US2219045A - Slide fastener separable stop and method of making the same - Google Patents

Description

Oct. 22, 1940. 2,219,045

SLIDE FASTENER SEPARABLE STOP AND METHOD OF MAKING THE SAME M. KIESSLING Filed Dec. 5, 1958 2 Sheets-Sheet l INVENTOR fiaxltiemling.

ATTORNEY Oct. 22, 1940. M KlESSLlNG 2,219,045

SLIDE FASTENER SEPARABLE STOP AND METHOD OF MAKING THE SAME Filed Dec. 5, 1938 2 Sheets-Sheet 2 INVENTOR Max hii'essling.

BY gg mm'a ATTORNEY I Patented Oct. 22, 1940 SLIDE FASTENER SEPARABLE STOP AND METHOD OF MAKING SAME Max Kiessling, Waterbury, Conn.

Application December 5, 1938, Serial No. 243,957

2 Claims.

This invention relates to improvements in twopart separable stops for use in detachably holding the ends of a pair of slide fastener tapes together,

and in the method of making the same.

In the use of slide fastener tapes of the above type having rows of cooperating fastener elements along the opposing edges of the tapes, it has been found that detachable stops for the slide member are required at the lower end of the tapes, and that these stops should be narrow in width so that they will not interfere with the stitching of the tapes upon the adjoining fabrics.

One object of this invention is to provide a two-part stop of the above nature consisting of a pair of cooperating male and female members, each of which is made from blanksformed from single pieces of sheet metal, said members being provided with means to readily apply and secure them compactly upon the edges of a pair of tapes.

Still another object is to provide a method of making a two-part stop of the above nature whereby the ends of the tapes will be closely and neatly fitted together in an easy and positive 5 manner.

A further object is to provide improved methods of making both of the male and female members of the detachable stop.

A still further object is to provide an improved form of detachable two-part stop of the above nature which will be simple in construction, inexpensive to manufacture, easy to manipulate, compact, ornamental in appearance, and very efficient and durable in use.

With these and other objects in view, there have been illustrated on the accompanying drawings two forms in which the invention may be conveniently embodied in practice.

In the drawings:

Fig. 1 illustrates a pair of interlocking fastener element-holding tapes and associated fabric, said tapes having the male and female members of the improved detachable two-part stop assembled theretoat the lower ends thereof.

Fig. 2 is an enlarged front view of the lower ends of the tapes, showing in full lines the stop parts in assembled position, and in dotted lines the separated position of the male member.

Fig. 3 is a bottom edge view of the parts shown Fig. 2. Fig. 4 is a plan view of the blank from which the male member of the stop is constructed. Figs. 5; and 6 are views showing the appearance 'rof the blank after two successive steps in the 55 method of making the male'stop member.

Fig. 7 is a plan view of the blank from which the female member is formed.

Figs. 8 to 12 inclusive are views showing the appearance of the blank after the successive steps in the method of making the female part of the stop, the views in Figs. 11 and 12 being taken looking in the direction of the arrows II and I2 respectively in Fig. 10.

Figs. 13 and 14 are views showing the appearance of a modified form of blank and the completed male member made therefrom.

Referring now to the drawings in which like reference numerals denote corresponding parts throughout the several views, a pair of beaded fastener element tapes I9 and H are each provided with a row of cooperating elements 12' adapted to be interlocked in the well-known manner by a cam slide l3, when it is pulled in an upward direction, as viewed in Fig. l, by a hanging finger piece M. The elements l2 are adapted to be disengaged when the slide i3 is moved downwardly along the tapes Ill' and II in the reverse direction. The tapes l0 and II are each stitched to the adjacent edges l5 and 16 of two sheets of fabric I I, the lines of stitches being indicatedat l8 and I 9 respectively of Fig. 1.

The tapes l0 and H are detachably connected together at their lower ends by the two-part stop of the present invention, which comprises a male member 20 secured on the tape H, and a female member 2|, secured on the opposite tape Ill. The stop members 20 and 2i are each preferably made of a single piece of sheet metal, and are adapted to be readily interfitted, as shown by the full lines in Fig. 2, and to be disengaged, as shown by the dotted lines in said figure whenever the slide l3 has been pushed downwardly to its lowermost position adjacent the lower ends of the tapes l0 and I I. When the parts are in this condition, the male part 20 may be readily slipped upwardly through the slide I3 to disengage it from thefemale part 2|.

Male stop member The male stop member 20 is tubular in form and has a closed semi-spherical lower end 22. The member 20 is slightly curved outwardly at the upper part to facilitate its passage through the slide I3. The male member 20 is split, as at 23, along its entire length and is provided with 0 two rows of staggered opposing teeth 24 and 25 formed in the opposite abutting edges at the split portion 23, said teeth extending more than half way down from the upper end 26 of said male part toward the bottom.thereof and serving to tween. The upper end 26 of the male member 20 abuts against the lowermost element l2 on the tape I I to brace it against dislocation thereon.

