US416695A - Jacob j - Google Patents

Description

(No Model.) J. J. UNBEHEND.

CLASP PLATE.

No. 415,695. Patented Dec. 3, '1889.

INVENTUH UNITED STATES JACOB J. UNBEl-IEND, OF SYRACUSE, NEV YORK, ASSIGNOR TO THE JUDSON l i `PATENT OEEICE.

L. THOMSON MANUFACTURING COMPANY, OF SAME PLACE.`

CLASP-PLATE.

SPECIFICATION forming part of Letters Patent No. 416,695, dated December 3 1889*.

Application led October 4, 1888.

.To all whom it nur/y concern,.-

Be it known that l, JACOB J UNBEHEND, of Syracuse, in thev county of Onondaga, in the State of New York, have invented new and useful Improvement-s in Clasp-Plates, of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact description. i

My invention relates to improvements in the class of clasp-plates which are employed 1n connection with spring-clasp fasteners for use upon arctic overshoesl and like devices;

and it has for its object the production of a clasp or take-up plate which shall not only be simple to manufacture, but so constructed as to afford a rigid device not liable to bend or break, and at the same time to be light and easy-fitting upon the foot in use; and to this end my invention consists, essentially, of a clasp or take-up plate struck up out of sheet metal, having its side edges corrugatedand crimped and provided with transverse slots.

It consists, furthermore, in making the takeup plate concavely curved crosswise thereof between the side bars of the plate, all as hereinafter morefully described, and pointed out in the claims.

In specifying my invention reference is had to the accompanying drawings, forming a part of this speciiication, in which like letters indicate corresponding parts in all the views.

Figure l is a top plan View of my improved clasp plate, illustrating the preferred construction thereof. Fig. '2 is a like view of a modified construction slightly enlarged, the crimp of the metal being reversed from that shown in Fig. 1. Fig. 3 is a like view of a further modification, in which the'side bars or edges of the take-'up plate are slightly different in form from those shown in Fig. 2. Fig. 4 is an isometric view of my preferred construction, taken from an end of the plate and illustrating the contour transversely. Fig. 5 is a like view of the construction illustrated in Fig. 2, and Fig. G is a like View of the construction illustrated in Fig. 3.

A represents my improved clasp or take-up y plate, struck up of thin sheet metal and hav- Serial No. 287,234. (Normodel.)

of my invention, which is illustrated in Figs. l and 4t, the take-up plate A is curved longitudinally to coincide with the contour of the instep of Athe human foot and the transverse bars b b', which are concavely curved cross- 55 wise of theplate. The side edges a are corrugated and form the highest pointsof the concaval curve of the plate, and the edges a are crimped under, serving to strengthen and stitfen the plate against bending when the 6o device is in its operative position on the quarter of an arctic or like overshoe. 4

It will be observed that crimping the edges of the side bars a re-enforces the side edges a', and at the same time affords a curved bear- 65 ing for the plate to rest on when the device is applied to the foot of the wearer.

By reference to the drawings it will be seen that the curved bearing of the take-up plate is preferably the lowest point of the plate, or 7o the point bearing upon the foot of the wearer, andas the same is rounded there is no liability of pinching or hurting the foot.

Heretofore much difficulty has been eXpev rienced in providing the requisite rigidity 75 l and stiffness in take-up plates of this character, since these plates are subjected to considerable strain by the movement of the foot in walking, and they were very liable to bend;

or if the material was brittlerthey were very 8o the rounded surface bearing upon the foot. The peculiar bending of the transverse bars, 8 5

so as to present a concave appearance cross" wise of the plate, together with the crimped edges of the side bars a, imparts the requisite stiffness, and the aforesaid difliculties are entirely obviated and overcome thereby. 9o Moreover, this construction permits the use of very light metal, which is much easier to manipulate in the dies employed in stamping out the device, and by forming the crimped edges a of the sidebars a to the 95 contour of the foot a rounded surface is presented, Which makes the plate rest easily on the foot of the wearer without any liability o f pinching or hurting the foot. As heretofore stated, Figs. 1 and 4 represent my preferred construction ofthe improved clasp-plate; but I do not restrict my invention to this specific form, since the plate may be made as shown in Figs. 2 and 5, or as shown in Figs 3 and (i.

The construction illustrated in Fig. 2 is substantially the same, so far as concaving the device crosswise, as that illustrated in Fig. l, but it differs in the crimping of the side bars a. l

It will be noted upon referencev to Fig. 5 that the side bars a are bent down at I, then bent angularly at 2, and the edge a crimped `down over the angular bend 2, tlius elevating the transverse bars somewhat above the plane of the bend 2. This construction is particularly applicable to the larger size of takeup plates and is exceedingly strong and durable.

rIhe construction illustrated in Figs. 3 and 6 is substantially the same as that shown in Figs. l and 4, differing solely in the fact that the edges a are crimped over the side bars a instead of underneath, as shown in the preferred example of my device. In this construction, however, the take-up plate rests upon the reversely-curved plate instead of upon the edges thereof.

A special feature of advantage in concaving the transverse -bars crosswise of the takeup plate rests in the fact that the springclasp tongue draws the plate down snugly to the foot, thereby affording abetter hold thereon than in the other forms of take-up plate heretofore employed.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. In a fastening-device, a clasp or take-up plate having its transverse bars concavely curved crosswise of the plate, substantially as and for the purpose set forth.

2. In a fastening device, a clasp or take-up plate having its transverse bars concavely curved crosswise of the plate and its side bars crimped or bent back on themselves, substantially as and for the purpose set forth.

3. In a fastening device, the hereindescribed take-up plate, having its transverse bars concavely curved crosswise of the plate and having the metal of its side bars bent in a rounded curve, forming a rounded bearing for the plate, substantially as and for the purpose set forth.

In testimony whereof I have hereunto signed my naine, in the presence of two attestin g witnesses, at Syracuse, in the county of Onondaga, in the State of New York, this 24th day of September, 1888.

JACOB J. UNBEHEND.

VitneSses:

A. E. PARSONS, E. A. WEISBURG.

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