Headpiece assembly

Details Headpiece assembly Headpiece assembly

1985-03-04

1986-07-01

Gilden, Leon

Metal deforming

By use of non-deforming work-gripping clamp and relatively...

With interrelated clamp closer and tool mover

413 56, B21D 1104

Patent

active

045972800

ABSTRACT:
A headpiece assembly for forming a rolled flange on the border of a collar associated with an annular lid. A sleevelike headpiece is axially slidably supported on a shaft and projects downwardly so as to surround and cooperate with a plurality of clamping levers. The clamping levers at the lower free ends have a clamping part which moves into a radially inward position wherein the clamping part is axially aligned below an annular flange-forming recess, the latter being formed on a pressure plate which is mounted on the lower end of the shaft for limited axial movement therebetween. The pressure plate and the lower free ends of the levers are disposed axially downwardly from the sleevelike headpiece. Downward movement of the headpiece cams the clamping levers radially inwardly to a position below the pressure plate, and causes the headpiece to engage the pressure plate and move it downwardly so as to effect formation of a rounded flange on the metal collar.

REFERENCES:
patent: 1572376 (1926-02-01), Bingham
patent: 1772599 (1930-08-01), Dobson
patent: 2840134 (1958-06-01), Rayburn
patent: 2843175 (1958-07-01), Black et al.
patent: 4420283 (1983-12-01), Post
patent: 4439082 (1984-03-01), King
patent: 4442693 (1984-04-01), Walter

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