pa1778data.pdf

U.S. STEEL DUQUESNE WORKS
HAER No. PA-115
(Page 118)
4. Car Pullers Number Four and Five: Car pullers number
four and five, designed by the Stephens-Adamson Manufacturing
Company, are also 10,000 pounds continuous reversible wire rope
and car puller machines. It served the north and south
stockhouse sinter fines bins at blast furnace number six. The
south stockhouse f s power equipment is arranged and driven in much
the same manner as car puller number three except that the motor,
drive, and winch drum assembly is laid out on a north-south,
rather than east-west axis. The motor, gear drive, and winch
drums sit on top of a steel column supported platform
approximately 4'-o" above grade and are located 2l , -0" east of
the sinter fines bins centerline, 107'-6" south of the centerline
of blast furnace number six. The system is connected by two 7/8"
diameter steel cables. The cable which is wrapped around the.
winch drum south of the motor and gear drive provides an anchor
for the system. It is tied to a steel frame located 12*-0"
directly south of the winch drum. The cable which is wrapped
around the winch drum north of the motor and gear drive travels
around nine 24" diameter sheave wheels laid out in a 207'-0" long
x 30*-0" wide rectangle which surrounds the east and west sinter
fines tracks and before returning to the winch drum. Attached to
the taut steel cable rectangle near the southern end of its
eastern border and near the northern end of its western border is
a sling assembly equipped with a "C" hook which is used to tow
the railroad hopper cars onto the east and west sinter fines
tracks. Car puller number five, located in the north stockhouse,
is a mirror image of car puller number four.
Construction Date: 19 62.
in. ore Yard:
A. Ore Yard: The 226'-0" wide x 1653'-0" long x 26'-0" deep
rectangularly shaped ore yard is laid out on a north-south axis
to the west of blast furnaces number one through six. It is
doglegged by 3 degrees for a distance of 544'-0" on its southern
end. The ore yard wall, which encompasses its north, east, and
west sides is constructed of rough faced ashlar. The eastern wall
is 7'-9" higher than the western wall. Along the top of the east
and west ore yard walls are rails for the ore bridges to travel
on. Construction Date: 1895 - 1897.
iv. ore Bridge:
A. Ore Bridge Number Three: Ore bridge number three was
designed and built by the Heyl and Patterson Company in 1954 and
is laid out on an east-west axis across the ore yard. Made out
of riveted construction, it consists of a pier and shear leg
which carry a 333'-0" long x 20 l -0" wide Warren bridge span. The