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).
Blueprint diagram for a Bensport oil pump with helical gears.
| Identifier | ExFiles\Box 149\2\ scan0081 | |
| Date | 4th September 1933 | |
| TOP LEFT: (STD PUMP .002 - .005 O/S) TOTAL END CLRCE BETWEEN GEAR AND CASING .003 +1 GEARS INCREASED TO 1.000 TOP RIGHT: TOTAL END CLRCE BETWEEN GEAR AND WASHER .002 PART NUMBERS: Ex11430 Ex11449 Ex11447 Ex11448 Ex11451 Ex11452 Ex11453 STUD BOTTOM: ALL DETAILS TO COMPLETE TO LOP E53658 BENSPORT OIL PUMP WITH HELICAL GEARS Ex11454 TABLE: NO OF TEETH: 12, 12 D.P.: PITCH DIA.: 1.1666 HELIX ANGLE: 31° DRIVER: R.H. DRIVEN: L.H. STAMP: ROLLS-ROYCE, LTD PRINT ROOM 4 SEP 1933 DERBY | ||