Apparatus for the Production of Ozone.
Year: 1888

page_text: Date of Application, 7th Nov., 1888
Complete Specification Left, 2nd Sept., 1889-Accepted, 2nd Nov., 1889
PROVISIONAL SPECIFICATION.
Apparatus for the Production of Ozone.
We, ERNST FAHRIG, of 24, Listria Park, Stoke Newington, in the County of
Middlesex, Electrical Engineer, and HORACE EDWARD BILLING, of 9 Great St.
Helens, in the City of London, Merchant, do hereby declare the nature of this invention
to be as follows:-
Our invention relates to the production of Ozone by subjecting air to electrical
action in the following manner.
By means of a pump, blower or fan we produce a current of air, which by preference
we filter from impurities and dry. We pass this air in thin layers between a number
of plates preferably corrugated in order to increase their surface.
Each plate is made of non conducting material coated on one surface with metal foil,
and is connected to one of the terminals of the secondary coil of an inductor, the next
plate in order being connected to the other terminal. The primary coil of the
inductor is connected to the terminals of a dynamo electric machine producing
alternating currents.
The air in passing through between the plates thus alternately electrified is to a
certain extent transformed, presenting a considerable amount of ozone, and is thus
rendered available for bleaching and other purposes to which ozone or ozonised air is
applicable.
1000
ABEL & IMRAY,
Agents for the Applicants.
COMPLETE SPECIFICATION.
Apparatus for the Production of Ozone.
We, ERNST FAHRIG of 24 Listria Park Stoke Newington in the County of
Middlesex, Electrical Engineer and HORACE EDWARD BILLING of 9 Great St. Helens,
in the City of London Merchant, do hereby declare the nature of this invention and
in what manner the same is to be performed to be particularly described and ascer-
tained in and by the following statement:-
Our invention relates to the production of ozone by subjecting air to electrical
action in the following manner. By means of a pump blower or fan we produce
a current of air which by preference we filter from impurities and dry. We pass
this air in thin layers between a number of plates preferably corrugated in order
to increase their surface. Each plate is made of non conducting material coated
on one surface with metal foil and is connected to one of the terminals of the
secondary coil of an inductor, the next plate in order being connected to the other
terminal. The primary coil of the inductor is connected to the terminals of a
dynamo electric machine producing alternating currents. The air in passing through
between the plates thus alternately electrified is to a certain extent transformed,
presenting a considerable amount of ozone, and is thus rendered available for
bleaching and other purposes for which ozone or ozonised air is applicable.
Fig. 1 of the accompanying drawings is a part section of one form of ozone
generator according to our invention. Fig. 2 is a part section of a modified form.
Within a case A of insulating material we pile a number of inducing plates B
and C and insulating plates D. Each of the plates B and consists of a sheet
of dielectric material such as mica vulcanite celluloid or papier maichè in all cases
well varnished and having on its upper surface a sheet of metal foil not readily
oxidisable such as tin or aluminium. Each of the insulating plates D may be of

page_text: glass mica or glazed porcelain kept at a little distance from the plate B below it
by several nonconducting distance pieces E. All the plates B have their foil surfaces
connected to a conductor F leading to the one terminal of the secondary coil of
the inductor and all the plates Care similarly connected by a lead G to the other
terminal. The air which may be filtered warmed or cooled and dried by passing
over trays of sulphuric acid or other drying medium, is caused to pass through the
narrow spaces between the plates B and D while the alternating electric current
is transmitted through the plates, and thus the oxygen of the air is to a large
extent ozonised.
As shewn in Fig. 2 the inducing plates B and C are corrugated, the distance
pieces E being in this case dispensed with. We prefer to pass the air through several
generators in succession the first being larger in extent of surface than those which
follow.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed we declare that what we
claim is
Apparatus for the production of ozone, consisting of an alternate current dynamo
machine, an inductor and inducing and insulating plates between which air is passed
while the plates are electrically charged, substantially as described.
Dated this 2nd day of Soptember 1889.
ABEL & IMRAY,
Agents for the Applicants.