X.i. 62 922. 



Models of Alternating and Three-phase Motors. 



1003 



62920. 1:5. 



62916. 1 : 10. 



62921. 1 : 6. 



62922. 1 : 8. 



62.912. Three-phase Motor and Two-phase Motor; both can be tilted over; on one board; s. d. 

 Figure, with the same accessories as under No. 62,911, for approx. 2 volts, suiting 



No." 62,902 7. 10. 



62.913. --idem, for pressures of 6 12 volts, suitable for Dynamos Nos. 62,774 and 62,787 



to 62,789 7. 10. 



62.914. - - idem, for pressures of 20 40 volts, suitable for Dynamos Nos. 62, 775/6 a and 



for connecting to heavy current networks by using No. 61,504 7. 10. 



62.915. Alternator after Braun, Figure 6. 10. 



62.916. Three-phase Motor after Braun, Figure, suitable for No. 62,915 (Ztschr. f. d. phys. 



u. chem. U. 5, p. 186) 7.10.0 



Following are supplied as Accessories: magnetic needle rotating in fork; light iron cross on stand; 

 sheet iron strip (with spring) on base; light iron piece with base; iron cross; iron ring and ring wound 

 with copper wire as rotor; different coloured flexible leads. 



62.917. Two-phase Alternator after Braun, construction as No. 62,915 6. 0. 



62.918. Two-phase A. C. Motor after Braun, construction and accessories as No. 62,916 . 7. 0. 



Apparatus Nos. 62,915 8 are very comprehensively built and permit of demonstrating in a very 

 pretty manner the electrical transmission of power with polyphase A. C. 



Three-phase Current Model after Prof. Weiler (Ztschr. f. d. phys. u. chem. U. 5, p. 189; 

 6, p. 53), comprising: 



62.920. Double Pachytrope after Weiler, Figure 2. 10. 



62.921. Tesla Motor after Weiler, can be tilted back, Figure, with test magnetic needle, 

 iron disc, iron cross for insertion, also glass plate for rendering the lines of force visible 



by means of the iron filings supplied 5. 0. 



62.922. Crossed Coils after Ferraris, Figure 5. 0. 



Cl. 5570, 2729. 

 6051, 4097. 



