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).
Design and performance comparison basis for series-wound chassis starting motors.
| Identifier | ExFiles\Box 61b\3\ scan0070 | |
| Date | 11th June 1920 | |
| X.543 [Handwritten, crossed out] 86027 [Handwritten] 11.6.20. X.543. DESIGN AND PERFORMANCE BASIS OF COMPARISON FOR SERIES WOUND CHASSIS STARTING MOTORS. A.{Mr Adams} Weights. (a) Complete machine with pinion or sprocket but without suspension. (b) Armature complete without pinion or sprocket. (c) Bare weight of carcase and pole pieces. (d) Weight of armature stampings. (e) Weight of armature copper (exclusive of commutator). (f) Weight of field copper. B. Magnetic Circuit. (a) Form and dimensions of carcase and poles. (b) Air gap. (c) Form, dimensions, number and space efficiency of armature stampings and armature. (d) C. Field Circuit. (a) Number of wound poles. (b) Size of conductor. (c) Number of turns per coil. (d) Arrangement of coils. (e) Resistance of field circuit (cold 18°C). Contd. | ||