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).
Minutes from progress meeting No. 15 discussing part modifications and approvals.
| Identifier | ExFiles\Box 18\6\ Scan062 | |
| Date | 26th April 1917 | |
| R.H. 235a (500 T) (S.D). 408. 26-4-17.) Bm. 2/156/13. Minutes of Progress Meeting No: 15 - Contd. (2). 6. Priming Cock on Dash Board. The Test Dept. requested that the reduction in the size of the hole in the Priming Cock from .125 to .100 with a view to reducing the tendency to leak might be standardised. This alteration was agreed as it had been tried and found to be quite satisfactory. B. CONDOR ENGINE. 7. Crankcase Stud. E.15245. The Production Dept. requested that this part might be re-dimensioned and an under-cut added in accordance with our standard practice. This was agreed. 8. Rotor Shaft Sunwheel. E.17109. The Tool Dept. requested that 60° Counter-sink should be added at each end of the bore to facilitate manufacture. This was agreed. 9. Washer. E.17155. The Production Dept. requested that limits might be added to certain dimensions. This was agreed. 10. Elbow. E.17651. The Production Dept. requested that the dimensions for chamfer might be modified to agree with other limiting dimensions, and that .875 diameter of the valve should be increased to .935 to provide definite shoulder when machined. 11. Annulus Casing Bush. E.17252. The Production Dept. requested that the material for this part should be altered from Drawn Phosphor Bronze to CPL. as they considered the difficulty in obtaining the part in drawn material was serious. This was agreed. 12. Starting Handle Stop. E.17274. The Tool Dept. asked if it was necessary that this part should be heat treated as called upon. It was considered that heat treatment was unnecessary as the duty on this part is extremely light, being a stop to prevent the starting handle being pushed (Cont'd) | ||