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:
May. 10, 1983
Filed:
May. 06, 1981
Applicant:
Inventor:
Francois Corcelle, Pouilly, FR;
Assignee:
Ateliers des Charmilles S.A., Geneva, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23P / ;
U.S. Cl.
CPC ...
219 / ; 218 / ;
Abstract
A threading mechanism for threading the electrode wire of a travelling wire EDM apparatus, the end of the electrode wire being passed through a starter hole or aperture in the workpiece prior to effecting a cutting operation in the workpiece, wherein the entrance throat to the wire conveying mechanism adapted to take hold of the wire after passage through the starter aperture is offset laterally relative to the axis of the starter hole such as to laterally displace the wire to engage the wire with a guiding surface and a current feeding surface which are also offset relative to the axis of travel of the wire through the starter aperture.