B21G

MAKING NEEDLES, PINS OR NAILS OF METAL

In this subclass non-limiting references (in the sense of paragraph 39 of the Guide to the IPC) may still be displayed in the scheme.

B21G1/00

Making needles used for performing operations forming heads on pin-like needles B21G3/12; making U-shaped hairpins B21G7/04

B21G1/003

Needles for special purposes, e.g. knitting, crochet, hat-pins

B21G1/006

Special treatments of pins or needles, e.g. annealing, straightening

B21G1/02

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

B21G1/04

of needles specially adapted for use in machines or tools

B21G1/06

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

B21G1/08

of hollow needles or needles with hollow end, e.g. hypodermic needles, larding-needles B21G1/10 takes precedence

B21G1/10

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

B21G1/12

Securing, cleaning-off burrs, reconditioning polishing, grinding takes precedence over B21G1/02 - B21G1/10

B21G3/00

Making pins, nails, or the like of pins with individual caps B21G5/00; of U-like shape B21G7/00; of split-pins B21G7/08

B21G3/005

Nails or pins for special purposes, e.g. curtain pins

B21G3/02

of pins of the kind used in the tailoring trade or the house- hold

B21G3/04

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

B21G3/06

of nails with shoulders

B21G3/08

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

B21G3/10

of undulated nails or pins

B21G3/12

Upsetting

Forming heads

B21G3/14

Reducing diameter of parts otherwise than by rolling

B21G3/16

Pointing

with or without cutting

B21G3/18

by operations not restricted to one of the groups B21G3/12 - B21G3/16 B21G3/06 - B21G3/10 take precedence

B21G3/20

from wire of indefinite length by rolling B21G3/30

B21G3/22

in pairs arranged head to head

B21G3/24

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

B21G3/26

by cutting from strip or sheet material

B21G3/28

by forging or pressing

B21G3/30

by rolling

B21G3/32

Feeding material to be worked to nail or pin making machines

B21G5/00

Making pins or nails with attached caps or with coated heads

B21G5/02

of drawing-pins or pins of drawing-pin type

B21G7/00

Making pins of U-like shape or split-pins of paper fasteners or staples B21D53/46, B21F45/16

B21G7/02

of U-like shape

B21G7/04

of hairpins

B21G7/06

of undulated hairpins

B21G7/08

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