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).
Particulars and test results for a Syphon tube supplied from the U.S.A., noting a substituted part.
| Identifier | ExFiles\Box 78\1\ scan0251 | |
| Date | 25th August 1920 | |
| X3652 To HY.{Tom Haldenby - Plant Engineer} from RHC.{R. H. Coverley - Production Engineer} c. to Hs.{Lord Ernest Hives - Chair} RHC{R. H. Coverley - Production Engineer}4/LG25.8.20. X3652 RE SYLPHON TUBES. We give below particulars of Sylphon tube which has been supplied from U.S.A. Details generally are very good. Screw E.18647 has been left out and a piece of cork substituted and covered with solder. We consider that screw should be fitted as called for on drawing. Overall length of tube. | remarks. Varying conditions. | Normal 1.500 | Drawing specifies 1.575 At 75°C 1.700 | " " 1.750 At 80°C 1.925 Tube exposed 2.175 Boiling point of water 2.650 Liquid boils at 75°C as specified on drawing. RHC.{R. H. Coverley - Production Engineer} | ||