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).
Improvement to the gear lever reverse stop spring for all cars.

Identifier  ExFiles\Box 86\4\  scan0123
Date  8th July 1935
  
GRY{Shadwell Grylls} - Have you ever heard any complaints? +228 Pm.

To Mr. from HDY.{William Hardy}

C. Mr. E.{Mr Elliott - Chief Engineer} Hs.{Lord Ernest Hives - Chair} Ds. RHG

Gear Lever Reverse Stop. - All Cars.

E.{Mr Elliott - Chief Engineer} has suggested that a stronger spring for the reverse stop would be an improvement.

We accordingly give particulars of an extra spring that can be inserted in the existing space as we cannot materially increase the present spring without providing more space.

The existing spring (GB.841) gives loads of 6 and 9.5 lbs, in the normal and compressed positions. We suggest an extra spring of mean diameter .250" wire .032" maximum corrected stress 110,000 lbs/sq.in. (uncorrected 83,000) normal load 2.3 lbs max load 4.8 lbs.
Total loads become 8.3 lbs and 14.3 lbs - increase = 38% and 59%.

HDY.{William Hardy}
  
  


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