GB1393788A - Device for connecting together formwork panels - Google Patents

Abstract

1393788 Shuttering for concrete walls; structural elements J MAIER 19 April 1972 [21 April 1971] 18197/72 Headings E1S and E1K [Also in Division F2] Shuttering panels 1 adjacent a corner of a wall are connected at right angles by a hollow elongate angle member 3 having attachment means 7 at the ends 5 of its legs 4 which may be secured to edge flanges 2 on the rear of the panels 1, and either the inner surfaces 9 or the outer surfaces 6 of the legs of the angle member lie flush with the panels and form part of the shuttering surface, both pairs of surfaces being smooth and flat, with no projections. Whilst the connection for an inside corner is always as shown in Fig 2, various arrangements for an outside corner are possible with one or more angle members in different orientations, (Figs 5 to 8, not shown). As shown, the ends 5 of the legs are open, and the inner and outer parts of the angle member are connected at intervals by L-shaped plates 12 having end flanges 13 with slots 14 to form the attachment means 7; alternatively the ends 5 may be closed and apertured. The shuttering panel flanges 2 have corresponding apertures and are connected by bolts 15. The outer surfaces 6 of the angle member legs also have apertures, closable by stoppers when not in use, for connecting to panels or to other angle members, (Figs 5 and 7). The apertures in closed ends 5 and flanges 2 may be keyholeshaped and connected by rotatable bolts having cross-pins, (Figs 9 to 11, not shown).