US1320202A

US1320202A - Melville c

Info

Publication number: US1320202A
Authority: US
Publication date: 1919-10-28
Anticipated expiration: 1936-10-28

Description

M. C. CHAPMAN.

LAST.

APPLICATION FILED MAR. 31. 1919.

' 1,320,202. I Patented 06. 28,1919.

/ 2 woewbo'c (IX/tow e1 other objects in view, the invention consists 'MELVI'LLE o. cHAP AN, or FRAMINGI-IAM, MASSACHUSETTS.

' LAST. 7

Specification pf Letters l 'atent. Patented Oct. 28, 1919.

Application filed. March 31, 1919. Serial No. 286,301.

To all whom it may concern:

Be it known that I, MELVILLE C. CHAP- MAN, citizen of the United'States, residing at Framingham, in the county of Middlesex and State of Massachusetts, have invented new and useful Improvements in Lasts, of which the following is a specification.

This invention relates to a last, and more particularly to a last designed for use in the manufacture of arotics, or rubber shoes, the upper portion of which is somewhat high as compared with the upper of an ordinary rubber shoe.

One object is to provide a last formed in two parts, the body portion being cut in the usual manner from a section of the trunk of a tree, the upper portion being formed preferably of aluminum or some similar metal, and being detachable with reference to the body of the last. One of the chief advantages of this construction is that there is an important saving, So far as the piecefrom which the last iscut, is concerned, as a stick of timber of less cross section is available for making lasts for the purpose herein indicated, wherein the top must project beyond the edge of the shoe upper.

A further advantage is that a head formed of metal, and provided with the usual aperture for the pin, is more serviceable than a head formed of wood, in which the holes will'become enlargedthrough use, producing an imperfect fit so far as the pins are concerned. A series of metallic heads or lasts may be provided, of various sizes, and adapted for use with body portions of various styles and sizes, and the heads may be used indefinitely, being practically indestructible.

The detachable head may be provided with tubular members projecting from one surface of the head and adapted for insertion in bores in the body portion of the last, these bores being larger toward their outer ends than at their inner ends, forming shoulders against which the ends of the tubular members abut. These tubular members therefore constitute the connecting devices, as well as sockets for the pins employed in the usual manner.

The objects have been stated generally and broadly,

and with the foregoing and in the novel construction, combination and I arrangement of elements hereinafter described and-claimed.

In the drawings,

Figure 1 is a perspective view of a last with a detachable metallic head,

Fig. 2 is a vertical section,

Fig. 3 is a perspective view of one form of head, and showing the sleevesprojecting from the lower side therof.

- The body portion of the last is designated 10, and is of usual construction, the upper portion being provided with vertically eX- tending

bores

12 and 14, the outer portions of these bores being of greater diameter than the inner portions thereof.

As above indicated, it is not necessary that the body portion 10 of the last shall project from the shoe to be formed thereon, in view of the detachable top now to be described. This top or head is designated 16, and in exterior configuration conforms with the body of the last, it being the intention 7 that various styles and sizes of heads shall be manufactured to correspond with different sizes and styles of lasts, or body portions thereof.

The head is preferably formed of aluminum, and is provided with a central bore 17, which reduces the weight and saves metal, and with oppositely located

bores

18 and 19. Within the bores last named are fixed tubular members or

sleeves

20 and 21, these sleeves projecting from one surface of the head, namely the surface adjacent to the body portion 10. The sleeves project into the

bore

12 and 14 previously mentioned, and the ends of the sleeves engage respectively the shoulders 23 at the terminus of the enlarged portions of each bore.

These sleeves therefore constitute connecting elements and provide for the accommodation of the pins usually employed. Since the head is formed of metal, there will be no inconvenience arising from the enlarge ment of the holes through the head, and no danger of weakening the head when the latter is of limited cross section and the apertures or holes are near the edges thereof.

In the form shown in Fig. 3 the tubes 21 are cast in one piece with the head 16.

What is claimed is In a device of the class described, a body portion provided with vertical bores in the fixed Within the bores of the head, projectupper portion, the outer portions of the bores ing into the enlarged portions of the other being of greater diameter than the inner "bores, and abutting the shoulder iitormed portions thereof, a head, the edge portionof between the enlarged portion and the re- 5 which is of the same configuration as the maining portion ofjeech bore.

upper portion of the body, the head having In testimony whereof I-zttfix my signature.

bores elining with those first named, sleeves MELVILLE C. CHAPMAN.

Copies of this patent may be obtained for five cen'ts each, by addressi t commissioner Patents,

Washington, 20 5,, I V