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Girling brake, a visit to Rovers, and a solution for oscillation on the 20/25 trials car.


Identifier  ExFiles\Box 120\3\  scan0067
Date  16th November 1933
  
xev176
H3
To E. {Mr Elliott - Chief Engineer} from Sg. {Arthur F. Sidgreaves - MD}
Copy to Wor. {Arthur Wormald - General Works Manager} Ms.BH.
~~Hbr.Do.Hs {Lord Ernest Hives - Chair} /Rms~~

Sg {Arthur F. Sidgreaves - MD} 9/EL16.11.33

Re Girling Brake, and Visit to Rovers.

I am in receipt of E.3/HP.15.11.33 and am glad to have further information relative to this matter.

I quite agree to your carrying on with the programme suggested.

Re oscillation, I appreciate that in 'Spectre(Codename for Phantom III)' you are making provision to overcome this trouble by increasing the torsional rigidity of the frame, but we have got to live a long time with the present designs and I feel, therefore, that we ought to rig up and test the scheme referred to of using friction damped weights on the front dumb irons, i.e. a loaded up bumper.

As mentioned in my former memo, there is much too much oscillation on the front of our 20/25 trials car so that, if Derby could provide us with one of these loaded up ~~xxxxxx~~ bumper bars, we could quickly try the effect on this car.

Sg. {Arthur F. Sidgreaves - MD}
  
  
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).


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