Abstract
DURING last year, there has been a widespread increase in the number and the variety of the applications of batteries for stand-by purposes and emergency lighting. In the annual review number of the Electrician of January 28, Mr. E. C. McKinnon points out that this is partly due to air-raid precautions, which naturally trust to storage batteries for emergency lighting. Manufacturers are using the popular sizes of the starting batteries used in motorcars for this purpose when circumstances permit. In other cases, alkaline batteries or sealed-in lead-acid accumulators are employed. The vast programme for broadcasting and recording the incidents of the Coronation ceremony and processions was largely dependent upon batteries. Car radio equipment has been applied to police patrol cars and to police patrol pedal-cycles. Many systems of battery-controlled fire alarms have also been installed. There has been a considerable increase in the demand for accumulators for deaf-aid equipment.
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Developments in Storage Batteries. Nature 141, 548 (1938). https://doi.org/10.1038/141548b0
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DOI: https://doi.org/10.1038/141548b0