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).
Notes and summary of particulars for Scintilla and R. Bosch dynamos.
| Identifier | ExFiles\Box 50\1\ Scan251 | |
| Date | 5th June 1924 | |
| X4290 5.6.24. SCINTILLA & R.{Sir Henry Royce} BOSCH DYNAMO NOTES X.4582 X4290 SCINTILLA DYNAMO. Summary of particulars. Cold O.C. volts. 10 12.4 17. Relay in 18.85 volts out 8.2 " Speed. 45 Cutout in 12.6 volts, out 7.0 volts. Hot. O.C. volts. 10 13.6 17 Relay in 24.8 volts, out 10.8 " Speed. Cutout in 17.5 volts, out 10.0 volts. R.BOSCH.No.41293. Shunts of reg. and cutout in parallel. Before operating 25 ohms, after operating 30 ohms. Peripheral speed of comm. 2.2" dia. at 5000 r.p.m. = 2880 ft/m.{Mr Moon / Mr Moore} For 2.1" dia. (gos.) 2750 ft/min. Current densities. At 15 L each. Gos..225sq" -66.7 L/sq." R.Bosch .3 sq." - 50 L/sq.". Scintilla .308sq." = 48.7 L/sq." | ||