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).
Upton Lewis machine test results and fracture diagrams for Magnalium metal.
| Identifier | ExFiles\Box 37\4\ scan 091 | |
| Date | 12th June 1917 | |
| UPTON LEWIS MACHINE TEST NO: a MARK: M1 DATE: 12-6-17 MATERIAL: MAGNALIUM STATE: SECTION: 1" x 1/8" DIST BETWEEN JAWS: 1/8" THROW OF CRANK: 3/4" SPEED R.P.M.: 106 SPRINGS: a 1/2 TOTAL NO OF REVS PER INCH OF DIAGRAM: ROLLS-ROYCE LIMITED 29 JUN.... By MAGNALIUM METAL | ||