US2262633A - Method of attaching a staple carrying initial - Google Patents

Description

WAQN

INVENTOR LM @www BY (-Qa-M. n

M. CHERNOW original Filed Aprilzs, 1940l METHOD OF ATTACHING A STAPLE CARRYING INITIAI Nov. 11, 1941.

Patented Nov. 11, 1941 UNITED STATES PATENT OFFICE METHOD F ATTACHING A STAPLE CARRYING INITIAL Michael Chernow, New York, N. Y.

2 Claims.

The present invention is concerned with meth- V An object of the invention is to provide a method of application of such emblem which is especiallyr effective, expeditious and convenient and does not require the exercise of any particular skill.

Another object is to provide a method of the above character by which the application of the emblem to an article with a lining, such for instance as a lined handbag, is effected with inherent concealment of the clenched over prongs and without .penetration thereof through or injury to the lining.

Another object is to provide a simple, rugged and inexpensive tool by which the method referred to may be effectively carried out.

This application is a .division Vof rmy copending application Serial No. 331,565, filed April 25, 1940, and entitled Initial application and patented on July 2, 1940, as Patent No. 2,206,806.

In the accompanying drawing in which is shown one of various possible embodiments of the several features of the invention,

Fig. 1 is a .perspective view showing the initials appliedin place on .a handbag,

Fig. 2 is a transverse sectional view on a greatly enlarged scale taken on the line 2-2 of Fig. 1,

Fig. 3 is a rear plan view of one of the initials used,

Fig. 4 is a transverse sectional view taken on line 4-4 of Fig. 3,

Fig. 5 is an edge view of the initial unit,

Fig. 6 is a detail sectional view on a larger scale taken on line 6 6 of Fig. 4,

Fig. 7 is a transverse sectional View showing the clenching tool with the work in place, and

Fig. 8 is a View similar to Fig. 'I showing an intermediate stage in the clenching operation.

Referring now to the drawing, the bag I0 has mounted thereon one or more metal initials L which may be conventional in external appearance. Each initial carries on the back thereof a staple S of soft bendable metal, preferably a strip of hard brass or, if desired, of soft steel. The staple is permanently affixed to the initial preferably by soldering the base II thereto. The sides of the prongs I2 of the staple desirably converge at I3 to a point I4, and preferably the outer extremities of the prongs are turned outward slightly at I5. The junction between the prongs I2 and the base II are preferably not F.

sharply bent but extend in a rounded arc as at I6 on a substantial radius.

The individual staples are preferably produced by stamping with a die and the die engages the metal sheet stock at the surface corresponding to the inner surface of the staple, so. that, as a consequence, theledges at the 'inner surface of the out turned points I4, are rounded off as best shown at I1 in Fig. 6. The staples after being stamped out are desirably tumbled so that the surfaces thereof are rendered smooth, without burrs or sharp points, as best indicated in the drawing. Desirably the staple is so proportioned and positioned on the emblem, that the prongs thereof when flattened out substantially into the plane of the base, protrude slightly at their ends beyond `the respective edges of the emblem.

To apply to the handbag the initial or other emblem with the staple soldered to the underface thereof, a clenching tool such as shown in Figs. 7 and 8 is preferably employed. This tool includes a base 20 mounting a hardened metal anvil .2I with a smooth generally spherically curved convex surface 22. Thus the convex surface is devoid of any retaining notches or depressions but is continuously curved on each section therethrough. Cooperating with the anvil is a hammer or plunger provided with a shank 23 guided in a sleeve 24 and desirably urged to be retained in raised position by a coil spring 25 about the shank and reacting against the base of the handle knob 26, a rubber gasket 21 taking the shock of spring return. The hammer presents a flat impact face 28, which desirably is covered with a piece of sole leather 28a, secured thereto inany suitable manner, whichv serves to protect the leather or other fabric 29 against which it is to be struck, from becoming injured or indented by the impact and which also helps to dampen the noise incurred by metal to metal` impact.

