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. 26, 1977
Filed:
May. 20, 1974
Applicant:
Inventor:
Pierre Peytavin, Neuilly-sur-Seine, FR;
Assignee:
Vallourec, Paris, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H / ;
U.S. Cl.
CPC ...
74 27 ;
Abstract
A drive device for clamp holder carriages of a continuously operating pilger rolling mill, comprising two carriages sliding on slides parallel to the rolling axis. Each carriage is coupled to a screw threaded rod, rotation of which causes movement of the carriage, each rod being provided with an axially movable nut held from rotation. A push rod is supported on the nuts to move the nuts and the screws in the rolling direction, each of the screws being rotatable in driving directions towards and away from the rolling mill so as to permit the return of one clamp holder carriage while the other feeds stock to the mill.