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).
Letter to the Cambridge Instrument Co. regarding a special thermometer and requirements for thermocouples.
| Identifier | ExFiles\Box 175\4\ img030 | |
| Date | 22th May 1926 | |
| 43875 X3987= Expl: Dept: 22nd. May 1926. Hs{Lord Ernest Hives - Chair}/Rnl/LG. The Cambridge Instrument Co., Cambridge. Dear Sirs, For the attention of C. Mason Esq., With reference to our visit to your Works a short time ago, we should be obliged if you will let us know when we may expect to receive the special thermometer which we discussed, fitted with an electrical contact. With regard to the thermo couples for reading small differences in temperature which we mentioned to you. Our particular requirements at the moment are, for a thermo couple with a range of 200°C to read over the full scale of a Weston Millivolt-meter (total scale .075 volts). We require these thermo couples to get in the minimum possible space (they are principally for measuring bearing temperatures where the housing is often quite thin). We should be obliged if you could let us know what you can do in this matter. Yours faithfully, | ||