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).
Secret memo discussing required leverage for a new brake operating system, referencing scheme 1783 and sending scheme 1787.
| Identifier | WestWitteringFiles\L\April1924-June1924\ Scan80 | |
| Date | 11th April 1924 | |
| ORIGINAL TO BY.{R.W. Bailey - Chief Engineer} FROM DA.{Bernard Day - Chassis Design} SECRET. DA{Bernard Day - Chassis Design}3/M11.4.24. Copy to - OC. RG.{Mr Rowledge} HS.{Lord Ernest Hives - Chair} E.{Mr Elliott - Chief Engineer} A.{Mr Adams} C. re.BRAKE OPERATING SYSTEM. M.DES. 60. +9940 In view of our experiences of the car with the agreed scheme of braking on Tuesday last we think we should be prepared to find that a greater leverage is required between the pedal and the brakes than the existing 40/50., and we suggest that we should have a multiplying lever as shewn on Nscheme 1783. but with proportions enabling us to vary this leverage with a view to ascertaining the best compromise between pedal pressure and the allowance for wear. We send N.scheme 1787. herewith. DA.{Bernard Day - Chassis Design} | ||