From the October 25, 1930, issue

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STEAM ACCUMULATORS BOOST POWER IN BERLIN

Six hundred tons of steam stored under 190-pounds-per-square-inch pressure in huge steel cylinders help Berliners ride the trams to and from work and burn lights in the early morning.

These cylinders are the new steam accumulators at the Charlottenburg power station, which are attracting worldwide attention because they may be the best means of supplying peak load power.