No. 61053. 



Thermopiles. 



861 



'W T* " u I 



61050 and 61052. 1 : 15. 



61 027. 1 : 7. 



61.051. Switchboard for accumulators with 2 supply-points for 20 amperes maximum, 

 Figure 



The switchboard, of polished oak, contains 2 resistances, 1 precision voltmeter and 1 precision 

 ammeter, 2 plug boxes, 1 voltmeter switch, 1 lamp bracket, 1 ammeter switch and 2 fuses. If with 

 marble slab the extra price of switchboard is 1. 5. 



It is very often desirable to have to branch off two circuits from a battery, the current strengths 

 of which have to be regulated separately. The switchboard is excellently adapted for this purpose. 



61.052. Cupboard for containing the Accumulators and a Thermopile, Figure, with the 

 necessary connecting leads, but exclusive of thermopiles and accumulators 



According to the conditions existing relative to space, it will be necessary to settle the question 

 of where to place the accumulators and the thermopile. 



Fig. 61,052 shows a cupboard fitted up with the thermopile and a 12-cell battery. The cup- 

 board has a sheet iron grating at the upper part; the accumulators can therefore be charged with the 

 cupboard completely closed without the latter becoming appreciably heated. The cupboard is provided 

 with locks and keys in order to prevent any tampering with the contents. The length of the cup- 

 board is 1.2 m, the height 0.8 m, and the depth 0.45 m, assuming that only 1 Gulcher thermopile 

 is to be installed therein. If it is intended to contain 2 thermopiles the depth is then 0.6 m. 



61,053. - - i d c m, for 2 thermopiles 



s. d. 

 12. 0.0 



Experimental Switchboards for charging purposes and for use in connection with 

 Accumulators: see Vol. I of this Price List, pp. 107 125; Resistances: see pp. 125 128, 

 also following section on Apparatus for Current Conduction and Distribution. 



4.10.0 



5.10.0 



Cl. 



75, 33 r 



