pa1778data.pdf

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