US2890145A

US2890145A - Carpet seaming tape

Info

Publication number: US2890145A
Authority: US
Inventors: Kenneth B Milnes
Original assignee: Individual
Current assignee: Individual
Priority date: 1958-08-19
Filing date: 1958-08-19
Publication date: 1959-06-09
Anticipated expiration: 1976-06-09

Description

June 9, 1959 A K. B. MILNEs '2,890,145

` CARPET SEAMING TAPE Filed Aug. 19, 195e ATTORNEY United States Patent Office Patented June 9, 1959 lCARPET SEAMING TAPE Kenneth B. Milnes, Meadowbrook, Pa.

Application August 19, 1958, Serial No. 756,040

4 IClaims. (Cl. 154-49) This invention relates to carpet seaming tape and more particularly to a tape for joining the edges of pile carpeting to provide a seamless appearance on the upper face.

Various tapes and the like have heretofore been proposed for joining the edges of pile carpeting from below, but none of these has proven wholly satisfactory. With certain of the prior seaming tapes, the floor beneath the tape was damaged or scored or had objectionable deposits of adhesive thereon. With other prior seaming tapes there was insuilicient absorption of or adherence of the adhesive to the carpeting and to the tape so that a strong joint was not provided. With other prior seaming tapes an excessive time was required for drying of the adhesive applied between the tape and the carpeting.

It is the principal object of the present invention to provide a carpet seaming tape capable of rapid production on available equipment and which is free from the objectionable features of prior carpet joining tapes.

It is a further object of the present invention to provide a carpet seaming tape having the components thereof assembled in an improved manner.

lt is a further object of the present invention to provide a carpet seaming tape which can be employed for direct mounting of the edges of the carpet thereon and without the necessity for turning the carpet over after joining the edges.

Other objects and advantageous features of the invention will be apparent from the description and claims.

The nature and characteristic features of the invention will be more readily understood from the following description, taken in connection with the accompanying drawings forming part thereof, in which:

Figure 1 is a top plan view of a piece of the carpet seaming tape in accordance with the invention showing the mode of use thereof;

Fig. 2 is a rear elevational view of the carpet seaming tape shown in Fig. l;

Fig. 3 is a view in perspective of one of the cleats employed on the tape; and

Fig. 4 is a longitudinal central sectional View of the cleat shown in Fig. 3.

It should, of course, be understood that the description and drawings herein are illustrative merely, and that various modifications and changes may be made in the structure disclosed without departing from the spirit of the invention.

Like numerals refer to like parts throughout the several views.

Referring now more particularly to the drawings, two strips of floor covering and 11 of woven pile fabric are shown, having edges 12 and 13 which are to be held in assembled relation on a floor.

The tape in accordance with the present invention is shown generally at 15, the strips 10 and 11 being in substantially equally overlapped relation thereto upon the completion of the seaming.

The tape 15 preferably includes an elongated backing strip 16 of paper, kraft paper transversely creped, being preferred because of its elasticity along the longitudinal axis. Creped kraft paper of a weight of the order of 45 pounds per ream has been found suitable.

The strip 16 can be of any desired width, one specific embodiment being of a width of the order of four inches.

A warp knit fabric is provided preferably having a central line of chain stitches 17, and spaced parallel inner and outer lines of

chain stitches

18 and 19 on each side thereof. The chain stitches 17 are preferably of contrasting color, such as black, with respect to the lines of

chain stitches

18 and 19, which can be white in color, so that the central line 17 can serve as a gauge line for application of the carpet strips 10 and 11.

The yarns from which the lines of

chain stitches

17, 18 and 19 are made can be of nylon, rayon or other twisted fibrous material yarns of about 600 denier having been found satisfactory.

Filling strands 20, transversely disposed on the upper face of the paper strip 16 are incorporated into and bound by the lines of

chain stitches

17, 18 and 19 in the warp knitting operation, and may be of any desired material, and are preferably of rayon, although berglass, cotton, or jute can be employed. The lling strand 20 can be of zero twist to enhance absorption, and two strand per stitch 1650 denier yarns have been found suitable. Yarns of 1150 denier have also been found to produce a satisfactory result.

It will be noted that the lines of

chain stitches

17, 18, and 19 extend through the paper backing strip 16 in engagement therewith, so as to be visible on the back or lower face of the strip 16, the paper strip 16 being supplied to the warp knitting apparatus so that the lines of

stitches

17, 18 and 19 hold the lling strands 20 in firm engagement with the strip 16.

At spaced intervals along the outer face of the filling strand 20, cleats 21 are provided, preferably of thin resilient sheet metal. The cleats 21 have body portions 22 of a length of the order of two and one half inches, or slightly more than the distance between the outer lines of chain stitches 19 and are provided along their side marginal edges 23 with struck up points 24. The points 24 along one side edge 23 can face or be inclined slightly in one longitudinal direction while the points 24 along the opposite side edge 23 can face or be slightly inclined in the opposite longitudinal direction.

