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).
Sensitivity and testing of Bijur vibrator voltage and current regulators.
| Identifier | ExFiles\Box 180\M2\M2.3\ img018 | |
| Date | 26th July 1920 | |
| R.R. 258a (100 T) (S.G. 648. 19-2-20) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 9318 ORIGINAL. To R.{Sir Henry Royce} from EFC. c. to CJ. c. to E.{Mr Elliott - Chief Engineer} c. to PN.{Mr Northey} c. to Cy. c. to Bn.{W.O. Bentley / Mr Barrington} c. to Ds. f.{Mr Friese} to Hs.{Lord Ernest Hives - Chair} X.1402. - VIBRATOR VOLTAGE & CURRENT REGULATORS X.3878 X.3560. - BIJUR VIBRATOR REGULATOR. X.4162 Further to our EFC1/T22.7.20, we feel that owing to the great sensitiveness of vibrator regulators, and in particular of the Bijur regulator with which we have had experience, both in connection with the Packard Car and with the 12 volt Bijur combined dynamo and regulator sent from America, (although we obtained reasonably satisfactory results in our first series of tests made from the equipment taken from 49-GB), we do not feel at the moment in a position to recommend this type of regulation as standard equipment, but would prefer to have an opportunity of thrashing this out somewhat more thoroughly. We do not yet know whether the great sensitiveness of which we speak is peculiar to the Bijur regulator, but it is nevertheless a fact, in our experience at any rate, that on this particular type of regulator, slight alterations in operating conditions, e.g. taking the regulator from the inside to the outside of the box, even though still mounted on the dynamo, but without any other alteration, affected the operation appreciably, the differences being of | ||