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).
Mr. Royce's design preferences for a 40/50 chassis oil level indicator, comparing it to a Marmon gauge.
| Identifier | ExFiles\Box 32\5\ Scan200 | |
| Date | 16th December 1922 | |
| To Hs.{Lord Ernest Hives - Chair} from E.{Mr Elliott - Chief Engineer} c. to CJ. BY.{R.W. Bailey - Chief Engineer} EP.{G. Eric Platford - Chief Quality Engineer} X1692 E8/M16.12.22. 40/50 CHASSIS - OIL LEVEL INDICATOR. X.3527 X.1692 Referring to scheme No.418, Mr. Royce would like you to use a circular glass tube in a slotted brass cover for the indicator portion of the mechanism, arranged so that it is possible to see right through, and with the scale marked on the side. The general idea of the scheme he agrees with, but thinks that a smaller hole could be used for the connection to the crankcase, and that it might be advisable to guide the float and pointer by means of the rod instead of the float. What do the Marmon do with respect to this point, and can you send the Marmon gauge to WW. for inspection, and one of the proposed RR. gauges if there is one made? MADE AT CROXLEY E.{Mr Elliott - Chief Engineer} | ||