pa1778data.pdf
pa1778data.pdf
pa1778data.pdf
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U.S. STEEL DUQUESNE WORKS<br />
HAER No. PA-115<br />
(Page 133)<br />
high balcony running along the eastern wall of the hoist house<br />
building are two stocKline test motor and winch drum assemblies.<br />
On the balcony's north side is a 2 hp, 8 amp, 230 volt Reliance<br />
D.C. motor which operates at 1200 rpm. It is connected to a l 1 -<br />
0" diameter winch drum attached to a Jones-Herringbone speed<br />
governor. The speed governor, manufactured by Hewitt-Robins, has<br />
specs of 4.26 hp and 1200 rpm. The arrangement of the stockline<br />
test rod motor and winch drum assembly on the balcony's south<br />
side is the same as noted above with the exception of the motor.<br />
It is a 2 hp, 8 amp, 250 volt Reliance Model "T" heavy D.C. motor<br />
which operates at 1200 rpm. The steel cable which is wound<br />
around both winch drums is approximately 1/4" in diameter.<br />
Installation Date: 1930.<br />
6. Electric Hoist: A 10-ton Sheppard service crane equipped<br />
with a "C" hook is suspended from a monorail located 15*-7 1/2"<br />
from the hoist house floor, which extends along the centerline<br />
between the two skip incline motors.<br />
Installation Date: 1924.<br />
7. Counterweight Hoist Tower: Located on a platform just<br />
south of the hoist house is the counterweight hoist tower which<br />
extends upwards from the stockhouse. See item number I - A - 12<br />
for description.<br />
C. Furnace Top:<br />
1. Large Bell Hopper: The hopper which sits above the large<br />
bell at the top of the furnace is 8'-0" high with a top inside<br />
diameter of 15 ! -5 1/2", tapering to a bottom inside diameter of<br />
13'-0". The flange surrounding the top of the hopper is 6 1/4"<br />
wide. Installation Date: 1968.<br />
2. Gas Seal Hopper and Seal: The gas seal hopper is<br />
approximately 4*-0" high. Its bottom flange sits on top of the<br />
large bell hopper top flange. The bottom inside diameter of the<br />
hopper is 15*-5 1/2" and its top inside diameter is 4'-l". The<br />
top diameter including the flange is 6'-3". Inside of the top<br />
inside diameter of the hopper is a hard rubber bell shaped gas<br />
seal approximately 18" high.<br />
Design Date: 1896.<br />
3. Large Bell: The large bell has a diameter of 14 , -0" and<br />
is 9'-5" high. It is attached by a 6 1/4" shaft to a steam<br />
operated lever arm which lowers and raises it.<br />
Construction Date: 1966.<br />
4. Steam Cylinder: Located on the top of the furnace