pa1778data.pdf

U.S. STEEL DUQUESNE WORKS
HAER NO, PA-115
(Page 117)
two. It is powered by a 20 hp, 1750 rpm Sterling A.C. motor
connected to a Falk gear drive which is attached to a 18"
diameter winch drum wrapped with a 7/8" diameter steel cable.
The motor, drive, and winch drum assembly is located on a 10 f -5
3/4" wide x 11*-8" long steel column supported platform 11'-6"
below the coke track system and 103'-6" north of the centerline
of blast furnace number two. The cable extends from the winch
drum in a northerly direction for a distance of SS'-G" where it
wraps around a 2'-6" diameter steel column supported sheave wheel
before rising vertically at a slight incline for a distance of
7 , -2 1/2" where it rides over, under, and between two 2 , -6"
diameter steel column supported sheave wheels upwards onto the
coke trestle platform. Attached to the end of the cable is a
large "C" hook which latches onto the hopper cars. The capacity
of the car puller is 40 feet per minute.
Construction Date: 1964.
2. Car Puller Number Two: Car puller number two serves the
stockhouse bins associated with blast furnaces number three and
four. Its motor, drive, winch drum, and pulley assembly operated
in the same manner as car puller number one with the exception
that the Sterling A.C. motor is smaller (10 hp @ 1800 rpm) and
the gear drive is manufactured by the Stephen-Adamson
Manufacturing Company.
Construction Date: 1960.
3. Car Puller Number Three: Car puller number three,
designed by the Stephens-Adamson Manufacturing Company, is a
10,000 pound continuous reversible wire rope and car puller
machine. It served the stockhouse coke bins associated with blast
furnace number six. The system is powered by a small motor
running at 1760 rpm connected to a Stephens-Adamson gear drive
which is attached to two 18" diameter winch drums straddling the
motor on a east-west axis. The motor, drive, and winch drum
assembly is located on a steel column supported platform
approximately S'-O" below, and in between the east and west coke
tracks, 161 , -4 1/2" north of blast furnace number six. A 7/8"
diameter cable extending from the western winch drum travels
around eight 27" diameter sheave wheels laid out in a 278*-0"
long x 25 , -3" wide rectangle which surrounds the east and west
coke tracks before returning to the winch drum located on the
east side of the motor. 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
eguipped with a "C" hook which is used to tow the railroad hopper
cars onto the east and west coke tracks. The capacity of the car
puller is 40 feet per minute.
Construction Date: 1962.