pa1778data.pdf

U.S. STEEL DUQUESNE WORKS
HAER No. PA-115
(Page 137)
the front end, is lined with 2" thick tiles manufactured by the
Indusco Interstate Industrial Company of Chicago, Illinois.
Design Date: 1952.
Construction Date: 1969.
8. Coke Breeze Feeder Conveyors: See I - A - 9 for
description.
Installation Date: 1959.
9. Main Coke Breeze Conveyor: See I - A - 10 for
description.
Installation Date: 1959.
10. Control Room: The control room for the raw materials
delivery system at blast furnace number 3 is located in
approximately the same relation to the skip pit as the control
room at blast furnace number 1 is located relative to the hoist
bucket pit. It is the same size and contains equipment which
perform roughly the same functions as the control room at blast
furnace number 1.
Construction Date: 1953.
11. Counterweight Hoist Tower: Located on the east wall of
the stockhouse, just south of the skip pit is the counterweight
hoist tower. Made up of structural I-beam construction, it rises
up to the level of hoist house number 3 and is 10'-4" wide x 12'-
6" long x 76*-6 7/8" high. The counterweight system consists of
three pairs of 6 f -l 1/4" diameter 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 wire ropes, leading from
the winch drum assembly in the hoist house, which are attached to
two counterweights that run on rails up and down the
counterweight hoist tower as the skip car travels along the skip
track.
Construction Date: 1927.
B. Hoist House:
1. Hoist House Building: The hoist house building is
located approximately 15'-0" west of blast furnace number 3. It
is 25'-9" wide x 59'-7" long. The height of the building is 18'-
0" from the floor to the underside of the truss for a distance of
42 , -4" measured from its northern end. The remaining 17'-3"/
measuring to its southern end, is 32'-9" high from the floor to
the underside of the truss. The building is mounted on a steel
column supported platform which extends 49'-6" above the trestle.
The columns of the steel framed building are welded to steel
plates which are bolted to the concrete floor of the building.
The north and south ends of the building's gable roof are