thus preventing the direct discharging of bat- tures which are of interest to electric vehicle and operat- teries back into the machines. The "alarm" circuit pro- ing electrical engineers. vides the same protection to the apparatus in the event The installation current supply has been carefully of… … under the drain box additional layers of felt and com- passing it back through a "booster" generator where it is pound are employed. A second layer of 1:2:4 con- raised to the charging voltage and then used over again. crete is placed over all, finished and painted like the Another of the striking…
Automobiles, Electric · Electric vehicles
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