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).
Performance graph for a Bensports petrol pump, plotting head against pump RPM.
| Identifier | ExFiles\Box 27a\2\ Scan184 | |
| Date | 28th March 1933 | |
| BENSPORTS PETROL PUMP SUCTION AND DELIVERY PIPES AS ON CHASSIS HEAD ON PUMP AS ON CHASSIS. NO CARB FITTED. PUMP R.P.M. NO. 4 PUMP ALL HOLES 3/32 DIA: STRONG PRESSURE SPRING 4.2 LBS/SQ IN | ||