During ground works in March 2018 at The Manuel Works, Whitcross, several piles of what appears to be grog ( ground up firebricks) were uncovered.
Gordon Wyle kindly obtained a sample of each for me.
The piles are locacted in the area of the attached aerial view map.
Ex employees at the works confirm that this is where the grinding mill was situated which pulverised fire bricks into grog.
Grog is crushed firebrick. This is added to unfired fire clay mixes prior to the actual moulding of new firebricks. It is added to control the drying and firing behaviour of new bricks.
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Main pic – Sign at entrance to works Stein, Castlecary Fireclay Works, Castlecary, Stirlingshire. Stein, Manuel Firebrick and Refractory Works, Whitecross, Stirlingshire. Stein & Co, Anchor Brickworks, Denny, Stirlingshire. Milnquarter Fireclay & Gannister Works, Bonnybridge, Stirlingshire Below – 30/07/1948 – Linlithgowshire Gazette – (Government visit to Manuel Works (fourth biggest in world?)…see link for full…
