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).
Dashboard isolation scheme for the 20/25, Bentley, and Phantom III models.
| Identifier | ExFiles\Box 139\2\ scan0375 | |
| Date | 6th November 1935 | |
| x1166 NYMAN used BY.{R.W. Bailey - Chief Engineer} c. Hs.{Lord Ernest Hives - Chair} Mx.{John H Maddocks - Chief Proving Officer} Is. JLE.{J. Lee Evans - Chassis Test Manager} EV.{Ivan Evernden - coachwork} Dy{F R Danby}/RD. re 20/25 , Bentley and Phantom 3 Dashboard Isolation Scheme. Referring to the points you have raised in connection with the testing of chassis fitted with the dashboard isolation schemes, we agree it would be better to fix the outline design of the plates on the back of the dash so that they should definitely cut short of the scuttle. This would enable Mx.{John H Maddocks - Chief Proving Officer} to fit his test bodies, and the coachbuilders could afterwards bridge the gap between their scuttle and the edge of our cover plates and felt. We do not, however, think that this bridging can be done with pieces of aluminium sheet metal and felt, such as we have used on the 20/25 and Bentley because on these cars the scuttle armature is still not rigidly bolted to the dash. We, therefore, suggest that the coachbuilder shall provide carpeting to bridge the gap, reinforced behind with felt so that the relative movement between the scuttle and dash will not then give rise to any noises. With regard to the edges of our aluminium plate, the side plates at the present moment are provided with wire beaded edges, as shown on LeC.4464, and these could be carried over the top to finish off the edge of the plate and bent over forwards to assist in retaining the felt. With regard to securing temporary instrument board brackets, we agree to the scheme proposed, but we should like to see hat shaped sheet metal washers used for spigoting the dashboard end of the final fixing screw and holding this concentric in the bolt hole, also we should like to see the edge of the aluminium plate around the circular 1" hole flanged over to assist in retaining the felt. | ||