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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).
On the development of a flexible connection from the condenser to the crank-chamber, addressing issues of pitted points and poor earthing.

Identifier  ExFiles\Box 45\3\  Scan031
Date  27th May 1921
  
ORIGINAL

To R.{Sir Henry Royce} from Hs.{Lord Ernest Hives - Chair}
c. to CJ.
c. to E.{Mr Elliott - Chief Engineer}
c. to Da.{Bernard Day - Chassis Design}

HS{Lord Ernest Hives - Chair}2/LG27.5.21.

X 4054 FLEXIBLE CONNECTION FROM CONDENSER TO CRANKCHAMBER.

With reference to your telegram re. the above. The reason this has not been standardised is because there has not been completed a sample of the latest scheme for a flexible connection from the condenser case to the crank-chamber.

We have tried on one of the experimental cars a temporary flexible connection to the crankcase with the existing condenser. We could not appreciate any advantage with it. The points still pitted. It was thought at that time that most probably the reason we could not appreciate any advantage, was the fact that the earth connection of the condenser to the contact breaker cover was still poor. With the present design this connection is made by compressing the condenser which is very flexible. There have been several cases of this connection failing. On examining one of these in the dark, one could see sparks splashing. The new design overcomes this fault. We should have one of these on test next week - we will send a sample to W.W.

V

Hs.{Lord Ernest Hives - Chair}
  
  


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