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).
The 'Argen' patent vacuum heater and an attached letter from the Arc and General Equipment Company Limited.
| Identifier | ExFiles\Box 137\1\ scan0040 | |
| Date | 16th February 1921 | |
| TO HS.{Lord Ernest Hives - Chair} FROM DA.{Bernard Day - Chassis Design} Copy to EFC. X.4300 DA{Bernard Day - Chassis Design}15/AH16.2.1921. X.4300 RE "ARGEN" PATENT VACUUM HEATER. With reference to the attached letter from the Arc and General Equipment Company Limited, as we have got the apparatus no doubt you will be sufficiently interested to try this heater when an opportunity arises, and if you wish to avail yourself of the services of the technical expert mentioned in the letter no doubt you will communicate with them direct. DA.{Bernard Day - Chassis Design} FC FEB 16 1921 RECEIVED. | ||