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).
Description of the laboratory facilities and testing procedures for moulding powder at Messrs De la Rue.
| Identifier | ExFiles\Box 142\1\ scan0286 | |
| Date | 31th October 1938 guessed | |
| LABORATORIES. Messrs De la{L. A. Archer} Rue have two laboratories - one chemical and one physical, where all experimental work is done. Each drum of moulding powder is subjected to various standard tests such as the cross breaking strength, the impact values and the degree of plasticity at certain temperatures. RHO/D.W.Brown. | ||