ace in10)^ minutes, whereas it usually takes half an hour toburn out the supports. Our photograph was securedas the chimney fell over, and it shows the shaft in theact of telescoping. The largest, stack ever brought down by this methodwas one at a large paper mill at Manchester. It wasno less than… … BASE OF THE STACK UNDERPINNED, AND FUEL LAIS READY FOR BURNING The total weight of the structure was nearly 4,000tons. The process above described is that which is alwaysemployed when the stack has a large space into whichto fall, be it circular, square, or octagonal in shape.When, however, it has…
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