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).
The fitment of a switchbox with an extended armature contact to a 40/50 Chassis 18-EX.
| Identifier | ExFiles\Box 65\2\ scan0039 | |
| Date | 22th November 1929 | |
| X7730. EFC. {E. Fowler Clarke - Electrical Engineer} BY {R.W. Bailey - Chief Engineer} /RD3/DM. {D. Munro} 22.11.29. 40/50 Chassis 18-EX for R. {Sir Henry Royce} Switch Box Section 8160. Lec.2597. We wish to put on to this chassis a type of switchbox having an extended armature contact which is provided by the switchbox to L.C.P. D.71895. This was first issued to you in BY {R.W. Bailey - Chief Engineer} /RD6/ML.5.11.28. We do not know whether you have one already built up in your stores, but in any case, we attach herewith one blueprint of the part list for your information. You will find the majority of the parts can be obtained from production with the exception of the following:- D.71867 Switch Body. D.71868 Contact Maker - Right Hand. D.71869 Contact Maker - Mag.Earth. D.71873 Stop Plate. D.71877 Bus Bar. D.71878 Magneto Terminal. D.71879 Connector - Mag.Terminal. D.71882 Packing Piece. D.71890 Contact Plate - Right Hand. BY {R.W. Bailey - Chief Engineer} /RD. | ||