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).
Manufacturing approach for Silver Ripple Road Springs for post-war products.
| Identifier | ExFiles\Box 118\1\ scan0367 | |
| Date | 21th December 1943 | |
| 1022 To: FJH{Fred J. Hardy - Chief Dev. Engineer}/GB. from Rm.{William Robotham - Chief Engineer} Rm.{William Robotham - Chief Engineer} 6/h.{Arthur M. Hanbury - Head Complaints} 21.12.43. c. to Ev.{Ivan Evernden - coachwork} c. to FJH.{Fred J. Hardy - Chief Dev. Engineer} SILVER RIPPLE ROAD SPRINGS. I have been considering the best way to approach the leaf spring problem on the post-war Rolls-Royce products which have to sell at a reasonable price. I have come to the conclusion that we ought to approach the manufacturers whom we think are likely to produce the best article and get them to give us various specifications and prices based on an order for 5000 sets of springs. If they can stamp the grooves in the springs, the drilling should not cost much, provided we avoid the long hole through the eye. If we can get rid of surface decarburisation without grinding, the only reason for this latter operation would seem to be surface defects. The Americans never think of grinding, so surface defects are clearly not inseparable from plate manufacture. With metal gaiters and lubrication from the central system, I think we should have springs which are free from scales and durable, at a cost which is not much more than that paid for the mass produced article. Rm.{William Robotham - Chief Engineer} | ||