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).
Required specifications for Cambridge thermometers for instrument boards.
| Identifier | ExFiles\Box 175\4\ img051 | |
| Date | 21th October 1926 | |
| Order Office. c. BY/HED. c. Hs.{Lord Ernest Hives - Chair} *3987 X3875 BYL/H.{Arthur M. Hanbury - Head Complaints} 21.10.26 INSTRUMENT BOARD. - CAMBRIDGE THERMOMETER. It is most important that we should not order any more thermometers unless they are fitted with an electrical contact to enable a red lamp to be fitted later, even if the lamps are not available at the moment. Mr. Booth has got a drawing showing the type of thermometer fitted with an electrical contact, and we should arrange to have all future deliveries in accordance with this scheme. If C.T. material has not been delivered and it is possible to alter it without making scrap to any large extent, it is desirable that we should arrange to have C.T. thermometers made to this pattern. This would also apply to "K" Series of the 20 HP. BY.{R.W. Bailey - Chief Engineer} | ||