Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B21B—ROLLING OF METAL
B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
B21B31/16—Adjusting or positioning rolls
B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
B21B31/22—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis mechanically, e.g. by thrust blocks, inserts for removal
B21B31/24—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis mechanically, e.g. by thrust blocks, inserts for removal by screws
Dispositif de mise en rotation des écrous cylindriques de plusieurs boulons filetés disposés en cercle pour la fermeture d'une enceinte à pression, notamment d'une cuve de réacteur