To apply the emblem to a handbag or similar article of leather 29 or other fabric, which is equipped with a lining 30, the emblem is placed in desired position upon the leather and with slight thumb pressure, the points I 4 are caused to penetrate the surface. The bag is laid upon the anvil 2| of the clenching tool, With the points of the staple superposed over the convex anvil face 22. Thereupon, the handle is struck one or more blows, in which operation, as shown in Fig. 8, the points I4 of the staple protrude under the leather and by reason of their rounded out turned points I4 in cooperation with the camming action of the convex anvil face, these points are caused to spread outward along the lining and without penetrating the latter. At the end of the hammer movement or usually upon one or more repetitions thereof 'with the bag displaced to bring the prongs successively to the center of the anvil, the staple will have been completely clenched and the emblem will have been brought home into intimate Contact wit-h the surface of the handbag. As .indicated in Fig. 2, the prongs in their nal spread position extend obliquely at 3| at their roots through the thickness of the leather, the lengths of the prongs extending in intimate contact with the back of the leather 4and alongthe lining and the outwardly turned points I4 penetrate the leather slightly and may` clench it against the edge 32 of the initial L, which edge is slightly overlapped by the point of the prong and thereby enhances the security of attachment.

` By reason of thev curvature I6 at the roots of the prongs, the prongs flatten out in their clenched position as shown in Fig. 2, withoutinjuring the llining fabric as they frequently would, were the prongs to extend at a sharp angle relative to the base, in which case the clenching operation might produce a rigid upstanding shoulder near the rootof the prong, which under the impact of the hammer might leave an unsightly Worn area'at the corresponding portion of the lining. It will be understood that while the curva- Vture I6 is-desirable for the reasons pointed out, it is within the scope of the invention as dened in certain of the claims, to use staples the prongs of which merge at a sharp angle with the base.

Byreason of the conformation of the staples as set forth=and of the clenching tool, the staple thus reliably eiects a particularly secure and dependablehold of the emblem against the fabric, and in the clenching operation, the likelihood of other article between the anvil and hammer, it will be understood that the particular construction of clenching tool may be widely varied. The operating handle may, for instance, have a hinged mount, to depress the plunger by a camming action.

While ordinarily a suiciently secure mount of the initial or other emblem is effected with the use of but one staple for each unit, it will be understood, that depending upon the character of the emblem (as for instance for the initial W), more'than one staple could be used. In special cases, if desired, special staples with three or more prongs could be used as will be readily -un derstood.

As many changes could be made in the above method and apparatus and many` apparently widely different embodiments of this invention could be made without departing from the scope of the claims, it is intended that all matter contained in the above description or shown in the accompanying drawing shall be interpreted as illustrative and not in a limiting sense.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is: Y l 1. The method of afxing a staple carrying emblem unit to a structure of leather or the like, which method consists in superposing the emblem over the leather with the points of the staple slightly penetrating the leather,v pressing the the prongs or either `of them penetrating the y lining, or injuring the lining in any way is minimized.

In 'the application of the invention to articles that are not equipped with linings as for instance to brief cases, the invention affords facilities for readily and reliably clenching over the prongs and indenting them into the leather, so that no sharp points or edges protrude that are apt to injure the fingers.

While the base of the clenching tool is bolted vtoa counter or table and protrudes over the edge thereof, for facilityl of introducing the bag or emblem toward the leather against the reaction of a convex anvil structure whereby the prongs of the staple will be cammed outward under the leather, shifting the leather structure upon the anvil to bring the prongs successively over the top of the anvil, and striking each prong to cause .the same to dig into the leather.

2. The method of applying to an article of` fabric: an emblem having a staple which consists 'in preliminarily penetrating the outwardly turned points of the staple into the fabric, supporting the fabric upon a convex anvil, exerting downward pressure upon the emblem, thereby to cause prongs of the staple to be cammed outward under the fabric and then shifting the fabric to center the prongs successively over the convex anvil and striking each prong with the hammer to atten the same out and cause the points to penetrate the fabric.

MICHAEL CHERNOW.

Images