm 65. The other end of the link 67 is adjustably connected 'to' the arm 68 by cooperative clamping members which provide pivotal connection, one of said clamping members being a bolt 75 and the other being a pivot stud having a circular head or flange arranged in an undercut groove 95 in the lever 68. The fulcrum stud of the lever 68 is indicated at 76. By loosen; ing the bolt 66 the arm 65 may be turned around about 180 degrees relatively to the link 50 to provide for reversing the direction of movement of the counter guard relatively to that of the toplift guard.

The counter guard is urged toward the toplift guard at all times by a spring 96, and its limit of motion in that direction is determined by an adjustable screw 97 and a stop 98. The stop is formed on the stationary bracket 53, and the screw is carried by the link 50.

Owing to the fact that the operating lever is arranged to swing about an axis that is not parallel to that of the fulcrum stud 76 universal joints 77 are provided to connect the link 69 with the levers 68 and '70. 7

These connections are represented as of the ball-and-socket type.

The invention is-not limited as to any particular'means for actuatingthe lever 70, but the illustrated embodiment of the invention includes a-treadle 78 for this purpose (see Figg ti). The lower end of an operating rod 79 is pivotally connected to the treadle, and

the upper end is pivotally connected to the lever by a pin 80. A strong spring 81 normally raises the treadle'and the rod 79 to maintain the parts in the positions shown by Figsal, sand 6. 4 straddle the cutter shaft 11 and is, mounted on two

coaxial'fulcrum members

82 and 83.

Referring to Fig. 1, when the treadle is moved downwardly the link .69 moves from right to left, thereby transmitting motion to the lever ,68 from which it is transmitted to the counter guard to move thevlatter from right to leftwith ing'to the lost-motion. connection at 71 and according, to the position at which the piv otal connection v is adjusted. For example, if this pivot connection is at ,a relatively great distance from; the axis of the fulcrum 7,6, the link 67 will receive relatively amplitude of movement, and if the screw 94- is setto provide lost motion the movement of the counter guard will not begin until after the toplift guard has been shifted. Furthermore, ifthe position of the arm 65 is reversed the counter guard will move in the same direction as the toplift guard. The lever 68 may have a constant range of movement of any desired amplitude while the amplitude of motion transmitted to the counter guard from said lever may be regu latedas desired by shifting the point of pivotal connection between said lever and the link 57:.

Thelever 68 may serve also to transmit motion to;the toplift guard so that the motions of the two I guards may be synchronized. For thisfpurpose the illustrated mechanism is so organized-that the segment arm ltlwill swing about the same axis as the lever 68. In fact, the ,fulcrum member 76 extends through the arm l6 so as to serve as the fulcrum member for this arm as wellas for the lever 68. The connection ispreferablysuch as; to enable the'lever 68, under certain con ditions, to swing without imparting any movement to the arm 46. A yieldable connection isformed between the lever 68 and the arm e6 by a spring 8%, one end of said spring being seated in a socket formed in an adjustable screw 85-carried by the lever 68 while the other end of said spring is seated in a socket formed in the arm l6. The arm l6 andthe lever 68are provided with bosses 86 and 87 arranged to abut one against the other and normally held in abutting relation spring, and the latter serves as a g transmission medium to move the guard from left to right. The yield.- ing connectionafiorded by thespring 84- per- The lever '70 is formed to.

variable amplitude accord great units shifting thecounter guard irrespective of the extent to which the toplift guard is permitted to move by its arresting scrcwO. In fact, if the screws 89 and t0 are set so as to hold the toplift guard positively in one position, the fixed condition of the toplift guard will not interfere with the shifting of the counter guard l urther, if the work is such that it would be desirable to shift both guards simultaneously at first and to continue the shifting of the counter guard after arresting the toplift guard, the arresting screw l0 would be adjusted to determine the desired limit of movement of the toplift guard and would determine the point at which the arm 46 would cease to move in unison with the lever 08. Beyond this point the spring ea would yield to permit a continuation of the shifting movement of the counter guard. Then, as the mechanism re: turns to its normal position, the toplift guard would remain stationary against its arresting screw 40 until the boss 87 strikes the boss 8%, and thereafter the two guards would move simultaneously to their initial positions. These results areillustrated dia grammatically by Fig. 2 in which the normal positions of the various movable elements are indicated by broken lines A, the position at which the toplift guard is arrested are indicated by continuous lines B,and the ultimate positions corresponding to the extreme position of the counter guard, are indicated by broken lines C. 7 Furthermore, the corresponding positions of the centers of certain pivots and their ranges of motion are indicated by corresponding lines and letters of reference. For example, the operating link 69 shown in three successive positions, A representing its normal position, B representing its position at which the toplift guard is arrested, and C representing the extent to whichitmay be moved after the toplift guard has been arrested. It follows, therefore, that the toplift guard will move from position A to position B while the lever 68 is moving from position A to position B, the counter guard alsoi'noving simultaneously from position A to position B. During this stage of shifting, the

