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).
The fitting of a Lockheed Hill-holder to hydraulic brake systems.
| Identifier | ExFiles\Box 121\1\ scan0278 | |
| Date | 16th May 1940 | |
| Ev.{Ivan Evernden - coachwork} from Rm{William Robotham - Chief Engineer}/MHR.{M. H. Rigby} Rm{William Robotham - Chief Engineer}/MHR.{M. H. Rigby}9/ML.16.5.40. 1089 re LOCKHEED HILL-HOLDER. We enclose particulars of the Lockheed Hill-holder, for fitting to hydraulic brake systems. One of these is to be fitted to the front brake system of an existing chassis. Will you please add this item to the specification of the Rippletto in the rear brake system. Rm{William Robotham - Chief Engineer}/MHR.{M. H. Rigby} | ||