Method and apparatus for constructing multi-storied concrete bui

Details Method and apparatus for constructing multi-storied concrete bui Method and apparatus for constructing multi-storied concrete bui

1983-03-17

1984-07-31

Czaja, Donald E.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Shaping against forming surface

249 28, 264 33, 2642711, 425 62, B28B 1306

Patent

active

044629516

ABSTRACT:
Disclosed is a method and apparatus for extracting large form panels used in forming floor slabs on poured-in-place, multi-story concrete structures from beneath the slab they last formed. The preferred embodiment apparatus, called a panel picker, includes a frame held by a crane above and adjacent to the last formed slab; the frame is anchored to the slab and contains hoists on movable trolleys for attaching to and lifting the form panel. The movement of the trolleys permits attachment to the panel picker to be made in two steps and without the panel being unsupportedly cantilevered out to where a crane could attach directly to the panel.

REFERENCES:
patent: 3450280 (1969-06-01), Colnot
patent: 3788494 (1974-01-01), Markewitz et al.
patent: 3966164 (1976-06-01), Dashew
patent: 3977536 (1976-08-01), Moore et al.
patent: 4003541 (1977-01-01), Lanier

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