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).
Modification to a hinged filler cap to prevent petrol spilling.
| Identifier | ExFiles\Box 106\2\ scan0094 | |
| Date | 2nd June 1932 guessed | |
| HINGED FILLER CAP MODIFICATION TO CURE PETROL SPILLING PII # 20/25 HP TWO .125" DIAM. AIR HOLES AS ON SCREW CAP TYPE OF FILLER LEATHER WASHER TRAPPED IN CENTRE TO MAKE PETROL TIGHT SEAL NO HOLE IN LEATHER WASHER TWO HOLES ONLY AND OPPOSITE TO AIR VENT PIPE A STUD HERE WOULD BE PREFERABLE TO THE PRESENT SCREW JHH | ||