US1326150A - Heel-cutting apparatus - Google Patents

Description

W. J. NESBITT.

HEEL CUTTING APPARATUS.

APPLICATION FILED JUNE 12. 1918.

Patented Dec. 23, 1919.

3 SHEETS-SHEET I N N m m pl lllzzgll lll d inventor Wit Hess:

AHI-o r11 ey.

' W. J. NESBITT.

HEEL CUTTING APPARATUS.

APPLICATION FILED JUNE 12, I918.

3 SHEETS-SHEET 2.

Patented Dec. 23,

lentov.

At't'orney W. J. NESBITT.

HEEL CUTTING APPARATUS.

APPLICATION FILED JUNE 12. 1918.

1,326,150. Patented De0.23,1919.

3 SHEETSSHEET 3.

Aftotnayf .theheel almost severed by the saw.

HEEL-CUTTING APPARATUS.

. les ee .To all whom it may concern:

Be it knownthat I,,WILLI M J. Nnsn rr, a citizen of the United States of America, residing at Los Angeles, county of Los Angeles, State of California, have invented a paratus; and itmay be said to consist in the provision of the novel and advanta geous features and in the novel and improved construction, arrangement, and combination of parts and devices as will be ap vparent from the description and claim which follow hereinafter.

The object of the invention is to provide anovel and improved construction of heel support that will resist the downward cu ting pressure of the circular saw while severing the heel. The advantages of the inventionwill be apparent to those skilled in the art from a careful consideration of the following description of the preferred form ofthe 'construction, taken in connection witlrthe accoinpanying drawings in which Figure 1 is a side view of the heel cutting apparatus with a shoe shown by dotted lines held in position for a portion of the heel to be cut away; Fig. 2 is a section on the'line 2-2 of Fig. 1, parts omitted and parts broken away, and a portion or the shoe shown in full l1nes and a portion of 3 is a section on the line 3-3 of Fig. 2, parts broken away, showing the threaded bolt in locked position.

Fig. i is a section similar to 8 with the threaded bolt turned to the unlocked position. Fig. is an enlarged view of the left hand portion ct Fig. 2, showing a heel of different construction, and with the rear portion worn away. and the saw having cuta straight passage through the heel. Fig. '6 is a view similar to Fig. 5 and showing t e heel w rtaway at the front,- and the saw also cutt g a straight path therethrough. Fig. '4" is a section also similar to'Fig. 5 with the disk removed from thebottom of the heel, and

showing that the yielding portion of the heel permits the saw to bend outward into Specification of Letters Patent. Patentgd Dec, 23- 1919,

Application filed June 12,1918. Serial No. 239,680.

a curvedplane, therebycutting a curved instead of a straight line."

Fig. 8 is a section onthe line 8-8 of Fig. 15 showing the bracket for holding the heel abutting disk, which is shown in detail in Figs. 2 to 6 inclusive. Fig, 9 is another, slde view of the {heel cutting apparatus, and also showing by dotted lines a shoe held in .positio n for the heel to be'severe d. Fig. 10 1s a iiragmentary View of a portion of the apparatus shown in 9 with parts broken away and omitted showing the heel'support that resists the downward thrust of the saw, the latter being shown by dotted lines. Fig..11 is a plan view of what is shown in Fig. 10; in this figure, however, the saw is shown in'full lines. 12 is a broken fragmentary section on the line 1212 of Fig. 10;;Fig. 13 is a broken fragmentary section'on the line 1313 of Fig. 10. Fig. 14 is a side elevation of the heel support removed from the machine. Fig. 15 is a plan view of the heel cutting apparatus, having thereon" a shoe shown by dotted lines in position to have a portion of the heel cut therefrom. Fig. 16 is: a section on the line 1616 of Fig. 15, showing the mounting of the driving shaft and its associated parts. Fig. 17 isa sec tion on the line 17-47 of Fig. 15. 18 is a side elevation of the supporting table removed from the pedestal, and with many associated parts omitted, and also showing the same side of the table as is shown in Fig. 9. Fig. 19' is a bottom view of a portion of the table and associated parts, looking in the direction of the arrows of the line 19 .9 of Fig. 17.

