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).
The examination of a fractured down pipe and primary expansion chamber from a vehicle.
| Identifier | ExFiles\Box 101\2\ scan0126 | |
| Date | 22th October 1936 | |
| Rm{William Robotham - Chief Engineer} 500cl HOTEL DE FRANCE, CHATEAUROUX, Indre. France. GWH{George W. Hancock - Head Chateauroux}/HFH{Hoppy F. Hamilton}/1/JAB. 22nd October 1936. To. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} 22. G.{Mr Griffiths - Chief Accountant / Mr Gnapp} V.{VIENNA} We have examined the down pipe and primary expansion chamber which broke just prior to Waller's departure. The fracture actually occurred on the outside of the welding at the point where the down pipe enters the first expansion chamber. It appears that this particular point is under continual stress, due to the length of pipe and silencer it has to support, there being no suspension between this and the rear of the main silencer. The metal shows layers of scale on the inside and has considerably reduced the thickness and strength of the material, allowing it to give way at that point as soon as the pipes become red hot. The aluminising has remained intact and the outside surfaces are clean and free from rust and scale. There is no doubt that an additional suspension on the centre cross tube would considerably assist the durability of the welded joint in question. ---------- GWH{George W. Hancock - Head Chateauroux}/HFH.{Hoppy F. Hamilton} HF{H. W. Frost - Coachwork Inspector} Hamilton | ||