US1477574A - Heel-breasting machine - Google Patents

Description

Patented ec. E8, 1923.

Lillie hair; sr rnr rt- THOMAS LUND, OF BEVERLY, MASSACHUSETTS, ASSIGNOR TO UNITED SHOE IJIA- OHINEBY CORPORATION, OF IPAlERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

HEEL-BREASTING MACHINE.

Application filed November 15, 1919. Serial No. 338,291.

To all whom it may com-em:

Be it known that I, THOMAS LUND, a citizen of the United States, residing at Beverly, in the county of Essex and State of Massachusetts, have invented certain Improvements in Heel-Breasting Machines, of which the following description, in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several figures.

This invention relates to machines for making spring heel lifts and more particularly for beveling or wedge shaping the brfiast or straight edge portions of such 1i s.

In spring heel shoes, the break of the heel inclines gradually from the tread surface of the heel and merges into the surface of the shank or bottom of the shoe in front of the heel. The spring heel lifts which are secured to the heel portion of the shoe and define the gradation or incline at the break of the heel, however, are died out of the stock or sheet material by a cut ext-ending directly from one surface to the other, and the lifts present substantially uniform thickness about the contour and breast or straight edge portions thereof. To secure the gradual incline along the break of the heel, the breast or straight edge portion of the spring heel lifts is trimmed or given a bevel more or less emphasized in accordance with the degree of inclination desired, and since such spring heel lifts are usually secured between the heel seat of the shoe and heel portion of the outersole, the bevel or wedge shape extends from a line well back of the breast edge at one surface to a line at or close to the edge of the breast at the opposite surface, to avoid the existence of any opening or recess at the beveled edge of the lift due to the configuration of the outersole at the break of the heel. In some cases one or more spring lifts may be emloyed and in other instances one or more of such lifts may be secured to the heel portion outside the outersole, but in any event the bevel or wedge incline should be in conformity with the spring character desired for the heel. The degree of bevel or incline to be given the breast edge of the spring heel lift will depend upon several factors, amongst which may be instanced the height or thickness of the lift, the particular spring or incline at the break of. the heel, size and style of shoe; andone object of the present invention is to provide a simple and efficient machine whereby any desired bevel or incline may be given the breast or straight edge portion of spring heel lifts.

An important feature. of the invention, therefore, consists in a novel construction of rest on which a spring heel lift may be clamped and that is adjustable to different inclinations relative to the path of a beveling knife.

This feature of the invention may be variously contrived, but in the present. instance is carried into effect by a plate which is adjustably secured to the machine frame and has projecting therefrom the spring heel rest, the adjustment ofthe plate and, perforce, the spring heel rest, being about an axis passing transversely of the spring heel rest approximately at the line of contact between a spring lift and the surface of the rest.

' Another important feature of the invention consists in a positioning lip on the rest against which the breast edge of the heel or heel lift abuts when in breasting position and a clamp constructed and arranged to apply pressure longitudinally to the heel to hold it against the lip at the same time that it applies downward clamping pres.- su're to the heel. Preferably the lip has a substantially sharp upper edge which extends slightly above the plane of the surface on which the heel or lift rests, said edge bcing in axial alinement with the'axis about which the plate is adjustable and concaved to conform to the knife face which is next to the heel or lift, so that the knife cooperates with the said edge in the various adjustments of the plate to effect a shearing cut at the completion of its stroke. The rib or lip acts in addition to its cooperation with the knife to protect the lower edge of the breast face of the heel by which it ispositioned so that no material is removed therefrom. This results in a saving of stock since a heel of any size will have enough stock removed to form the desired bevel of its breast face and no more.

Another important feature of the inventrated to make clearthe construction, mode of operationofthe invention, and the'associ'ation thereof "with the co-acting parts. This '-'mae'hine may be -either -1nanually or power operated.

In the drawings:

Fig. 1 is aperspe'ctive view-of a machine embodying the present invention;

Fig.2 is a side view in detail with parts broken away showing-more particluarly the positioning lipl-and its relation tothe other parts.

