218 



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



Nos. 4842-4848. 



MOTOR GENEEATOES with Switchboard. These motor generators will meet the demand for a 

 self contained outfit for the laboratory, which may be used to furnish the regular laboratory 

 current and is especially valuable for battery charging. The outfits consist of a Motor Generator 

 Set of the type described on page 217, with the generator for from 24 to 72 volts D. C., depend- 

 ing on the output, and a steel switchboard panel, mounted as in the illustration and having the 

 following 



FEATUEES. 



Voltmeter for reading voltage. 



Push button to be pushed when reading voltmeter. 



Snap switch for closing and opening battery circuit. 



Ammeter for reading charging current. 



Rheostat for adjusting charging current. 

 Snap switch in line circuit for starting 



and stopping. 

 Field rheostat for adjusting voltage. 



The field rheostat will reduce the voltage of any set to 25 per cent of its normal rating, but the 

 charging rate used must not exceed the ampere rating marked on the generator name*plate. 



No A B C D E 



Output, watts 175 250 375 500 750 



Voltage of generator 24 24 36 48 72 



Shipping weight, Ibs 105 170 175 180 200 



4842. MOTOE GENEEATOES, with 110 volt, A. 



C., single phase, 60-cycle motor $115.50 



169.40 201.30 218.90 255.20 



4844. MOTOE GENEEATOES, with 220 volt, A. 



C., single phase, 60-cycle motor 116.60 



170.50 202.40 220.00 256T30 



4846. MOTOE GENEEATOES, with 110 volt, D. C., 



shunt wound motor 111.10 



160.60 193.60 213.40 



4848. MOTOE GENEEATOES, with 220 volt, D. C., 

 shunt wound motor . 



112.20 



161.70 



194.70 



214.50 



NOTE: Nos. 4842-4 B, C, D and E can be furnished with three-phase motors for 5 per cent, more 

 than the above prices. 



