Daily Arizona silver belt., 1907-01-04
AN ENGINEERING ACHIEVEMENT
Sixty Feet Added to the Stack of the
 Copper Queen Shelter

The great Copper Queen shelter stack realized its phenomenal growth of sixty feet in less than three hours Wednesday forenoon, says the Douglas Dispatch The manner in which this marvellous work was accomplished con stitutes one of the finest feats of con struction ever undertaken in this la cality.
 The original stack was 200 feet and a few inches in height and 25 feet in diameter.
 The company found it necessary to raise this stack in order to increase draft and save iue dust. This under taking was absolutely formidable, since shutdown for the purpose was not to be considered. A contract was entered into with the Wisconsin Bridge < Iron company to place an extension of sixty feet on the stack with shutdown not to exceed four hours. The contract fur ther provided that if the shutdown was of more than four hours duration, the contractor would be assessed penalty amounting to several thousand dollars per hour for all time consumed by the operation in excess of four hours and that in the event the extension was put into place without a shutdown the con- tsactor was entitled to a stipulated pre-, aium on his original figures.
 The work was begun about four months ago. It consisted in the con struction of false work by network of timbers l2xl2 braced and bound by 3xl2's and other heavy material bolted to a finish. After multitude of diff entities the false work was brought up to level with the main stack and the plan of the contractor revealed itself.
 On this false work, which thou sand dOubting Thomases predicted would collapse under the strain, the sixty-foOt extension was built, despite the banks of sulphur smoke which seem ed determined to balk the enterprise. The new section of stack was construct ed on rollers with the intention of roll ing it carefully over on the old stack and attaching it with the least possible delay.
 Yesterday that magnificent piece of work was accomplished. Many had watched for the arrival of the moment when the climax should come, as they watch for total eclipse of the sun. Figures of men could not be distin- guished from Douglas. but suddenly it dawned on the observer that the space between the section of stack and the I IA continued to widen with rapidity that astonished the multitude the while great wreath of smoke completely sur rounded it.
 They were moving it, yet they had not shut down. There was quite thrOng of spectators on the scene. The men on top knew their business. Lit tie by little the gap widened It did not topple as predicted. Many cold blooded pessimist wished that it would just to vindicate his hurtful predic- tions, but it did not. Now the smoke coming from the original stack began to part, and slice of < began to pour through the new section A cheer went up which must have sounded sweet to the skilled men above who had labored so long amid peril and against the judg ment of timid hearted multitude.
 Now fully half of the volume of the smoke from the mighty furnaces below began to find it's way through the new section. It was settled at this point. Those of the throng held their breath. not with suspense, since the end was Tn sight, but because they wanted to save their voices for final cheer.
 They had not long to wait. Just as the whistle blew, signal futtered over the walls of the false work announcing that the new section was ready to lower and attach and the big yell went up.
 The feat was accomplished in little less than three hours, while not an engine slowed up, not a blower ceased it's mighty mission, not safety valve popped off as the result of steam gener ated without being utilized.