Improvements in the Method of Fastening the Pile to the Grounds or Backs when Weaving Pile Fabrics, such as Plushes, Velvets, Double.
Year: 1886

page_text: Date of Application, 27th July, 1886.
Complete Left, 27th Apr., 1887.
Complete Accepted, 27th May, 1887.
PROVISIONAL SPECIFICATION.
Improvements in the Method of Fastening the Pile to the Grounds
or Backs when Weaving Pile Fabrics, such as Plushes, Velvets,
Double.
We Dr. EGMONT WEBSKY, CARL FRIEDRICH HARTMANN, CARL WIESEN and BRUNO
HARTMANN all of the firm of Websky, Hartmann & Wiesen of Wüstewaltersdorf in
Schlesien, in the Empire of Germany, Manufacturers, do hereby declare the nature of
this invention to be as follows:-
This invention relates to the employment of a new method of fastening the pile to
the grounds or backs when weaving pile fabrics, such as plushes, velvets, double, and
the nap is formed by severing the pile woven between the grounds or backs which
method of fastening the pile to the grounds or backs has for its objects to ensure a
better and straighter position of the nap, division of the groups of the nap tuft fibres
and better spreading of the nap.
Annexed drawing illustrates the pile fabrics woven double, and when applying the
new method of fastening the pile to the grounds or backs as named above, in section.
The weft threads are represented in section & numbered .consecutively, as they are
woven in.
The warp pile threads necessary for a warp round, which are marked on the
starting points, with a, b, c, d, are drawn apart from each other & marked differently,
in order that the method of fastening the separate pile threads, will be understood.
It will be seen that after each 24 picks, each pile thread repeats its fastening in the
same manner, viz., the weft round in this double pile fabric includes 24 picks.
The following is characterized in the manufacture of the pile fabrics woven double
after the named method of fastening the pile to the grounds or back :-
:-
1st. The pile threads which are crossing each other, & after the severing of the
double pile fabric, form the nap, do not meet together on entering or leaving the
grounds or backs, but are kept separately in the direction of the warp threads, by
extra layed-in weft threads, which are shown on Fig. 1. sectional, and darked, and
marked with numbers, 3, 4, 9, 10, 15, 16, 21, 22, 27, 28, whereby the division of the
groups of nap tuft fibres mentioned herein before, is obtained.

page_text: 2nd. To prevent the laying of the nap sideways, viz., in the direction of the weft
threads, each pair of the pile threads is embedded between two quite uniform fastening
ground warp threads, that the nap.tufts raised from the ground web will receive the
same support on each side, and the nap tufts aro obliged to stand straight.
Fig. 2 represents in this case the under side of the double fabric which shows the
arrangement of the pile threads to the ground warp threads, and both to the weft
threads, marked 2, 4, & so forth to 28, also the alternate passing of the pile thread to
the back of the fabric.
The ground warp threads are marked e, f, g, h, & the pile threads, as in Fig. 1
with a, b, c, d.

page_text: COMPLETE SPECIFICATION.
Improvements in the Method of Fastening the Pile to the Grounds
or Backs when Weaving Pile Fabrics, such as Plushes, Velvets,
Double.
We, Dr. EGMONT WEBSKY, CARL FRIEDRICH HARTMANN, CARL WIESEN, and
BRUNO HARTMANN, all of the firm of Websky, Hartmann, & Wiesen, of Wüstowalters-
dorf in Schlesien, in the Empire of Germany, Manufacturers, do hereby declare the
nature of this invention and in what manner the same is to be performed to be
particularly described and ascertained in and by the following statement :-
This invention relates to the employment of a new method of fastening the pile to
the grounds or backs, when weaving pile fabrics, such as plushes, velvets, double, and
the nap is formed by severing the pile woven between the grounds or backs, which
method of fastening the pile to the grounds or backs has for its objects to ensure a
better and straighter position of the nap, division of the groups of the nap tuft fibres,
and better spreading of the nap.
And in order that our invention may be better understood we have caused to be
appended hereunto one sheet of drawings marked with letters of reference indicating
like parts in the various figures.
Fig. 1 in annexed drawing illustrates the pile fabrics woven double, and when
applying the new method of fastening the pile to the grounds or backs, as named
above, in section.
The weft threads are represented in section & numbered consecutively, as they are
woven in.
The four warp pile threads necessary for a warp round, which are marked on the
starting points, with a, b, c, d, are drawn apart from each other & marked differently,
in order that the method of fastening the separate pile threads, will be understood.
It will be seen that after each 24 picks, each pile thread repeats its fastening in the
same manner, viz., the weft round in this double pile fabric includes 24 picks.
The following is characterized in the manufacture of the pile fabrics woven double
after the named method of fastening the pile to the grounds or backs :-
:-
1st. The pile threads which are crossing each other, and after the severing of the
double pile fabric, form the nap, do not meet together on entering or leaving the
grounds or backs, but are kept separately in the direction of the warp threads, by
extra laid-in-weft threads, which are shown in Fig. 1. sectional, and darked, and
marked with numbers, 3. 4. 9. 10. 15. 16. 21. 22. 27. 28. whereby the division of the
groups of nap tuft fibres mentioned hereinbefore, is obtained.
2nd. To prevent the lying of the nap sideways, viz. in the direction of the weft
throads, each pair of the pile threads is embedded between two quite uniform fastening
ground warp threads, that the nap tufts raised from the ground web, will receive the
saine support on each side, and the nap tufts are obliged to stand straight.
Fig. 2 represents in this case the under side of the double fabric which shows the
arrangement of the pile threads to the ground warp threads, & both to the weft

page_text: threads, marked 2. 4. and so forth to 28, also the alternate passing of the pile threads
to the back of the fabric.
The ground warp threads are marked e, f, g, h, & the pile threads as in Fig. 1,
with a. b. c. d.
Having now particularly described and ascertained the nature of our said invention
and in what manner the same is to be performed we declare that what we claim, is:-
The method of fastening the pile in plush or velvet woven double and having
several piles so that the fastening in the weft round contains 24 threads, and in the
warp round 8 ground and 4 pile threads, and the threads which form the pile will be
separated by extra weft threads placed between on entering and leaving the ground,
and on being drawn in will be kept upright between the two alike binding ground
warp threads, substantially as set forth.