Blueprint detailing modifications to a Zenith petrol filter, showing slot dimensions and a dismantled view.
| Identifier | ExFiles\Box 44\1\ Scan116 | |
| Date | 1st March 1927 | |
| 3 SLOTS IN TOP BAFFLE .437 LONG X .062 WIDE & EQUALLY SPACED. 3 SLOTS EQUALLY SPACED. .375 LONG X .062 WIDE. PLAN VIEW OF FILTER UNIT SHOWING SLOTS IN DEFLECTOR PLATE. SHOWING HOW EASILY THE ZENITH FILTER MAY BE DISMANTLED FOR CLEANING PURPOSES. MODIFICATIONS TO ZENITH PETROL FILTER. ROLLS-ROYCE LIMITED PRINT ROOM. 1 MAR 1927 DERBY. | ||
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).