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).
Proposing a new paragraph for an instruction book regarding engine detonation, also known as 'knock' or 'pinking'.
| Identifier | ExFiles\Box 26\2\ Scan026 | |
| Date | 9th January 1914 | |
| R.R. 537. (100H) (VV. 240. 17.12.13) E.P. 5598. ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 476 (FOUR LINES). Names and indicating letter. Initial of person addressed. A Mr. ADAMS By Mr. BAILEY Bn{W.O. Bentley / Mr Barrington} Mr. BARRINGTON B Mr. BEREND Bt{Capt. J. S. Burt - Engineer} Mr. BURT Cn{Mr Chamberain} Mr. CHAMBERLAIN C Mr. COWEN Cx{Major Len W. Cox - Advertising Manager} Mr. COX D Mr. DeLOOZE Da{Bernard Day - Chassis Design} Mr. DAY E Mr. ELLIOTT F Mr. FRIESE G Mr. GNAPP Hy{Tom Haldenby - Plant Engineer} Mr. HALDENBY H Mr. HALLAM Hm{Capt. W. Hallam - Head Repairs} Mr. HANBURY J Mr. JOHNSON JS{Mr Johnson's Secretary} Mr. JOHNSON'S Secretary K Mr. KILNER Mac{Mr Macintosh} Mr. MACINTOSH M Mr. MOON Na{Mr Nadin} Mr. NADIN PN{Mr Northey} Mr. NORTHEY O Mr. OLDHAM Pa{Mr Paterson} Mr. PATERSON EP{G. Eric Platford - Chief Quality Engineer} Mr. PLATFORD Rn{Mr Robinson} Mr. ROBINSON R Mr. ROYCE RS{Sir Henry Royce's Secretary} Mr. ROYCE'S Secretary JR{Mr James Royce} Mr. JAMES ROYCE S Mr. SANDERSON LHS{Lord Herbert Scott} LORD HERBERT SCOTT Sp{Mr Spinney} 'r.{Sir Henry Royce} SPINNEY V VIENNA Wa{Mr Wallis} Mr. WALLIS Whr{Mr Wheeler} Mr. WHEELER Wd{Mr Wood/Mr Whitehead} Mr. WHITEHEAD Wor{Arthur Wormald - General Works Manager} Mr. WORMALD Re Instruction Book. X995. Na{Mr Nadin}/S14/LG9114. 9.1.14. Wor{Arthur Wormald - General Works Manager} for Expt. Dept. EP.{G. Eric Platford - Chief Quality Engineer} On bringing the matter before Mr. Royce with regard to the use of the word "Knock" Mr. Royce now suggests the following alternative paragraph, and we shall be glad to have your approval of the same before inserting in the above book:- "All engines which have a good and accurately adjusted carburetter are liable to detonate, which causes a sound usually called "chirping or pinking". Occasionally it is thought to be pre-ignition, but this is not so. This tendency is greatly increased by the presence of carbon in the combustion chamber. It can be avoided by transferring the magneto plug to what we term the intermediate position; a brass plug will be found in this portion of the cylinder. This detonating sound is caused by the very rapid combustion of the explosive mixture. It does not appear to do any harm, but is irritating. It only takes place with very rapidly burning fuels, and not with benzol or alcohol, which burn comparatively slowly" [Handwritten note] Mr Mercer Reminds this before Na.{Mr Nadin} J 12/1/14 Exp dept. Wor.{Arthur Wormald - General Works Manager} [Stamp] RECEIVED 10 JAN W.M. This sheet must be filed with the correspondence to which it refers. | ||