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).
Governor spring data specifications for the Continental Bentley distributor.
| Identifier | ExFiles\Box 168\3\ img124 | |
| Date | 30th March 1939 | |
| To, By/RD. c. to By c. to Rm{William Robotham - Chief Engineer}/cwd? Rm{William Robotham - Chief Engineer}/RC.{R. Childs}1/JH.30.3.39. re Distributor to T.P.DF.2300. Continental Bentley. The governor spring data for obtaining the required characteristic on the above is as follows :- (see Rm{William Robotham - Chief Engineer}/rwd1.13/Mh.{M. Huckerby}22.2.39). Main Spring. Auxiliary Spring. Load............................... 1 lb. 12 oz. 2 lb. 4 oz. Length............................. .450 inch. .600 inch. Radius of loading.................. .675 inch. .675 inch. Total deflected angle.............. 170° 170° Free angle......................... 115° 140° Inside diam. of coil............... .276 inch. .276 inch. Number of effective coils.......... 3 1/2 5 1/2 Diameter of wire................... .048 inch. .064 inch. Rm{William Robotham - Chief Engineer}/RC.{R. Childs} | ||