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).
Distortion of Bentley road springs, including Brinell hardness test results.
| Identifier | ExFiles\Box 87\4\ scan0032 | |
| Date | 24th May 1934 | |
| X 246 To E.{Mr Elliott - Chief Engineer} c. to Wor{Arthur Wormald - General Works Manager}: c. to By.{R.W. Bailey - Chief Engineer} c. to Da.{Bernard Day - Chassis Design} Distortion of Bentley Road Springs. Further to HS{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}8/KW.18.5.34. Since the trouble mentioned in this memo, we have been examining the springs of our experimental cars. In the ordinary way being covered with gaiters it is not easy to see any distortion. We have found however that on one of our cars we have reproduced the customer's trouble. In this case we cannot blame the spring brinell as the figures given below indicate this to be well up to specification. We are now seeing if we can find a means of reproducing this trouble at will, with the object of trying out rebound leaves etc. to improve matters with the existing scheme. Brinell Figures of 2 Woodhead Springs. No. 1 Spring. Top 418 2 430 3 430 4 402 5 440 6 418 7 387 8 418 No. 2 Spring. Top 418 2 418 3 418 4 418 5 418 6 430 7 418 8 418 These figures show that the brinell of all the leaves is with one exception over our maximum figure of 369-401. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||