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).
Performance and features of the Girling Brake system.
| Identifier | ExFiles\Box 120\3\ scan0054 | |
| Date | 3rd November 1933 | |
| Rm{William Robotham - Chief Engineer} GRY{Shadwell Grylls} x4456. To WGN. from E.{Mr Elliott - Chief Engineer} E.10/HP.3.11.33. c.c. Hs.{Lord Ernest Hives - Chair} Hy.{Tom Haldenby - Plant Engineer} Da.{Bernard Day - Chassis Design} re Girling Brake. I have been over the Girling Brake with Da.{Bernard Day - Chassis Design} and am of the opinion that this mechanism has much to recommend it and that we ought to obtain all the information we can regarding its performance and behaviour. The use of the swinging arm in place of shaft differentials for the front and rear brakes is very much along the lines we were considering for increasing the efficiency of the equalisers, and the application of the braking effort fore and aft on one side of the chassis only is a considerable advantage in itself in the chassis layout. The elimination of sponge and improved equalising are naturally the outstanding advantages offered but whether the mechanism for operating the shoes, together with the floating fulcrum would be entirely satisfactory requires further consideration. My own experience is that the floating fulcrum does throw considerable wear on one shoe but I understand our own shoes do not wear evenly. The Girling scheme appears to have some features which would give us an improved mechanical operation as a useful alternative to the hydraulic scheme. E.{Mr Elliott - Chief Engineer} | ||