Programme to modify 'SS' braking systems.
| Identifier | ExFiles\Box 12\5\ 05-page094 | |
| Date | 16th April 1929 | |
| 47420 To AJL. from Hs {Lord Ernest Hives - Chair} /Rn. {Mr Robinson} Hs {Lord Ernest Hives - Chair} /Rn {Mr Robinson} 4/LG16.4.29. 'SS {S. Smith} ' BRAKING. Attached is a copy of instructions to RHC. {R. H. Coverley - Production Engineer} re. the SS. {S. Smith} brakes. Our programme is to gradually supercede all the Tenoid with Ferodo bonded asbestos, or 'Ferobestos' as the cars come into the shop for modification. We do not think this alteration will affect the efficiency of the brakes much. We want to alter the efficiency by : 1. Getting 19-EX and 20-EX fitted with the rear brake countershaft supports. 2. Getting the servos lined with woven cotton discs or Ferodo. 3. If they are then too efficient, trying : (a) Lubrication of the woven cotton discs. (b) 45° cams with the Ferodo and dry cotton discs. On 20-EX we should like to try 45° cams at once to see if it prevents the present grabbing. We shall not get efficient braking on any car until we have the supports on the rear equaliser shaft. Hs {Lord Ernest Hives - Chair} /Rn {Mr Robinson} | ||
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).