US1755400A - Wood-heel-making machine - Google Patents

Description

R. F. KNIGHT WOOD HEEL MAKING MACHINE Filed Ju1y 19, 1928 April 22, 1930.

- Figl.

Patented Apr. 22, 1930 nALPH F. KNIGHT, OF BEVERLY,

OHINERY CORPORATION, OF PATERSON,

JERSEY MASSACHUSETTS, ASSIGNOR T0 UNITED SHOE MA- NEW JERSEY, A CORPORATION OF WOOD-HEEL-MAKING MACHINE Application filed. July 19, 1928. Serial No. 294,007.

This invention relates to machines for use in making wood heels. In the making of wood Louis heels, especially, it is generally necessary to insert a wooden dowel running from the top-lift receiving face of the heel toward its attaching face to avoid danger of breaking the long thin waist of the heel in wear. This dowel is glued in a hole which has been formedin the heel block by means of an ordinary drilling machine, the heel being suitably gaged and supportedunder the drill and held against movement by the operators fingers. This results in occasional injury to the operator and in continual loss of time, as the operators other hand is engaged in operating the drill, and he is unable to reach out for another heel until the one in the machine is finished.

7 It is an important object of the present invention to provide amachine in which a heel may be conveniently, efficiently and automatically gaged and held for drilling or other treatment.

I have, therefore, provided a machine, illustrated as of the type having a vertically reciprocating drill or other tool, with means for positioning and gaging a heel relatively to the tool and a clamping means for a heel arranged to hold it firmly under the' drill or other tool and to'be automatically rendered operative or inoperative upon movement of the tool toward or from the work.

The clamping means is preferably automatic and as illustrated is arranged to clamp the work resiliently, upon movement of the tool toward the work, before the tool engages the work, and to be released, by movement of the tool away from the work, after the tool is disengaged from the work. i

These and otherfeatures of the invention comprising various combinations and arrangements of parts will be understood from the following description of a preferred embodiment of the invention shown in the drawings, in which Fig. 1 is a front view-of the machine;

Fig. 2 is a similar view of a part of the machine, the machine being equipped with a different operating tool;

Fig, 3 shows the finished heel;

Fig. 4 illustrates the the curving operation; and

Fig. 5 is a plan view illustrating the gages.

The frame 10 of the illustrated machine carries a head 12 in which a tool spindle 14 is mounted for rotation and vertical reciprocation. The spindle 14 may be rotated in any convenient manner and is illustrated as provided with a pulley for belt drive. and lowered by a handle 16, with suitable rack and pinion gearing. The spindle 14 carries a collar 18, to which is attached a screw 20 passing through a lug 22 on the head 12, and nuts 24, 26 on the screw limit the upward and downward movement of the spindle.

The frame 10 carries a bracket 28 on which is pivotally mounted at 30 one end ofa table 32. The table 32 is adjustable about its pivot by means of a screw 34 and is held in adj usted position by a bolt 36 with suitable lock nuts 38. A plate 40, having an extension 42, isfastened to the other end of the table 32 by a bolt and slot arrangement, as, shown, in-such a manner as to permit vertical adj ustment of the plate 40. A lever member 44 is pivoted at 46 to the upper end of the plate 40, and at one of its ends has asliding connection with the upper end of a rod 48, the lower end of which is pinned to the end of the extension 42. A spring 50 surrounds the rod 48 between the members 42 and 44 and tends to throw the member 44 counterclockwise (Fig. 1) around the pivot 46. A clamp 'jaw 52, with a hole 54in it to permit vertic'al passage of a tool '56, shown as a drill in Fig. 1, is fastened to the inner end of the lever 44. A rod 58 is pivotedto this end of the lever 44 and extends up through a hole 60in the collar 18. A nut 62 on the rod 58 rests on the collar. There is no nut on the rod below the collar so that the rod and collar have a lost motion connection with each other. Thus, when the spindle 14 and collar 18 are raised by the'handle 16, they'will pull the inner end of the lever 44 through the rod 58 andraise the clamp jaw 52, compressing the spring 50, and vice versa. The spring 50 will, however, always be under substantial compression, in any position of the clamp jaw machine arranged for It is raised 64; into the optimum vertical position,

' permit the clamp 52. The nut 62 is preferably adjusted so that the clamp 52 will leave the work (it after the tool 56 has been pulled completely away from it, and will strike the work before the tool engages it.

