A Tandem Compound Mill Engine PART 3

Continued from p.383 M.E.4751 September 6 The flywheel (fig 8) is supplied as castings of the two halves which is true to prototype for an engine of the size we are modelling. Until the keyway is formed the two halves are identical but whilst it would be possible to machine them separately, it would be a challenge! The castings were smooth enough to use one face as a datum and set up the joint surface aligned to the mill x-axis so as to split the barring teeth evenly between the two halves (photo 21) and clean up both sides. Getting the barring teeth to match up correctly was tricky and they needed adjustment later, after the wheel was together. I was puzzled as to why Throp had drawn the teeth…

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Model Engineer (Digital) - 1 Issue, Issue 4752

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