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U.S. STEEL DUQUESNE WORKS<br />

HAER No. PA-115<br />

(Page 128)<br />

Rotary Car Dumper, Blast Furnace Area: Drawing #30424, May 13,<br />

1957," "Key Diagram - Ore Bins and Conveyors - North End, Rotary<br />

Car Dumper, Blast Furnace Area: Drawing #30425, May 6, 1957,";<br />

Heyl and Patterson Inc., Instructions for Operation, Maintenance.<br />

and Lubrication of Rotary Railroad Car Dumper with Retarder<br />

(Pittsburgh: 1958), 2-7; Heyl and Patterson Inc., Railcar Dumping<br />

Systems (Pittsburgh: 1985), 3; United States Steel Corporation,<br />

"Information Sheets - Car Dumper and Conveying System for<br />

Duquesne Works," (Duquesne: 1956), 3-4.<br />

4.United States Steel Corporation, "General Arrangement -<br />

Duquesne Works, Duquesne, PA - No. 4 Ore Bridge, 15 Ton Capacity:<br />

Drawing #48435, August 8, 1960," "General Arrangement and Field<br />

Work, Trestle Car Puller, 28'-0" Blast Furnace #6: Drawing<br />

#48385, August 30, 1962."; Stephens-Adamson Mfg. Company,<br />

"General Arrangement of Item #1, 10,000# Continuous-Reversible<br />

Wire Rope Car Puller W/Rope Speed of 40 F.P.M. for U.S. Steel<br />

Corp. Duquesne Works, Duquesne, PA: Drawing #53685, April 14,<br />

1962," "General Arrangement of Item #2, 10,000# Continuous-<br />

Reversible Wire Rope Car Puller W/Rope Speed of 40 F.P.M. for<br />

U.S. Steel Corp. Duquesne Works, Duquesne, PA: Drawing #53686,<br />

June 14, 1962,"; United States Steel Corporation, "General<br />

Arrangement Car Puller, Coke Trestle, No. 2 Blast Furnace:<br />

Drawing #49942, January 29, 1962," "Beams Bl to B24 Inclusive,<br />

Car Puller, No. 3 & No. 4 Blast Furnaces: Drawing #29876,<br />

February 29, 1960."<br />

5.United States Steel Corporation, "Feeder and Hopper<br />

Arrangement, Vibrating Feeder System, Rotary Car Dumper, Blast<br />

Furnace Area: Drawing #58878, July 3, 1970."<br />

* All original drawings cited are in the possession of<br />

U.S.X. United States. Steel Division, Engineering Office,<br />

Clairton, PA.

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