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).
Car heater switches, comparing the inferior Clayton switch to the Lucas product.
| Identifier | ExFiles\Box 137\2\ scan0222 | |
| Date | 12th November 1938 | |
| 1158 To Hn.{F. C. Honeyman - Retail orders} c. to By.{R.W. Bailey - Chief Engineer} c. to By/RD. Rm{William Robotham - Chief Engineer}/Std.4/JH.12.11.38. Car Heater Switches. Referring to By/RD.3/B.7.11.38. in view of the fact that the two rheostatic switches in question are almost identical as regards size and method of fitting, we are unable to imagine what the little difficulties are, but we do not agree with the idea of giving the gustomer an inferior article in order to have the privilage of paying more for it. In the case of experimental cars fitted with the Clayton switch, the latter has given trouble on numerous occasions and is in all respects undesirable when compared with the Lucas product - we certainly will not take any responsibility for the Clayton switch if this is used. Rm{William Robotham - Chief Engineer}/Std. | ||