Rolls-Royce Archives
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From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Manufacturing suggestions for supercharger rotors and other parts.

Identifier  ExFiles\Box 178\2\  img054
Date  26th March 1940
  
Rm.{William Robotham - Chief Engineer} - page 5
Serial No. 53
OY 13/D/Mar.26.40

bits of work, especially the G.M. Blackstone saw this in Research.

Cannot a clever specialist like Lucas or Hardy Spicer, be per-suaded to make these in various sizes for the trade? Otherwise die-cost is going to run pretty high.

Another suggestion, based on the G.M. experimental supercharger rotors, would be to make them as permanent mould aluminum alloy cast-ings.

OY
  
  


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