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).
Solutions for body and window rattles in vehicles.
| Identifier | ExFiles\Box 74\1\ scan0085 | |
| Date | 14th November 1911 | |
| (4) increase in weight over ordinary bodies would be one or 1 1/2 cwt. or more. Even then 4 point suspension would be doubtful - the points would have to be at 4 corners of platform, not under door pillars, and twist of chassis due to one wheel rising would be transmitted in the worst manner to the body. Separate chassis and body dashes would be necessary. 6 or 8 points of suspension are asked for. A strip of grease-treated felt, 2" thick, would be better than separate points, this would be flexible and would insulate door-pillars etc. from vibrating machinery and prevent some of the "whip" here. Generally, however, it is considered that when body is bolted directly to frame, the strength of the two is combined, and with this idea coachmakers believe a deeper and stiffer frame would overcome all door rattles, provided the doors fit well in the first place and that bodies are sent in for overhaul every 1,500 miles. Regarding window rattles, when windows are a little way open, if they are arranged to be tilted (as they may be by hanging them from one top corner) rattling ceases. Hoopers are now fitting windows arranged so, windows on Midland Railway Dining Cars are so arranged and do not rattle. R.D.Spinney. 14/11/11. R.R. 235A (100H) (W 965 14.10.11) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 4054 | ||