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).
Modifications to the Benesport servo brake system to reduce friction and alter leverage.
| Identifier | ExFiles\Box 179b\1\ img244 | |
| Date | 19th December 1932 | |
| DY.{F R Danby} FROM DA.{Bernard Day - Chassis Design} C. to ED.{J. L. Edwards} WOR.{Arthur Wormald - General Works Manager} WS. HS.{Lord Ernest Hives - Chair} BENESPORT SERVO. On N. sch. 3610. we shewed a method of picking up the scissors lever directly so as to eliminate an extra rod to the balance lever. This scheme has the disadvantage of introducing some friction to be overcome by the pedal in applying the brakes. In order to reduce this friction as much as possible we send herewith a further scheme - N. sch. 3626. - shewing a roller introduced between the scissors lever and the servo shoe carrier. The first Benesport should be fitted up in this way. It will be noticed that the leverage has been slightly altered, and we desire to modify the rod to the balancer lever shewn on N. sch. 3604. to the type having a solid eye at each end, and no provision for adjustment. DA.{Bernard Day - Chassis Design} | ||