| Show TEST PULVERIZED COAL COA FOR SHIPS PHILADELPHIA July 28 23 By ByThe ByThe ByThe The Associated Press A A day 10 test was begun at nt the Philadelphia navy yard Wednesday of the pulverized coal burning coal burning unit proposed to sip sip- plant oil ol as a fuel for United Stales States naval vessels at a n great feat saving of cost Commander J. J S S. Evans fuel con con- conservation conservation officer in sooty soot greasy overalls o was in charge charco of the expert expert- experiment experiment ment mont ordered by the navy department at at- Washington He explained the unit in the yard ard boiler room will be kept in operation at full blast for hours the tue average running time of a a. trans Atlantic vessel esse Two tons of ot Iron balls each a a. few incIses Inches In diameter crush bituminous coal Inside a revolving re drum The pulverized coal is consumed by three tubular burners |