Electromagnets. 



957 



62 314. 1 : 6. 



62 316. 1 : 9 



62317. 1:3. 



62 319. I : 9. 



62.312. Electromagnet after Prof. Weiss, as No. 62,308, but with pole pieces 80 mm diameter 



62.313. --idem, on iron base, as No. 62,309 



The Weiss Electromagnets Nos. 62,308 62,313 can be fitted with the same accessories as the 

 Half-ring Electromagnet No. 62,292 for the same price. 



62.314. Band Spiral for magnetizing (M. P., 9"' Edn., Ill, Fig. 526), Figure 



62.315. Apparatus after Wertheim, Figure, for the singing of steel when magnetized 

 (M. P., 9 th Edn., Ill, Fig. 530) 



62.316. Apparatus after v. Waltenhofen, Figure (M. P., 9 th Edn., Ill, Fig. 891 ; Fr. phys. 

 Techn. II, 1, Fig. 650), for demonstrating saturation, in accordance with which thin 

 iron tubes become more magnetic at low current densities than massive bars; the reverse 

 takes place, however, when the current densities are high 



62.317. Electromagnetic Motor after Eitchie (Ritchie's Top), Figure (M. P., 9 th Edn., 

 Ill, Fig. 540) 



Contrary to the illustration the apparatus is constructed with a 4-pole armature. 





62.318. Electric Motor after Ritchie 



This is constructed exactly like the preceding, but it has an electromagnet instead of the per- 

 manent magnet. 



62.319. Electromagnetic Motor after Page, Figure (M. P., 9 th Edn., Ill, Fig. 607), with 

 4 upright coils 



s. d. 

 52. 10. 



62. 10. 



1. 4.0 



2. 10. 



4. 10. 

 1.10. 

 1. 12.0 



Cl. 1050, 5972, 2606n 

 2608. 



6. 0.0 



2607, 



