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U.S. STEEL DUQUESNE WORKS HAER No. PA-115 (Page 143) balcony located along the eastern wall of the hoist house. Each assembly consists of a 2 hp Reliance Type T.D.C. motor which is connected, in series, to a gear drive and 12" diameter winch drum wrapped with 210 linear feet of 3/8" diameter wire rope. Installation Date: 1960. 7. Balcony Motor-Generator Sets: Located at the north end of the balcony are two small motor-generator sets laid out on a north-south axis. The southern most set contains a 40 hp, 1765 rpm, Reliance Duty Master A.C. motor, flanked by a 6.5 kw Reliance D.C. generator on its southern side and a 21 kw Reliance D.C. generator on its northern side. The northern most set contains a 40 hp, 1765 rpm Reliance Precision Built A.C. motor flanked on its northern side by a 6.5 kw Reliance D.C. generator. Installation Date: 1971. 8. Large and Small Bell Hydraulic Cylinders: Laid out on a north-south axis and located in the center of the 1953 hoist house extension at the southern end of the building are the Koppers Company manufactured large and small bell hydraulic cylinders. The size, arrangement and function of the cylinders match the description in section III - B - 6. Installation Date: 1953. 9. Air Receiver and Associated Piping: Located in the southeast corner of the 1953 extension of the hoist house building is an approximately 4'-0" diameter x 9'- 8" high air receiver manufactured by the Quaker City Iron Works of Philadelphia, Pennsylvania in 1953. The air receiver, which stores compressed air, has a system of small compressed air pipes connecting it to the large and small bell hydraulic cylinders. Installation Date: 1953. 10. Counterweight Hoist Tower: The counterweight hoist tower is located at the center of the 1953 hoist house extension near its eastern wall. See item number IV - A - 11 for description. C. Furnace Top: 1. Large Bell Hopper: See I - C - 1 for description. Installation Date: 1968. 2. Large Bell: See III - C - 2 for description. Construction Date: 1953. 3. Small Bell Hopper: See III - C - 3 for description. Installation Date: 1953.
U.S. STEEL DUQUESNE WORKS HAER No. PA-115 (Page 144) 4. Small Bell: See III - C - 4 for description. Construction Date: 1953. 5. Revolving Distributor: See III - C - 5 for description. Installation Date: 1953. 6. Receiving Hopper: See III - C - 6 for description. Installation Date: 1953. V. Blast Furnace Number Six: A. Stockhouse: 1. Stockhouse Building: The steel framed brick exterior stockhouse, located underneath the trestle, is broken up into two segments (i. e. north and south stockhouse) about the centerline of the blast furnace. The north stockhouse is 76'-0" wide x 152*-4 1/2" long x 15'-10" high. The south stockhouse is 76'-0" wide x 168'-7 1/2" long x lS'-lO" high. The eastern and western walls of stockhouse number 6 coincide with the eastern and western walls of the stockhouse for blast furnaces 1 through 4. Construction Date: 19 61. 2. Skip Pit: The SG'-O" wide x 58'-4" long x 40 , -2" deep concrete skip pit is located at the eastern wall of the stockhouse about the centerline of blast furnace number 6. Laid out on a east-west axis, the pit is divided up into three segments. A 30'-0" space laid out about the centerline of the furnace contains the remains of the main bridge and double skip track which led to the top of the furnace. Flanking the remains of the main bridge and double skip track are two 9'-7 1/2" wide spaces. The space north of the main skip bridge and double track fragment contain the remains of the coke breeze bridge and skip track. The space south of the main skip bridge and double track remains contain the remains of the clean up skip bridge and track. Construction Date: 1961. 3. Main Coke Breeze Conveyor: See description I - A - 10. Installation Date: 1959. 4. North Stockhouse Coke Delivery System: The north stockhouse coke delivery system transferred coke from coke bins suspended from a trestle to a waiting 400 cu. ft. capacity skip car in the skip pit. Installation Date: 1962. a. Coke Bins: Laid out on a north-south axis, five 46,000 cubic foot capacity coke bins, spaced approximately 14'-0"
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FART THREE: 1946-1988 U.S. STEEL DU
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seeks to develop it into an industr
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Installation Date: 1955. U.S. STEEL
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cooling tower has a capacity of 190
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* * tunnel beneath the clarifier. I
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construction carbon and alloy steel
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