IMPROVEMENTS IN THE PREPARATION OF BLACKLEAD FOR POLISHING METALS AND FOR OTHER USES
Year: 1871

page_text: LETTERS PATENT to Henry Sherman Sanderson, of the Victoria
Smyrna Emery and Blacklead Mills, York Road, Lambeth, in
the County of Surrey, for the Invention of "IMPROVEMENTS IN
THE PREPARATION OF BLACKLEAD FOR POLISHING METALS AND FOR OTHER
USES."
Scaled the 15th September 1871, and dated the 12th April 1871.
PROVISIONAL SPECIFICATION left by the said Henry Sherman
Sanderson at the Office of the Commissioners of Patents, with his
Petition, on the 12th April 1871.
I, HENRY SHERMAN SANDERSON, of the Victoria Smyrna Emery
and Blacklead Mills, York Road, Lambeth, in the County of Surrey,
do hereby declare the nature of the said Invention for "IMPROVEMENTS
IN THE PREPARATION OF BLACKLEAD FOR POLISHING METALS AND FOR OTHER USES,"
to be as follows:-
Blacklead employed for polishing purposes is usually sold either in
powder or in block, and a solution thercof for use is obtained by the
admixture therewith of water or other liquid, but in such use much

page_text: irregularity exists in the degree of fluidity obtained, and as a consequence
considerable waste is experienced.
The object of the Invention is to remedy these evils by preparing
blacklead in a fluid state ready for use.
The composition I adopt consists of blacklead such as is used for
polishing stoves and for other uses combined with turpentine, water,
and sugar or saccharine matter, and the proportions which I have found
to answer well are to each pound by weight of the blacklead 1 gill of
turpentine, 1 gill of water, and 1 oz. of sugar, but these proportions
may be varied, and in some cases all the ingredients are not necessary.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Henry Sherman Sanderson in the Great Seal Patent
Office on the 11th October 1871.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HENRY
SHERMAN SANDERSON, of the Victoria Smyrna Emery and Blacklead
Mills, York Road, Lambeth, in the County of Surrey, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing dato the Twelfth day of April, in the year of
our Lord One thousand cight hundred and seventy-one, in the thirty-
fourth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Henry Sherman Sanderson, Her special
licence that I, the said Henry Sherman Sanderson, my executors, admi-
nistrators, and assigns, or such others as I, the said Henry Sherman
Sanderson, my executors, administrators, and assigns, should at any time
agree with, and no others, from time to time and at all times there-
after 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 THE PREPARATION OF BLACKLEAD FOR POLISHING METALS
AND FOR OTHER USES," upon the condition (amongst others) that I, the said
Henry Sherman Sanderson, my executors or administrators, by an instru-
ment in writing under my, or their, or one of their hands and scals,
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 Scal Patent Office within six

page_text: calendar months next and immediately after the date of the said Letters
Patent.
NOW KNOW YE, that I, the said Henry Sherman Sanderson, do
hereby declare the nature of the said Invention, and in what manner
the same is to be performed, to be particularly described and ascer-
tained in and by the following statement thereof, that is to say:-
Blacklead employed for polishing purposes is usually sold either in
powder or in block, and a solution thereof for use is obtained by the
admixture therewith of water or other liquid, but in such use much
irregularity exists in the degree of fluidity obtained, and as a consequence
considerable waste is experienced.
The object of the Invention is to remedy these evils by preparing
blacklead in a fluid state so that it may be ready for immediate use.
My Invention consists in the combination of finely powdered black-
lead such as is used for polishing stoves and for other uses with tur-
pentine, water, and sugar or saccharine matter, or of either of such
matters in addition to the water and the blacklead.
In carrying out my improvements the proportions which I have found
to answer well are to each pound by weight of the finest powdered
blacklead one gill of turpentine, one gill of water, and one ounce of
sugar, but these proportions will be varied to the quality of the powdered
blacklead employed.
Having thus described my Invention, and means which I adopt in
carrying the same into effect, I would have it understood that what I
claim is, the preparation of blacklead in a fluid state for the polishing of
metals and other uses, substantially as described.
In witness whereof, I, the said Henry Sherman Sanderson, have
hereunto set my hand and seal, this Eleventh day of October,
in the year of our Lord One thousand eight hundred and seventy-