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).
Notes on a valve extension alignment issue and problems with continually breaking plugs.
| Identifier | ExFiles\Box 80\1\ scan0251 | |
| Date | 25th October 1912 | |
| Oct 25/12. Re Valve. Y1067 4.434. Could not the right angle extension for the supply pipe be arranged so that it would be in line with the valve hole. Owing to this having to be set at a certain angle it means facing enough off the face, to screw it round one complete turn and reseating. This more often than not requires a new piece. Y1067. on repairs with above in line it would only be necessary to recess above while in its place. There is plenty of room for the petrol pipe. Oct 15/12. U1055 Plugs 9.435 The above are continually breaking off at the undercut. They will not stand any strain and does not make a perfect joint. These could be left solid or shortened 1/16" or 1/8" to come on the Boss face of petrol Chamber. The stem of the float only enters 1/32" into the recessed hole of U1055. See further improvements April. 9/13 | ||