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 for a Bentley Hub Extractor tool.
| Identifier | ExFiles\Box 88\5\ scan0021 | |
| Date | 29th October 1935 guessed | |
| BENTLEY HUB EXTRACTOR 1 OFF. N/S OR M/S. .700" R.H. THREAD NURLED 4.125" DIA. .050"R .050"RAD R.H & L.H. THREADS TO SUIT BENTLEY HUBS. N.S & O.S. 3.750" DIA. BORE & TAP 5/8" 11 1.500" DIA. 1.200" 3.500" DIA. UNDERCUT .100"R .750" L.H THREAD 4.000" .625" .625" SQUARE BALL FITTED 3/8" OR .300" DIA. 11 T.P.I. R.H. NOT TO SCALE. H.{Arthur M. Hanbury - Head Complaints} 2161 | ||