Carrier armour manufacturer?

[Gordon Yeo]

The circular saw blades that Bob refers to had removable teeth that could be resharpened or removed when worn down or damaged. Keeping the saw running true in the kerf required it to have no distortion of the blade. If a spot on the blade over heated from excess rubbing and caused an expansion (bubble ) the saw would wobble beyond control and be unserviceable. This is where the saw hammerer services would be required. With proper training the hammer could hammer the steel back into its "flat" configuration and make the saw blade serviceable again. That is what must have been required to be done the armour plate for the carriers to flatten it.

Now, it's one thing to hammer a small area of a 3/16" thick saw blade back to flat by hand but it must have been a whole lot more complicated to hammer thousands of heavy carrier and Sexton plates.