US2714400A - Weaving with wire variations - Google Patents

Description

g- 1955 JOHN HENRY HARDING 2,714,400

GENERALLY KNOWN AS HARRY J. HARDING WEAVING. WITH WIRE VARIATIONS Filed Feb. 25, 1955 2 Sheets-Sheet 1 INVENTOR Jdn 222" Har 2, 1955 JOHN HENRY HARDING 2,714,400

GENERALLY KNOWN AS HARRY J. HARDING WEAVING WITH WIRE VARIATIONS Filed Feb. 25, 1955 2 Sheets-Sheet 2 INVENTOR @472 Henry Hard; 2; ezerazly Aaom as BYfla r J Hard'zzg nitd States Pate n WEAVING WITH WIRE VARIATIDNS John Henry Harding, generally known .as Harry J. Harding, Philadelphia, Pa., assignor to C. :H. Maslan'd & Sons, Carlisle, Pa., a corporation of Pennsylvania Application February 25, 1953, Serial No. 338,694 4 Claims. 01. 139-39 The present invention relates to pile fabrics of the character of carpets and rugs.

A purpose of the invention is 'to increase the production of carpets and rugs by carpet looms.

A further purpose is to permit weaving pile of different characters with pattern change using "a jacquard mechanism, but employing only a single pile frame.

A further purpose is to insert wires alternately from opposite sides, to put in a wire with every shot of weft, and to selectively raise pile warp ends over wires of one character or wires of another character, floating the ends at the back of the fabric at points of pattern change.

A further purpose is 'to economize on material by reducing the need for wefts.

Further purposes appear in the specification and in the claims.

In the drawings I have chosen to illustrate a few only of the numerous embodiments of my invention, selecting the forms shown from the standpoints of convenience in illustration, satisfactory operation andclear demonstration of the principles involved.

Figures 1 and 2 are warpwise conventional weave diagrams showing the same wefts at different positions weftwise of the fabric which correspond .to different pattern areas.

Figure 3 is a diagrammatic top plan view showing the wires.

Figure 4 is a view corresponding to Figure 1 showing I" a variation.

In accordance with the invention, "at weft position 20,

.pil'e warp ends 21 selected by :aLj-acquard or other pattern warp 24 is raised half way. Thus an upper shed is formed in which a wire 25 of a first set is inserted, and a lower shed is formed in which weft 20 is inserted.

In the next step, as seen in Figure l, pile warp ends 21 are lowered by the jacquard mechanism, and at another position weftwise as seen in Figure 2, pile warp ends 21' are fully raised. Binder warp 23 is raised half way and binder warp 22 and stulfer warp 24 are lowered. Wire 26 of a second set is inserted in the upper shed and weft 20' is inserted in the lower shed.

While the invention can be applied with wires 25 and 26 of similar character, it will normally be very desirable to use wires of different characters in the different sets, for example one cutting and the other non-cutting, one high and the other low, one straight and the other wavy (varying in height along its length within the shed) or one of any of those characters and the other having a flag on the end beyond the shed.

In the next step, pile warp ends 21 are fully raised as shown in Figure l, the binder warps and stutter warps again reverse, and at another position Weftwise as seen in Figure 2, pile warp ends 21 are fully lowered. A wire 25 of the first set is inserted in the upper shed and a weft 2,714,400 Patented Aug. 2, 1955 20 is inserted in the lower shed. 'The wire could of course differ from any previously inserted.

So far we note that in the difierent pattern areas the pile warp ends 21 are forming pile of one character over wires 25 and the pile warp ends 21 are forming pile of a different character over wires 26. Now pattern change occurs under the action of the jacquard or other pattern control. In the next step in both pattern areas pile warp ends 21 and21' are both fully down, while the binder warps and stulfer warp reverse. Wire 26 inserted at this point has no function, in these pattern areas, although in some third pattern areas spaced weftwise from these pile warp ends 21 or 21 may be raised over it as dictated by the jacquard. The effect is to cause a float 27 behind weft 20 at the back of the fabric of pile warp ends 21'.

At the next step pile warp ends 21' are now fully raised, but a pattern change is taking place in pile warp ends 21 and they are fully lowered as shown in Figure 1. The binder warps and stulfer warps reverse and wire 25 of the first set is inserted. Now we note in Figure 2 that whereas pile warp ends 21 were formerly over wire 26, they now appear over wire 25. Weft 20 is inserted in the lower shed and in Figure l pile warp ends 21 form a float '27 at the back of the fabric.

At the next step as seen in Figure l pile warp ends 21 are fully raised over wire 26 of the second set, and in Figure 2 pile warp ends 21' are fully lowered and the binder and stutter warps have reversed. Wire 26 is insorted in the upper shed and weft 20 is inserted in the lower shed. There is now a complete pattern change in wires 26 of the second set. The weaving continues according to this new alternate relationship until a new these two areas, as pile warp ends 21 now appear over pattern change is made.

It is evident of course that Figures 1 and 2 represent only two pattern areas, but in the preferred embodiment the fabricwill consist of more than two such areas, varying in contour at difierent points weftwise. There may of course be any desired number of different pattern areas.

While in Figures 1 and 2 I employ two binder warps and the stufifer warp, I may if desired use a binder warp 22 woven in opposition to a stuflfer warp 23" which may be either the usual rather stilf stufier warp, or any compromise between the usual stuflfer warp and the normally more pliable binder warp.

