AN IMPROVED SEAMLESS RUBBER FOR CONDERSER MACHINES EMPLOYED IN MANUFACTURING WOOLLEN to be as follows:- AND OTHER YARNS
Year: 1886

page_text: Date of Application, 1st Oct., 1886.
Complete Left, 1st July, 1887.
Complete Accepted, 19th Aug., 1887.
We, WILLIAM TERRY and JOHN TERRY, of Dudley Hill, near Bradford, Yorkshire,.
Manufacturers, and FESTUS RAWNSLEY of the same place, Manager, do hereby declare
the nature of our invention for AN IMPROVED SEAMLESS RUBBER FOR CONDERSER
MACHINES EMPLOYED IN MANUFACTURING WOOLLEN
to be as
follows:-
AND
OTHER YARNS
Hitherto, the rubbers employed for purposes aforesaid have been made of leather
having their over-lapping ends joined, but such leather rubbers are not only very
expensive, but are often soon rendered useless by reason of weak and uneven places
in the leather.
According to our invention we propose to make rubbers for condensing machines
of a woven or knitted fabric without any seam or joint.
This fabric is woven in an ordinary loom, or in what is now called a French
knitting loom and is produced in a tubular form, so that on leaving the said loom it
resembles one long tube or bag, sections of which may be afterwards cut off and used
as rubbers for condensers.
The tubular fabric may be of ordinary weave but we prefer to weave it of two or
more plies, where the threads are so arranged in the harness as to be divided into two
parts by an imaginary horizontal line, which is the line between the inner face of the
fabric when woven that is to say, that if this tubular woven fabric is made of two ply,
it consists of four sets of warp threads; so arranged that two sets of warp threads aro
above, and two sets of warp threads are below the imaginary horizontal line, and two

page_text: sets of warp threads on each edge or side of the tube are so arranged in the
harness, that the edges are interwoven and a complete tubular fabric is formed
thereby.
In practice it is found that in tubular fabrics so woven, there is a ridge at the
places where the threads are interwoven at the edge or side, in order therefore that
this may be no detriment when used as rubbers, the fabric is reversed so that the
ridge is placed within the tube, and in order to take the roughness off the fabric, it is
calendered and made smooth so as not to stick or adhere too much to the sliver which
is being rubbed into a thread.
DU ›1* 2011 1
2
1
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1000

page_text: We WILLIAM TERRY and JOHN TERRY, of Dudley Hill, near Bradford, Yorkshire,
Manufacturers, and FESTUS RAWNSLEY, of the same place, Manager, do hereby
declare the nature of this invention and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement:-
Hitherto the rubbers employed for condenser machines have been made of leather
having their over-lapping ends joined, but such leather rubbers are not only very
expensive, but are often soon rendered useless by reason of weak and uneven places in
the said leather.
According to our invention we propose to make rubbers for condensing machines of
a woven or knitted endless fabric without any seam or joint.
This fabric is woven in a tubular form, so that on leaving the loom it resembles one
long tube or bottomless bag, sections of which may afterwards be cut off and used as
rubbers for condensers..
For the purpose of putting body into the fabric, combined with smoothness of
surface, we employ fine counts of yarn and weave the fabric of two or more plies.
In practice it is found that in tubular woven fabrics, there is a ridge or slight
uneveness at the places where the threads are joined or interwoven; in order therefore
that this ridge or uneveness may be no detriment when used as rubbers, the endless
fabric is reversed, so that the said ridge is placed within the tube, and in order to
take the roughness off the fabric, it is calendered and made smooth by any well known
process so as not to stick or adhere too much to the sliver which is being rubbed into
a thread.
Having now described the nature and particulars of our invention, we would have
it understood that we do not claim the manufacture of endless woven fabrics, as such
are known and used for a variety of purposes, but what we claim is :-
Firstly-The application and use as condenser rubbers of endless fabrics, woven of
two or more plies, substantially as set forth.

page_text: Secondly-The employment as condenser rubbers, of endless fabrics, woven of two
or more plies, such woven endless rubbers being reversed before using, so as to place
the selvedge ridge within the tube for purposes aforesaid.
:-
Thirdly The manufacture of condenser rubbers woven of two or more plies and
calendered so as to be made smooth for purposes aforesaid.
Dated this 20th day of June 1887