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 replacement of switchbox components with new parts and associated blueprints.
| Identifier | ExFiles\Box 166\3\ img054 | |
| Date | 19th April 1939 | |
| c. ap. ✓ 6090 c. Rm{William Robotham - Chief Engineer}/RC.{R. Childs} o.{Mr Oldham} RHO/sld. BY/RD.14/B.19.4.39. ALL CHASSIS. SWITCHBOX. SECTION 8160. D.CD.834. (Sht.2). Grouping of Separate Switches. Further to our memo' BY/RD.2/B.25.10.38., please receive herewith blueprints of the following new pieces :- DB.{Donald Bastow - Suspensions}2357 - Face Plate - Switches. 1 off. DB.{Donald Bastow - Suspensions}2358 - Support Plate - Switches. 1 off. The above parts should be used in place of :- DB.{Donald Bastow - Suspensions}2013 - Face Plate. 1 off. DB.{Donald Bastow - Suspensions}2014 - Support Plate. 1 off. Please put 3 sets of these parts in hand. 1 set of prints herewith to Roy{Sir Henry Royce}/Les.{Ivan A. Leslie} BY/RD. | ||