The-'machinefframe 1 of suitable construction rises from a base or'support, and is provided with a guide-way 2, of whichthere may 'betwo or more, for guidingthe reciproeating movements of'a knife carrying head 3. 'The'headS may be reciprocated by any suitable means and to it is secured the'knife 4. Inthe'present instance of the invention the ,ihead 3 has a bridge-piece 5, to which the knife 4 i's secured by means of clamping bolts 6 which pass through the bridge 5 and c'lampzthe knife 4 against abacking 7 carried by the head. '()vei'hanging the upper endofthe knife 4 is an abutment/'8 through which extend "the stop screws 9 "adapted to bear uponthe upper edge of the knife, the construction being such that by proper manipulation ofthe clamping screws '6 and adjusting screws 9,"the.knife 4 be ad-' justed and secured "in desired position relativefto the reciprocating head 3.

Adjustably' connected to the machine frame is the carrier or plate "for the spring lift rest, which is adjustably secured to the frame to -provide "for varying inclinations of springheel lifts on the rest relative to the predetermined path of the knife. In thepresent instance the carrier or plate '10 is ofgeneral dis'k form and is provided about its marginal'p'ortions withlslots 11 formed in the arc of a circle, the centre of which is the axis about which the carrier'or plate 10 is adjustable. Passing through the curved slots 11 are the bolts 12 having suitable nuts and washers 13 for clamping the plate in position to which it has been adjusted.

' Extending laterally from the face of the plate 10 is the spring heel restl l. The rest 14 may be connected to the plate in appro- I priate manner to withstand the cutting action 0f the knife, but in the present instance of the invention it is formed integral with the plate 10, thereby presenting a simple, cheap, and effective construction.

The supporting surface 15 i of the-rest 141- is preferably formed flatfor properly supportingone surface of aheel lift" mounted on the rest, and in order to position the heel lifton therest, suitable guides or gages may be employed. In the present instance, the spring heel lift a is shown as formed of four piecesand is positioned upon the rest 14 by means of side gages 17, a breast beveling'lip 14: and an end gage '16. The gage 16 may be of the usual character employed in positioning lifts upon their supports; and adapted to engage the rear contour portion of the lifts, while the sidegages 17 may be which the plate 10 isadjustable and also in.

the plane of the adj acent face of the knife and theknife edge so that the knife cooperates with the edge of the lip in effecting a shearing out upon the heel.

The carrier or plate 10 has mounted thereon a clamp-for engaging the exposed surface of'the spring heel lift and clamping it upon the rest. In the present instance of the-invention the plate 10 has a portion 20 provided with a slot 21 through which passes the bolt 22 which constitutes the axis about which the clamp 23 may rock. The clamp 23 has a sleeve portion 24; and an eccentric or clamping section '25 which engages the exposed surface of'the spring heel lift on the rest. The clampis adjustable .on the carrier or plate 10 to different positions towards and from the surface of the rest, and in the present instance such adjustment is varied by the slot 21 through which the bolt 22 passes, the head of the bolt'taking into'the guides 26 at the back of theslot, the construction being such that by loosening the nut 27 the clamp'may be adjusted in the slot 21 and then secured in adjusted position.

Extending fromthe-cla-mp is an operat-' ing arm 28 which is normally under the in fluence of a spring 29 tending to move the clamp into unclamping position. In the illustrated instance the spring 29 has one end 30 secured to the operating arm 28 and the other end 31secured to a pin 32 mounted on the machine frame, the construction being such that the impulse of the spring 29 tends normally to throw the clamp into unclamping position. Secured to the operating arm 28 is a rod 33 which may be actuated by any suitable means, one good form of which may be a treadle, not shown. When the clamp is operated to clamp the heel the frictional engagement of the portion 25 of the clamp with the heel will force the heel towards the lip 14 and cause engagement of the lower edge of the heel breast with the lip throughout its extent before the said portion begins to slip upon the heel to apply clamping pressure to the heel to hold it in position for the action of the knife.

The position of the rest 14L relative to the carrier or plate 10 is such that when a spring heel lift is mountedon the rest, its breast will be in the axis of adjustment of the plate 10. This axis thus passes transversely of the rest 14: and substantially along the line of contact between the surface of the rest and the breast edge of the lift supported by the rest, or more particularly along the upper edge of the lip 14, the effect being that when the plate and rest are adjusted to different positions of inclination about the axis, the cutting operation of the knife 4 will commence its beveling or Wedge-shaping out Well back of the exposed edge of the spring heel lift and terminate its cutting action adj acent the line of contact between the surface of the spring heel lift and rest, or more particularly along the edge of the lip 14. Since the clamp for securing the lift upon the rest is mounted on the carrier or plate 10, it maintains its position relative to the rest as the plate and rest are adjusted'to change the inclination or plane of cut, and the adjustable connection between the plate or carrier 10 and the clamp provides a ready means for accommodating the machine for the treatment of spring heel lifts of different height or thickness.

