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 failing Petrolift pump and its subsequent redesign.
| Identifier | ExFiles\Box 31\4\ Scan154 | |
| Date | 26th April 1932 | |
| X148 STATION:- ADDERLEY PARK, L.M.&S.Rly S.U. CARBURETTER FLEXIBLE SILENT THE S.U. COMPANY. PROPRIETORS: MORRIS INDUSTRIES LTD TELEPHONE:- BIRMINGHAM EAST 633. East Works, Bordesley Green Road, Adderley Park—Birmingham. THE SOCIETY OF MOTOR MANUFACTURERS & TRADERS LTD TELEGRAMS:- FLEXCARBUR, BIRMINGHAM. Your Ref. Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer}/14/MA Our Ref. TG/DR April 26/32. W.A.Robotham Esq., Messrs. Rolls-Royce Ltd., DERBY. Dear Mr. Robotham, I was glad to have a line from you again, but I am sorry to hear the Petrolift has failed on Mr. Lappin's car. The trouble is probably sticking up of the top plunger, as this is the only fault we have experienced with the pump. What actually happens is that as the top plunger has the pull of the magnets which holds it against the side of the pump tube, should there be a bit of foreign matter there, it puts up sufficient friction to hold the plunger up. It is not an actual jam. It may interest you to know that we have now entirely redesigned the pump eliminating the top plunger completely, and therefore disposing of the one trouble we have been having. Kind regards. Yours sincerely, TGSkinner 22 30 40 | ||