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).
The modulus of elasticity of road springs, with tabulated test data for two different blades.
| Identifier | ExFiles\Box 79\3\ scan0174 | |
| Date | 18th April 1914 | |
| Wor{Arthur Wormald - General Works Manager}/Mcr1/L18414. Re Modulus of elasticity of Road Springs. Da.{Bernard Day - Chassis Design} 18-4-14. Na.{Mr Nadin}c. The following is Mr Purdon's report in response to your instruction sheet 12106 of 7/4/14. [Stamp: SECOND COPY OXLEY] * 1st Blade Load. | Deflection at centre. | Length between centres. 100 lbs | 1.281 | 42.187 200 " | 2.594 | 41.937 300 " | 3.656 | 41.562 2nd Blade. Load. | Deflection at centre | Length between centres. 100 lbs | 1.281 | 42" 200 " | 2.609 | 41.781 300 " | 3.671 | 41.375 [Diagram 1, dimensions:] .290, < 1.985 > [Diagram 2, dimensions:] .288, < 1.985 > [Left margin, vertical:] 026X [Bottom right, upside down:] R.R. 235 a (150 H) (V.V. 58S. 23.2.14) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 0363. | ||