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).
Instruction sheet regarding the machining tests for samples of insulation materials.
| Identifier | ExFiles\Box 24\2\ Scan140 | |
| Date | 5th May 1921 | |
| RR 300 (120B) (SF 349 24-1-19) MP 200552 X.1109 88315 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: EFC Order No. AA{D. Abbot-Anderson} 38 Customer's No. 1 Re. X.1109 Samples of Insulation for Machining Tests. X.3513. A selection of Insulating materials for machining tests is now ready. They should be tested as far as possible for suitability for drilling, turning, (with fine and moderately deep cuts) tapping and polishing. The thin piece of Continental Bakelite might be tried for stamping like sheet metal, as mentioned in Oy 24-F25/9/19. X3513. Signed: F.{Mr Friese} J.{Mr Johnson W.M.} Allen. This Sheet must be filed on completion of the work. | ||