The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 14, 1980

Filed:

Sep. 18, 1978
Applicant:
Inventors:

Leon Ulveling, Howald, LU;

Pierre Mailliet, Howald, LU;

Jean Metz, Luxembourg, LU;

Assignee:

Other;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C21C / ;
U.S. Cl.
CPC ...
266271 ; 266273 ; 408237 ;
Abstract

An apparatus for guiding and positioning the tool of a machine for plugging or drilling blast furnace tapholes, the apparatus comprising an inclined main pivot, a support arm which is rotatably mounted at one end on the inclined main pivot and having a tool pivotally fitted by an auxiliary pivot to the free end of the support arm, a guide rod mounted to the working tool and mounted to a fixed point in the vicinity of the main pivot, and a driving mechanism serving to pivot the tool and the support arm about the main pivot from a retracted position to an operational position, the longitudinal axis of the auxiliary pivot being oblique with respect to the longitudinal axis of the main pivot to provide for a low profile trajectory of the working tool.


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