Formwork and connecting means apparatus for casting reinforced c

Details Formwork and connecting means apparatus for casting reinforced c Formwork and connecting means apparatus for casting reinforced c

1975-11-06

1977-05-10

Lazarus, Richard B.

Static molds

Mold element

In situ construction engineering or building type

249189, 249192, 249219R, 249219W, E04G 906, E04G 1704

Patent

active

040224201

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.

REFERENCES:
patent: 906493 (1908-12-01), Guthrie
patent: 1538496 (1925-05-01), Wells
patent: 2808624 (1957-10-01), Sullivan
patent: 3066962 (1962-12-01), Koehler
patent: 3244395 (1966-04-01), Arrighini

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