pivots

25 and 26 will swin from positions A to positions B andthus snape the path of movemcntof the toplift guard desired. lVhile the lever 68 moves from B to C it will shift the counter guard from B to C bu the toplift guard will be detained at B by the stop so.

Under the conditions of regulation explained in the lastparagraph the two guards may be shifted simultaneously while trimming along the sides of a heel between lines A and B as applied to Fig. 7, line A), before, representing the po'nt at which the toplift guard would be arrested. The shifting of the toplift guard not only compensates to some extent'for the wedge factor of the-heel, but

also varies the distance between the highest point of the cutter and the toplift so that the highest point of the cutter will be led along the heel substantially as indicated by broken line 100. This avoids cutting too deeply into the waist of the heel. In shaving the back of the heel from line B on one side to line B on the opposite side the toplift guard may remain stationary while the counter guard continues to move out and then back to compensate further for the wedge factor.

Another variation can be had by using the lost motion connection at 71 (Figs. 1 and so as to postpone the movement of the counter guard until the toplift guard has been arrested (on the out-stroke) and to arrest the return motion of the counter guard at the point where the return motion of the topliftguard begins. For example, while the lever 68 moves from A to B it would move the toplift guard only; in moving from -B to (land back to B the counter guard would move out and back to its arresting member 98; then the lever and topliftguard would return from B to A.

F or such styles of Wedge heels as would not require arresting the toplift guard during the shifting of the counter guard, the shifting of the guards would progress as represented diagrammatically by Fig. 3. Here three outlines of a heel are represented and are numbered 1, 2 and 3 respectively. Outline 1 represents the outline of the front part of the heel, outline 2 represents the outline at the widest part, and outline 3 represents a side elevation, each of the final form. The correspondingly numbered lines intersecting the profile of the cutter indicate corresponding positions of the toplift guard and counter guard as the guards are moved along the length of said profile, and the arrow-

head lines

1, 2 and 3 within the outline of the cutter indicate the ranges of the cutter that function at the corresponding stages of shaping.

In connection with Fig. 3 it may be observed that the toplift 88 partakes of the trmming action of the cutter so that the desired profile is imparted to the heel throughout its entire height at all stages of shaping. The capacity of the mechanism thus to produce the desired profile in the toplift while imparting such profile to the body and wedge portions is made possible by that feature of construction hereinbefore described which enables the cutter to operate on the toplift between the two alcutments 141. These abutments may be so adjusted that the cutter will intersect the edge formed by the tread surface and periphery of the topl ft, in which case the cutter will trim the entire thickness of the toplift -without changing the contour of the tread surface. s It hasbeen stated that the path of moveand the resultwill be a ment of the toplift guard may be shaped as" conform to the periphery of thecutterby i; regulating the

links

23 and 24, andwhile" this is true there may be occasions when even better results could be obtained by regulating said links so as to produce a slight variation between the path of the toplift. guard and the profile of; the cutter. 1

For example, since thetwo-point bearing ofthe cutter when the portionsof relatively slight curvature are bear'ing thereon and to retract the work slightly when the portions of relatively pronounced curvatureare bear ing thereon, and if the degree of such regulation be substantially commensurate with the variations of curvature in the periph ery'of the toplift, the path of movement of the toplift guard' will be almost, but not quite, parallel to the contour of the cutter practically perfect job of trimming. This compensatory' fac tor may be utilized in every case regardless of whether the heel has or has not a wedge formation. If it has no wedge formation or too little to take up the increase of space between the guards When the toplift guard is moved to produce such compensatory factor the desired relation between the two guards may be maintained by swinging the arm 65 to the opposite side ofthe axis of Then the guards will be the fulcrum 55. caused to move in the same direction at the sametime, the follow-up movement ofthe counter guard serving to maintain the desired distance between the guards while the toplift guard is moving to produce the aforesaid compensatory efiect. v i

