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).
Components for manufacturing five different condensers for battery ignition.
| Identifier | ExFiles\Box 34\1\ Scan047 | |
| Date | 18th March 1919 | |
| To Mr. Coverley. from BY/HBO. X.2512. c. to EFC. BY/HBO2/DW18.3.19. X.3129 -CONDENSER FOR BATTERY IGNITION SEC: 7370. Herewith Arrgt. drawing F.7181. and complete set of details to enable you to manufacture same :- Mica Plates. F.7167. Tinfoils. F.7168. Tinfoils. F.7169. One to consist of 95 40 40 A .11 One to consist of 105 50 50 B " 125 60 60 C " 145 70 70 D " 165 80 80 E i.e. 5 complete condensers of varying capacity. You will notice on the brass clips for the condenser we have left off several dimensions, so you can vary these to suit the above condensers. Will Mr. Clark kindly let me know as soon as possible on receiving the above, the most suitable condensers, I can then arrange my drawings to suit. BY/HBO. | ||