Guiding and positioning mechanism for a plugging or drilling dev

Details Guiding and positioning mechanism for a plugging or drilling dev Guiding and positioning mechanism for a plugging or drilling dev

1978-09-18

1980-05-06

Rutledge, L. Dewayne

Metallurgical apparatus

Means sealing or opening aperture in vessel

266273, C21B 712

Patent

active

042013739

ABSTRACT:
A mechanism for guiding and positioning a workpiece of a machine for drilling or plugging a tap hole of a shaft furnace, the mechanism comprising a main pivot, a support arm which is rotatably mounted at one end on the main pivot, an intermediate arm having one end thereof pivotally fitted by an auxiliary pivot to the free end of the support arm, the auxiliary pivot being inclined with respect to the main pivot, a workpiece holding bar rotatably and adjustably mounted to the other end of the intermediate arm, said workpiece holding bar capable of having a workpiece mounted thereon, a guide rod pivotally mounted at one end to the intermediate arm and pivotally mounted at the other end to a fixed point in the vicinity of the main pivot, and a drive mechanism serving to pivot the workpiece and the support arm about the main pivot from a retracted position to an operational position, the workpiece being in angular adjustment with respect to the tap hole, the adjustment being performed by rotating the workpiece holding bar with respect to the intermediate arm. In one embodiment of the invention the inclination of the auxiliary pivot with respect to the main pivot is provided for by a fixed bend in the support arm. In another embodiment of the invention, the inclination of the auxiliary pivot is provided for by a support arm having two segments, one segment being hinged and angularly adjustable with respect to the other segment.

REFERENCES:
patent: 3549141 (1970-12-01), Zimmermann et al.
patent: 3765663 (1973-10-01), Legille et al.
patent: 4097033 (1978-06-01), Mailliet

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