CENTRAL SCIENTIFIC CO., CHICAGO, U. 8. A. 



<589 



9946. OZONATOR, Electric, for the pro- 

 duction of ozone (Os) for labora- 

 tory and industrial research. This 

 outfit is a practical working ma- 

 chine built for us by the Electric 

 Ozone Sterilizer Co. of America. 

 The ozone producing tubes are the 

 same as those used on the large 

 industrial outfits and all parts are 

 standard. The machine is a com- 

 bination of the suction and pres- 

 sure types. For suction an as- 

 pirator is furnished and a tower 

 is provided for use whenever the 

 pressure type is needed. The ma- 

 chine consists essentially of a 110 

 to 5500 volts step-up transformer, 

 two standard vacuum ozone produc- 

 ing tubes, a pressure tank, a mixer 

 with aspirator, an absorption 

 tower, and a rheostat for control- 

 ling the voltage. The concentra- 

 tion of ozone can be controlled 

 either by changing the rate of 

 flow of air or by varying the volt- 

 age. The various parts are 

 mounted on a white enameled 

 board 22x32 inches with all con- 

 nections in plain sight. The line 

 wiring is enclosed in aluminum 

 tubing, and the high voltage wir- 

 ing in glass tubing, to prevent any 

 danger. The tower is five feet 

 high. 



No. 9946. 



With this outfit and a small force or suction pump such as our No. 1398 or No. 1400, there is 

 available for the research engineer or chemist an ample supply of ozone in any concentration 

 up to six grams per cubic meter of air, and in quantity up to' one-half gram per hour per tube. 

 A special valve is provided by which the ozone can be "obtained from either one or both of the 

 vacuum ozone tubes, and can be mixed with water, either by a suction system in the mixing 

 valve or by the use of pressure in the absorbing tower, or can be led or forced into any solution 

 desired. 



Some of the uses to which this machine can be put, on a laboratory scale, are: the practical 

 sterilization of water; the sterilization of milk; purification of air; sterilization of bottles and 

 containers; disinfection of surgical dressings; bleaching and refining of oils; bleaching of flax, 

 gums, waxes, ivory, bone, feathers and starch; aging wines and liquors; hardening and ripening 

 woods: improving the quality of tobacco; removing undesirable odors from raw coffee; the puri- 

 fication of illuminating gas; and in cold storage experiments, especially in keeping eggs, meat 

 and vegetables. 



By means of this machine, all of the above processes can be tested on a sufficiently large scale in 

 the laboratory to enable satisfactory conclusions to be drawn as to the success of the opera- 

 tions when conducted on a practical manufacturing basis. 



Ozone is a powerful chemical agent for use in organic chemistry, and finds further application in 

 the manufacture of artificial gum arabic; the production of synthetic indigo; the oxidation of 

 turpentine to camphor; the production of artificial perfumes: the manufacture of vanilla ex- 

 tract, etc.. Many other uses will be readily found for this machine in the researoli labora- 

 tories of universities and industrial plants. 



Complete as described with high potential transformer, 4 gallon pressure tank, air valve, air 

 pressure gage, two %-inch brass cocks, manually operated faucet with electric switch and as- 

 pirator, snap switch, two vacuum ozone tubes with switches, four-way tube with four valves, 

 two 1 ampere fuses in white enameled cast iron box, all mounted on white enameled board, 

 and with ozone tower, rheostat and one extra ozone tube, complete with directions for installa- 

 tion and operation. 



Type 



For volts 

 Each . 



C. A. C. B. 



A. C. 



110 220 



$375.00 375.00 



C. C. C. D. 



B.C. 



110 220 



450.00 450.00 



