Dismountable tower for interior maintenance of spherical tanks

Details Dismountable tower for interior maintenance of spherical tanks Dismountable tower for interior maintenance of spherical tanks

1978-07-07

1979-08-28

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Scaffold supported internally on shaft

182 2, E04G 310, E04H 700

Patent

active

041657993

ABSTRACT:
The present invention refers in general to dismountable structures, and more particularly involves a dismountable structure for inside maintenance in spherical tanks, providing two rotatable towers, one atop the other, with anti-friction bearings for rotation up to 360.degree., supported at top and bottom by rotary elements, and having at mid-section hinged arms carrying baskets and auxiliary arms and a rotary device for movement upward and downward for vertical work for the basket-supporting arms; it comprises in addition operating baskets having capacity to carry operators and inspection and maintenance equipment with illumination; the structure also affords safety winches with rack levers for raising and crank for descending, as well as auxiliary cable arms to provide a suitable angle of loading.

REFERENCES:
patent: 1864934 (1932-06-01), Reeves
patent: 3306396 (1967-02-01), Goss
patent: 3556252 (1971-01-01), Atkins
patent: 4068419 (1978-01-01), Decoppet

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