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 preliminary tests of new type shock absorbers, comparing them against the original plates with data on movement and friction.
| Identifier | Morton\M3.6\ img035 | |
| Date | 23th July 1919 | |
| To R.{Sir Henry Royce} from H.{Arthur M. Hanbury - Head Complaints} c. to C.I c. to N. c. to E.{Mr Elliott - Chief Engineer} c. to Da.{Bernard Day - Chassis Design} ORIGINAL RE - NEW SHOCK ABSORBERS. X3461. One set of the new type shock absorbers have run about 1000 miles on 1.E.X. chassis and another set have run about 900 miles on 49-GB. The preliminary tests on these shock absorbers gave us the impression that the maximum friction did not come into action soon enough. Below is a table which shews the movement on the end of the lever when the different stages of friction come into action. No. of plate. | Original Plate. | New Plate. | Remarks. ---|---|---|--- 1 | .890 | .360 | Free movement before shock absorber comes into action. 2 | 3.700 | 1.800 | - 3 | 6.380 | 3.200 | - 4 | 8.480 | 4.570 | - The other column also shews the movement with some new paltes which we made and fitted to 49-GB. We think that the new plates give us much better results than the original ones but we are not in a position yet to say that they're the best which can be done. We have examined the shock absorbers on 49-GB since the run and find that there is not the least sign of the plates. Contd. R.R. 235 A (100 T) (S.F. 575. 16-4-19) G.L. 2354. | ||