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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).
Instructing the creation of a shorter nut for a .900 lead worm for experimental comparison.

Identifier  ExFiles\Box 67\4\  scan0410
Date  12th December 1927
  
To RHC.{R. H. Coverley - Production Engineer} from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}

X8430

Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer}1/LG13.12.27.

.900 LEAD WORM. X8430

In order to enable a shorter pendulum lever to be used for experimental tests with this worm and nut, the D.O. are instructing a shorter nut experimentally to give more clearance to the box. We should like these shorter nuts to be made quite separately and not to interfere with any of the existing nuts which have been made with this lead, so that we can get a careful experimental comparison as to whether the difference in length affects the nut efficiency.

Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}
  
  


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