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).
Modification to the servo linkage to increase brake rod force.
| Identifier | WestWitteringFiles\Q\April1927-June1927\ 13 | |
| Date | 7th April 1927 | |
| TO ~~BY.{R.W. Bailey - Chief Engineer}~~ FROM DA.{Bernard Day - Chassis Design} C. to ~~BJ.~~ HS.{Lord Ernest Hives - Chair} ORIGINAL DA{Bernard Day - Chassis Design}5/M7.4.27. EAC. 7. FRICTION HEAD IN SERVO LINKAGE. X7370 ~~X7300~~ ~~X7+70~~ With reference to the complaint that it is found impossible to get more than 16 lbs. in the front brake rod from the spring of N. sch. 2274., we send herewith N. sch. 2393., shewing a spring made of square wire, which, giving 640 lbs. with the same co-efficient of friction, ought to give 25 lbs. in the brake rod. The washers are slightly altered to accommodate the square wire. This is intended for the existing car. When the new gearbox is designed this point will be gone over again. DA.{Bernard Day - Chassis Design} | ||