e illustrations herewith show a ventilating fan, an old style forge for horseshoers, but having an im- and means for adjusting the hub thereof, by which the blades can be readily fixed at any desired angle of in- proved tuyere iron; Fig. 2 shows a forge for general clination, by simply loosening… … the ring, the two sections of the hub, when the rods outward through the base. Be- have been placed in position, being held in positive yet low this crank is a handle, which detachable connection by a series of bolts. operates a slide at the bottom of the tuyere iron, that the moisture chamber may…
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