Implements or apparatus for applying pushing or pulling force – Single throw lever and bar – Adjustable
Patent
1994-02-25
1994-12-06
Watson, Robert C.
Implements or apparatus for applying pushing or pulling force
Single throw lever and bar
Adjustable
254131, B66F 1100
Patent
active
053703650
ABSTRACT:
An erecting tool for converting an articulated flat plate from a folded storage condition to a flat deployed condition, includes an elongated main lever, an extension arm, a hook member and an auxiliary lever. The main lever is adapted to be placed at and pivoted about a stationary location on a dock toward and away from the articulated flat plate. The extension arm is rigidly attached to and extends outwardly in a cantilevered transverse relationship from a lower portion of the main lever. The hook member has an upper end pivotally coupled to the outer end of the extension arm such that the hook member extends below the extension arm. The hook member also has an outer end shaped to hook under an outer edge of the articulated flat plate and to begin lifting the plate upon pivoting the main lever in a rearward direction. The auxiliary lever is pivotally attached to the extension arm adjacent to and inwardly from the hook member. The auxiliary lever is depressable and the main lever and extension arm therewith are pivotal toward the articulated flat plate such that the hook member causes forward extension of the articulated flat plate and thereby conversion of the articulated flat plate from the folded storage condition to the flat deployed condition.
REFERENCES:
patent: 5154399 (1992-10-01), Swanson
patent: 5161292 (1992-11-01), Kurtyak et al.
patent: 5176363 (1993-01-01), Bowlin
patent: 5181694 (1993-01-01), Collins
patent: 5292107 (1994-03-01), Chick
Flanagan John R.
Watson Robert C.
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