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).
Laboratory report on the estimation of thermal expansion of an aluminum car piston up to 200°C.
| Identifier | ExFiles\Box 76\3\ scan0094 | |
| Date | 16th April 1919 | |
| Mr Hives, Exbcll. HSC/EB24819. Laboratory. Re Aluminium Car Piston. Estimation of expansion up to 200 oC. Temperature. Diam across Gudgeon pin. Diam at rt angles to Gudgeon pin. Height at Gudgeon Pin. Height at rt angles to Gudgeon Pin. 16.9 oC. 4.496 - 0 4.495 - 0 4.3982 - 0 4.3980 - 0 50 oC. 4.501 + .005" 4.501 + .006" 4.405 + .0068" 4.4045 + .0065" 100 oC. 4.507 + .006" 4.506 + .005" 4.412 + .007" 4.411 + .0065" 150 oC. 4.512 + .005" 4.511 + .005" 4.417 + .005" 4.416 + .005" 200 oC. 4.517 + .005" 4.517 + .006" 4.422 + .005" 4.421 + .005" + .021" + .022" + .0238" + .023" Piston and micrometer returned herewith. lrclb R.R. 285 A (100 T) (S.F. 575. 16-4-19) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 2354. | ||