136 



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



No. 2580 with No. 2588. 



2574. CENTRIFUGE, Victor No. 3, same as No. 2570, but equipped with four-tube head and four 



aluminum shields for 15 ec tubes, without glassware. 

 Specifications same as No. 2570, except: 



B. P. M. (A. C.) 1350. R. P. M. (D. C.) 1400. 

 Relative force 264. Relative force 286. 



Price $34.50 



2576. CENTRIFUGE, Victor No. 3, same as No. 2574, but arranged for 220 volts A. C. and D. C. 37.50 

 2578. RHEOSTATS for controlling speed of No. 3 Centrifuges. 



No A B 



For volts 110 220 



Each 3.60 3.60 



For other ACCESSORIES, see list at end of section on Victor Centrifuges. 



2580. CENTRIFUGE, Victor No. 2, similar to No. 2570, but of heavier construction, can be operated at 

 a higher speed, will handle larger volumes of liquid, and has a rheostat in the base by means 

 of which three different speeds may be obtained. The motor, arranged for both 110 volts A. 



C. and D. C., is entirely enclosed in an iron jacket, enameled with black acid-proof finish. Com- 

 plete with two-tube head with attached trunnion rings, two conical aluminum shields for 15 cc 

 tubes, and attachment cord and plug, without glassware. 



Specifications : 



Height over all, 15 inches. R. P. M. (A. C.) with Protective Dome No. 2588, 2800. 



Diameter over all, 10 inches. Relative force, 780. 



Weight, 22V 2 pounds. R. P. M. (D. C.) with Protective Dome No. 2r>8S, 3300. 



Average spread, 18 em. Relative force, 1050. 



Price 43.70 



2582. CENTRIFUGE, Victor No. 2, same as No. 2580, but arranged for 220 volts A. C. and D. C. 46.70 

 2584. CENTRIFUGE, Victor No. 2, same as No. 2580, but with four-tube head with attached trunnion 



rings, four conical aluminum shields, and attachment cord and plug, without glassware. 

 Specifications : 



Height over all, 15 inches. R. P. M. (A. C) with Protective Dome No. 2588, 2.100. 



Diameter over all, 10 inches. Relative force 620. 



Weight, 22i/ 2 pounds. R. P. M. (D. C.) with Protective Dome No. 2588, 3000. 



Average spread, 18 cm. Relative force 900. 



Price 47.50 



2586. CENTRIFUGE, Victor No. 2, same as No. 2584, but arranged for 220 volts A. C. and D. C. 50.50 



2588. PROTECTIVE DOME, of heavy spun copper, polished, with closely fitting lid with handle. Can 



be easily attached to any Victor No. 2 Centrifuge. The use of this dome permits a higher speed, 



and eliminates danger to the operator 10.50 



Accessories for No. 2 Centrifuges. 



2589. TWO-TUBE HEAD, with attached trunnion rings and 50 cc round bottomed bronze shields, with 



rubber cushions 9.70 



2590. TWO-TUBE HEAD, with Babcock trunnion cups and rubber cushions, for determining the per- 



centage of butter-fat in milk or cream 11.40 



For other ACCESSORIES, see list at end of section on Victor Centrifuges. 



