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).
Cause of squeaky brakes related to water and proposing a new spring and block damper design.
| Identifier | ExFiles\Box 5\3\ 03-page115 | |
| Date | 19th April 1925 | |
| X4257 To HS.{Lord Ernest Hives - Chair} DA.{Bernard Day - Chassis Design} from R.{Sir Henry Royce} c. to CJ. RG.{Mr Rowledge} BY.{R.W. Bailey - Chief Engineer} c. to PN.{Mr Northey} E.{Mr Elliott - Chief Engineer} R3/M19.4.25. SQUEAKY BRAKES. X.4257 X.4259 I had not been able to understand why we at WW. were never troubled with squeaky brakes - (we have plenty of water but no pressure,) but Dodd tells me that when he has no water pressure to wash the car he has no brake squeaks, and conversely, hence it seems rather like well washed cars with wet or rusty drums, squeak. Kindly confirm. The dampers so far suggested by all of us have objections of clumsy weight, much work, or ineffectiveness. We must try again. The front brakes are quite a simple type, and there are no complaints. The 40/50 back has ribs, the 20 HP. has longer drum and edge damper. I suggest very stiff spiral spring with aluminium blocks under a try a design. R.{Sir Henry Royce} | ||