lar piston, which shaft usually employed, and therefore requires the may be raised to permit use of only one stuffing box and other features inci- the water to flow, and dent to the two shafts. Further, it enables several when lowered will stop reversible propellers to be mounted in tandem on the… … venient point in the vessel a hand C, to the hydrant cham- ber. Projecting up- lever is mounted, which is suitably REVERSIBLE SCREW-PROPELLER,. NON-FREEZING HYDRANT. connected to the propeller shaft and ward from the section, may be actuated to slide the same longitudinally. Our C, is a cylinder…
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