US391467A

US391467A - Asjignob to william

Info

Publication number: US391467A
Authority: US
Publication date: 1888-10-23
Anticipated expiration: 1905-10-23

Description

(No Model.)

H. A. GRAY.

LASTING MACHINE.

No. 391,467. Patented Oct. 23, 1888.

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UNITED STATES PATEI ruins.

HIRAM A. GRAY, OF NEW HAVEN, CONNECTICUT, ASSIGNOR TO YVILLIAM S. KING, OF MINNEAPOLIS, MINNESOTA.

LASTlNG MACI-HNE.

SPECIFICATION forming part of Letters Patent No. 391,467, dated October 28,1888.

Application filed August 2, 1888. Serial No. 281,716. (No model.)

To aZZ whom, it may concern.-

Be it known that I, HIRAM A. GRAY, of New Haven, in the county of New Haven and State of Connecticut, have invented certain new and useful Improvements in Lasting-Machines, of which the following is a specification.

My invention relates to the jaws employed in lasting-machines to fold the edges of the upper over upon the last; and it consists in the combination therewith of a former arranged to bear upon the fingers or blades of the jaw and to bring them into conformity with the curvature of the last, the formers being removable and exchangeable, so that the same jaw may be quickly and accurately adjusted to suit different lasts. The former may be integral with the bar by which it is carried or removably 7 applied thereto, as preferred, and it may act upon the blades or fingers from above or below, as preferred, the first-mentioned arrangement being preferred.

In the drawings annexed, Figure 1 is a perspective view of a lasting-machine jaw pro vided with my improved former, which in this figure is represented as being detachable from the bar by which it is pressed and held down upon the blades or fingers; Fig. 2, an inner face view of the same; Fig. 3, a perspective view of the former made integral with the bar.

In the practical use of machines of this class it has hitherto been customary to provide a separate pair of jaws for each last, thus involving great expense and considerable loss of time in adjusting the jaws in changing from one last to another.

My invention is designed to obviate the necessity of multiplying the jaws and to facilirate adaptation of the machine to different lastsan object which I attain by the employment of yielding fingers or blades and interchangeable formers to bear upon said fingers or blades and bring their ends to the required outline.

In the drawings, A is the stock or body of the jaw, which will be applied to the machine in any usual or convenient manner, it being customary to employ such jaws in pairs, one

to act at the right and the other at the lefthand side of the last. The construction being the same for each and regardlessof the man ner in which the jaws are mounted or actuated, the following description will be confined to the one jaw illustrated, though applicable to both.

E indicates a series of yielding fingers or blades, which, when the jaw is in use, act upon the edge of the upper and fold it over upon the sole or insole upon the last, according to the class of work being performed. These blades or fingers are preferably hinged, as shown in the drawings, so that they may rise and fall at their outer ends; but they may be rigidly attached to the stock A and made sufficiently elastic to yield to pressure properly 6 applied.

Beneath each blade or finger B is a spring,

C, which springs are employed when the blades are hinged to hold them normally at their highest elevation, but which may he placed above instead of below the fingers, other parts of the device being likewise transposed.

D indicates a bar, one end of which is pivotally attached to the stock A, and the other end of which is furnished with a fastening device by which it may be firmly locked to the stock A, so as to maintain the bar in fixed relation to the stock A.

In Fig. 1 the bar D is represented as formed with aslot, a, in its lower side to receive a removable former, E, the lower edge of which is fashioned to correspond to the curvature of the sole of the last and to the desired line of the blades or fingers, the bar being in said figure represented as perforated at one end and attached to the stock A by a bolt or screw, b,passing through saidperforation and through or into lugs c of the stock. The fastening device at the other end of bar D is represented in the form of a swinging bail or yoke, F, adapted to swing over a projecting lug or stud, d, on the end of stock A, and provided with a thumb-screw, G, by which the bar may be drawn down and the former E be made to depress the fingers or blades B to a greater or less extent, as required.

\Vhen it is desired to change the last, and consequently to vary the adjustment of the blades or fingers, it is only necessary to unlock the end of bar D, raise it, remove the former 10c E, and relace it by another corresponding in form to the newly-applied last.

It is obvious that any common locking device-as, for instance, a simple hook, a springcatch, or a screw-may be employed to lock down the end of bar D.

If preferred, the former E may be made integral with bar D, as illustrated in Fig. 3, and in such case the entire bar will be removed and replaced by another when a change of former is desired. To facilitate such exchange, I prefer to make the pivotal end of the bar in the form of a hook, as shown in Fig. 3, so that it may be readily engaged with or disengaged from the bolt b. This construction may obviously be adopted whether the former be sepa rate from or integral with the bar. It will also be apparent that the former may be below and the springs above the fingers; but as this involves merely a reversal of the jaw as a whole, it is needless to further describe such variation.

Having thus described my invention, what I claim is 1. In alasting-machinejaw, the combination of a stock or body, a series of yielding blades or fingers carried thereby, and a removable former secured to the stock and arranged to bear upon the blades or fingers, substantially as set forth.

2. Inalasting-machine jaw, the combination of a stock or body, a series of yielding fingers or blades carried by said stock or body, a former bearing upon the fingers, and a bar or support for said former capable of being opened away from the stock or body to permit the removal of one former and the substitution of another.

3. In combination with a stock or body, A, yielding blades or fingers B, bar D, and former E, carried by said bar and arranged to rest upon the blades or fingers B.

4. In combination with stock A and yielding fingers B, bar D, provided with slot a, and former E, seated in said slot and adapted to bear upon the fingers B.

5. In a jaw for lasting-machines, the combination of stock or body A, provided with lug d, yielding fingers B, and bar D, provided with former E and with swinging yoke F.

6. The herein-described lasting-jaw,consisting of stock orbody A, having lug d, yielding fingers or blades B, springs 0, bar D, former E, yoke F, pivotally attached to bar D, and screw G, carried by said yoke, said parts be ing combined and arranged to operate substantially as set forth.

,In witness whereof I hereunto set my hand in the presence of two witnesses.

HIBAM A. GRAY.

Witnesses:

GEORGE TERRY, CHAS. F. MOOABE.