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US 5,426,907 AGranted
Construction crane base
OwnerJames W. Franklininventor
Life of this patent
Estimating the term…
Abstract
A platform assembly is designed for use in supporting a crane during the construction of a multi-story building. The assembly includes a platform for supporting a crane and means for cantilevering the platform from differing locations along the length of a structural column of such building during construction of the latter.
Claims13
In a platform assembly for use with a crane during the construction of a multi-story building, the combination comprising:
- (a) a platform for supporting a crane having a winch;
- and
- (b) means for cantilevering said platform from differing locations along the length of a generally vertical structural column of said building during construction of said building.
In a construction arrangement supporting a crane during the construction of a multi-story building, the combination comprising:
- (a) a platform for supporting a crane rotatably thereon;
- (b) means for cantilevering said platform from differing locations on a structural column of said building along the length of said column during construction of said building;
- and
- (c) a hoisting arrangement for selectively moving said platform vertically along said structural column.
1 more element
Dependencies are inferred from the claim text.