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).
Recommending the Delco electrical system from a Marmon car for adoption, and comparing it to a Bosch switch.
| Identifier | WestWitteringFiles\G\July1921\ Scan38 | |
| Date | 1st July 1921 | |
| To C.J. from R.{Sir Henry Royce} he -3- R10/G22/7/21 Contd. Delco from the Marmon is distinctly good.* with few exceptions it is difficult to imagine anything much more suitable when adapted for our particular requirements. I should strongly recommend Springfield to adopt this make (unless they find something still more advantageous) It would appear that their electrical equipment will be rather a mixed one. We are not sure whether it is possible for the Delco people to embody a charging switch, but I think such a switch should be provided to avoid over-charging the battery during the summer months. It might, however, be considered advisable to embody the charging switch with the mounting of the ammeter. It would separate and simplify matters, and the inspection lamp socket might also be included in this ammeter mounting. The press button for the dashboard light should be very conveniently situated relative to the driver's hand, therefore with the ignition switch. On our new cars, it is, the right hand, where these should be, rather than near the ammeter which would probably be near the centre of the car. Regarding the Bosch switch, mechanically and electrically this does not seem to be a very good piece of mechanism. The case also appears too big with too much face, and although the finish is nicely carried out, we do not think it would keep in very good condition owing to the extensive plain surface. We assume that while we are using the double wiring we shall want a distributing board on the lines of the R.R., but we think it would be quite a good move to substitute the Delco buzzer for the fuses. This would make the distributing board somewhat less complicated, although it would not be any smaller, as the buzzer would take up about as much room as the fuses. (Contd.) | ||