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).
Make-ratio speed curve for a new battery ignition contact breaker, comparing it to older and competitor models.
| Identifier | WestWitteringFiles\S\June1928-August1928\ Scan112 | |
| Date | 14th August 1928 | |
| To R.{Sir Henry Royce} from EFC. c. BJ. E.{Mr Elliott - Chief Engineer} c. BY.{R.W. Bailey - Chief Engineer} Wor.{Arthur Wormald - General Works Manager} X8692 R.{Sir Henry Royce} R.{Sir Henry Royce} BATTERY IGNITION CONTACT BREAKER. Attached please find copy of make-ratio speed curve of the new R.R. battery ignition contact breaker with scrubbing action. It will be seen that this is even better than the similar curve for the old contact breaker, which we issued under cover of and reported in our EFC1/T5.4.24, copy of which we now attach for your convenience. The curve is equally good with the Delco-Remy and somewhat better than the similar curve for the U.S.A. Bosch contact breaker. EFC1/T5.4.24. attached. EFC. | ||