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).
Patented Countersunk Riveting Process offered by the De Bergue Company of Manchester.
| Identifier | ExFiles\Box 15\6\ Scan138 | |
| Date | 22th April 1931 | |
| 8728 To RG.{Mr Rowledge} from ROY.{Sir Henry Royce} c. to EY. c. to HS.{Lord Ernest Hives - Chair} c. to LR.{Mr Ellor} ROY{Sir Henry Royce}12/G22.4.31 The De Bergue Company, of Manchester, have patented a Countersunk Riveting Process - details of which you will find on sheet attached.(This is the only copy I have. Perhaps RG{Mr Rowledge} will kindly circulate to the others mentioned). This is applicable to material up to 16 gauge, and samples attached show typical examples of riveting by this process. De Bergue claim that it can be used for riveting in reasonable ductile materials, Copper, Mild Steel, Stainless Steel etc. and they will gladly send over a Representative to rivet an experimental Petrol Tank in our presence, bringing all the necessary tackle, should we be interested. Sample No.1 - is in Duralumin with 5/32" dia. Rivets Sample No.2 - is Stainless, 17% Chromium Iron rivits ROY.{Sir Henry Royce} ENCLOSURES. 2 Samples. Descriptive leaflet and Print | ||