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).
Alteration sheet detailing the standardization of drilled holes in the Rocker Lever for the 250-HP Aero Engine.
| Identifier | ExFiles\Box 33\2\ Scan020 | |
| Date | 12th June 1916 | |
| R.R. 288C (S H) (S.C. 127. 3-1-16) Bm. 2/20/7. ALTERATIONS TO 250-H.P. R.R. AERO ENGINE PARTS. Description of Parts. The Rocker Lever which has now become standard, that is, with the plain lock nut and new split boss, was left solid in the lever until the experiments were completed shewing that the drilled holes constituted no weakness. The present standardisation sheet is to have the holes drilled in the levers in question, as sketch herewith. AA{D. Abbot-Anderson} X.1913. Drawing No. E.9813. Part List. E.7469. Experimental Test Report. EHL/DB{Donald Bastow - Suspensions}30516 - "We have run a set of these for 80 hours on an experimental engine. The adjusting screws were locked by a nut on top. There were no split pins. We have not had a case of one working loose. We recommend that these should be made standard". Signature of Expl. Dept. that above is correct. Weight of Old Part. .375 lb. Cost of Old Part. £ ----- Cost of Parts in Works and Stores which will be scrapped if commenced on:- £ ----- Weight of New Part. .343 lb. Cost of New Part. £ ----- Storekeeper advised re above. Storekeeper's Signature. ----- Difference per Engine. .032 lb lighter. Difference per Engine. £ ----- Signature of Mr. DELOOZE that above is correct. SIGNATURES | DATE | REMARKS Mr. JOHNSON. | 7.6.16. | C.Johnson. Mr. ROYCE. | 9.6.16. | I think that these should be put in hand at once. F.H.R. Mr. WORMALD. | 10.6.16. | Agreed. Wor.{Arthur Wormald - General Works Manager} Mr. NADIN. | 8. 6.16. | I agree. Na.{Mr Nadin} Mr. PLATFORD. | 8. 6.16. | Agreed. EP.{G. Eric Platford - Chief Quality Engineer} Mr. BAILEY. | 8. 6.16. | I agree R.W.H.B. NOTE.--We have arranged with the Admiralty that if we find it necessary to make any alterations to these Engines we will notify the Admiralty what alterations we propose to make, and what will be the cost of them and of the consequent scrap, if any. So that we may ascertain whether the Admiralty will pay or Rolls-Royce will have to pay. | ||