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.
Patent No.:
Date of Patent:
Dec. 11, 1979
Filed:
Nov. 25, 1977
David A Samokovliski, Sofia, BG;
Angel S Angelov, Sofia, BG;
Georgi N Nachev, Sofia, BG;
Peter D Petrov, Sofia, BG;
Alfred E Nemechek, Sofia, BG;
Iliyana I Vajarova, Sofia, BG;
CUV 'Progress', Sofia, BG;
Abstract
Apparatus for the planetary feeding of electrode wire having means for adjusting the pushing force exerted on the electrode wire by electromagnetic means. Opposed canted rolls are mounted for rotation about their axes upon a first housing part which is rotatable about the axis of an elongated electrode wire which passes between and is fed by the canted rolls. A second housing part, which is disposed coaxially of the first housing part, bears means such as a cam or a cone which interacts with roll adjusting means mounted on the first housing part so as to adjust the force with which the canted rolls engage the electrode wire in accordance with relative motion between the two housing parts. The second housing part is driven for rotation about its axis. The degree of motion of the two housing parts relative to each other, thereby to vary the force with which the canted rolls engage the electrode wire, is determined by an externally controlled electromagnetic means which can be adjusted while the welding apparatus is in continuous operation.