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).
Complaints regarding Phantom II bonnet locks, comparing the existing Vaughan lock with a previously designed bar type lock.
| Identifier | ExFiles\Box 12\7\ 07-page195 | |
| Date | 26th November 1931 | |
| 82260 Hs{Lord Ernest Hives - Chair}/Les.1/WJ.26.11.31. X1140 To PN.{Mr Northey} From Hs{Lord Ernest Hives - Chair}/Les.{Ivan A. Leslie} c. to Nor. Sr. c. to Str. BC. c. to By.{R.W. Bailey - Chief Engineer} HY.{Tom Haldenby - Plant Engineer} c. to Ed.{J. L. Edwards} EP.{G. Eric Platford - Chief Quality Engineer} BONNET LOCKS PHANTOM 11. With reference to PN.{Mr Northey}17/ST23.11.31 and PN.{Mr Northey}4/KT24.11.31. This complaint of bonnet lock wearing the bonnet strip away is well known. More than four years ago W. designed the bar type bonnet lock N.S.2372 to overcome this complaint. The Standardisation Sheet I.1140/7260 is dated 17.12.29. After some parts had already been made the bar type locks was withdrawn from production owing to the additional cost. With the increased frame deflection with Diamond engine mounted cars the above complaint is worse. We have pointed out in Hs{Lord Ernest Hives - Chair}/Les.2/KT.5.11.31. that the restricted lateral movement and the difficulty of closing the bonnet are advantages of the present Vaughan lock. Bonnet locks are now only fitted to order, and in such cases we consider it necessary to use the bar type lock to N.S.2372. Will BY.{R.W. Bailey - Chief Engineer} please issue instructions. Hs{Lord Ernest Hives - Chair}/I.A.Leslie. | ||