pa1778data.pdf

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U.S. STEEL DUQUESNE WORKS
HAER No. PA-115
(Page 141)
deep skip pit is built of concrete construction. Its centerline
is located 35 f -0" off of the eastern wall of the stockhouse and
243'-3" off of the centerline of blast furnace number 3.
Construction Date: 1953.
6. Skip Incline and Track: The skip track consists of two
parallel sets of rails spaced 5'-8 1/2" apart, mounted to a 15'-
6" wide x approximately 9'-0" high inclined bridge, which rises
for a distance of lSl'-lO 1/2" from the stockhouse floor to the
top of the furnace along its centerline. The incline of the
bridge is approximately 60 degrees.
Design Date: 1952.
7. Skip Cars and Carriage: The skip cars and carriages on
both sets of tracks meet the requirements described in III - A -
7.
Design Date: 1952.
Construction Date: 1969.
8. Coke Breeze Feeder Conveyor: See description I - A - 9.
Installation Date: 1959.
9. Main Coke Breeze Conveyor: See description I - A - 10.
Installation Date: 1959.
10. Control Room: The control room for the raw materials
delivery system at blast furnace number 4 adheres to the
requirements described in I - A - 11, II - A - 8, and III - A -
10. Construction Date: 1953.
11. Counterweight Hoist Tower: The counterweight hoist
tower is located on the east wall of the stockhouse just south of
the skip pit. Rising to the level of hoist house number 4, the
tower, which is constructed of structural I-beams, is
approximately 5'-6" wide x 9'-0" long x 77'-0" high. The
counterweight hoist system consists of three pairs of 6*-l 1/4"
sheave wheels, one of which is located below the hoist house at a
45 degree angle. The sheave wheels are connected by 1 1/4"
diameter ropes to the skip incline motor, drive, and winch drum
assembly and to two counterweights which run on rails up and down
the counterweight hoist tower as the skip car travels along the
skip track.
Construction Date: 1921.
B. Hoist House:
1. Hoist House Building: Located approximately lS'-O" west
of and on the centerline of blast furnace number 4, the hoist