IMPROVEMENTS IN PRODUCING PROVISIONAL SPECIFICATION
Year: 1855

page_text: LETTERS PATENT to George Senior Tolson, Robert Henry Tolson, and
Joseph Senior Tolson, all of Dalton, in the Parish of Kirkheaton, in the
County of York, Manufacturers, and Thomas Irving, of Mold Green, in
Dalton aforesaid, Dyer, for the Invention of "IMPROVEMENTS IN PRODUCING
PROVISIONAL SPECIFICATION left by the said George Senior Tolson,
Robert Henry Tolson, Joseph Senior Tolson, and Thomas Irving, at the
Office of the Commissioners of Patents, with their Petition, on the 20th
November 1855.
We, GEORGE SENIOR TOLSON, ROBERT HENRY TOLSON, and JOSEPH SENIOR
TOLSON, all of Dalton, in the Parish of Kirkheaton, in the County of York,
Manufacturers, and THOMAS IRVING, of Mold Green, in Dalton aforesaid,
Dyer, do hereby declare the nature of the Invention for "IMPROVEMENTS IN
PRODUCING METALLIC LUSTRE TO YARNS AND FABRICS" to be as follows:-
This Invention consists of giving a metallic lustre to yarns and fabrics, by
boiling them in solutions of sulphate or oxide of copper, or a salt or oxide of
lead, zinc, or silver, before dyeing such yarns or fabrics, and then to dye them;
the metallic lustre being subsequently obtained by the use of hyposulphate of
soda, potash, or ammonia.

page_text: SPECIFICATION filed in pursuance of the conditions of the Letters Patent
and of an Order of the Lord Chancellor, by the said George Senior
Tolson, Robert Henry Tolson, Joseph Senior Tolson, and Thomas Irving
in the Great Seal Patent Office on the 10th June 1856.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, GEORGE
SENIOR TOLSON, ROBERT HENRY TOLSON, and JOSEPH SENIOR TOLSON, all of
Dalton, in the Parish of Kirkheaton, in the County of York, Manufacturers,
and THOMAS IRVING, of Mold Green, in Dalton aforesaid, Dyer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twentieth day of November, in the year of our Lord
One thousand eight hundred and fifty-five, in the nineteenth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto us, the
said George Senior Tolson, Robert Henry Tolson, Joseph Senior Tolson, and
Thomas Irving, Her special licence that we, the said George Senior Tolson,
Robert Henry Tolson, Joseph Senior Tolson, and Thomas Irving, our execu-
tors, administrators, and assigns, or such others as we, the said George Senior
Tolson, Robert Henry Tolson, Joseph Senior Tolson, and Thomas Irving, our
executors, administrators, and assigns, should at 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 "IMPROVEMENTS IN PRODUCING METALLIC LUSTRE
TO YARNS AND FABRICS," (a communication,) upon the condition (amongst others)
that we, the said George Senior Tolson, Robert Henry Tolson, Joseph Senior
Tolson, and Thomas Irving, our executors or administrators, by an instrument
in writing under our or their hands and seals, or under the hand and seal
of one of us or them, should particularly describe and ascertain the nature of
the said Invention, and in what manner the same was to be performed, and
cause the same to be filed in the Great Seal Patent Office on or before the
Fourteenth day of June, One thousand eight hundred and fifty-six.
NOW KNOW YE, that I, the said Thomas Irving, on behalf of myself and
the said Georgo Senior Tolson, Robert Henry Tolson, and Joseph Senior
Tolson, do hereby declare the nature of the said Invention, and in what
manner the same is to be performed, to be particularly described and
ascertained in and by the following statement thereof, that is to say :-
Our Invention consists of giving a metallic lustre to yarns and fabrics, by
boiling them in solutions of sulphate or oxide of copper, or a salt or oxide of
lead, zinc, or silver, before dyeing such yarns or fabrics, and then to dye them;

