1002 



Voltaic Electricity. Section 7: Induction Currents. 



No. 62 905 



62 905. 1 : 4. 



62 908 A. 1:5. 



62912. 1:5. 



62 915. 1 : 10. 



62,905. Model of a Three-phase Motor (Tesla Motor), for a pressure of approximately 2 volts, t. B. i. 

 Figure, with six groups of turns and short-circuited rotor. The winding is done in 

 three colours and the connections are laid open, being connected in star and coloured. 

 The apparatus is very comprehensive and suits No. 62,902 3. 0. 



62.906. - - idem, for pressures of 6 12 volts, suitable for Dynamos No. 62,774 and 62,787/9 



62.907. - - i d e m, for pressures of 20 40 volts, suitable for Dynamos Nos. 62,775/6 a, and 

 suitable also for connecting to heavy current three-phase networks by the aid of Lamp 

 Eesistance No. 61,504 



3. 0.0 



3. 0.0 



62,908. Model of a Two-phase A. C. Motor for a pressure of approx. 2 volts, same pattern ! 

 as No. 62,905, with 4 coloured groups of turns, short-circuited rotor and coloured con- 

 nections laid in the open, suiting No. 62,902 . 3. 0. 



62.909. - - idem, for pressures of 6 12 volts, suiting Dynamos Nos. 62,774 and 62,787/9 



62.910. - - idem, for pressures of 20 40 volts, suiting Dynamos Nos. 62,775/6 a, and also 

 for connecting to heavy current two-phase networks by using Lamp Eesistance No. 61 ,.">(> I 



62.911. Extra Price for Models Nos. 62,905 62,910 constructed as in Fig. 62,908 A . . . 



In this ronsti -iiciioii the motor can be canted over and the rotor easily removed. In addition 

 to the short-circuited rotor are given in: 1 test magnetic needle in mount with handle; 1 iron cross: 

 1 iron disc divided into coloured plots: 1 glass disc and iron filings for demonstration the migration 

 of the lines of force in the rotating field. With this apparatus it is possible to explain the three-phase 

 or two-phase motors quite well. 



3. 0.0 



3. 0.0 



1. 0.0 



CI. 2726. 2727. 

 2728. 5572. 



