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).
Booklet on the Midgley-Scholey chassis electrical equipment and its control method.
| Identifier | WestWitteringFiles\H\January1922\ Scan43 | |
| Date | 30th January 1922 | |
| To E.{Mr Elliott - Chief Engineer} from EFC. c. Ey. ORIGINAL EFC1/T30.1.22. X3374 RE MIDGLEY-SCHOLEY CHASSIS ELECTRICAL EQUIPMENT. I am sending you herewith booklet of the Midgley-Scholey system. It will be remembered that Mr. Midgley was the Chief Engineer of the C.A.V. Company, whose place is now taken by Mr. Glaser. We have already formed a high opinion of Mr. Glaser's capabilities as a designer of small dynamos and motors. We think Mr. Royce might be interested in this booklet as it describes a new method of control. It is perhaps not quite so easy to see how this works if what they say is true, namely, that there is no armature flux distortion, but in any case, we do not see where the advantage lies over the Smith system where we already get the four brushes running without any sparking trouble. Regarding their remarks under the heading "Battery Charging" re the vibrator regulator system, we do not agree with any of these. Our answer to the first is :- Since the ordinary dynamos pass most current into the battery when the battery is fully charged, whereas the vibrator regulator controlled machines pass least, the voltage on the lamps is certainly less with the latter than with the former, when the dynamo is running. To the second:- This is readily remedied by compoundin the windings of the magnet of the vibrator regulator. To the third:- If a battery gets so badly sulphated that 15 or 16 volts from the vibrator regulated | ||