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).
Request for 18 adaptors to test 14mm sparking plugs in experimental cars with 18mm plug holes.
| Identifier | ExFiles\Box 58\3\ Scan143 | |
| Date | 24th May 1932 | |
| 81918 e. {Mr Elliott - Chief Engineer} To RHC. {R. H. Coverley - Production Engineer} From Hs {Lord Ernest Hives - Chair} /Rm. {William Robotham - Chief Engineer} Hs {Lord Ernest Hives - Chair} /Rm. {William Robotham - Chief Engineer} 2/MJ.24.5.32. 14 mm. Sparking Plugs. In order to gain experience on the 14 mm. sparking plugs, we wish to run them in our experimental cars. Will you therefore please make us 18 adaptors to fit in the existing 18 mm. sparking plug holes and to be threaded to suit the plug we hand you herewith. Hs {Lord Ernest Hives - Chair} /Rm. {William Robotham - Chief Engineer} | ||