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 Bendix Ltd. regarding the patent status and origin of a Borg & Beck servo arrangement illustration.
| Identifier | ExFiles\Box 142\3\ scan0121 | |
| Date | 5th February 1937 | |
| (Experimental Dept.) 12049 Rm{William Robotham - Chief Engineer}/Gry{Shadwell Grylls}9/R.{Sir Henry Royce} 5th February, 1937. Capt. J.S. Irving, Bendix Ltd., Tysley. Dear Capt. Irving, Thank you for your letter of the 4th. I am afraid I do not know whether the Borg & Beck servo arrange-ment is patented or not. I took my illustration from the "Automobile Engineer" of sometime in 1935. An almost exactly similar arrangement is described on page 747 of "The Motor" of November 6th, 1928, for use in brake systems. Yours faithfully, For ROLLS-ROYCE LTD. | ||