ROOFING Russian patent published in 1994 - IPC

Abstract RU 2013506 C1

FIELD: construction. SUBSTANCE: roofing slab is made of outer and inner casings with concrete layer between them. Casings are made of autotiers radially cut and having up to 40 radial subcuts of sides and removed through 2/3 of their height. Theirs are turned with their treads outside and adjacent to one another with their outer side faces of adjacent rows. Legs of one tire are brought into cavity of another. Slab is coated with insulating compound and grit. EFFECT: higher efficiency. 4 dwg

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RU 2 013 506 C1

Authors

Volkov V.V.

Boltovskij V.A.

Tavlinova T.I.

Volkova V.V.

Dates

1994-05-30—Published

1991-02-01—Filed