NEW AND IMPROVED METHODS OR PROCESSES OF AND APPARATUS FOR STAINING OR DYEING FIBROUS FILAMENTS WHEN IN THE RAW OR WHEN IN A PARTLY PREPARED STATE."
Year: 1872

page_text: LETTERS PATENT to John Carter Ramsden, of Smith House, Light-
cliffe, in the Parish of Halifax, in the County of York, Manu-
facturer, and James Marsland Tankard, of Bowling Hall, Bradford,
in the County aforesaid, Worsted Spinner, for the Invention of
"NEW AND IMPROVED METHODS OR PROCESSES OF AND APPARATUS FOR
STAINING OR DYEING FIBROUS FILAMENTS WHEN IN THE RAW OR WHEN IN A
PARTLY PREPARED STATE."
PROVISIONAL SPECIFICATION left by the said John Carter Ramsden
and James Marsland Tankard at the Office of the Commissioners of
Patents, with their Petition, on the 2nd December 1872.
We, JOHN CARTER RAMSDEN, of Smith House, Lightcliffe, in the
Parish of Halifax, in the County of York, Manufacturer, and JAMES
MARSLAND TANKARD, of Bowling Hall, Bradford, in the County afore-
said, Worsted Spinner, do hereby declare the nature of the said Inven-
tion for "NEW AND IMPROVED METHODS OR PROCESSES OF AND APPARATUS FOR
STAINING OR DYEING FIBROUS FILAMENTS WHEN IN THE RAW OR WHEN IN A PARTLY
PREPARED STATE," to be as follows:
―:
.
This Invention relates to new and improved methods or processes of
and apparatus for staining or dyeing fibrous filaments when in the raw

page_text: or when in a partly prepared state by utilizing and applying for one
portion of such processes, the gasses and vapours arising from the slow
combustion, decomposition, or distillation of the organic products of
ligneous origin, or any other combustible (though by preference we use
coal) either of animal or vegetable origin from which the different hydro-
carbon gases and volatile productions can be evolved during the process
of slow combustion or distillation after the manner described by us in a
Provisional Specification filed in the Great Seal Patent Office on the
30th day of November 1872, No. 3616, in which we describe that
process, the apparatus for carrying it into effect consisting of a receiver
into which the said gases are passed, which upon condensation effect the
staining or dyeing of velvets and all other woven fabrics, but in this
case the receivers in which the gasses and vapours are condensed need
simply be air-tight chambers, and the fibrous filaments to be operated
upon can be hung or laid about within such receiver upon tables or on
the floor, but previous to placing these said fibrous filaments within the
receivers and subjecting them to the influences exercised thereon by the
deposit arising from the condensation of the gases and vapours with which
the said receivers are charged the said fibrous filaments are first saturated
either wholly or in part by some chemical solution, say a preparation of
acetate of lead dissolved in water. The object to be accomplished by
this part of the process is the more readily to effect a change of colour in
the fibrous filaments or in some portion thereof, namely, on that portion
which has been saturated with the solution just referred to; and it will
be found that where the deposit arising from the condensation of the
gases and vapours
has come
in contact with the acetate of lead a
chemical change is effected, the result of which is that a much better
and deeper colour can be obtained upon the said fibrous filaments than
would have been possible by the simple use of the gases and vapours
alone.
ན་
In some cases it will be found advisable to dispense altogether with
the use of the said gases and vapours and the said receivers, and use as
an equivalent a substance possessing peculiar properties, namely,
bisulphide of carbon; this is one of the products evolved during the
decomposition or distillation of coal; it is likewise obtained whenever
sulphur comes in contact with red hot charcoal; it is a colourless liquid
and does not mix with water; it is very volatile and is a powerful
sulphur acid, and combines with the sulphides of lead, silver, and
copper, and forms insoluble compounds.

