Cameron, Kerkam, Sutton, Stowell & Stowell
Anti-oxidation coatings
 An anti-oxidation coating, particularly for the exposed peripheral regions of graphite brake discs for aircraft, comprises a layer of silicon on the surface of the graphite, a layer of nickel overlying the silicon layer and a layer of chromium overlying the nickel layer. The silicon layer is suitably formed by flame-spraying followed by arc-melting, and the nickel and chromium layers by electroplating. 
The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland
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F16D C04B C04B Y10T Y10T C04B
inventional inventional inventional additional additional inventional
Leslie James
Boyne Hill