US2202627A - Curtain heading tape and the like - Google Patents

Description

' May 28, 1940.

G. F. FRENCH 2,202,627

' HEADING T Filed Dec. 12, 1938 i all M a Iliilllllllllllll a a lmwmm llllllllllllll IiHIllIiiil! l il'illlllliiiillfl F lllill l ll ungum HJEHIHHHH'W k1,....HHIEWWH Patented May 28, 1940 Y r UNITED STATES PATENT OFFICE CURTAIN HEADING TAPE AND THE LIKE George Frederick French, Manchester, England Application December 12, 1938, Serial No. 245,254

In Great Britain December 18, 1937 8 Claims. (01. 139-390) This invention refers to woven tape of the kind up motion is restarted, and the weaving of the having at intervals along its length hook-tubes tape proper continued where it left 01f, until the and adapted for use on curtains for suspension next hook-tube strap is reached, and so, continupurposes, or for use with tent closures, or seat ally. Owing to the frequent stoppages of the covers, and the like, where two or more parts take-up motion and to the fact that the back 5 require to be adjustably connected; For curtain portions of the tape where the weaving stops and suspension purposes, the tape (called heading starts are onlyheld together by one or two wefts, tape) usually has drawcords for pleating purthe rate of production is slow and the tape is poses. By hooktube is meant a short strap relatively weak in structure.

woven integrally at each end with the tapeproper The object of this invention is primarily to and leaving a space between itself and the tape expedite the weaving operations and thereby refor a hook to enter and engage the strap. duce the cost of production, and further, to pro- In the usual makes of said curtain heading tape duce a tape which is stronger, and has a better only a single hook-tube is formed at intervals appearance than the tapes produced by the said F along the tape. In the construction of tape formknown methods. A further object, in some forms ing the subject of my co-pending application of the tape, is to obtain a more pliable tape trans- No. 222,744 two (or twin) hook-tubes take the versely where the hook-tubes come.

place of the single hook-tubes. In the case of According to the invention, two shuttles are a pleating tape, the hook-tubes (single or-twin) used in the weaving of the tape, and whilst one lie in the pleat channels and (or) on the pleat shuttle lays its weft in each warp shed whilst ridges, or to right and left of the pleat ridges, forming the hook-tube straps, and the other shutwhen the tape is pleated. tle lays its weft in each warp shed Whilst forming In one method of weaving the known tape those parts of the tape above and below and having the single hook-tubes, extra warps are behind the hook-tube straps, the two shuttles L5 provided to form each hook-tube strap, and two lay their combined wefts in each warp shed of shuttles are used to weave the tape where the those parts of the tape intermediate of the hookhook-tube comes, one shuttle weaving'the tape tubes (single or twin), the whole of the multiple proper and the other weaving the hook-tube strap, Wefts extending across the full width of the tape,

and the same two shuttles weaving those parts or across a portion only, and certain only of the of the tape intermediate of'the hook-tubes, one said wefts extending across the full width of the 39 interwoven parts corresponding in width transduction, with consequent reduction in cost. And,

shuttle weaving the back part or tape proper tape.

and the other shuttle interweaving at intervals To allow for the laying of the multiple weft, of several picks or warp sheds, the extra hookthe speed of the loom take-up motion is intube warps into said intermediate parts, the said creased, thereby causing a quicker rate of pro versely of the tape to the vertical length of the owing to the multiple weft lay, a fuller and hook-tubes, and leaving thin marginal edges bestronger make of tape is produced. The speed yond the hook-tubes. Such make of tape is virof the take-up motion may be accelerated when tually a two-ply fabric along its central parts, only laying a single weft (or two wefts) per pick 40 but, owing to the open spacing of the weft used when forming the hook-tube. straps and their to bind the central portions together, the tape 7 associated parts, with consequent saving of mateis other than strong. Moreover, in using a single rial, and increased rate of production, although shuttle for each of the aforesaid weaving operaslightly reducing the closeness of the texture of tions, production is comparatively slow, the takesaid parts.

up being the same throughout the whole length In one example of the invention, either in re- 45 of the tape, and being governed by the laying gard to a tape with single hook-tubes, or to a tape of a single weft in each warp shed for the ,hookwith pairs of hook-tubes at spaced intervals, the tubes and those parts of the tape proper behind two shuttles operate simultaneously, one to weave the hook-tubes. s a hook-tube strap and the other to weave those In another method of weaving the known tape, parts of the tape associated with the hook-tube, 50 with single hook-tubes, one shuttle only is used and each shuttle lays one weft at each pick, or throughout the whole length of the tape, and to in each warp shed. The two shuttles then operallowof this, the loom take-up motion is ate to form that part of the tape extending bestopped whilst each hook-tube strap is being tween hook-tubes (or tubes) and hook-tube (or woven, and after forming such strap the taketubes) and lay-two wefts-in each warp shed.

