. Electrical world. e andelectric automobiles, the electric system is practically the only motorsystem in general u?e in commercial wagon service. In New \orkCity alone there are now approximately 300 electric wagons andtrucks in service. All wagons of 2,000-pounds capacity, which is the capacity gen-erally used by department stores and for light express service, haveto make about 30 miles per day, and the battery equipment of sucha wagon should correspond to this service. The price of such awagon with the usual type of department store body is about $2,500A good battery will do 95 days work i
. Electrical world. e andelectric automobiles, the electric system is practically the only motorsystem in general u?e in commercial wagon service. In New \orkCity alone there are now approximately 300 electric wagons andtrucks in service. All wagons of 2,000-pounds capacity, which is the capacity gen-erally used by department stores and for light express service, haveto make about 30 miles per day, and the battery equipment of sucha wagon should correspond to this service. The price of such awagon with the usual type of department store body is about $2,500A good battery will do 95 days work in such a w-agon before it needscleaning, which consists in cutting each connecting strap so thatmud may be washed from the plates and from the jar. The cell?are then reconnected, or burned together, and after being given aslow charge are again ready for service. After this cleaning theyrun about 75 days more before the mud has again accumulated to apoint reqiiiring another cleaning. After this second operation it is. FIG. I.—ELtCIKlC DtLlVERV \\.\\- usually found that the wooden separators, if used, require to bereplaced by new ones; this latter requirement involves the separationof plates when they are removed from the jar and means morelabor and a greater breakage of separators and plates than at thefirst cleaning. When this has been done and the battery has goneinto service for ihe third time, it is good for about 60 days morework before all of the active material on the positive plates has beenshed and their useful life ended. When this point is reached a newset of positive plates is substituted and since this means the handling of fragile acid-soaked wood separators, these also must be replacedby new ones. The battery then starts out entirely fresh except forthe negative plates. In most cases these hold out and show nosigns of failure until the next cleaning and they do not appear togive out together as do the positives. An average might be set at^one set of negative
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectelectri, bookyear1883
