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).
Lower stressed throttle return spring for the Bentley Chassis.
| Identifier | ExFiles\Box 103\5\ scan0193 | |
| Date | 11th September 1937 | |
| c.c. RM{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux} GWH{George W. Hancock - Head Chateauroux} BY/CS2/EH.11.9.37. Re Bentley Chassis - Inlet Pipes - Section 5070. Carburetter - Section 5080. Lower Stressed Throttle Return Spring. Please receive herewith blue prints of the following parts. Section 5070. E.B.3428 Bracket Throttle Control Spring which replaces E.B.177. Section 5080. E.B.3429 Spring - Throttle Control which replaces E.51875. Will you please instruct as required, together with remainder of parts to LOP. E.B.2703 and E.B.2705 respectively. This completes instructions for experiment, the object of which to produce a lower stressed spring, and avoid the trouble experienced with the present spring, which stretches and takes a permanent set, thereby, does not completely close the throttle. Will Experimental Department please let us have their comments as soon as possible, owing to the numerous customers complaints. BY/CS. | ||