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:
Aug. 20, 1996
Filed:
Aug. 02, 1995
Zinser Textilmaschinen GmbH, Ebersbach/Fils, DE;
Abstract
In a ring-spinning machine having a frame and a spindle bank holding a row of bobbins, a bobbin-changing apparatus has a gripper beam engageable with the bobbins of the spindle banks and movable between an upper and a lower position and a scissor linkage pivoted on the frame and on the gripper beam extendable for raising the beam and collapsible for lowering the beam. The linkage has a pair of arms both of which have lower ends, one of which is long and has an upper end pivoted on the beam and the other of which is short and has an upper end pivoted on the long arm below the beam. One of the lower ends is pivoted on and fixed against longitudinal movement on an abutment. A guide is longitudinally displaceable on the frame and the other lower end is pivoted on it. A spring-biasing unit exerts torque on one of the ends of one of the arms for upwardly biasing the beam at least in the lower position of the beam.