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).
Evolution of instrument board lighting from external floodlights to internal pea lamps.
| Identifier | ExFiles\Box 62\2\ scan0029 | |
| Date | 9th January 1932 | |
| HS.{Lord Ernest Hives - Chair} } FROM E.{Mr Elliott - Chief Engineer} BY.{R.W. Bailey - Chief Engineer} } X6135. E3/M19.1.32. C. to SG.{Arthur F. Sidgreaves - MD} WOR.{Arthur Wormald - General Works Manager} DA{Bernard Day - Chassis Design}/EV.{Ivan Evernden - coachwork} INSTRUMENT BOARDS. K.{Mr Kilner} 6135. From time to time the question of instrument board arrangements has been discussed by R.{Sir Henry Royce} at WW. and the scheme that ultimately emerged was a grouped arrangement of instruments combined with the switchbox and starter controls illuminated by external subdued floodlighting, and designed so that each instrument had its own glass and was individually detachable. With however the use of pea lamps in screwed sockets and celluloid covered ports in the instruments we now feel that we can have internal lighting without excessive complication and without losing any of the advantages of the desired, and we are therfore proceeding on these lines for J.{Mr Johnson W.M.} 3. E.{Mr Elliott - Chief Engineer} | ||