US1400700A - Heel-breasting machine - Google Patents

Description

G. S. TOLMAN, JR.

HEEL BR'EASTING MACHINE.

APPLICATION man MAR. 26, 1920.

1,400,700, I Patented Dec; 20, 1921.

enonen s. romaan, art, or 'wALroLn, raassacnusnr'rs, Assrenon TO came sir-Ion MACHINERY conrona rron, or ra'rnnson,

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NEW JERSEY, a cameraman or HEEL-BREASTING IEACHINE.

anai co.

Application filed March 26, 1920.

tain Improvements in Heel-Breasting Ma chines, 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 breasting heels, and particularly to machines for forming the breast portions of heels which have a longitudinal curvature, such heels being known as Louis or French heels.

feels of this kind have been breasted formerly to a large extent by a machine of the type disclosed in United States Letters Patent No. 78%,340, granted March 7, 1905, upon application of-B. F. Mayo. The machine disclosed in this patent is provided with a horizontal shaft having a rotary cutter upon it and a shoe support movable tangentially of the path of rotation of the cutter,

a shoe being held upon the support with its longitudinal median plane parallel to the cutter shaft, and the shoe support being moved to carry the heel across the cutter to cause the cutter to traverse the heel from side to side and to form'a breast surface on the heel which is curved longitudinally of the heel. In the machine of the prior patent the cutter blades are inclined to the cutter axis so as to cause the cutter blade to act upon the heel with a scraping cut, that is, the angle between the advance Or leading face of the cutter blade and the portion of the breast treated by the cutter is acute. W hen the heel is lifted to engage the cutter thus arranged, the heel meets the cutter with considerable shock t the cutter which may result in breaking the cutter off, the detached portion flying outwardly with great force due to centrifugal action of the rapid rotation of the cutter, and greatly endangering the operator. Moreover, the scraping action of the cutting edge renders it difficult to secure as clean a cut as is desirable, particularly on the side of the heel where the heel leaves the cutter.

An object of this invention is to provide a machine of this type which, while retaining all the valuable features of the prior Specification of Letters Patent.

eaten tea net. 20, 1921! Serial N0. 363,893.

machine, willbe entirely safe for the operlatoil and will effect a smooth out upon the lee A feature of the invention consists in an organization including a bladed, rotary cutter, a shoe support, and means for effecting a relative movement of said support and said cutter to cause the cutter to trim the breast of the heel from one side of the shoe to the other side, the blades of the cutter being arranged so that the advance or leading-face of each blade as it comes into action is at an obtuse angle to the face of the heel upon which it acts. Asshown herein the cutter shaft is horizontal and the work support is arranged for substantially vertical movement to carry the work across the cutter, the planes of the advance faces of the cutter blades being arranged at an angle to the line of the direction of movement of the work support so that the edge of the cutter blade which acts upon the heel is in advance of the opposite or non-cutting edge of the blade and the blades act with a clearing instead of a scraping out.

As shown herein the cutter is on the end of its shaft and the cutter blades are arranged in planes which diverge with relation to the shaft and, if extended, would intersect the shaft. The blades are also divergent in a dir ction away from the heel.

These and other features of the invention will appear more fully from the following description when read in connection with the accompanying drawings and will be pointed out in the appended claims.

In the drawing- Figure l is a front elevation of the head of a machine embodying this invention;

Fig. 2 is an end view of a cutter head with which the machine is provided showing its relation to a heel being breasted;

Fig. 3 is a top plan view of the cutter and heel; and

Fig. 4: is a sectional view of the heel and cutter on the line 4% of Fig. 3.

Referring to Fig. 1 of the drawing, the numeral 2 indicates the frame of the machine head in which is journaled a shaft 4 arranged to be rotated rapidly by a belt 6 from any suitable source of power. A cutter head 8 is attached to one end of the shaft 4 and is provided with blades 10, 12 which are inclined to the axis of the shaft in such a manner that the planes of the blades, when eX- tended, intersect the shaft. In other words, the blades lie in planes which are divergent with respect to the shaft. A shoe rest 1s provided against which the shoe is held nrthe hands of the operator, the rest comprising, as shown, a tread plate 1 1 having on the edge next the cutter a lip 16 which is elevated slightly from the plane of the tread plate. The tread face of the heel of a shoe is placed against the tread plate 14 with the edge of the top lift resting against the lip 16, the hp serving to locate the heel longitudinally but being of such slight extent vertically of the heel that substantially the entire breast face of the heel is presented for the action of the cutter (Fig. 8). The tread face of the forepart of the shoe rests against a forepartrest 18 which preferably is arranged for ad ustment to accommodate lasts of different spring. As shown, the rest 18 is provided with a stem 19 which is held by a split clamp in a member 20 which also carries thetread plate 14. The tread plate 14: and the rest 18 determine the position of the shoe in its longitudinal median plane and the lip 16 locates theshoe longitudinally, It will be observed also that the longitudinal median plane of the shoe is parallel with the axis of the shaft 4. The member 20 is adjustably fixed to the upper end of a vertical rod 22 by means of a set screw having a handle 23. By loosening the set'screw 23 the member 20 may be roated about the axis of the rod 22 to vary the relation of the heel relatively to the cutter.

