Process for Manufacturing Pile Fabrics.
Year: 1899

page_text: Date of Application, 22nd Aug., 1899 -Accepted, 20th Jan., 1900
COMPLETE SPECIFICATION.
Process for Manufacturing Pile Fabrics.
I, WILHELM BOSHECK, of 4, Cronenberger Strasse, Elberfeld, in the Province
of the Rhine, German Empire, Manufacturer, do hereby declare the nature of
this invention, and in what manner the same is to be performed, to be particu-
larly described and ascertained in and by the following statement:-
Hitherto in pile fabrics with one or two pile threads in each split or dent
of the reed, the naps were arranged in such a manner that each nap was wrapped
around a number of picks or weft threads which had no contact with the next
following nap, consequently, the tying or binding of each nap commenced when
the binding of the foregoing nap was completed.
This manner of weaving has proved the following disadvantages:
1st. Two naps come to lie together, whereby their heads are prevented to
spread thoroughly and consequently they seem to be one single nap (Fig. 1),
or
2nd. One or several picks are thrown between these naps, whereby their
number in proportion to the numbers of the picks is lessened (Fig. 2), or
3rd. The nap is wrapped around a single pick, whereby the durability of the
nap is reduced enormously (Fig. 3).
The object of the present invention is a process for manufacturing pile fabrics
in which the pile threads, for the purpose of separating the threads forming
the naps are arranged in such manner, that two of them appertaining to the
same dent of the reed are wrapped around several picks or weft threads. In
consequence hereof the binding of the first nap into the ground web commences
before the binding of the second nap appertaining to the same dent of the reed is
completed, whereby each nap is placed separately without their number being
lessened, the same even is augmented and the linen kind binding is kept up.
In order to make my invention more clear I beg to refer to the accompanying
drawing in which similar letters denote similar parts and in which:
Fig. 1-3 represent fabrics of old weaving processes showing the above cited
deficiencies.
Fig. 47 represent a fabric produced according to my invention, taffeta
binding being chosen as ground binding.
Fig. 4 represents a plan view upon the dents of the reed.
Fig. 5 shows a section through the first dent of the reed.
Fig. 6 a section through the second dent.
Fig. 7 indicates the run of the pile threads, in a double pile fabric.
Between the warp threads a a' (Fig. 4) two pile threads b and c are bound,
each one binding three of the six picks, in such a manner that the binding of
the thread is introduced before the binding or tying of the thread 6 is com-
pleted, thereby they cross each other as represented at d (Fig. 5)
Owing to this crossing at d and also at f. (Fig. 5) one pick comes to lie
between the naps without the linen kind binding of the pile threads being
Consequently a surface about 25% better than the surface represented in
lost.
Fio is created.

page_text: The threads g and g¹, i and k appertaining to the second dent of the reed
are arranged exactly in the same manner as the threads of the first dent of the
reed, but the points of binding are removed for the distance of three picks. The
web is woven in the ordinary manner either on the pile wire or on the double
loom. 2 shafts are necessary for the warp thread and 4 shafts for the pile.
When manufacturing the fabric upon the double loom the warp threads and the
corresponding shafts are doubled. It is not necessary to double the pile threads
working alternatively in the upper and lower shed and the corresponding shafts.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:―
A pile fabric such as is herein before described in the manufacture of which
the pile threads are tied in such manner that two naps appertaining to the same
dent of the reed are wrapped around several picks of weft and the binding of
one nap into the ground web is commenced before the binding of the other nap
appertaining to the same dent of the reed is completed, substantially and for the
purpose as described.
Dated this 21st day of August 1899.
.F. BOSSHARDT & Co,,
4, Corporation Street, Manchester,
Agents for the Applicant.