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).
Sales letter from The Blackman Petrol Filter Co Ltd promoting their latest filter with solderless unions.
| Identifier | ExFiles\Box 44\1\ Scan100 | |
| Date | 1st February 1927 | |
| Handwritten: J H action. to E.F. Wait for details. Recd ackd 2/2. STAMP: Received 2 FEB 1927 The Blackman Petrol Filter Co Ltd TELEPHONE: GERRARD 1736 REGISTERED OFFICES: 10 GRAPE STREET 210B SHAFTESBURY AVENUE LONDON W.C.2. CABLES: 'BLACKFILTA, LONDON' TELEGRAMS: 'BLACKFILTA-WESTCENT-LONDON' A.{Mr Adams} BLACKMAN (MAN'DR) C.K. HARDING YOUR REF________ OUR REF GHS/IR. DATE 1st Feb., 1927. The Managing Director, Messrs. Rolls Royce Ltd., Nightingale Road, Derby. Dear Sir, PRIVATE AND CONFIDENTIAL. Since last writing you we have the pleasure to advise that our latest type of filter with solderless unions has met with such success that we have recently had orders for standardizing this on several leading makes of cars. We are taking the liberty of sending you to-day, under separate cover, one of our latest pattern (free of charge) with small punch for expanding pipe, which makes a perfect joint simply and quickly. The advantages of perfect filtration are such that it is obvious it gives a sweeter running to the engine, increases its climbing power, entirely eliminates all carburettor troubles, choked jets, etc., and dispenses with any other gauze fitting in the pipe or carburettor, besides reducing the petrol consumption, and we have proved on our own car that in 23,000 miles of running there was less carbon in the engine than in 5,000 miles on the same car before we fitted our filter. All these are valuable assets and add to the reputation of any car - Why not yours? Owing to the largely increased manufacture we are in a position to give manufacturers the benefit of reduced costs and we can make revised quotations for the car size at the low figure of 3/11d for lots of 500. Type for small cars (up to 10 H.P.) 3/5d for lots of 500. ILLUSTRATION - ACTUAL SIZE P.T.O. ALL COMMUNICATIONS TO BE ADDRESSED TO THE FIRM | ||