318 



STEEL BINS. 



CHAP. VIII. 



Ore Bins for Cananea Consolidated Copper Company. Detail drawings of a hopper ore 

 bin built by the Cananea Consolidated Copper Company are shown in Fig. 17. The ore is coarse 

 and heavy and is dumped from cars on the top of the bins. The ore is drawn off through gates 

 on the bottom and is carried away on a conveyor. The side plates are J in. thick and are stiffened 

 with channels spaced about 4 ft. apart. The hopper plates are f in. thick and are stiffened with 

 10 in. channels. 



"^ :<-i-. 



3>'^ 



HalF Half 

 End View Cross Section 



Longitudinal Section 

 at Center 



FIG. 1 8. STEEL COAL BINS AT COKETON, W. VA. 



Steel Coal Bins for Davis Coal and Coke Co. The steel coal bin shown in Fig. 18 was designed 

 by the American Bridge Company for the Davis Coal and Coke Co. for the coke ovens at Coketon, 

 W. Va. The framework is made of structural steel and is covered with corrugated steel. The 

 bin is lined with 3 in. oak plank spiked to timber spiking pieces which are bolted to the steel 

 beams. The bin is carried on plate girders each having a web plate 96 in. X f in., and top and 

 bottom flanges of two angles 6" X 6" X A"- The bin is filled by a belt conveyor passing over 

 the top of the bin, as shown in Fig. 18. The coal is drawn from the bins through gates into cars 

 and is hauled to the coke ovens. The capacity of the bin is 300 tons. 



References. For the design of reinforced concrete bins, and for additional data and examples, 

 see the author's "The Design of Walls, Bins and Grain Elevators." 



