Metal deforming – By use of tool acting during relative rotation between tool... – Tool orbiting or rotating about an axis
Patent
1978-12-20
1980-05-06
Husar, Francis S.
Metal deforming
By use of tool acting during relative rotation between tool...
Tool orbiting or rotating about an axis
72391, 72454, B21J 1538
Patent
active
042010721
ABSTRACT:
A tool for toggle-screw anchors in which the anchor sleeve has flanged and threaded ends and an intermediate longitudinally slotted section which collapses radially outwardly (to grip the rear side of a wall while the flanged end is engaged with the front side of the wall) upon movement of the threaded end toward the flanged end, the tool herein being characterized in the provision of an L-shaped body having an elongated tubular leg with an actuating screw extending therethrough and projecting axially beyond one end thereof for screwing of the anchor sleeve thereonto with its flange snugly engaged with one end of the tubular leg while the other end of the tubular leg is engaged by the head of the screw. The body also has an elongated radially extending leg which is adapted to be held against the front side of the wall to position the tubular leg, screw, and anchor sleeve thereon perpendicular to the wall when the anchor sleeve is inserted into the hole in the wall. The outer end of the tubular leg constitutes a bearing surface as high torque is applied on the screw as by a cross bar or by a wrench engaged with wrench-engaging flats on the head of the screw to cause drawing of the threaded end of the anchor toward the flanged end while the radially extending leg of the body is held against the front side of the wall and against turning.
REFERENCES:
patent: 1102937 (1914-07-01), Malaby
patent: 2428458 (1947-10-01), Hollwarth
patent: 2641378 (1953-06-01), Wilt
patent: 3587271 (1971-06-01), Rigot
patent: 3861185 (1975-01-01), Maddox
patent: 3933019 (1976-01-01), Underland
patent: 4038851 (1977-08-01), Coloma
patent: 4086799 (1978-05-01), Brendle
patent: 4121444 (1978-10-01), Duran
Crosby Gene P.
Husar Francis S.
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