Series of three graphs showing the results of rear road spring tests with cadmium plated spring pads and clips fitted.
| Identifier | WestWitteringFiles\S\September1928-October1928\ Scan055 | |
| Date | 31th August 1928 | |
| REAR ROAD SPRING TESTS - F. {Mr Friese} 78536 CADMIUM PLATED SPRING PAD & CLIPS FITTED. 31-8-28. C/ Illegible handwriting on left margin. Graph 1 (Top): HYSTERISIS TEST Nº 3 DEFLECTION - INS: 8, 10, 12 APPLIED LOAD - LB-: 1200, 1400, 1600, 1800, 2000 Right Axis: 24, 26, 28 Graph 2 (Middle): TEST Nº 2 DEFLECTION - INS: 8, 10, 12 APPLIED LOAD - LB-: 1200, 1400, 1600, 1800, 2000 Right Axis: 22, 26, 30, 32 Graph 3 (Bottom): TEST Nº 1 DEFLECTION - INS - SPRING - TIP: 8, 10, 12 APPLIED LOAD - LB - SPRING TIP: 1200, 1400, 1600, 1800, 2000 Right Axis: 32, 34, 36 | ||
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).