Glass Plates- the origins

[Huw Eastwood]

I saw them most often in the BT places. What was Stellite, was that the hardfacing weld? I always heard that referred to as Cobalarc?

Thinking back it was probably BT where I saw them too, they also seemed to find use for the dual SRD's.
Yes stellite and cobalarc are both trade names, they always seemed to refer to cobalarc specifically when making good after drilling, presumably as it was easily arc welded, as from memory Stellite was a pain back in those days as it was more a factory thing deposited by oxy/acetylene.