page_text: the metallic lustre being subsequently obtained by the use of hyposulphite
(erroneously written "hyposulphate " in the Provisional Specification, but was
corrected by Dr. Miller, to whom the same was referred by the Attorney
General,) of soda, potash, or ammonia.
Having thus stated the nature of the said Invention, we will proceed more
fully to describo the manner of performing the same.
The process of preparing and dyeing yarns and fabrics, when intending to
finish them according to this Invention, may, as heretofore, be greatly varied,
and to such process of preparing and dyeing we make no claim when it is
not succeeded by the use of hyposulphite of soda, potash, or ammonia. We
would state that the Invention is more peculiarly applicable to yarns and fabrics
of wool, and of mixtures of wool and cotton. When dyeing blacks, browns,
and maroons, supposing we are about to dye and finish a piece of fabric, or
a quantity of yarn weighing about 4 lbs., we proceed as follows:-We boil the
fabric or yarns for about half an hour in a bath composed of lb. of sulphate
of copper, 4 ozs. of bitartrate of potash (tartar), and 40 gallons of water. We
then wash the fabric or yarns in cold water, and dye in the usual manner,
preferring, however, when dyeing blacks to use ebony with logwood, say, in the
proportions of 3 lbs. of logwood to 1 lb of ebony. The fabric or yarns having
been dyed, washed, and dried, we immerse the same for about 10 to 15
minutes in a bath composed of about 40 gallons of water and 4 ozs. of sulphate
of copper dissolved in about a pint of ammonia, using the bath at a temperature
of from 150° to 190° of Fahrenheit. The fabrics or yarns having been washed,
are then immersed in a bath composed of about one pint of hyposulphite of
sola, potash, or ammonia (of a strength of 40° of Twaddle) for about 10 to 15
minutes. The fabric or yarns are then washed and finished in the ordinary
manner.
When dyeing drabs, lavenders, and such like colors, we use a salt or oxide of
lead, zinc, or silver. We would remark, that if an oxide of a metal in place
of a soluble salt be used, then it is to be got into solution by the aid of acid,
as is well understood. If lead be used, we prefer acetate, and we use it at the
rate of about lb. for the weight of fabric or yarns above mentioned in about
40 gallons of water, and we boil the fabric or yarns therein for about half an
hour, then wash and dye in the ordinary manner, then wash and subject the
fabric or yarns to a bath of hyposulphite of soda, potash, or ammonia, as above
described, then wash and finish in the ordinary manner.
If zinc be used, we
dissolve about lb. of sulphate of zinc in 40 gallons of water, and boil a like
quantity of yarn or fabric therein for about half an hour, wash and dye the
same, then subject the fabric or yarns to a bath of hyposulphite of soda,

page_text: potash, or ammonia, as above described, then wash and finish, as heretofore.
If silver be used, the fabrics or yarns are prepared in a bath of sulphate of
copper, as first described for blacks, and the fabric or yarn having been
washed, dyed, and dried in the usual manner, the same is then immersed in a
bath (composed of about 40 gallons of water, at a temperature of about 120° to
180° of Fahrenheit, having dissolved therein about 180 grains or upwards of
nitrate of silver) for about 10 to 15 minutes. The fabric or yarn is to be
subjected to the hyposulphite bath, and then to be washed and finished in tho
usual manner. Silver may also be used for blacks, in which case the fabrics
or yarns are prepared in a bath of sulphate of copper, then dyed and dried,
then in a bath of ammonia sulphate of copper, as first above described, then
in a bath of nitrate of silver, as above explained, and then in a hyposulphite
bath, by which a grey lustre is obtained. We would state that if hyposulphite
of ammonia be used a bluish shade is produced.
Having thus described the nature of the Invention, and manner of perform-
ing the same, we would have it understood that what we claim is, the use of
byposulphite of soda, potash, or ammonia, as above described.
In witness whereof, I, the said Thomas Irving, have hereunto set my
hand and seal, this Ninth day of June, in the year of our Lord One
thousand eight hundred and fifty-six.
THOMAS IRVING. (L.S.)
Witness,
D°. STAFFORD,
Clerk to Messrs. Jacomb & Son, Sol",
Huddersfield.