Material or article handling – Apparatus for moving material to a position in the erection... – Flat wall or ceiling member manipulating means
Patent
1993-02-17
1994-11-29
Huppert, Michael S.
Material or article handling
Apparatus for moving material to a position in the erection...
Flat wall or ceiling member manipulating means
254 4C, 254 6C, B66F 912
Patent
active
053684290
ABSTRACT:
The invention comprises a panel lifting apparatus having at least three telescoping elongated sections telescoping into one another and all telescoping into a non-telescoping elongated frame member. Three separate chain length segaments not directly connected to one another act to raise and lower the telescoping sections. The first chain segament has its upper and lower end mounted to the upper and lower end of the first telescoping section. The second chain segament has its upper end connected to the upper end of the non-telescoping section and its lower end connected to the lower end of the second telescoping section. The third chain segament has its upper end connected to the upper end of the first telescoping section and its lower end connected to the lower end of the third telescoping section. The non-telescoping section has a gear drive with its output gear engaging the first chain segament to raise and lower the first chain segament to thereby raise and lower the first telescoping section. The raising and lowering of the first telescoping section raises and lowers simultaneously the second and third telescoping sections through the chain segament connections.
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Huppert Michael S.
Kleve Robert E.
Lowe Scott L.
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