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).
Blueprints and production notes for the Wraith III Horn Switch.
| Identifier | ExFiles\Box 166\9\ img148 | |
| Date | 3rd November 1937 | |
| 60661 To HPS.{Horace Percy Smith - Experimental Factory Mgr} c. RHC{R. H. Coverley - Production Engineer}/CAN. c. BY.{R.W. Bailey - Chief Engineer} c. Rm{William Robotham - Chief Engineer}/RC.{R. Childs} c. BY/HEB.{H. Biraben} RC{R. Childs} (Released 5.11.37). BY/ED.{J. L. Edwards}2/B.3.11.37. Wraith III : Horn Switch : D.CD.126. (Sec.8050). Please receive herewith the following blueprints detailed from the above scheme. DW.507 - Inner Piece - Horn Button. DW.508 - Spring Plate - Contact Points. DW.509 - Spring - Horn Switch. DW.510 - Stop - Horn Button. DW.511 - Base - Horn Switch. DW.512 - Casing - Horn Switch. DW.513 - Support - Spring Plate. DW.514 - Assembly - Spring Plate and Support. DW.515 - Cable Connections on Base. (Strikethrough) DW.516 - Assembly - Button and Inner Piece. DW.517 - Horn Switch LOP. DW.527 - Temporary Base - Horn Switch. The remainder of the parts called for on the LOP. are existing production pieces. As the die will not be available to produce DW.511 - Base, we have included DW.527, which is a simplified arrangement, which can be made by turning from a block of material in either Ebonite or Bakelite. Will you please put a model in hand. It should be noted that this design of Horn Button can only be used with the steering column having the ignition control deleted. One set of blueprints herewith to RHC{R. H. Coverley - Production Engineer}/CAN. BY/FD.{Frank Dodd - Bodies} | ||