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:
Mar. 10, 1987
Filed:
Aug. 27, 1985
Hans R Zollinger, Geroldswil, CH;
H. A. Schlatter AG, Schlieren, CH;
Abstract
The apparatus possesses work locating fixtures or clamping devices for clamping edge areas of hollow cylindrical blanks as well as a facility for pressing together the mutually confronting edges of axial slits of the blanks. One of the jaws of each work locating fixture or clamping device is connected to a source of welding current. To prevent substantial elastic deformations of the apparatus caused by the very high clamping forces of the work locating fixtures or clamping devices as well as compression forces before, during and after welding and to render possible a feeding and removing of the blanks or wheel rim hoops, transverse to the axis of the blanks, each work locating fixture or clamping device possesses two movable clamp or pincer-type partial jaw members which cooperate with an associated fixed clamping jaw. These partial jaw members act axially from both sides toward the inner circumference of the blank and their pivotal movements are independent of their essentially linear advance or approach motion toward the associated fixed clamping jaw.