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).
Proposed new front axle control for the Phantom model and an urgent related experiment.
| Identifier | WestWitteringFiles\P\2October1926-December1926\ Scan094 | |
| Date | 4th December 1926 | |
| TO BY.{R.W. Bailey - Chief Engineer} FROM DA.{Bernard Day - Chassis Design} C. to - DJ. HS.{Lord Ernest Hives - Chair} ORIGINAL FRONT AXLE CONTROL. 16085DA{Bernard Day - Chassis Design}3/M4.12.26. Y8420 X235 Hs{Lord Ernest Hives - Chair} Y8430 X8230 ? 1928 We send herewith N. schs. 2293/4. Shewing the proposed front axle control, using the spring as one arm, and the shock damper as the other. It has been arranged to suit the present Phantom with the new axle. The principle modifications are a new axle forging a modified side steering lever which we think can be made from the existing forging, modified exhaust pipes, (we have shewn a method of using the existing manifold as a temporary expedient) modifications to the engine timing gear-case, and vibration dampers. Particulars of these latter will follow in a day or two. We have fixed on a length of lever for the shock damper based on the assumption that the spring bends in the arc of a circle. If this is not so it may cause some rather severe loads on the joints of the mechanism, and we therefore think it would be well to verify this length in some simple way before completing the details of the scheme as shewn. We suggest for instance that if a pointer were mounted on the axle of the same length as the connecting rod, and made to press against a painted sheet, and the car bounced, it would give an indication of the path which the end of the shock damper arm ought to follow, and so enable us to get very near the exact length of the latter. We have shewn the shock damper with a free position in the centre: whether this one is used or not depends on the success of the experiment with the original shock absorber of this type. This does not affect the main parts of the experiment. This experiment is regarded as being very urgent. DA.{Bernard Day - Chassis Design} | ||