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).
Preliminary tests of new type shock absorbers, comparing the movement of new plates against original plates.
| Identifier | ExFiles\Box 180\M3\M3.6\ img035 | |
| Date | 23th July 1919 | |
| To R.{Sir Henry Royce} from H.{Arthur M. Hanbury - Head Complaints} c. to Cl. c. to L. c. to DM.{D. Munro} ORIGINAL RE - NEW SHOCK ABSORBERS. X.3461. One set of the new type shock absorbers have run about 1000 miles on 1.E.K. 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 | .860 | 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 are 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. | ||