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 from H.M. Hobson discussing the limitations and proposed modifications for a K-S Electrical Telegage fuel gauge.
| Identifier | ExFiles\Box 149\6\ scan0047 | |
| Date | 24th September 1937 | |
| CONTRACTORS TO THE ADMIRALTY, WAR OFFICE, AIR MINISTRY AND TO THE DOMINION & FOREIGN GOVERNMENTS. PLEASE ADDRESS ALL COMMUNICATIONS TO THE FIRM, NOT TO INDIVIDUALS. Handwritten note: Please File [Company Logo: H.M. HOBSON (AIRCRAFT AND MOTOR) COMPONENTS, LTD.] (H.M. HOBSON LTD. (Founded 1903) INCORPORATING ACCURACY WORKS LTD. (Founded 1911) FLOATS LTD. (Founded 1920)) REGISTERED OFFICES & WORKS, 47-55, THE VALE, ACTON, LONDON, W.3. TELEGRAMS, ASSEMBLAGE, PHONE, LONDON. TELEPHONE, SHEPHERDS BUSH 3321 (4 LINES) WORKS, ACCURACY WORKS, WOLVERHAMPTON. TELEGRAMS, ACCURACY, WOLVERHAMPTON. TELEPHONE, WOLVERHAMPTON 22371. 3 LINES DIRECTORS. T. P. SEARIGHT, CHAIRMAN. W. M.{Mr Moon / Mr Moore} ILIFF. H.{Arthur M. Hanbury - Head Complaints} BURROUGHES. S. W. HUGHES. J.{Mr Johnson W.M.} MONTGOMERIE. E.{Mr Elliott - Chief Engineer} DODSON. Manufacturers of CLAUDEL-HOBSON CARBURETTERS OBSON K-S TELEGAGES HOBSON-PERFECT WINDOW REGULATORS HOBSON SPARKING PLUGS AND THE HOBSON SYSTEM OF AIRCRAFT ENGINE MASTER CONTROLS [Logos: SOCIETY OF MOTOR MANUFACTURERS & TRADERS LTD., THE SOCIETY OF BRITISH AIRCRAFT CONSTRUCTORS LTD., BRITISH CARRIAGE & AUTOMOBILE MANUFACTURERS INCORPORATED] Handwritten number: 1263 PLEASE REPLY TO → 47-55, THE VALE, ACTON, LONDON, W.3. ENCLO. 1. OUR REF. SWH/MW YOUR REF. Rm{William Robotham - Chief Engineer}/JBD.{John B. Dixon - Fuel Systems}14/MH.{M. Huckerby} 24th September 1937. Messrs. Rolls-Royce, Ltd., Derby. Handwritten note: DIXON Dear Sirs, With further reference to your letter of the 2nd instant, regarding the Hobson K-S Electrical Telegage as fitted to your 33 gallon tank, we regret that the design of the instrument permits only a 45° scale, and it is, therefore, limited in length by the smallness of the instrument. If it were possible to use a larger instrument, or at least a dial permitting more graduations, the 45° could be extended to give a length of scale of approximately 2", which would permit more markings than on the smaller instrument. The enclosed sketch will illustrate our suggestion with regard to the scale. We are working on the adaptation of a warning light at say three gallons, and see no reason to suppose that this could not be added to the tank unit of our instrument. Our preliminary trials lead us to think that this is quite possible, and we should be very happy if you would let us have a tank suitable for a Bentley or 25/30 H.P. model, to calibrate and | ||