IMPROVEMENTS IN POWER LOOMS FOR WEAVING FIGURED PILE FABRICS FACE TO FACE WITH TWO OR MORE SHUTTLES THROWN SIMULTANEOUSLY to be as follows:-
Year: 1885

page_text: Simultaneously.
We SAMUEL CUNLIFFE LISTER and JOSÉ REIXACH both of Manningham Mills
Bradford in the County of York Manufacturers do hereby declare the nature of
our invention for "IMPROVEMENTS IN POWER LOOMS FOR WEAVING FIGURED PILE
FABRICS FACE TO FACE WITH TWO OR MORE SHUTTLES THROWN SIMULTANEOUSLY
to be as follows:-
"
This invention is an improvement on the invention described in the specification
of a Patent granted to us N° 366 in the year 1882.
Our improvements consist in having two sheds for figured pile fabrics woven face
to face so as to throw two shuttles simultaneously the said sheds being made by a
jacquard machine which gives two lifts, one for each shed.
By having two sheds we can use our two shuttle loom Patent N° 3327 A.D. 1878
and No 2629 A.D. 1883 with two or more pieces in width and in combination with
our Patent No 5561 A.D. 1883 for knitting the middle selvedges and by this double
shedded jacquard arrangement in combination with the above named Patent we
shall be able to produce four or more pieces instead of one, which will enable us to
reduce the cost of the same cloth very considerably, also the said pieces will have
fast edges.

page_text: F200 LO гасе WICH ΔΥΟ ΟΙ ΠΙΟΓΟ SHULES LITOWE
Simultaneously.
We SAMUEL CUNLIFFE LISTER and JOSÉ REIXACH both of Manningham Mills
Bradford in the County of York 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 :-
Our Invention relates to weaving figured velvets, plush, or any other pile fabrics
by power looms when two or more pile fabrics are woven face to face at one
operation, and are connected together by means of pile threads, upon severing
which two or more separate and distinct pieces are produced.
The invention relates more particularly to a novel arrangement in the Jacquard
machine to admit of two distinct sheds being held open at one and the same time
for the passing through of two shuttles simultaneously.
The Jacquard machine is employed for producing the figures by means of the
pile warp, each thread of which is put on a separate bobbin which is fixed in a
creel behind the loom.
Each pile warp is connected to two hooks or uprights of the Jacquard and the
hooks or uprights are lifted by two independent sets of knives which move always
in opposite directions one going up as the other goes down and each set of knives
has at different times given to it two lifts of different heights one for each shed.
By this construction we are able to lift the warps from their bottom position to
the middle then from middle to top and afterwards lower them back again to their
bottom, position.
The ground is made by a set of tappets which also regulates the length of pile,
the ground may be either satin, twill or otherwise.
Two rollers or still beams are placed at the back of the loom, one for each
ground warp to open the said warps to a certain angle in combination with
the healds, which healds, those belonging to the top piece are kept at, a higher
level than those belonging to the bottom piece. These two levels and the angle
given by the two rollers or still beams make the pile to keep tight between the
two pieces as described in the Specification of a Patent granted to us Nº 3327 in
the year 1878. .
We also use the pile gauge described in the Specification of our Patent Nº 366
A.D. 1882 to assist in controlling the length of pile.
We also use the above improvements in combination with the mechanism
described in the Specification of the Patent granted to us N° 5561 in the
year 1883, for making fast selvages in the middle of the piece.
By using the double shedded Jacquard arrangement in combination with the
above named patent we shall be able to produce four or more pieces of figured
pile fabric each with fast edges instead of only two pieces which will enable us to
reduce the cost of production very considerably.

