DOUBLE TURBINE WATER WHEEL. Fig. 1 of our engravings gives a perspective view and Fig. 2 a detail vertical section of what is known as the 'Eclipse' double turbine water wheel. We will at once proceed to de- of which are now in successful operation in the United States Mexic and Japan. Patented March 24 1868 and July 26 1870. and a patent on recent improvements has just been allowed. For further information address the Stillwell & Bierce Man- A where it is secured by a nut. The pivot of this standard metallic bar F. This peculiar connection of the central standard with the other parts is shown enlarged in Fig. 3. It scribe its construction and point out the advantages claimed for the same. as shown in the engraving arranged alternately between three plates of different degrees of inclination and which have an inward and downward discharge. It is cast in one piece and without cores thus insuring great strength. It will be noticed that the interior of the wheel is somewhat of a conical form by which construction a free vent for both tiers of buckets is provided. The cylinder which supports the bridge tree and the outer chute case are both comprised in one casting shown at B. This cylinder and chute case are more fully represented in Fig. 1 from which the form of the outer chutes will readily be understood. The inside register gate C is also cast in one piece with fixed water ways corres ponding with the chutes in the outer case. The two com bined form one duplex chute. This gate C hangs upon the outer case by one bearing only as shown and is moved for the purposes of admitting and shutting off the water by means of a segment and the pinion D. By its operation an equal delivery of the water on to all parts of the wheel is secured ; neither the direction of the cur rent nor the angle formed by the steam and the face of the bucket is ever changed nor is the ve locity of the water checked. The top of the wheel ease also a single casting extends over the regis ter gate and
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