Female stop member The female stop part 2| comprises a tubular upper portion 21 which is split its entire length, providing opposed side wings 28 which are adapted to embrace the beaded edge of the tape l0 opposite from the tape bead embraced by the male part 20. The tubular portion 21 has a pair of lips 29 and 30 provided upon its upper end to engage the lowermost element |2 on the tape H) for bracing it against dislocation thereon. The portion 21 is adapted to enter the slide l3 permitting the latter to move freely thereover.

The female stop member 2| is also provided with an intermediate socket portion 3|- extending away from the tubular portion 21, and disposed below the same. The socket portion 3| is provided with a relatively wide slot 3|a which is adapted to embrace the edge of the tape II.

In order to limit the downward movement of the male stop member 20 into the socket 3|, lips 33 and 34 are formed, one on each edge of the split section 32 at the lower end of the portion 3|, said lips being arranged in abutting relation below the tape end, whereby the lowermost elements |2'on the tapes l0 and U will be positively located in accurate alinement with each other so as to be readily interlocked by the upward movement of the slide l3. The upper end of the socket 3| acts as a stop for the slide l3 to prevent it being inadvertently removed from the tape Ill.

The female member 2| is also provided with a pair of transverse opposing wings 35 and 36 adapted to clamp about the lower flat portion of the tape ||l outside of the bead to securely hold the female part 2| thereto. The wings 35 and 36 are connected to the intermediate tubular portion 3| by a short downwardly convex curved link 31. In order to more securely hold the wings- 35 and 36 upon the tape In, said wings are provided upon their upper edges with opposed raised points 38.

Method of making the male stop member The male member 20 is made from sheet metal by first stamping a fiat blank from a strip of metal, as shown in Fig. 4, said blank having and 25 of the blank, and said edges are then pressed together to cause the teeth 24 and 25 to enter the tape II, the lips 39 being at the same time forced into engagement to form the semispherical end 22 (see Fig. 6).

Method of making the female stop member In making the female stop member 2|, a blank is first stamped from sheet metal, as shown in Fig. 7. The next step of the method is to bend the upper portion 21 and the intermediate socket portion 3| in opposite directions by suitable forming tools and dies'mot shown) into th partgrip the bead of the tape tightly therebely tubular form shown in Fig. 8. At the next, or

third operation, the intermediate portion 3| is completely formed into a socket, the lips 33 and 34 being pressed together into abutment, as-

shown in Fig. 9.

The next, or fourth, operation includes bending the bottom link 31 horizontally to move the tape-clamping wings 35 and 36 through so that the base thereof will lie perpendicular to the tubular socket 3|. The female stop member is then in condition to be assembled to the tape ID by clamping the sides of the upper portion 21 upon the bead of said tape and the transverse wings 35 and 36 upon the fiat portion of said tape, the points 38 being thus caused to penetrate the tape to hold it securely therebetween.

In the modified form of male stop member 40 shown in Fig. 13, two rows of raised points 4| are provided on its opposite side edges in staggered relation, so that'when the member 40 is formed into a tube embracing the edge of the tape H, the tongues AI will penetrate the material of the tape.

Operation In operation, the male and female members 20 and 2| of the two-part stop of this invention are applied to the respective ends of the pair of separate beaded tapes I0 and H after the rows of fastener elements |2 have been first assembled thereto. The camming slide l3 will then he slipped over the elements |2 on the tape Ill and moved downwardly as far as it will go, or until it engages the socket 3| as shown in dotted lines in Fig. 2. The male member 20 will then be slipped downwardly through the slide l3 and into the socket 3| as far it will go, as shown in full lines inFig. 2, thus securing the tape ends together with the rows of elements |2 in alinement. The slide |3 may then be moved upwardly to interlock the elements I! in the usual manner and secure the adjacent edges of the tapes l0 and I together thereby connecting the inner edges l5 and I6 of the fabric One advantage of this invention is that sufficient room is left at each side of the assembled stop members on the tapes to permit the tapes to be secured to a piece of fabric by uninterrupted lines of stitches close to the rows of elements.

While there have been disclosed in this specification two forms in which the invention may be embodied and the preferred methods of making the same, it is to be understood that these forms and methods are shown and described for the purpose of illustration only, and that the invention is not to be limited to the specific disclosure, but may be modified and embodied in various other forms without departing from its spirit. In short, the invention includes all the modifications and embodiments coming within the scope of the following claims.

Having thus fully described the invention, what is claimed as new, and for which it is desired to secure Letters Patent, is:

1. In a separable two-part end stop for de- 'tachably holding the lower ends of a pair of prongs at its lower end pressed into semi-spherical shape, and having staggered opposed bead- 'engaging teeth along the upper part of its split edges, the lower ends of said split edges being devoid of teeth, said male member extending below the associated stringer for insertion into the socket of said female member.

2. In a separable two-part end stop for detachably holding the lower ends of a pair of beaded slide fastener stringers, each of which stringers is provided with a row of cooperating fastener elements, which rows are adapted to be ,detachably interlocked by means of a slider member, said end stop comprising a. cooperating onedevoid of teeth, lying in abutment and extending 1 below the associated stringer for insertion into the socket of said female member.

MAX KIESSLING;

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