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).
Hand priming test results for a Bensport petrol pump.
| Identifier | ExFiles\Box 27a\2\ Scan175 | |
| Date | 29th May 1933 guessed | |
| BENSPORT PETROL PUMP. HAND PRIMING TESTS - TO E'S REQUEST. Using the full Bensport suction system, the total number of strokes required to pump from dry using .203" (normal) and .260" (max. possible) equivalent cam strokes were as follows :- .203" stroke. 33 pumps/16 secs. 32 pumps/15 secs. 30 pumps/29 secs. .260" stroke. 20 pumps/12 secs. 21 pumps/13 secs. 23 pumps/22 secs. NB. One "pump" equals one complete rev. of cam. Hs{Lord Ernest Hives - Chair}/W.Bell. | ||