In all machines for shaping heels as to which the work is held and manipulated by the operative it is necessary to provide a heel rest to maintain the work in the desired relation to the cutter and to sustain the cutting stress. Such a heel rest is arranged to bear against the periphery of the heel so that the latter may rock on it. It has been customary heretofore to fix such a heel rest in one position, but for the purpose of trim,

ming heels according to the present invention it is desirable to have 1t moved laterally with the toplift guard. Accordingly the.-

drawings include a heel rest 89 that is arranged to move in unison with the toplift guard so as to remain in a constant relation thereto. According to the illustrated construction of this i'eature the heel'rest is formed with a cylindric shank (Fig. 5) and said shanlt is adjustably held by a split clamping portion 91 of a holder having a cylindric shank portion 9:2 extending at right angles to the shank 90. The shank is adjust-ably held by a split clamping portion 93 of the bracket 1. that carries the top-lift guard. T he holder 91, 92 is adjustable lengthwise of its shank portion and rotatively, while the heel rest is also adjustahle lengthwise of its shank portion and also rotatably. Gollectively these provisions for adjustment permit setting the heel rest at any position best suited to the size and style of heel to be shaped.

Having thus described my invention, what i claim as new and desire to secure by Let ters Patent of the United States is:

l. A. heel-trimming machine comprising a rotary cutter profiled to impart substantially the final shape to a heel, a counter guard and a top-lift guard arranged for relative move -ut toward and from each other, and mechan sin constructed and arranged to effect said relative movement of the guards toward or from each other during the operation of trimming a heel.

2. A heel-shaping machine comprising a mechanically operated cutter having a profile adapted to shave the periphery of the heel to substantially final shape, means ar ranged to control the pitch and course of such shaving by engaging the counter and toplit't or the shoe to which the hee is attached, and mechanism arranged to shift said controlling means so as to cover and uncover portions of said cutter during the operation of shaving the heel.

3. A heel-shaping machine comprising a mechanically operated cutter arranged to shave the periphery of a heel, means arranged to control the pitch and course of such shaving by engaging the topliit and counter of the shoe to which the heel is attached, and mechanism arranged to shift said controlling means so as to cover and uncover portions of the cutter during the shaving operation, the cutter being formed and arranged to impart substantially final shape to the body and wedge portions of a wedge heel.

4. A heel-shaping machine comprising a mechanically operated cutter arranged to shave the periphery of a heel, means arranged to control the pitch and course of such shaving by engaging the periphery of the top lift at separate points and the counter oi the shoe to which the heel is attached, and mechanism arranged to shift said controlling means so as to cover and uncover portions of he cutter during the shaving operation,

operate on the toplii t between said separate points and to impart supbstantially final.

shape to the toplift and the body of the heel simultaneously.

5. A heel-shaping machine comprising a mechanically operated cutter arranged to shave the periphery of a heel, means arranged to control the pitch and course of such shaving by engaging the toplir t and counter ot a shoe to which the heel is at.- tached, and mechanism arranged to shift said controlling means so as to cover and uncover portions of the cutter during the shaving operation and to regulate the range of the uncovered portion according to variations in the heightof a wedge heel, said controlling means being arranged to afford access of the entire thickness 01 the toplift to the cutter, and the cutter being formed and arranged to impart substantially final shape to the body and wedge portions while trimming the toplii t.

A heel-shaping machine comprising a mocha. cally operated cutter arranged to shave the periphery of a heel, a counter mechanism arranged to move said movable one of the guards toward and from the other during the operation of shaving a heel.

7. A heel-shaping machine comprising a mechanically operated cutter arranged to shave the periphery of a heel, a counter uard, at topliit guard movable toward and Tom the counter guard, mechanism arranged to move the toplitt guard in one of said directions during the operation of shaving. a heel, and a spring arranged to move said toplift in the other one of said directions. o

8. A heel-shaping machine comprising a mechanically operated cutter arranged to shave the periphery of a heel, a toplift guard, a counter guardmovahle toward and from the top'lift guard, and mechanism arranged to move the counter guard toward and from the topliftguard during the operation of shaving a heel.

