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 condition of various vehicle components including axles, brakes, springs, and shock absorbers.
| Identifier | ExFiles\Box 71\4\ scan0289 | |
| Date | 6th July 1925 | |
| R.R. 493A (50m) (D.B. 175 25-9-24) J.H.D. EXPERIMENTAL REPORT. -6- Expl. No. REF: GWH{George W. Hancock - Head Chateauroux}1/Crn6.7.25. almost equal to the old clutch. Front axle. This is still in good condition. Axle pivots. Modified axle pivots to N.Sch.1896. Distinct wear is now noticeable in the brgs. N.S. shews more wear than the O.S. Front brake mechanism. Modified operating shaft with larger bearings to N.sch.1895. These are still in a fair condition. There is a slight wear noticeable in the bearings, but this is not detrimental to the working of the brakes. Pull rods operating these shafts have worn considerably at the ball ends. All adjustment has been taken up that is possible. There is now quite a lot of slack in these couplings. Front brake drums and shoes. New shoes were fitted at Paris, but these are not our standard shoes as the Paris Depot did not stock these. The fabric is of a much softer material, and is wearing quickly. We also had the brake drums skimmed up at the same time. There are now slight score marks. Front brake operating shafts on axle. These are in a fairly good condition. Slight wear is noticeable in the bearings. Front brake equaliser situated at rear of O.S.F.spring. The bearing for the equaliser spring housing - considerable wear has taken place. This is the worst feature of the front brake mechanism. Front springs. O.S.F. spring has been replaced by one sent from Derby. This replaced the temporary one fitted. The broken spring, as reported, had run 10,811 miles. N.S.F. spring is still O.K. Front shock absorbers. We have dismantled these and found that the serrations had become rusted up, preventing the action of the spring upon the leather cones. We have made these O.K. Rear axle. We have had no trouble with this, but it has become noisy on pick-up and retard. Rear brake operating mechanism contd :- | ||