In addition to laying two wefts in each warp shed of the said intermediate parts, the warp shedding is such as to cause the two wefts to extend across the full width of the tape, 1. e., engage all the warps of the tape.

In another example, the hook-tube straps and those parts of the tape associated with them are woven, as in the first example, by two shuttles as separate thicknesses, but each intermediate part of the tape between successive hook-tubes (single or twin) is woven with two wefts at each pick, or in each warp shed, for a portion only of the width of the tape, the other portion (or portions) of said part having only a single weft laid at each pick, or in each warp shed. Whilst allowing of increased speed of production and economy of weft, this last example has the drawback of not being so strong where only a single weft is laid in a portion (or portions) of the said intermediate parts.

In a further example, the hook-tube straps and the parts of the tape associated with them, are woven by two shuttles, each carrying two wefts, and two wefts being laid in each warp shed in weaving each thickness, but in weaving those parts of the tape intermediate of the hook-tubes (single or twin), the shuttles lay all four wefts (two from each shuttle) in each warp shed and lay them for the full width of the tape, or only for a portion of the width, the other portion (or portions) having only two wefts per pick. In place of four wefts, there may be three wefts, one laid by one shuttle and two by the other shuttle, in forming the hook-tube straps and the associated parts of tape, and all three wefts being laid at each pick in forming those parts of the tape intermediate of the hook-tubes (single or twin), the three wefts being laid across the full width of the tape, or two across the central portion, and only one across the full width of the tape. 1

In all cases, the take-up motion of the loom is accelerated to suit the multiple weft weave.

In the accompanying drawing:

Fig. 1 is a front face view (more or less diagrammatic) of a portion of a heading tape produced according to the first-named example.

Fig. 2 is a vertical cross section on line x.r, and Fig. 3 a sectional plan View on line y-y of Fig. 1. 1

Fig. 4 is a front face view similar to Fig. 1 of a portion of a heading tape produced according to the second-named example.

Fig. 5 is a front face view similar to Fig. 1, and Fig. 6 a sectional plan of a portion of heading tape producedaccording to the third-named example.

Fig. 7 is a further front face view similar to Fig. 1 of a modified form of the third example of the improved heading tape.

Fig. 8 is a front face view, and Fig. 9 a sectional plan of a further example of the improved tape.

Fig. 10 is a front face view of a modification of Figs. 8 and 9.

Figs. 11 and 12 are vertical cross sections respectively of further examples of the improved tape.

of the hook-tubes (single or twin). 'Fig. 8, the three wefts may extend across the of the tape proper behind the strap and the strap collectively forming the hook-tube. As shown in Figs. 1 and 3, the hook-tube strap a and the parts b, 11, also the part c behind the strap, are woven with a single weft at each pick, and by means of two shuttles, one forming the strap a, and the other forming the parts b, b and 0. After forming the hook-tube parts, the two shuttles then form that part d of the tape lying between one hook-tube and the next, and in doing so lay their combined wefts in each warp shed, as shown by the wider spacing of the weft shade lines in Fig. l and by Fig. 3. During such double laying of the weft, the warp take-up motion of the loom is accelerated to suit.

As shown in Fig. 4, instead ofthe double weft extending across the full width of the parts (1 of the tape, it may extend across only a portion of such width, i. e., across the central portion 0f the tape, the selvedge portions of the tape being woven by one of the shuttles only, and having only one weft per warp shed. In this example, the take-up is also accelerated whilst weaving each of the parts (1 of the tape.

In the example of tape shown in Figs. 5 and 6, the hook-tubes parts a, b', b and c are Woven by two shuttles, each laying two wefts per pick, in forming each thickness, whilst the two shuttles lay their combined wefts (four in all per shed) in weaving the parts d. As in the case of Fig. 4, the four wefts may be laid in the middle portion of the tape, and two only be laid in the marginal parts of the tape, as shown in Fig. '7. As afore said and as shown in Figs. 8 and 9 there may be three wefts instead of four, one weft being laid by one shuttle in each shed in forming the hook-tube strap a, two wefts being laid by the other shuttle in each shed in forming the associated parts a and all three wefts being laid at each pick in forming the parts d intermediate full width of the tape, or as shown in Fig. 10, two wefts may extend across the central portion only, and one weft extend across the full width of the. tape. Whilst the three wefts are being laid, the take-up motion of the loom is accelerated.

