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).
Ordering of radiator tubes with specific expanded end dimensions.
| Identifier | ExFiles\Box 78\1\ scan0316 | |
| Date | 1st March 1921 | |
| R.R. 235B (100 F) (S.H. 798. 10-12-20) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 3948 X.1066 433/ Wd.{Mr Wood/Mr Whitehead} from BY.{R.W. Bailey - Chief Engineer} c. to Hs.{Lord Ernest Hives - Chair} c. to Da.{Bernard Day - Chassis Design} c. to Ms. BY20/P1.3.21. X.3727 X.1066 X 433/ RADIATORS. Referring to Wd{Mr Wood/Mr Whitehead}8/NJ28.2.21, we have ordered sufficient tubes 8 mm diameter with the ends expanded to 9½ mm to produce three radiators in our own works, and have done this after consulting Hs{Lord Ernest Hives - Chair}, and pointing out to him that it was considered there would be a distinct advantage in using tubes 8 mm in the body and 9½ mm. at the.end, for our original proposition of 8 mm. body and 9 mm. expanded ends. Ms. will no doubt be able to tell us how soon the tubes in question will be delivered. | ||