US652616A - Last. - Google Patents

Description

Patented June 26, I900.

(No Model.)

fizz e @1244 l Lg u'eJ OSCAR HEATH, OF BROCKTON, MASSACHUSETTS, ASSIGNOR TO XVILLIAM B. ARNOLD, OF ABINGTON, MASSACHUSETTS.

LAST.

SPECIFICATION forming part of Letters Patent No. 652,616, dated June 26, 1900. Application filed May 4, 1897. Serial. No. 634,995. (No model) [0 all whom it nmg concern-.-

Be it known that I, OSCAR HEATrLof Brockton, county of Plymouth, State of Massachusetts,ha've invented an Improvementin Lasts, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

This invention has for its object the production of a novel last, one which may be easily applied to or taken from the shoe and which may remain in the shoe throughout the entire manufacture, including the leveling.

The hinge uniting the parts of myimproved last is of peculiar construction, and it is inserted in a novel manner and occupies a novel,

position between the heel and fore part of the last, and the abutting ends of the heel and fore part are so shaped that one part overlaps the other part, thus giving to the last the property of withstanding a large amount of strain without breaking down.

Figure 1, in side elevation, shows a last embodying my invention, the dotted lines showing the parts turned on the hinge-joint to shorten the last. Fig. 2 is a section of the last in the position it will occupy when in use in a machine and holding a shoe.

The object of my invention is to produce a transversely-divided last which is better adapted to withstand heavy pressures than the lasts of this class heretofore made. It has sometimes happened in practice that the fore part and heel part were forced out of alinement by the great pressures to which lasts of this class are subjected in the process of manufacturing machine-made shoes, and my invention contemplates the production of a strong and durable transversely-divided and preferably-hinged last which is not liable to have its fore part and heel part forced out of alinement.

The last is composed of a fore part A and a heel part B, and they are united together at a suitable distance from the bottom of the last by a hinge, preferably composed of two like folded sheet metal plates c c, notched at the ends Where the plates are folded, so that the projecting portions of the plates between the notches may be shaped to consti tute hinge-eyes, the projections of one half entering the notches of the other half and a pin 0 being inserted to complete the hinge. The fore part has an inclined abutment a, against which the wall I) of the heel part may rest when the heel part is fully turned on the hinge to shorten the last, as shown by dotted lines, the shoe when the last is shortened, as described, being left in such condition that by a straight pull on the fore part of the shoe it may be easily drawn straightfrom the fore part.

The fore part of the last is provided at the end of the abutment'a with a shoulder a, on which, as herein shown, rests the joint part of the hinge, and from the end of said shoulder the fore part is cut, as shown, to the bottom of the last to present an inclined face o The heel part at the end of the wall bis cut to' presenta shoulderb, the joint of the hinge lying between the said shoulders at and h',so that when pressure is applied to the bottom of the last, it being supported by a heel-pin, as d, of a standard, as cl, and the fore part resting on a suitable toe-rest d the said overlapping shoulders acting on opposite sides of the hinge at the hingeeye effectually resist the vertical strain. When the last is straightin a shoe and during the process of the manufacture thereof, the face a of the fore part and the opposite face 6 of the heel. part contact firmly together, and the force of said contact increases with the pressure. The hinge parts are inserted into suitable slots made in the fore part and the heel part, as fully shown in the drawings, and these slots are made substantially as continuations of said shoulders 05 Z), and when the last is in the position for use (see Fig. 2) the shoulder 12' lies directly on and overlaps the shoulder a, and it will be noticed that one half of the hinge occupies a different position in a horizontal plane from the other half. 7

I do not intend to restrict my invention in all respects to the kind of hinge shown, although this hinge forms a feature of certain of my claims, nor do I intend to limit myself in all respects to a hinge, as it will be noted that I make certain claims to the lines of out alone,

I regard the lines of cut, taken broadly, as an important feature of invention, and I therefore claimtheni as such. It-will beunderstood that I have herein shown and described as my preferable construction the last made for'withstanding the hardest service; but it will also be understood that lasts are used in many situations where such strength is not required and. that accord ingly various features of my invention are of value separately as improvements in and of themselves, capable of employment in subordinate and other capacities known to last users.

It will be understood that my invention is applicable to any usual shape, style, or kind of last, and for clearness and definiteness of understanding, however, of my invention .1

the hinge-eye and pintle have been largely required to withstand alone. By this construction it becomes practically impossible to force the fore-part bottom out of alinement with the heel-part bottom by vertical pres-' sure, as the thrust or strain which has heretofore tended to break, twist, or distort the hinge is transmitted directly to the heel part by means of the overlapping shoulders.

My invention is an improvement on or one 'specificmea'ns of carrying out the invention guished therefrom, among other respects, in

of are united by a hinge, said parts having the following particular,that whereassaid patented construction while disclosing, broadly, the idea of so cutting the heel part from the forepart that the wood of the heel part would sustain a portion of the downward vertical thrust or'pressure on the last when in use the particular line of cut shown in said patent would result in a more or'less sliding tendency and would therefore require that the partsof the last (if used in leveling, for instance) should be connected by some sort of a joint or hinge for preventing this sliding tendency, I whereas I provid'e'a construction in which 1' there is no sliding tendency, but all the ver- 5 tical pressure is directly borne by the heel part. It will also be understood that l have shown a hinge and have shown the particular angular cut at the crown of the last and the straight line or cut at to extending obliquely forward to the bottom of the last merelyas ;showing my invention applied to one conven tional kindof last commonly in use on the "market; but I wish to make clear that my invention is applicable to any and all kinds of divided lasts.

Having fully described my invention, what I claim, and desire to secure by Letters at- Ient, is g I 1. In a divided last, a fore part having an abutment and a projecting shoulder at its end, combined with aheel part having a wall extending at an angle away from said abut= ment when the last isin-eXt-ended position, with a shoulder at the end of said wall, the said shoulders being shaped to'ove'rlap one the other in the same vertical plane, substantially as described.

2. A last divided transversely by lines of cut forming at the top of the last-a gap or open space permitting the heel part to'turn up on the fore part with a swinging movement about the bottom of said gap for shortening the last, the parts at opposite sides the line of division presenting horizontally-oven lapping shoulders, whereby one may be vertically supported by the other when the last is in use, substantially as described. I

3. The combina-tionyin a transversely-divided hinged last, of a hinge having an ey'e with opposed hinge-eye-bearing shoulders, one on the fore part on one sideof said eye, and the other on the heel part on the o'ther side of said eye, substantially as described.-

i. A-multipartlast-whereinthe partstherethe leaves of the hingeembedded'within them up to the pintle thereof on opposite sides thereof, and said leaves, viewing the edge of tended position, being out of alinement sub stantially as described;

{name-to this specification in the presence of L two subscribing witnesses; OSCAR- Witnesses: I

GEO; W. GREGORY,

A'nmn F. DANIELS".

; the hinge at the side of the" last when in ex In testimony whereof I have signed my

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