The body portions 22 have struck downwardly therefrom, preferably at locations corresponding to the central line of stitches 17 and the outer lines of stitches 19, gripping

tongues

25 and 26, which extend downwardly through the strip 16 and under and in holding engagement with the portions of the lines of stitches 17 and 19 which are exposed on the back or under face of the strip 16. The terminal ends of the tongues 25 are disposed upwardly or away from the under or lower face of the strip 16 so as not to project in scratching engagement with the oor.

In use, the seaming tape 15 constructed as described, is placed with its lower face or back on the Hoor at the location where the edges 12 and 13 of the strips 10 and 11 are to be secured together.

A suitable adhesive, which can have a base of rubber, natural or synthetic, in a suitable evaporative solvent is applied as a band to the upper face of the tape 15 in the area between the outer lines of stitches 19, and the carpet strips 10 and 11 are applied thereon with their edges 12 and 13 in meeting relation. The points 24 will engage in the pile fabric from below and aid in preventing separation of the edges 12 and 13, or creeping of the tape 15 during drying of the adhesive and subsequently.

With the construction described, ample absorptive area for the adhesive is provided on the upper face of the tape 15 with tendency to deposit adhesive onto the oor being minimized. The cleats 21, in firmly gripped engagement with the strip 16, do not have any portions which would tend to scratch or mar the floor While at the same time an eiective grip on the pile fabric is effected by the upstanding points 24.

I claim:

1. A carpet seaming tape comprising an elongated paper strip, a plurality of spaced parallel longitudinally extending lines of chain stitches, a continuous transversely disposed filling yarn on the upper face of said strip, said lines of chain stitches being in holding engagement with said filling yarn and said paper strip, and a plurality of spaced transverse cleats overlying said filling and extending between the outermost lines of chain stitches, said cleats having body portions and a plurality of gripping tongues extending through said strip each in gripping engagement with one of said lines of stitches.

2. A carpet seaming tape comprising an elongated paper strip, a plurality of spaced parallel longitudinally extending lines of chain stitches, a continuous transversely disposed lling yarn on the upper face of said strip, said lines of chain stitches being in holding engagement with said iilling yarn and said paper strip, and a plurality of spaced transverse cleats overlying said iilling and extending between the outermost lines of chain stitches and in engagement with said paper strip, said cleats having body portions withiupstanding points and a plurality of gripping tongues extending through said strip each in gripping engagement with one of said lines of stitches.

3. A carpet seaming tape comprising an elongated transversely creped paper strip, a central longitudinal line and inner and outer parallel longitudinally extending lines of chain stitches, a continuous transversely disposed iilling yarn on the upper face of said strip, said lines of chain stitches being in holding engagement with said filling yarn and said paper strip, and a plurality of spaced transverse cleats overlying said filling and extending between the outermost lines of chain stitches and in engagement with said paper strip, said cleats having body portions with upstanding points and a plurality of gripping tongues extending through said strip, certain of said tongues being in gripping engagement with the central line of stitches.

4. A carpet seaming tape comprising an elongated transversely creped paper strip, a central longitudinal line and inner and outer spaced parallel longitudinally extending lines of chain stitches, `a continuous transversely disposed filling yarn on the upper face of said strip, said lines of chain stitches being in holding engagement with said iilling yarn and said paper strip, and a plurality of spaced transverse cleats overlying said filling and extending between the outermost lines of chain stitches, said cleats having body portions with upstanding points and a plurality of gripping tongues extending through said strip,` Certain of said tongues being in gripping engagement with the central line of stitches and others of said tongues being in gripping engagement with the outer lines of stitches.

References Cited in the iile of this patent UNITED STATES PATENTS 605,978 Shepherd .Tune 21, 1898 2,552,114 Reinhard May 8, 1951 2,727,295 Wright Dec. 20, 1955

Claims

1. A CARPET SEAMING TAPE COMPRISINGAN ELONGATED PAPER STRIP, A PLURALITY OF SPACED PARALLEL LONGITUDINALLY EXTENDING LINES OF CHAIN STITCHES, A CONTINUOUS TRANSVERSELY DISPOSED FILLING YARN ON THE UPPER FACE OF SAID STRIP, SAID LINES OF CHAIN STITCHES BEING IN HOLDING ENGAGEMENT WITH SAID FILLING YARN AND SAID PAPER STRIP, AND A PLURALITY OF SPACED TRANSVERSE CLEATS OVERLYING SAID FILLING AND EXTENDING BETWEEN THE OUTERMOST LINES OF CHAIN STITCHES, SAID CLEATS HAVING BODY PORTIONS AND A PLURALITY OF GRIPPING TONGUES EXTENDING THROUGH SAID STRIP EACH IN GRIPPING ENGAGEMENT WITH ONE OF SAID LINES OF STITCHES.