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).
Test results from an Upton Lewis machine for a special piston metal alloy.
| Identifier | ExFiles\Box 37\4\ scan 119 | |
| Date | 12th June 1917 | |
| UPTON LEWIS MACHINE TEST No: 2 MARK: Fe DATE: 12-6-17 MATERIAL: SPECIAL PISTON METAL STATE: SECTION: 1" x 1/8" DIST. BETWEEN JAWS: 1/8" THROW OF CRANK: 3/4" SPEED R.P.M.: 106 SPRINGS: 9 1/2 TOTAL No OF REVS: 32 PER REV OF DIAGRAM AN ALLOY WITH CONSIDERABLY LESS COPPER THAN P, NAMELY CONTAINING 91% OF ALUMINIUM, 8% OF COPPER & LESS THAN 1% OF ZINC. 29 JUN. 1917 DERBY. | ||