Apparatus for forming a slot in a headless screw

Details Apparatus for forming a slot in a headless screw Apparatus for forming a slot in a headless screw

1997-03-18

1998-11-10

Hail, III, Joseph J.

Threaded, headed fastener, or washer making: process and apparat

Apparatus for making externally threaded fastener or...

Screw fastener making

470 62, 470164, 470179, 470904, B21H 302

Patent

active

058335439

ABSTRACT:
An apparatus for forming slots in headless screws includes a rotatable disc holding, along its circumferential end, a plurality of clamps which extend radially and are spaced apart circumferentially and which respectively have radial screw receiving spaces opening at the circumferential end, a feeding member provided above the rotatable disc to drop screws into the screw receiving spaces successively, a rotary cutter unit provided downstream of the feeding member for successively cutting the ends of the screws exposed from the screw receiving spaces, and a press member provided adjacent to the rotary cutter unit for successively pressing the clamps to their clamping positions. Each clamp has first and second components which include connecting parts interconnected to one another and clamping parts having cavities that complement one another to form the screw receiving space. The clamping part of the second component is bendable towards the clamping part of the first component when pressed by the press member.

REFERENCES:
patent: 2746065 (1956-05-01), Poupitch
patent: 2980928 (1961-04-01), Wallace et al.
patent: 3222702 (1965-12-01), Lofgren et al.
patent: 3760443 (1973-09-01), Jackson
patent: 4030153 (1977-06-01), Shemtov

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