Blueprint showing a cross-section of a wheel hub assembly with modification notes.
| Identifier | ExFiles\Box 13\5\ Spare05-page041 | |
| Date | 13th February 1929 | |
| N. SCH. 2760 MODIFIED MINIMUM CLEARANCE HERE .010" (DIAM.) MINIMUM CLEARANCE HERE .020 ENGRAVE 'LOCK' AND 'RELEASE' POSITIONS CLEARLY HERE HUB MOVEMENT LIMITED TO 90° BY PEG AND SLOT HERE HUB INCREASES IN DIAM AT END WHEN WHEEL IS BOLTED UP TIGHT LOCKING RING EASILY FORCED OUT OF ITS GROOVE BY HAND NUT MINIMUM CLEARANCE HERE .010" (DIAM.) BRACKET SHOULD BE ALTERED THUS 13 FEB 1929 | ||
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).