Improvements in or appertaining to Disinfectants for Water Closets and other places or thing's where Water is used.
Year: 1891

page_text: Date of Application, 5th Aug., 1891
Complete Specification Left, 5th May, 1892-Accepted, 5th Aug., 1892
PROVISIONAL SPECIFICATION.
Improvements in or appertaining to Disinfectants for Water Closets
and other places or thing's where Water is used.
I, HENRY BELCHER THORNTON of 12 and 14, Paradise Street, in the City.
of Liverpool, Analytical Chemist, do hereby declare the nature of this invention
to be as follows:-
This invention has for its principal object a method of disinfecting water closets
and the like, whereby a somewhat definite and limited amount of disinfectant is
passed through with the water at each discharge. I have found that, if chloride of
lime, permanganate of potash, and other disinfectants be thoroughly mixed with
paraffin wax, so that there is a very slight film of the said wax permeating through
them and covering their surface, they only slowly dissolve out.
In like manner, other substances than paraffin wax will be found applicable for
the object which I have in view, such substances, for instance, as sulphate of
calcium (or any cement forming substance), pumice stone, etcetera, which can retain
the disinfectant (until a flush comes and carries away a portion) without pre-
judicially affecting its qualities.
Acting on this idea, I form balls, squares or other suitable shapes of the
chemical with a small addition of paraffin wax or its equivalent as above mentioned,
intimately blending the latter with the former by melting, dissolving, impregnation,
or other means.
These shapes, where the discharges are frequent and of regular intervals, can be
placed in the cistern itself.
Dated 11+1 ...
must 1001
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Patent Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in or appertaining to Disinfectants for Water Closets
and other places or things where Water is used.
I, HENRY BELCHER THORNTON, of 12 and 14 Paradise Street in the City
of Liverpool, Analytical 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 for its principal object a method of disinfecting water closets
and the like, whereby a somewhat definite and limited amount of disinfectant is
passed through with the water at each discharge. I have found that, if chloride
of lime, (chlorinated lime), permanganate of potash, and other disinfectants, either
separate or combined, be thoroughly mixed with paraffin wax so that there is a
very slight filin of the said wax permeating through them and covering their
surface, they only slowly dissolve out.
In like manner, other substances than paraffin wax will be found applicable for
the object which I have in view, such substances, for instance, as sulphate of
calcium (or any cement forming substance), pumice stone, etcetera, which can retain
the disinfectant (until a flush comes and carries away a portion) without pre-
judicially affecting its qualities.
Acting on this idea, 1 form balls, squares or other suitable shapes of the chemical
with a small addition of parafin wax or its equivalent as above mentioned,

page_text: intimately blending the latter with the former by melting, dissolving, impregnation,
or other means.
In carrying out the manufacture of disinfectant tablets, blocks or the like
according to my invention, the proportion or quantity of the materials or substances
employed, and hereinafter specified, may be varied, within reasonable limits as
circumstances may suggest, without materially affecting the invention, but I prefer
to carry out the manufacture in the following way and I believe, from experience,
such will be found to produce the best results.
I take a sufficient quantity of permanganate of potash, chloride of lime
(chlorinated lime) or other disinfectant, the quantity of the disinfectant must in
each case be determined by the disinfecting strength it is desired the finished
tablet, etcetera, should ultimately have, and, to this disinfectant, I add preferably
about 1 pound of paraffin wax, thoroughly mixing the two together by any suitable
means under the application of gentle heat, say about 85 degrees centigrade.
This mixture is then carefully comminuted or powdered down, being, if necessary,
previously allowed to stand so as to become cold, when it can be more readily
powdered down.
When the paraffin wax in the foregoing mixture is replaced by other substances,
such as sulphate of calcium, pumice stone, etcetera, the amount of such to be
employed will also be about 1 pound, but may be varied according to circumstances
and as practice will show best.
in any
When the foregoing mixture has been formed, it is then moistened with a
suitable liquid, so that it can be made or worked up,
suitable way, either
by the hand alone or by aid of suitable machines, into any desired shape or form,
such as a tablet, block, lozenge, cake or the like.
When the tablets, blocks or the like are in use where the discharges of water or
other liquid are frequent and of regular intervals, they can be placed in the cistern
or other receptacle containing the water or liquid.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is:-
1. The improvements in disinfectants for water closets and other places or things
where water is used, consisting in a disinfectant preparation composed of chloride
of lime, permanganate of potash or other disinfectant and paraffin wax, or a
substitute therefor such as sulphate of calcium or any cement-forming substance, or
pumice stone, substantially as herein before described.
2. The improvements in or appertaining to disinfectants for water closets and
other places or things where water is used, consisting in a disinfectant, the
composition and mode of manufacture of which are substantially as hereinbefore
described.
WM. P. THOMPSON & Co.,
Of Liverpool, Manchester, Nottingham, and London, Patent Agents.