Method for casting material using a collapsible structure

Abstract

Abstract Apparatus for rigidly locking together a collapsible structure including an outer clamping structure having first and second interconnected sides. The sides are spaced apart and each side receives one of the pair of form sides to be clamped. The facing surfaces of the first and second sides of each have a stop defining a plane against which the edges of one of the form sides may be positioned. The outer clamping structure has at least one opening therethrough intermediate the sides. A wedge is positioned for engagement on the opposite sides of each of the form sides from the first and second sides of the outer clamping structure. A coupling member movably extends through the opening and has an end coupled to the inner clamping member. A retracting and lock member retracts the wedge toward the first and second sides to thereby wedge the pair of form sides therebetween. A method for constructing a concrete structure is disclosed utilizing a collapsible form which includes form sides and corner clamps, and assembled form clamps. Each corner clamp has a pair of interconnected and disverging side members, a wedge and a retracting lock member for drawing the wedge toward the side members. The steps comprise the following: Position the edges of at least two of such form sides in between the side members and wedge of t least one corner clamp. Actuate the retracting lock member of the corner clamp to draw the wedge thereof into engagement with the form sides thereby rigidly locking the form sides between the wedge and the side members to form a multi-sides form assembly. Affixing the assembled form clamps to the form assembly to thereby rigidly hold the form assembly in place while pouring liquid concrete therein. Position liquid concrete into the thus formed form assembly.

Inventors

• 👤 Fred L Ecker

Bibliographic Details