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 manufacturing arrangements and testing feedback for a Grav-vac apparatus.
| Identifier | ExFiles\Box 76\3\ scan0167 | |
| Date | 27th June 1924 | |
| PM from ROY.{Sir Henry Royce} c. to Hs.{Lord Ernest Hives - Chair} X919 ROY{Sir Henry Royce}13/MG27.6.24. The Grav-vac Syndicate advise they have now concluded arrangements for the manufacture of their Grav-vac apparatus by a Midland firm of high repute, and are making special arrangements for the supply of a special high-finished Tank which they hope to submit for our approval shortly - the preliminary apparatus submitted having been made when manufacturing arrangements were not all they might be. If our tests to date have shewn any weakness in their original apparatus, will you kindly advise, so that modifications can be incorporated in the further sample they are now completing. ROY.{Sir Henry Royce} | ||