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).
Detailed report from Negretti & Zambra on a mercury-filled water temperature thermometer, noting its cost and accuracy.
| Identifier | ExFiles\Box 40\1\ Scan068 | |
| Date | 7th January 1924 | |
| Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer} from ROY.{Sir Henry Royce} X3695 ROY{Sir Henry Royce}23/AUG7.1.24 Attached is a detailed report given by Messrs. Negretti & Zambra on the Water temperature Thermometer, Mercury filled, they submitted, at a cost of some £7. 0. 0 - which is a little more than double what we pay to-day for the Cambridge Ether filled instrument - which may be of interest. You will note the extreme accuracy of the readings they obtain from this instrument. Negretti & Zambra are making another instrument, Ether filled, for us, but it will be some little time before this comes to hand. ROY.{Sir Henry Royce} ENCLOSURE. Report. The instrument is still in my room. [Red Stamp] ENCLOSURE Nº 252 "JUSTSO" | ||