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 regarding the material composition and treatment of bonnet rest strips, including the potential for graphite impregnation.
| Identifier | ExFiles\Box 119\4\ scan0037 | |
| Date | 23th November 1936 | |
| EDD. BRITISH BELTING & ASBESTOS LTD. TELEPHONE: HOP 0192 (4 LINES). TELEGRAMS: INDUSTRIAL DEPT. SCANDINAVIA BOROH LONDON AUTO DEPT. ASBESTOS DEPT. AMIANTE BOROH LONDON EXPORT DEPT. SCANDILEX LONDON ALL CODES. 59 SOUTHWARK STREET LONDON · S·E·I WORKS: CLECKHEATON, YORKS. TELEPHONE 318. TELEGRAMS: BELTING, CLECKHEATON. Messrs. Rolls-Royce Ltd., DERBY. YOUR REF. Rm{William Robotham - Chief Engineer}/Std.15/AP. OUR REF. EL/NB/AUTOS. DATE 23rd November.1936. [Handwritten Signature] STEADMAN Dear Sirs, We duly received your letter of the 18th inst., on the subject of Bonnet Rest Strips, and we have now pleasure in enclosing a sample of the material we believe will best meet your requirements. With regard to the question of impregnating this with graphite our Works report that by the use of colloidal graphite it is possible to get a certain amount of penetration though it is not possible to say whether this will go right through. They consider however, that the wax dressing with which this fabric is treated renders it just as suitable for your purpose as a dressing containing graphite. If you will therefore kindly advise us whether the sample meets with your approval and also the quantity you will require we will forward our quotation immediately. Assuring you always of our best services. We are, Yours faithfully, BRITISH BELTING & ASBESTOS LTD [Handwritten Signature] Service Dept. | ||