SCIENCE 



New Series 

 Vol. Ln, No. 1352 



Friday, November 26, 1920 



Single Copies, 15 Cts. 

 Annual Subscription, 86.00 



OIL EMULSION APF C^ATUS 



for the y 



DEMULSIBILITY TES' 



U. S. NAVAL STATION DESIGN 



IMPROVED BY E. & A. 



> ■(>■ 



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THE BATH maintains the c^ ..ts of 

 the graduated cylinder at a tempera- 

 ture of 55°C. There is a special stirrer, with 

 motor and governor, for maintaining a con- 

 stant speed of of 1500 R.P.M. 



This apparatus is used and is especially rec- 

 ommended for determining the quality of 

 Fuel oils for internal combustion engines. 

 It has also been recommended for Physical 

 Chemical Laboratory experiments, as the 

 emulsification quality is a factor of the Sur- 

 face Tension. 



E.&A. improvements are the arrangement 

 whereby the bath moves up and down in- 

 stead of the motor, and the governor for the 

 motor. The apparatus is furnished com- 

 plete with motor, governor, stirrer, electric 

 heating arrangement, and 6 cylinders. 



mend 



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