Material or article handling – Apparatus for moving material to a position in the erection... – Flat wall or ceiling member manipulating means
Patent
1991-05-13
1993-07-06
Werner, Frank E.
Material or article handling
Apparatus for moving material to a position in the erection...
Flat wall or ceiling member manipulating means
414590, 414743, 414732, 414621, 414639, 74105, B66F 1100
Patent
active
052248089
ABSTRACT:
A wall board lifting and positioning apparatus which includes an elongated boom having first and second ends and apparatus for holding an associated individual panel. The apparatus for holding is carried on the elongated boom proximate to the first end thereof and apparatus for moving the boom through a plurality of substantially coplanar positions. The apparatus includes apparatus for pivoting and rotating the apparatus for holding to position the apparatus for holding. In some forms of the invention the apparatus for moving includes a first elongated control link and a second elongated control link. The boom may be supported on a head member. The first control link and the second control link may be each pivotally connected to the head member and may also be pivotally connected to the boom.
REFERENCES:
patent: 2815132 (1957-12-01), Stone
patent: 2828870 (1958-04-01), Corley
patent: 3058602 (1962-10-01), Kilman
patent: 4150755 (1979-04-01), Trott et al.
patent: 4175899 (1979-11-01), Tipton
patent: 4676713 (1987-06-01), Voelpel
patent: 4696613 (1987-09-01), Hahn
patent: 4859138 (1989-08-01), Brocklebank et al.
Smith Robert S.
Werner Frank E.
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