An Improved Deodorant and Disinfectant.
Year: 1886

page_text: Date of Application, 24th May, 1886.
Complete Left, 14th Feb., 1887.
Complete Accepted, 15th Mar., 1887.
PROVISIONAL SPECIFICATION.
An Improved Deodorant and Disinfectant.
I HENRY MALCOLM CALDWELL of Sydney in the Colony of New South Wales,
Manufacturing Chemist do hereby declare the nature of this invention to be as
follows:-
This invention has been devised in order to produce an effective and economical
deodorant and disinfectant, especially useful for treating night soil and such like
noxious matters but applicable also for flushing sewers drains, &c. It will destroy
foul smells and infectious germs of all kinds.
This improved deodorant and disinfectant consists of a peculiar combination of ingre-
dients prepared in a peculiar way, thus. I boil say seven hundred weight of sulphate
of iron, forty pounds of per oxide of manganese and six pounds of oil of eucalyptus
in four hundred gallons of water for say three hours. This produces a liquid which
is useful as a deodorant but has no disinfecting properties.
I then take four tons of caustic soda and one ton of per oxide of manganese and
intimately mix them. This mixture I then expose to a dull red heat for say forty
eight hours and then moisten it with water after which the latter is evaporated by heat.
When this second preparation is dry and cold it is added to say one half of the
deodorising liquid first produced and the resultant fluid is my improved deodorant
and disinfectant.
In use I treat night soil before disturbance or removal from cesspits, &c., with my
improved deodorant and disinfectant, but for flushing sewers drains, &c., Í dilute it
with water according to the "strength" of the matters to be disinfected say for ordinary
purposes I take equal quantities of the prepared fluid and of water.
It is to be understood that I do not claim to have discovered the deodorising
properties of any of the materials which I use nor do I claim the use of any of these
ingredients separately and alone and on the other hand I do not confine myself to the
exact proportions in which these ingredients may be used so long as the nature of my
invention be retained.
Dated at Sydney in the Colony of New South Wales this thirteenth day of
April one thousand eight hundred and eighty six.

page_text: I HENRY MALCOLM CALDWELL of Sydney in the Colony of New South Wales Manu-
facturing Chemist do hereby declare the nature of this invention and in what manner
the same is to be performed to be particularly described and ascertained in and by the
following statement :-
This invention has been devised in order to produce an effective and economical
deodorant and disinfectant especially useful for treating night-soil and such like
noxious matters but applicable also for flushing sewers drains, &c. It will destroy
foul smells and infectious germs of all kinds.
This improved deodorant and disinfectant consists of a peculiar combination of
ingredients prepared in a peculiar way thus-I boil say seven hundred weight
of sulphate of iron, forty pounds of per-oxide of manganese in four hundred gallons of
water for say three hours and add six pounds of oil of eucalyptus while the mixture
is yet warm. This produces a liquid which is useful as a deodorant but has no dis-
infecting properties.
I then take four tons of caustic soda and one ton of per-oxide of manganese and
intimately mix them. This mixture I then expose to a dull red heat for say forty
eight hours and then moisten it with water after which the latter is evaporated by heat.
When this second preparation is dry and cold it is added to say one half of the
deodorising liquid first produced and the resultant fluid is my improved deodorant and
disinfectant.
In use I treat night soil before disturbance or removal from cesspits &c. with my
improved deodorant and disinfectant but for flushing sewers drains &c. I dilute it with
water according to the "strength" of the matters to be disinfected say for ordinary
purposes I take equal quantities of the prepared fluid and of water.
It is to be understood that I do not claim to have discovered the deodorising
properties of any of the materials which I use in my mixture, nor do I claim the use
of any of these ingredients separately and alone and on the other hand I do not
confine myself to the exact proportions in which these ingredients may be used so
long as the nature of my invention be retained.
Having now particularly described and ascertained the nature of my said invention
and in what manner the same is to be performed I declare that what I claim is:
The combination and admixture of materials prepared as I have described and which
together form my improved deodorant and disinfectant substantially as herein described
and explained.