AN IMPROVED PREPARATION OR COMPOUND FOR SIZING AND DRESSING THREADS AND FABRICS
Year: 1868

page_text: LETTERS PATENT to Alexander Melville Clark, of 53, Chancery Lane,
in the County of Middlesex, Patent Agent, for the Invention of
"AN IMPROVED PREPARATION OR COMPOUND FOR SIZING AND DRESSING
THREADS AND FABRICS."-A communication from abroad by Pierre
Joseph Alexis Mandet, of 13, Boulevart St. Martin, Paris.
Sealed the 22nd May 1869, and dated the 26th November 1868.
PROVISIONAL SPECIFICATION left by the said Alexander Melville
Clark at the Office of the Commissioners. of Patents, with his
Petition, on the 26th November 1868.
I, ALEXANDER MELVILLE CLARK, of 53, Chancery Lane, in the
County of Middlesex, Patent Agent, do hereby declare the nature of the
said Invention for "AN IMPROVED PREPARATION OR COMPOUND FOR SIZING AND
DRESSING THREADS AND FABRICS," to be as follows:-
This Invention relates to an improved preparation or compound to be
used for sizing and dressing threads or fabrics, whether of a vegetable or
animal nature, such as cotton, flax, hemp, silk, wool, and others.

page_text: This preparation is formed by the combination or mixture of the
following substances in about the following proportions, without however
confining myself rigidly thereto :-
Gelatine
Dextrine
Sulphate of zinc
Glycerine
-
Chloride of calcium
Spermaceti
Phenic acid
Caustic soda
Syrup of fecula
Stearine
Starch
13 pounds.
8 pounds.
1 pound.
110 pounds.
1 ounces.
11 pounds.
1½ ounces.
3 ounces.
11 pounds.
4 pounds.
12 pounds.
These several substances when combined and mixed together in a
sufficient quantity of water. form a product of pasty consistency of a
white or yellowish color, varying according to the color of the substances
employed.
The materials are reduced to a pasty or gelatinous condition by
boiling in a suitable quanty of water and form an improved prepara-
tion which I term glycerocolle, applicable for the purposes above
mentioned.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Alexander Melville Clark in the Great Seal Patent
Office on the 22nd May 1869.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ALEXANDER
MELVILLE CLARK, of 53, Chancery Lane, in the County of Middlesex,
Patent Agent, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-sixth day of November, in the
year of our Lord One thousand eight hundred and sixty-eight, in the
thirty-second year of Her reign, did, for Herself, Her heirs and suc-
cessors, give and grant unto me, the said Alexander Melville Clark,
Her special licence that I, the said Alexander Melville Clark, my
executors, administrators, and assigns, or such others as I, the said

page_text: Alexander Melville Clark, my 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 "AN IMPROVED PREPARATION OR COMPOUND FOR
SIZING AND DRESSING THREADS AND FABRICS," a communication to me from
abroad by Pierre Joseph Alexis Mandet, of 13, Boulevart St. Martin,
Paris, upon the condition (amongst others) that I, the said Alexander
Melville Clark, my executors or administrators, by an instrument in
writing under my, or their, or one of their hands and seals, should
particularly describe and ascertain the nature of the said Inven-
tion, 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
calendar months next and immediately after the date of the said Letters
Patent.
NOW KNOW YE, that I, the said Alexander Melville Clark, 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 (that is to say):
This Invention relates to an improved preparation or compound to be
used for sizing and dressing threads, yarns, or fabrics, whether of a
vegetable or animal nature, such as cotton, flax, hemp, silk, wool, and
others.
This preparation is formed by the combination or mixture of the
following substances in about the following proportions, without however
confining myself rigidly thereto :-
.
Gelatine
Dextrine
Sulphate of zinc
Glycerine
Chloride of calcium
Spermaceti
Phenic acid
13 pounds.
8 pounds.
1 pound.
110 pounds.
1 ounces..
11 pounds.
1 ounces.
3 ounces.
Caustic soda
Syrup of fecula
11 pounds.
Stearine
4 pounds.
Starch
12 pounds.

page_text: These several substances when combined are reduced to a pasty or
gelatinous condition by boiling in a suitable quantity of water (about
twenty-eight pounds in weight), and form a product of a white or
yellowish color, varying according to the color of the substances
employed.
The proportions of the ingredients may be varied according to the
degree of heat or moisture of the climate in which the compound is to
be used; thus in this country (England), where the climate is damper
than that of France, a firmer or stiffer dressing is required for preparing
fabrics, consequently the proportions of starch and dextrine should be
increased and the proportion of spermaceti diminished.
I also reserve the right of modifying the constitution of the improved
compound, for example, soap from its firmness may be used with
advantage in lieu of the syrup of fecula, and in this case the amount of
chloride of calcum would be augmented as the soap tends to partially
decompose the salt of lime. "Fucus crispus" may also be introduced
into the compound, in which case it would be preferable to omit the
sulphate of zinc, as said salt is liable to lessen the adhesive property of
the "fucus crispus," which latter is introduced for the purpose of
reducing the natural crudeness of the starch, and with the aid of the
gluten to render the preparation more homogeneous.
The following formula gives the proportions I prefer of the several
ingredients of the compounds modified in the
indicated :-
manner
above
Glycerine
Gelatine
Fine starch
Dextrine
Gluten
-
Spermaceti
110 pounds.
13 pounds.
22 pounds.
11 pounds.
4 pounds.
6 pounds.
Chloride of calcium
4 pounds.
2 pounds.
2 pounds.
4 pounds.
Soap
-
Caustic soda (liquid)
"Fucus crispus "
adding a sufficient quantity of water.
Having described the nature of this Invention and the manner of
performing the same, I declare that what I claim as the Invention to
be protected by the herein-before in part recited Letters Patent is,-

page_text: The improved preparation or compound, herein-before described, for
sizing and dressing threads, yarns, and fabrics, said compound having a
pasty or glutinous consistency, and which I term "glycericolle."
I also claim modifying the combination of ingredients of which said
compound is composed to suit the exigencies of climate, in the manner
herein-before described.
In witness whereof, I, the said Alexander Melville Clark, have
hereunto set my hand and seal, this Twentieth day of May,
in the year of our Lord One thousand eight hundred and sixty-
eight.
Witness,
JAMES DAISH,
53, Chancery Lane,
London.
A. M. CLARK. (L.S.)