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).
Proposal to modify aero engine spark plugs with a fusible alloy plug.
| Identifier | ExFiles\Box 34\2\ Scan114 | |
| Date | 18th January 1919 | |
| 2 Woodbrook Villas, Ballygomartin Rd, Belfast. 18.1.19. [Stamp: V.I.D 21 JAN 1919] [Initial Stamp: F.R.] [Initials: CJ] Dear Sir, In reply to yours of CJG/E1618 of 1st June, 1918, might I ask whether you would be willing to give my proposal for modification of the sparking plug of aero engines, a trial? My suggestion was to replace the mercury cup in sparking plug by one containing a plug of fusible alloy. I have absolute confidence that the new arrangement would not be inferior to the present one & I believe would turn out much more efficient; it would, at any rate, be simpler to construct & cheaper. Trusting to hear from you soon. I am, Yours faithfully, J.{Mr Johnson W.M.} W. Hall The Manager, Messrs. Rolls-Royce, Ltd.. [Stamp: RECEIVED 22 JAN 1919] [Handwritten note: EH Please send suitable reply H] | ||