9. A heel-shaping machine comprising a mechanically operated cutter arranged to shave the periphery of a heel, a counter guard and a toplift guard each movable toward and from the other, and mechanism arranged to move said guards toward and from each. other during the operation of shaping a heel.

10. A beer-shaping machine comprising a mechanically operated cutter arranged to shave theperiphery of a heel, a movable counter guard, a movable toplift guard, and mechanism arranged to move said guards with unequal amplitudes of movement.

11. A heel-shaping machine comprising a mechanically operated cutter arranged. to shave the periphery of a heel a movable counter guard, a movable toplitt guard, and

a mechanism arranged to move said guards in difierent directions.

12. A heel-shaping machine comprising a mechanically operated cutter arranged to shave the periphery of a heel, a movable counter guard, a movable topli'lt't guard, and mechanism connecting said guards so that movement imparted to one will be communicated to the other.

13. A heel-shaping machine comprising a mechanically operated cutter arranged to shave the periphery of a heel, a counter guard and a toplift guard each movable toward and from the other, and mechanism arranged to move said guards simultaneously in opposite directions.

14. A heel-shaping machine comprising a mechanically operated cutter arranged to shave the periphery of a heel, a movable counter guard, a movable toplittguard, and regulatable mechanism arranged to move said guards along variable lines.

15. A heel-shaping machine comprising a mechanically operated cutter arranged to shave the periphery of a heel, a movable counter guard, a movable toplitt guard, means arranged to arrest movement of one of said guards, and mechanism arranged to move the latter said one of said guards against its said arresting means and to move the other one of said guards while the arrested guard remains against said arresting means.

16. A heel-shaping machine comprising a mechanically operated cutter arranged to shave the periphery of a heel, a movable counter guard, a movable toplitt guard, means arranged to arrest movement of one of said guards, and mechanism arranged to move said guards simultaneously and to continue the movement of the other one after the one having said arresting means is arrested thereby.

1'7 A heel-shaping machine comprising a mechanically operated cutter arranged to shave the periphery of a heel, a movable counter guard, a movable toplift guard, mechanism arranged to move one or both of said guards according to Whether the other guard is restrained from moving, and means arranged to keep said other guard in one position during a part only of-the movement of the said one of said guards.

18. A heel-shaping machine comprising a i'i'iechanically operated cutter arranged to shave the periphery of a heel, a movable counter guard, a movable toplift guard, and mechanism arranged to move said guards simultaneously but including a yieldable connection With one of them so that it may actuate the other when said one is arrested.

19. A heel-shaping machine comprising a, mechanically operated cutter arranged to shave'the periphery of a heel, a movable counter guard, a movable toplift' guard, and 7 mechanism arranged to move said guards and including means for relatively varying the proportions of movement impartable by it to the guards 20. A heel-shaping machine comprising mechanically operated cutter arranged to shave the periphery of a heel, a. movable counter guard, a movable toplift guard, ac tuating means arranged to move one of said guards while a shaving operationis in progress, and regulatable mechanism arranged to transmit motion from said actuating means to the other one of said guards, said mechanism being regulatable to vary the amplitude of motion imparted to said other one relatively to that of said actuating means 21. A heel-shaping machine comprising a mechanically operated cutter arranged to shave the periphery of a heel, a counter guard, a movable toplift guard, and regulatable mechanism arranged to move said toplift guard along predetermined, variable lines toward and fromthecounter guard.

22. A heel-shaping machine comprising a mechanically operated cutter arranged to shave the periphery. of a heel, a toplift guard, a counter guard, and regulatable mechanism arranged to move the counter guard along predetermined variable lines toward and from the toplift guard.

A heel-shaping machine comprising a mechanically operated cutter arranged to shave the periphery of a heel, a counter guard, a movable toplift guard, and mechanism arranged to move said toplift guard along a curvilinear course toward and from the counter guard.

24:. Aheel-shaping machine comprising a mechanically operated cutter arranged to shave the periphery of a. heel, a toplift guard, a movable counter guard, and mechanism arranged to move said counter guard along a curvilinear course toward and from the toplift guard.

25. A heel-shaping machine comprising a mechanically operated cutter arranged to' shave the periphery of a heel, a movable counter guard, a movable toplift guard, and mechanism arranged to move said guards along curvilinear courses toward and from each other.

26. A heel-shaping machinecomprising a mechanically operated cutter arranged to shave the periphery of a heel, a movable counter guard, a movable toplift guard, and mechanism arranged to move said guards simultaneously along curvilinear courses.