page_text: It will be found that the fibrous filaments after being immersed in the
preparation of lead in solution will upon the application of bisulphide of
carbon immediately assume a different. colour, and this is by reason of
the chemical change which takes place whenever the two solutions come
in contact.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said John Carter Ramsden and James Marsland
Tankard in the Great Seal Patent Office on the 31st May 1873.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, JOHN
CARTER RAMSDEN, of Smith House, Lightcliffe, in the Parish of Halifax,
in the County of York, Manufacturer, and JAMES MARSLAND TANKARD,
of Bowling Hall, Bradford, in the County aforesaid, Worsted Spinner,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Second day of December, in the year
of our Lord One thousand eight hundred and seventy-two, in the thirty-
sixth year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto us, the said John Carter Ramsden and James Marsland
Tankard, Her special licence that we, the said John Carter Ramsden and
James Marsland Tankard, our executors, administrators, and assigns, or
such others as we, the said John Carter Ramsden and James Marsland
Tankard, our executors, administrators, and assigns, should in any time
agree with, and no others, from time to time and at all times thereafter
during the term therein expressed, should and lawfully might make,
use, exercise, and vend, within the United Kingdom of Great Britain
and Ireland, the Channel Islands, and Isle of Man, an Invention for
"NEW AND IMPROVED METHODS OR PROCESSES OF AND APPARATUS FOR STAINING OR
DYEING FIBROUS FILAMENTS WHEN IN THE RAW OR WHEN IN A PARTLY PREPARED
STATE," upon the condition (amongst others) that we, the said John Carter
Ramsden and James Marsland Tankard, our executors or administrators,
by an instrument in writing under our, or their, or one of their hands and
seals, should particularly describe and ascertain the nature of the said In-
vention, and in what manner the same was to be performed, and cause the
same to be filed in the Great Seal Patent Office within six calendár
months next and immediately after the date of the said Letters Patent.

page_text: NOW KNOW YE, that we, the said John Carter Ramsden and James
Marsland Tankard, do hereby declare the nature of our said Invention,
and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement, that is to
say :-
This Invention relates to new and improved methods or processes of
and apparatus for staining or dyeing fibrous filaments when in the raw
or when in a partly prepared state by utilizing and applying for one
portion of such processes the gases and vapours arising from the slow
combustion, decomposition, or distillation of the organic products of
ligneous origin or any other combustible (though by preference we use.
coal) either of animal or vegetable origin from which the different
hydrocarbon gases and volatile productions can be evolved during the
process of slow combustion or distillation, after the manner described by
us in a Provisional Specification filed in the Great Seal Patent Office on
the 30th day of November 1872, No. 3616, in which we describe that
process, the apparatus for carrying it into effect consisting of a receiver
into which the said gases are passed, which upon condensation effect the
staining or dyeing of velvets and all other woven fabrics; but in this case
the receivers in which the gases and vapours are condensed need simply
be air-tight chambers, and the fibrous filaments to be operated upon can
be hung or laid about within such receivers upon tables or on the floor,
but previous to placing these said fibrous filaments within the receivers
and subjecting them to. the influences exercised thereon by the deposit
arising from the condensation of the gases and vapours with which the
said receivers are charged, the said fibrous filaments are first saturated
either wholly or in part by some chemical solution, say a preparation of
acetate of lead dissolved in water. The object to be accomplished by
this part of the process is the more readily to effect a change of colour
in the fibrous filaments or in some portion thereof, namely, on that
portion which has been saturated with the solution just referred to, and
it will be found that where the deposit arising from the condensation of
the gases and vapours has come in contact with the acetate of lead a
chemical change is effected, the result of which is that a much better and
deeper colour can be obtained upon the said fibrous filaments than would
have been possible by the simple use of the gases and vapours alone.
In some cases it will be found advisable to dispense altogether with
the use of the said gases and vapours and the said receivers, and use as

page_text: an equivalent a substance possessing peculiar properties, namely, bi-
sulphide of carbon; this is one of the products evolved during the
decomposition or distillation of coal; it is likewise obtained whenever
sulphur comes in contact with red hot charcoal; it is a colourless liquid
and does not mix with water; it is very volatile and is a powerful sulphur
acid, and combines with the sulphide of lead, silver, and copper, and
forms insoluble compounds.
It will be found that the fibrous filaments after being immersed in the
preparation of lead in solution will upon the application of bi-sulphide of
carbon immediately assume a different colour, and this is by reason of
the chemical change which takes place whenever the two solutions come
in contact.
Having 'thus fully described the nature and particulars of this our
said Invention, we would have it understood that what we claim is, the
staining or dyeing of fibrous filaments in the manner and by the means
herein described.
In witness whereof, I, the said John Carter Ramsden for and on
behalf of myself and the said James Marsland Tankard, have
hereunto set my hand and seal, this Twenty-eighth day of May
in the year of our Lord, One thousand eight hundred and seventy-
three
Witness,
WALTER BRIERLEY,,
Tasker & Brierley,
Patent Agents,
JOHN CARTER RAMSDEN. (L.S.)
Halifax, Bradford, & Blackburn.