nes (deflector), which and are caused to move in unison by means of the or- are fixed to a casing, can be made to rotate in an oppo- producing a foundry coke, a heavier charge of coal is dinary longitudinal central bar. site direction to the central wheel (see diagram), so that required, and, while… … anthracite coal, I have the figures of a large foundry- man. In substance they state that, for a day’s work channels and vanes, the ring-valve having ports cor- the merit of being lighter than a wooden shutter. By in his foundry, under anthracite, 3,000 lb. of fuel were responding with the forward…
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