Coffer for the formation of lost formwork concrete slabs. (Machine-translation by Google Translate, not legally binding)

摘要

Cassette for the formation of lost formwork of concrete slabs, comprising a base plate of one of whose surfaces protrude perpendicularly walls delimiting contours, separated by an intermediate channel and crossed internally by partitions, whose contours are closed by plant covers coincident, characterized in that two equal contours protrude from the base plate, twice as long as their width, parallel longitudinally and spaced so as to define the intermediate channel between two of their longitudinal walls, the other two major walls being in line with two of the opposite edges of the plate; arranging the plate in the other two edges of mutual crimping means and projecting said plate with respect to the contours by at least one of these two edges; and in that the walls and partitions of the contours and covers have on their mutual support surfaces interlocking means that impede relative transverse displacements and are engageable by arranging said cover and contour in positions coincident or offset 90º each other. (Machine-translation by Google Translate, not legally binding)