pa1778data.pdf
pa1778data.pdf
pa1778data.pdf
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U.S. STEEL DUQUESNE WORKS<br />
HAER No. PA-115<br />
(Page 183)<br />
6. Laid out linearly from north to south, the seven chamber<br />
roller type unit operated on 209 kilowatts and was used to harden<br />
and temper bars up to 25' long from 3/8" to 8 1/4" in diameter.<br />
The entire installation is 3 66' long. It consists of a motor<br />
powered entry table; a preheating, intermediate, and high<br />
temperature heating furnace, each 29' long x 4 , -6" wide x 7'-3"<br />
high; a 29' long x 4'-6" wide x 10' deep oil or water quench tank<br />
serviced by a quench table suspended from the quench drive<br />
platform by means of cable, pulley, and drum arrangements; a 29*<br />
long x 5'-6" wide x 7'-3" high strain relief furnace; a transfer<br />
table and cradle; a preheating, intermediate, and high<br />
temperature tempering furnace, each 29' long x 5 f -6" wide x 7'-3"<br />
high; and a motor powered run-out table with cradle.<br />
Installation date: 1943.<br />
D. Car Bottom Furnace No. 2: Manufactured by the Gas<br />
Machinery Company of America, this furnace is located about 20'<br />
west of the Continuous Electric Heat Treating Line. It is of the<br />
same approximate dimensions and serves the same purpose as Car<br />
Bottom Furnace No. 6.<br />
Installation date: 1943.<br />
E. Car Bottom Furnace No. 3: Located about 20' west of Car<br />
Bottom Furnace No. 2, this furnace was built by the same<br />
manufacturer to the same approximate dimensions and for the same<br />
purpose as Car Bottom Furnace No. 6.<br />
Installation date: 1943.<br />
F. Car Bottom Furnace No. 4: Located about 40' west of Car<br />
Bottom Furnace No. 3, this furnace fits the general description<br />
of Car Bottom Furnace No. 1.<br />
Installation date: 1943.<br />
G. Car Bottom Furnace No. 5: Located approximately 10' west<br />
of Car Bottom Furnace No. 4, this furnace fits the general<br />
description of Car Bottom Furnace No. 1.<br />
Installation date: 1943.<br />
H. Continuous Gas-Fired Heat Treating Line: Manufactured by<br />
Salem Brosius Inc., the Continuous Gas-Fired Heat Treating Line<br />
is located approximately 15* west of Car Bottom Furnace No. 5.<br />
Laid out linearly from north to south, the four chamber roller<br />
type furnaces were used to harden and temper bars up to 9 * in<br />
diameter and 40' long. The line consists of a motor powered<br />
entry table, a 47*-10" long x 10*-5" wide x 8' high heating<br />
furnace; a holding furnace of the same dimensions as above; a<br />
46*-6" long x 12'-3" wide x 14'-2" deep water quench tank<br />
serviced by a quench table suspended from the quench drive<br />
platform by means of cable, pulley, and drum arrangements; a