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 Stream-Line Filters Limited regarding their new self-heating, self-cleaning MC7 filter for Wraith models.
| Identifier | ExFiles\Box 136\3\ scan0043 | |
| Date | 29th April 1939 | |
| SWDL{Len H. Swindell} See me Rm{William Robotham - Chief Engineer} 1/39 ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY. Telephones : MACAULAY 1011-3 LINES Telegrams : EDGEFILT, CLAPROAD, LONDON. Cables : EDGEFILT, LONDON. Codes used : A.B.C. 6TH EDITION. DIRECTORS: C. S. GARLAND (CHAIRMAN) SIR JOHN PRETYMAN NEWMAN P. H.{Arthur M. Hanbury - Head Complaints} ROGERS H.{Arthur M. Hanbury - Head Complaints} TALBOT TECHNICAL ADVISER: DR. H.{Arthur M. Hanbury - Head Complaints} S. HELE-SHAW, LL.D., F.R.S. STREAM-LINE FILTERS LIMITED. MANUFACTURERS OF STREAM-LINE FILTERS AND SEPARATORS. CONTRACTORS TO H.M. ADMIRALTY, WAR OFFICE, AIR MINISTRY, CROWN AGENTS, CENTRAL ELECTRICITY BOARD, AND LEADING MUNICIPAL AND PUBLIC ELECTRICITY, WATER AND TRANSPORT UNDERTAKINGS, ETC. HELE-SHAW WORKS, INGATE PLACE, LONDON, S.W.8. Our Ref: P.278. S/AB/CB. Your Ref: Messrs. Rolls-Royce Limited, DERBY. 29th April, 1939. For the attention of Mr. Rowbottom. Dear Sirs, A few weeks ago your Mr. Maddox at the School in Hendon was introduced to our new filter, and at that time we learnt that you are now fitting a removable pack type to the Wraith models. Calling again this week to show a production model of our new MC7 to Mr. Maddox, our representative was asked whether we had yet brought this filter to your notice. In view of this, we must explain that we have not done so as we are planning a large introductory publicity campaign and have wished to avoid premature disclosures. We should, however, be pleased to learn the possible extent of your interest in the MC7 filter, which is self-heating and self-cleaning, and requires no renewals. Full details will be forwarded at a very early date. Yours faithfully, For STREAM-LINE FILTERS LIMITED. A.C.V.S.Heale General Manager. ON AIR MINISTRY APPROVED LIST | ||