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. 18, 1982
Filed:
Aug. 11, 1980
Harry C Ledebur, Canfield, OH (US);
Wean United, Inc., Pittsburgh, PA (US);
Abstract
Disclosed is a vertical stand of a sizing mill for rolling seamless tube in which each roll of the mill is contained in and supported by a yoke moveable both transversely of the product passline and axially of the roll axis, the latter adjustment being performed by an elevator arranged normally at the bottom of the mill for moving both yokes as a unit with their rolls, i.e. a yoke-roll set, through the top of the stand to a roll changing position where both yokes are transferred as a unit to one of two in-lined arranged side shifting carriages supported by the stand, the arrangement being such that when a used yoke-roll set is moved away from the stand at the top thereof by one of the carriages a replacement yoke-roll set is positioned above the stand of the other carriage in readiness to be received and lowered into the stand by the elevator.