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).
On brake drum overheating with Ferodo liners and the recommended solution for 2700 series cars.
Identifier | ExFiles\Box 26\4\ Scan061 | |
Date | 17th March 1915 | |
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... Ch Mr. CHAMBERLAIN Ce Mr. CHICHESTER 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 Eu EUROPE Hy{Tom Haldenby - Plant Engineer} Mr. HALDENBY H Mr. HALLAM Mr. HANBURY J Mr. JOHNSON JS{Mr Johnson's Secretary} Mr. JOHNSON'S Secretary BJ Mr. BASIL JOHNSON... K Mr. KILNER Mac{Mr Macintosh} Mr. MACKINTOSH Mer Mr. MERCER 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} Mr. SPINNEY VIENNA Mr. WALLIS ... Whr{Mr Wheeler} Mr. WHEELER... Wd{Mr Wood/Mr Whitehead} Mr. WHITEHEAD Wor{Arthur Wormald - General Works Manager} Mr. WORMALD Initial of person addressed: Wor.{Arthur Wormald - General Works Manager} for Mcr. (2). 17.3.15. By2/P17315. on the other. The reason for this, is that we have found that if a Ferodo lined central brake is used continuously the drum becomes excessively hot, and more so than if cast iron liners were used, and that it would result in the warping of the drum. However, if he has to deal with any cars of 2700 series or later, then he must not use Ferodo liners unless he can adopt, and at the same time obtain delivery of, our large ribbed air cooled drum, as otherwise the brake drum will expand so rapidly as to clear itself from the action of the shoe, as under the circumstances the brake would of course become inoperative. By.{R.W. Bailey - Chief Engineer} By This sheet must be filed with the correspondence to which it refers. | ||