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).
Exhaust blow on a Bentley car due to a loose rivet and suggesting improved welding practices.
| Identifier | ExFiles\Box 104\3\ scan0187 | |
| Date | 20th October 1938 | |
| To By... from Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux} c. RHC.{R. H. Coverley - Production Engineer} Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux}12/N.20.10.38. Bentley - Exhaust System. We have had Mr.Lappin's car B.50.LS. in with an exhaust blow from the front expansion box. This was caused by a rivet being loose which holds the inner baffle plate, also the lug for holding the expansion box to the engine base. The rivet being loose had in turn caused burning of the metal by the exhaust gases blowing past. When the box was taken down for repairs it was found that the baffle had come adrift. This I am sending up to you as it is a clear indication of insufficient welding. The practice as you suggested of making the holes large enough to make the welders weld, and not spot weld, is needed on this baffle as it is on the clips in the rear silencer. Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux} | ||