Carrier armour manufacturer?

[brengunman]

I've hear that when the armour, which was made from boiler plate (high carbon steel), was hardened by a quench and temper process, that it sometimes warped and was unusable. This was causing production delays so Ford (or maybe Montreal Locomotive Works who built the carrier hulls) looked for someone who could straighten warped steel panels. Apparently they found a manufacturer of lumber mill saw blades who had the expertise since saw blades must run true. Maybe these were the guys.
George