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



217 



Nos. 4824-4837. 



MOTOR GENERATORS 



A. C. to D. C. 



DIBECT CURRENT NOW AVAILABLE WHEREVER THERE ARE 



ALTERNATING CURRENT MAINS. 



FEATURES. 



Generator shunt wound. 



Generator and Motor armatures mounted on 

 same shaft. 



Motor has revolving primary and is well ven- 

 tilated. 



Radial brushes set on neutral. Cartridge type 

 brushholders used. 



No sub-base required. Sets may be bolted 

 direct to support. 



Use of two-bearing construction makes set 



compact and efficient. 

 Generous size bearings equipped with ring 



oilers. 

 Heavy four arm bearing flanges with ample 



ventilating duets. 



Four thru bolts hold parts firmly together. 

 The voltage chosen may be varied 25% above 



and below normal rating by means of the 



Field Rheostat furnished with each set. 



No starting box needed. 

 Useful for Battery Charging. 



MOTOR GENERATORS, A. C. to D. C. "With single phase, 60-cycle Motor, and Generator wound 

 for 6, 12, 18 or 24 volts D. C. (State voltage desired when ordering.) 



No A B C D 



Output, watts 50 100 175 250 



Shipping weight, Ibs 49 69 90 155 



4824. MOTOR GENERATORS, with 110 volt motor $59.40 68.20 85.80 137.50 



4825. MOTOR GENERATORS, with 220 volt motor 60.50 69.30 86.90 138.60 



MOTOR GENERATORS, A. C. to D. C. With single phase, 60-cycle Motor, and Generator wound 



for 60, 125 or 250 volts D. C. . (State voltage desired when ordering.) 



No A B C D E 



Output, watts 100 175 250 375 500 



Shipping weight, Ibs 69 90 155 160 165 



4828. MOTOR GENERATORS, with 110 volt motor. 62.70 82.50 123.20 155.10 172.70 



4829. MOTOR GENERATORS, with 220 volt motor. 63.80 83.60 124.30 156.20 173.80 

 NOTE: Motors for other frequencies may be obtained at a slight advance in price. 



D. C. to D. C. 



Sets with the same features as those described above are listed for service on 110 or 220 volts Direct 

 Current. 



MOTOR GENERATORS, D. C. to D. C. With direct current Motor, shunt wound, and Generator 

 wound for 6, 12, 18 or 24 volts D. C. (State voltage desired when ordering.) 



4832. 

 4833. 



4836. 

 4837. 



No. 



Output, watts 



Shipping weight, Ibs 



MOTOR GENERATORS, with 110 volt motor. 

 MOTOR GENERATORS, with 220 volt motor. 



A 



50 



49 



50.60 

 51.70 



B 



100 

 69 



61.60 

 62.70 



C 

 175 



90 



80.30 

 81.40 



D 



250 



155 

 132.00 

 133.10 



MOTOR GENERATORS, D. C. to D. C. With direct current Motor, shunt wound, and Generator 

 wound for 60, 125 or 250 volts D. C. (State voltage desired when ordering.) 



No A B C D E 



Output, watts 100 175 250 375 500 



Shipping weight, Ibs 69 90 loo 160 165 



MOTOR GENERATORS, with 110 volt motor. 57.20 75.90 117.70 146.30 167.20 



MOTOR GENERATORS, with 220 volt motor. 58.30 77.00 118.80 147.40 168.30 



For MOTOR GENERATORS with Switchboard see next page. 



