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).
Containing an extract from a letter concerning sample radiator tubes, their quality, and strength.
| Identifier | ExFiles\Box 38\2\ Scan187 | |
| Date | 4th May 1923 | |
| V/3456 BY from ROY.{Sir Henry Royce} c. to Hs.{Lord Ernest Hives - Chair} May 4th.1923 ROY{Sir Henry Royce}12/MG30.4.23 Further to ROY{Sir Henry Royce}9/MG30.4.23. Below please find extract from letter received from Metals Reproduction Ltd in this connection. "The remarks about these tubes are as follows:- "We are sending you today under separate cover some samples "of Radiator Tubes made approximately to Messrs. Rolls Royce's "drawing, from material we had available. These samples are "to illustrate the quality of the material, and the strength "of tube of varying thickness only, and must not be taken as "being accurate to dimensions. The tube .005" thick will "easily stand 15 lbs. air pressure, and we should be glad to "hear whether Messrs. Rolls Royce consider them strong enough "in other respects. There would of course be a considerable "saving in weight should they be suitable." ROY.{Sir Henry Royce} | ||