(under subclass 231) Subject matter wherein means are provided for adjusting the fulcrum of the lever or the length of the lever with relation to the fulcrum and/or valve, the adjustment being made during non-operative periods and not being affected by the valve actuating operation.
(1) Note. See the class definition of Class 137, section 5, for search notes on manual valve actuation and adjustment of valve actuating means.
SEE OR SEARCH CLASS
137, Fluid Handling,
426, for float operative valves with level adjusting or selecting means.
