US1059082A - Method of making lasts. - Google Patents

Description

R; 0. SIMMONS.

METHOD OF MAKING LASTS.

APPLICATION FILED SEPT. 8, 1908. RENEWED JAN. 22, 1913.

1,059,082. Patented Apr.15,1913.

VWT/VESSES. v I

. may be practised in making lasts other than UNITED STATES PATENT or RALPH c. SIMMONS, 0F nnvnmiyfmas'sacnusn'r'rs, ass enon fro MACHINERY oomranxor rarrnnson, NEW JERSEY, A. semen/amen JERSEY. 3

ao aaose.

Application filed September a, ieoaseria'l No. 452,051.

To all whom it may mam.- i k Be it known that I, RALPH C. SIMMONS, a citizen of the United States, residing at Beverly, in the county of Essex and Comdrawings, is a specificatiom like reference characters on the drawings indicating like parts in the several figures. N

This invention relates to methods of making lasts and is herein describedmore particularly as a method of producing a' lastcovered by an'application filed contemporaneously herewith. It will be understood, however, that the method herein disclosed that'described insaid application.

According to the present invention, a last is made from' a plurality of blocks which may possess, if desired,difi"erent characteristics. structed that the fiber of the wood in the heel partextends in'the direction of the height of the last, while in the forepart it extends longitudinally of the last. The method herein disclosed-may be also used to advantage in forming a last having sections differing in other ways. For example, the sect-io'ns may differ in the kind of wood used. the forepart being of maple and the'heel part of 'a tougher kind of wood, such as lignum vitae. The practice ofthe present method is'particularly advantageous in that it permits a last to be made from small blocks of wood which would otherwise not be suitable for use for this purpose.

In practising the present invention. the sections which are to compose the completed last are united beforethe fo0t-shape contour is produced. Bynniting the sections before forming the foot-shape contour, the production of this contour is much simplified and rendered capable of being effected considerably more cheaply than would be possible if the sections were separately turned and thereafter united. Furthermore in practising the present invention an exact registry of the sections is insured regardless of slight variations in the manner in which the sections have been united before the turning operation. If the sections were separately turned it would require great care to insure METHOD OF MAKING LAsrs.

Specification of Letters Patent.

The last herein shown is so c0n-' um-"anns miare itenewed January 22, 18-13.

that they would fit accuratel "together 1 the point of union; The sur ace in which the sections meet advance of the the last. The connection between the sections is preferablya permanent one. After the sections have'been united, :the block thus the desired foot-shape contour. the last is divided inthe usual way to place it in the form desired, either by severing. therefrom an instep'block, or, if

the manner customary in producing lasts of this kind. 1 v 1 Other features and advantages ofthe. invention will be her in fter pointed out.

r In the drawings, which show a last in various stages of manufacture according to a method embodying the present invention, F lgnre 1 is a View in perspective illustratin' the last sections, before-they are united an after their meeting surfaces have been .pre-

spective view showing united Fig.3 is a a completed last.

the last sections perspective view showlng erably glued. As indicated upon the drawings, the heel section 1 is so constructed that the fiber of the wood extends inthe direction of the height of the last while in the forepart section 2 the fiber extends longitudinally of the last. After the sections 1 and 2 have been firmly united. as indicated in Fig. 2, the last block is placed in a last turning lathe and turned to a desired contour. It will be seen that the mortise and tenon 'connection between the heel section and forethese sections from being displaced relatively by-the twisting force "which is applied to them in the last turning lathe. As will be obvious this force would be liable to'brcalc the glued joint between the sections it the .Eerial 'iitltiii lf formed is turned. in a last turning lathe to,

Thereafter" preferably'extends from Y side to side of the completed last and lies'in heel at the shank portion of itisto be a hinged last, by ,diyiding it at theshank in,

Referring to'the drawings, the reference i pared tobe" joined together; Fig. 2 is a'per- I parts. The meeting surfaces are alsoprefpart sectionis of advantage in preventing glue alone were dependent upon to resist relative displacement of the sections. Furthermore by uniting the sections by an interlocking joint, the extent of glued surface which resists breaking of the joint is made considerably greater than would be the case if the meeting surfaces were flat. After the last has been turned it may be prepared for use in the manner n'ow customary in the manufacture of lasts.

The last shown is provided with a removable instep block 4, severed in the usual way from the forepart of the last.

The union between the two sections of the last is preferably located at the shank portion of the last. This allows the entire heel portion to be constructed to resist vertical compression in the desired manner and also insures that theunion will'be sufliciently removed from'the toe to give themeeting surfaces suflicient area to produce a strong joint. A strong union between the sections is required not only in the opera-tion of turning the block to a foot-shape contour, but, as will be obvious, is necessary to give the last sufficient strength to resist the stresses,

' which it must undergo 1n the manufacture of cling operation. a

While the present method is particularly of advantage in'permitting a last- -to be manufactured from blocks of wood which would boots and shoes, particularly in the sole levotherwise .be too small to use for this purpose, it will be understood that the invention may be advantageously used in other ways. For example, the last blocks which constitute the ordinary raw material of the last maker may be divided to 'producethe sections to be joined. An' advantage incident to this manner of making lasts consists in the fact that the checks or small cracks which occur at the heel end of the last block may be placed in such a position'that they will not appear in the finished last.

.Having described my invention, what I claim as new and desire to secure by Letters Patent of the United States is 1. The method of making a last which consists in permanently and rigidly unitin two sections to form a last block in suc manner that the surface of union extends tions of a last block by a union formed by interlocking the meeting surfaces of the sections and thereafter turning the block to' a foot'shape contour.

3. The method of making a last which consists in permanently. and rigidly uniting a plurality of-wooden sections to form longitudinally'successive portions of a last block with the fiber of the wood in one section ex.- -tending at substantially right angles to the fiber in another section and thereafter turn: ing the block to a foot shape. contour.

' In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.-

. RALPH G. SIMMONS.

Witnesses; I

BERNARD BARROWS, ALLAN H. BARROWS.

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