No. 60441. 



Influence Machines. 



819 



60431 and 60432. 1 : 10 and 1 : 12. 



60433 60438. 1:5 1:10. 



Self-Exciting Influence Machine, as suggested by Topler, Figure, with 4 rotating and s. d. 

 4 fixed plates, wood parts of walnut, very elegantly constructed: 



List No. 60,417 60,418 60,419 60,420 60,421 60,422 60,423 60,424 

 )iamet ^ a t f eg rotatin S } 36 41 47 52 57 62 75 90cm 



15. 0. 18. 0. 21. 0. 24. 0. 29. 5. 37. 10. 45. 0. 56. 5. 



Self-Exciting Influence Machine, as suggested by Topler,"* 1 Figure, with 2 rotating and 

 1 fixed plate, without ebonite pillars, producing half as much electricity again as the 

 machines with only 2 plates. 



List No. 60,425 60,426 60,427 60,428 60,429 60,430 



Diameter of rotating plates 26 31 36 41 47 52 cm 



2. 0. 2. 15. 4. 0. 4. 15. 6. 15. 8. 5. 



Self-Exciting Influence Machine (Wimshurst's), Figure, with double rotation, with 2 glass 

 plates, polished base. These machines work without alternation and are independent of 

 atmospheric humidity (Gan.-Man. Fig. 667; Gan.-Kein. Fig. 747). 



List No. 60,431 60,432 



Diameter of plates 26 31 cm 



1.10.0 2.0.0 



Self-Exciting Influence Machine (Wimshurst's), Figure, with double rotation, with two 

 ebonite plates and wood stand. 



List No. 60,433 60,434 60,435 60,436 60,437 60,438 

 Diameter of plates 25 30 35 40 '45 50 cm 



1. 10. 2. 10. 3. 10. 4. 10. 6. 0. 7. 0. 



Self-Exciting Influence Machine (Wimshurst's), Figure on p. 820, with double rotation 

 and 2 glass plates, base-board of mahogany, insulating pillars of ebonite, with iron 

 supports and drive. 



List No. 60,439 60,440 



Diameter of plates 41 52 



4.15.0 6.15.0 



60,441 



62 cm 

 8.5.0 



Cl. 5710, 29 F. 



52* 



