Control handle arrangement for power takeoff valve

Details Control handle arrangement for power takeoff valve Control handle arrangement for power takeoff valve

1983-04-25

1985-08-20

Smith, Gary L.

Machine element or mechanism

Control lever and linkage systems

Elements

74473R, 74532, G05G 110

Patent

active

045356475

ABSTRACT:
A control arrangement is disclosed which is particularly suited for selective operation of a reciprocable member, such as the valve spool of a hydraulic power takeoff valve on a material handling implement. The arrangement includes a handle bracket which is adapted to be mounted in association with the hydraulic valve, and further includes a control handle adapted for releasable connection with the spool of the valve. The movement of the handle is guided by the handle bracket such that in a first position of the handle with respect to the valve spool, the handle can be positioned within a detent notch in the bracket for maintaining the valve spool out of its neutral position in opposition to its associated centering springs. The control handle can further be connected to the control member in a second position. In this second position, the handle is no longer receivable within the detent notch, thus requiring continued manipulation of the handle to maintain the valve spool out of its center, neutral position.

REFERENCES:
patent: 613041 (1898-10-01), Kamerer
patent: 2014759 (1935-09-01), Clay
patent: 2265260 (1941-12-01), Argo
patent: 2427461 (1947-09-01), Johnson
patent: 3268204 (1966-08-01), Grove
patent: 3975971 (1976-08-01), Radenovic
patent: 4078449 (1978-03-01), Kelly

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