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).
Illustrating two methods of welding to prevent cracking at stressed welds.
| Identifier | ExFiles\Box 174\2\ img106 | |
| Date | 11th April 1937 guessed | |
| -2- To prevent cracking at stressed welds, it is essential to weld one side, clean the other and then weld the other thus :- CHISEL CLEAN ① ② or thus :- CLEAN ① ② ③ unit. This might be considered on the steel sleeve | ||