page_text: In order that the said invention may be readily understood we shall now
proceed to describe the several figures of the drawings hereunto annexed.
Figure 1 represents a side elevation of the loom with a portion of the Jacquard
needles, sufficient to show the two sheds held open at one and the same time, in
order that the two shuttles may pass through simultaneously.
Figure 2 is a front view of the loom.
Figures 3 and 4 show the tappets for acting on the two sets of knives of the
Jacquard.
Figures 5 and 5* are diagram views of a portion of the double fabric and
Diagrams A. B and C show the action of the Jacquard.
A is the side frame of the loom. B is the crank shaft. C are the swords of the
going part E-they are connected with the crank shaft B by the arms D.
F. F are the ground warps to form the back of the pile fabric R, which warps
are acted upon by the healds G, the said healds being worked by the tappets H as
shown in Figure 2 and as is more fully described in the Specification of the Patent
No 3327 in the year 1878.
I is the creel required to carry the bobbins J upon which the threads of the
pile K are wound, which pile threads are conducted over the rods K¹ to the centre
of the ground warps F. F' and thence through their respective eyes in the
harness N as described in the Specification No 366 in the year 1882.
Lare
weights to give tension to the pile threads K. Q Q are the two rollers or still
beams placed behind the loom to conduct the ground warps F. F1 to the angle
required and for keeping the two sheds sufficiently open to take in the length
of pile required and also for allowing the two shuttles Y. Y₁ to pass through
simultaneously. R is the pile fabric with the pile threads intact before being
severed.
The ground warps F. F are led from warp beams S, one of which is shewn in
Figure 1-The requisite tension is given to these warps by weights T attached to
the ropes U which pass round the warp beams S.
The manner in which the Jacquard P is worked is best seen in Figure 2 and in
the Diagrams A. B and C. h is the low or picking shaft of the loom, on which is
keyed a pinion i geared into a wheel j for giving motion to the tappets V. Vi
which are arranged for raising or depressing the levers W. W₁ (Figures 3 and 4)
XX' are the connecting rods for connecting the Jacquard levers Z. Z' with the
tappet levers W. W. The said levers Z. Z¹ are for working the knives e. e¹ of the
Jacquard P.
Figures 3 and 4 show the tappets V. V¹ and levers W. W¹ for giving the lifts to
the harness N.
Figure 5 is an enlarged view of a section of the cloth R (Figure 1) showing the
tying in of the pile K round the picks f.
The action of the Jacquard is as follows:- -The needles of the Jacquard are acted
on by the pattern cards at every pick in the ordinary manner and each hook or
upright with its fellow hook or upright is acted upon by one and the same
needle.
When the runner of Figure 3 is at point 1 of the tappet V¹ and the runner d,
(Figure 4) is at point 1 of the tappet V the knives will have been brought into the
position shown by diagram A and all the hooks or uprights . will be at the
bottom level c of the Jacquard P, the knife e, when rising to the position b not
having carried up any of the hooks or uprights with it-this causes the pile K
(Figure 5) to float or bind round the pick f on the back of the bottom piece O¹
(Figure 5) until required to be taken up by the next lift.
When the runner d (Figure 3) is at point 2 of the tappet V₁ and the runner d
(Figure 4) at the point 2 of the tappet V the knives will have been brought into
the position shown by diagram B-the knife e will have again descended to the
lowest level c and the knife e¹ gone up to the middle position of such of the hooks
or uprights as had been selected to be raised will thereby have been carried up
and the pile warps coupled to them will have been raised from K¹ to K³ (Figure 5)

page_text: and will dwell there, while the pick f is going into the top and bottom pieces O. 01
(Figure 5). respectively the fellow hook or upright / remaining at the level o
When the runner d (Figure 4) is at point 3 of the tappet V and the runner d¹ at
the point 3 of the tappet V₁ the knives will have been brought into the position
shown by diagram Cthe opposite hooks or uprights to the hooks or uprights 11
which had previously been raised by the knife e¹ will have been raised by the
knife e to the level a and the pile threads connected to them thereby raised from K*
to K³ (Figure 5) onto the back of the top piece O (Figure 5) and held there whilst
a pick fis put into the top and bottom pieces O. 01 (Figure 5) respectively after
which the pile threads descend to the back of the piece O¹ (Figure 5) the knife e
going down from the highest to the lowest level and the knife e¹ going up from the
lowest to the middle level without lifting any hooks with it-afterwards the same
series of operations is repeated the knife e taking the place of the knife e¹ and e¹
that of e.
In this way the Jacquard continues to work the harness N according to
the design of tappet used.
From the above description it will be seen that at the first pick the pile warps
then forming pile are below the back of the bottom piece-at the second pick the
pile warps which have been selected to be raised will have been raised to the
middle, at the 3rd pick these same pile warps will have been raised to the top-at
the 4th pick the pile warps are down at the bottom-at the 5th pick the pile warps
go up to the middle and at the 6th pick these pile warps go up to the top and so on
continuously, during the time the pile is forming the figure. When not making
the figure the pile is floating on the back of the bottom piece being fastened as
shown at diagram Figure 5*.
It will thus be seen that by using a double lift Jacquard such as herein before
described we obtain a figured pile fabric with the pile tied once every three picks
and with the pile warps when not making pile remaining floating at the back of
the bottom fabric.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we would observe
that we do not confine or restrict ourselves to the precise details herein described
but we declare that what we claim is :-
1. The Jacquard mechanism with two sets of hooks each set acted upon by the
knives of two separate griffes which move in opposite directions one going up when
the other goes down and each griffe having given to it at different times two lifts
of different heights by means of cams or tappets substantially as described.
2. The combination of a two lift Jacquard machine with the two shuttle loom
described in the Specification of the Patent granted to us No 3327 in the year 1878
and with a creel for carrying the pile warps substantially as described.
3. The combination of a two lift Jacquard machine with the loom described in
the Specification of the patent granted to us N° 5861 in the year 1883 for weaving
two or more pieces in width with fast inner selvages of double pile fabrics woven
face to face in a power loom with two or more shuttles thrown simultaneously.
Dated this 13th day of March 1886.
CARPMAEL & Co.,
Agents for the Applicants.