Having described my invention what I claim as new and desire to secure by Letters Patent of the United States is:

1, In a machine for making spring heel Wedges, the combination of a knife movable in a predetermined path, a rest for supporting spring heel lifts for the action of the knife and having a fixed lip to position the breast of the lift, the rest being adjustable about an axis passing transversely of the rest'along that edge of the lip whichis more distant from the rest, and means for clamping the spring heel lift on the rest.

2. In a machine for beveling the breast edge of a spring heel lift, the combination of a knife movable in a predetermined path, a rest for supporting a spring heel lift for the action of the knife, means for adjustably connecting the rest to the machine frame for movement about an axis passing transversely of the rest through the line of cut made by the knife, and a clamp carried by the rest for engaging the upper surface of the spring heel lift and clamping it upon the rest in any position of rest adjustment, said clamp having a movement lengthwise of the heel while in engagement with the heel.

3. In a machine for making spring heel wedges, the combination of a knife movable in a predetermined path, a rest for supporting spring heel liftsfor the action of. the knife, a fixed lip for positioning the spring heel lift on the rest, the rest being adjustable about an axis passing transversely of the rest along the free edge of the lip, and means for clamping the spring heel lift against the lip and on the rest.

4. In a machine for beveling the breast edge'of a spring heel lift, the combination of a knife movable in a predetermined path, a rest for supporting a spring heel lift for the action of the knife, means for adjustably conneoting'the rest to the machine frame for varying the inclination of the spring heel lift relative to the path of the knife that the bevel given to the breast edge of the lift may be given a wedge form in substantial accordance with the inclination at the break of the heel,.anda clamp carried by said rest and constructed and arranged to be manually operated relatively thereto for engaging the top surface of the spring heel lifton the rest in any inclination of its adjustment and for clamping the heel on the rest, said clamp being arranged to apply a component of clamping pressure lengthwise of the heel.

5. In a machine for beveling the breast edge of a spring heel lift, the combination of a knife movable in a predetermined path, a plate carrying a rest for supporting one surface of a spring heel lift, means for connecting the plate to the machine frame for adjustment about an axis passing transversely of the rest along the breast line of a spring heel lift on the rest, a cam-shaped clamp pivoted on and adjustable with the plate for engaging the opposite surface of the spring heel lift in any position of inclination of the rest, and means for operating the clamp positively to clamp the heel on the rest.

6. In a machine for beveling the breast edge of a spring heel lift, the combination of a knife movable in a predetermined path, a stationary rest for supporting a spring heel lift, for the action of the knife, means for adj ustably connecting the rest to the machine frame for varying the inclination of the spring heel lift relative to the path of the knife that the bevel given to the breast edge of the lift may be given a wedge form in substantial accordance with the inclination at the break of the heel, and a swinging clamp carried by said rest for engaging the exposed surface of spring heel lifts of a the lip to be unaffected by the knife, and a clamp acting to force the heel against the lip.

17. In a machine for beveling spring heels, the combination of a knife movable in a fixed path, a heel rest inclined to the path of the knife and having a rigid lip thereon arranged on the sideof the knife toward the heel and serving to position the breast portion of the heel relatively to the knife so that the portion not engaged by the lip will be removed by the action of the knife and the relatively small portion of the breast protected by the lip will be unaffected, and a manually operated clamp acting to force the heel against the lip and hold it in position during the action of the knife. I

In testimony whereof I have signed my name to this specification.

THOMAS LUND.

Certificate of Correction.

It is hereby certified that in Letters Patent No. 1,477,574, granted December 18, 1923, upon the application of Thomas Land, of Beverly, Massachusetts, for an improvement in Heel-Breasting Machines, an error appears in the printed specification requiring correction as follows: Page 4-, line 112, claim 15, strike out the Words axle on. an and insert instead the word arc is; and that the said Letters Patent should be read With this correction therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 1st day of April, A. D. 1924:.

[SEAL] KARL FENNING,

Acting Commissioner of Patents.

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