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 Negretti & Zambra concerning an 'Acrometer' Pressure Gauge, returning another gauge, and asking about valves.
| Identifier | ExFiles\Box 40\1\ Scan040 | |
| Date | 20th February 1923 | |
| Y3695 Hs{Lord Ernest Hives - Chair}/Rml/LG. 20th. Feb. 1923. Messrs. Negretti & Zambra, 38, Holborn Viaduct, London, E.C.1. Dear Sirs, We are in receipt of your communication of the 14th. inst. and also of the larger 'Acrometer' Pressure Gauge. We consider the latter will be suitable for what we want, and in consequence are returning the 0 to 350 lbs. gauge under separate cover today. We should like to know the fundamental reason for not using the valve we have at present for hot readings. Also the cost of a disc valve only for high temperature work. Yours faithfully, | ||