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Knight's Mechanical Encyclopedia (ed. Knight), L. (search)
nto five compartments, each of which is caused to actuate a crank on a vertical axis common to all. This carries a compound stop-cock, which admits the water to and discharges it from each compartment when filled. Payton's meter (C, Fig. 2970) contains two S-shaped arms, whose extremities during rotation are in close contact with each other and with the sides of the box. The arrows indicate the direction of the current. Similar devices are shown under rotary blower ; rotary pump. In Cochrane's meter for measuring liquids under pressure, the measurement is effected by a pivoted vessel resembling a double scoop, which tilts and discharges when either side is full. A bent lever below this is tilted back and forth at each movement of the scoop, actuating the registering mechanism. Atwell's cylindrical case has a piston E which turns on an axial shaft communicating motion to the register, and carrying an arm which, at the end of each stroke, changes a cylindrical valve F2 so a