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).
New central chassis lubrication scheme, particularly addressing the issue of including the axles.
| Identifier | ExFiles\Box 27\1\ Scan185 | |
| Date | 27th April 1929 | |
| To R.{Sir Henry Royce} from Hs{Lord Ernest Hives - Chair}/Gy. c. to Ss.{S. Smith} Wor.{Arthur Wormald - General Works Manager} c. to E.{Mr Elliott - Chief Engineer} DA.{Bernard Day - Chassis Design} c. to B. +3806 Hs{Lord Ernest Hives - Chair}/Gy1/LG27.4.29. CENTRAL LUBRICATION. Although we believe we now have a scheme for chassis lubrication which is serviceable and efficienct, we think we must anticipate a large number of complaints from customers that the axles are not coupled up to the system supplied from the central pump. It will be very difficult to justify one RR. car i.e. Springfield having a complete one-shot system and another RR. i.e. Derby what is virtually a 3-point. Moreover, Nash, Studebaker, Packard, Moon etc. are all adopting the Bijur system in its complete form, and we have definite information that as much the system operates satisfactorily. From our own experience on 12-EX we should say that leads to the axle are most desirable, and if care is taken, can be made reliable and efficient. We agree that long rambling brass tubes with coils fitted to the springs do not look a mechanically sightly job, but we do not think that the exclusion of the axles from centrepoint lubrication should rest on this point. We believe it may be a better scheme to take the pressure leads from the frame down the shock damper lever and anchorage tube or triangle to the axle. In this manner it would be possible to eliminate, completely, reciprocating movement of the flexible pipe lines i.e. so that only relative rotational movement obtains between flexible pipes from the sprung to the unsprung weights. Apart from this feature we believe such a scheme could be made to look an altogether neater job than pipe lines down the spring. contd :- | ||