An iron beam under construction at Carnegie Steel Company's Homestead Plant in Pittsburgh, Pennsylvania for use in New York City's Empire State Building. A huge ingot is brought to required temperature in a soaking pit at blooming mill. The ingot is picked up and put into a trolley. It is rolled into a belt and rolling operation starts. It is reduced to slab and taken for reheating.
An iron beam under construction at Carnegie Steel Company's Homestead Plant in Pittsburgh, Pennsylvania for Empire State Building construction in New York City. Hot ingot at plate rolling mill. Hot iron slab rolled into cover plates for columns at Universal Plant Mill. Slabs are rolled in machine. Then it passes on a cooling table. Cold iron plates on the table.
Iron beams under construction at Carnegie Steel Company's Homestead Plant in Pittsburgh, Pennsylvania for Empire State Building of New York City. Carnegie beams rolled into sections. An operator controls the rolling of the beams with a lever. Hot ingot takes shape of rough beam. Shear crops ends of beam.
Iron beam under construction at Carnegie Steel Company's Homestead Plant in Pittsburgh, Pennsylvania for the Empire State Building construction in New York City. American Bridge Company's Plant at Ambridge, Pennsylvania. Making Rivet holes for cover plates and wing bearing plates. Holes made by machine in beam. Iron scrape made by the process. Process of Multiple spacing punching on cover plates for rivet holes. Operator handle the manipulation according to the given design. Milling process of the wing bearing plates.
Iron beam under construction at Carnegie Steel Company's Homestead Plant in Pittsburgh, Pennsylvania for New York City's Empire State Building construction. American Bridge Company's Plant at Ambridge, Pennsylvania. Fabrication for engineering design. They place plates and fix it in frame for drilling. Workers drill cover and wing bearing plates by drill machine. Plates are placed to column shaft. Workers bring down the plates by crane and place it over beam.
Iron beam under construction at Carnegie Steel Company's Homestead Plant in Pittsburgh, Pennsylvania for construction of the Empire State Building in New York City. American Bridge Company's Plant at Ambridge, Pennsylvania. Riveting iron beam. Drill machine rivet C B section of the beam. Worker rivet side web section of the beam with a machine.
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