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).
Drawing showing the arrangement of coils in armature slots for a 17 slot, 51 commutator bar armature.
| Identifier | ExFiles\Box 34\3\ Scan108 | |
| Date | 23th October 1911 | |
| X.2642.C G4473 N.B. 51 Com. Bars 51 Coils 17 Slots 3 Coils 5 Conductors 102 Conductors Wave Wound Pitch 25 Manilla Paper .010 Thick Cotton Taping .0125 Thick ALTER 01 REPLACE ALL COPIES OF THIS TRACING IN FOLLOWING DEPTS. WHEN NECESSARY. WORKS REPAIR DEPT INSPECT ON DEPT PATTERN SHOP OUTSIDE CONTR QUARNDON 23-10-11 SCALE F SEC.SS.{S. Smith} ARRANGEMENT OF COILS IN ARMATURE SLOTS — 17 SLOTS 51 COMMr BARS | ||