Improvements in Apparatus for Weaving Double Pile Fabrics with a Figured or Coloured Design.
Year: 1893

page_text: Date of Application, 20th Apr., 1893
Complete Specification Left, 22nd Jan., 1894-Accepted, 24th Feb., 1894
Improvements in Apparatus for Weaving Double Pile Fabrics with
a Figured or Coloured Design.
We, GEORGE PRIESTLEY and FREDERICK PRIESTLEY, of the Firm of George
Priestley and Co. Mount Street Shed, Leeds Road, Bradford, in the County of
York, Manufacturers, do hereby declare the nature of this invention to be as
follows:-
This invention relates to improvements in apparatus for weaving double pile
fabrics with a woven or coloured design and particularly to the arrangement or
apparatus for which we have made application for Letters Patent No. 3678 dated
the 25th February 1892 and the object of the invention is to increase the efficiency
of the pile feed mechanism as well as simplify its construction.
For this purpose we employ one pile feed roller and connect the harness of the
jacquard to the pile warp close to each side of said roller that is to say each
pile warp thread is connected to two harness cords on opposite sides of the roller
operated simultaneously.
A convenient arrangement is to use two comber boards and one on each side of
the feed roller and to cut the pattern cards of the jacquard so that one half of
the cards are a duplicate of the other and operate one half of the uprights on one
side of the feed roller by one half of the cards and the uprights on the other
side of the feed roller by the other half of the cards. We also find it advan-
tageous in this arrangement to turn the Jacquard machine at right angles to the
position it usually occupies.
In the above described arrangement as the pile warp is lifted on both sides of
the feed roller to bring it into contact therewith we obtain a larger surface or
frictional contact with the feed device and consequently a more certain feed as well
as reduce the liability of the warp clinging to the feed device after the harness is
lowered.
Dated this 19th day of April 1893.
DRACUP & NOWELL,
Bradford, Agents.
COMPLETE SPECIFICATION.
Improvements in Apparatus for Weaving Double Pile Fabrics with
a Figured or Coloured Design.
We, GEORGE PRIESTLEY, and FREDERICK PRIESTLEY, of the Firm of George
Priestley and Co. Mount Street Shed, Leeds Road, 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 :-
This invention relates to improvements in apparatus for weaving double pile
fabrics with a figured or coloured design and particularly to the arrangement or
apparatus for which we have obtained Letters Patent No. 3678 dated the 25th
February 1892 and the object of the invention is to increase the efficiency of the
pile feed mechanism as well as simplify its construction.
For this purpose we employ one pile feed roller and connect the harness of the
jacquard to the pile warp close to each side of said roller that is to say each pile

page_text: warp thread is connected to two harness cords on opposite sides of the roller
operated simultaneously.
A convenient arrangement is to use two comber boards, one on each side of the
feed roller, aud to cut the pattern cards of the jacquard so that one half of the
cards are a duplicate of the other and operate one half of the uprights on one side
of the feed roller by one half of the cards and the uprights on the other side of the
feed roller by the other half of the cards. We also find it advantageous in this
arrangement to turn the Jacquard machine at right angles to the position it usually
occupies.
In the above described arrangement as the pile warp is lifted on both sides of
the feed roller to bring it into contact therewith we obtain a larger surface or
frictional contact with the feed device and consequently a more certain feed as well
as reduce the liability of the warp clinging to the feed device after the harness
is lowered.
Reference is to be had to the accompanying sheet of drawings forming a part of
this Specification in which similar letters of reference indicate corresponding parts
in each of the figures.
Figure 1, represents a side view partly in section of such parts of a loom
and pile feed mechanism as are necessary to illustrate the application of our
improvements thereto.
Figure 2, is a side view of the jacquard and certain other parts shown in
Figure 1.
Figure 3, is a plan view of the feed roller and certain other parts.
"
The jacquard A' is turned partly round so as to face one side of the loom instead
of being placed in the usual manner and as shown in our previous Specification
cited above. The cards of the jacquard are cut so that one half of each card is a
duplicate of the other half by this means the same number of "uprights are
lifted through the medium of both halves of each card and at the same time. The
harness X from the uprights controlled or operated by one half of each of the cards
is kept separate from the harness X' connected to the uprights controlled by the
other half of the cards and they are passed through separate comber boards Z
and fixed above the continuations B of the side frames A of the loom.
The pile warp represented by the broken lines T and T¹ is, as stated in the above
cited Specification, mounted upon bobbins or creels arranged at the back of the
loom and passes between the guide bars U and over the bars V and through the
reed W. Each thread of the warp is then passed through a mail in both
the harness X and X' arranged to be simultaneously operated and from thence
over the bars Vand forward into the loom to be woven. The pile feed roller D
mounted in bearings E formed in B is situated between the two comber boards over
the warp and is driven by a wheel H in a similar manner to the feed rollers shown
in our previous Specification.
When the uprights are down the weights Y on the harness X and X' hold the
pile warp clear of the feed roller, as shown by the broken lines T Figure 1, but
when the uprights are lifted the pile warp is raised so as to be brought into contact
with the roller D as shown by the broken lines T' and sufficiently enwrap the roller
so as to be fed thereby at the same speed. We find with this arrangement the feed
to be more positive and there is less liability of the warp clinging to the feed roller
after the harness is lowered than when two rollers are employed.
The card motions of both the jacquard for the feed and the jacquard regulating
the pattern of the fabric are operated by the rocking shaft b actuated in any
ordinary manner. The card motion of the jacquard A' is driven by the rocking
shaft d connected to and driven by b through the medium of the connecting rod e
and the arms and 9 rigidly secured on said shafts. The shaft d is connected by
the arms and rods n to the arms i projecting from the vibrating "batten" j.in
which the "cylinder" is mounted.
The jack levers k, k, of the lifting motion of the card are operated by the double
crank wheel C driven in the manner described in the above cited Specification.

page_text: When weaving pile fabrics with a coloured design we find it advisable to employ
a feed jacquard having a greater "lift" than usual, so that as the formation of the
pattern requires different colours of pile to be fed the pile leaving the feed roller is
quite clear therefrom before the other coloured pile, replacing the one leaving, is
brought into contact with the roller.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the sanie is to be performed, we declare that what
we claim is,
1. In a loom for weaving pile fabrics with a figured or coloured design, regulating
or controlling each pile warp thread by two harness cords operated simultaneously
and adapted to bring the pile warp in contact with a feed roller or its equivalent as
required, substantially as herein shown and described.
2. In a loom for weaving pile fabrics with a figured or coloured design, the
combination with a pile feed roller, of Jacquard mechanism and harness arranged
substantially as herein shown and described and illustrated in the accompanying
drawings.
Dated this 18th day of January 1894.
DRACUP & NOWELL,
Bradford, Agents.