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).
Front spring and buffer performance, including issues with clearance and breakages.
| Identifier | WestWitteringFiles\I\July1922\ Scan85 | |
| Date | 13th July 1922 guessed | |
| contd:- -2- reduced from 3" to 2.5" and the clearance between the spring and the buffer has been reduced from 2.6" to 2.1", that these springs do not give us any advantage of any increase in load before the springs bump on the buffer. We have sent one pair of these springs to France. So far they have not been fitted on to the car - they were lost in transit - they have now been recovered and should shortly be fitted. In order to avoid cars bumping on the buffers with the present standard front springs, most of the cars are running with stronger springs than they should have which increases the clearance between the spring and the buffer but makes the front of the car high. We feel that the latest springs with the increase rating would be satisfactory if it was not necessary to increase the thickness of the buffer by 1/8". We do not consider it has been proved that it is the fact of the front spring coming on to the buffer which causes them to break. On the bump rig on which we break any number of springs, the front springs do not strike the buffers. Hs.{Lord Ernest Hives - Chair} | ||