Locking hand lever for operating a valve or the like

Details Locking hand lever for operating a valve or the like Locking hand lever for operating a valve or the like

1988-03-18

1990-01-02

Smith, Gary L.

Machine element or mechanism

Control lever and linkage systems

Elements

74543, 74545, 70175, 251 95, 251102, G05G 104, F16K 3500

Patent

active

048905062

ABSTRACT:
A hand lever in particular for actuating a butterfly valve or the like in pipelines includes an outer lever portion which encases an inner lever portion and is movable in longitudinal direction thereof relative to the latter. At its forward end, the inner lever portion is fixedly connected with an element, such as an operating shaft which is operatively connected to the valve. The outer lever portion is provided with projections which are engagable in a stationary toothed wheel supported by the shaft. The movement of the outer lever portion for engaging in or disengaging the projection from the toothed wheel is obtained by a control grip which is swingably mounted to the inner lever portion and acts on the outer lever portion via a nose.

REFERENCES:
patent: 1313253 (1919-08-01), Brown
patent: 3311128 (1967-03-01), Taylor
patent: 4109673 (1978-08-01), Horowitz
patent: 4193320 (1980-03-01), Oota
patent: 4471801 (1984-09-01), Lange

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