Tool for crimping a corner bead piece over an exterior plasterbo

Details Tool for crimping a corner bead piece over an exterior plasterbo Tool for crimping a corner bead piece over an exterior plasterbo

1985-12-16

1987-06-09

Watson, Robert C.

Metal working

Means to assemble or disassemble

Overedge assembling means

29275, B23P 1100

Patent

active

046709576

ABSTRACT:
The disclosed crimping tool has two faces substantially normal to one another across an interior corner, which fit then against and over a corner bead piece, which in turn is positioned against and over an exterior structural corner of meeting plasterboard sheets. A post extends rearwardly away from the faces, and a striker is mounted to move on the post. A crimping pin is carried relative to each face, connected at their remote ends to the striker, and connected relative to the frame by means of a shaft fitting through an angled slot in each crimping pin. As arranged, each crimping pin is operable to move from one axial position with a die end recessed behind the faces to another axial position with the die end projected forwardly beyond the faces. The crimping pins are angled relative to one another and relative to each respective tool face. Movement of each crimping pin from the recessed position to the projected position, causes the die end initially to just pass over the edge of the underlying corner bead piece and then to move laterally against the edge of the underlying corner bead piece. The striker is hit with a mallet to drive the crimping pins with enough force to crimp the corner bead piece to the structural corner.

REFERENCES:
patent: 969471 (1910-09-01), Grossman
patent: 2178187 (1939-10-01), Sake
patent: 2358142 (1944-09-01), Carlin
patent: 2859445 (1958-11-01), Larrabee
patent: 3160890 (1964-12-01), Lefebvre
patent: 4021516 (1977-05-01), Stevenson
patent: 4593443 (1986-06-01), Wolford

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