Year: 1895

page_text: Date of Application, 22nd Oct., 1895
Complete Specification Left, 18th July, 1896-Accepted 5th Sept., 1896
EBENEZER WILLIAM ROWSELL CHARLES STANSFELD both of Clifford
Street Works Clifford Street, Oxford Road Manchester Manufacturing Chemists
do hereby declare the nature of this invention to be as follows:
It is a crystal carbolic disinfectant and deodorant powder, having for its base
refined napthaline to which is added in a liquid state crysilic or carbolic acid, or
crude carbolic acid.
This combination, when cold, is ground and mixed with French chalk or other
substances of a like nature, and crystals in a suitable proportion, and we claim.that
the combination of cystals with the other ingredients enables the user or users to
at once detect (apart from the smell) where it has been employed.
The crystals are obtained directly from the napthaline by the process of
sublimation.
Crysilic or carbolic acid is a substance obtained by the distillation of coal tar
and is a compound of carbon hydrogen and oxygen.
Dated this 21st day of October 1895.
EBENEZER WILLIAM ROWSELL.
CHARLES STANSFELD.
4
We, EBENEZER WILLIAM ROWSELL and CHARLES STANSFELD both of
Clifford Street Works, Clifford Street, Oxford Road, Manchester, in the County of
Lancashire, Manufacturing Chemists, 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 relates to an improved deodorant ou disinfectant powder, that has
for its object the production of a compound that will retain its deodorizing and
disinfecting properties or power for a greater length of time than any hitherto
produced at the same or greater cost of manufacture.
In the manufacture of deodorant or disinfectant powders prior to our said inven-
tion it has been customary to combine cresylic or carbolic acid (erroneously spelt
crysilie in our Provisional Specification) in a liquid form, with a powder base of
an earthy character, such for instance as chalk, whiting, tea-alba and the like,
but by reason of such bases not possessing any deodorant or disinfectant properties,
they have simply seived as an agent for the absorbtion of the carbolic acid, and we
have discovered by chemical research that a more powerful and lasting deodorant
or disinfectant is to be produced by employing as a base, a whitish crystalizable
compound produced by the distillation of coal tai, and commercially known as
napthaline," (sometimes spelt napthalin on napthalene) in combination with
cresylic or cai bolic acid, and chalk, whiting or the like in suitable proportions.
013

page_text: We wish it understood that the formula hereinafter given is substantially that
which we prefer to employ, and found in practice to be the most suitable for
general use as a deodorant or disinfectant, but we do not confine cuiselves to the
exact proportions stated, but may (within reasonable limits) vary these, for
commercial and other reasons, without departing from the principle involved.
In the preparation of a ton or 2240 lbs of the improved deodorant or disinfectant
compound according to our invention, we prefer to employ as a base 1450 lbs. or
thereabouts of refined napthaline, which we liquify in a suitable vessel by the
application of heat, and when such liquification is completed, we add thereto
336 lbs. or thereabouts of liquid cresylic or carbolic acid, and a sufficiency of any
suitable coloring matter to give thereto the desired or most approved tint, when
the whole may be run off into suitable shallow vessels to cool and solidify, and
when quite cold we then pass this compound through a crushing mill and reduce
the same to a coarse powder, to which we then add (in suitable proportious to give
a crystaline appearance thereto) crystals that have been previously obtained from
napthaline, by a process of sublimation in a suitable zinc chamber fitted for the
purpose, but which said chamber forms no part of our present invention.
To the compound thus prepared we then add 450 lbs. or thereabouts of chalk,
whiting, or other suitable material of a like nature, to give friability to the whole,
which may then be passed through a powerful disintegrator, when the process is
completed.
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.
1st. In an improved deodorant or disinfectant powder, the combination of
napthaline and cresylic or carbolic acid, and chalk, whiting or the like, by the
process herein described, and in the proportions stated or thereabouts, substantially
as Bet forth.
2nd. In an improved deodorant or disinfectant powder, the employment of
napthaline as a base, in combination with ciesylic or carbolic acid and coloring
matter, and napthaliue crystals produced by sublimation with the subsequent
addition of chalk, whiting or the like, the whole connected and combined in the
manner set forth, and in the proportious stated or thereabouts, substantially as and
for the purposes herein described.
Dated this 19th das of Jul 1906
GEO. THOS. HYDE,
1 Broad Street Buildings, London, E.C., Agent for the Applicants.