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 from consulting engineers regarding the use and adoption of composite steel brake drums by other manufacturers.
| Identifier | ExFiles\Box 120\3\ scan0078 | |
| Date | 29th December 1933 | |
| J.{Mr Johnson W.M.} H.{Arthur M. Hanbury - Head Complaints} PRATT. GILBERT MANLEY. PRATT & MANLEY, CONSULTING ENGINEERS. 23 GUILDHALL BUILDINGS, NAVIGATION STREET, BIRMINGHAM. TELEPHONE: MIDLAND 4130. Your Ref: HS{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer}7/KT. Ours. WBB. Dec. 29th. 1933. Messrs. Rolls Royce Ltd., Derby. Dear Sirs, Re Composite Steel Brake Drums. We would refer you to our letter of the 3rd November on the above subject and should be glad to know if we may interest you further. We would add that three manufacturers of high class fast cars have standardised these drums. one of these firms have been fitting the drums for nearly twelve months on a 20 HP Speed model, and the satisfactory results have been such that they are being continued for 1934, further this firm has adopted the drums on a new model lighter car. Trusting to interest you further. Yours faithfully, For Pratt & Manley, W.G. Bayli GRY{Shadwell Grylls} X4456 | ||