Tube expanding tool

Details Tube expanding tool Tube expanding tool

1986-07-07

1988-04-05

Larson, Lowell A.

Metal deforming

By relatively receding work-engaging tool-faces

Embodying three or more tools

72451, B21D 3920

Patent

active

047350784

ABSTRACT:
A tube expanding tool is disclosed which is of the character comprising a body having a fixed handle and a pivotal handle by which tapered drift pin is displaced relative to radially expandable jaws mounted on the body. A rigid link member is pivotally connected between the drift pin and pivotal handle to displace the drift pin to expand the jaws and to provide positive withdrawal of the pin from the jaws following a tube expanding operation.

REFERENCES:
patent: 880712 (1908-03-01), Berthiaume et al.
patent: 2277360 (1942-03-01), Wagner
patent: 2480630 (1949-08-01), Brinen et al.
patent: 2575416 (1951-11-01), Henshaw
patent: 3550424 (1970-12-01), Rast
patent: 3821890 (1974-07-01), Dewey
patent: 3837211 (1974-09-01), Gress et al.
patent: 3841133 (1974-10-01), Rice, Jr.
patent: 4043164 (1977-08-01), Brookman
patent: 4043171 (1977-08-01), Brookman
patent: 4237718 (1980-12-01), Greenwood
patent: 4425783 (1984-01-01), Rast

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