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).
List of parts required to complete changeover switches for aero battery ignition.
| Identifier | ExFiles\Box 168a\2\ img224 | |
| Date | 5th June 1936 | |
| To RHC.{R. H. Coverley - Production Engineer} HS{Lord Ernest Hives - Chair}/Wst.1/JH. 5.6.36. The following parts are required to complete the four changeover switches for aero battery ignition which have been made. These parts are necessitated due to alterations to the coil winding and armatures. D.{John DeLooze - Company Secretary} 6218 Armature (3 off). D.{John DeLooze - Company Secretary} 6217 Yoke (2 off). D.{John DeLooze - Company Secretary} 6220 Hinge Pin (4 off). D.{John DeLooze - Company Secretary} 6209 Pole for Coils (3 off). D.{John DeLooze - Company Secretary} 6237 Ferrule (3 off). D.{John DeLooze - Company Secretary} 6238 Thimble (3 off). D.{John DeLooze - Company Secretary} 6239 Retaining Nut (3 off). HS{Lord Ernest Hives - Chair}/Wst. | ||