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).
Technical drawing of an exhaust valve.
| Identifier | ExFiles\Box 158\5\ scan0015 | |
| Date | 7th November 1935 | |
| THE ARTICLE SHOWN HEREUNDER IS THE SUBJECT OF CONTRACT : SUPPLIERS SHOULD THEREFORE REFER ALL ENQUIRIES FOR SAME FROM OTHER SOURCES TO A.E.C. SOUTHALL DRAWING NOT TO BE SCALED. ALL GOODS MUST BEAR OUR PART No., OUR DATE LETTER AND MAKER'S TRADE MARK. THE ASSOCIATED EQUIPMENT Co. LTD. SOUTHALL MIDDLESEX. ALTERATIONS Stem Dia from 13.94 to 13.96 W.B 11.8.36 & other dim's accordingly T.G Head thickness from 2 to 1.5 T.G 15/4/36 Overall from 142 to 141 T.G 15/4/36 Normalise after upsetting head Entire face of finished Head Complete after firing head Seating finish to internal tube G/W Enlarged view of finish Drill & Ream for Cotter Pin. Taper 1 in 18 on Dia. Slave Rad Dia 2.4 Deep Tip to be Pin ground or lapped as shown & ground off face to agree with Hole System ST.{Capt. P. R. Strong} 0512 A.P. A505/1 DRAWN TRACED CHECK'D PASSED DATE: 7/11/35 VALVE / EXHAUST MACHINED ALL OVER f MACHINED G GROUND NEWHALL STANDARD LIMITS ARE USED ONLY WHERE LETTER SYMBOL GIVEN B FOR HOLES P PUSH FIT D DRIVING FIT F FORCE FIT X RUNNING FIT Y MACHINED DIMENSIONS WITHOUT LIMITS TO BE WITHIN ±0.2% OR 0.008 OF GIVEN SIZE MATERIAL LIST No. MODEL No.OFF PART N° V81496 | ||