pa1778data.pdf

U.S. STEEL DUQUESNE WORKS
HAER No. PA-115
(Page 232)
of the building, is a smaller motor-generator set that is laid
out on a north-south axis. It consists of a 50 hp Westinghouse
Type CX motor flanked on its southern side by a 5 kw Westinghouse
D.C. generator. On the northern side of the motor are two
Westinghouse D. C. generators each with a rating of 5 kw.
Located just north of the motor-generator sets and laid out
on a east-west axis is the 1250 hp Westinghouse D.C. reversing
mill motor and gear drive for the 22' finishing roll stands.
These roll stands are located in the 22* bar mill building on the
other side of the western wall of the bar mill motor room, and
are connected to the motor/gear drive assembly by a line shaft.
A Bowser forced lubrication system for the motor/gear drive
assembly of the 22" finishing roll stands is located just to the
north in the cellar of the building.
Located just north of the lubrication system and sitting on
the ground floor of the building along its inside western wall is
another motor-generator set. Laid out on a north-south axis, the
unit consists of one 65 hp General Electric Tri-Clad Induction
motor flanked by one 50 kw General Electric D.C. generator.
Construction date: 19 06.
F. Twenty-Two Inch Bar Stocking and Finishing Building: The
one story, 90' wide x 520' long bar stocking and finishing
building is laid out on a east-west axis. Constructed by the
Duquesne Works on a concrete foundation, the riveted steel-framed
building is adjacent to the north side of the 22" bar mill
building and the heat treatment building. There is a large
opening at its northern and southern ends so as to provide a
clear passageway to the bar mill building and heat treatment
building on its south and to the 22" shipping building No. 1 to
its north. The gable roof of the corrugated metal building is
supported by Fink trusses. Two 25-ton, and one 15-ton E.O.T.
cranes sit on top of a craneway which spans the width and runs
the entire length of the building.
Located inside of the building, next to the hot bed run-out
table is a Kron cradle type floor scale. Approximately 10' east
of the run-out table and floor scale are eight 35* long x 6'-2"
wide x approximately 4' deep slow gas-fired cooling pits which
are laid out on a north-south axis in two rows. The purpose of
slow or •controlled* cooling is to prevent ruptures which occur
in recently rolled bars when they are allowed to cool at room
temperatures.
Located near the inside eastern wall of the building and
laid out on a north-south axis are three open-topped pickling
vats. Made out of acid resistant brick, the two vats closest to