US 2728919 A
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Description (OCR text may contain errors)
H. G. BOOTH TRIMMING TAPE Jan. 3, 1956 Filed July 21. 1952 ATTORNEYS United States Patent TRIMMING TAPE Herbert G. Booth, Harrison, N. Y., assignor to David Traum Company, Inc., a corporation of New York Application July 21, 1952, Serial No. 300,043
2 Claims. (Cl. 2278) The present invention is concerned with rick rack tape,
the trade name for a trimming tape of sinusoidal conformation, commonly applied to ladies dresses, coats and aprons, slip covers, curtains, draperies and the like:
Since the capital investment for purchase and the maintenance expense of narrow gauge textile machinery is a material factor in the production cost of rick rack tape, bearing in mind the slow rate of production for individually weaving or otherwise individually forming each narrow gauge tape, it is among the objects of the invention to provide a new rick rack tape which serves quite as effectively for trimming as does conventional rick rack tape but may be made speedily and at low cost from wide gauge piece goods by resort to inexpensive equipment economical to maintain and may be readily and securely applied to a dress, coat, apron, slip cover, curtain, drapery, or other article without the need for stitching.
In the accompanying drawings in which is shown one of various possible embodiments of the several features of the invention,
Fig. 1 is a perspective view on a greatly enlarged scale showing the front and rear face of a section of rick rack trimming tape embodying the invention, and
Fig. 2 is a perspective view illustrating the mode of manufacture of the tape.
Referring now to the drawings, the tape of the pres, ent invention involves a median and straight section M of textile, preferably of woven fabric including warp strands 10, the full length of the tape with interwoven weft strands 11.
Projecting from both lateral edges of the median section M are the humps H or sinusoidal conformation that make up the edge or margin of the tape. These humps as shown are made of short strands 12 of warp interwoven with short continuations 11' of the weft strands 11 of the median section M.
One face of the rick rack strip is coated as at 13 with any conventional thermoplastic, heat-fusible adhesive of type unaffected by dry cleaning or laundering compositions or procedures, which adhesive is normally dry and untacky. That adhesive performs the triple function of (1) bonding into a unitary structure the short lengths of warp 12 and weft strands 11 that make up the sinus oidal conformation of the tape, (2) end sealing the sinus} oidal edges of the tape and precluding fraying, and (3') of attaching the rick rack tape to the garment or other fabric that it trims.
The rick rack trimming tape of the present invention is generally wound in the form of a hank about a flat mandrel (not shown) desirably of cardboard, for sale at retail in individual packages, or it could be wound on a roll or reel (not shown) for use by the manufacturer in trimming garments and fabrics.
The trimming is applied to the garment or fabric by simply laying it flat in the appropriate place and passing a hot sad-iron thereover, which causes the thermoplastic adhesive to flow and upon cooling to bond the trimming in place, where it remains securely, without coming loose in either dry cleaning or laundering.
Thus as compared to rick rack tape of the type known as rick rack braid, the tape of the present invention is economical both in cost of manufacture and in cost and ease of application.
While the rick rack tape of the present invention could be fabricated from piece goods, preferably from bolts of woven cotton, rayon, nylon and the like in any of a number of possible ways, there is shown in Fig. 2 one preferred equipment for the purpose.
The entire area of one face of the piece goods is coated with the thermoplastic adhesive 13 of the type above noted which is dry to the touch at ordinary temperatures. The piece goods is then simply passed between two rollers, comprising a backing roller or platen 14 with a yielding covering 14' of rubber, linoleum or the like and a coacting cutting roller 15. The cutting roller is assembled from a sequence of carrier disks 16 clamped together by suitable means (not shown). Each disk 16 has a cutter blade 17 protruding therefrom uniformly about its entire periphery, each cutter being of sinusoidal form as shown, the cutters of consecutive disks defining the sinusoidal outline of the two edges of a piece of rick rack tape therebetween. Thus by passing the length or bolt of piece goods between rollers 14 and 15, one of which is driven, the piece goods is cut without waste into corresponding lengths of rick rack tape that are taken up on a reel (not shown) and are of the character and have the advantages above set forth.
As many changes could be made in the above trimming tape and the method and equipment for fabricating the same, without departing from the scope of the claims, it is intended that all matter contained in the above description or shown in the accompanying drawings 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 of the United States is:
1. As an article of manufacture, rick rack trimming tape, the lateral edges of which have sinusoidal conformations, said tape being of textile fabric having continuous longitudinal strands extending the entire length thereof and short lengths of strands constituting the sinusoidal conformations, said length of tape having a thermoplastic heat-fusible adhesive of type resistant to dry cleaning and laundering operations, which adhesive coats one face of the tape and bonds the short lengths of strands against fraying.
2. As an article of manufacture, rick rack trimming tape of woven textile, the lateral edges of which have sinusoidal conformations, said tape comprising a median section of warp strands extending the full length of said tape and weft strands thereacross, protruding laterally from both edges of the median section and interwoven short length of warp strands and defining the sinusoidal conformations, and a thermoplastic heat-fusible adhesive coating one face of the tape and bonding against fraying, both prior to and in use, the short lengths of woven weft and warp that define the sinusoidal conformations of the tape.
References Cited in the file of this patent UNITED STATES PATENTS 104,442 Garrick June 21, 1870 157,815 Hall Dec. 15, 1874 204,626 Simon June 4, 1878 1,190,091 Berlin July 4, 1916 2,508,855 Brown May 23, 1950 2,533,891 McClintock Dec. 12, 1950 2,576,933 Geimer et a1 Dec. 4, 1951 2,584,074 Wilkins Jan. 29, 1952