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 Spectre Brakes with the addition of pull-off springs.
| Identifier | ExFiles\Box 92\4\ scan0024 | |
| Date | 29th October 1934 | |
| To D.I. Copy to W.G.S. Hs.{Lord Ernest Hives - Chair} H.D.P. H.J.H. ----------------- Rm{William Robotham - Chief Engineer} 44694-306 DA.{Bernard Day - Chassis Design}1/MN.29/10/34. ----------------- SpectreCodename for Phantom III Brakes. Pull off Springs. Instead of concentrating the pull off springs on the shoes, as originally intended, it seems better to provide an additional pull off spring on each brake between the adjustment and the pedal and reduce the springs on the shoes, as this reduces the load required to operate the adjustment. We have accordingly prepared N Sch. 4242 showing the proposed additional springs for both front and rear brakes. DA.{Bernard Day - Chassis Design} | ||