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).
Hand-drawn winding diagram for a 24-slot armature.
| Identifier | ExFiles\Box 68\4\ scan0192 | |
| Date | 24th February 1948 | |
| Top left text: 2 | 24 / 48 Top right text: X. 1640 Top note: Yd Down ⊗ to positive brush Bottom title: WINDING DIAGRAM OF 24 SLOT ARMATURE Diagram labels: - Magnetic Poles: N (top and bottom), S (left and right) - Commutator Brushes: +ve (top and bottom), -ve (left and right) - Outer Ring Numbers (clockwise): 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62, 64, 66, 68, 70, 72, 74, 76, 78, 80, 82, 84, 86, 88, 90, 92, 94, 96 - Inner Ring Numbers (clockwise): 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, 45, 47, 49, 51, 53, 55, 57, 59, 61, 63, 65, 67, 69, 71, 73, 75, 77, 79, 81, 83, 85, 87, 89, 91, 93, 95 | ||