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).
Experimental changes for Bentley front brakes, including altering the brake carrier material from aluminium to steel.
| Identifier | ExFiles\Box 84\2\ scan0114 | |
| Date | 6th March 1934 | |
| x206 To BY.{R.W. Bailey - Chief Engineer} from Da.{Bernard Day - Chassis Design} c. Wor.{Arthur Wormald - General Works Manager} E.{Mr Elliott - Chief Engineer} Hs.{Lord Ernest Hives - Chair} Hey. RHo. Da.{Bernard Day - Chassis Design}2/HP.6.3.34. GREY [handwritten signature] Bentley - Front Brakes. In view of the results obtained experimentally by changing the material of the outer brake carrier from alum. to steel, we should like to test this further and send herewith N. Sch.4004, in which the present circular sheet of alum. is replaced by a steel carrier cut away where it is not required for carrying brake parts, while the present dust excluder is extended to cover in the whole of the brake. so The carrier is slightly thickened/ too is the inner carrier, which is already in steel. There is also shewn a method of using reamed fulcrum pins for the shoes, to avoid variation in the bedding after dismantling, which, as it is now very simple, might be tried. We have shewn this experiment for the existing 12" drums so that it can be tried at once. On N. Sch.4005 is shewn the adaptation to 14" drums, should it prove successful. Da.{Bernard Day - Chassis Design} | ||