Two gages are provided for, the heel 6a. The breast gage 66 is in the form of a flat bar arranged with its gaging side running across the heel from side to side, and is adjustable toward and from the heel by a bolt and slot 68. This gage determines the fore and aft position of the heel, and also its horizontal orientation on the plate 32, by its contact with the breast of the heel. A side gage 7 0, which is laterally adjustable by a bolt and slot connection 72, determines the lateral position of the heel, that is, tion perpendicular to the plane ofthe drawing. The gage 70 is spaced from the table 32 to avoid contact with the sharp edge forming tne junction of the attaching face and the lateral surface of the heel.

In use, the table 32 is tilted to the proper angle to bring the shank or waist of the heel the plate i is vertically adjusted if necessary according to the height of the heel in order to 52 to lie substantially flat on the top-lift surface of the heel, and the gages are adjusted to. bring the heel into proper position under the tool 56. The clamp 52 is held in lifted position above the heel during these adjustments by the rod 58 since the tool is raised. The operator then lowers the tool by the handle 16, the spring expands somewhat, and the clamp 52' engages the work before the tool strikes it and presses it against the table 32 by virtue of the spring 50 while the tool is in contact with it. Mean while the operator takes another heel and when the cut is finished raises the tool again. After the tool leaves the work the clamp 52 is disengaged and the operator then knocks the finished heel aside and inserts a new one, holding it with his fingers until the clamp 52 has descended upon it. y

In Fig. 2 the machine is arrangedfor a sea-Hoping operation commonly termed the curving operation, which consists in trimming the toplift end of the breast of the heel, as shown at 74 in Fig. 3. To effect this a milling cutter 7 6 is substituted for the drill 56. The operation of the machine is the same as described above.

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

1. In a machine for making wood heels, a

vertically reciprocable tool, a table under the tool adjustable about a horizontal axis to bring the shank of a Louis heel on the table into a substantially vertical position, gages for orienting the heel and positioning itsshank under the tool, a resilient clamping means arranged to'e'ontaet with the upper surface ofthe heel, and a lost motion connection between the tool and the clamping means whereby the lifting of the tool from the heel renders the clamping means inoperative.

2. In a machine for making wood heels, a reciprocable tool, a table adjustable to tip a Louis heel on the table about an axis extending transversely of the path of reciprocation of the tool, gages for orienting the heel and positioning its shank under the tool, clamping means arranged to contact with the surface of the heel, and a connection between the tool and the clamping means whereby the disengagement of the tool from the heel renders the clamping means inoperative. in a direc- 3. In a machine for making wood heels, a vertically reciprocable drill, a table under the drill pivotable about a horizontal axis, a straight gage bar adjustable in a directionperpendicular to its length and arranged to contact with the breast of a heel on the table to orient it and'to gage it in a fore and aft direction, an adjustable side gage for gaging the heel laterally,- a pivoted clamping member arranged to contact with the upper end of the heel to clamp it against the table, a spring for actuating the clamping member and tending to hold it always in clamping position, and a lost motion connection between the clamping "member and the drill whereby the raising of the drill out of the work lifts the clampingmember from the work. r I 7.

l; In a machine for'making wood heels, a vertically reciprocable drill, a table under the drill pivotable about a horizontal axis,

a straight gage bar adjustable in a direction perpendicular to its length and arranged to contact with the breast ofa heel on the table to orient it and to gage it in a fore and aft direction, an adjustable side gage for gaging the heel laterally, a pivoted clamping member having a vertically adjust-able pivot and arranged to contact with the upper end of the heel to clamp it against the table, a spring for actuating the clamping member and tending to holdit always in clamping position,

and a lost motion connection between the clamping member and the drill whereby the raising of the drill out of the work lifts the clamping member from the work.

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

RALPH r. KNIGHT.

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