Apparatus for Transforming Oxygen into Ozone.
Year: 1895

page_text: Date of Application, 17th Jan., 1899
Complete Specification Left, 28th Sept., 1895-Accepted, 9th Nov., 1895
Date of Application, 17th Jan., 1899
Complete Specification Left, 28th Sept., 1895-Accepted, 9th Nov., 1895
Apparatus for Transforming Oxygen into Ozone.
I, MARIUS OTTO, of 8 Passage Gourdon Paris, France, Engineer, do hereby
declare the nature of this invention to be as follows :-
My invention relates to an ozonising apparatus, the action of which is based
upon the partial transformation of oxygen into ozone under the influence of
electrical discharge.
The apparatus consists essentially of a rectangular or other shaped box of wood
or other suitable material, coated internally with a protective varnish which
protects it against the corrosive action of ozone, which box rests on insulating feet
of glass or other material.
Within the box are arranged a series of parallel elements, each consisting of two
glass plates having perforations at their one end and having between them a sheet
of aluminium or other conducting material, stopping short of the perforations.
The said perforations are arranged alternately at the lower end of one element
and at the upper end of the next one. The glass plates of the end elements have
only a single hole for the entrance on the one hand of the gas to be ozonised, and
for the exit on the other hand of the ozonised gas. Thin strips of asbestos are
interposed between the edges of the contiguous glass plates of the successive
elements, so as to keep these at a suitable uniform small distance apart and which
consequently serve to form enclosed spaces between the elements. For rendering
such closure hermetic, the two end glass plates of the series of elements are
extended a certain height above the others all round, and the trough-like space
thus formed over the other glass plates is filled in with a suitable cement.
The conducting sheets situated between the pairs of glass plates of the alternate
elements, such as Nos. 2, 4, 6 &c. are connected by rods, strips, or wires to a screw
terminal to which is connected the one pole of a Ruhmkorff coil or high tension
alternating current generator, while the other set of conducting sheets, such as
Nos. 1. 3. 5 &c. are connected in like manner to a second screw terminal connected
to the other pole of the generator. The electrical discharge takes place across
the spaces between the successive elements, while the current of oxygen to be
ozonised flows in a zigzag direction through these spaces which communicate with
each other alternately at top and bottom through the before mentioned
perforations.
Instead of constructing the elements of flat sheets of glass and conducting
material, they may be formed cylindrical or polygonal, and placed concentrically
one within the other.
Dated this 11th day of January 1895.
ABEL & IMRAY,
Agents for the Applicant.

page_text: I, MARIUS OTTO, of 8 Passage Gourdon, Paris, France, Engineer, 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:-
My invention relates to an ozonising apparatus the action of which is based on
the partial transformation of oxygen into ozone under the influence of electrical
discharges.
Apparatus acting in this way may be of many forms, one of which by way of
example I shall describe referring to the accompanying drawings.
Figs. 1 and 2 which are vertical sections on planes at right angles to each other.
A is a rectangular box which may be of wood or other suitable material coated
inside with varnish to protect it from the corrosive action of ozone.
The box rests on feet S of glass or other non-conducting material. Within the
box are arranged a number of parallel elements E₁ to E₁₁ each consisting of two
flat glass plates a having holes t1 to t5 through them near one end, and holding
between them a sheet 6 of aluminium or other conducting material.
The bolest 1 to t5 are arranged alternately at the upper and the lower parts of
the successive elements.
The plates a of the outer elements E1 and E 11 have only one hole through
them, O₁ for the admission of the gas to be ozonised and O2 for discharge of the
ozonised gas.
Thin strips M of asbestos are interposed between the elements at their end and
side edges keeping them a suitable distance apart such as a millimetre, and pre-
venting escape of gas from between them. The two extreme glass plates al are
made longer and wider than the others and the space between their projecting
edges is filled up with cement which renders the sides and ends quite tight
against escape of gas. The conducting sheets 6 of the even elements E, E. &c.
to E, are connected by small strips 2, attached to them, to a connecting post b¹,
and the sheets 6 of the odd elements E, E, &c. to E₁ are connected by strips r
to a post 2. The posts 6' 62 are connected to the terminals of a Ruhmkorff coil
or of a high tension alternator. The electric discharges play in the spaces between
the elements while through these spaces the gas travels in a zig-zag course as
determined by the position of the holes t at the upper and lower parts of the
elements alternately.
The elements, instead of being flat as shewn, might be cylindrical shells arranged
concentrically.
As compared with previously known ozonising apparatus, the new apparatus
according to the present invention gives the following technical new results:-
a) The ozone which as well known attacks wood, caoutchouc &c. in the new
apparatus circulates always between glass plates which cannot be attacked by it,
and does not come in contact with any material that is destructible by it.
6) The tight closure of the apparatus is ensured by the cement which is poured
between the larger extreme glass plates and serves to hold all the plates together,
so that no ozone can come in contact with the casing of the apparatus and attack it.
c) In consequence of the use of metal sheets between which the electrical
discharges take place, and of the arrangement of the holes by which the oxygen
to be transformed is caused to pass in a zig-zag course through the spaces between
the successive elements, the apparatus is rendered light and compact, not only so
but also owing to the way in which the gas has to pass from each space to the
next, a thorough mixture is effected so that all portions of the oxygen are uniformly
ozonised.

page_text: Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is:-
Apparatus for transforming oxygen into ozone, substantially as described with
reference to the accompanying drawings.
Dated this 28th day of Sentember 1895
ABEL & IMRAY,
Agents for the Applicant.