Improved Means of Applying Disinfectants.
Year: 1893

page_text: Date of Application, 22nd Sept., 1893
Complete Specification Left, 7th June, 1894-Accepted, 7th July, 1894
PROVISIONAL SPECIFICATION.
Improved Means of Applying Disinfectants.
We ROBERT STEWART, Manager Chemical Works, Warton Road, Stratford,
Essex, ARTHUR BOAKE, FREDERICK GEORGE ADAIR ROBERTS and EDMOND
JOHNSON BOAKE, Manufacturing Chemists, Warton Road, Stratford, Essex, do
hereby declare the nature of this invention to be as follows:-
Our invention consists in improvements in the means of applying disinfectants
for the purpose of disinfecting or deodorising noxious gaseous emanations in order
to obtain a continuous stream or evolution of the disinfectant so as to attack the
foul gases as they are given off from a sewer outlet or manhole, or other position
where a current or continuous evolution of noxious gases occurs.
To this end we take advantage of the character of certain salts, e.g. chloride of
calcium, ferric or ferrous chloride, acid sulphates of soda etc., etc., of deliquescing
and liquefying slowly by the absorption of moisture from the air. For the purpose
of our invention we mix with the deliquescent salt any suitable proportion of a
disinfectant such as bleaching powder, carbolic acid, manganate or permanganate
of soda or potash, or a sulphite of an alkali or of an alkaline earth, or an admixture
of any two or more of the above, or any other disinfectant.
The solution formed by the deliquescing of the salt absorbs the disinfectant
immediately contiguous, and as it flows away fresh surfaces are exposed, for the
continuation of the process.
In order to render the distribution of the disinfectant slow and gradual the
mixture is compressed info slabs, blocks or briquettes, of any suitable size or
form.
In the case of volatile disinfectants being applied, the gradual disintegration of
the briquette affords a means of insuring a continuous diffusion of such bodies over
a prolonged period.
Dated this 21st day of September 1893.
ROBERT STEWART.
F. G. ADAIR ROBERTS.
ARTHUR BOAKE.
E. J. BOAKE.
COMPLETE SPECIFICATION.
Improved Means of Applying Disinfectants.
We ROBERT STEWART, Manager Chemical Works Warton Road, Stratford,
Essex, ARTHUR BOAKE, FREDERICK GEORGE ADAIR ROBERTS and EDMOND
JOHNSON BOAKE, Manufacturing Chemists, Warton Road, Stratford, Essex, 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:-
Our invention consists in improvements in applying disinfectants for the purpose
of disinfecting or deodorising noxious gaseous emanations in such a way as to
obtain automatically a gradual and continuous stream or evolution of the
disinfectant or deodorant so as to attack the foul gases as they are given off from a
sewer outlet or manhole, or other position where a current or continuous evolution
of noxious gases occurs.

page_text: To this end we take advantage of the property of certain salts, e.g. calcium
chloride, magnesium chloride ferrous or ferric chloride, acid sulphates of soda etc.
etc. of deliquescing and liquefying slowly by the absorption of moisture from
the air.
For the purpose of our invention we mix with the deliquescent salt any suitable
proportion of a disinfectant such as bleaching powder, carbolic acid, manganate or
permanganate of soda or potash, or a sulphite of an alkali or of an alkaline earth, or an
admixture of any two or more of the above, or any other disinfectant.
The solution formed by the deliquescing of the salt contains the disinfectant in
the proportion in which it was added to the deliquescent salt and as it flows away
fresh surfaces are exposed for the continuation of the process.
In order to render the distribution of the disinfectant slow and gradual the
mixture is compressed or moulded into slabs, blocks or briquettes, of any suitable
size or form.
In the case of volatile disinfectants being applied the gradual disintegration of
the briquette affords a means of insuring a continuous diffusion of such bodies over
a prolonged period.
In applying the briquettes to sewer outlets or manholes we prefer to suspend in
such outlets near the surface a basket or grating supporting a layer of coke or
other porus material. The briquettes are placed upon the coke which becomes
saturated with the solution trickling from the briquette whereby a larger surface
is exposed to the gases as they ascend through the interstices of the coke.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
1. The employment of deliquescent salts in conjunction with disinfectants as a
means of diffusing such disinfectants.
2. The employment of mixtures of deliquescent salts and disinfectants in the form
of briquettes.
Dated this Fourth day of June 1801
ROBERT STEWART.
A. BOAKE.
F. G. ADAIR ROBERTS.
E. J. BOAKE.