MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
Metal drawing (continuous casting B 22 D 11/00; pressure welding by means of a rolling mill B 23 K 20/04)
1
/
00
Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
1
/
02
•
Drawing metal wire or like flexible metallic material by drawing machines or apparatus in which the drawing action is effected by drums
1
/
04
•
•
with two or more dies operating in series
1
/
06
•
•
•
in which the material slips on the drums
1
/
08
•
•
•
in which the material does not slip on the drums
1
/
10
•
•
•
•
with accumulation of material between consecutively-arranged dies
1
/
12
•
•
Regulating or controlling speed of drawing drums, e.g. to influence tension; Drives; Stop or relief mechanisms (couplings for drums B 21 C 1/14; design or construction of electrical equipment, see the relevant classes)
1
/
14
•
•
Drums, e.g. capstans (capstans or winches in general B 66 D); Connection of grippers thereto; Grippers specially adapted for drawing machines or apparatus of the drum type; Couplings specially adapted for these drums
1
/
16
•
Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes
1
/
18
•
•
from stock of limited length (B 21 C 1/22 takes precedence)
1
/
20
•
•
from stock of essentially unlimited length (B 21 C 1/22 takes precedence)
1
/
22
•
•
specially adapted for making tubular articles (bending sheet metal into tubular form by drawing B 21 D 5/10)
