B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
B23K37/00—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass
B23K37/02—Carriages for supporting the welding or cutting element
B23K37/0205—Carriages for supporting the welding or cutting element guided by hand
Procede et dispositif pour rendre etanche a une pression elevee la partie du cote de l'entrainement d'une chambre de preparation et d'hydrogenation par l'hydrogene du charbon en hydrocarbures
Improvements in or relating to apparatus for the heat treatment of elongated metal bodies having longitudinally spaced surface portions to be heat treated