Movable support mechanism for construction of elevator shafts and the like
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 4, 1990
Grant Date -
N/A
app pub date -
Jun 12, 1989
filing date -
Jun 12, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus has been provided for vertically lifting or lowering a workman and/or materials at a construction site. This includes a rectangular platform having four corners for supporting the workman and/or material so that they can be vertically moved within an elevator shaft or the like. The platform has side edges positioned adjacent the side walls of the shaft. The platform can be raised or lowered by a crane. Recesses are provided in opposite side walls for receiving latches attached to the corners of the platform. The latches are locked in place when they are positioned within the recesses and can be retracted when the platform is to be raised and lowered. Also, leveling devices are provided at the corners of the platform for leveling the panels and devices are also provided for holding the panels in proper location prior to pouring the concrete.
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Cited Art Landscape
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