US1458487A - Fastener for metal clips - Google Patents

Description

June 12, 1923. 1,458,487

M. KRISCHER ET AL FASTENER FOR METAL CLIPS Filed May 15 1922 INVENTORS ATTORNEY Patented June 12, 1923.

UNITED STATES MAX KRISCHER AND CHARLES ROSENBLUM,OF BRiQOKLYN,qNEW YORK.

FASTENEB] roe METAL on rs.

Application filed May 15, 1922. Serial No, 561,119.

To (ZZZ whom it may] concern:

Be it known that we, MAX Kaiser-Inn and CHARLES ROSENBLUM, both citizens of the United States, residing at New-York city, borough of Brooklyn, in the county of Kings and State of New York, have invented certain new and. useful Improvements in Fasteners for Metal Clips, of which "the following is a specification.

This invention relates to clips of fastening devices such as are commonly made of bendable sheet metal or other material andattached to flexible supporting bodies, such as leather, fabric, or other articles of manu facture, either lined or unlined. the fastening in the old practice usually being performed by use of staples, rivets, screws, or the like, such usual fastening means being expensive both as to material and time of operation, as well as being more or less unsightly and liable to cause the catching of the garments of the persons handling or carrying the articles.

Among the objects of the invention is to provide a means for fastening a metal clip or the like to a support, the fastening means being so designed as to present an unusually pleasing and attractive appearance; one that may be performed with the least possible amount and weight of material of which the clip is made; one that may be made and applied with the least possible amount of expense as to time of operation and moreover one that possesses maximum strength or holding power.

Vith the foregoing and other objects in view the invention consists in the arrangement and combination of parts hereinafter described and claimed. and while the in vention is not restricted to the exact details of construction disclosed or suggested herein, still for the purpose of illustrating a practical embodiment thereof reference is had to the accompanying drawings, in which like reference characters designate the same parts in the several views, and in which- Figure 1 is a plan view of one embodiment of the intention exemplifying a sheet metal clip.

Fig. 2 is a longitudinal section of the same on the line 22.

Fig. 3 is a cross sectional line 33 of Fig. 1.

Fig. 4 is a detail view of the clip before attachment.

detail on the In that form of the invention shown the. supporting body 10 may be understood as being composed of leather'or fabric of either single ply or laminated construction, such for example as an edge portion of a suit case, brief bag, musical instrument case, or the like. p

The clip 11 is of any suitable size or con figuration, but shown herein as of u shape in cross 'SGCUOIII where 1t emb aces the edge portion of the support. In flat form the clip is practically rectangularand while of such form is subjected to t he action of a tool which forms therefrom a plurality of pairs of prongs 12, preferably of triangular form and long enough to more than project through the support 10 when attached thereto. The prongs of each pair are so disposed with relation to each other that the bases of the triangles, the sides along which the prongs are attached as an integral part of the main body of the sheet of metal, are opposite each other and with the apexcs or points of the prongs extended toward each other. Thus each pair of prongs will grip or embrace around a poi'tioirltl of the support and so positively hold the same from, relative movement in any direction. It will. be observed also in this connection that since the strainon the clip tending to separate it from the support is ordinarily in the direction of the edge of the support, the. prongs are so disposed as to have the greatest possible strength resisting such tendency because such strain is received by the prongs in the direction where the inherent strength is the greatest. It will be noted also that with the prongs thus stamped directly out of the body of the clip 1]. no waste of material results, and with the arrangement thereof in pairs with their bases opposite each other a very attractive design is produced lVithout beingunneccssarily restricted as to the number of pairs of prongs or as to their relative arrangement, we have found in practice that usually the best form is that indicated, in whicn two pairs are formed from one side of the clip adjacent to the respective corners thereof, while another pair is formed from the opposite side of the clip and relatively between the first two pairs. In this connection it is to be observed that, depending upon the strength and firinness'of the support as aholding body, a double gripping or fastening efiect is accomplished by the fact that the pairs of prongs enter and pass through the support from opposite sides thereof. That is to say, the prongs from one side, gripping the body or support, prevent such side ofthe clip from being separated from the support, while the prongs from the other side of the clip, likewise gripping the support, prevent the separation of said other side from the support, and thus the fasten ing is complete and effective even though the material from-which the clip is made may .be of unusually thin and relatively pliable stock.

Vith the clip designed in size and length of prongs consistent with the thickness of the support it will be noted that when the prongs carried by either side of'the clip are plunged or forced through the support the points thereof will impinge against the,

inner surface of the opposite side of the clip, causing thereby directly the bending or clinching ot the prongs against said opposlte vside and com )elling the armi s of each ')1l1' to grasp around'or embrace a portion 10 of the body.

WVe claim:

A clip of sheet metal and of U-shape in cross section and having two flat side portions bendable toward each other on the opposite sides of a support, one side portion having stamped therefrom a pair of triangular prongs having sharp points projacent pair of prongs.

In testimony whereof we afiix our signatures.

MAX KRISCHER. CHARLES ROSENBLITM.

enforced by the grip thereon of the next ad-

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