US1709306A - Manufacture of wooden heels - Google Patents

Description

April 16, 1929. j BURGER 1,709,306

MANUFACTURE OF WOODEN HEELS Filed Nov. 17, 1927 B f zwimwoklvm Patented Apr. 16, 1929.

UNITED STATES :rosnrn BURGER, or nnookmfn, NEW vonx.

PATENT OFFICE.

MANUFACTURE OF WOODEN HEELS.

Application filed November 17, 1927. Serial No. 288,981.

are a special process by which two or agreater number of heels may be produced inthe same time and with substantially the same machinery as has heretofore been required for the manufacture of a single heel,

the special preparation of the rough material to enable such increased production and the special cutter mechanism to operate on the material so provided.

These and other important features of the invention will appear more fully as the specification proceeds.

a The drawin accompanying and forming part of the fol owing specification illustrates the method and special means by which the same is eiiected and as the same is primarily for purposes of disclosure, it will e understood that certain modifications and changes may be resorted to without departure from a the true spirit and scope of the invention as hereinafter described and broadly claimed.

Figure 1 is a broken perspective view illustrating the lumber as it is compounded and then cut up into multiple unit blocks.

Figure 2 is a perspective view illustrating one of the multiple unit blocks as it is grooved for the breast side of the heel.

Fi ure 3 is a broken side elevation, showin t e grooved double block as held in the j ac and acted on by a double cutter to simultaneously ,turn two of the heels from one of these double unit blocks.

Figure 4 is a perspective view illustrating the two heels thus simultaneously produced.

Figure 5 is a broken perspective view illustrating a method of temporarily joining the strips of heel lumber by adhesive applied along the meeting edges of the strips.

Figures 1 and 5 illustrate what may be considered the initial stagesof the process; that is, the securing of the strips of heel ma terial together to enable the simultaneous production of a number of heels. In the so cases illustrated, two such strips'or bars of gether,

heel lumber are shown at 7, 8, overlaid in coextensive relation and secured together in this fashion, in the first instance, by tapes 9 of adhesive material, such as paper or the like, and in the second instance, by lines of glue or other adhesive 10.

In both these constructions, the wooden strips are secured-together only along their outer edge portions, so that upon the cutting away of such outer edge portions, the members Will be automatically freed from each other. i

The compound lumber, made up of two or more strips thus temporarily secured toforms a unit which can be handled as a solid piece.

In the present practice of the invention,-

the compound strip is first cut on diagonal lines 11 of the proper inclination into heel blocks 12, as in Figure 1. These heel blocks are then grooved across one end, as indicated 1n Figure 2 at 13, to provide the breast faces of the two or more heels.

These grooved blocks held together at their edges, as indicated in Figure 2, are next secured 1n the clamp 14 of the jack 15, as indicated 1n Figure 3, and the two or more blocks are carried still as a single unit to the cutter, which as shown, has two or as many cuttlng edges 16 as there are individual blocks in the composite block unit. This cutter is preferably of the single spindle type covered 1n patents 1,595,975 and 1,595,976, so that with t e carr ing of the jack up to the cutter spindle, bot or if there be more than two, all the several heel pieces will be turned at once.

Figure 3 illustrates the parts of such a single spindle machine in which the sin le vert cal spindle is shown at 17 and in which the Jack is shown as having been brought up to the cutter blades and turned about half way to face the first side and extend the out part way about the back of the heel pieces, and it will be understood that the further rotative movement of the jack will extend the cuts made by these blades across the backs of the individual heels, around the opposite sides of the blocks to the far breast COI'IIGI'S.

' simultaneously produce a number of duplicate heels, or if desired, these cutting sections may vary so as to produce 1n one and the same operation, heels of different shapes or sizes. In the particular construction shown, the upper cutting section 16 is shouldered back at its lower end at l8 ad acent the upper end of the lower cutting sec tion 16, so as to enable the latter to enter beneath the fiat face of the upper heel piece. Two of the completed heels simultaneously produced by these operations are indicated at 19 in Figure 4, shown as they fall apart in their removal from the jack.

While, because of the saving of time and other advantages, it is preferred to turn the heels in the single spindle machines of the patents above enumerated, it will be clear that the invention may be used with advantage in the ordinary commercial types of double spindle heel turning machines.

The strips of heel lumber may be fastened together and kept in stock in that relation and then sawed into blocks, grooved and turned as required. This particular method, if used, has the advantage of giving the glue or other securing agent, plenty of time to set and harden before the material is subjected to the strains of sawing, grooving and turning, but it is not intended that the invention be limited to such a timing of the steps as different modes of fastening and other elements may vary the procedure more or less. The layers of heel stock are of the proper thickness and are held in the jack so that each layer will accurately meet the sections of the blades designed to cut a heel out of that particular layer. The layers may put together in long lengths of the stock and this operation may be economically and rapidly performed by automatic machinery so that the cost of thus preparing the stock is but a small item as compared to the advantages of simplified handling and increased production.

What is claimed is:

1. The method of manufacturing wooden heels which comprises securing together two or more layers of wood heel stock in coextensive face to face relation and then turning said compound multiple layer stock with a cutter having two or more complete heel turning edges alined respectively with the individual layers of the compound multiple layer wood heel stock.

2. The method of manufacturing wooden heels which comprises securing together in juxtaposed relation two or more wood heel blocks and then simultaneously turning all of said wood heel blocks while so held in such juxtaposed relation and with a cutter having a number of complete wood heel turning edges registered respectively with the individual heel blocks.

3. The method of manufacturing wooden heels which comprises securing together at their meeting edges only two or more wood heel blocks arranged in juxtaposed relation and then simultaneously turning the two or more blocks while thus heldwith a cutter having complete wood heel turning edges one for each block and arranged to trim away the secured edge portions of the blocks in the turning operation.

4. The method of manufacturing wooden heels which comprises securing separate lengths of wood heel stock in juxaposed relation, cutting the multiple la'yer compound stock so produced on inclined lines to form units each consisting of superposed wood heel blocks having inclined end faces and then turning the compound units so produced with a cutter having a complete wood heel turning edge for and registered with each of such heel blocks.

5. The method of manufacturing wooden heels which comprises holding two or more wood heel blocks in face to face relation, simultaneously grooving the ends of the several blocks while so held to form the breast faces on said heel blocks and then simultaneously turning all of said blocks while thus held with a cutter having a cuttin edge for and registered with each of said heel blocks.

6. The method of manufacturing wooden heels, which comprises holding a number of wood heel blocks in superposed relation and operating on said superposed heel blocks while so held with a cutter having superposed cutting edges relativel positioned each to register with one of t e thus held heel blocks.

7. The method of manufacturing wooden heels which comprises holding a number of angled wood heel blocks in superposed rela tion and turning said angled wood heel blocks while so held with a cutter having plural wood heel turning edges arranged each edge in alinement with one of said angled wood heel blocks.

8. Apparatus for simultaneously turning a plurality of wooden heels comprising a jack for holding a plurality of superposed wood heel blocks and a cutter having a plurality of wood heel turning edges superposed relation arranged to register eacllii with one of the heel blocks held in the J 9. Apparatus for simultaneously turning a plurality of wooden heels comprising a 5 jack for holding a plurality of superposed wood heel blocks and a cutter having a plurality of wood heel turning edges in superposed relation arranged to register each with one of the heel blocks held in the jack, said cutter being shouldered between the adjoining heel turning edges to enable each edge to turn a heel without conflicting with the turning of the next adjacent heel.

In testimony whereof I aflix my signature.

JOSEPH BURGER.

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