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).
Ongoing trouble with knocking shock dampers and proposed solutions.
| Identifier | ExFiles\Box 105\3\ scan0079 | |
| Date | 18th November 1929 | |
| To. DA.{Bernard Day - Chassis Design} c. E.{Mr Elliott - Chief Engineer} c. R.{Sir Henry Royce} C. Hs.{Lord Ernest Hives - Chair} c. Wor.{Arthur Wormald - General Works Manager} X5520 BY21/N18.11.29. X7520 Re: Knocking Shock Dampers. We have still no scheme to deal with the above trouble, there has been a provisional patent taken out for 'R's scheme of operation by a strong spring link to overcome the high oil pressures at points of change. In the meantime we are having continual trouble with the dampers already delivered and the only way we know we can overcome this is by either changing the pins and links at short intervals or putting a small hole through the valve, and I have been driven to the latter to avoid annoying customers. BY.{R.W. Bailey - Chief Engineer} | ||