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 and fracture diagrams for a Magnalium sample from an Upton Lewis Machine.
| Identifier | ExFiles\Box 37\4\ scan 097 | |
| Date | 4th July 1917 | |
| UPTON LEWIS MACHINE TEST NO 10 MARK M4 DATE 4/7/17 MATERIAL MAGNALIUM STATE SECTION 1 x 1/4 DIST. BETWEEN JAWS 1/4 THROW OF CRANK 3/4 SPEED R.P.M. 106 SPRINGS 4 1/2 LBS PER INCH TOTAL NO OF REVS. OF DIAGRAM SAMPLE MAGNALIUM OBTAINED FROM THE METROPOLITAN FOUNDRY BARNES BRIDGE LONDON S.W. | ||