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).
List of points and suggestions noted during the assembly of the Bentley 50 gearbox.
| Identifier | ExFiles\Box 112\2\ scan0051 | |
| Date | 30th May 1938 | |
| 8.28 FJH{Fred J. Hardy - Chief Dev. Engineer} To BY.{R.W. Bailey - Chief Engineer} from HPS.{Horace Percy Smith - Experimental Factory Mgr} c. Rm.{William Robotham - Chief Engineer} HPS.{Horace Percy Smith - Experimental Factory Mgr}4/VS.{J. Vickers}30.5.38. BENTLEY 50. We give herewith for your consideration a list of points noted during the assembly of the Bentley 50 gearbox; we also attach hereto an assembly schedule. Will you kindly give these items your attention and inform us of your decision in due course. 1. By making an integral casting of the clutch end gearbox casings it would not be necessary to machine the front face of the gearbox and rear face of the clutch casing. 2. A plug or cover plate fitted to the gearbox immediately over the selector jaws will enable the position of the lever to be checked when fitting the change gear mechanism to the chassis. 3. The assembly of the shaft and selector forks would be facilitated if a lead was provided on one end of the shaft GB.3468. 4. The reverse shaft boss on the gearbox casting requires modification since it fouls the second speed cone. 5. The front cover GB.3584 should be cleared away on the outside diameter to give clearance to the washer GB.3765. 6. The list of parts does not specify a stud or setscrew to locate the washer FB.3454. 7. The plug F.73992 is not required and should therefore be deleted. 8. Can the position of the two studs carrying the bracket GB.3502 be so altered as to permit the use of a box spanner when assembling this bracket to the gearbox ? 9. The LOP. specifies one operating fork GB.3471 only; this should, of course, be two off. 10. If all bosses on the lower face of the gearbox and the bosses for the oil filler, plug and adaptor were the same height all machining could be completed with one pass of the cutter; with the present design it is necessary for the fitters to remove by hand any surplus metal around these bosses. Continued | ||