Dispensing – With flow controller or closure – Rotary – axially
Patent
1991-09-09
1993-02-23
Shaver, Kevin P.
Dispensing
With flow controller or closure
Rotary, axially
406128, 406145, B65G 5346
Patent
active
051882647
ABSTRACT:
A railroad hopper car discharge gate has slope sheets which terminate in a longitudinally extending lip, with the lips being spaced and there being a trough secured to the slope sheets beneath the spaced lips. Discharge from the gate is controlled by a rotatable longitudinal discharge valve shaft which extends between the lips of the slope sheets and is positioned to control flow from the gate interior above the slope sheets to the discharge trough. There is an operating handle for each end of the shaft, with the handles each being movable between a position in which the handle is locked on the shaft for rotation therewith, and a position in which the shaft is rotatable relative to the handle. There are stops positioned adjacent each handle for limiting rotation thereof. The valve shaft has a pair of axially spaced and axially extending recessed areas which are circumferentially non-aligned, but in part circumferentially overlapping. The handle stops permit rotation of the shaft by operation of only one handle between a fully closed position in which neither recess connects the gate interior with the discharge trough, two partially open positions in which one or another of the recesses connect the gate interior with the discharge trough, and a cleanout position in which one of the recesses is fully open and the other recess is partially open.
REFERENCES:
patent: 4312607 (1982-01-01), Van Auken
patent: 4345859 (1982-08-01), Robertson
patent: 4411560 (1983-10-01), McComb
patent: 4867615 (1989-09-01), Fritz
patent: 4975000 (1990-12-01), Fritz et al.
Parkow James C.
Seitz Robert F.
Gen-Tech, Inc.
Shaver Kevin P.
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