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 chassis components including brakes, axles, steering, springs and headlights after testing.
| Identifier | WestWitteringFiles\N\2October1925-December1925\ Scan250 | |
| Date | 10th October 1925 guessed | |
| - 6 - Front brake operating shafts on axle. The bearings of these are still in good condition, & shafts have operated satisfactorily. Axle pivots, with modified operating shafts with larger bearings, & lubrication on top of pivots to EX. 951. Front brake pull rods to N.S. 1780, otherwise to L.O.P. F.72403. Lean of pivots 0.150". The bearings of pivots are still O.K. It has been necessary to adjust pull rods, as a slight amount of slack in these had developed. The bearings of operating shafts are in good condition. Steering arms, side steering tube & cross steering tube. Bolts holding steering arms have remained secure. It has not been necessary to adjust cross steering tube. Examination of side steering tube springs finds them to be quite O.K. Front road wheels, parallel track. We have had no trouble with these, & have found no detrimental wear of tyres. Front brakes, drums & shoes. The front brakes have worn considerably during the continuation of the test. The full adjustment of brakes has now been taken up. There is no improvement as regards the non squeaking material of shoes, as towards the end of the test the squeaking was equally as apparent as with the standard ferodo linings. We do not consider this material to be as good as the present standard. It has rapidly worn, especially so on the toes of brakes. Examination of brake beddings shewed these to be bearing hard on the heel of either shoe. It will be necessary to reline these after the completion of 10,000 miles. Examination of brake drums - these have worn & have become grooved. Front brake equaliser, to L.O.P. F.73224. The equaliser has functioned O.K., & bearings of same have remained good. There has been no further end play developed during the continuation of the test. Front springs. The two front springs from an outside examination still appear to be in good condition. The spring clips have remained secure. Rear anchorage & front shackles from an outside examination appear to be in good condition. The flexibility of the springs still remains good. Dipping headlights & controls, to N. Sch. 1854/5. As previously reported, the headlamps rattle. The wear in control rods does not appear to have increased very much during the continuation of the test. The headlamps failed during the test, due to the wire leading to O.S. lamp having become broken where it enters the lamp through the bearing. This is a right angled bend, & there does not appear to be sufficient room at this point for the continual twisting motion of the wire. This appears to be a weakness, & it would be advisable if the design were so altered to give more freedom to the wire. It was necessary to refit a new wire as there is not sufficient room to make a joint. As previously reported, the control rods from operating lever on | ||