Expander tool

Details Expander tool Expander tool

1975-03-26

1976-10-19

Lanham, C.W.

Metal deforming

By relatively receding work-engaging tool-faces

Embodying three or more tools

29263, 269 481, B21D 4102

Patent

active

039863832

ABSTRACT:
An expander tool for truing thin walled tubing, the tool including improved means for equalizing expansion forces applied to expansion elements and other interrelated components incorporated in the tool, the tool also including improved clutch means for preventing over expansion of the tool and improved means for releasing the expansion elements and interrelated components when forces tending to expand the tool are reduced.

REFERENCES:
patent: 1625131 (1927-04-01), Miller
patent: 1831003 (1931-11-01), Holland
patent: 2226078 (1940-12-01), Spahn
patent: 2672175 (1954-03-01), Howard
patent: 2899741 (1959-08-01), Dunkerley
patent: 2991674 (1961-07-01), Uhl
patent: 3077916 (1963-02-01), Vaughn
patent: 3654797 (1972-04-01), Skalsey

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