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).
Design improvements and cost-saving measures for a horizontal damper.
| Identifier | ExFiles\Box 16\4\ Scan281 | |
| Date | 17th April 1931 | |
| To Da{Bernard Day - Chassis Design}/Hdy.{William Hardy} From Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} c. to Sg.{Arthur F. Sidgreaves - MD} Wor.{Arthur Wormald - General Works Manager} c. to Sy. X7520. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}5/KT.17.4.31. X235 X7520. HORIZONTAL DAMPER. With reference to N. sch. 3264. We suggest that it would be very much more economical for the replenishing valve to be located in the cage at the end of the damper remote from the double acting valve. As the damper stands, and end cap is provided together with four studs in order that one replenishing valve may be inspected. A further advantage would be that we would have less possibility of leakage. With regard to the main lever, there is no doubt that to have the shaft knurled and the main lever pressed on, would be very much more economical than the taper serrations which have always been very costly to produce. We have made the pressed on lever experimentally and are satisfied that it is a very sound job. If R.{Sir Henry Royce} could be induced to agree to this, it would of course necessitate the intermediate lever being detachable easily as at present, though possibly parallel serrations could be used with a biting in bolt instead of the present square hole. With this arrangement of course both the replenishing valves could be in the piston without having more than one end of the cylinder detachable. Delco's are giving universal satisfaction from all we hear, so that we shall have difficulty in justifying our new damper if it requires a great many more pieces. For instance, should we not be justified in deleting the main bearing bushes with our lubrication system. One could always fit an oversize shaft just as cheaply as new bearings if and when wear became excessive. f Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||