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Arthur Percy Summerfield (1883-1951)
1953 Obituary 
ARTHUR PERCY SUMMERFIELD was born in Melbourne in 1883 and received his education at Charlottenburg University, Berlin, where he obtained a mechanical engineering diploma.
He served an apprenticeship in the Motorfahrzeug Fabrik (later a Daimler factory), Berlin, after which he held a number of brief appointments, including those of draughtsman at the A.E.G. Cable Works, and editor of the house journal and secretary to the chief engineer of the Vacuum Oil Company, Ltd., Hamburg, until 1911, when he rejoined the staff of the A.E.G. Company. During his nine years' service with this firm he filled in succession the positions of chief of the drawing and production office, assistant manager, and finally works manager.
In 1920 he went into business on his own account and became the managing director of Suddeutsche Isolatorenwerke (moulded insulation works), Freiburg.
He came to Great Britain in 1933 and began to practise in Birmingham as a plastics consultant.
At the outbreak of the 1939-45 war he became associated with the Witton Moulded Insulation Works of the General Electric Company, Ltd., Birmingham, where he carried out much valuable work, until his death, which occurred on 27th September 1951.
Mr. Summerfield was responsible for new methods of injection moulding of plastics, in connexion with which he had several patents to his credit. He was also the author of several treatises relating to the plastics industry. He had been an Associate Member of the Institution since 1946.