In detail the pedestal 10 has mounted thereon the stationary tablell which latter has a depending shank 12 that is secured in a socket 18 of the pedestal 10 by the set screw 14. To one side ofthe table 11 and integral therewith is the bifurcated bearing support 15 which has on the forked end the supports 16 and 17 in which the shaft 118 is mounted. On one end 01" the shaft 18 there is secured the thin saw 19 and on the other end there is looselymount- .ed a suroeket wheel 20 which by the chain 21 can be connected to some source of power not shown. Integral with. the sprocket wheel 20 is an extensionhaving a clutch member 22 which is engaged by the clutch The clutch member 23 is slidably mounted on the shaft 18 and keyed thereto by the key 24; and it is moved into or out of engagement with the clutch member 22, by means of the lever 25 which latter and its associated parts are of the usual construc tion.

From the foregoing it can readily be seen that the saw will remain stationary and the sprocket wheel run idle until the clutch is engaged, and that as soon as the clutch is moved to a clutching engagement the saw will be driven.

The table 11 is provided with a dovetailed groove 26 that is longitudinal with the plane of the saw, and into this groove is slidably fitted a tongue 27 of a movable table 28. The table 28 has on its upper surface a dove-tailed groove 29 that is at right-angles to the groove 26; and in this groove 29 there is slidably mounted the plate 30.

In one end of the plate 30 there is provided the pivot 31 on which is mounted the shoe holding plate 32. On the rear end of the plate 32, there is a bifurcated post 33 in which one end of the lever 34 is pivotally mounted, see Figs. 1, 9, 15, and 18; and toward the center of this lever 34 there is secured by screws 35 the jaw 36; and directly under the jaw 36 and in alinement therewith is a similar jaw 37, secured by screws 38 to the side of the plate 32, and these jaws are adapted to fit in the crease between the heel seat and the heel of a shoe and hold the shoe securely while a portion of the heel is being cut away by the saw. A handle 39 is provided to facilitate the operation of the lever 34.

WVith the shoe 40 clamped between the jaws 36 and 37 by means of the lever 34 it is moved toward the saw 19 for cutting off a portion of the heel 41 by means of the lever 42, which latter has a slotted end 43 loosely mounted on a pin bolt 44 which bolt is socured in the movable table 28.

The lever 42 is pivoted at 45 to a flange bearing 46 which latter is integral with the stationary table 11, and to facilitate the operation of the lever 42 it is provided with the handle 47. From the foregoing it can readily be seen that as the handle end of the lever 42 is moved in the direction of the arrow shown thereon in Fig. 9, that the table 28 and consequently the shoe holding means will be moved, together with shoe 40 toward the saw 19.

.The shoe 40 and consequently the means for holding it, are moved at right angles to the plane of the saw 19 in order to cut away a larger or smaller portion of the heel, which transverse movement is accomplished by means of the lever 48 and its associated parts shown in Figs. 1, 9, 15, 17 and 19. This lever 48 is pivoted at 49 to the underside of an extension 50 of the movable table 28, and one end of said lever is provided with an upwardly extending pin 51 on which is loosely mounted the roller 52 which latter is adapted to travel in the slot 53 in the extension 50 and also fits into the transverse slot 54 of the plate 30 by which means the latter plate is moved, and consequently its associated parts, to move the shoe holding means at right angles to the plane of the saw. The lever 48 is provided with a dog 55 which latter engages the teeth 56 011 the extension 50 to hold the plate 30 in a fixed position. The dog 55 is connected to a bell crank lever 57 by a rod 58 and said dog 55 is held in engagement with the teeth 56 by means of a spring 59 interposed between the bell crank 57 and the handle 60 of the lever 48. j

The plate 32 can be turned on the pivot 31 so as to change the angle of the shoe holding means and consequently the shoe to the plane of the saw and thereby enable the operator to cut oil a portion of the shoe heel at any desired angle. Integral with the plate 32 is a lever extension 61 which has on the end thereof the handle 62. On the underside of the lever 61 is a finger piece 63 pivoted at 64 and having the dog 65 on one end thereof that engages the teeth 66 on the end of the plate 30. The dog 65 is held in engagement with the teeth 66 by means of the spring 67 that is interposed between the handle 62 and finger piece 63, see Fig. 1.

In order that a very thin circular saw of common construction can be used for cutting off a portion of a shoe heel, and yet cut a straight line through the heel, a means is provided for holding the severed portion of the heel in place until the entire operation of heel cutting is accomplished. For, as is well known a thin saw will curve out toward the unsupported side of any yielding material such as is commonly used in shoe heel construction. And, as is well known, it is very desirable and also economical to use an exceedingly thin saw, especially on delicately constructed ladies shoe heels where neatness of repair is absolutely essential, and it is also just as essential that the cut through the heel be exactly on a straight line or produce on the bottom of the heel an exact plane. As illustrated in Fig. 7, the saw 19 entering the heel 41 at the point 68 and emerging at the point 69 has cut a curved plane through the heel; because the severed portion of the heel has recoiled from the saw while the unsevered portion has been rigidly held from movement from the saw by being clamped in the shoe holder.

