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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).
Modifying a Bentley bumper bar for starting handle clearance.

Identifier  ExFiles\Box 118\2\  scan0140
Date  7th December 1934
  
To Da.{Bernard Day - Chassis Design} from E.{Mr Elliott - Chief Engineer}

c. Hs{Lord Ernest Hives - Chair}/Fm.

re Bentley Starting Handle Clearing Bumper Bar.

In connection with the above, Mr Fairey's car requires modification, as also of course the standard adaption.

The bumper bar must be moved forward by increasing the length of the abutment pieces fitted to the front dumb irons, but as this may not give sufficient clearance to avoid trapping the hand it appears necessary to put a double joggle in plan view in the spring portion of the bar, so as to displace the centre portion in a forward direction.

E.{Mr Elliott - Chief Engineer}
  
  


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