IPC 7 English version B21G-B21G 7/08

B21G-B21G00708

SECTION B – PERFORMING OPERATIONS; TRANSPORTING

B 21

MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL (casting, powder metallurgy B22; shearing B23D; working of metal by the action of a high concentration of electric current B23H; soldering, welding, flame-cutting B23K; other working of metal B23P; punching sheet material in general B26F; processes for changing of physical properties of metals C21D, C22F; electroforming C25D 1/00)

B 21 G

MAKING NEEDLES, PINS, OR NAILS

Making needles used for performing operations (forming heads on pin-like needles B21G 3/12; making U-shaped hairpins B21G 7/04)

Note

Group B21G 1/12 takes precedence over groups B21G 1/02 to B21G 1/10.

of needles with eyes, e.g. sewing-needles, sewing-awls

of needles specially adapted for use in machines or tools

of needles with hook or barb, e.g. crochet hooks

of hollow needles or needles with hollow end, e.g. hypodermic needles, larding-needles (B21G 1/10 takes precedence)

equipped with locking means for the material to be drawn through, e.g. for repairing tubeless tyres

Securing, cleaning-off burrs, reconditioning, polishing, grinding

Making pins, nails, or the like (of pins with individual caps B21G 5/00; of U-like shape B21G 7/00; of split-pins B21G 7/08) [2]

of pins of the kind used in the tailoring trade or the household

with locking or shielding device for the pin point, e.g. safety-pins

of nails with shoulders

of nails with head and two or more shanks or split shanks

of undulated nails or pins

Upsetting; Forming heads

Reducing diameter of parts otherwise than by rolling

Pointing, with or without cutting

by operations not restricted to one of the groups B21G 3/12 to B21G 3/16 (B21G 3/06 to B21G 3/10 take precedence)

from wire of indefinite length (by rolling B21G 3/30)

in pairs arranged head to head

by simultaneously forming the head of one nail and the adjacent point of another

by cutting from strip or sheet material

by forging or pressing

by rolling

Feeding material to be worked to nail or pin making machines

Making pins or nails with attached caps or with coated heads

of drawing-pins or pins of drawing-pin type

Making pins of U-like shape or split-pins (of paper fasteners or staples B21D 53/46, B21F 45/16)

of U-like shape

of hairpins

of undulated hairpins

of split-pins, e.g. cotter-pins