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 Ferodo Limited regarding a chemist's report and photomicrographs of problematic and well-performing brake drums.
| Identifier | ExFiles\Box 13\1\ 01-page62 | |
| Date | 1st November 1934 | |
| 17360 Exptl. Dept. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}17/KW. 1st November, 1934. Messrs. Ferodo Limited, Chapel-en-le-Frith. For the attention of Mr. Longley. Dear Sirs, Further to our conversation on the subject, we hand you herewith our chemist's report on the Milanite drums which gave us trouble, and also a Photomicrograph of the drum which gave the full performance. We shall be indebted to you if you could give us your opinion on this composition. Regarding the enclosed Photomicrographs, A.759 and A.760 were taken from the original material which Messrs. Lake & Elliot submitted to us for brake drums and No. A1,156 was taken from the drum that gave trouble. Yours faithfully, FOR ROLLS-ROYCE LIMITED. | ||