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).
The investigation into increasing the diameter of studs and bolts for the B.V. steering column.
| Identifier | ExFiles\Box 100\2\ scan0106 | |
| Date | 18th April 1939 | |
| BY/MS C. Rm{William Robotham - Chief Engineer} c. Rm{William Robotham - Chief Engineer}/FJH{Fred J. Hardy - Chief Dev. Engineer} c. De/JD{J. Draper - Frames} 450 DA.{Bernard Day - Chassis Design}6/G.18.4.39. B.V. STEERING COLUMN. FJH{Fred J. Hardy - Chief Dev. Engineer} Further to Rm{William Robotham - Chief Engineer}/FJH.{Fred J. Hardy - Chief Dev. Engineer}5/MH.{M. Huckerby}13.4.39. we have investigated the possibility of increasing the diameter of the studs between the steering box and the support bracket from .250 to .3125, and agree it can be done, the diameter of the holes in the support bracket should be .3437 diameter. To increase the diameter of the bolts between the frame and the support bracket, we should have to alter the forgings FB.3737 of which we have 300 in stock. As the diameter of these bolts is .3125 at present, we suggest it should be adequate for the job. DA.{Bernard Day - Chassis Design} | ||