Metal deforming – By relatively movable offset tool-faces – With tool motion in fixed path
Patent
1980-05-12
1981-12-29
Crosby, Gene P.
Metal deforming
By relatively movable offset tool-faces
With tool motion in fixed path
72114, B21B 3100
Patent
active
043075983
ABSTRACT:
In one exemplar embodiment a tool for collapsing hollow-wall anchors is disclosed. The tool includes a pair of elongated handles one of which is designed to remain stationary while the other is mounted in a spaced-apart relationship to the stationary handle for limited pivotal movement with respect thereto. One end of the stationary handle has a head including an open-ended base plate with a slot disposed therein for accepting the shank of the bolt of a conventional wall anchor. A jaw member is pivotally attached to one end of the pivotable handle and adaped for reciprocal movement with respect to the base plate of the head. The jaw also has a slot disposed therein for engaging the head of the bolt for exerting an outward axial force on the anchor bolt when the pivoting handle is closed toward the stationary handle to collapse the anchor. Spring means disposed between the handles resists the closure force exerted on the pivoting handle and returns the pivoting handle to an open position when closure force is removed.
REFERENCES:
patent: 1102937 (1914-07-01), Malaby
patent: 2115251 (1938-04-01), Buck
patent: 2430563 (1947-11-01), Gill
patent: 2582417 (1952-01-01), Croessant
patent: 4038851 (1977-08-01), Coloma
patent: 4086799 (1978-05-01), Brendle
Crosby Gene P.
Springs Darryl M.
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