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).
New ignition contact breaker developed by Lucas, including a diagram and material analysis.
Identifier | ExFiles\Box 27\2\ Scan394 | |
Date | 24th October 1935 guessed | |
(2) that this should be able to carry a heavy current without suffering from local fusing, but Oliver Lucas assured me that these switches are tested up to a stalling current of 400 amps, and the result is a light simple and inexpensive switch. Ignition Contact Breaker. Lucas have developed a new contact breaker for which they claim a number of advantages. This is shown roughly in the illustration:- The breaker arm is very short, and made apparently of one of the linen bakelites. It forms its own bearing on the pivot pin and its own pad in contact with the normal type of breaker cam. The breaker arm spring is well looped round to provide a favourable distribution of bending load, and it is made of stainless steel to avoid corrosion breakage. Lucas say that in their experience these springs only break when they corrode, and curiously enough I have recently had one of the springs break on my Delco Remy ignition after six years of service, the broken spring having recently become rusted. It has been ascertained that the stainless steel | ||