Importance

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Abstract

An apparatus for controlling the position of an operating handle includes a plate which couples such operating handle to a device such as a hydraulic valve. The plate includes a detent notch, a shoulder and a control surface. An auxiliary lever is mounted for pivoting movement between a first, engaged position and a second, disengaged position and is maintained in either position by a compression spring. Such compression spring exhibits toggling movement as the lever is moved between positions. The lever includes a pin for engaging the detent notch when the lever is in the first position and the handle is thereby retained in a predetermined position. When the pin is in contact with the control surface and with the shoulder, the handle is retained in an operating position. Movement of a stop mechanism to a position which does not obstruct handle movement also permits the operating handle to move to a 'float' position.

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First Claim