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).
Crankshaft material, ignition systems, valve gear, and a planned visit to US automotive plants.
| Identifier | ExFiles\Box 173\1\ img190 | |
| Date | 20th January 1934 guessed | |
| -6- CRANKSHAFT Will be made in soft material and possibly balanced although unbalanced crankshafts have been tried. They intend to adopt the soft crank on account of reduction in cost and also the fact they consider lead bronze to be perfectly reliable with the soft type of shaft. Ignition Whilst not definitely settled it is proposed to use battery ignition with the two distributors arranged on end of each cam shaft. Valve Gear. Four valves per cylinder operated with rockers off single cam shaft as R.R. practices. ----------------- In between bearing tests which will take, under present conditions, two or three days to change over, I am trying to arrange visits to Detroit (General Motors) Wilcox-Rich and also to Cleveland to the casting, forging and lead bronze plants. R.H. Coverley. | ||