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).
Results of a reversal test on Pivot P.3783 and the subsequent decision to change the standard from F.3697/8 to F.3783/4.
| Identifier | ExFiles\Box 2\12\ B002_X168-page210 | |
| Date | 18th December 1913 | |
| J.{Mr Johnson W.M.} for H.{Arthur M. Hanbury - Head Complaints} 18.12.13. DA{Bernard Day - Chassis Design}2/G181213. In reply to your note R4/P151213, re reversal test on Pivot P.3783, I am not sure whether it is your wish that Pivots F.3697/8 should be all scrapped. We were not proposing here to scrap them as they are evidently very much superior to the pivots which broke, though of course the design is not ideal. Would you please confirm if it is your wish that all these now on cars should be changed, as the number involved is quite consid- erable. I am taking this note to be an author- isation to me to change the standard from F.3697/8 to F.3783/4, no more of the former type to be made even with a smaller hole. I have increas- ed{J. L. Edwards} the radius at the root of the stub to your instructions. These pivots will, of course, come out of the old forgings F.3697/8. Da.{Bernard Day - Chassis Design} [initials] [Handwritten on left margin]: H.817 | ||