The heel engaging face of the lip 16 is arranged in the axis of the rod 22 so thatthis adjustment does not disturb the position of the breast edge of the top lift which. engages it relatively to the cutter. The rod 22 has a long vertical bearing 25 in a bracket 27 secured to the frame and is moved longitudinally by suitable means, for example a treadle, to carry the shoe rest and shoe heel tangentially across the cutter. Each of the.

cutter blades is contoured, as shown in Fig. 3, to form a'Louis or French heel having a longitudinal curvature, a side edge 2 1 of each blade being sharpened to form the breast face of the heel and the end portion of 26 being sharpened and contoured to form the base portion of the heel. The blades of course act in turn in rapid succession upon the heel, and in order to cause the cutting edges of the, blades to act with a clearing out the blades are arranged in divergent relation relatively to the shaft and heel as previously stated. This relation will be clear from Figs. 2 and 4 where it will be seen that the advance or leading face 28 of each blade is at an obtuse angle to the breast face of the heel while in engagement therewith. The cutting edge has therefore a true' cutting action similar to that of the cutting blade of a plane upon a piece of wood as distinguished from a scraplng actlon such as heel or at an acute angle to it. The blades therefore make a clean out upon the heel and remove the excess of material very quickly and without excessive strain upon the shoe heel or upon the cutter. Breaking of the cutter blades is thereby avoided and improved results obtained upon the work.

Having thus 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 breasting Louis heels, the combination of a rotary cutter having a plurality of cutter blades, and means for supporting a shoe with its longitudinal median plane parallel to the axis of the cutter, said cutter having its cutting faces con structed and arranged at an-obtuseangle to th breast face of the heel to cause the cutter to act upon said face with a clearing out.

2. In a machine for breast'ing Louis heels, the combination of a bladed rotary cutter, and a work support movable tangentially of the cutter, the blades of the cutter being contoured to cut the breast and base portion of a Louis heel held on said support and said blades being arranged to diverge away from the heel.

3. In a machine for breasting Louis heels, the combination of a shaft, abladed rotary cutter mounted on the end of the shaft, the planes of the blades when extended intersecting the shaft, and means for presenting a heel breast for the action of the cutter at the periphery of the cutter and at the side of the cutter which is toward the shaft.

4. In a machine for breasting Louis heels, the combination of a bladed rotary cutter, and a work support movable tangentially of the cutter,the blades of the cutter being contoured to cut the breast and base portion of a Louis heel held on said support and constructed and arranged to effect a clearing out upon the heel breast.

5. In a machine for breasting Louis heels, the combination of a bladed rotary cutter on the end of a shaft, th planes of the blades when extended intersecting the shaft, and means for presenting a heel breast for the action of the cutter at the periphery of the cutter and at the side of the-cutter which is toward the shaft to cause the cutter blades to act successively upon the heel with clearing cuts. T

6. In a machine for forming the breast of Louis heels, the combination of a shaft, a cutter head on the end of the shaft, cutter blades on the head arranged with the planes of their advance faces divergent with respect to the shaft, and means for relatively moving a shoe and the cutter tangentially of the cutter with the heel of the shoe on the side of the cutter next to the shaft, the

cutter blades being contoured to form the breast of the heel with a longitudinal curvature.

7. In a machine for forming the breast of Louis heels, the combination of a shaft, a cutter head on the end of the shaft, cutter blades on the head arranged with the planes of their advance faces divergent with respect to the shaft and having peripheral cutting edges and side cutting edges on the sides of the blades toward the shaft, and means for relatively moving a heel and the cutter tangentially of the cutter to cause the peripheral edges to act on the base portion of the heel and the side cutting edges to act on the breast of the heel.

8. In a machine for forming the breasts of Louis heels, the combination of a shaft, a cutter head on the shaft, cutter blades on the head arranged with one side edge in advance of the other, the advance edge being sharpened, and means for moving a shoe tangentially of the cutter with the heel of the shoe on the side of the cutter adjacent to the sharpened edge, said edge being contoured to form the breast of the heel with a longitudinal curvature.

9. In a machine for forming the breasts of Louis heels, the combination of a shoe support, a shaft, a cutter head on the end of the shaft, cutter blades on the head having peripheral cutting edges and side cut ting edges on the sides of the blades toward the heel of a shoe on the support and non-cutting edges on the sides of the blades away from the heel, said side cutting edges breast of the heel.

10. A heel breasting machine having, in combination, a rotary cutter comprising blades inclined to the axis of rotation, a work support, and means for moving rela tively the cutter and work support to cause the cutter blades to act on the heel breast with a clearing out.

11. A heel breasting machine having, in combination, a rotary cutter comprising blades having end and side cutting edges, a work support, and means for relatively moving the cutter and work supportto cause the side cutting edges of the blades to act on the heel breast with a clearing out.

12. A heel breasting machine having, in combination, a rotary cutter head, blades arranged tangentially of the head in planes making equal and opposite angles with the axis of rotation of the head, and means for presenting a heel breast to the convergent sides of the blades.

13. In a machine for breasting heels, the combination of a rotary cutter having cutting edges arranged relatively to the cutter and the heel to effect a clearing out on the heel breast, and means for guiding the heel in a rectilinear path relatively to the cutter to cause the cutter to breast the heel.

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

GEORGE S. TOLMAN, J12.

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