Valve suitable for controlling teeming from furnace tapholes

Details Valve suitable for controlling teeming from furnace tapholes Valve suitable for controlling teeming from furnace tapholes

F - Mech Eng,Light,Heat,Weapons

27

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39/113

F27D 3/14 (2006.01) B22D 41/24 (2006.01) F27D 3/15 (2006.01)

Patent

CA 1208904

ABSTRACT VALVE SUITABLE FOR CONTROLLING TEEMING FROM FURNACE TAPHOLES Metal flow from furnace taphole to a pouring trough is controlled by a valve interposed therebetween, the valve having a stationary orificed valve plate and a companion slide plate for closing or opening the orifice to flow. An actuating beam member forming part of a parallel motion linkage extends upwardly and obliquely from the slide plate, the actuating member being thrust against the slide plate by a swinging spring strut of the linkage. A ram connected to the linkage via a crank, a shaft and a pivoted lever displaces the linkage when extended or contracted and this moves the actuating member along a predetermined path, its oblique attitude being preserved, to open or shut the valve.

401985

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