US857117A - Last. - Google Patents

Description

I transversely of the. saw kerf, for holding'the the rear of said kerf for the jack-pin, and one for binding the wood of the hcelpart tocrush it vertically, burst it laterally, and

,must be made strong; and hence various ex- .the problem, most of them depcndin upon tlvrrnn 'srarns earns-r orrton FREDERICK JOHNSHAINSEY, Sit, OF DAYTON, OI-llO. ASSIGN OR TO KR'ENT- LEE-ARNOLD HINGE LAST COMPANY, OF DETROIT, MICHIGAN, A COR- PORATION OF EST VIRGINIA.

LAST.

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Be it ,known that I, Fnnnnnrcit Jonx Snanvsnr, Sr, a citizen of the United St ates, and resident of Dayton, in the county of l Montgomery and State of Ohio, have in-l vented an Improvement in Lasts, of which Lire following description, in connection with l accompanying drawings, is a specification, like letters on the drawings representing like parts.

My invention relates to improving the heelpart of a hinged last in strength, external surface, or shape, and general serviceableness. a

One of the most serious difficulties met with in the raetical manufacture and use of niulti-part asts, especially hingedlasts, resides in the'weakening of the heelpart which necessarily results from the numerous saw cuts, holes and rivets to which the heelpart is subjected in order to accommodate it to the deviceswhich are necessary for its construction. For example, the front end thereof is cut obliquely dbwn to the swinging point of the lastand is thence severed along the line of the sliding faces of the forepart and heelpart, a vertical longitudinal saw k erf extends into the front end of the heelpart for the reception of the hinge, one or more rivets extend through the forepart hinge, a vertical spindle hole is provided at or more holes and rivets extend transversely through the heelpart-adjacent the thimble gether. All this honeycombing of the heel weaken it; and when it is remembered that the heelpart-of a last is, at best, small, nar- 1 row, short and frail, the reason is apparent for the extreme difficulty to which we have i alluded. However, as the heelpart is obliged t towithstandenormous pressirrea in the heel ing operation, leveling, etc, winch tend to split it longitudinally, the said heelpart pedients have been resorted to and many ewe been patented for practically solving various arrangements and locations or bolts or r vets. These latter, however, are sub- Specification of Letters Patent.

Application filed er 1,1904. Serial No. 230,903.

Patented June 18, 1907".

ject to two. serious objections, viz., they weaken the wood by cutting it across the grain at various vital points, and they mutilate the exterior surface, which should be whole and smooth in order not to deface the shoe lining and interfere with the proper manufacture of the shoes.

Accordingly my present invention aims to provide a further in'iproveinent in this line, which secures the desired strength and bracing cflcct without materially weakening the wood or mutilating the smooth external surface of the heelpart where it comes in contactwith the shoe lining.

In carrying out my invention I employ a flared at the proper angle for giving the;

greatest strength of resistance to the complex strains which the various operations above alluded to bring upon the heelpart of a hinged last in manufacturing a shoe.

In the following description, taken in connection with the accompanying drawings, I point out further constructional details and advantages of my invention with'reference to the preferred embodiment thereof herein disclosed, and in the appended claims the in vention is still further defined.

In the drawings, Figure 1 is a perspective view of a last containing my invention. Figs. 2 and 3 are sectional vertical views thereof taken on the line 3, Fig. -1, showing different binding means for the retaining me lnber. Fig. 4 is a similar vertical sectional view on the same line, showing the last formed for receiving the retaining member.

I have shown my invention applied to that form of hinged last known in the market as the Krentler two piece last and found in Patent No. 608,006 of July-26, 1898 and No. 764,89l of July 12, 1904, comprising a fo1'e part a and a heelpart a connected, by a vertical plate hinge a pivotally mounted at a in the forepart and held by transverse bolts v Located between the jrrontend of the heelpart and said spindle socket, I provide a re.

'tai'ning member b which, in its construction, location and arrangement with relation to other parts, constitutes my invention. I first bore opposite vertical holes I), 6 through the last from top to bottomslightly divergent toward their lower 'ends, as clearly shown in Fig. 4, and connect their'upper. ends by a groove 6 Viewing the drawings, it'will be seen that these holes are located at either side of the vertical hinge, whoseposi- 1 tion is indicated in dotted line, Fig. 4, and are preferably in a transverse plane at the rear of said hinge. Also these holes are- .placed obliquely, as shown in Fig. 4, at such an angle that they do not correspond with the natural line-0t cleavage of the wood and are not in the same vertical plane with any I member b is located at such a point that there and parts.

as shown in Fig. 2'. The result'is that the wire member Z) isretam'ed in such a manner and position as ,to' resist splitting and spreading tendencies in Whatever direction they naturally come in connection with the various steps of shoe manufacture. The retaining is very littletendency for theheelpar't to .be crushed and hence said member distorted vertically at that point, and yet it is in the very position where it can protect to best advantage those parts which are liable to become crushed and split and all this is accomplished without mutilatingor cutting into the sidewalls of the he'elpart in any way whatever. This is a point of-great practical value and importance in certain departments of shoe manufacture.

VVi thout undertaking to set forth all the advantages and embodiments of my invention (as I am aware thatlvarious changes in form, arrangement and location of I parts may be resorted .to without departing from my invention) what I claim as new and desire to secure by Letters Patent of the United States is with a vertical U-shaped binding'member cured at the bottom ofv the last.

with a vertical U-shaped binding member whose legs are entirely surround ed by the wood of the heelpart, said legs at their lower ends having lateral enlargements for anchoring said member in unyielding position.

- with a vertical U-shapd binding member wood of vthe heelpart,=and a heel plate, said late. v Alast, comprising a forepart' andiheelits rear-portion extending vertically into the front end of the heelpart, and an inverted U- shaped .retainingmember located between the spindle socket of the last and the front end of the heelpart, said retaining member having its. legs extending vertically in .and

permanently secured in said heelpart.

5. A divided last, whose parts areconnectverted U-sh'aped retaining member embedded in the heelpart and having its legs extending divergently downward and entirely surrounded by'the Wood of the heel part adjacent theoppositefsides of the lat-v ter, and. means for permanently retaining said member in position, y

6. A divided last, comprising and heelpart, a vertical hinge connecting the cally in the heelpart of said last at the'oppO- site sides of said hinge. v

7. A; last, having its fheelpart provided with a vertical jU-shape'd binding member and means for binding together the'fre'e ends of the legs, thereof. 7

't wo subscribing witnesses.

Fastener JOHN SHAINSEY, SR.

Witnesses:

J oHN vMcGrnneoR, N. J BLAKENEY.

1. last, havii1g its heelpart provided.

2. A last, having its heelpart provided- 3.'A last, having its-jheelpa'rt provided legs being riveted permanently to said heelpart, hinged together, the hinge part having surrounded by the woodof the lastat the opposite sides of, and out of vertical alinement.

with, the rear portion ofsaid hinge partand ed bya vertical union, combined with an insame, and binding imeans extending verti- In testimony whereof, I have signed my name to this specification, in the presence of whose legs are entirely surrounded by the" wood of the heel part" and permanently se-. j

whose legsare entirely surrounded by the.

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