US1265487A - Heel-cutting apparatus. - Google Patents

Description

W. I. NESBlTT HEEL CUTTING APPARA TUS. APPLICATION FILED FEB.13.1917.

1,265,41 Patented May 7,1918.

2 SHEETS-SHEET I.

W. J. NESBITT.

HEEL CUTTI'NG APPARATUS.

APPLlCATlON FILED FEB. 13. 19H.

5,487. Patented May 7,1918.

2 SHEETS-SHEET 2.

1H7 mess.

WILLIAM J. NESBITT, 0F LOS ANGELES, GALIFORNIA.

HEEL-CUTTING APrAnA'rUs.

Specification of Letters Patent.

Patented May 7, 1918.

Application filed. February 13, 1917. Serial No. 148,410.

To all whom it may concern Be it known that I, WILLIAM J. Nnserrr, a citizen of the United States of America, residing at Los Angeles, county of Los Angeles, State of California, have invented a certain new and useful Heel-Cutting Apparatus; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to heel cutting ap paratus; and it may be said to consist in the provision of the novel and advantageous features and in the novel and improved construction, arrangement, and combination of parts and devices as will be apparent from the description and claims which follow hereinafter.

One object of the invention is to provide a novel and improved heel cutting apparatus in which the shoe holding device is adjustable relatively to the circular saw which is mounted on a pivoted arm and operated in such manner that said arm can be swung forwardly and downwardly to cut the heel of the shoe.

Another object of the invention is to provide a novel and improved construction for the bircular saw, which construction makes the circular saw work effectively and cut in a straight line, and which makes it practical to use comparatively thin metal at the marginal or cutting edge of the circular saw.

Other objects and the advantages of the invention will be apparent to those skilled in the art from a careful consideration of the following description of the preferred form of the construction, taken in connection with the accompanying drawings in which Figure 1 is a side elevational view showing the heel cutting apparatus; Fig. 2 is a broken bottom plan view of the table which carries the adjustable shoe holding device; Fig. 3 is a broken sectional view taken on the line 33 of Fig. 1; Fig. 4: is a side elevational view of the circular aw; Fig. 5 is a front elevational view of the circular saw; Fig. 6 is a sectional view of the circular saw taken on the line 66 of Fig. 4; and Fig. 7 is a broken View showing a heel partly out by the circular saw.

The frame consists of the hollow post 10 which has thereon the stationary forwardly extending table 11 which carries the shoe holding device.

The upper part of the post 10 is provided with the upright extensions 12 and 13 which have mounted thereon the shaft 14. An arm 15 i provided with a bearing 16, and it is provided atits upper end with the handle 17. The lower part of the arm 15 is arranged between the extensions 12 and 13 and is mounted on the shaft 14:. A shaft 18 is mounted in the bearing 16, and said shaft 18 has secured to one end thereof the circular saw 19, and it has secured to its other end the spur wheel 20. The latter is in mesh with the spur wheel 21 which is loosely mounted on the shaft 14c. On a stub shaft secured to the extension 12 is loosely mounted the sprocket wheel 23 which is suitably driven by the sprocket chain 24 and is connected to the spur pinion 25 which is in mesh with the spur wheel 21. The front lower part of the arm 15 has thereon the arm 26 to which is pivotally connected the upper part of tae link 27 which passes through the opening 28 in the upper part of the hollow post 10 and has its lower part pivotally connected to the foot lever 29 which latter is mounted on the pivot 30 on the post 10 and is connected to the retracting spring 31.

The circular saw 19 has its marginal portion 32 with the teeth 33 thereon of comparatively thin metal which is necessary in order to get the best results in cutting through the leather and metal nails of the heel of a shoe. In order to be able to make practical use of the comparatively thin marginal portion 32 and cause the latter to out in a straight line through the heel 37 of the shoe 38, the circular saw 19 is stiffened by having one side 34 thereof of gradually increased thickness from the inner boundary 35 of the marginal portion 32 to the central portion of the saw, and it has its other side 36 hollowed out or dished to reduce frictional contact of the saw with the heel in cutting the heel.

