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 modifications and amendments to various engineering parts with reasons for the changes.
| Identifier | ExFiles\Box 18\6\ Scan046 | |
| Date | 10th December 1919 guessed | |
| -3- F.{Mr Friese} 945 - Control Plate Stud.- (Sec.7050).- Material altered from H.D.B. to Drawn G.M. Bar. REASON.- Owing to difficulty in rivetting H.D.B. F.3503 - End Bracket for Front Cross Member.(Sec:7000).- Dia. 2.600 altered to 2.800. Also design altered to show step. REASON.- T. O.{Mr Oldham} request. F.7642/3 - Ferrule for Glover.-(Sec: 7360). Complete radius added on the end of above Part instead of chamfer on outside and countersink inside, as it is a more satisfactory job for machining. REASON.- T. O.{Mr Oldham} request. F.2407 & F.2440/1 - Tie Rods. (Sec:7000).- The size of hole and limit for same should be in each case .562. +2 Dia. of Bore of reduced portion should be .562. +30 The overall width of the eye should be in each case 1.000. +25 REASON.- Mr. Bailey's instructions. F.7458 - Union Body. (Sec:7190).- Turning size on above Part altered from .656 to .648 -4 -Cont'd- | ||