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Dominion, Volume 22, Issue 72, 18 December 1928, Page 12

Something akin to a miniature inferno was let loose for about three seconds in Messrs. John McGregor and Company s engineering workshops on a recent afternoon. tliis being the occasion when the vital stage of casting was reached in the manufacture of the Calm's new fourblitded propeller (says the Dunedin "Star”). For five or six weeks the workers have been busily engaged in preparing the mould into which a huge cauldron full of sizzling molten bronze was poured. Since this job was one of the largest of its kind ever undertaken in Dunedin it was watched with interest by quite a large gathering of people who, needless to say, stood well back from the workmen in the firing line. The receptacle containing the glowing liquid about to he transferred to the mould was the centre of attraction. but not >t whit less spectacular were the men who carried out the ticklish operation. Grouped around the mould and the cauldron, a foreman and his tnen controlled the various devices with such precision that the cast was successful in every way. It was inevitable, however, that for the time being a shower of fiery particles should shoot up all around the mould. The mould would be left In cool for two or three days before the propeller could be taken out, it was stated.