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 The S.U. Company regarding a request for a pump with a larger output.
| Identifier | ExFiles\Box 149\1\ scan0016 | |
| Date | 23th March 1934 | |
| STATION: ADDERLEY PARK, L.M.&S RLY. S.U: CARBURETTER FLEXIBLE SILENT THE S.U. COMPANY. PROPRIETORS: MORRIS INDUSTRIES LTD TELEPHONES: EAST 1662 AND EAST 1663. General Manager: T. C. SKINNER. East Works, Bordesley Green Road, Adderley Park Birmingham, 8. TELEGRAMS: FLEXCARBUR, BIRMINGHAM Your Ref. Our Ref. RLK/HMH 23rd March, 1934. Messrs.Rolls Royce Ltd., D E R B Y. Dear Sirs, For the attention of Mr. Robotham. Our Mr.Davey has informed us that you would require a pump with a larger output. We have not written you before as we have been carrying out a few experiments with this in view, and before going any further we should like to know approximately what output you require. We are now supplying a duplex pump to some of the commercial vehicle people and we enclose a blue print of the body of this herewith. With the exception of the mounting the chief differences are as follows. The inlet union is a 3/8" union and the petrol pours directly into the body and not via an annulus, as on your pumps. The foot valves are not spring loaded, but the lift of the valves is restricted by using a 15-thou thick washer under the valve cages, the bottoms of the cages being chamfered to give a knife edge, to prevent the valves from sticking to them. The inlet is another 3/8" gas union and comes out at the side. These pumps give an average of four to five gallons an hour more than your pumps on open delivery. We think that this is accounted for mainly by improvements on the ... ... ...CONT'd.{John DeLooze - Company Secretary} | ||