Bulletin . Charging Hopper. k\\\\\\:v C V>^, ^d L_ //?cr pare //ear Discharging rork andDoor. COARSE ORE FURNACE. JOHN NEATE PAT. QUICKSILVER RESOURCES. 223 ^The ore is charged with coke in alternate layers, using from Zl% to i% of coke,depending on the draft in the furnace. The drawing space in the bottom of thefurnace is open, leaving access to the air and furnishing the draft. The top of thefurnace consists of a hopper, with doors at the bottom, moved by levers from thecharging Moor. At this floor there is besides a cover with a water seal, and providedwith a glass panel to judge of
Bulletin . Charging Hopper. k\\\\\\:v C V>^, ^d L_ //?cr pare //ear Discharging rork andDoor. COARSE ORE FURNACE. JOHN NEATE PAT. QUICKSILVER RESOURCES. 223 ^The ore is charged with coke in alternate layers, using from Zl% to i% of coke,depending on the draft in the furnace. The drawing space in the bottom of thefurnace is open, leaving access to the air and furnishing the draft. The top of thefurnace consists of a hopper, with doors at the bottom, moved by levers from thecharging Moor. At this floor there is besides a cover with a water seal, and providedwith a glass panel to judge of the condition of the charge. When the latter is atred heat a charge is withdrawn from the bottom. This is done by withdrawing thefork (c;, resting on the bar (d). The drawing is done at intervals varying fromIJ to 24 hours according to the draft which is dependent upon atmospheric ore must be in pieces of IJ inches or over. Judging from the furnace dump, acertain amount of clinkering takes place in the fur
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