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).
Description of Scott, Liberty Dynamo, and Westinghouse Dynamo & Vibrator regulators.
| Identifier | WestWitteringFiles\J\November1922\ Scan77 | |
| Date | 14th November 1922 guessed | |
| (4) Scott Regulator. Series of carbon plates with varying pressure, shunted by a non-inductive resistance, in series with the main field winding. Main operating coil either series or shunt or combination as required. (5) Liberty Dynamo & Regulator (8 volt) A pair of vibrating metallic contacts connected in series with the main field winding and in parallel with them a resistance. The main operating coil is across the voltage of the system. A second coil with a subtractive magnetic effect is connected in parallel with the contacts and resistance. (6) Westinghouse Dynamo & Vibrator Regulator. A pair of vibrating metallic points shunted by a resistance also by another resistance in series with a condenser is placed in series with the main field winding, the main field current also being caused to go round a coil on the operating core in an additive direction. The main operating shunt coil is across the voltage of the machine, the whole output of the machine, except the current for the field coil, is caused to traverse a series winding in an additive direction. There is no resistance in parallel with the field winding. The regulator has a definite top limit and the speed range is not as high as in other cases. | ||