Method of fabricating sewing machine needles

Details Method of fabricating sewing machine needles Method of fabricating sewing machine needles

1976-07-16

1977-07-26

Custer, Jr., Granville Y.

Needle and pin making

Needle making

Processes

B21G 102

Patent

active

040376419

ABSTRACT:
The steps in the manufacture of a sewing machine needle are disclosed in which the needle blade is shaped by first being subjected to a flow-pressing operation to form a groove with raised side flanges and thereafter the eye portion is subjected to a die pressing operation which can further raise the side flanges. The needle is then completed by eye punching, pointing, and fin removal.

REFERENCES:
patent: 3333623 (1967-08-01), Recknagel et al.
patent: 3589428 (1971-06-01), Masajima

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