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).
Outlining necessary improvements and features for the magneto on the 20 HP car.
| Identifier | WestWitteringFiles\J\February1923\ Scan33 | |
| Date | 6th February 1925 | |
| To R.{Sir Henry Royce} from Hs.{Lord Ernest Hives - Chair} c. to CJ. c. to E.{Mr Elliott - Chief Engineer} c. to Da.{Bernard Day - Chassis Design} c. to BY.{R.W. Bailey - Chief Engineer} ORIGINAL. Hs{Lord Ernest Hives - Chair}5/LG6.2.25. MAGNETO FOR 20 HP. CAR. V3557 There are one or two points which have been brought out in running Magnetos on the 20 H.P. cars which we consider should be incorporated on the cars as soon as possible :- 1. The spring locked ball joint for the contact breaker control. This is a very necessary feature and it should be fitted to all cars having a magneto. 2. Serrated joint with spherical seating and spring loaded in order to damp the drive and avoid rattles. This is also a desirable feature to get on the cars as soon as possible. 3. On the Magneto Control we use a long length of 3.BA rod for one of the push and pull control rods. If the magneto is at all stiff the 3.BA rod buckles badly. The sleeve type Watford magnetos are arranged with a certain amount of friction on the contact breaker advance and retard to avoid the rattles caused by the drag of the armature on the sleeve. Hs.{Lord Ernest Hives - Chair} | ||