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).
Technical notes and winding specifications for Magneto & Speedometer Armatures.
| Identifier | ExFiles\Box 68\4\ scan0171 | |
| Date | 23th December 1916 guessed | |
| Handwritten Text: X. 1640 Magneto & speedometer Armatures AA{D. Abbot-Anderson} (1). Progressive lap. Pitches Forward 11 coil 5 slots Backward 9 com 4 slots Step 1 to 6 Same as Progressive wave Pitch 11 5 slots coil 6 slots com Table Columns: Up: 1, 3, 5, 7, 9, 11, 13, 15, 17, 19 Down: 12, 14, 16, 18, 20, 2, 4, 6, 8, 10 Signatures: MR. JOHNSON MR. ROYCE MR. WORMWALD MR. VIVIAN MR. PLATFORD MR. BAILEY Pre-printed Mirrored Text: ALTERATIONS TO R.R. AERO ENGINE PARTS Description of Part Drawing No Origin Experimental Test Report Signature of Exp'l Dep't that above is correct. Weight of Old Part Cost of old part Weight of New Part Cost of New Part Difference per Engine Signature of Mr. DeCLOSE that the above is correct. SIGNATURES DATE REMARKS Storekeeper's signature As advised above. Coils per winding & Parts in Work and Stores if scrapped it commenced NOTE.—We have arranged with the Admiralty that the Admiralty will only make these alterations when we propose to make any, and the consequent expense, if any, will be the cost of them and so that we may ascertain whether the Admiralty will pay or Rolls-Royce will have to pay. | ||