IM- PROVEMENTS IN THE MANUFACTURE OF DISINFECTANTS, APPLICABLE ALSO TO THE PRESERVATION OF MANURES
Year: 1869

page_text: LETTERS PATENT to James Mudie Spence, of Manchester, in the
County of Lancaster, Manufacturing Chemist, and John Berger
Spence, of the same Place, Merchant, for the Invention of "IM-
PROVEMENTS IN THE MANUFACTURE OF DISINFECTANTS, APPLICABLE ALSO TO
THE PRESERVATION OF MANURES."
Sealed the 22nd March 1870, and dated the 23rd September 1869.
PROVISIONAL SPECIFICATION left by the said James Mudie Spence
and John Berger Spence at the Office of the Commissioners of
Patents, with their Petition, on the 23rd September 1869.
We, JAMES MUDIE SPENCE, of Manchester, in the County of Lan-
caster, Manufacturing Chemist, and JOHN BERGER SPENCE, of the same
Place, Merchant, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN THE MANUFACTURE OF DISINFECTANTS, APPLICABLE. ALSO, TO
THE PRESERVATION OF MANURES," to be as follows :—
Our Invention relates to the use as a disinfectant of salts of iron
prepared in a certain manner. For this purpose we take proto com-
pounds of iron and treat them with sulphuric or muriatic acid. Such

page_text: compounds as aforesaid may be in the native state, as in the cases of the
Cleveland and black band ores, but for economy we prefer to use the
slag of the iron manufacture commonly called tap cinder; or that derived
from the regulus of copper smelting or similar manufacturing processes.
Such substances as aforesaid we propose to disintegrate and then to treat
them with sulphuric or muriatic acid after the ordinary methods of
chemical operations, and the result will be sulphate or muriate of iron
in a suitable condition either by itself or in combination with other sub-
stances to be used as a disinfectant, and it may be applied either in a
solid or fluid state.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said James Mudie Spence and John Berger Spence in
the Great Seal Patent Office on the 23rd March 1870.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, JAMES
MUDIE SPENCE, of. Manchester, in the County of Lancaster, Manu-
facturing Chemist, and JOHN BERGER SPENCE, of the same Place,
Merchant, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-third day of September, in the
year of our Lord One thousand eight hundred and sixty-nine, in the
thirty-third year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto us, the said James Mudie Spence and John Berger
Spence, Her special license that we, the said James Mudie Spence and
John Berger Spence, our executors, administrators, and assigns, or such
others as we, the said James Mudie Spence and John Berger Spence,
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 THE MANUFACTURE OF DISINFECTANTS, APPLICABLE ALSO TO THE PRESERVATION
OF MANURES," upon the condition, amongst others, that we, the said
James Mudie Spence and John Berger Spence, by an instrument in

page_text: writing under our hands and seals (or under the hand and seal of one of
us) 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 calendar
months next and immediately after the date of the said. Lettors
Patent.
NOW KNOW YE, that I, the said John Berger Spence, 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 :-
Our Invention relates to the use as disinfectants of salts of iron
prepared in a peculiar manner, for which purpose we take proto com-
pounds of iron, and treat them with sulphuric or muriatic acid, by
which means we produce sulphate or muriate of iron in a dry powdery
condition well suited to be used as a disinfectant. The compound of
iron which we prefer to use for the sake of economy is the slag of the
iron manufacture commonly called tap cinder or that derived from the
regulus of copper smelting or similar manufacturing process, and which
are proto-silicates of iron. The aforesaid slag is broken up or ground
by any ordinary machinery, and to it is then added a quantity of
sulphuric or muriatic acid, and the whole is well stirred together, and
the result will be either sulphate or muriate of iron, which although
when dry is caked together is in a loose friable condition, and may
readily be ground into particles of any required degree of fineness. The
quantity of acid to be used will of course depend upon its strength, but
the said quantity for effecting a saturation of the iron will readily be
ascertained by experience. We have above spoken of slags which are
silicates of iron as used for carrying out our Invention, but we also
employ other substances in a native state, and of these we use the proto-
carbonates, such as the Cleveland and black band ores, and treat them
with sulphuric or muriatic acid as aforesaid. We have spoken of the
produce of our Invention as being dried and ground. It: may be used
in that state as a disinfectant, or it may be dissolved in water and then
applied to the said purpose.
We also use the aforesaid substances prepared according to our
Invention for the preservation or fixing of manures, to which it may be
added in a dry or dissolved condition, and by such treatment the
ammonia of the manure is preserved.

page_text: Instead of using the produce of our Invention separately for the
aforesaid purposes it may be mixed with earth, saw-dust, or other sub-
stances.
Having thus described and ascertained the nature of our said Inven-
tion, and the manner in which the same is to be performed, we desire it
to be understood that we claim as secured to us under the above in part
recited Letters Patent, and for the purposes above set forth, the use of
sulphate and muriate of iron produced from the proto-silicates and
proto-carbonates of iron, substantially as above described.
In witness whereof, I, the said John Berger Spence, have here-
unto set my hand and seal, this Twenty-second day of March,
in the year of our Lord One thousand eight hundred and
seventy.
J. BERGER SPENCE. (L.S.)