The adjustable mounting of the shoe holding device may be of any suitable or approved character; that shown consisting of the table 39 which is movable at a right angle to the circular saw 19 by being arranged in the guideway 10 in the stationary table 11, and the plate tl which has thereon the shoe holding device and is mounted to turn in a horizontal plane on the pivot 42 on the upper side of the table 39.

The shoe holding device shown in this instance consists of the upper and lower plates 48 and 44 which are adapted to fit in the crease between the heel seat and the heel of a shoe; the upper plate 43 being suitably mounted on the lever 45 which is provided with the handle 46 at its forward end and has its rear end mounted on the pivot 47 between the upright lugs 48 on the rear part of the plate 41, and the plate 44 being suitably arranged 011 the edge of the plate 41 adjacent to the circular saw 19.

The table 39 can be operated by means of the lever 49 which is connected to the pivot 50 on the underside of the stationary table 11 and has at its rear end a vertical projection or pin 51 which passes through the arc-shaped slot 52 in the table 11 and eX- tends into the straight slot 53 in the table 39,-the slot 53 being indicated by dotted lines in Fig. 2. The table 39 can be locked in adjusted position by the dog 54 which extends through a slot in the lever 49 and which is adapted to engage the teeth 55 on the table 11; said dog 54 being mounted on the pivot 56 on the lever 49 and being connected by the link 5 to the bell crank lever 58 which latter is pivotally mounted adjacent to the handle 59 on the forward end of the lever 49 and is normally pressed away from the handle 59 by the spring 60 which is interposed between the handle 59 and the bell crank lever 58. The plate 41 can be turned by the handle 61 which has one end attached to the plate 41 and hasonits other end the dog 62 which is mounted on the pivot 63 and is adapted to engage the teeth 64 on one end of the table 39 to lock the plate 41 in adjusted position.

From the foregoing the construction, operation, and advantages of the heel "cutting apparatus will be understood by those skilled in the art. hen the shoe 38 is placed on the plate 44 the lever 45 can be moved'downto have the plate 43 engage the shoe 8S and hold it in position. The table 39 can be 'moved by the lever 49 to adjust it at a right angle to the circular saw 19 according to the amount that it is de'siredto cut off of the heel 37. If it desired to make an angular cut through the "heel 37 the plate 41 can be turned by the handle 61 to have the heel disposed at the desired angle to the circular saw 1 9. By moving forwardly the arm 15 the circular saw 19 is moved forwardly and downwardly past the heel 3-7 to cut the heel; the spur 20 being driven by and riding on the spur wheel "21 during such operation.

The construction which has been particularly illustrated and described admits of minor changes and modificationswherefore the right is reserved to all such changesand modifications as do not depart from the spirit and scope of the invention which is defined in the appended claims.

I claim:

1. In heel cutting apparatus,the combina tion of a frame, a shoeholding device adjusta'bly 'mounted on said frame, 'a sha'fton said frame, an arm freely movable provided with a bearing and having its lower/end part pivotallly mounted on the shaft, a handle on the upper part of said arm, a shaft mounted in said bearing, a circular saw and a spur wheel mounted on the ends of the last mentioned shaft, a spur wheel loosely mounted on the first mentioned "shaft 'and in mesh with the first mentioned 'spur wheel, a

sprocket wheel rotatably mounted on the frame, and -a spur pinion connected to "the sprocket wheel and in mesh with the second mentioned spur wheel.

2. Heel cutting apparatus "provided with a circular saw for cutting the heel'of a shoe,

said saw having a comparatively thin nearginal portion with teeth thereon, and said saw being stiffened by having one side thereof "of gradually increased thickness from the marginal portion to the central portion of the saw, and the other side of said saw being dished from the periphery inwardly to reduce frictional contact of the saw with the heel in cutting the latter, substantially as set forth.

In testimony whereof I have signed my name to this specification at Los Angeles, county of Los Angeles, State of California, this 5th day of February A. D. 1917.

WILLIAM J. NESBITT.

Copies 'of this patent may be obtained for'fi've cents each, by addressing the Commissioner o f ratents,

Washington, 1).0.

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