In inserting the wires of the two sets as shown in Figure 3, it is preferable to use a double wire motion, inserting wires 25 from the left and wires 26 from the right for example. The heads of the respective wires are shown at 28.

It will thus be evident that a very rapid weave is provided, since it is possible to insert a wire with each weft, to eliminate back wefts, and to employ separate wire motions at the opposite sides.

In view of my invention and disclosure variations and modifications to meet individual whim or particular need will doubtless become evident to others skilled in the art, to obtain all or part of the benefits of my invention without copying the process and fabric shown, and I, therefore, claim all such insofar as they fall within the reasonable spirit and scope of my claims.

1. The method of weaving a pile fabric, which comprises fully raising selected first pile warp ends, fully lowering selected second pile warp ends, half raising first binder warp ends, lowering second binder warp ends, thus forming an upper shed and a lower shed, inserting a wire of a first series in the upper shed, inserting a shot of weft in the lower shed, fully raising second pile warp ends, fully lowering first pile warp ends, half raising second binder warp ends, lowering first binder warp ends,

inserting a wire of a second series in the upper shed, inserting a shot of weft in the lower shed, fully lowering first and second pile warp ends, half raising first binder warp ends, lowering second binder warp ends, thus forming an upper shed and a lower shed, inserting a wire of the first series in the upper shed, inserting a weft in the lower shed, fully raising first pile warp ends, lowering second pile warp ends, half raising second binder warp ends, lowering first binder warp ends, thus forming an upper shed and a lower shed, inserting a wire of the second series in the upper shed, and inserting a shot of weft in the lower shed.

2. The method of weaving a pile fabric, which comprises fully raising selected first pile warp ends, fully lowering selected second pile warp ends, half raising first binder warp ends, lowering second binder warp ends, thus forming an upper shed and a lower shed, inserting a wire of a first series from one side in the upper shed, inserting a shot of weft in the lower shed, fully raising second pile warp ends, fully lowering first pile warp ends, half rais ing second binder warp ends, lowering first binder warp ends, inserting a wire of a second series from the oppo site side in the upper shed, inserting a shot of weft in the lower shed, fully lowering first and second pile warp ends, half raising first binder warp ends, lowering second binder warp ends, thus forming an upper shed and a lower shed, inserting a wire of the first series from the one side in the upper shed, inserting a Weft in the lower shed, fully raising first pile warp ends, lowering second pile warp ends, half raising second binder warp ends, lowering first binder warp ends, thus forming an upper shed and a lower shed, inserting a wire of the second series from the opposite side in the upper shed, and inserting a shot of weft in the lower shed.

3. The method of weaving a pile fabric, which comprises fully raising selected first pile warp ends, fully lowering selected second pile warp ends, half raising first binder warp ends, lowering second binder warp ends, thus forming an upper'shed and a lower shed, inserting a wire of a first series in the upper shed, inserting a shot vof weft in the lower shed, fully raising second pile warp ends, fully lowering first pile warp ends, half raising second binder warp ends, lowering first binder warp ends, inserting a wire of a second series in the upper shed,

inserting a shot of weft in the lower shed, fully lowering first and second pile warp ends, half raising first binder warp ends, lowering second binder warp ends, thus forming an upper shed and a lower shed, inserting a wire of the first series in the upper shed, inserting a weft in the lower shed, fully raising first pile warp ends, lowering second pile warp ends, half raising second binder warp ends, lowering first binder warp ends, thus forming an upper shed and a lower shed, inserting a wire of the second series in the upper shed, inserting a shot of weft in the lower shed, fully raising second pile warp ends, lowering first pile warp ends, half raising first binder warp ends, lowering second binder warp ends, inserting a wire of the first series in the upper shed, and inserting a weft in the lower shed.

4. The method of weaving a pile fabric, which comprises fully raising selected first p'ile warp ends, fully lowering selected second pile warp ends, half raising first binder warp ends, lowering second binder warp ends, thus forming an upper shed and a lower shed, inserting a wire of a first series from one side in the upper shed, inserting a shot of weft in the lower shed, fully raising second pile warp ends, fully lowering first pile warp ends, half raising second binder warp ends, lowering first binder warp ends, inserting a wire of a second series from the opposite side in the upper shed, inserting a shot of weftin the lower shed, fully lowering first and second pile warp ends, half raising first binder warp ends, lowering second binder warp ends, thus forming an upper shed and a lower shed, inserting a wire of the first series from the one side in the upper shed, inserting a weft in the lower shed, fully raising first pile warp ends, lowering second pile warp ends, half raising second binder warp ends, lowering first binder warp ends, thus forming an upper shed and a lower shed, inserting a wire of the second series from the opposite side in the upper shed, inserting a shot of weft in the lower shed, fully raising second pile warp ends, lowering first pile warp ends,

. half raising first binder warp ends, lowering second binder warp ends, inserting a wire of the first series from the one side in the upper shed, and inserting a weft in the lower shed.

References Cited in the file of this patent UNITED STATES PATENTS 1,113,098 Brooks Oct. 6, 1914 2,371,038 Faber Mar. 6, 1945 2,573,841 Groat Nov. 6, 1951 2,609,839 Groat Sept. 9, 1952 FOREIGN PATENTS 273,409 Great Britain July 6, 1927

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