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).
List of modifications to front brake and steering components, including dimensions and materials.
| Identifier | ExFiles\Box 82\4\ scan0061 | |
| Date | 14th December 1934 | |
| (Cont'd) - 2 - BY/TWD{T. W. D???Aeith}1/E.14.12.34. (5). N.Sch.3979. Toggle Movements. Front Brakes. Used with Brake to N.Sch.3980. (See - Item 6.). (6). N.Sch.3980. Aluminium Brake Shoes. Front Brakes. 14.125 Drums. Toggle Cam Rad. altered from .365 to .525 Dia. of Brake Drum. " " 12.000 " 14.125 Width of Brake Shoe. " " 1.600 " 1.800 Thickness of Brake Lining. " " .312 " .375 Pivot Lean. " " 1º " 4º Water Baffle Type Mud Excluder. (7). N.Sch.4005. Stiffened Front Brake Shoe Mounting - to suit 14.000 Dia. Drums. Carrier Plate.(Outer). Material altered from A.{Mr Adams} to S/MD. " " Thickness " " .160 to .175 Carrier Plate.(Inner). " " " " .104 to .128 " " (Outer). modified in Profile. (8). N.Sch.4006. 1º Pivot Inclination and 14.000 Dia. Drums. Cross Steering Lever to suit. Dia. of Brake Drum. altered from 12.000 to 14.000 Cross Steering " " 5.500 " 6.375 Lever Centres. Mud Excluder for Cross Steering Ball Pin to N.Sch.3848. BY/TWD.{T. W. D???Aeith} | ||