288 



Whirling Tables and Accessory Apparatus. 



No. T.2061 



52 06ir 1 : 7. 



52 062. 1 : 8. 



52 065. 1 : 7. 



52 064. 1 : 7. 



52 086 A. 1:8. 



52 066 B. 1:8. 



52 067. 1 : 7. 



Apparatus for generating Focault Currents in a copper disc rotating between the poles 



of an electromagnet, Figure 



When the circuit of an elestro-magnet is closed, a large amount of power is necessary to rotate 



the disc very rapidly. 



r2,<)2. Apparatus for Unipolar Induction, Fessel and Pliicker's, Figure, with 2 rotating 

 bar magnets (M. P., <) lh Edn., Ill, Fig. 584) ................... 



52,063. Apparatus for Earth Induction, with rotary wire spiral and commutator, for taking 

 off direct current (Fr. phys. Techn. II, 1, Fig. 1118) ............... 



.~i2,<)64. - - idem, with commutator and slip rings, Figure, for taking off direct and 

 alternating current ............................... 



:>L'.()<;r>. Pacinotti's Ring, as suggested by Biihlmnnn, Figure, with conductor springs 

 (Fr. pliys. Tedm. II, 1, Fig. 1138), without horse-shoe magnet and vertical galvanometer 

 When the ring is rotated ;md a magnet held above, a galvanometer joined up with tlic conductor 

 springs gives a considerable deflection. 



.">-', odd. Apparatus for explaining the Magneto - electric and Dynamo - electric Principle, 

 Figs. A and B .............................. 



The apparatus consists of: (a) 1 Pacinotti ring ...................... 



(b) 1 Magnet ... ...................... 



(<) I Klectni-magiift ......... ............ , 0. 



(d) 1 Brush Conductor ..................... I 0. 



1. <s.u 



1. 



l. 



1. 



1. 



8.0 

 13.0 



Kl.o 



is. d 



o.o 

 15. 



l.~>. o 

 15. 



II. i;73. M22. 676, 

 675, 677. B7, 



tn. 



