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).
Test report for Spring F.363, detailing Brinell hardness and run time results for 6 leaves.

Identifier  ExFiles\Box 80\2\  scan0182
Date  2nd August 1920
  
X262F
SPRING F.363 - 2212 lbs. parallel - leaves tapered ends
no nibs and slots - ground all over.
Fitted on O.S. bump chassis 28.7.20.
No. of leaves 6. | Brinell. | Remarks. | Time run.
1 | 415 | cracked 1 1/2" rear of clip. | 20 hrs. 45 mins.
2 | 444 | cracked 1 1/2" rear of clip
3 | 415 | broken under front clip.
4 | 415 | cracked " " "
5 | 415 | " " " | 22 hrs. 25 mins.
6 | 415 | O.K.
Spring taken off 2.8.20.
R.R. 285A (100 T) (S G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 843, 19-2-20) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 2618
  
  


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