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).
Instructions for refitting a lightened type of road springs to a Bentley Chassis.
| Identifier | ExFiles\Box 87\4\ scan0054 | |
| Date | 28th February 1935 | |
| SUE. SUTG. C.C. RE/LCS. [text crossed out] BY/HEB{H. Biraben}33/M.28.2.35. BENTLEY CHASSIS. FRONT SPRINGS & FITTINGS SEC:7020. REAR SPRINGS & FITTINGS SEC:7033. RE FITTING LIGHTENED TYPE OF ROAD SPRINGS, TO FIRMS' DRG: NO: 122. Please receive herewith two Blue Prints of each of the following parts:- SEC.7020. FB.1951 Packing Block(Front Spring.) 2 off.ADDITIONAL. FB.1952 Centre Bolt.) FB.1953 " " } Select to suit. 2 off,replacing FB.668, FB.669, & FB.670. FB.1954 " " } FB.1955 " " } For this experiment with a Road Spring 1.090 thick, it will only be necessary to produce FB.1952. For all other particulars work to L.O.P. FB.993. SEC.7033. FB.1956 'U' Bolt(Rear Spring) FB.1957 "U" " " } To suit. 4 off,replacing FB.664-FB.666-7. FB.1958 "U" " " } FB.1959 Centre Bolt(Rear Spring) FB.1960 " " " " } To suit. 2 off,replacing FB.660-FB.662-3. FB.1961 " " " " } For this experiment with a Road Spring 1.350 thick, it will only be necessary to produce FB.1956 'U' Bolt, and FB.1959 Centre Bolt. For all other particulars work to L.O.P. FB.994. This completes our instructions for the job. [Handwritten text] Front packing can be deleted by alterning camber of spring BY/HEB.{H. Biraben} 14/4/35 | ||