Formwork and connecting means apparatus for casting reinforced concrete
OwnerAnacleto Paceinventor
Life of this patent
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Abstract
Formwork apparatus for casting concrete comprising a plurality of flattened tubular elongated elements each having one wall with an outer surface for contacting cast concrete and an opposite wall with a series of aligned apertures therein. The elongated elements are assembled in juxtaposed relation to constitute the form work by means of retainers which are disengageably interfittable with adjacent elongated elements. Each retainer includes two projecting flanges which penetrate into the interior of apertures of adjacent elongated elements and the flanges are provided with notches for engaging the walls of the elements at the ends of the apertures so as to lock the elements in place.
Claims7
Formwork for casting concrete comprising a plurality of flattened tubular elongated elements each having one wall with an outer surface for contacting cast concrete and an opposite wall with aperture means therein, and retainer means disengagably interfitted with at least two of said elongated elements holding the same in assembled juxtaposed relation, said aperture means in each said tubular elongated element being constituted by a series of longitudinal aligned apertures of trapezoidal shape, said retainer means including two flanges with notches therein, said flanges being secured together and engaged in the adjacent apertures of two juxtaposed elongated elements with said notches receiving the walls bounding the apertures.
Dependencies are inferred from the claim text.