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 The S.U. Company discussing a chart that shows the performance differences between three carburetter needles following modifications to an induction pipe.
| Identifier | ExFiles\Box 31\5\ Scan009 | |
| Date | 23th January 1933 | |
| E Please note & return 81487. S.U. CARBURETTER FLEXIBLE SILENT TELEPHONES: EAST 1662 AND EAST 1663. General Manager: T.C. SKINNER. THE S.U. COMPANY. PROPRIETORS: MORRIS INDUSTRIES LTD STATION: ADDERLEY PARK, L.M.&S.Rly East Works, Bordesley Green Road, Adderley Park—Birmingham. THE SOCIETY OF MOTOR MANUFACTURERS & TRADERS TELEGRAMS: FLEXCARBUR, BIRMINGHAM. Your Ref. Our Ref. TCS/DR Jan. 23/33. [STAMP: 30 JAN 1933] W.A.Robotham Esq., Messrs. Roll-Royce Ltd., DERBY. [STAMP: RECEIVED] Dear Mr. Robotham, I am enclosing herewith chart showing the difference/in the needles necessary with the various modifications we have been making to your pipe. You will notice that No.1 is definitely the best, No.2 (that is with the carburetters fitted on to the end of the induction pipe) is very nearly equal to it, but No.3, of course, is definitely bad, as is shown by the extraordinary bump in the middle of the needle. I shall be glad to hear how things are going. Kind regards. Yours sincerely, [Signature of T.C. Skinner] [Initialed: JN] [Signature] [LOGO: ENGINEERING AND ALLIED EMPLOYERS' NATIONAL FEDERATION 1896] | ||