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:
Apr. 25, 1978
Filed:
Sep. 24, 1976
David Albert Samokovliski, Sofia, BG;
Petko Kostadinov Grozdanov, Sofia, BG;
Alfred Emmerich Nemechek, Sofia, BG;
Simeon Georgiev Punchev, Sofia, BG;
Peter Dimitrov Petrov, Sofia, BG;
Institute po Zavaryavane, Sofia, BG;
Abstract
A planetary electrode-wire feeding device in which the calibrated pushing force exerted on the electrode wire by a pair of feed rollers is automatically adjusted. This automatic adjustment is effected by a cam which is drivingly connected to a drive motor. A housing is operatively drivingly connected to the cam for rotation via a pair of double-armed levers. The housing has a pair of radial bores in which a pair of pistons are respectively reciprocally mounted. Upon a predetermined rotation of the cam, one arm of the double-armed levers is pivoted outwardly and the other inwardly, thereby the pistons are pushed inwardly by the double-armed levers and, due to a wedging action between the levers and the housing, the latter begins to rotate and the electrode wire is pushed forwardly by feed rollers.