27. A heel-shaping machine comprising a mechanically operated cutter arrangedto shave the periphery of a heel, a movable counter guard, a movable toplift guard, and regulatable mechanism arranged to move said guards and being regulatable to vary iii the amplitude or movement imparted to one Without varying that imparted to the other.

28.- A heel-shaping machine comprising a mechanically operated cutter arranged to 'shave the periphery of a heel, a movable counter guard, a' movable to'plii t guard, and reg-ulatable mechanism arranged to move said guards but being regulatabl'e to maintain one of the guards in one position while operating to move the other.

29. A. heel-shaping machine comprising a mechanically operated cutter arranged to shave the periphery of a heel, a movable counter guard, a movable toplift guard, and regulataljle mechanism arranged to move said guards and being regulata'ble to reverse the direction of movement or one of them.

30. A heel-shaping machine com-prising a mechanically operated cutter arranged to shave the periphery of a heel, a movable counter guard, a movable toplitt guard, and regulatable mechanism arranged to move said guards and being regulatable to vary the; lines of movement of one of them.

31. A heel-shaping machine comprising a mechanically operated cutter arranged to shave the periphery of a heel, a movable counter guard, a movable toplift guard, and regulatable mechanism arrangedto nove said-guards and being regulatable to vary the lin'esof movement of each of them independently of the other.

32. A heelshaping machine comprising a mechanically operated cutter arranged to shave the periphery of a heel, a counter guard,- a toplift guard movable toward and from saidcounter guard to cover and un cover portions of said cutter, andmechanism arranged to control the movements of said toplift guard toward and from the counter s at h 33,111 a heel-shaping machine, the combination with a mechanically operated shaving cutter, of amovable counter guard, reg ulatable means adapted to shape the path of movement of said guard according to the profile otthe corresponding range or said cutter, a movable toplitt guard, and regulatable means adapted to shape the path of movement of the toplift guard according to the profile of its corresponding range of said cutter.

34.;In a heel-shaping machine, the combination With a mechanically operated shaving cutter, of a movable toplitt guard, and regula'table means adapted to shape the path ofn ovement of said guard according to the profile of the corresponding range of said cutter 35. In a heel-shaping machine, the combination with a mechanically operated shaving cutter, of a movable counter guard, a movable toplift guard, regulat-able means adapted to shape the path of movement of said toplift guard according to the profile of the corresponding range or said cutter, and mechanism arranged to move said guards so as to vary the effective range of the cutter while the latter is shaving a heel.

36. In a heel-shaping machine, the combination with a mechanically operated shaving cutter, ot a movable counter guard, regulatable means adapted to shape the path or movement or said guard, a movable toplitt guard, regulatable means adapted to shape the path of movement of said toplift guard, and regulata-ble mechanism arranged to move said guards through ranges or variable but predetermined amplitude.

37. in a heel-shaping machine, the combination With a mechanically operated shaving cutter, of a counter guard and a toplitt guard each movable to cover and uncover parts ofthe cutter, regulatable mechanism arranged to move one of said guards to and fro through a range of variable but predetermined amplitude, and yieldable means operable by said mechanism to move the other one of said guards.

38. A heel-shaping machine comprising a mechanically operated cutter arranged to shave the periphery of a heel, a counter guard, and a toplitt guard including a tread rest and two separate abutments in contiguous relation thereto, said ab'utments being arranged to cover Working portions of the cutter and to bear simultaneously on the periphery of the toplit't to determine a course of trimming according to the contour of the toplirt and to enable said periphery to extend into the field of trimming'betiveen them. 7 p

39. A heel sha-ping machine comprising a mechanically operated cutter arranged to shave the periphery of a heel, a counter guard, and-a topli'l t guard including a tread rest and two separate abutments arranged to bear simultaneously on the periphery of the toplitt to determine a course of trimming according to the contour of the toplitt and to enable said periphery to efitend into the field of, shavi-ng hetiveen them, said abutments being adjustable toward andfrom each other in parallel lines to regulate the depth of shaving I 40. A heel-shaping machine comprising a mechanically operated cutter arranged to shave the periphery of a heel, a counter guard, an adjustable tread rest, and two separate abutments carried by said tread rest, the Work-engaging faces of said abutments and tread rest forming angles to receive the edge of the topli-t't, and said abut-ments being arranged to bear simultaneously on the periphery of the toplift so as to determine a course of shaving and to provide a gap through which said periphery may extend to partake of the shaving action or" said cutter.

