FR335749A - Perfectionnements apportés aux machines servant à la fabrication des tubes en acier et autres tubes métalliques, ainsi que des lingots et autres objets tubulaires
- Google Patents
Perfectionnements apportés aux machines servant à la fabrication des tubes en acier et autres tubes métalliques, ainsi que des lingots et autres objets tubulaires
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.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by IndividualfiledCriticalIndividual
Application grantedgrantedCritical
Publication of FR335749ApublicationCriticalpatent/FR335749A/fr
B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B21B—ROLLING OF METAL
B21B17/00—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling
B21B17/08—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel having one or more protrusions, i.e. only the mandrel plugs contact the rolled tube; Press-piercing mills
B21B17/12—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel having one or more protrusions, i.e. only the mandrel plugs contact the rolled tube; Press-piercing mills in a discontinuous process, e.g. plug-rolling mills
Landscapes
Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
FR335749D1902-12-241903-10-05Perfectionnements apportés aux machines servant à la fabrication des tubes en acier et autres tubes métalliques, ainsi que des lingots et autres objets tubulaires
ExpiredFR335749A
(fr)
Perfectionnements apportés aux machines servant à la fabrication des tubes en acier et autres tubes métalliques, ainsi que des lingots et autres objets tubulaires
Perfectionnements apportés aux machines servant à la fabrication des tubes en acier et autres tubes métalliques, ainsi que des lingots et autres objets tubulaires