nd allows the valve to open when the fectly self-adjusting, its wearing surfaces are exceedingly tubes descend, so that they may become filled with water. large; it has no gearing or multiplicity of parts; and the —_———_—=> +o A chain, attached as shown to tubes, C, serves to raise and way in which… … bears on the jaw, C, Fig. 8. The under face of this jaw is verse order, a small inclined line is drawn through one of lower the device as desired. The tubes may be arranged to V-shaped. In each of its sides is a recess to accommodate the side slots in the frame. This indicates the mode in which…
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