Pedestal crane and method of assembling and erecting it

Details Pedestal crane and method of assembling and erecting it Pedestal crane and method of assembling and erecting it

1987-12-09

1989-08-15

Basinger, Sherman D.

Traversing hoists

Having means facilitating assembly or disassembly

Of sectional vertical support from boom

212175, 212177, B66C 2332

Patent

active

048566624

ABSTRACT:
A method of installing a boom on the top of a high vertical tower comprising vertically positioning a first tower section and securing the tower section to a base; installing a plurality of additional tower sections in consecutive order on top of the first tower section and securing the adjoining sections together until a tower is erected having a desired height; a boom having a base section, at least one extendable section and a load lifting end; releasably attaching the boom in vertical position to and along side the tower as it is erected with the boom load lifting end at the bottom; jumping the boom vertically upwardly by alternately extending and retracting various boom sections as the tower sections are installed; positioning the boom base end adjacent the boom turret, tilting the boom turret into close contact with the boom base end and joining the turret to the boom base end by a horizontal boom footpin; releasing the boom lifting end from the tower; tilting the turret into contact with the adapter upper portion top end and releasably securing the turret to the adapter; and attaching apparatus to the boom for pivoting the boom vertically about the horizontal boom footpin.

REFERENCES:
patent: 3934729 (1976-01-01), Wellman

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