Diagram illustrating a clip mechanism with a welded lug to prevent it from slipping off a pipe.
| Identifier | ExFiles\Box 131\4\ scan0087 | |
| Date | 11th March 1937 guessed | |
| Lug welded on to prevent slipping off. Clip refered to. | ||
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).