Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUS653078 A
Publication typeGrant
Publication dateJul 3, 1900
Filing dateApr 17, 1900
Priority dateApr 17, 1900
Publication numberUS 653078 A, US 653078A, US-A-653078, US653078 A, US653078A
InventorsWilliam Elworthy
Original AssigneeWilliam Elworthy
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Apparatus for generating ozone.
US 653078 A
Previous page
Next page
Description  (OCR text may contain errors)

Patentd July 3, 1900.


(Application filed Apr. 17, 1900.)

(No Model.)

n ix chamber except through the said tubes.

Um'rnn STATES I 'PATENI Quince,


P ATUS Fo R. c an ERATlNG, ozon a.

SPECIFICATION forming part of Letters Patent No. 653,078, dated July 3, 1900.

Application filed April 17, 1900.

To all whom it mdy concern:

Be it known that I, WILLIAM ELwoRrHY, a citizen of England, residing at 16 Roseberry Gardens, Crouch End, London, in the county ofMiddlesex, England, have invented a certain new and useful Improved Apparatus for Generating Ozone, (for which'I have applied for a patent in Great Britain, dated June 16, 1899, No. 12,612,) of which the following is a specification.

' According to my invention I construct ap paratus for generating ozone as follows: A- number of tubes of dielectric material, preferably glass, are arranged side by side atsmall distances apart within an inclosing chamber into which their lower ends open, so that no air or oxygen can enter the said The upper ends of the tubes open into an upper chamber hermetically separated from the lower chamber by 'a horizontal partition, through which the tubes pass and from which they are suspended. Within each tube is a metal rod or tube of smaller diameter than the'internal diameter of the dielectric tube and arranged so as not to be in contact with it, and around the outer surface of each dielectric tube, at a slight distance therefrom, is coiled a wire or metal cord or chain in such manner as not to be in contact with the tube. The metal rods within the tubes being connected to the one terminal of an electric circuit including any suitable electric generator,

while the coiled wire is connected to the other terminal of. the circuit, air or oxygen is admitted through an inlet'iu the upper chamber, whence it passes down through the annular space between the metal rod and the inner surface of the dielectric tube, being partially ozonized during such transit by the electric discharge from the central metal rod to the inner surface. of the dielectric tube. On issuingfrom the lower openend of the dieleetric'tube into the surrounding space of the lower chamber the air or oxygen then passes up .both in the small space between the outer surface of the dielectric tube and the wire coil-surrounding the same and also' Serial No. 13,267- (No model.)

a lower chamber E, which are hermetically separated from each other.

The partition B has screw-threaded openings G for the reception of the upper ends of the glass tubes F. These tubes are for this purpose fixed in caps G, of vulcanite or other dielectric material, having openings G at.

top and a threaded boss G which screws tightly into one of the openingsof the partition B, so that this holds the glass tubes F suspended in the lower chamber E. On the lower end of each glass tube is fixed another cap II, and a metal rod I is passed through a central hole in the cap G, down through the tube F, and into a; central hole in. the cap H, so that the rod I will thereby be held perfectly central'in the tube and out of contact therewith.

Surrounding the outside of the giass tube F at a small distance therefrom is a coiled wire J, the upper end of which is connected by a wireK to one of two conducting-bars L, fixed to the partition B, which bars are connected to the terminal M of the electric circhit. e

I The upper ends of the rods I are all connected by wires N to the second terminal R of the circuit.

For keeping the coiled wires J out of contact with the tubes F various arrangements may be employed. Thus, as shown, a cord or strip 0 of dielectric material may be coiled around the outer surface of the tube F in the contrary direction to that in which, the W5 re J is I upper compartment D and Q theoutlet for ing down through the same will be partially ozonized by the current discharge from the metal rod 1. On issuing from the tubes through the holes-of the bottom-caps N- the partially-ozonized air or oxygen will travel upward partly through the narrow spaces be tween the outer surface of the tubesF and between the several tubes.

the wire coils J and also through the spaces In flowing upward the air or oxygen is consequently subjected to a second ozonizing; action by the electrical discharges. 4 This action .is rendered the more perfect by the fact that owing to the sectional area of'the chamber E between the glass tubes being much greater than that of the collective area oftheinteriors of all the glass tubes'the upward flow of the air or oxygen will take place at a much slower rate than that of the downward flow within the tubes, and consequentlythe electrical'dis charges will operate upon the same during a much longer time.

Having thus described the nature of this invention and the best means Iknow for carrying the same into practical eEect, I claim- Apparatus for of tubes of dielectric material fitted air-tight in a partition in a into two hermetically separated compartments, metal conductors passing through the ductors coiled helically around fiie said tubes out of contact therewith, the said metal con ductors within the tubesbeing connected with one terminalof a source of electricity while '3 generating ozone consisting box which divides the box .sa dtnbes ou fit 'eontacttherewith, metal con;

the said metal conductors surrounding the tubes are connected with of the same source of electricity, air to be ozonized in the upper compartment of the box and an outlet for the ozonized air in the lower compartment of the box substam tially as and for the purpose described;

In testimony whereof I have hereunto set my hand in presence of two subscribing wit nesses. v V



the other terminal an inlet for,

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2590323 *Dec 30, 1947Mar 25, 1952Hugh TevisElectrical apparatus
US4834948 *May 21, 1987May 30, 1989E. M. Heinkel K.G.Device for enriching a fluid with ozone
Cooperative ClassificationC01B13/11