The Anaconda standard. [volume] (Anaconda, Mont.) 1889-1970, 1892-12-13


Esti0ates 80 The Csst anA Oesissbi1lty 81
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AAnuiactursng company os hinnsepos's
met WIN shs engineering COMMITTEES OF 'ne
anti-smoke COMMITTEES In response TO an
invitation to confer with thom In regard
10 the erection Of a hish stack. Mr..
Cillett arrived from Minneapolis Satur.
A.. ~ 49,. ~. ..s.-,.-;r- ,;,,s In
oay snc spsns tne ln'esven'ns nm :"
vis's'ne sne rarrost smcner ana soo.'ue
over the ground where u 10 proposed 70
put up the stack.
A. the meeting tonight those present In
addition To Mr.. Ciilett were: City Engi-
ncer Blackford and Messrp. Riregcrs,
Harper, Allen and Wilson. Preparatory
OF quoting facts and figures, Nj. Gilieit
stated that the erection oS such stack as
had been suggested ON 500 feet high and
lc feet in diameter woulu DO an exceeding
hasar.lous and diiiicult undertaking, and
to the present time. and an entirely now
Departure In the engineering world. The
highest shcct stack in the world at present
10 a27 feet high and In considered
monster. According 60 the esti-
m..,s msis: 2; S BY ,as sS.f
soIfoot stack. i2 feet In diameter, would
cost between Ga 200 and 81, goo, according
To the time IL Is ordered and tho existina
conditions of tho steel market aud freight
rates. This does not include the founda.
which are to bc built. The statement OF
the probable cost throw q dampcr ON the
committee, as Il Was nearly double what
some of them had expected. Mr.. Gillett
says the estimate Furnished provides for
stool three-eights Of an inch In thickness
At tho bottom, onc-quarter OF an inch
and three and one-sisth steel ., The
ton. Tho stack alone would weigh
about 10000 pounds and II will require 70
guy ropes TO Keep tho stack In position
and tIcse must be Of inch aud q quarter
Of this cable which would moan an addi-
tional weight Of about 20 tons. Tho wind
pressure is estimated al 15S,OO0 pounds on
the basis Of o velocity OF 10 milcs an
hour. This would give maximum strain
Of 5000 pounds on each one of tho 70 guy
stantial anchorage. The committee
roughly estimated tho cost Of each anchor
age st $50, which would mean 5000 in
ali for that branch of tho work.
The anchorages would be built Of masonry
and they would necessarily have to bc
pounds. Mr.. Giileu stated that
the stack would be securely braccd
on tho inside from top 20
bottom 10 prevent buckling. Tho guys
would DO placed at every so feet ut an
angle Of as degrees and their avoraes
length would bc 100 feet.
Mr. GiiIett said that nothing definite
could bo told about the length of time the
stack would last. Until IL had been tried
but no thought Il should prove very sesirn
ble. He did not think tho smoke would AZ
feet the interior OF the stack. and thls
opinion was shared In by several members
Oh the COMMITTEES.
Mr.. Ruc9er Thought that before TIN
high stack was put up o smaller one, sa,
100 feet high, should be built ~ an expert
ment.
Mr.. Harpcr thought q few heavy rnir
storms In conjunction with the strong sui
phur fumes might do serious damage ts
the interior of the stack NJ tho top. unt
suggested that tho topmost 20 or 30 fee,
should be OF copper, as better suited 10
Withstand the elements, Mr.. Wilson
stated that Superintcndont Hart of the
Bi-Metallic had used graphite paste OF
tho steel stacks nj his mills for some tim.
and with the most satisfactory res,ilts.