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. regarding drawings for unions, air line piping, and tank units for 20 HP and 40/50 HP cars.
| Identifier | ExFiles\Box 44\2\ Scan166 | |
| Date | 6th July 1928 | |
| X4038 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.M. HOBSON, LTD. MANUFACTURERS OF Hobson KS Petrol Telegage AND MOTOR ACCESSORIES. WORKS: LONDON AND WOLVERHAMPTON. 47-55, ACTON VALE, LONDON, W.3. 6th. July, 1928. OUR REF. TPS/MAB. YOUR REF. For the attention of MR. Robotham. Messrs. Rolls-Royce, Ltd., Derby. Dear Sirs, As promised we enclose herewith detailed drawings of the style of union which we use, also drawing of the air line piping. We have found this arrangement of narrow seating in conjunction with the taper that we use on the cone, could be highly satisfactory from an air tightness point of view, even if the installation is not done by skilled people. We are preparing a tank unit for you as requested, for the 20 h.p. car, to the detailed dimensions shown on your drawing F.55743. We do not think, however, that we have the correct particulars by us for the 40/50 h.p. tank unit, as that shown on | ||