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).
Letter from the inventor of the 'Vincent' Dual Sparking Plug offering the patent to the company for inspection.
| Identifier | ExFiles\Box 142\3\ scan0135 | |
| Date | 24th February 1937 | |
| The 'VINCENT' DUAL SPARKING PLUG A MONKEY GLAND for Motors. VINCENT PATENTED ALL OVER THE WORLD Patent No. 446/489, 1936. THE DUAL PLUG. Destroys Moisture before Engine is started. You always have a warm, dry Plug. Your Engine will be freed from Carbon. These Plugs give long life. No more starting troubles. Require no setting nor cleaning. Quicker Acceleration. Gives Increased Power. Less Battery Consumption. Suitable for all Petrol and Diesel Engines. Suited for 6 or 12 Volt Batteries. WE STRONGLY RECOMMEND THE DUAL PLUG. YOUR REF. OUR REF. Regstud prot THE HAYES, CARDIFF. 24th February 1937. The Secretary, Rolls Royce Limited, 14 Conduit Street, LONDON..............W.1. Dear Sir, I am taking this opportunity of approaching you with reference to a patent Heater Sparking Plug, which I have perfected during the past two years, and has been constantly in use for over twelve months. Some of my claims are on the attached letter-heading to save explanations here, but this is not merely a question of a Sparking Plug. There are items which can only be explained verbally. I would like you to see these plugs at my premises and I will undertake to pay all expenses incurred by you. I have not approached any Firm or individual, or exposed this Patent in any respect and I now offer you the first opportunity of inspecting same. I am the original inventor of the Universal Joint of 1910, the Rotor Plunge Pump, the Vincent Infinitely Variable Gears of 1911, (which was submerged) also the Vincent Rotary Positive Action Pump, and many other Patents. Owing to ill health I am unable to travel any distance, so I would ask you to please hand this letter to the right person, as it is important. This Patent has been applied for all over the world. Yours faithfully, Vincent | ||