41'. A heel-shaping machine comprising a mechanically operated cutter arranged to shave the periphery of a heel, a counter guard, an adjustable tread rest, two separate abutments carried by said tread rest to bear simultaneously on the periphery of the topliift so as to determine a course of shaving and to provide a gap through which said peripherymay extend to partake of the shaving action of said cutter and adjusting means connecting said abutments to adjust them toward and from each other so that the width of said gap and the depth of shaving may be regulated.

42. A heel-shaping machine comprising a mechanically operated cutter arranged to shave the periphery of a heel, a counter guard, an adjustable tread rest, two separate abutments carried by said tread rest to bear simultaneously on the periphery of the toplift so as to determine a'course 0t shaving and to provide a gap through which said periphery may extend to partake of the shaving action of said cutter, and means carried by said tread rest for simultaneously adjusting said abutments toward or from each other to regulate the depth of shaving.

43. A heel-shaping machine comprising a mechanically operated cutter arranged to shave the periphery of a heel, a counter guard, a toplift guard movable toward and from said counter guard to cover and uncover portions of said cutter, said toplitt guard having two separate abutments arranged to bear simultaneously on the periphery of the toplift todetermine a course of shaving and to provide a gap through which said periphery may extend to partake of the shaving act-ion of said cutter, and means for moving said toplitt guard while a shaping operation is in progress.

44. In a heel-shaping machine, the combination with a mechanically operated shaving cutter, of a toplit't guard having two separate abutments arranged to bear simultaneously on the periphery of the toplift to determine the depth oi shaving, said guard being movable in lines substantially parallel to the profile of said cutter while a shaping operation is in progress to cover and uncover portions of the cutter, and said abutments being arranged to form a gap through which said periphery may extend to partake of the shaving action of the cutter.

45. In a heel-shaping machine, the combination with a mechanically operated shaving cutter, of a movable toplift guard having two separate abutments arranged to bear simultaneously on the periphery of the toplift to determine a course of shaving and to form a gap through which said periphery may extend to partake of the shaving action of said cutter, and regulatable means adapted to shape the path of movement of said guard according to the profile of the corre-'- sponding range 0]": said cutter.

46. In a heel-shaping machine, the coming cutter, of a movable toplit't guard, and two cooperative links pivotally connected to said guard to determine its path of movement and having relatively adjustable anchoring pivots, one of said links comprising relatively adjustable sections by which the length of its effective radius may be changed to modify the path of movement of said guard. I t

47. A heel-shaping machine comprising a mechanically operated shaving cutter, a counter guard, a movable topliit't guard, a controller movable by the operative at will, and means operable by said controller for moving said toplift guard lengthwise of the profile of said cutter while said cutter is shaving a heel.

48. A heel-shaping machine comprising a mechanically operated shaving cutter, a top lift guard, a movable counter guard, a controller movable by the operative at will, and means operable by said controller for moving said counter guard while said cutter is shaving a heel.

49. A heel-shaping machine comprising a mechanically operated shaving cutter, a movable counter guard, amovable toplit't guard, a controller movable by the operative at will, and means operable by said controller for moving said guards while said cutter is shaving a heel.

50. A heel-shaping machine comprising a mechanically operated cutter for shaving the periphery of the heel to substantially final shape, a counter guard and a toplitt guard one of which is movable toward and from the other to cover and uncover parts of said cutter, manually operable means arrangedto move said'movable guard in one direction, and a spring arranged to move it in the opposite direction.

51. A heel-shaping machine comprising a mechanically operated cutter for shaving the periphery of the heel to substantially final shape, a counter guard and a toplift guard one of which is movable toward and from the other to cover and uncover parts of said cutter, a spring arranged to move saidmovable guard in one direction, and other means arranged to move it in the opposite direc tion. j

52. A heel-shaving machine comprising a mechanically operated cutter for shaving the periphery of a heel to substantially final shape, a movable counter guard, a movable toplift guard, spring-stressed mechanism arranged to move said guards normally to predetermined positions, and means arranged to bination with a mechanically operated shavactuate said mechanism so as to move the guards away from said positions while said cutter 1S shaving a heel.