In order to hold the severed portion of the heel in position until the complete cut is made as desired the following means are employed. To the side of the movable table 28 there is secured a bracket '70 by means of the squared bolt 71 and nut 72; and this bracket has an upwardly and rearwardly extending arm 73 which latter has on the end thereof the threaded nut 74.

Extending through the nut 7 1 is a threaded bolt 7 5 which has on one end the handle 76 and on the other the ball 77. The ball 77 is movably secured in the socket 78 of a boss 79, which latter is on one side of the disk 80 by means of the nut 81. The other side of the disk 80- is provided with a threaded socket 852 in which a threaded portion of a disk 83 is secured. The disk 83 can be made of wood, rubber or any other material that will not injure the saw if it accidentally contacts with it.

The nut 74 and the bolt 7 5 each has its threaded portion cut away on two sides so that by means of a quarter turn of the bolt 75 it and its associated parts can be quickly moved toward or away from'the heel, and again by a quarter turn locked in position. By the foregoing means the disk 83 is brought into contact with the bottom of the heel 11, after the shoe 40 has been clamped by the aws 36 and 37,to hold the severed portion of the heel in contact with the saw 19 until the entire heel cutting operation is performed and thereby prevent the saw from springing out of an exact plane.

As seen in Figs. 2, 5, and 6 the disk 83 readily adjusts itself to the bottom of the heel 4:1 by means of its ball and socket connection to the bolt 7 5, whereby both the thick and the thin edges of the severed portion of the heel will be held against the side of the saw to prevent the latter from cutting out of a straight line.

As seen by the arrows on the saw in Figs. 9 and 10, the saw travels through the heel with a downward thrust, which action has a tendency to tear the heel loose from the heel seat, and, in the case of high wooden heels, to split them.' In order to avoid the liability of thus damaging the shoes a heel supporting means is provided for overcoming the downward pressure of the saw on the heels.

As seen in Figs. 1 and 9 to 15 inclusive this heel supporting means consists of a roller 84, that is mounted in one end of the bell crank lever 85, which latter is pivoted at 86 to the movable table 28. By means of the lever 85 the roller 84- is moved into con 36 and 37 which are clamped in the crease between the heel and the heel seat of the shoe.

In operation a shoe is placed on the apparatus with the jaws 36 and 37 firmly clamped in the crease between the heel and the heel seat by means of the lever 34. Then by means of the lever 18, the shoe holding means is moved transversely to the plane of the saw to bring the heel in position where the cut is to be made, and by means of the lever 61 adjusted to the desired angle. Then the disk 83 is moved into engagement with the bottom of the heel and the supporting bolt 75 turned into a locking position. Also, if the heel is a high one and the cut to be made near the bottom thereof, the roller 84 is moved into supporting engagement with the heel. Then, assuming that the s rocket wheel 20 is being driven and the clutc members 22 and 23 are engaged and the saw 19 rotating, the heel 41 is moved against the cutting edge of the saw by means of the lever 42 which latter moves the table 28 and its associated parts longitudinally of the table 11, whereby a portion of the heel is cut away from the shoe, and the return or reverse movement is accomplished with the same lever.

While it will readily be seen that the disk 83 holds the severed portion of the heel in contact with the saw until the complete operation of heel cutting is accomplished at tention is also called to the fact that by means of the screw lock the disk 83 is held from pinching or applying pressure on the saw.

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

I claim:

In a heel cutting apparatus, the combination of a table, a shoe holding device mounted on said table, a saw for cutting off a portion of a shoe heel, said saw rotating to cut downward through said heel, a bell crank lever, and a roller mounted in one end of the bell crank lever, said lever being adapted to move the roller into and hold it in engagement with a shoe heel and hold the heel upward against the downward cutting pressure of said saw.

In testimony whereof, I have signed my name to this specification in the presence of two subscribing witnesses at Los Angeles, county of Los Angeles, State of California, this 4th day of June A. D. 1918.

WILLIAM J. NESBITT.

Witnesses:

ELLA SooTT CATHERINE J OHNSON.

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