Rolls-Royce Archives
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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).
Graph comparing the delivery rates of a Bensport petrol pump at various RPMs using different diameter pipes.

Identifier  ExFiles\Box 27a\2\  Scan152
Date  2nd May 1933
  
GRAPH I
BENSPORT PETROL PUMP - LEC 3417
TAP FILTER, TANK & PUMP AT SAME RELATIVE HEIGHTS, AND CONNECTED BY SAME LENGTHS AND DIA (1/4") PIPES AS ON CHASSIS.
DELIVERY PIPES 1/4", 5/16" & 3/8" DIA, EACH THE SAME IN LENGTH, AND GIVING THE SAME HEAD (13") AS ON CHASSIS.
CAM STROKE .203"
DELIVERY PTS/HR
PUMP R.P.M.
3/8 DIA DELIVERY PIPE
5/16 DIA DELIVERY PIPE
1/4 DIA DELIVERY PIPE
AB
  
  


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