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).
Solutions for steering wobbles when using 7' Palmer tyres.
| Identifier | ExFiles\Box 28\4\ Scan149 | |
| Date | 26th June 1915 | |
| COPY. [Handwritten] 29615- No 1 Proceed with these experiments H R or J Royce To J.{Mr Johnson W.M.} from R.{Sir Henry Royce} Copy to Wor.{Arthur Wormald - General Works Manager} for Hy.{Tom Haldenby - Plant Engineer} " " Da.{Bernard Day - Chassis Design} R2/IB26615. June 26th. 1915. Re Steering Wobbles with 7" Palmers. ----------------------------------- With reference to steering wobbles and the 7" Palmer tyres, there is no better way of dealing with this than by letting the works have a pair of Palmer tyres to experiment with. They should be fitted on to a car where the steering has been fitted up particularly free, though not with much back lash. An experiment might be made with centre point steering, and with the wheels as far away from the centre as we have ever fitted them. This would be very interesting and provide us useful knowledge of how to deal with awkward cases. The second point to test would be the entire removal of all elastic connections between the road wheels and the steering wheel, except the unavoidable bent longitudinal steering tube. Even this might temporarily be made more rigid. I am assuming that the pivots are to be used with the normal loading of the car exactly vertical. It must be remembered however, that with a car very heavily loaded behind, a backward lean would come in, which might start up steering wobbles if the cause is very sensitive. With reference to creating a little friction in the steering gear, this, one feels, should be applied on | ||