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).
Information about the Buick heat regulating valve for potential use on the Wraith.
| Identifier | ExFiles\Box 6\6\ 06-page026 | |
| Date | 21th December 1934 | |
| [Handwritten Note]: Steadman [Handwritten Note]: x404 [Handwritten Note]: 600? [Handwritten Note]: Please obtain necessary information [Handwritten Note]: Em To Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} from E/McS. E/McS.1/HP.21.12.34 Hot Spot Heat Control Valve - Wraith. We are proposing to use a similar type of thermostatically controlled heat regulating valve for the Wraith induction pipes to that used on the Buick engine, and we would be pleased if you could supply us with the following information about the Buick valve. (1) Material used for valve spindle and bushes. (2) Clearance between spindle and bush diameters. (3) If there is any trouble with exhaust gas leak, or with rattles, due to the clearance between the bushes and spindle being sufficiently large to avoid seizure. E/McS [Signature] | ||