Instead of a portion only of the warps of the central part of the tape being raised and woven by one shuttle to form a hook-tube strap, whilst the other portion of warp is woven by the other shuttle to form that part of the tape proper behind the strap, the whole of the warps of the central part may be raised andwoven to form the hook-tube strap by one shuttle, whilst only the selvedge parts I), b above and below the'hook- As shown in tube strap are woven by the other shuttle, which results in only free floating weft threads extending from selvedge part to selvedge part and lystrap being without warp, it may be woven in",

the usual way, and the selvedges of the tape above and below the strap consist of warps only, the weft being laid in the central parts only, see Fig. 12.

In each of these last-named modifications an economy of material is effected, and the tape is rendered more pliable where each hook-tube comes, which causes the hook-tube straps a 'to more readily stand out from the tape, especially when the tape is pleated.

As shown in Fig. 13, the improved weavemay be applied to a tape embodying spaced pairs of side-by-side hook-tubes, in place of the spaced single hook-tubes, each hook-tube strap and the parts of the tape b, b and 0 being woven as separate thicknesses, and each shuttle laying one or two wefts in each warp shed, and the parts (1, (1, being woven by both shuttles laying their combined wefts in each warp shed of said parts, said wefts extending across the full width of the tape as shown in Fig. 5, or across the central portion only as shown in Fig. 7, whilst only one, two or three wefts are laid in the outer portions.

When the tape is provided with drawcords, they, the drawcords, will preferably pass in front of the tape where each hook-tube comes, and behind each hook-tube strap, and then through the tape proper and behind the parts 02, as shown in Figs. 6 and 13. The drawcords may however, merely pass through the edge parts of the tape. And by arranging the cords to pass behind both hook-tube straps in the case of twin hook-tubes, the pleat channel in which the hook-tube straps lie may be somewhat larger than the other pleat channels, and thus cause the curtain when pleated to have a box-pleat effect where the two hook-tube straps come, and an ordinary small pleat effect at other parts.

What I claim is:

l. Curtain heading and like tape have hook tubes at intervals along its length and formed from Warp and weft threads, those parts of said tape in the intervals between said hook-tubes having a plurality of Weft threads in each warp shed, said plurality of weft threads being divided at the areas containing hook-tubes so that a portion thereof is woven into the hook-tube straps and the remainder is woven into the part of said tape behind the hook-tubes.

2. Curtain heading and like tape having pairs of hook-tubes at intervals along its length and formed from warp and weft threads, those parts of said tape in the intervals between said pairs of hook-tubes having a plurality of weft threads in each warp shed, said plurality of weft threads being divided at the areas containing hook-tubes so that a portion thereof is woven into the hooktube straps and the remainder is woven into the part of said tape behind the pairs of hook-tubes.

3. Curtain heading and like tape having hooktubes at intervals along its length and formed from warp and weft threads, those parts of said tape in the intervals between said hook-tubes having a plurality of weft threads in each warp shed, said pluraltiy of weft threads being divided at the areas containing hook-tubes so that a portion thereof is woven into the hook-tube straps and the remainder is woven into the part of said tape lying above, below and behind the hook-tubes.

4. Curtain heading and like tape having hooktubes at intervals along its length and formed from warp and weft threads, those parts of said tape in the intervals between said hook-tubes having two weft threads in each warp shed, said weft threads being divided at the areas containing hook-tubes so that one thread is woven into the hook-tube straps and the other is woven into the part of said tape behind the hook-tubes.

' 5. Curtain heading and like tape having hooktubes at intervals along its length and formed from warp and weft threads, those parts of said tape in the intervals between said hook-tubes having four weft threads in each warp shed, said weft threads being divided at the areas containing hook-tubes so that two threads are woven into the hook-tube straps and the other two threads are woven into the part of said tape behind the hook-tubes.

6. Curtain heading and like tape having hooktubes at intervals along its length and formed from warp and weft threads, those parts of said tape in the intervals between said hook-tubes having three weft threads in each warp shed, said Weft threads being divided at the areas containinghook-tubes so that one thread is woven into the hook-tube straps and the other two threads are woven into the part of said tape behind the hook-tubes.

'7. Curtain heading and like tape having hooktubes at intervals along its length and formed from warp and weft threads, those parts of said tape in the intervals between said hook-tubes having a plurality of weft threads in each warp shed, said plurality of weft threads being divided at the areas containing hook-tubes so that a portion thereof is woven into the hook-tube straps and the remainder is woven into the part of said tape behind the hook-tubes, the parts of said tape above and below said hook-tubes being formed of warp threads only.

portion thereof is woven into the hook-tube straps and the remainder is woven into the part of said tape behind the hook-tubes, all the warp threads being woven into said hook-tube straps so that that part of said tape immediately behind said straps is formed of weft only and the edges of said tape above and below said hookvtubes is woven with weft and warp.

GEORGE FREDERICK FRENCH.

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