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).
Cablegram from Springfield regarding a successful fix for engine knocks using expanding lock screw gudgeon pins.
| Identifier | ExFiles\Box 48\1\ Scan127 | |
| Date | 6th January 1921 | |
| EP.{G. Eric Platford - Chief Quality Engineer} H.S./9.1.21 (crossed out) X.4190 D/BP/RB{R. Bowen}/W6.1.21. Below is cablegram received from Springfield. Number one Platford with reference to your telegram 301. America experience with elusive knocks, reason given (?) Derby to overcome recommend as immediate cure gudgeon pins with expanding lock screws these have been run successfully 4,000 miles 4.EX. also have been fitted (to) London Trials. 6 sets put in hand on receipt. [Signature] D/BP. R.R. 235A (100 T's. 150. H.{Arthur M. Hanbury - Head Complaints} 11-8-20) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 3800 | ||