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53. A heel-shaping machine comprising a mechanically operated cutter arranged to shave the periphery of an attached heel, and means relatively to which the heel is movable constructed and arranged to engage the counter of the shoe and the toplift so as to control the depth of shaving and to permit said cutter to shave the entire thickness of the toplift while shaving the body of the heel.

5 1-. A heel-shaping machine comprising a mechanically operated cutter arranged to shave the periphery of a heel, a movable counter guard, a movable toplift guard, and

mechanism arranged to move said guards and including a lost-motion connection by which the movement of one of them may be postponed to begin after the other one has been moved thereby.

55. A heel-shaping machine comprising a mechanically operated cutter arranged to shave the periphery of a heel, a movable counter guard, a movable toplift guard, and manually operable means arranged to move said guards simultaneously.

56. A heel-shaping machine comprising a mechanically operated cutter arranged to shave the periphery of a heel, a movable counter guard, a movable toplift guard, a treadle, and connections from said treadle to said guards to shift the latter to and fro.

57. A heel-shaping machine comprising a mechanically operated cutter adapted to shave the periphery of a wedge heel to substantially final shape, a movable counter guard and a movable toplift guard arranged to control the pitch and course of shaving, and mechanism arranged to move said guards and adapted to coordinate their movements according to the following cycle, via, a movement of the toplift guard away from the counter guard, a movement of the counter guard away from the toplift guard, a movement of the counter guard toward the toplift guard, and a movement of the toplift guard toward the counter guard.

58. That improvement in methods of shaping a wedge heel which consists in generating a predetermined profile progressively around the periphery of the heel by shaving the entire thickness of the body and wedge portions simultaneously to such profile, and controlling the pitch of the generated profile and the depth of such shaving according to predetermined standards so that a single course of shaving will impart the final shape to the periphery.

59. That improvement in methods of shaping a wedge heel which consists in generating a predetermined profile progressively around the periphery of the heel by shaving the entire thickness of the body and portions simultaneously to such profile, controlling the pitch of the profile and limiting the depth of shaving to final predetermined standards in the first instance, and leading the generated profile otherwise than parallel to the plane of the top of the heel. with a. component of relative shitting movement in a direction lengthwise of the profile as the shaping progresses.

60. That improvement in methods of shaping an attached heel having a toplift of sub stantially final contour which consists in shaving the body of the heel and the toplift to a predetermined profile and at the same time controlling the pitch and course of shaving partly by a point of bearing on the counter and partly by two points of bearing in tandem relation on the periphery of the toplift.

61. That improvement in methods of shap ing an attached heel having a toplift of substantially final contour, which consists in shaving the body of the heel and the toplift simultaneously to a predetermined profile and at the same time controlling the pitch and course of shaving partly by the periphcry of the toplift and partly by the counter of the shoe.

62. That improvement in methods of shaping an attached heel having a toplift of substantially final contour, which consists in shaving the body of the heel and the entire thickness of the toplift simultaneously to a predetermined profile and at the same time controlling the course of such shaving by physical cont-act with the counter of the shoe and the periphery of the toplift.

63. That improvement in methods of shaping a heel having a toplift of substantially final contour, which consists in shaving the body of the heel to a predetermined profile and at the same time controlling the course of such shaving by a point on the counter and two separate points in tandem relation on the periphery of the toplift, and simultaneously shaving said periphery between said points.

64. That improvement in methods of shaping a wedge heel having a toplift of substantially final contour, which consists in shaving the body and wedge portions of the heel simultaneously to a predetermined profile and at the same time controlling the course and pitch of such shaving partly by the periphery of the toplift.

65. That improvement in methods of shaping a wedge heel having a. toplift of substantially final contour, which consists in shaving the body and wedge portions of the heel simultaneously to a predetermined profile and at the same time controlling the course and pitch of such shaving partly by two separate points in tandem relation on the periphery of the toplift, and simultaneously shaving said periphery between said points.

66. That improvement in methods of shaping a wedge heel having a toplift of substantially final contour, which consists in shavlit) ing the toplift, heel body and Wedge por tion simultaneously to a predetermined profile, and at the same time controlling the pitch and course of such shaving partly by i the periphery of the toplift.

I 67. That improvement in methods of shaping a Wedge heel having templets fixed adjacent to its top and bottom surfaces, which consists in shaving the body and wedge por- FRANK ANTON men.