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, Ltd. confirming an arrangement to shorten the Hobson K-S Telegage instrument.
| Identifier | ExFiles\Box 44\2\ Scan171 | |
| Date | 12th July 1928 | |
| CONTRACTORS TO THE ADMIRALTY, WAR OFFICE, AIR MINISTRY AND TO THE DOMINION & FOREIGN GOVERNMENTS. PLEASE ADDRESS ALL COMMUNICATIONS TO THE FIRM, NOT TO INDIVIDUALS. TELEPHONE: CHISWICK 4231 (4 LINES) TELEGRAMS: "ASSEMBLAGE, LONDON." H.{Arthur M. Hanbury - Head Complaints} M.{Mr Moon / Mr Moore} HOBSON, LTD. 47-55, ACTON VALE, LONDON, W.3. MANUFACTURERS OF Hobson K-S Petrol Telegage AND MOTOR ACCESSORIES. WORKS: LONDON AND WOLVERHAMPTON. OUR REF. TPS/MW For the attention of Mr.Robotham (Exptl. Dept.) Messrs.Rolls-Royce, Ltd., Derby. Dear Sirs, Re Hobson K-S Telegage. Further to our letter of the 6th inst., we are happy to inform you that we have now arrived at an arrangement whereby it will be possible to shorten the over-all length of the Hobson K-S Telegage instrument by 2 1/4" as compared with the models last delivered to you, that is to say, the total over-all length from the top of the outside frame or bezel to the bottom of the back tube will not exceed 4". At the same time, the 2" scale will be retained over the complete calibration of the tank itself, exactly similar to that now shown on the longer instrument. This is made possible by the use of a pressure balance or equalizer line from the top of the glass tube back to the | ||