Apparatus for operating offtake and main valves

Details Apparatus for operating offtake and main valves Apparatus for operating offtake and main valves

1981-10-29

1983-05-10

Garris, Bradley

Distillation: apparatus

Apparatus

Elements

202258, 202270, C10B 2706, C10B 2900

Patent

active

043828418

ABSTRACT:
A gas conduit control system for a coking oven provides for sequential operation of a conduit cover and a seal on a transition element which communicates between the conduit and a gas collection main conduit. The system includes two pivotally connected shafts and two bell crank levers wherein the cover element is connected to one bell crank lever and the seal is connected to the other bell crank lever. One bell crank lever is slotted to permit linear movement of a first shaft without accompanying movement of the associated bell crank lever. The other bell crank lever is pinned to a lengthwise slot in a second shaft to permit lengthwise movement of the second shaft without accompanying movement of that bell crank lever. A hydraulic piston is an element of the first shaft which operates the system by extension and retraction.

REFERENCES:
patent: 1847804 (1932-03-01), Allen
patent: 3580815 (1971-05-01), Tucker
patent: 3858609 (1975-01-01), Stanke et al.

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