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).
Letter to J. Howlett of Wellworthy Piston Rings Ltd. concerning the 'L' Section Ring for oil control.
| Identifier | ExFiles\Box 148\1\ scan0064 | |
| Date | 9th March 1939 | |
| 1256 Rm{William Robotham - Chief Engineer}12/R.{Sir Henry Royce} 9th March, 1939. J.{Mr Johnson W.M.} Howlett, Esq., Wellworthy Piston Rings Ltd., LYMINGTON, Hants: Dear Howlett, Many thanks for your letter. Blackith gave me one of your lists the other day, from which I noticed that you had marketed the 'L' Section Ring. We still regard it as No.1 method of oil control. The piston is still confirming its initial promise. Yours sincerely, | ||