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).
Sketch showing cross-sections for drilling holes in the intermediate journals of a Bentley crankshaft.
| Identifier | ExFiles\Box 103\2\ scan0048 | |
| Date | 24th February 1939 | |
| To: Hd.{Mr Hayward/Mr Huddy} R.{Sir Henry Royce} Cr.{Mr Cra???ster / Mr Chichester} RHO. GWH{George W. Hancock - Head Chateauroux} BY/SB{Mr Bull/Mr Bannister}4/MG24.2.39 BENTLEY CRANKSHAFTS Further to BY6/G.23.2.39, we give below a sketch showing a cross-section through the intermediate journals, so as to illustrate the additional drilling required. This applies to Nos. 2, 3, 5 & 6 intermediate journals. [Drawing A - Left] 120° TWO HOLES X .218 DIA A.{Mr Adams} If Modification C has not already been carried out. [Drawing B - Right] 90° TWO HOLES X .187 DIA. B. If shaft is already drilled to Modification C. BY/SB{Mr Bull/Mr Bannister}58 | ||